Alphabetical Report

The Alphabetical Report lists headword terms, plus an indented set of Extended Attributes, Relationship types and related terms.

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ABANDONMENT
   UF  ESCAPE (ABANDONMENT)
   NT  BAILOUT
   NT  DITCHING
   NT  SUBMARINE ESCAPE
   RT  EVACUATION

ABBREVIATIONS
SN: 01-JUN-1989
   UF  ACRONYMS
   RT  CODING
   RT  SYMBOLS

ABDOMEN
   BT  ANATOMY
   RT  PERITONEUM
   RT  STOMACH

ABELIAN FIELDS
   Use  ALGEBRA

ABELIAN GROUPS
   Use  GROUPS(MATHEMATICS)

ABLATION
   BT  WEAR
   NT  ABLATIVE MATERIALS
   RT  aerodynamic heating
   RT  COOLING
   RT  PYROLYSIS
   RT  VAPORIZATION

ABLATIVE MATERIALS
   BT  ABLATION
   BT  MATERIALS
   RT  HEAT SHIELDS
   RT  PHENOLIC PLASTICS

ABNORMAL PSYCHOLOGY
SN: INCLUDES GENERAL INVESTIGATIONS OF IRREGULAR MENTAL PHENOMENA, INCLUDING BEHAVIOR OR MENTAL DISORDERS, DREAMS, HALLUCINATIONS, AND MENTAL RETARDATION. FOR PREVENTION, DIAGNOSIS, AND THERAPY OF MENTAL DISTURBANCES, SEE PSYCHIATRY.
   UF  PSYCHOPATHOLOGY
   BT  PSYCHOLOGY

ABNORMALITIES
   NT  CONGENITAL ABNORMALITIES
   RT  DISTORTION
   RT  DYSFUNCTION
   RT  ECCENTRICITY

ABO INCOMPATIBILITY
   BT  BLOOD GROUP DISORDERS

ABORT
   BT  STOPPING
   RT  ABORTION

ABORTION
   RT  ABORT

ABRASION
   BT  WEAR
   RT  ABRASIVES
   RT  GRINDING

ABRASION RESISTANCE
   Use  WEAR RESISTANCE

ABRASIVE BLASTING
   BT  SURFACE FINISHING

ABRASIVE COATINGS
   Use  ABRASIVES

ABRASIVE WHEELS
   Use  GRINDING WHEELS

ABRASIVES
SN: WEARING, GRINDING, OR RUBBING AWAY BY FRICTION AND THE MATERIALS THAT PRODUCE THIS EFFECT.
   UF  ABRASIVE COATINGS
   UF  BROACH POWDERS
   RT  ABRASION
   RT  CERAMIC MATERIALS
   RT  CORUNDUM
   RT  GRIT

ABSCESSES
   UF  SUPPURATIONS
   BT  INFECTIOUS DISEASES
   RT  ACNE

ABSENTEEISM
SN: 01-SEP-1981 - CONTINUAL INTERRUPTION OF ATTENDANCE.
   BT  PERSONNEL MANAGEMENT

ABSORBERS(EQUIPMENT)
   NT  ENERGY ABSORBERS
   RT  ABSORBERS(MATERIALS)
   RT  AIR CLEANERS

ABSORBERS(MATERIALS)
   BT  MATERIALS
   NT  MOLECULAR SIEVES
   NT  TOWELS
   RT  ABSORBERS(EQUIPMENT)
   RT  DESICCANTS
   RT  HEAT SINKS
   RT  INSULATION
   RT  SEPARATORS

ABSORPTION
SN: THE RETENTION AND CONVERSION INTO ANOTHER FORM OF ENERGY OF RAYS, WAVES, OR PARTICLES BY A SUBSTANCE.
   UF  ABSORPTIVE PROPERTIES
   BT  SORPTION
   NT  BIOLOGICAL ABSORPTION
   NT  RESONANCE ABSORPTION
   NT  TWO PHOTON ABSORPTION
   NT  X RAY ABSORPTION ANALYSIS

ABSORPTION COEFFICIENTS
   BT  COEFFICIENTS
   NT  GAMMA RAY ABSORPTION COEFFICIENTS

ABSORPTION CROSS SECTIONS
   BT  NUCLEAR CROSS SECTIONS
   NT  RADIATIVE CAPTURE CROSS SECTIONS
   RT  RADIATION ABSORPTION
   RT  SCATTERING CROSS SECTIONS

ABSORPTION SPECTRA
   BT  ELECTROMAGNETIC SPECTRA
   RT  RESONANCE ABSORPTION

ABSORPTIVE PROPERTIES
   Use  ABSORPTION

ABSTRACTS
   BT  DOCUMENTS
   RT  TECHNICAL WRITING

ABYSSAL ZONES
   BT  BENTHONIC ZONES
   RT  BOTTOM WATERS
   RT  DEEP OCEANS

ACARICIDES
   Use  PESTICIDES

ACCELERATED TESTING
   UF  RAPID TESTING
   BT  TEST METHODS

ACCELERATION
   UF  G-FORCES
   BT  VELOCITY
   NT  ANGULAR ACCELERATION
   NT  DECELERATION
   NT  HIGH ACCELERATION
   NT  IMPACT ACCELERATION
   RT  ACCELERATION TOLERANCE

ACCELERATION INTEGRATORS
   Use  ACCELEROMETERS

ACCELERATION TOLERANCE
   BT  TOLERANCES(PHYSIOLOGY)
   RT  ACCELERATION
   RT  BLACKOUT(PHYSIOLOGY)
   RT  HIGH ACCELERATION

ACCELEROMETERS
   UF  ACCELERATION INTEGRATORS
   BT  MEASURING INSTRUMENTS
   RT  GRAVIMETERS

ACCEPTABILITY
   RT  ACCEPTANCE TESTS
   RT  COMPATIBILITY
   RT  FIGURE OF MERIT
   RT  INSPECTION
   RT  QUALITY ASSURANCE
   RT  REJECTION
   RT  STANDARDS
   RT  TOLERANCES(MECHANICS)
   RT  VALIDATION

ACCEPTANCE TESTS
   BT  TEST METHODS
   RT  ACCEPTABILITY

ACCESS
   NT  MULTIPLE ACCESS

ACCESS TIME
   BT  TIME INTERVALS
   RT  TIME SHARING

ACCIDENT INVESTIGATIONS
   RT  ACCIDENTS
   RT  PROBLEM SOLVING

ACCIDENTS
   NT  AVIATION ACCIDENTS
   NT  BOAT AND SHIP ACCIDENTS
   NT  CRASHES
   NT  DERAILMENT
   NT  DROWNING
   NT  MOTOR VEHICLE ACCIDENTS
   NT  REACTOR ACCIDENTS
   RT  ACCIDENT INVESTIGATIONS
   RT  CASUALTIES
   RT  COLLISIONS
   RT  EMERGENCIES
   RT  EXPLOSIONS
   RT  WOUNDS AND INJURIES

ACCLIMATIZATION
   BT  ADAPTATION(PHYSIOLOGY)
   NT  ALTITUDE ACCLIMATIZATION
   NT  HEAT ACCLIMATIZATION
   RT  RESPONSE(BIOLOGY)
   RT  TOLERANCES(PHYSIOLOGY)

ACCOMMODATION(PSYCHOLOGY)
   Use  ADJUSTMENT(PSYCHOLOGY)

ACCOUNTABILITY
   BT  PERSONNEL MANAGEMENT

ACCOUNTING
   BT  BUSINESS ADMINISTRATION
   BT  FINANCE
   NT  AUDITING
   RT  INVENTORY

ACCUMULATION
   RT  COLLECTION
   RT  GROWTH(GENERAL)
   RT  NUCLEATION
   RT  STOCKPILES

ACCUMULATORS
   UF  COLLECTORS
   NT  HYDRAULIC ACCUMULATORS

ACCURACY
   RT  CONFORMITY
   RT  CONSISTENCY
   RT  ERRORS
   RT  MEASUREMENT
   RT  PRECISION
   RT  RELIABILITY
   RT  REPRODUCIBILITY
   RT  TOLERANCES(MECHANICS)
   RT  VERIFICATION

ACETAL PLASTICS
   Use  ACETAL RESINS

ACETAL RESINS
SN: PLASTIC MATERIALS FROM CONTROLLED POLYMERIZATION OF FORMALDEHYDE.
   UF  ACETAL PLASTICS
   BT  POLYMERS
   BT  THERMOPLASTIC RESINS
   NT  DELRIN
   RT  FURAN RESINS

ACETALDEHYDE
   UF  ETHANAL
   BT  ALDEHYDES

ACETALS
   BT  ORGANIC SOLVENTS

ACETAMIDES
   BT  AMIDES
   NT  ACETAZOLAMIDE

ACETATES
   NT  CELLULOSE ACETATES
   NT  ETHYLENEDINITRILO TETRAACETATES
   NT  TRIACETIN

ACETAZOLAMIDE
   BT  ACETAMIDES
   BT  SULFUR HETEROCYCLIC COMPOUNDS

ACETIC ACID
   BT  FATTY ACIDS
   NT  IMINO DIACETIC ACID
   NT  OXALACETIC ACID
   NT  PERACETIC ACID
   NT  PHENOXYACETIC ACIDS

ACETIC ANHYDRIDE
   BT  ANHYDRIDES

ACETOBACTER
   Use  PSEUDOMONADACEAE

ACETONES
   BT  KETONES

ACETONITRILE
   BT  NITRILES

ACETOPHENETIDIN
   Use  ANALGESICS

ACETOPHENONES
   BT  KETONES

ACETYL CHLORIDE
   BT  CHLORIDES

ACETYLATION
   BT  ACYLATION

ACETYLCHOLINE
   BT  CHOLINES

ACETYLCHOLINESTERASE
   BT  CHOLINESTERASE

ACETYLENE
   BT  ACETYLENES

ACETYLENES
   BT  ALKYNES
   NT  ACETYLENE

ACHATINA
   Use  GASTROPODA

ACHIEVEMENT TESTS
   BT  PERFORMANCE TESTS
   RT  LEARNING

ACHROMATIC
SN: 01-JUL-2000 - TRANSMITTING LIGHT WITHOUT REFRACTION.
   BT  OPTICAL PROPERTIES
   RT  REFRACTION

ACHROMOBACTERIACEAE
   Use  EUBACTERIALES

ACHROMYCIN
   Use  TETRACYCLINES

ACID BASE EQUILIBRIUM
   BT  CHEMICAL EQUILIBRIUM

ACID CITRATE DEXTROSE
   BT  CITRATES
   BT  GLUCOSE

ACID DEPOSITION
SN: 01-DEC-1984 - ACIDIC POLLUTANT COMPOUNDS OF SULFUR ANDNITROGEN RELEASED INTO THE ATMOSPHERE BY INTERACTION WITH SUNLIGHT.
   UF  ACID RAIN
   BT  RAIN

ACID PHOSPHATASE
   BT  PHOSPHATASES

ACID RAIN
   Use  ACID DEPOSITION

ACIDEMIA
   Use  ACIDOSIS

ACIDOSIS
   UF  ACIDEMIA
   BT  METABOLIC DISEASES
   RT  BLOOD CHEMISTRY

ACIDS
   BT  CHEMICALS
   NT  ARSONIC ACID
   NT  BENZENEBORONIC ACID
   NT  CARBAMIC ACID
   NT  INORGANIC ACIDS
   NT  ISOCYANIC ACID
   NT  LYSERGIC ACIDS
   NT  NICOTINIC ACID
   NT  NUCLEIC ACIDS
   NT  ORGANIC ACIDS
   NT  TANNIC ACID
   NT  URIC ACID
   NT  VANILLIC ACIDS

ACNE
   BT  DERMATITIS
   RT  ABSCESSES

ACONITINE
   Use  ALKALOIDS

ACOUSTIC ABSORPTION
   BT  ACOUSTICS
   NT  ACOUSTIC INSULATION
   RT  ACOUSTIC ATTENUATION
   RT  NOISE REDUCTION

ACOUSTIC ARRAYS
   BT  ACOUSTIC EQUIPMENT
   BT  ARRAYS
   NT  SONAR ARRAYS
   RT  ANTENNA ARRAYS

ACOUSTIC ATTENUATION
   BT  ACOUSTICS
   BT  ATTENUATION
   RT  ACOUSTIC ABSORPTION

ACOUSTIC BEAMS
   BT  BEAMS(RADIATION)

ACOUSTIC CHANNELS
   BT  ACOUSTICS

ACOUSTIC COATINGS
   BT  ACOUSTIC MATERIALS
   BT  COATINGS

ACOUSTIC COMMUNICATIONS
   BT  COMMUNICATION AND RADIO SYSTEMS

ACOUSTIC COMPATIBILITY
   BT  COMPATIBILITY

ACOUSTIC COUNTERMEASURES
   BT  COUNTERMEASURES
   NT  ACOUSTIC DECOYS
   NT  ACOUSTIC JAMMING

ACOUSTIC DATA
   BT  ACOUSTICS

ACOUSTIC DECOYS
   BT  ACOUSTIC COUNTERMEASURES
   BT  DECOYS
   RT  ACOUSTIC TORPEDOES

ACOUSTIC DELAY LINES
   BT  ACOUSTIC EQUIPMENT
   BT  DELAY LINES

ACOUSTIC DETECTION
   BT  DETECTION
   NT  SEISMIC DETECTION
   RT  SONAR

ACOUSTIC DETECTORS
   BT  ACOUSTIC EQUIPMENT
   BT  DETECTORS
   NT  HYDROPHONES
   NT  SONOBUOYS
   RT  SONAR EQUIPMENT

ACOUSTIC EMISSIONS
   BT  EMISSION

ACOUSTIC EQUIPMENT
   UF  SOUND EQUIPMENT
   NT  ACOUSTIC ARRAYS
   NT  ACOUSTIC DELAY LINES
   NT  ACOUSTIC DETECTORS
   NT  ACOUSTIC FILTERS
   NT  ACOUSTIC LENSES
   NT  ACOUSTIC MICROSCOPES
   NT  ACOUSTIC RESONATORS
   NT  ACOUSTIC WINDOWS
   NT  ANECHOIC CHAMBERS
   NT  MEGAPHONES
   NT  SONAR EQUIPMENT
   NT  SOUND GENERATORS
   NT  UNDERWATER SOUND EQUIPMENT
   RT  ACOUSTICS

ACOUSTIC FIELDS
   BT  ACOUSTICS
   RT  PHONONS

ACOUSTIC FILTERS
   BT  ACOUSTIC EQUIPMENT
   BT  FILTERS
   NT  OPTOACOUSTIC FILTERS
   RT  MUFFLERS

ACOUSTIC HOLOGRAPHY
SN: 011-JUN-1989 - HOLOGRAPHY IN WHICH SINGLE-FREQUENCY SOUND WAVES ARE USED TO PRODUCE A 3-D IMAGEOF AN OBJECT IN WATER, FLESH, OR ANY OTHER MEDIA CAPABLE OF TRANSMITTING AND REFRACTING SOUND WAVES.
   BT  HOLOGRAPHY
   RT  ACOUSTIC IMAGES

ACOUSTIC HOMING
   BT  HOMING

ACOUSTIC HORNS
   UF  HORNS (ACOUSTIC)
   BT  SOUND GENERATORS
   RT  MEGAPHONES

ACOUSTIC IMAGES
SN: 01-DEC-1984 - THE GEOMETRIC SPACE FIGURES THAT ARE MADE UP OF THE ACOUSTIC FOCI OF AN ACOUSTICLENS MIRROR, OR OTHER ACOUSTICAL OPTIC SYSTEM, AND ARE THE ACOUSTIC COUNTERPARTS OF EXTENDED SOURCES OF SOUND.
   BT  IMAGES
   NT  SONAR IMAGES
   NT  SONOGRAMS
   RT  ACOUSTIC HOLOGRAPHY

ACOUSTIC IMPEDANCE
   UF  IMPEDANCE (ACOUSTICS)
   BT  ACOUSTIC PROPERTIES
   BT  IMPEDANCE

ACOUSTIC INSULATION
   UF  SOUND INSULATION
   UF  SOUNDPROOFING
   BT  ACOUSTIC ABSORPTION
   BT  ACOUSTICS
   BT  INSULATION
   RT  NOISE REDUCTION

ACOUSTIC INTELLIGENCE
   BT  INTELLIGENCE

ACOUSTIC JAMMING
SN: 01-OCT-1991 - THE DELIBERATE RADIATION OR RERADIATION OF MECHANICAL OR ELECTROACOUSTIC SIGNALSWITH THE OBJECTIVE OF OBLITERATING OR OBSCURING SIGNALS WHICH THE ENEMY IS ATTEMPTING TO RECEIVE AND OF DETERRING ENEMYWEAPON SYSTEMS.
   BT  ACOUSTIC COUNTERMEASURES
   BT  JAMMING

ACOUSTIC LENSES
   BT  ACOUSTIC EQUIPMENT
   BT  LENSES

ACOUSTIC MATERIALS
   BT  MATERIALS
   NT  ACOUSTIC COATINGS
   NT  ELECTROACOUSTIC MATERIALS

ACOUSTIC MEASUREMENT
   BT  ACOUSTICS
   BT  MEASUREMENT
   RT  AUDIOMETRY
   RT  SOUND PRESSURE

ACOUSTIC MICROSCOPES
SN: 01-NOV-1980 -INSTRUMENTS WHICH EMPLOY ACOUSTIC RADIATION AT MICROWAVE FREQUENCIES TO ALLOW VISUALIZATION OF THE MICROSCOPIC DETAIL EXHIBITED IN ELASTIC PROPERTIES OF AN OBJECT.
   BT  ACOUSTIC EQUIPMENT
   BT  MICROSCOPES

ACOUSTIC MINES
   BT  INFLUENCE MINES

ACOUSTIC MINESWEEPING
   BT  MINESWEEPING

ACOUSTIC NAVIGATION
   BT  NAVIGATION

ACOUSTIC PROPERTIES
   BT  PHYSICAL PROPERTIES
   NT  ACOUSTIC IMPEDANCE
   NT  ACOUSTIC REFLECTION
   NT  ACOUSTIC REFRACTION
   NT  ACOUSTIC RESONANCE
   NT  ACOUSTIC SCATTERING
   NT  ACOUSTIC SIGNATURES
   NT  ACOUSTIC VELOCITY
   NT  SOUND PITCH
   NT  SOUND TRANSMISSION
   NT  ULTRASONIC PROPERTIES

ACOUSTIC RANGES
SN: TEST FACILITIES FOR SOUND MEASUREMENTS, ESPECIALLY OF NOISE GENERATED BY SHIPS AND SUBMARINES.
   BT  RANGES(FACILITIES)

ACOUSTIC RECORDING SYSTEMS
   BT  ELECTRONIC RECORDING SYSTEMS
   NT  PHONOGRAPHS
   RT  SOUND REPRODUCTION SYSTEMS

ACOUSTIC REFLECTION
   BT  ACOUSTIC PROPERTIES
   BT  REFLECTION
   NT  BOTTOM BOUNCE
   NT  DEEP SCATTERING LAYERS
   RT  ECHOES

ACOUSTIC REFRACTION
   BT  ACOUSTIC PROPERTIES
   BT  REFRACTION

ACOUSTIC RESONANCE
   BT  ACOUSTIC PROPERTIES
   BT  RESONANCE

ACOUSTIC RESONATORS
   BT  ACOUSTIC EQUIPMENT
   BT  RESONATORS

ACOUSTIC SCATTERING
   BT  ACOUSTIC PROPERTIES
   BT  SCATTERING
   NT  REVERBERATION

ACOUSTIC SIGNALS
   UF  SOUND SIGNALS
   BT  SIGNALS
   NT  AUDITORY SIGNALS
   NT  SPEECH ANALYSIS
   NT  UNDERWATER SOUND SIGNALS
   RT  SOUND WAVES

ACOUSTIC SIGNATURES
   BT  ACOUSTIC PROPERTIES

ACOUSTIC SURFACE WAVE DEVICES
   Use  SURFACE ACOUSTIC WAVE DEVICES

ACOUSTIC SURVEILLANCE
   BT  SURVEILLANCE
   RT  ANTISUBMARINE WARFARE
   RT  UNDERSEA SURVEILLANCE

ACOUSTIC TOMOGRAPHY
SN: 01-JUL-2000
   BT  ACOUSTICS
   BT  TOMOGRAPHY

ACOUSTIC TORPEDOES
   UF  LISTENING TORPEDOES
   BT  TORPEDOES
   RT  ACOUSTIC DECOYS

ACOUSTIC TRACKING
   BT  TRACKING

ACOUSTIC VELOCITY
   BT  ACOUSTIC PROPERTIES
   BT  VELOCITY
   RT  MACH NUMBER
   RT  SOUND TRANSMISSION

ACOUSTIC WARFARE
   BT  WARFARE

ACOUSTIC WAVES
   BT  ACOUSTICS
   BT  ELASTIC WAVES
   NT  INFRASONIC RADIATION
   NT  SOUND WAVES
   NT  SURFACE ACOUSTIC WAVES
   NT  ULTRASONIC RADIATION
   RT  SHOCK WAVES
   RT  UNDERWATER ACOUSTICS

ACOUSTIC WINDOWS
   BT  ACOUSTIC EQUIPMENT
   BT  WINDOWS

ACOUSTICS
SN: THEORETICAL STUDIES OF THE PRODUCTION, BEHAVIOR, AND RECEPTION OF ELASTIC STRESSWAVES IN ALL TYPES OF MEDIA. FOR THEORETICAL STUDIES OF WAVES IN THE AUDIBLE FREQUENCY, SEE SOUND.
   BT  PHYSICS
   NT  ACOUSTIC ABSORPTION
   NT  ACOUSTIC ATTENUATION
   NT  ACOUSTIC CHANNELS
   NT  ACOUSTIC DATA
   NT  ACOUSTIC FIELDS
   NT  ACOUSTIC INSULATION
   NT  ACOUSTIC MEASUREMENT
   NT  ACOUSTIC TOMOGRAPHY
   NT  ACOUSTIC WAVES
   NT  ACOUSTOOPTICS
   NT  BIOACOUSTICS
   NT  ELECTROACOUSTICS
   NT  GEOACOUSTICS
   NT  MAGNETOACOUSTICS
   NT  SOUND
   NT  THERMOACOUSTICS
   RT  ACOUSTIC EQUIPMENT

ACOUSTOOPTICS
   BT  ACOUSTICS
   BT  OPTICS
   RT  ELECTROOPTICS
   RT  MAGNETOOPTICS

acquired brain injury
   Use  TRAUMATIC BRAIN INJURIES

ACQUIRED IMMUNE DEFICIENCY SYNDROME
SN: 01-JUN-1989 - A CONDITION OF ACQUIRED IMMUNOLOGICAL DEFICIENCY ASSOCIATED WITH INFECTION OF THE CELLS OF THE IMMUNE SYSTEM WITH THE RETROVIRUS HTLV-III AND SIMILAR VIRUSES; USUALLY RECOGNIZED BY THE PRESENCE OF LIFE THREATENING INFECTIONS.
   UF  AIDS
   BT  VIRUS DISEASES
   RT  AZIDOTHYMIDINE
   RT  HUMAN IMMUNODEFICIENCY VIRUSES

ACQUIRED IMMUNITY
   Use  IMMUNITY

ACQUISITION
   NT  DATA ACQUISITION
   NT  PROCUREMENT
   NT  TARGET ACQUISITION

ACQUISITION RADAR
   BT  SEARCH RADAR
   NT  PERIMETER ACQUISITION RADAR

ACRIDINES
   BT  HETEROCYCLIC COMPOUNDS

ACRILAN
   Use  ACRYLONITRILE POLYMERS

ACROLEINS
   BT  ALDEHYDES

ACRONYMS
   Use  ABBREVIATIONS

ACRYLATES
   BT  ESTERS
   NT  METHACRYLATES

ACRYLIC ACID
   BT  ALIPHATIC ACIDS
   NT  CINNAMIC ACID

ACRYLIC RESINS
   UF  PERSPEX
   BT  ACRYLONITRILE POLYMERS
   BT  THERMOPLASTIC RESINS
   NT  POLYACRYLAMIDES
   NT  POLYACRYLATES
   RT  POLYMETHYL METHACRYLATE

ACRYLONITRILE POLYMERS
   UF  ACRILAN
   BT  POLYMERS
   NT  ACRYLIC RESINS

ACRYLONITRILE RUBBER
   Use  NITRILE RUBBER

ACTH
   Use  ADRENOCORTICOTROPIC HORMONE

ACTIN
   Use  MUSCLE PROTEINS

ACTINIDE SERIES
SN: ELEMENTS HAVING ATOMIC NUMBERS 89 THROUGH 103. FOR THE SERIES OF NUCLIDES RESULTING FROM THE DECAY OF U-235, SEE RADIOACTIVE SERIES.
   BT  METALS
   NT  ACTINIUM
   NT  AMERICIUM
   NT  BERKELIUM
   NT  CALIFORNIUM
   NT  CURIUM
   NT  EINSTEINIUM
   NT  FERMIUM
   NT  LAWRENCIUM
   NT  MENDELEVIUM
   NT  NEPTUNIUM
   NT  NOBELIUM
   NT  PLUTONIUM
   NT  PROTACTINIUM
   NT  THORIUM
   NT  URANIUM
   RT  ACTINIDE SERIES COMPOUNDS
   RT  RADIOACTIVE MATERIALS
   RT  TRANSURANIUM ELEMENTS

ACTINIDE SERIES COMPOUNDS
   BT  HEAVY ELEMENT COMPOUNDS
   NT  ACTINIUM COMPOUNDS
   NT  PROTACTINIUM COMPOUNDS
   NT  THORIUM COMPOUNDS
   NT  TRANSURANIUM COMPOUNDS
   NT  URANIUM COMPOUNDS
   RT  ACTINIDE SERIES
   RT  RADIOACTIVE MATERIALS

ACTINIUM
   BT  ACTINIDE SERIES
   RT  ACTINIUM COMPOUNDS

ACTINIUM COMPOUNDS
   BT  ACTINIDE SERIES COMPOUNDS
   RT  ACTINIUM

ACTINIUM DECAY SERIES
   Use  RADIOACTIVE SERIES

ACTINOBACILLUS
   UF  MALLEOMYCES
   BT  BRUCELLACEAE
   NT  ACTINOBACILLUS MALLEI

ACTINOBACILLUS MALLEI
   BT  ACTINOBACILLUS

ACTINOMYCES
   BT  ACTINOMYCETACEAE

ACTINOMYCETACEAE
   BT  ACTINOMYCETALES
   NT  ACTINOMYCES
   NT  NOCARDIA

ACTINOMYCETALES
   UF  ACTINOMYCETES
   BT  BACTERIA
   NT  ACTINOMYCETACEAE
   NT  MYCOBACTERIACEAE
   NT  STREPTOMYCETACEAE

ACTINOMYCETES
   Use  ACTINOMYCETALES

ACTINOPODA
   BT  PROTOZOA
   NT  RADIOLARIA

ACTIVATED CARBON
   UF  ACTIVATED CHARCOAL
   BT  CARBON
   NT  CHARCOAL
   RT  ADSORBENTS

ACTIVATED CHARCOAL
   Use  ACTIVATED CARBON

ACTIVATED SINTERING
   BT  SINTERING

ACTIVATED SLUDGE PROCESS
   BT  SLUDGE
   BT  WASTE TREATMENT
   RT  SEWAGE DISPOSAL
   RT  WATER TREATMENT

ACTIVATION
   UF  ENERGIZING
   NT  HEAT OF ACTIVATION
   NT  NEUTRON ACTIVATION
   RT  CATALYSIS
   RT  DEACTIVATION
   RT  EXCITATION
   RT  STARTING

ACTIVATION ENERGY
   BT  ENERGY

ACTIVE DEFENSE
SN: 01-DEC-1984 - THE EMPLOYMENT OF WEAPONS SYSTEMS TO DETER, DEFLECT, OR OTHERWISE DEFEAT ENEMY OFFENSIVE FORCES. THE TERM COMMONLY CONNOTES DEFENSIVE FORCES, SUCH AS INTERCEPTOR AIRCRAFT AND ANTIBALLISTIC MISSILES. THE EMPLOYMENT OF LIMITED OFFENSIVE ACTION AND COUNTERATTACKS TO DENY CONTESTEDAREA OR POSITION TO THE ENEMY.
   NT  COUNTERATTACK
   RT  ATTACK

ACTIVE DUTY
   BT  MILITARY OPERATIONS

ACTIVE IMMUNITY
   BT  IMMUNITY

ACTIVE SITES(PHYSIOLOGY)
   Use  RECEPTOR SITES(PHYSIOLOGY)

ACTOMYOSIN
   Use  MUSCLE PROTEINS

ACTUATION
SN: Retired October 2011.
   BT  retired descriptors

ACTUATION COUNTERS
   Use  ROUNDS COUNTERS

ACTUATORS
SN: FOR ACTUATORS WITH FEEDBACK, SEE SERVOMECHANISMS. FOR INDICATORS, SEE SYNCHROS.
   NT  EXPLOSIVE ACTUATORS
   NT  HYDRAULIC ACTUATORS
   NT  PNEUMATIC ACTUATORS
   RT  CAMS

ACUITY
   NT  AUDITORY ACUITY
   NT  VISUAL ACUITY
   RT  DISCRIMINATION

ACUPUNCTURE
   BT  DIAGNOSIS(MEDICINE)
   BT  THERAPY

ACUTE RESPIRATORY DISEASE VIRUS
   BT  ADENOVIRUSES

ACYLATION
   BT  CHEMICAL REACTIONS
   NT  ACETYLATION

ACYLUREAS
   Use  UREIDES

ADA PROGRAMMING LANGUAGE
SN: A SOPHISTICATED HIGH-LEVEL COMPUTER PROGRAMMING LANGUAGE DESIGNED TO SUPPORT REAL-TIME INPUT/OUTPUT CONCURRENT PROGRAM EXECUTION, ABSTRACT VARIABLES, AND THE PROGRAMMING OF VERY LARGE EMBEDDED COMPUTER SYSTEMS.
   BT  HIGH LEVEL LANGUAGES

ADAMANTANES
   BT  POLYCYCLIC COMPOUNDS

ADAPTATION
   NT  ADAPTATION(PHYSIOLOGY)
   NT  ADJUSTMENT(PSYCHOLOGY)

ADAPTATION(PHYSIOLOGY)
   UF  GENERAL ADAPTATION SYNDROME
   BT  ADAPTATION
   BT  PHYSIOLOGY
   NT  ACCLIMATIZATION
   NT  DARK ADAPTATION
   NT  HOMEOSTASIS

ADAPTERS
   BT  FITTINGS
   RT  ATTACHMENT

ADAPTIVE COMMUNICATIONS
   BT  ADAPTIVE SYSTEMS
   BT  TELECOMMUNICATIONS

ADAPTIVE CONTROL SYSTEMS
SN: CONTROL SYSTEMS THAT CONTINUOUSLY MEASURE AND EVALUATE DYNAMIC PERFORMANCE AND SUPPLY CONTINUOUS READJUSTMENTS ON THE BASIS OF THE EVALUATIONS.
   UF  SELF-ADAPTIVE CONTROL SYSTEMS
   BT  ADAPTIVE SYSTEMS
   BT  CONTROL SYSTEMS
   NT  AUTOMATION
   NT  CONTROLLED CONFIGURED VEHICLES
   RT  SMART TECHNOLOGY

ADAPTIVE FILTERS
   BT  ADAPTIVE SYSTEMS
   BT  FILTERS

ADAPTIVE OPTICS
SN: 01-SEP-1990 - THE THEORY AND DESIGN OF OPTICAL SYSTEMSTHAT MEASURE AND CORRECT WAVEFRONT ABERRATIONS IN REAL TIME, THAT IS, SIMULTANEOUS WITH THE OPERATION OF THE SYSTEM.
   BT  ADAPTIVE SYSTEMS
   BT  OPTICS
   NT  PHASE CONJUGATION

ADAPTIVE SYSTEMS
   NT  ADAPTIVE COMMUNICATIONS
   NT  ADAPTIVE CONTROL SYSTEMS
   NT  ADAPTIVE FILTERS
   NT  ADAPTIVE OPTICS
   NT  LEARNING MACHINES
   RT  SELF ORGANIZING SYSTEMS

ADAPTIVE TRAINING
   BT  TRAINING

ADATOMS
   BT  ATOMS

ADDITION
   BT  ARITHMETIC
   BT  NUMBER THEORY

ADDITION REACTIONS
   BT  CHEMICAL REACTIONS

ADDITIVES
   NT  ANTIFREEZES
   NT  ANTIOXIDANTS
   NT  FOAMING INHIBITORS
   NT  FOOD ADDITIVES
   NT  FUEL ADDITIVES
   NT  LUBRICANT ADDITIVES
   NT  PAINT THINNERS
   NT  PLASTICIZERS
   RT  FILLERS
   RT  THICKENERS(MATERIALS)

ADDITRONS
   Use  RADIAL BEAM TUBES

ADEN GULF
   BT  GULFS

ADENINE
   BT  PURINES
   NT  ADENOSINE

ADENOSINE
   BT  ADENINE

ADENOSINE PHOSPHATES
   UF  ADENYLIC ACID
   UF  ATP
   BT  NUCLEOTIDES
   BT  PHOSPHATES

ADENOVIRUSES
   UF  CATARRHAL RHINITIS
   UF  COLD VIRUSES
   UF  COLDS
   UF  CORYZA
   BT  VIRUSES
   NT  ACUTE RESPIRATORY DISEASE VIRUS
   NT  ONCOGENIC VIRUSES

ADENYL CYCLASE
   BT  ENZYMES

ADENYLIC ACID
   Use  ADENOSINE PHOSPHATES

ADHERENCE
   Use  ADHESION

ADHESION
   UF  ADHERENCE
   BT  SURFACE PROPERTIES
   RT  ADHESIVES
   RT  AGGLUTINATION
   RT  BONDING
   RT  COHESION
   RT  TRACTION

ADHESIVE BONDING
   BT  BONDING

ADHESIVE TAPES
   BT  TAPES

ADHESIVES
   UF  CEMENTS(ADHESIVES)
   UF  GLUES
   NT  PASTES
   NT  RUBBER ADHESIVES
   RT  ADHESION
   RT  BINDERS

ADIABATIC CONDITIONS
   RT  ISENTROPE

ADIABATIC GAS FLOW
   BT  GAS FLOW

ADIPOSE TISSUE
   BT  CONNECTIVE TISSUE

ADJUSTABLE PITCH PROPELLERS
   Use  VARIABLE PITCH PROPELLERS

ADJUSTMENT(PSYCHOLOGY)
   UF  ACCOMMODATION(PSYCHOLOGY)
   BT  ADAPTATION
   BT  BEHAVIOR
   RT  ATTITUDES(PSYCHOLOGY)

ADMINISTRATION
   Use  MANAGEMENT

ADMINISTRATIVE ENGINEERING
   Use  MANAGEMENT ENGINEERING

ADMINISTRATIVE LAW
SN: 01-APR-1998
   BT  LEGISLATION

ADMINISTRATIVE PERSONNEL
   BT  PERSONNEL
   RT  PERSONNEL MANAGEMENT

ADMITTANCE
   BT  IMPEDANCE
   NT  ELECTRICAL CONDUCTIVITY

ADOLESCENTS
   BT  YOUTH

ADRENAL CORTEX
   BT  ADRENAL GLANDS
   RT  ADRENAL CORTEX HORMONES

ADRENAL CORTEX HORMONES
   BT  HORMONES
   NT  ALDOSTERONE
   NT  CORTICOSTEROID AGENTS
   RT  ADRENAL CORTEX

ADRENAL GLANDS
   BT  ENDOCRINE GLANDS
   NT  ADRENAL CORTEX
   RT  EPINEPHRINE

ADRENAL MEDULLA HORMONES
   BT  HORMONES

ADRENERGIC BLOCKING AGENTS
   Use  SYMPATHOLYTIC AGENTS

ADRENERGIC NERVES
   Use  AUTONOMIC NERVOUS SYSTEM

ADRENOCORTICOTROPIC HORMONE
   UF  ACTH
   UF  CORTICOTROPIN
   BT  PITUITARY HORMONES

ADRENOLYTIC DRUGS
   Use  SYMPATHOLYTIC AGENTS

ADRIATIC SEA
   BT  MEDITERRANEAN SEA

ADSORBATES
SN: 01-MAY-1983 - SOLIDS, LIQUIDS OR GASES WHICH ARE ADSORBED AS MOLECULES, ATOMS, OR IONS BY SUCHSUBSTANCES AS CHARCOAL, SILICA, METALS,WATER, AND MERCURY.
   RT  ADSORBENTS

ADSORBENTS
   NT  GETTERS
   RT  ACTIVATED CARBON
   RT  ADSORBATES

ADSORPTION
   UF  ADSORPTIVE PROPERTIES
   BT  SORPTION
   NT  CHEMISORPTION
   NT  DENSITY FUNCTIONAL THEORY
   NT  GETTERING

ADSORPTION INDICATORS
   Use  CHEMICAL INDICATORS

ADSORPTIVE PROPERTIES
   Use  ADSORPTION

ADULTS
   BT  HUMANS
   NT  ELDERLY

ADVANCED RANGE INSTRUMENTATION SHIPS
   BT  SHIPS

ADVANCED WEAPONS
SN: WEAPON CONCEPTS UTILIZING DESTRUCTIVE FORCES NOT PREVIOUSLY EMPLOYED IN WARFARE.
   BT  WEAPONS
   NT  FIRE AND FORGET WEAPONS

ADVECTION
   NT  BLOWDOWN
   RT  CONVECTION

ADVERSE CONDITIONS
   NT  CATASTROPHIC CONDITIONS
   RT  ENVIRONMENTAL TESTS

ADVISORY ACTIVITIES
   BT  MANAGEMENT

AEDES
   BT  CULICIDAE

AEGEAN SEA
   BT  MEDITERRANEAN SEA

AEOLIPILE ROTORS
   Use  JET HELICOPTER ROTORS

AERATION
   RT  AERATORS
   RT  AEROSOLS
   RT  DEAERATION
   RT  ENTRAINMENT

AERATORS
SN: 01-DEC-1984 - EQUIPMENT USED FOR AERATION (SUPPLYING OR INFUSION OF AIR).
   RT  AERATION

AERIAL CAMERAS
   BT  CAMERAS
   NT  CONTINUOUS STRIP CAMERAS
   NT  TOPOGRAPHIC CAMERAS
   RT  AERIAL PHOTOGRAPHY

AERIAL COMBAT
   Use  AERIAL WARFARE

AERIAL DELIVERY
   BT  AIR TRANSPORTATION
   BT  DELIVERY
   NT  AIR DROP OPERATIONS
   NT  FREE DROPPING

AERIAL GUNNERS
   BT  AVIATION PERSONNEL
   BT  GUNNERS
   RT  AERIAL GUNNERY

AERIAL GUNNERY
   BT  GUNNERY
   RT  AERIAL GUNNERS

AERIAL IMAGERY
   Use  AERIAL PHOTOGRAPHY

AERIAL MINE WARFARE
   BT  MINE WARFARE
   RT  AERIAL MINES

AERIAL MINES
   BT  MINES(ORDNANCE)
   RT  AERIAL MINE WARFARE

AERIAL PHOTOGRAPHS
   BT  PHOTOGRAPHS
   RT  STEREOPHOTOGRAMMETRY

AERIAL PHOTOGRAPHY
   UF  AERIAL IMAGERY
   BT  PHOTOGRAPHY
   NT  ORTHOPHOTOGRAPHY
   NT  PHOTOGEOLOGY
   RT  AERIAL CAMERAS
   RT  AERIAL RECONNAISSANCE
   RT  AERIAL SURVEYS
   RT  PHOTOGRAPHIC INTELLIGENCE

AERIAL PICKUP SYSTEMS
   RT  AIR DROP OPERATIONS

AERIAL PROPELLERS
SN: 01-MAY-1981
   UF  PUSHER PROPELLERS
   BT  PROPELLERS

AERIAL RECONNAISSANCE
   BT  RECONNAISSANCE
   RT  AERIAL PHOTOGRAPHY
   RT  RECONNAISSANCE AIRCRAFT
   RT  SURVEILLANCE DRONES

AERIAL RUDDERS
   BT  RUDDERS
   RT  FINS
   RT  TAIL ASSEMBLIES

AERIAL SURVEYS
SN: 01-0CT-1995
   BT  SURVEYS
   RT  AERIAL PHOTOGRAPHY

AERIAL TARGETS
   BT  TARGETS
   RT  TARGET DRONES

AERIAL TORPEDOES
   Use  AIRCRAFT TORPEDOES

AERIAL WARFARE
   UF  AERIAL COMBAT
   BT  WARFARE
   NT  AIR POWER
   NT  AIR STRIKES

AEROACOUSTICS
   Use  AERODYNAMIC NOISE

AEROBACTER
   BT  ENTEROBACTERIACEAE
   NT  AEROBACTER AEROGENES

AEROBACTER AEROGENES
   BT  AEROBACTER
   BT  COLIFORM BACTERIA

AEROBALLISTICS
   BT  BALLISTICS
   RT  AERODYNAMIC DRAG

AEROBIC BACTERIA
   BT  BACTERIA

AEROBIOLOGY
   BT  BIOLOGY
   RT  BIOLOGICAL AEROSOLS

AERODYNAMIC CHARACTERISTICS
   BT  FLUID DYNAMICS
   NT  AERODYNAMIC FORCES
   NT  AERODYNAMIC STABILITY
   NT  AEROELASTICITY
   NT  HYPERSONIC CHARACTERISTICS
   NT  SUBSONIC CHARACTERISTICS
   NT  SUPERSONIC CHARACTERISTICS
   NT  TRANSONIC CHARACTERISTICS

AERODYNAMIC CONFIGURATIONS
SN: THE RELATIVE DISPOSITIONS OF PARTS, THE FIGURE, THE CONTOUR, OR THE ARRANGEMENT OF PARTS WITHIN STRUCTURES WHOSE BEHAVIOR IS GOVERNED BY AERODYNAMIC LAWS.
   BT  CONFIGURATIONS
   NT  CANARD CONFIGURATIONS
   NT  WING BODY CONFIGURATIONS
   RT  AIRCRAFT DESIGN
   RT  AIRCRAFT PROTUBERANCES
   RT  AIRFOILS
   RT  AIRFRAMES
   RT  FAIRINGS
   RT  FLAT PLATE MODELS
   RT  FLIGHT ENVELOPE
   RT  NACELLES

AERODYNAMIC CONTROL SURFACES
   BT  AIRFOILS
   BT  CONTROL SURFACES
   NT  BOMB FINS
   NT  FLAPS(CONTROL SURFACES)
   NT  FOLDING FINS(ROCKETS)
   NT  HORIZONTAL STABILIZERS
   NT  STRAKES
   NT  TRAILING CONTROL SURFACES
   NT  VERTICAL STABILIZERS

AERODYNAMIC DRAG
   BT  AERODYNAMIC FORCES
   BT  DRAG
   NT  SUPERSONIC DRAG
   RT  AEROBALLISTICS
   RT  BASE PRESSURE

AERODYNAMIC FORCES
   UF  GLAUERT COEFFICIENT
   BT  AERODYNAMIC CHARACTERISTICS
   NT  AERODYNAMIC DRAG
   NT  AERODYNAMIC LOADING
   NT  LIFT

aerodynamic heating
SN: the heating of a solid body produced by the passage of fluid (such as air) over a body such as a meteor, missile, or airplane. It is a form of forced convection in that the flow field is created by forces beyond those associated with the thermal processes. The heat transfer essentially occurs at the vehicle surface where aerodynamic viscous forces ensures that the flow is at zero speed relative to the body for a very thin layer of molecules at the surface.
   BT  aerothermodynamics
   RT  ABLATION
   RT  ATMOSPHERE ENTRY

AERODYNAMIC LIFT
SN: 01-DEC-1984 - THE COMPONENT OF THE TOTAL DYNAMIC FORCEACTING ON A BODY PERPENDICULAR TO THE UNDISTURBED AIR FLOW RELATIVE TO THE BODY.
   BT  LIFT
   NT  STALLING

AERODYNAMIC LOADING
   BT  AERODYNAMIC FORCES
   BT  DYNAMIC LOADS
   NT  BUFFETING
   NT  GUST LOADS

AERODYNAMIC NOISE
   UF  AEROACOUSTICS
   BT  NOISE(SOUND)
   NT  SONIC BOOM
   RT  AIRCRAFT NOISE

AERODYNAMIC SLOTS
SN: NOZZLE-SHAPED OPENINGS IN AERODYNAMIC CONFIGURATIONS TO IMPROVE FLOW CONDITIONS AT HIGH ANGLES OF ATTACK.
   BT  SLOTS
   NT  SUCTION SLOTS
   NT  WING SLOTS

AERODYNAMIC STABILITY
   BT  AERODYNAMIC CHARACTERISTICS
   NT  TRIM(AERODYNAMICS)
   RT  VARIABLE STABILITY AIRCRAFT

AERODYNAMICS
   BT  FLUID DYNAMICS
   NT  aerothermodynamics
   NT  UNSTEADY AERODYNAMICS

AEROELASTICITY
   BT  AERODYNAMIC CHARACTERISTICS
   BT  ELASTIC PROPERTIES
   NT  AEROSERVOELASTICITY
   NT  AEROTHERMOELASTICITY
   NT  TWIST(AERODYNAMICS)
   RT  FLUID MECHANICS

AEROEMBOLISM
   Use  GAS EMBOLISM

AEROGELS
SN: 01-APR-1999
   BT  SOL GEL PROCESSES

AEROLOGICAL BALLOONS
   Use  METEOROLOGICAL BALLOONS

aerology
   Use  ATMOSPHERIC SCIENCES

AEROMEDICAL EVACUATION
   BT  AIR TRANSPORTATION
   BT  MEDICAL EVACUATION

AERONAUTICAL BOOMS
   BT  BOOMS(EQUIPMENT)

AERONAUTICAL ENGINEERING
   BT  ENGINEERING
   NT  AIRCRAFT DESIGN
   NT  AIRCRAFT LOFTING
   RT  AERONAUTICS
   RT  AIRCRAFT INDUSTRY
   RT  SPACE TECHNOLOGY

AERONAUTICAL LABORATORIES
   BT  LABORATORIES

AERONAUTICS
   NT  ALL WEATHER AVIATION
   NT  ARMY AVIATION
   NT  CIVIL AVIATION
   NT  MARINE CORPS AVIATION
   NT  NAVAL AVIATION
   RT  AERONAUTICAL ENGINEERING
   RT  ASTRONAUTICS

AERONOMY
SN: Science of the upper region of the atmosphere, where dissociation and ionization are important.
   BT  ATMOSPHERIC PHYSICS
   RT  AIRGLOW
   RT  ATMOSPHERIC TIDES
   RT  IONOSPHERIC CHEMISTRY
   RT  IONOSPHERIC DISTURBANCES
   RT  IONOSPHERIC MODELS
   RT  MESOSPHERE
   RT  THERMOSPHERE

AEROPHYSICS
   Use  ATMOSPHERIC PHYSICS

AEROSERVOELASTICITY
SN: 01-SEP-1990 - THE STUDY OF THE INTERACTION OF AUTOMATIC FLIGHT CONTROLS ON AEROSPACE CRAFT/MISSILES WITH AEROELASTIC RESPONSE AND STABILITY.
   BT  AEROELASTICITY

AEROSOL GENERATORS
SN: DEVICES THAT PRODUCE SUSPENSIONS OF SOLIDS OR LIQUIDS IN GASES. FOR DEVICES THATEJECT LIQUID DROPLETS ONTO SURFACES, SEE SPRAY TANKS.
   BT  GENERATORS
   NT  SMOKE GENERATORS
   RT  AEROSOLS
   RT  ATOMIZATION

AEROSOLS
   BT  COLLOIDS
   NT  BIOLOGICAL AEROSOLS
   NT  MIST
   RT  AERATION
   RT  AEROSOL GENERATORS

AEROSPACE CRAFT
SN: VEHICLES THAT FUNCTION IN BOTH THE SENSIBLE ATMOSPHERE AND THE SPACE ENVIRONMENT.
   UF  AEROSPACE VEHICLES
   BT  aircraft
   BT  SPACECRAFT
   NT  AEROSPACEPLANES
   NT  BOOST GLIDE VEHICLES
   NT  LIFTING BODIES

AEROSPACE ENVIRONMENTS
   BT  ENVIRONMENTS
   NT  SPACE ENVIRONMENTS

AEROSPACE INDUSTRY
SN: 01-DEC-1984 - INDUSTRY CONCERNED WITH THE USE OF VEHICLES IN BOTH THE EARTH'S ATMOSPHERE AND SPACE.
   BT  INDUSTRIES
   NT  AIRCRAFT INDUSTRY

AEROSPACE MEDICINE
   BT  MEDICINE
   BT  SPACE SCIENCES
   RT  ALTITUDE SICKNESS
   RT  AVIATION MEDICINE

AEROSPACE PLANES
   Use  AEROSPACEPLANES

AEROSPACE SYSTEMS
   BT  ASTRONAUTICS

AEROSPACE VEHICLES
   Use  AEROSPACE CRAFT

AEROSPACEPLANES
SN: 01-SEP-1981 - AEROSPACE CRAFT DESIGNED TO TAKE OFF FROM CONVENTIONAL RUNWAYS AND OPERATE IN THE OUTER FRINGES OF THE ATMOSPHERE BY AIRLIQUEFACTION.
   UF  AEROSPACE PLANES
   BT  AEROSPACE CRAFT
   RT  RESEARCH AIRCRAFT

AEROSPORIN
   Use  POLYMYXINS

AEROSTATICS
   BT  FLUID MECHANICS
   BT  STATICS
   RT  HYDROSTATICS

aerothermodynamics
SN: The study of the thermodynamics of gases, especially at high relative velocities.
   BT  AERODYNAMICS
   BT  THERMODYNAMICS
   NT  aerodynamic heating

AEROTHERMOELASTICITY
   BT  AEROELASTICITY

AEROTHERMOPRESSORS
SN: DEVICES FOR INTRODUCING ATOMIZED WATER INTO HOT HIGH-SPEED GAS STREAMS TO OBTAINA RISE IN STAGNATION PRESSURE THROUGH EVAPORATIVE COOLING.
   BT  CENTRIFUGAL COMPRESSORS

AEROZINE
   BT  HYDRAZINES

AF(VESSELS)
   Use  CARGO SHIPS

AFC
   Use  AUTOMATIC FREQUENCY CONTROL

AFGHANISTAN
   BT  CENTRAL ASIA

AFGHANISTAN CONFLICT
SN: 01-APR-2006
   UF  ENDURING FREEDOM OPERATION
   BT  LIMITED WARFARE

AFOCAL OPTICAL LENSES
   BT  CAMERA LENSES

AFRICA
   BT  GEOGRAPHIC AREAS
   NT  NORTH AFRICA
   NT  SAHARAN AFRICA
   NT  SUBSAHARAN AFRICA
   NT  WEST AFRICA

AFRICAN AMERICANS
SN: 01-OCT-1995
   BT  BLACKS(RACIAL GROUP)
   BT  MINORITIES

AFRICANS
SN: 01-NOV-1980 - MEMBERS OF AN AFRICAN RACE.
   BT  ETHNIC GROUPS
   NT  EGYPTIANS

AFTERBODIES
   BT  BODIES
   NT  BOATTAIL AFTERBODIES
   NT  FLARED AFTERBODIES

AFTERBURNERS
   BT  JET ENGINES
   RT  AFTERBURNING

AFTERBURNING
   BT  COMBUSTION
   RT  AFTERBURNERS
   RT  THRUST AUGMENTATION

AFTERGLOWS
   BT  ATMOSPHERIC SCATTERING

AFTERIMAGES
   BT  VISION
   RT  OPTICAL IMAGES

AGAR
   BT  CULTURE MEDIA
   RT  ALGAE

AGC(ELECTRONICS)
   Use  AUTOMATIC GAIN CONTROL

AGE-DIFFUSION EQUATION
   Use  NEUTRON AGE

AGE DISTRIBUTION
SN: 01-JUN-1989 - THE DISTRIBUTION OF DIFFERENT AGE GROUPSIN A POPULATION.
   BT  DISTRIBUTION

AGE HARDENING
   BT  HARDENING

AGENT BASED SYSTEMS
   Use  MULTIAGENT SYSTEMS

AGENT ORANGE
SN: 01-JUN-1989 - A HERBICIDE WIDELY USED AS A DEFOLIANT IN THE VIETNAM WAR THAT IS COMPOSED OF 2,4-DICHLOROPHENOXYACETIC ACID (2,4-D) AND2,4,5-TRICHLOROPHENOXYACETIC ACID (2,4,5-T) AND CONTAINS DIOXIN AS A CONTAMINANT.
   BT  DEFOLIANTS
   BT  HERBICIDES

AGGLOMERATES
   BT  COMPOSITE MATERIALS
   RT  COALESCENCE

AGGLUTINATION
   BT  ANTIGEN ANTIBODY REACTIONS
   RT  ADHESION
   RT  AGGLUTININS
   RT  COHESION
   RT  HEMAGGLUTINATION TESTS

AGGLUTININS
   BT  ANTIBODIES
   RT  AGGLUTINATION

AGGLUTINOGENS
   Use  ANTIGENS

AGGREGATES(MATERIALS)
SN: 01-OCT-1991 - ACCUMULATIONS OF GRAVEL OR SMALL STONES WHICH FORM THE MAJOR CONSTITUENT OF CERTAIN CONSTRUCTION MATERIALS, SUCH AS CONCRETE.
   BT  CONSTRUCTION MATERIALS
   RT  GRAVEL
   RT  SLAGS

AGILE MANUFACTURING
SN: A term applied to an organization that has created the processes, tools, and training to enable it to respond quickly to customer needs and market changes while still controlling costs and quality. An enabling factor in becoming an agile manufacturer has been the development of manufacturing support technology that allows the marketers, the designers and the production personnel to share a common database of parts and products, to share data on production capacities and problems — particularly where small initial problems may have larger downstream effects. (July 2011)
   UF  fast and flexible manufacturing
   UF  lean manufacturing
   BT  MANUFACTURING

AGILE SOFTWARE DEVELOPMENT
SN: Software development methodologies based on iterative and incremental development, where requirements and solutions evolve through collaboration between self-organizing, cross-functional teams. (March 2011)
   BT  SOFTWARE ENGINEERING

AGING(MATERIALS)
SN: CHANGES IN MATERIALS OR PRODUCTS PRODUCED UNDER CERTAIN CONDITIONS BY THE PASSAGE OF TIME. INCLUDES THE ACT OF ALLOWINGSUCH CHANGES TO TAKE PLACE.
   BT  LIFE EXPECTANCY(SERVICE LIFE)
   RT  DEGRADATION

AGING(PHYSIOLOGY)
   UF  PHYSIOLOGICAL AGE
   UF  SENESCENCE
   BT  DEGENERATION(PHYSIOLOGY)
   RT  GERONTOLOGY
   RT  LIFE SPAN(BIOLOGY)
   RT  MATURATION

AGREEMENTS
   NT  TREATIES
   RT  NEGOTIATIONS

AGRICULTURAL CHEMISTRY
SN: 01-DEC-1984 - THE SCIENCE OF CHEMICAL COMPOSITION AND CHANGES INVOLVED IN THE PRODUCTION, PROTECTION, AND USE OF CROPS AND LIVESTOCK. INCLUDES ALL THE LIFE PROCESSES THROUGHWHICH FOOD AND FIBER ARE OBTAINED FOR MAN AND HIS ANIMALS, AND CONTROL OF THESEPROCESSES TO INCREASE YIELDS, IMPROVE QUALITY, AND REDUCE COSTS.
   BT  AGRICULTURE
   NT  FERTILIZERS
   RT  CHEMURGY

AGRICULTURAL ECONOMICS
SN: 01-OCT-1997
   BT  AGRICULTURE
   BT  ECONOMICS

AGRICULTURE
   NT  AGRICULTURAL CHEMISTRY
   NT  AGRICULTURAL ECONOMICS
   NT  AGRONOMY
   NT  ANIMAL HUSBANDRY
   NT  AQUICULTURE
   NT  FARMS
   NT  FORESTRY
   NT  HORTICULTURE
   NT  IRRIGATION SYSTEMS
   NT  PLANTING
   RT  SOIL SCIENCE

AGRONOMY
   BT  AGRICULTURE

AIDS
   Use  ACQUIRED IMMUNE DEFICIENCY SYNDROME

AIDS VIRUSES
   Use  HUMAN IMMUNODEFICIENCY VIRUSES

AILERON TABS
   Use  TRIM TABS

AILERONS
   UF  DROOPED AILERONS
   BT  TRAILING CONTROL SURFACES

AIMING
   BT  TARGETING

AIR
   NT  COMPRESSED AIR

AIR BAG RESTRAINT SYSTEMS
SN: 01-JUN-1997
   BT  SAFETY EQUIPMENT

AIR BEARINGS
   Use  GAS BEARINGS

AIR BRAKE FLAPS
   UF  AIRSPEED BRAKES
   UF  SPEED BRAKE FLAPS
   UF  WING SPEED BRAKES
   BT  FLAPS(CONTROL SURFACES)

AIR BRAKES
   Use  PNEUMATIC BRAKES

AIR BREATHING ENGINES
   BT  ENGINES
   NT  AIR BREATHING ENGINES(UNCONVENTIONAL)

AIR BREATHING ENGINES(UNCONVENTIONAL)
   BT  AIR BREATHING ENGINES

AIR CAPABLE SHIPS
SN: 01-SEP-1990 - ALL TYPES OF SHIPS, EXCEPT AIRCRAFT CARRIERS, WHICH ARE CAPABLE OF LAUNCHING, RECOVERING, AND HANDLING AIRCRAFT; USUALLYHELICOPTERS OR VERTICAL TAKEOFF AIRCRAFT.
   BT  SHIPS

AIR CLEANERS
   NT  AIR FILTERS
   RT  ABSORBERS(EQUIPMENT)

AIR COMPRESSORS
   BT  COMPRESSORS
   RT  COMPRESSED AIR

AIR CONDITIONING EQUIPMENT
   BT  COOLING AND VENTILATING EQUIPMENT
   NT  HEAT PUMPS
   NT  HUMIDIFIERS
   RT  AIR FILTERS
   RT  AIR POLLUTION CONTROL EQUIPMENT
   RT  CONTROLLED ATMOSPHERES

AIR CONTROL CENTERS
SN: THE PRINCIPAL AIR OPERATIONS INSTALLATIONS FROM WHICH ALL AIRCRAFT AND AIR WARNING FUNCTIONS OF TACTICAL AIR OPERATIONS ARE CONTROLLED.
   BT  AIR TRAFFIC CONTROL SYSTEMS
   NT  TACTICAL AIR CONTROL SYSTEMS
   RT  AIRCRAFT INTERCEPT CONTROL SYSTEMS

AIR COOLED
   BT  COOLING
   NT  WIND CHILL

AIR CUSHION VEHICLES
   BT  GROUND EFFECT MACHINES

AIR DEFENSE
   BT  DEFENSE SYSTEMS
   NT  ANTIAIRCRAFT DEFENSE SYSTEMS
   NT  ANTIMISSILE DEFENSE SYSTEMS
   NT  FORWARD AREA AIR DEFENSE SYSTEMS
   NT  TERMINAL DEFENSE

AIR DEFENSE COMMAND
SN: Retired September 2011. Use Air Force and Military Organizations.
   BT  AIR FORCE
   BT  retired descriptors

AIR DROP OPERATIONS
   BT  AERIAL DELIVERY
   BT  MILITARY OPERATIONS
   NT  PARACHUTE JUMPING
   RT  AERIAL PICKUP SYSTEMS

AIR EJECTORS
   BT  EJECTORS
   BT  ENGINE AIR SYSTEMS COMPONENTS

AIR ENTRAINMENT
   BT  ENTRAINMENT

AIR FILTERS
   BT  AIR CLEANERS
   BT  GAS FILTERS
   RT  AIR CONDITIONING EQUIPMENT
   RT  AIR POLLUTION CONTROL EQUIPMENT

AIR FLOW
   BT  GAS FLOW
   NT  DOWNWASH

AIR FORCE
   BT  MILITARY FORCES(UNITED STATES)
   NT  AIR DEFENSE COMMAND
   NT  AIR FORCE LOGISTICS COMMAND
   NT  AIR FORCE SYSTEMS COMMAND
   NT  STRATEGIC AIR COMMAND
   NT  TACTICAL AIR COMMAND

AIR FORCE ACADEMY
   Use  UNITED STATES AIR FORCE ACADEMY

AIR FORCE BUDGETS
   BT  MILITARY BUDGETS

AIR FORCE EQUIPMENT
   BT  LOGISTICS
   BT  MILITARY EQUIPMENT

AIR FORCE FACILITIES
   BT  MILITARY FACILITIES

AIR FORCE LOGISTICS COMMAND
SN: Retired July 2011. Use Air Force and Military Organizations.
   BT  AIR FORCE
   BT  retired descriptors

AIR FORCE OPERATIONS
   BT  MILITARY OPERATIONS

AIR FORCE PERSONNEL
   BT  MILITARY PERSONNEL

AIR FORCE PLANNING
   BT  MILITARY PLANNING

AIR FORCE PROCUREMENT
   BT  MILITARY PROCUREMENT

AIR FORCE RESEARCH
   BT  MILITARY RESEARCH

AIR FORCE SYSTEMS COMMAND
SN: Retired August 2011, Use Air Force and Military Organziations.
   BT  AIR FORCE
   BT  retired descriptors

AIR FORCE TRAINING
   BT  MILITARY TRAINING

AIR GAPS
SN: 01-NOV-1980 - GAPS OR EQUIVALENT FILLERS OF NONMAGNETIC MATERIAL ACROSS THE CORE OF A CHOKE, TRANSFORMER OR OTHER MAGNETIC DEVICE.
   BT  DISCONTINUITIES

AIR GUNS
   BT  GUNS

AIR HEATERS
   BT  HEATERS
   NT  SPACE HEATERS

AIR INTAKES
   BT  INLETS
   NT  CARBURETOR AIR SCOOPS
   NT  SUPERSONIC INLETS
   RT  MANIFOLDS(ENGINES)
   RT  SCOOPS

AIR INTELLIGENCE
   BT  MILITARY INTELLIGENCE

AIR LAND BATTLES
SN: 01-JUN-1989 - COMBAT WAGED BY GROUND FORCES WITH AIR SUPPORT; A CONCEPT OF AGGRESSIVE, MOBILE,AIR-SUPPORTED GROUND COMBAT.
   BT  BATTLES

AIR LAUNCHED
   BT  LAUNCHING

AIR LOCKS
   BT  COMPARTMENTS

AIR LOGISTICS SUPPORT
SN: 01-MAY-1981
   BT  LOGISTICS SUPPORT

AIR MASS ANALYSIS
   BT  WEATHER

AIR MASSES
SN: 01-OCT-1991 - AN EXTENT OF THE ATMOSPHERE, IDENTIFIED BY ITS TEMPERATURE HUMIDITY CURVE, WHICHIDENTIFIES A SINGLE WEATHER CHARACTERISTIC.
   BT  METEOROLOGICAL PHENOMENA

AIR NAVIGATION
SN: 01-JUN-1989 - ART, SCIENCE, OR ACTION OF PLOTTING AND DIRECTING FROM WITHIN AN AIRCRAFT ITS MOVEMENT THROUGH THE AIR FROM ONE PLACE TOANOTHER.
   BT  NAVIGATION
   NT  TACAN
   RT  AIR TRAFFIC CONTROL SYSTEMS
   RT  FLIGHT PATHS
   RT  LORAN

AIR PIRACY
   Use  AIRCRAFT HIJACKING

AIR POLLUTION
   UF  ATMOSPHERIC CONTAMINATION
   UF  ATMOSPHERIC IMPURITIES
   UF  ATMOSPHERIC POLLUTION
   BT  POLLUTION
   NT  AIR POLLUTION CONTROL EQUIPMENT
   NT  AIR POLLUTION EFFECTS(ANIMALS)
   NT  AUTOMOBILE EXHAUST
   NT  INDOOR AIR POLLUTION
   NT  OZONE DEPLETION
   NT  SMOG
   RT  AIR QUALITY
   RT  ATMOSPHERIC CHEMISTRY
   RT  COMBUSTION PRODUCTS
   RT  DUST STORMS
   RT  HAZE
   RT  ODORS

AIR POLLUTION CONTROL EQUIPMENT
   BT  AIR POLLUTION
   BT  POLLUTION ABATEMENT
   NT  SCRUBBERS
   RT  AIR CONDITIONING EQUIPMENT
   RT  AIR FILTERS

AIR POLLUTION EFFECTS(ANIMALS)
   BT  AIR POLLUTION

AIR POWER
   BT  AERIAL WARFARE
   BT  MILITARY FORCE LEVELS

AIR PRESSURE
   BT  PRESSURE

AIR QUALITY
   BT  QUALITY
   RT  AIR POLLUTION

AIR RESISTANCE
   BT  RESISTANCE

AIR SEA INTERACTIONS
   Use  AIR WATER INTERACTIONS

AIR SEA RESCUE BEACONS
   BT  RESCUE BEACONS

AIR SEA RESCUES
   BT  SEA RESCUES

AIR SICKNESS
   Use  MOTION SICKNESS

AIR SPACE
   NT  ULLAGE

AIR SPRINGS
   BT  PNEUMATIC EQUIPMENT
   BT  SPRINGS

AIR STRIKES
   BT  AERIAL WARFARE

AIR SUPERIORITY FIGHTERS
   BT  JET FIGHTERS

AIR SUPPLIES
SN: 01-MAY-1981
   BT  PNEUMATIC EQUIPMENT
   NT  BELLOWS

AIR TO AIR
   BT  TRAJECTORIES

AIR TO AIR MISSILES
   BT  GUIDED MISSILES
   RT  ANTIAIRCRAFT MISSILES

AIR TO SPACE
   BT  ASCENT TRAJECTORIES

AIR TO SPACE MISSILES
   BT  GUIDED MISSILES

AIR TO SURFACE
   BT  DESCENT TRAJECTORIES

AIR TO SURFACE MISSILES
   BT  GUIDED MISSILES
   NT  STANDOFF MISSILES

AIR TO UNDERWATER
   BT  DESCENT TRAJECTORIES

AIR TO UNDERWATER MISSILES
   BT  GUIDED MISSILES

AIR TOWED
   BT  TOWING

AIR TRAFFIC
   BT  TRAFFIC
   RT  AIR TRANSPORTATION
   RT  FLIGHT PATHS

AIR TRAFFIC CONTROL SYSTEMS
SN: THE PERSONNEL, EQUIPMENT, AND TECHNIQUESFOR SCHEDULING TAKEOFFS, LANDINGS AND FLIGHT PATTERNS OF AIRCRAFT IN A GIVEN AIR SPACE.
   NT  AIR CONTROL CENTERS
   NT  AIR TRAFFIC CONTROL TERMINAL AREAS
   NT  DISCRETE ADDRESS BEACON SYSTEMS
   NT  GLIDE PATH SYSTEMS
   NT  MICROWAVE LANDING SYSTEMS
   NT  RADAR LANDING CONTROL
   RT  AIR NAVIGATION
   RT  AIR TRAFFIC CONTROLLERS
   RT  AIRCRAFT LANDINGS
   RT  AIRPORT RADAR SYSTEMS
   RT  AIRPORTS
   RT  AVIATION SAFETY
   RT  FLIGHT CONTROL SYSTEMS

AIR TRAFFIC CONTROL TERMINAL AREAS
   BT  AIR TRAFFIC CONTROL SYSTEMS

AIR TRAFFIC CONTROLLERS
   BT  AVIATION PERSONNEL
   BT  OPERATORS(PERSONNEL)
   RT  AIR TRAFFIC CONTROL SYSTEMS

AIR TRANSPORTABLE EQUIPMENT
   BT  PORTABLE EQUIPMENT

AIR TRANSPORTATION
SN: THE CONVEYANCE OF CARGO OR PERSONNEL BY AIRCRAFT. FOR EQUIPMENT AND SYSTEMS CHARACTERIZED BY USE ABOARD AIRCRAFT, SEE AIRBORNE.
   BT  TRANSPORTATION
   NT  AERIAL DELIVERY
   NT  AEROMEDICAL EVACUATION
   RT  AIR TRAFFIC
   RT  COMMERCIAL AIRCRAFT

AIR WATER INTERACTIONS
   UF  AIR SEA INTERACTIONS
   BT  INTERACTIONS
   RT  EVAPORATION

AIRBORNE EARLY WARNING
   BT  EARLY WARNING SYSTEMS

AIRBORNE WARNING AND CONTROL SYSTEM
   BT  ELECTRONIC AIRCRAFT
   RT  CONTROL SYSTEMS
   RT  WARNING SYSTEMS

AIRBURST
   BT  EXPLOSIONS
   NT  HEIGHT OF BURST

aircraft
SN: Use of a narrower term is recommended.
   UF  AIRPLANES
   NT  AEROSPACE CRAFT
   NT  AIRSHIPS
   NT  ALL WING AIRCRAFT
   NT  AMPHIBIOUS AIRCRAFT
   NT  BALLOONS
   NT  COAST GUARD AIRCRAFT
   NT  COMMERCIAL AIRCRAFT
   NT  COMPOSITE AIRCRAFT
   NT  DOWNED AIRCRAFT
   NT  DRONES
   NT  FIXED WING AIRCRAFT
   NT  GENERAL AVIATION AIRCRAFT
   NT  GLIDERS
   NT  GROUND EFFECT MACHINES
   NT  JET AIRCRAFT
   NT  MILITARY AIRCRAFT
   NT  PARASITE AIRCRAFT
   NT  RESEARCH AIRCRAFT
   NT  ROCKET AIRCRAFT
   NT  ROTARY WING AIRCRAFT
   NT  SHORT TAKEOFF AIRCRAFT
   NT  TAILLESS AIRCRAFT
   NT  TANKER AIRCRAFT
   NT  tilt wing aircraft
   NT  TOWED AIRCRAFT
   NT  TOWING AIRCRAFT
   NT  TRAINING AIRCRAFT
   NT  TRANSONIC AIRCRAFT
   NT  TRANSPORT AIRCRAFT
   NT  ULTRALIGHT AIRCRAFT
   NT  UTILITY AIRCRAFT
   NT  VARIABLE STABILITY AIRCRAFT
   NT  VERTICAL TAKEOFF AIRCRAFT
   RT  AIRCRAFT EQUIPMENT
   RT  AIRCRAFT INDUSTRY
   RT  AIRFRAMES

AIRCRAFT ACCIDENTS
   Use  AVIATION ACCIDENTS

AIRCRAFT AMMUNITION
   BT  AMMUNITION
   RT  AIRCRAFT ROCKETS
   RT  AIRCRAFT TORPEDOES

AIRCRAFT ANTENNAS
   BT  AIRCRAFT EQUIPMENT
   BT  ANTENNAS
   NT  AIRSHIP ANTENNAS

AIRCRAFT CABINS
SN: ENCLOSED COMPARTMENTS IN AIRCRAFT FOR CARGO, PASSENGERS, OR CREW MEMBERS. FOR SIMILAR COMPARTMENTS ESPECIALLY DESIGNED FOR THE PILOT OR FOR THE PILOT AND COPILOT, SEE COCKPITS.
   BT  FUSELAGES
   NT  WHEEL WELLS
   RT  COCKPITS
   RT  PRESSURIZED CABINS

AIRCRAFT CANOPIES
   BT  CANOPIES

AIRCRAFT CARBURETORS
   BT  CARBURETORS

AIRCRAFT CARRIER ESCORTS
   Use  ESCORT SHIPS

AIRCRAFT CARRIERS
   UF  CARRIERS(NAVAL VESSELS)
   BT  NAVAL VESSELS(COMBATANT)
   RT  CARRIER BASED AIRCRAFT
   RT  FLIGHT DECKS

AIRCRAFT CONTROL CABLES
   BT  AIRCRAFT EQUIPMENT
   BT  MECHANICAL CABLES

AIRCRAFT DEFENSE SYSTEMS
   BT  DEFENSE SYSTEMS
   RT  AIRCRAFT GUNS

AIRCRAFT DESIGN
SN: 01-OCT-1995
   BT  AERONAUTICAL ENGINEERING
   RT  AERODYNAMIC CONFIGURATIONS

AIRCRAFT DETECTION
   BT  DETECTION
   RT  AIRCRAFT INTERCEPTION

AIRCRAFT DOORS
   BT  DOORS
   BT  FUSELAGES
   NT  BOMB BAY DOORS
   NT  LANDING GEAR DOORS

AIRCRAFT ENGINE COWLINGS
SN: 01-MAY-1981
   BT  ENGINE COMPONENTS

AIRCRAFT ENGINE DUCTS
   BT  DUCTS
   BT  ENGINE AIR SYSTEMS COMPONENTS

AIRCRAFT ENGINE HEATERS
SN: 01-MAY-1981 - DEVICES USED TO RAISE THE TEMPERATURE OFAN ENGINE, AS TO FACILITATE STARTING INCOLD WEATHER.
   BT  HEATERS

AIRCRAFT ENGINE NOISE
   BT  ENGINE NOISE
   RT  AIRCRAFT NOISE

AIRCRAFT ENGINE OILS
SN: 01-MAY-1981
   BT  LUBRICATING OILS

AIRCRAFT ENGINES
   UF  AIRCRAFT POWER SOURCES
   BT  ENGINES
   NT  HELICOPTER ENGINES
   RT  AIRCRAFT NUCLEAR PROPULSION

AIRCRAFT EQUIPMENT
SN: DEVICES LOCATED IN OR ON AIRCRAFT, EXCLUDING THE CONTROL SURFACES, PARTS OF THE AIRFRAME, AND THE PROPULSION SYSTEM.
   NT  AIRCRAFT ANTENNAS
   NT  AIRCRAFT CONTROL CABLES
   NT  AIRCRAFT SEATS
   NT  AIRCRAFT TIRES
   RT  aircraft
   RT  FLIGHT INSTRUMENTS

AIRCRAFT ESCAPE CAPSULES
   Use  JETTISONABLE COCKPITS

AIRCRAFT EXHAUST
   BT  EXHAUST GASES

AIRCRAFT FINISHES
   BT  FINISHES
   RT  ANTIRADAR COATINGS

AIRCRAFT FIRE CONTROL SYSTEMS
SN: SYSTEMS CONTAINING TARGET LOCATORS, COMPUTERS, AND DIRECTORS FOR EMPLOYING AIRCRAFT-MOUNTED WEAPONS AGAINST AIR OR SURFACE TARGETS.
   BT  FIRE CONTROL SYSTEMS
   RT  AIRCRAFT GUNS
   RT  ANTIAIRCRAFT FIRE CONTROL SYSTEMS
   RT  BOMB EJECTORS

AIRCRAFT FIRES
   BT  FIRES

AIRCRAFT FLARES
   BT  FLARES

AIRCRAFT GUNS
   BT  GUNS
   RT  AIRCRAFT DEFENSE SYSTEMS
   RT  AIRCRAFT FIRE CONTROL SYSTEMS

AIRCRAFT HEATERS
SN: DEVICES USED TO HEAT THE INTERIORSOF AIRCRAFT. FOR DEVICES USED TO RAISE THE TEMPERATURE OF THE ENGINE, AS TO FACILITATE STARTING IN COLD WEATHER, SEE AIRCRAFTENGINE HEATERS.
   BT  SPACE HEATERS

AIRCRAFT HIJACKING
   UF  AIR PIRACY
   BT  CRIMES
   BT  CRIMINOLOGY

AIRCRAFT INDUSTRY
   BT  AEROSPACE INDUSTRY
   RT  AERONAUTICAL ENGINEERING
   RT  aircraft

AIRCRAFT INTERCEPT CONTROL SYSTEMS
   BT  AIRCRAFT INTERCEPTION
   RT  AIR CONTROL CENTERS

AIRCRAFT INTERCEPTION
   BT  INTERCEPTION
   NT  AIRCRAFT INTERCEPT CONTROL SYSTEMS
   RT  AIRCRAFT DETECTION

AIRCRAFT LANDINGS
   BT  LANDING
   NT  CARRIER LANDINGS
   NT  CRASH LANDINGS
   NT  FLAREOUT
   NT  INSTRUMENT LANDINGS
   NT  NIGHT LANDINGS
   RT  AIR TRAFFIC CONTROL SYSTEMS
   RT  TERMINAL FLIGHT FACILITIES

AIRCRAFT LOFTING
SN: 01-DEC-1984 - THE DESIGN AND LAYOUT, ON METAL SHEETS, OF FULL SCALE DRAWINGS OF AIRCRAFT PARTS.
   BT  AERONAUTICAL ENGINEERING
   BT  ENGINEERING DRAWINGS

AIRCRAFT MAINTENANCE
   BT  MAINTENANCE

AIRCRAFT MARKINGS
   BT  IDENTIFICATION

AIRCRAFT MODELS
SN: 01-MAY-1981
   BT  MODELS

AIRCRAFT NOISE
   BT  NOISE(SOUND)
   NT  JET AIRCRAFT NOISE
   RT  AERODYNAMIC NOISE
   RT  AIRCRAFT ENGINE NOISE

AIRCRAFT NOSES
SN: 01-MAY-1981
   BT  FUSELAGES
   BT  NOSES
   RT  NOSE WHEELS

AIRCRAFT NUCLEAR PROPULSION
   BT  NUCLEAR PROPULSION
   RT  AIRCRAFT ENGINES

AIRCRAFT PANELS
SN: 01-MAY-1981
   BT  AIRFRAMES
   BT  PANELS

AIRCRAFT POWER SOURCES
   Use  AIRCRAFT ENGINES

AIRCRAFT PROTUBERANCES
   BT  PROTUBERANCES
   NT  AIRCRAFT TURRETS
   RT  AERODYNAMIC CONFIGURATIONS

AIRCRAFT ROCKETS
   BT  ROCKETS
   RT  AIRCRAFT AMMUNITION

AIRCRAFT SEARCHLIGHTS
   BT  SEARCHLIGHTS

AIRCRAFT SEATS
   BT  AIRCRAFT EQUIPMENT
   BT  SEATS
   NT  PILOT SEATS

AIRCRAFT SIGNATURES
   BT  SIGNATURES

AIRCRAFT TIRES
   BT  AIRCRAFT EQUIPMENT
   BT  TIRES
   RT  LANDING GEAR

AIRCRAFT TORPEDOES
   UF  AERIAL TORPEDOES
   BT  TORPEDOES
   RT  AIRCRAFT AMMUNITION

AIRCRAFT TRACTORS
   BT  TRACTORS

AIRCRAFT TURRETS
   BT  AIRCRAFT PROTUBERANCES
   RT  GUN TURRETS

AIRCREWS
   Use  FLIGHT CREWS

AIRFIELDS
   Use  LANDING FIELDS

AIRFOILS
   NT  AERODYNAMIC CONTROL SURFACES
   NT  BLADE AIRFOILS
   NT  LOW DRAG AIRFOILS
   NT  SUPERCRITICAL AIRFOILS
   NT  SUPERSONIC AIRFOILS
   NT  TRANSONIC AIRFOILS
   NT  WINGS
   RT  AERODYNAMIC CONFIGURATIONS
   RT  HYDROFOILS
   RT  STABILIZATION SYSTEMS

AIRFRAMES
   UF  FRAMES(AIRCRAFT)
   NT  AIRCRAFT PANELS
   NT  AIRSHIP ENVELOPES
   NT  FUSELAGES
   NT  LANDING GEAR
   NT  WINGS
   RT  AERODYNAMIC CONFIGURATIONS
   RT  aircraft
   RT  SPARS

AIRGLOW
   BT  LIGHT
   NT  ZODIACAL LIGHT
   RT  AERONOMY
   RT  CHEMILUMINESCENCE

AIRLIFT OPERATIONS
   NT  AIRMOBILE OPERATIONS

AIRLINERS
   Use  COMMERCIAL AIRCRAFT

AIRMOBILE OPERATIONS
   BT  AIRLIFT OPERATIONS
   BT  MILITARY OPERATIONS

AIRPLANES
   Use  aircraft

AIRPORT CONTROL TOWERS
   BT  TERMINAL FLIGHT FACILITIES

AIRPORT RADAR SYSTEMS
SN: RADAR SYSTEMS USED AT AIRPORTS FOR VARIOUS APPLICATIONS INCLUDING NAVIGATION, WEATHER OBSERVATION, AND TRAFFIC CONTROL.
   BT  RADAR
   BT  RADAR LANDING CONTROL
   RT  AIR TRAFFIC CONTROL SYSTEMS

AIRPORTS
   BT  TERMINAL FLIGHT FACILITIES
   NT  HELIPORTS
   NT  INTERNATIONAL AIRPORTS
   RT  AIR TRAFFIC CONTROL SYSTEMS

AIRSHIP ANTENNAS
   BT  AIRCRAFT ANTENNAS

AIRSHIP ENVELOPES
   BT  AIRFRAMES

AIRSHIPS
   UF  BLIMPS
   UF  DIRIGIBLES
   BT  aircraft
   RT  BALLOONS
   RT  GONDOLAS
   RT  POWERED BALLOONS

AIRSPEED
   BT  FLIGHT SPEEDS

AIRSPEED BRAKES
   Use  AIR BRAKE FLAPS

AIRSPEED INDICATORS
   BT  FLIGHT SPEED INDICATORS
   NT  STALL WARNING INDICATORS
   RT  ANEMOMETERS

AIRSTREAM DIRECTION DETECTORS
   Use  ATTITUDE INDICATORS

AIRWORTHINESS
   BT  AVIATION SAFETY

AIRY HARDY INTEGRALS
   Use  INTEGRALS

AIRY SERIES
   Use  SERIES(MATHEMATICS)

AJACONINE
   Use  ALKALOIDS

ALABAMA
   BT  UNITED STATES

ALABAMA RIVER
   BT  RIVERS

ALANINES
   BT  AMINO ACIDS
   NT  LEVODOPA
   NT  PHENYLALANINE

ALARMS
   Use  WARNING SYSTEMS

ALASKA
   BT  UNITED STATES
   NT  ALEUTIAN ISLANDS
   NT  BARTER ISLAND

ALASKA GULF
   BT  GULFS

ALBANIA
   BT  EASTERN EUROPE

ALBEDO
SN: RATIO OF REFLECTED RADIATION, EMERGENT NEUTRONS, OR SECONDARY COSMIC RAYS TO INCIDENT RADIATION OR NEUTRONS, OR PRIMARY COSMIC RAYS.
   BT  REFLECTANCE

ALBEDO(ASTRONOMY)
   BT  ASTRONOMY

ALBERTA
   BT  CANADA

ALBINISM
   BT  PHYSIOLOGY
   RT  MELATONIN
   RT  SKIN(ANATOMY)

ALBUMINOIDS
   UF  ELASTIN
   UF  SCLEROPROTEINS
   BT  PROTEINS(SIMPLE)
   NT  COLLAGEN

ALBUMINS
   BT  PROTEINS(SIMPLE)
   NT  EGG ALBUMIN
   NT  SERUM ALBUMIN

ALCOHOL CONSUMPTION
   BT  CONSUMPTION
   RT  ALCOHOLISM

ALCOHOLIC BEVERAGES
SN: 01-OCT-1994
   BT  BEVERAGES

ALCOHOLISM
   BT  DISEASES
   RT  ALCOHOL CONSUMPTION
   RT  CIRRHOSIS

ALCOHOLS
   BT  ORGANIC COMPOUNDS
   NT  BUTANOLS
   NT  CARBINOLS
   NT  CORTISOL
   NT  CYCLOHEXANOLS
   NT  ETHANOLS
   NT  GLYCEROLS
   NT  GLYCOLS
   NT  METHANOLS
   NT  OCTOL
   NT  PENTANOLS
   NT  PROPANOLS
   NT  SUGAR ALCOHOLS
   NT  VINYL ALCOHOL

ALDEHYDE LYASES
   UF  ALDOLASES
   BT  LYASES

ALDEHYDE POLYMERS
   BT  POLYMERS

ALDEHYDES
   BT  ORGANIC COMPOUNDS
   NT  ACETALDEHYDE
   NT  ACROLEINS
   NT  BENZALDEHYDES
   NT  FORMALDEHYDE
   NT  FURALDEHYDES

ALDOBIURONIC ACIDS
   Use  URONIC ACIDS

ALDOLASES
   Use  ALDEHYDE LYASES

ALDOSES
   BT  MONOSACCHARIDES

ALDOSTERONE
   BT  ADRENAL CORTEX HORMONES

ALDOXIMES
   BT  OXIMES

ALDRIN
   BT  HALOGENATED HYDROCARBONS
   RT  INSECTICIDES

ALERTNESS
   Use  ATTENTION

ALEUTIAN ISLANDS
   BT  ALASKA
   BT  PACIFIC OCEAN ISLANDS

ALFALFA
   BT  PLANTS(BOTANY)
   RT  FARM CROPS

ALFVEN WAVES
   Use  MAGNETOHYDRODYNAMIC WAVES

ALGAE
   UF  CHLOROPHYTA
   UF  CHRYSOPHYTA
   UF  CYANOPHYTA
   UF  EUGLENOPHYTA
   UF  HYDROPHYTES
   UF  PYRROPHYTA
   UF  RHODOPHYTA
   UF  SEAWEED
   BT  MICROORGANISMS
   NT  CHLORELLA
   NT  DIATOMS
   NT  DINOFLAGELLATA
   NT  KELP
   NT  LICHENS
   NT  MICROCYSTIS
   RT  AGAR

ALGEBRA
   UF  ABELIAN FIELDS
   UF  DISCRIMINANTS
   UF  HILBERT'S NULLSTELLENSATZ
   UF  LATTICE SUMS
   UF  LATTICES(MATHEMATICS)
   UF  LIE RINGS
   UF  ORDERED DIVISION RINGS
   UF  ORDERED FIELDS
   UF  ORDERED RINGS
   UF  RING DOMAINS
   UF  STRUCT IDEALS
   BT  MATHEMATICS
   NT  ALGEBRAIC GEOMETRY
   NT  CONVEX SETS
   NT  DETERMINANTS(MATHEMATICS)
   NT  FIELD THEORY(ALGEBRA)
   NT  LINEAR ALGEBRA
   NT  NONLINEAR ALGEBRAIC EQUATIONS

ALGEBRAIC FUNCTIONS
   BT  FUNCTIONS(MATHEMATICS)

ALGEBRAIC GEOMETRY
   UF  ARITHMETIC GENUS
   UF  JACOBIAN VARIETIES
   UF  KAHLER VARIETIES
   UF  TODD GENUS
   BT  ALGEBRA
   BT  GEOMETRY

ALGEBRAIC TOPOLOGY
   UF  COHOMOLOGY
   UF  FIBERINGS
   UF  FLOWS (TOPOLOGY)
   UF  GEODESIC FLOWS
   UF  HOMOTOPY
   UF  KRON'S METHOD
   UF  KURANISHI'S THEORY
   UF  LINE BUNDLES
   UF  N-PLANE BUNDLES
   UF  NON ABELIAN COHOMOLOGY
   UF  POINCARE DUALITY (THEOREM)
   UF  PONTRYAGIN PRODUCT
   UF  PROLONGATIONS
   UF  RIEMANNIAN SPACE
   BT  TOPOLOGY

ALGERIA
   BT  NORTH AFRICA

ALGIN
   Use  ALGINIC ACID

ALGINATES
   Use  ALGINIC ACID

ALGINIC ACID
   UF  ALGIN
   UF  ALGINATES
   UF  NORGINE
   BT  POLYSACCHARIDES
   BT  URONIC ACIDS

ALGOL
   Use  HIGH LEVEL LANGUAGES

ALGORITHMS
   BT  MATHEMATICS
   RT  HEURISTIC METHODS

ALIGNMENT
   NT  CAMBER
   NT  MISALIGNMENT
   RT  BEARING(DIRECTION)
   RT  CLEARANCES

ALIPHATIC ACIDS
   BT  ORGANIC ACIDS
   NT  ACRYLIC ACID
   NT  FATTY ACIDS
   NT  SEBACIC ACID
   NT  SUCCINIC ACID

ALIPHATIC COMPOUNDS
   BT  ORGANIC COMPOUNDS
   NT  ALIPHATIC HYDROCARBONS
   NT  HYDRAZINES

ALIPHATIC HYDROCARBONS
SN: 01-SEP-1981 - HYDROCARBONS WITH NO BENZENE RINGS.
   BT  ALIPHATIC COMPOUNDS
   BT  HYDROCARBONS

ALKALI GLASS
   BT  GLASS

ALKALI METAL ALLOYS
   BT  ALLOYS
   NT  CESIUM ALLOYS
   NT  LITHIUM ALLOYS
   NT  POTASSIUM ALLOYS
   NT  SODIUM ALLOYS

ALKALI METAL COMPOUNDS
   BT  INORGANIC COMPOUNDS
   NT  CESIUM COMPOUNDS
   NT  FRANCIUM COMPOUNDS
   NT  LITHIUM COMPOUNDS
   NT  POTASSIUM COMPOUNDS
   NT  RUBIDIUM COMPOUNDS
   NT  SODIUM COMPOUNDS

ALKALI METALS
   BT  METALS
   NT  CESIUM
   NT  FRANCIUM
   NT  LITHIUM
   NT  POTASSIUM
   NT  RUBIDIUM
   NT  SODIUM

ALKALINE BATTERIES
   BT  ELECTRIC BATTERIES
   NT  LITHIUM BATTERIES
   NT  NICKEL CADMIUM BATTERIES

ALKALINE EARTH COMPOUNDS
   BT  CHEMICAL COMPOUNDS
   NT  ALKALINE EARTH OXIDES
   NT  BARIUM COMPOUNDS
   NT  BERYLLIUM COMPOUNDS
   NT  CALCIUM COMPOUNDS
   NT  MAGNESIUM COMPOUNDS
   NT  RADIUM COMPOUNDS
   NT  STRONTIUM COMPOUNDS

ALKALINE EARTH METALS
   BT  METALS
   NT  BARIUM
   NT  BERYLLIUM
   NT  CALCIUM
   NT  MAGNESIUM
   NT  RADIUM
   NT  STRONTIUM

ALKALINE EARTH OXIDES
   BT  ALKALINE EARTH COMPOUNDS
   BT  OXIDES
   NT  BARIUM OXIDES
   NT  BERYLLIUM OXIDES
   NT  CALCIUM OXIDES
   NT  MAGNESIUM OXIDES

ALKALINITY
   BT  CHEMICAL PROPERTIES
   RT  PH FACTOR
   RT  SALINITY

ALKALOIDS
   UF  ACONITINE
   UF  AJACONINE
   UF  ANNOTININE
   UF  ATISINE
   UF  BAPTIFOLINE
   UF  CARPAINE
   UF  DELCOSINE
   UF  HORDENINE
   UF  NAPELLINE
   UF  RHYNCOPHYLLINE
   UF  RYANODINE
   NT  COLCHICINE
   NT  INDOLE ALKALOIDS
   NT  ISOQUINOLINE ALKALOIDS
   NT  MUSCARINE
   NT  NICOTINE
   NT  ORIPAVINE
   NT  PURINE ALKALOIDS
   NT  QUINOLINE ALKALOIDS
   NT  THEBAINE
   NT  TROPANE ALKALOIDS
   RT  DRUGS

ALKALOSIS
   Use  METABOLIC DISEASES

ALKANES
   BT  HYDROCARBONS
   NT  BUTANES
   NT  CYCLOALKANES
   NT  DECANES
   NT  DODECANE
   NT  EICOSANE
   NT  ETHANES
   NT  HEPTANES
   NT  HEXADECANE
   NT  HEXANES
   NT  METHANE
   NT  METHANES
   NT  NONANE
   NT  OCTADECANES
   NT  PENTANES
   NT  PROPANE

ALKENES
   BT  HYDROCARBONS
   BT  UNSATURATED HYDROCARBONS
   NT  BUTENES
   NT  CYCLOALKENES
   NT  DIENES
   NT  ETHYLENE
   NT  ETHYLENES
   NT  HEXENES
   NT  KETONES
   NT  METHYLENES
   NT  PROPENES

ALKOXY RADICALS
   BT  ALKYL RADICALS
   BT  ORGANIC RADICALS

ALKYD RESINS
   Use  POLYESTER PLASTICS

ALKYL RADICALS
   BT  ORGANIC RADICALS
   NT  ALKOXY RADICALS
   NT  BUTYL RADICALS
   NT  ETHYL RADICALS
   NT  HEXYL RADICALS
   NT  METHYL RADICALS
   NT  NONYL RADICALS
   NT  OCTYL RADICALS
   NT  PROPYL RADICALS
   NT  VINYL RADICALS

ALKYL TRANSFERASES
   UF  THIAMINASE I
   BT  TRANSFERASES

ALKYLATION
   BT  CHEMICAL REACTIONS
   NT  METHYLATION

ALKYNES
   BT  UNSATURATED HYDROCARBONS
   NT  ACETYLENES

ALL INERTIAL GUIDANCE
   BT  INERTIAL GUIDANCE

ALL SKY CAMERAS
SN: 01-OCT-1994 - A CAMERA WHICH CAN PHOTOGRAPH THE ENTIRESKY SIMULTANEOUSLY.
   BT  CAMERAS

ALL VOLUNTEER
   BT  MILITARY PERSONNEL

ALL WEATHER
   BT  WEATHER

ALL WEATHER AVIATION
   BT  AERONAUTICS

ALL WING AIRCRAFT
   BT  aircraft

ALLANTOIN
   Use  HYDANTOINS

ALLERGENIC EXTRACTS
   BT  BIOLOGICAL EXTRACTS

ALLERGENS
   BT  ALLERGIC DISEASES
   BT  ANTIGENS
   RT  SKIN TESTS

ALLERGIC DISEASES
   BT  DISEASES
   NT  ALLERGENS
   NT  ANAPHYLAXIS
   NT  ASTHMA
   NT  DERMATITIS
   RT  HYPERSENSITIVITY
   RT  IMMUNOLOGY

ALLETHRIN
   BT  INSECTICIDES

ALLIGATOR WEED
   BT  AQUATIC WEEDS

ALLOCATIONS
   UF  ASSIGNMENT
   NT  BILLETS(PERSONNEL)
   NT  FREQUENCY ALLOCATION
   RT  DISTRIBUTION
   RT  ESTIMATES

ALLOWED BETA TRANSITIONS
   Use  SELECTION RULES(PHYSICS)

ALLOXAN
   BT  PYRIMIDINES

ALLOYS
   NT  ALKALI METAL ALLOYS
   NT  ALUMINUM ALLOYS
   NT  BARIUM ALLOYS
   NT  BERYLLIUM ALLOYS
   NT  BINARY ALLOYS
   NT  BISMUTH ALLOYS
   NT  BRAZING ALLOYS
   NT  CADMIUM ALLOYS
   NT  CALCIUM ALLOYS
   NT  CARBON ALLOYS
   NT  CASTING ALLOYS
   NT  CHROMIUM ALLOYS
   NT  COBALT ALLOYS
   NT  COPPER ALLOYS
   NT  CORROSION RESISTANT ALLOYS
   NT  GADOLINIUM ALLOYS
   NT  GALLIUM ALLOYS
   NT  GOLD ALLOYS
   NT  HAFNIUM ALLOYS
   NT  HEAT RESISTANT ALLOYS
   NT  HIGH STRENGTH ALLOYS
   NT  INDIUM ALLOYS
   NT  INTERMETALLIC COMPOUNDS
   NT  IRON ALLOYS
   NT  LEAD ALLOYS
   NT  LOW TEMPERATURE ALLOYS
   NT  MAGNESIUM ALLOYS
   NT  MAGNETIC ALLOYS
   NT  MANGANESE ALLOYS
   NT  MERCURY ALLOYS
   NT  METALLOID ALLOYS
   NT  METASTABLE ALLOYS
   NT  NEODYMIUM ALLOYS
   NT  NICKEL ALLOYS
   NT  PALLADIUM ALLOYS
   NT  PHOSPHORUS ALLOYS
   NT  PLATINUM ALLOYS
   NT  PLUTONIUM ALLOYS
   NT  POWDER ALLOYS
   NT  RARE EARTH ALLOYS
   NT  RHODIUM ALLOYS
   NT  SELENIUM ALLOYS
   NT  SHAPE MEMORY ALLOYS
   NT  SILVER ALLOYS
   NT  SOLDERING ALLOYS
   NT  STRONTIUM ALLOYS
   NT  THALLIUM ALLOYS
   NT  THORIUM ALLOYS
   NT  TIN ALLOYS
   NT  TITANIUM ALLOYS
   NT  URANIUM ALLOYS
   NT  VANADIUM ALLOYS
   NT  YTTRIUM ALLOYS
   NT  ZINC ALLOYS
   NT  ZIRCONIUM ALLOYS
   RT  METALS
   RT  SOLID SOLUTIONS

ALLUVIUM
   BT  SOILS
   RT  DELTAS
   RT  SEDIMENTARY ROCK
   RT  SEDIMENTS

ALLYL COMPOUNDS
SN: 01-APR-2006
   BT  PROPENES

ALMANACS
   BT  BOOKS

ALOPECIA
SN: 01-MAY-1983 - LOSS OF HAIR USUALLY FROM THE SCALP; MAYBE PARTIAL OR TOTAL, CONGENITAL, PREMATURE, OR SENILE; BALDNESS.
   BT  INTEGUMENTARY DISEASES

ALPHA BOMBARDMENT
   BT  PARTICLE ACCELERATOR TECHNIQUES

ALPHA CHAMBERS
   Use  ALPHA PARTICLE DETECTORS

ALPHA COUNTERS
   BT  PARTICLE COUNTERS
   BT  RADIATION MEASURING INSTRUMENTS

ALPHA CROSS SECTIONS
   BT  NUCLEAR CROSS SECTIONS

ALPHA DECAY
   BT  RADIOACTIVE DECAY

ALPHA GLOBULIN
   BT  SERUM GLOBULIN
   RT  HAPTOGLOBINS

ALPHA PARTICLE DETECTORS
   UF  ALPHA CHAMBERS
   BT  RADIATION MEASURING INSTRUMENTS

ALPHA PARTICLE REACTIONS
   BT  NUCLEAR REACTIONS

ALPHA PARTICLE SPECTROSCOPY
   BT  NUCLEAR RADIATION SPECTROSCOPY
   RT  ALPHA SPECTRA

ALPHA PARTICLES
   BT  CHARGED PARTICLES
   BT  CORPUSCULAR RADIATION
   BT  IONIZING RADIATION
   BT  NUCLEAR PARTICLES
   BT  NUCLEAR RADIATION

ALPHA SPECTRA
SN: THE DISTRIBUTION IN ENERGY OR MOMENTUM OF THE ALPHA PARTICLES EMITTED BY A RADIONUCLIDE.
   BT  PARTICLE SPECTRA
   RT  ALPHA PARTICLE SPECTROSCOPY

ALPHABETS
   NT  VOWELS
   RT  ALPHANUMERIC DATA

ALPHANUMERIC DATA
   BT  NUMBERS
   RT  ALPHABETS

ALPHANUMERIC DISPLAYS
   BT  DISPLAY SYSTEMS

ALTERNATING CURRENT
   BT  ELECTRIC CURRENT

ALTERNATORS
   BT  ELECTRIC GENERATORS

ALTIMETERS
   UF  ANEROID CHAMBERS
   BT  MEASURING INSTRUMENTS
   BT  NAVIGATIONAL AIDS
   NT  RADIO ALTIMETERS
   RT  ALTITUDE
   RT  BAROMETERS
   RT  FLIGHT INSTRUMENTS

ALTIMETRY
   Use  HEIGHT FINDING

ALTITUDE
   NT  ELEVATION
   NT  HIGH ALTITUDE
   NT  LOW ALTITUDE
   NT  MEDIUM ALTITUDE
   NT  SEA LEVEL
   RT  ALTIMETERS

ALTITUDE ACCLIMATIZATION
SN: 01-OCT-1991 - SLOW PHYSIOLOGICAL ADAPTATION RESULTING FROM PROLONGED EXPOSURE TO SIGNIFICANTLYREDUCED ATMOSPHERIC PRESSURE.
   BT  ACCLIMATIZATION

ALTITUDE CHAMBERS
   BT  CHAMBERS
   BT  TEST FACILITIES
   RT  SPACE SIMULATION CHAMBERS

ALTITUDE CONTROLLERS
   BT  FLIGHT CONTROL SYSTEMS

ALTITUDE SICKNESS
   BT  STRESS(PHYSIOLOGY)
   RT  AEROSPACE MEDICINE
   RT  DECOMPRESSION SICKNESS

ALUMINATES
   BT  ALUMINUM COMPOUNDS
   RT  KAOLINITE
   RT  SPINEL

ALUMINIDES
   BT  ALUMINUM COMPOUNDS
   NT  IRON ALUMINIDE
   NT  NICKEL ALUMINIDE
   NT  TITANIUM ALUMINIDE

ALUMINIZED EXPLOSIVES
   BT  EXPLOSIVES

ALUMINIZED PROPELLANTS
   BT  MONOPROPELLANTS

ALUMINIZING
   Use  ALUMINUM COATINGS

ALUMINOSILICATES
SN: 01-JUL-1999
   BT  ALUMINUM COMPOUNDS
   BT  SILICATES

ALUMINUM
   BT  METALS
   RT  ALUMINUM ALLOYS
   RT  ALUMINUM COMPOUNDS

ALUMINUM ALLOYS
   BT  ALLOYS
   RT  ALUMINUM
   RT  ALUMINUM COMPOUNDS

ALUMINUM ARSENIDES
   BT  ALUMINUM COMPOUNDS
   BT  ARSENIDES
   NT  ALUMINUM GALLIUM ARSENIDES

ALUMINUM COATINGS
   UF  ALUMINIZING
   BT  METAL COATINGS

ALUMINUM COMPOUNDS
   BT  GROUP III COMPOUNDS
   NT  ALUMINATES
   NT  ALUMINIDES
   NT  ALUMINOSILICATES
   NT  ALUMINUM ARSENIDES
   NT  ALUMINUM HYDRIDE
   NT  ALUMINUM LAURATE
   NT  ALUMINUM NITRIDES
   NT  ALUMINUM OXIDES
   NT  ALUMINUM SULFATE
   NT  CRYOLITE
   NT  TRIETHYLALUMINUM
   NT  TRIMETHYLALUMINUM
   RT  ALUMINUM
   RT  ALUMINUM ALLOYS

ALUMINUM FOIL
   BT  FOILS(MATERIALS)

ALUMINUM GALLIUM ARSENIDES
   BT  ALUMINUM ARSENIDES
   BT  GALLIUM ARSENIDES

ALUMINUM GALLIUM NITRIDES
SN: 01-APR-2004
   BT  ALUMINUM NITRIDES
   BT  GALLIUM NITRIDES

ALUMINUM HYDRIDE
SN: 01-APR-2007
   BT  ALUMINUM COMPOUNDS
   BT  HYDRIDES

ALUMINUM INTERMETALLICS
   BT  INTERMETALLIC COMPOUNDS

ALUMINUM LAURATE
   BT  ALUMINUM COMPOUNDS
   BT  ALUMINUM SOAPS
   BT  LAURATES

ALUMINUM NITRIDES
SN: 01-JAN-1999
   BT  ALUMINUM COMPOUNDS
   BT  NITRIDES
   NT  ALUMINUM GALLIUM NITRIDES

ALUMINUM OXIDES
   BT  ALUMINUM COMPOUNDS
   BT  OXIDES
   RT  CORUNDUM

ALUMINUM SOAPS
   BT  SOAPS
   NT  ALUMINUM LAURATE

ALUMINUM SULFATE
   BT  ALUMINUM COMPOUNDS
   BT  SULFATES

ALUMS
   BT  SULFATES

ALVEOLAR BONE
   BT  BONES

ALVEOLI
   BT  LUNG

ALZHEIMER DISEASE
SN: 01-JUN 1997
   BT  NERVOUS SYSTEM DISEASES

AMALGAMS
SN: 01-NOV-1980 - ALLOYS OF MERCURY.
   BT  MERCURY ALLOYS

AMATEX
   BT  EXPLOSIVES

AMATOL
   BT  AMMONIUM NITRATE
   BT  EXPLOSIVES
   BT  NITROTOLUENES

AMAZON RIVER
SN: 01-SEP-1981 - THE LARGEST RIVER IN THE WORLD--FLOWING FROM THE PERUVIAN ANDES, EAST THROUGH BRAZIL TO THE ATLANTIC.
   BT  RIVERS

AMBIENT NOISE
   BT  NOISE
   NT  BACKGROUND NOISE

AMBIGUITY
SN: 01-MAY-1983 - THE STATE OF BEING INDEFINITE, UNCERTAIN, NOT CLEAR. HAVING TWO OR MORE POSSIBLE MEANINGS.
   RT  INTELLIGIBILITY

AMBULANCES
   BT  RESCUE VEHICLES

AMBUSH
   BT  GUERRILLA WARFARE

AMEBIASIS
   BT  PARASITIC DISEASES

AMERICAN CIVIL WAR
   Use  CIVIL WAR(UNITED STATES)

AMERICAN INDIANS
SN: 01-NOV-1980 - MEMBERS OF THE ABORIGINAL RACE OF AMERICA OR OF THE ABORIGINAL NORTH AND SOUTH AMERICAN STOCKS, OFTEN EXCEPTING THE ESKIMOS.
   BT  ETHNIC GROUPS
   BT  MINORITIES

AMERICIUM
   BT  ACTINIDE SERIES
   BT  TRANSURANIUM ELEMENTS
   RT  AMERICIUM COMPOUNDS

AMERICIUM COMPOUNDS
   BT  TRANSURANIUM COMPOUNDS
   RT  AMERICIUM

AMIDE HYDROLASES
   BT  HYDROLASES
   NT  GLUTAMINASE
   NT  PENICILLINASE
   NT  UREASE

AMIDES
   BT  ORGANIC NITROGEN COMPOUNDS
   NT  ACETAMIDES
   NT  CYANAMIDES
   NT  FORMAMIDES
   NT  FORMAMIDINES
   NT  HYDANTOINS
   NT  OXAMIDES
   NT  SULFONAMIDES
   RT  IMIDES

AMIDINES
   BT  AMINES
   BT  IMINES

AMIDOMYCIN
   Use  ANTIBIOTICS

AMINE FUELS
   BT  FUELS

AMINES
   BT  ORGANIC NITROGEN COMPOUNDS
   NT  AMIDINES
   NT  ANILINES
   NT  CATECHOLAMINES
   NT  ETHANOLAMINE
   NT  ETHYLENEDIAMINE
   NT  FLUOROAMINES
   NT  GUANIDINES
   NT  HEXAMINES
   NT  HISTAMINE
   NT  MELAMINES
   NT  METHYLAMINE
   NT  METHYLENE BLUE
   NT  NITRAMINES
   NT  NITROSAMINES
   NT  PHENYLAMINES
   NT  PHENYLENEDIAMINES
   NT  PIPERAZINES
   NT  PIPERIDINES
   NT  PYRROLIDINES

AMINO ACIDS
   BT  ORGANIC ACIDS
   NT  ALANINES
   NT  ASPARTIC ACID
   NT  CREATINE
   NT  CYSTEINE
   NT  CYSTINE
   NT  FOLIC ACID
   NT  GLUTAMIC ACID
   NT  GLUTAMINE
   NT  GLUTARIC ACID
   NT  GLYCINE
   NT  HISTIDINE
   NT  LEUCINE
   NT  METHIONINE
   NT  PYRUVATES
   NT  SERINE
   NT  TRYPTOPHAN
   NT  TYROSINE
   RT  SIALIC ACIDS

AMINO PLASTICS
SN: PLASTICS MADE BY THE REACTION OF AN AMINE WITH AN ALDEHYDE.
   UF  AMINO RESINS
   UF  MELAMINE PLASTICS
   BT  THERMOSETTING PLASTICS

AMINO RESINS
   Use  AMINO PLASTICS

AMINOBENZOIC ACID(PARA)
   Use  VITAMIN B COMPLEX

AMINOPURINES
   Use  PURINES

AMINOTRANSFERASES
   BT  TRANSFERASES

AMMETERS
   BT  MEASURING INSTRUMENTS
   RT  COULOMETERS
   RT  ELECTRIC CURRENT

AMMINO COMPOUNDS
   BT  AMMONIUM COMPOUNDS
   BT  METAL COMPOUNDS

AMMONIA
   BT  NITROGEN COMPOUNDS
   NT  LIQUID AMMONIA

AMMONIUM COMPOUNDS
   BT  ORGANIC COMPOUNDS
   NT  AMMINO COMPOUNDS
   NT  AMMONIUM NITRATE
   NT  AMMONIUM PERCHLORATE
   NT  HEXAMETHONIUM COMPOUNDS

AMMONIUM NITRATE
   BT  AMMONIUM COMPOUNDS
   BT  NITRATES
   NT  AMATOL

AMMONIUM PERCHLORATE
   BT  AMMONIUM COMPOUNDS
   BT  PERCHLORATES

AMMONIUM PICRATE
   UF  EXPLOSIVE D
   BT  EXPLOSIVES

AMMUNITION
   BT  ORDNANCE
   NT  AIRCRAFT AMMUNITION
   NT  AMMUNITION COMPONENTS
   NT  ANTIAIRCRAFT AMMUNITION
   NT  ANTIARMOR AMMUNITION
   NT  ANTIMATERIEL AMMUNITION
   NT  ANTIPERSONNEL AMMUNITION
   NT  ANTISHIP AMMUNITION
   NT  ARTILLERY AMMUNITION
   NT  CARTRIDGES
   NT  CASELESS AMMUNITION
   NT  FIN STABILIZED AMMUNITION
   NT  FRAGMENTATION AMMUNITION
   NT  GRENADES
   NT  HIGH EXPLOSIVE AMMUNITION
   NT  INCENDIARY AMMUNITION
   NT  LINKLESS AMMUNITION
   NT  MORTAR AMMUNITION
   NT  PHOTOFLASH AMMUNITION
   NT  PROJECTILES
   NT  SMALL ARMS AMMUNITION
   NT  SPIN STABILIZED AMMUNITION
   NT  SPOTTING ROUNDS
   NT  TRACER AMMUNITION
   NT  TRAINING AMMUNITION
   NT  UNEXPLODED AMMUNITION
   RT  MAGAZINES(ORDNANCE)
   RT  WEAPONS

AMMUNITION BELT LINKS
   UF  LINKS (AMMUNITION BELT)
   BT  LINKAGES
   BT  ORDNANCE

AMMUNITION CASES
   BT  AMMUNITION CONTAINERS

AMMUNITION COMPONENTS
SN: COMPONENT PARTS OF AMMUNITION, EXCLUDINGPROJECTILES, FUZES, AND ARMING DEVICES.
   BT  AMMUNITION
   NT  AMMUNITION FRAGMENTS
   NT  BURSTING CHARGES
   NT  CARTRIDGE CASES
   NT  DEPTH CHARGE COMPONENTS
   NT  EXPLOSIVE TRAINS
   NT  FIRING MECHANISMS(AMMUNITION)
   NT  KILL MECHANISMS
   NT  POWDER BAGS
   NT  PROJECTILE COMPONENTS
   NT  ROTATING BANDS

AMMUNITION CONTAINERS
   BT  CONTAINERS
   NT  AMMUNITION CASES

AMMUNITION DAMAGE
   BT  DAMAGE

AMMUNITION FEED MECHANISMS
   BT  FEED MECHANISMS
   BT  GUN COMPONENTS
   RT  LOADING(ORDNANCE PROJECTORS)

AMMUNITION FRAGMENTS
   UF  SHRAPNEL
   BT  AMMUNITION COMPONENTS
   BT  FRAGMENTS

AMNESIA
SN: 01-NOV-1980 - LOSS OR IMPAIRMENT OF MEMORY; INABILITY TO RECALL PAST EXPERIENCES.
   BT  MENTAL DISORDERS
   NT  AMNESIC APHASIA
   RT  MEMORY(PSYCHOLOGY)
   RT  RECALL
   RT  RECOGNITION

AMNESIC APHASIA
SN: 01-NOV-1980 - LOSS OF MEMORY FOR THE APPROPRIATE NAMESOF OBJECTS, CONDITIONS OR RELATIONS; ACCOMPANIED BY FRAGMENTED OR HESITANT SPEECH.
   BT  AMNESIA
   BT  APHASIA

AMNIOCENTESIS
SN: 01-OCT-1999
   BT  PRENATAL DIAGNOSIS
   RT  FETUS

AMOEBA
   BT  AMOEBINA
   NT  ENTAMOEBA HISTOLYTICA
   NT  IODAMOEBA

AMOEBIC DYSENTERY
   Use  DYSENTERY

AMOEBINA
   BT  RHIZOPODA
   NT  AMOEBA

AMORPHOUS MATERIALS
   BT  MATERIALS

AMORTIZATION
   BT  FINANCE

AMPHETAMINES
   UF  DEOXYEPHEDRINE
   UF  DESOXYEPHEDRINE
   UF  DEXTROAMPHETAMINE SULFATE
   UF  METHAMPHETAMINE
   UF  PAREDRINE
   UF  PERVITIN
   BT  SYMPATHOMIMETIC AGENTS

AMPHIBIANS
   UF  BATRACHIA
   UF  NEWTS
   UF  SALAMANDERS
   UF  TOADS
   BT  VERTEBRATES
   NT  FROGS

AMPHIBIOUS AIRCRAFT
   BT  aircraft
   NT  FLYING BOATS
   NT  SEAPLANES

AMPHIBIOUS ASSAULT SHIPS
   BT  AMPHIBIOUS SHIPS

AMPHIBIOUS OPERATIONS
   BT  MILITARY OPERATIONS
   NT  BEACH HEADS
   RT  LANDING FORCES
   RT  SEAL TEAMS

AMPHIBIOUS SHIPS
   BT  NAVAL VESSELS(COMBATANT)
   NT  AMPHIBIOUS ASSAULT SHIPS

AMPHIBIOUS VEHICLES
   BT  VEHICLES
   RT  LANDING CRAFT

AMPHOTERIC
SN: HAVING BOTH ACIDIC AND BASIC CHARACTERISTICS.
   BT  CHEMICAL PROPERTIES

AMPHOTERICIN
   BT  FUNGICIDES

AMPLIDYNES
   BT  ELECTRIC GENERATORS
   RT  POWER AMPLIFIERS

AMPLIFICATION
   NT  IMAGE INTENSIFICATION
   NT  REGENERATION(ELECTRONICS)
   RT  MAGNIFICATION

AMPLIFIERS
   NT  AUDIO AMPLIFIERS
   NT  BANDPASS AMPLIFIERS
   NT  CATHODE FOLLOWERS
   NT  CURRENT AMPLIFIERS
   NT  DIELECTRIC AMPLIFIERS
   NT  DISTRIBUTED AMPLIFIERS
   NT  FEEDBACK AMPLIFIERS
   NT  FLUID AMPLIFIERS
   NT  LIGHT AMPLIFIERS
   NT  LOGARITHMIC AMPLIFIERS
   NT  LOW NOISE AMPLIFIERS
   NT  MAGNETIC AMPLIFIERS
   NT  OPERATIONAL AMPLIFIERS
   NT  POWER AMPLIFIERS
   NT  PREAMPLIFIERS
   NT  PULSE AMPLIFIERS
   NT  PUSH PULL AMPLIFIERS
   NT  RADIOFREQUENCY AMPLIFIERS
   NT  SERVOAMPLIFIERS
   NT  TRANSISTOR AMPLIFIERS
   NT  TUNED AMPLIFIERS
   NT  VIDEO AMPLIFIERS
   NT  VOLTAGE AMPLIFIERS
   RT  KLYSTRONS

AMPLITUDE
   BT  INTENSITY

AMPLITUDE MODULATION
   BT  MODULATION
   RT  PULSE MODULATION

AMPULES
   BT  CONTAINERS

AMPUTATION
   BT  EXCISION
   RT  AMPUTATION STUMPS
   RT  AMPUTEES

AMPUTATION STUMPS
   RT  AMPUTATION

AMPUTEES
   BT  CASUALTIES
   RT  AMPUTATION
   RT  ARTIFICIAL LIMBS

AMUSEMENT
   Use  RECREATION

AMYLASES
   Use  GLYCOSIDE HYDROLASES

AMYLOIDOSIS
   Use  METABOLIC DISEASES

ANAEROBIC BACTERIA
   BT  BACTERIA
   RT  ANAEROBIC PROCESSES
   RT  SARCINA

ANAEROBIC PROCESSES
   RT  ANAEROBIC BACTERIA

ANALEPTICS
   Use  CNS STIMULANTS

ANALGESIA
   BT  THERAPY
   RT  ANALGESICS
   RT  PAIN

ANALGESICS
   UF  ACETOPHENETIDIN
   BT  DRUGS
   NT  ENDORPHINS
   RT  ANALGESIA

ANALOG COMPUTER ANALYSIS
   BT  ANALOG COMPUTERS

ANALOG COMPUTERS
   BT  ANALOG SYSTEMS
   BT  COMPUTERS
   NT  ANALOG COMPUTER ANALYSIS

ANALOG SIGNALS
   BT  SIGNALS

ANALOG SIMULATION
   BT  COMPUTERIZED SIMULATION

ANALOG SYSTEMS
   NT  ANALOG COMPUTERS
   RT  DIGITAL SYSTEMS

ANALOG TO DIGITAL CONVERTERS
   UF  DIGITIZERS
   BT  CONVERTERS
   BT  INPUT OUTPUT DEVICES

ANALOGIES
   BT  SEMANTICS

ANALYSIS OF VARIANCE
   UF  VARIANCE ANALYSIS
   BT  STATISTICAL ANALYSIS
   NT  BIVARIATE ANALYSIS

ANALYSTS
   BT  PERSONNEL

ANALYTIC FUNCTIONS
   BT  COMPLEX VARIABLES
   BT  FUNCTIONS(MATHEMATICS)
   RT  POWER SERIES

ANALYTIC GEOMETRY
   BT  GEOMETRY
   NT  CIRCLES
   NT  ELLIPSES
   NT  HYPERBOLAS
   NT  LOCUS
   NT  PARABOLAS

ANALYTIC NUMBER THEORY
SN: 01-DEC-1984 - THE STUDY OF PROBLEMS CONCERNING THE DISCRETE DOMAIN OF INTEGERS BY MEANS OF THEMATHEMATICS OF CONTINUITY.
   BT  NUMBER THEORY

ANALYTICAL CHEMISTRY
   BT  CHEMISTRY
   NT  COMPUTATIONAL CHEMISTRY
   RT  CHEMICAL ANALYSIS

ANALYZERS
   NT  DIFFERENTIAL ANALYZERS
   NT  ELECTROSTATIC ANALYZERS
   NT  FREQUENCY ANALYZERS
   NT  INTERFERENCE ANALYZERS
   NT  NOISE ANALYZERS
   NT  PULSE ANALYZERS
   NT  SOUND ANALYZERS
   NT  SPECTRUM ANALYZERS
   NT  WAVE ANALYZERS
   RT  DETECTORS
   RT  MONITORS

ANAPHYLATOXINS
   BT  TOXINS

ANAPHYLAXIS
   BT  ALLERGIC DISEASES
   BT  ANTIGEN ANTIBODY REACTIONS

ANASTOMOSIS
   BT  CARDIOVASCULAR SYSTEM

ANATOMICAL MODELS
   BT  MODELS

ANATOMY
   BT  BIOLOGY
   BT  MEDICINE
   NT  ABDOMEN
   NT  BODY FLUIDS
   NT  CARDIOVASCULAR SYSTEM
   NT  CEREBROVASCULAR SYSTEM
   NT  DIGESTIVE SYSTEM
   NT  EXTREMITIES
   NT  FISTULAS
   NT  HEAD(ANATOMY)
   NT  HIP
   NT  HUMAN BODY
   NT  INTEGUMENTARY SYSTEM
   NT  MUSCULOSKELETAL SYSTEM
   NT  NECK(ANATOMY)
   NT  NERVOUS SYSTEM
   NT  ORGANS(ANATOMY)
   NT  REPRODUCTIVE SYSTEM
   NT  RESPIRATORY SYSTEM
   NT  SHEATHS(ANATOMY)
   NT  SHOULDERS(ANATOMY)
   NT  THORAX
   NT  URINARY SYSTEM

ANCHOR CHAINS
   BT  CHAINS

ANCHORS
   NT  ANCHORS(MARINE)
   NT  ANCHORS(STRUCTURAL)
   NT  GRAPNELS

ANCHORS(MARINE)
   UF  SHIP ANCHORS
   BT  ANCHORS
   RT  MOORING

ANCHORS(STRUCTURAL)
   UF  GROUND ANCHORS
   UF  GUY STAKES
   UF  STAKES
   BT  ANCHORS
   BT  STRUCTURAL COMPONENTS
   RT  GUY WIRES

ANCYLOSTOMA
SN: is a genus that includes some species of hookworm.
   BT  NEMATODA

ANDROGENS
   BT  SEX HORMONES

ANECHOIC CHAMBERS
   BT  ACOUSTIC EQUIPMENT
   BT  CHAMBERS
   BT  TEST FACILITIES

ANEMIAS
   BT  BLOOD DISEASES
   NT  SICKLE CELL ANEMIA

ANEMOMETERS
   UF  GLOW ANEMOMETERS
   UF  WIND GAGES
   BT  MEASURING INSTRUMENTS
   NT  HOT WIRE ANEMOMETERS
   NT  LASER ANEMOMETERS
   RT  AIRSPEED INDICATORS
   RT  WIND VELOCITY

ANEROID CHAMBERS
   Use  ALTIMETERS

ANESTHESIA
   BT  ANESTHESIOLOGY
   NT  ELECTROANESTHESIA
   RT  ANESTHESIOLOGISTS

ANESTHESIOLOGISTS
   BT  MEDICAL PERSONNEL
   RT  ANESTHESIA
   RT  ANESTHESIOLOGY

ANESTHESIOLOGY
SN: The branch of medical science that studies and applies anesthetics. (July 2011)
   BT  MEDICINE
   NT  ANESTHESIA
   RT  ANESTHESIOLOGISTS

ANESTHETICS
SN: AGENTS THAT PRODUCE LOCAL OR GENERAL INSENSIBILITY TO PAIN, TOUCH, OR OTHER STIMULI. GENERAL ANESTHETICS PRODUCE LOSS OF ALL MODALITIES OF SENSATION AND ALSO OF CONSCIOUSNESS.
   BT  DRUGS
   NT  BARBITURATES
   NT  CHLORALOSE
   NT  CHLOROFORM
   NT  LOCAL ANESTHETICS
   RT  ETHERS

ANGIOGENESIS
SN: 01-JUL-2007 - DEVELOPMENT OF BLOOD VESSELS.
   BT  GROWTH(PHYSIOLOGY)
   RT  BLOOD VESSELS

ANGIOGRAPHY
   BT  RADIOGRAPHY

ANGIOTENSIN
SN: 01-MAY-1983 - AN OCTAPEPTIDE, PRODUCED IN CIRCULATING PLASMA BY INTERACTION OF THE ENZYME RENIN AND THE ALPHA GLOBULIN ANGIOTENSINOGEN. IT APPEARS TO BE THE PRESSOR VASCOCONSTRICTOR AND ALDOSTERONE-STIMULATING COMPONENT OF THE RENAL PRESSOR SYSTEM.
   UF  ANGIOTONIN
   UF  HYPERTENSIN

ANGIOTONIN
   Use  ANGIOTENSIN

ANGLE BARS
   BT  STRUCTURAL COMPONENTS

ANGLE OF ARRIVAL
SN: THE ANGLE BETWEEN THE LINE OF PROPAGATION OF ELECTROMAGNETIC WAVES AND THE EARTH'S SURFACE AT THE POINT OF RECEPTION.
   BT  ANGLE OF INCIDENCE
   BT  ARRIVAL

ANGLE OF ATTACK
   BT  ATTACK

ANGLE OF ATTACK INDICATORS
   BT  INDICATORS
   RT  STALL WARNING INDICATORS

ANGLE OF INCIDENCE
SN: 01-SEP-1981 - THE ANGLE FORMED BY A RAY ARRIVING AT A SURFACE AND THE PERPENDICULAR TO THAT SURFACE AT THE POINT OF ARRIVAL.
   BT  ANGLES
   NT  ANGLE OF ARRIVAL
   NT  GRAZING ANGLES

ANGLES
   NT  ANGLE OF INCIDENCE
   NT  ANHEDRAL ANGLE
   NT  ASPECT ANGLE
   NT  BRAGG ANGLE
   NT  DEPRESSION ANGLES
   NT  DIHEDRAL ANGLE
   NT  EULER ANGLES
   NT  HIGH ANGLES
   NT  LOW ANGLES
   NT  PITCH(INCLINATION)
   NT  RAKE ANGLES
   NT  RIGHT ANGLES
   NT  TARGET ANGLE
   NT  WIDE ANGLES
   NT  YAW
   RT  GEOMETRY

ANGOLA
   BT  SUBSAHARAN AFRICA

ANGULAR ACCELERATION
   BT  ACCELERATION
   RT  CENTRIFUGAL FORCE

ANGULAR MOMENTUM
   BT  MOMENTUM
   RT  MOMENT OF INERTIA

ANGULAR MOTION
   BT  MOTION
   NT  ROLL
   NT  ROTATION
   NT  SPINNING(MOTION)
   NT  TUMBLING
   NT  TWIST(MOTION)

ANHALONIUM ALKALOIDS
   UF  MESCALINE
   UF  PEYOTE
   BT  ISOQUINOLINE ALKALOIDS

ANHARMONIC OSCILLATORS
   BT  OSCILLATORS

ANHEDRAL ANGLE
   BT  ANGLES

ANHYDRIDES
   NT  ACETIC ANHYDRIDE

ANILINES
   BT  AMINES
   NT  POLYANILINES
   NT  TOLUIDINES

ANIMAL COMMUNICATION
   BT  BEHAVIOR

ANIMAL DISEASES
   BT  DISEASES
   NT  VETERINARY DISEASES

ANIMAL HUSBANDRY
   BT  AGRICULTURE

ANIMAL MIGRATION
   BT  MIGRATION

ANIMAL PIGMENTS
   Use  ORGANIC PIGMENTS

ANIMAL STARCH
   Use  GLYCOGEN

ANIMALS
   NT  AQUATIC ANIMALS
   NT  DOMESTIC ANIMALS
   NT  INVERTEBRATES
   NT  LABORATORY ANIMALS
   NT  NOCTURNAL ANIMALS
   NT  VENOMOUS ANIMALS
   NT  VERTEBRATES
   RT  FUR
   RT  HABITATS
   RT  WILDLIFE

ANION EXCHANGE
   Use  ION EXCHANGE

ANIONS
   BT  IONS

ANISOLE
   BT  ARYL ETHERS

ANISOTROPY
   BT  PHYSICAL PROPERTIES
   RT  SPATIAL DISTRIBUTION

ANNEALING
   BT  HEAT TREATMENT
   RT  TEMPERING

ANNELIDA
   UF  HIRUDINEA
   UF  LEECHES
   UF  SEGMENTED WORMS
   BT  WORMS
   NT  OLIGOCHAETA
   NT  POLYCHAETA

ANNIHILATION RADIATION
   BT  ANNIHILATION REACTIONS

ANNIHILATION REACTIONS
   BT  PHOTONUCLEAR REACTIONS
   NT  ANNIHILATION RADIATION

ANNOTININE
   Use  ALKALOIDS

ANNOUNCEMENT BULLETINS
SN: 01-JUN-1989 - PERIODIC PUBLICATIONS FROM INFORMATION CENTERS PROVIDING DATA ON CURRENT LITERATURE.
   BT  BIBLIOGRAPHIES
   NT  TAB(DTIC)

ANNULAR BURNERS
   BT  BURNERS

ANNULAR FLOW
SN: 01-DEC-1984 - RING SHAPED FLOW; FLOW FROM AN ANNULAR NOZZLE.
   BT  AXISYMMETRIC FLOW

ANNULAR NOZZLES
   BT  NOZZLES

ANNULAR WINGS
   Use  RING WINGS

ANODES
   BT  ELECTRODES
   NT  ANODES(ELECTROLYTIC CELL)
   NT  ANODES(ELECTRON TUBES)

ANODES(ELECTROLYTIC CELL)
   BT  ANODES

ANODES(ELECTRON TUBES)
   BT  ANODES
   BT  ELECTRON TUBE COMPONENTS

ANODIC COATINGS
   BT  COATINGS
   BT  PROTECTIVE TREATMENTS

ANODIC POLARIZATION
   BT  POLARIZATION

ANOMALIES
   UF  SITUS INVERSUS (VISCERA)
   NT  GRAVITY ANOMALIES
   NT  MAGNETIC ANOMALIES

ANOPHELES
   BT  CULICIDAE

ANOPLURA
   Use  LICE

ANOREXIA
   BT  NEUROSES

ANTACIDS
   BT  DRUGS

ANTARCTIC REGIONS
   BT  COLD REGIONS
   NT  ROSS SEA

ANTENNA APERTURES
   BT  APERTURES
   NT  ANTENNA WINDOWS

ANTENNA ARRAYS
   BT  ANTENNAS
   BT  ARRAYS
   NT  FOCAL PLANE ARRAYS
   RT  ACOUSTIC ARRAYS
   RT  PHASED ARRAYS

ANTENNA COMPONENTS
SN: CIRCUITS, DEVICES, AND HARDWARE FOR ALL TYPES OF ANTENNAS.
   UF  ANTENNA HARDWARE
   BT  ANTENNAS
   NT  ANTENNA FEEDS
   NT  ANTENNA MASTS
   NT  ANTENNA PEDESTALS

ANTENNA CONFIGURATIONS
SN: ANTENNAS DISTINGUISHED BY SPECIAL DESIGNCHARACTERISTICS.
   BT  CONFIGURATIONS

ANTENNA COUPLERS
SN: 01-SEP-1981 - ANY RF TRANSFORMER, TUNED LINE OR OTHER DEVICE THAT TRANSFERS ENERGY EFFICIENTLYFROM A TRANSMISSION LINE TO A RECEIVER
   BT  COUPLERS

ANTENNA FEEDS
   UF  ANTENNA HORNS
   UF  HORNS (ANTENNA)
   BT  ANTENNA COMPONENTS
   RT  TRANSMISSION LINES

ANTENNA FIELDS
   Use  ANTENNA RADIATION PATTERNS

ANTENNA HARDWARE
   Use  ANTENNA COMPONENTS

ANTENNA HORNS
   Use  ANTENNA FEEDS

ANTENNA LOBES
   UF  LOBING
   BT  ANTENNA RADIATION PATTERNS
   NT  BACKLOBES
   NT  SIDELOBES

ANTENNA MASTS
   BT  ANTENNA COMPONENTS
   BT  MASTS

ANTENNA PEDESTALS
   BT  ANTENNA COMPONENTS

ANTENNA RADIATION PATTERNS
   UF  ANTENNA FIELDS
   BT  RADIATION PATTERNS
   NT  ANTENNA LOBES
   NT  NULLS(AMPLITUDE)
   NT  RADAR FANS
   RT  ANTENNAS

ANTENNA SIMULATORS
   BT  SIMULATORS

ANTENNA WINDOWS
   BT  ANTENNA APERTURES
   RT  GUIDED MISSILE WINDOWS

ANTENNAS
   NT  AIRCRAFT ANTENNAS
   NT  ANTENNA ARRAYS
   NT  ANTENNA COMPONENTS
   NT  BEVERAGE ANTENNAS
   NT  BROADBAND ANTENNAS
   NT  CIRCULAR ANTENNAS
   NT  CONFORMAL ANTENNAS
   NT  COUPLED ANTENNAS
   NT  CYLINDRICAL ANTENNAS
   NT  DIPOLE ANTENNAS
   NT  DIRECTIONAL ANTENNAS
   NT  GROUND VEHICLE ANTENNAS
   NT  GUIDED MISSILE ANTENNAS
   NT  MICROWAVE ANTENNAS
   NT  MULTIPLE BEAM ANTENNAS
   NT  OMNIDIRECTIONAL ANTENNAS
   NT  ROCKET ANTENNAS
   NT  ROTATING ANTENNAS
   NT  SHIP ANTENNAS
   NT  SPACECRAFT ANTENNAS
   NT  TELEMETERING ANTENNAS
   NT  TELEVISION ANTENNAS
   NT  TRAILING WIRE ANTENNAS
   NT  UNDERGROUND ANTENNAS
   NT  UNFURLABLE ANTENNAS
   RT  ANTENNA RADIATION PATTERNS

ANTHELMINTICS
   UF  antihelminthics
   UF  VERMIFUGES
   BT  ANTIPARASITIC DRUGS
   NT  ANTISCHISTOSOMAL DRUGS
   NT  ARECOLINE
   RT  FILARIAE

ANTHOXANTHIN PIGMENTS
   UF  BIOFLAVONOIDS
   UF  FLAVANOL
   UF  FLAVINS
   UF  FLAVONES
   UF  FLAVONONES
   UF  XANTHONES
   BT  ORGANIC PIGMENTS

ANTHRACENES
   BT  AROMATIC HYDROCARBONS
   RT  PHENANTHRENES

ANTHRACITE
SN: 01-MAY-1983 - A HIGH-GRADE METAMORPHIC COAL HAVING A SEMI-METALLIC LUSTER, HIGH CONTENT OF FIXED CARBON, AND HIGH DENSITY; AND BURNINGWITH A SHORT BLUE FLAME AND LITTLE SMOKE OR ODOR.
   UF  HARD COAL
   UF  KILKENNY COAL
   UF  STONE COAL
   BT  COAL
   BT  SEDIMENTARY ROCK

ANTHRANILIC ACID
   BT  BENZOIC ACIDS

ANTHRAQUINONES
   BT  QUINONES
   NT  CARMINIC ACID

ANTHRAX
SN: 01-MAY-1983 - AN ACUTE INFECTIOUS DISEASE OF CATTLE AND SHEEP, TRANSMISSIBLE TO MAN AND CAUSEDBY BACILLUS ANTHRACIS.
   BT  BACTERIAL DISEASES
   RT  BACILLUS ANTHRACIS

ANTHRAX BACILLUS
   Use  BACILLUS ANTHRACIS

ANTHRONES
   BT  KETONES

ANTHROPOLOGY
   UF  ETHNOLOGY
   BT  SOCIAL SCIENCES
   NT  ANTHROPOMETRY
   NT  ETHNIC GROUPS
   NT  ETHNOGRAPHY
   NT  RACE(ANTHROPOLOGY)

ANTHROPOMETRY
SN: SCIENCE OF MEASURING THE HUMAN BODY AND ITS PARTS AND FUNCTIONAL CAPACITIES.
   BT  ANTHROPOLOGY
   BT  MEASUREMENT
   NT  BIOMETRIC SECURITY
   NT  CEPHALOMETRY

ANTI-AUXINS
   Use  HERBICIDES

ANTIAIRCRAFT AMMUNITION
   BT  AMMUNITION
   RT  ANTIAIRCRAFT WEAPONS

ANTIAIRCRAFT DEFENSE SYSTEMS
   BT  AIR DEFENSE
   NT  GUN AIR DEFENSE SYSTEMS
   RT  ANTIAIRCRAFT GUNNERY

ANTIAIRCRAFT FIRE
   Use  ANTIAIRCRAFT GUNNERY

ANTIAIRCRAFT FIRE CONTROL SYSTEMS
   BT  FIRE CONTROL SYSTEMS
   RT  AIRCRAFT FIRE CONTROL SYSTEMS
   RT  ANTIAIRCRAFT GUNNERY

ANTIAIRCRAFT GUNNERY
   UF  ANTIAIRCRAFT FIRE
   BT  GUNNERY
   RT  ANTIAIRCRAFT DEFENSE SYSTEMS
   RT  ANTIAIRCRAFT FIRE CONTROL SYSTEMS

ANTIAIRCRAFT GUNS
   BT  ANTIAIRCRAFT WEAPONS
   BT  GUNS

ANTIAIRCRAFT MISSILES
   BT  ANTIAIRCRAFT WEAPONS
   BT  GUIDED MISSILES
   RT  AIR TO AIR MISSILES
   RT  SURFACE TO AIR MISSILES

ANTIAIRCRAFT WEAPONS
   BT  WEAPONS
   NT  ANTIAIRCRAFT GUNS
   NT  ANTIAIRCRAFT MISSILES
   RT  ANTIAIRCRAFT AMMUNITION

ANTIARMOR AMMUNITION
SN: AMMUNITION DESIGNED TO DEFEAT ARMORED TARGETS, ESPECIALLY BY PIERCING OR PRODUCING SPALLING.
   BT  AMMUNITION
   NT  ANTITANK AMMUNITION
   NT  ARMOR PIERCING AMMUNITION

ANTIBACTERIAL SERUMS
   Use  IMMUNE SERUMS

ANTIBIOTICS
   UF  AMIDOMYCIN
   UF  FUMAGILLIN
   BT  CHEMOTHERAPEUTIC AGENTS
   NT  CHLORAMPHENICOL
   NT  ERYTHROMYCIN
   NT  FUNGICIDES
   NT  JOSAMYCIN
   NT  NEOMYCINS
   NT  PENICILLINS
   NT  POLYMYXINS
   NT  SODIUM CEPHALOTHIN
   NT  SODIUM COLISTIMETHATE
   NT  STREPTOMYCINS
   NT  SULFADIAZINE
   NT  SULFONAMIDES
   NT  TETRACYCLINES
   NT  VANCOMYCIN

ANTIBODIES
   UF  PRECIPITINS
   BT  IMMUNOGENS
   NT  AGGLUTININS
   NT  FLUORESCENT ANTIBODY TECHNIQUES
   NT  IMMUNOBLOCKING ANTIBODIES
   NT  IMMUNOGLOBULINS
   NT  MONOCLONAL ANTIBODIES
   NT  POLYCLONAL ANTIBODIES
   NT  RICKETTSIAL ANTIBODIES
   RT  GAMMA GLOBULIN

ANTICHOLINERGIC AGENTS
   Use  PARASYMPATHOLYTIC AGENTS

ANTICHOLINESTERASES
   Use  CHOLINESTERASE INHIBITORS

ANTICOAGULANTS
   UF  HEPARIN SUBSTITUTES
   BT  DRUGS
   NT  HEPARIN
   RT  COUMARINS

ANTICONVULSANTS
   UF  ANTIEPILEPTIC AGENTS
   BT  DRUGS
   RT  BARBITURATES

ANTICROP AGENTS
   BT  HERBICIDES

ANTICYCLONES
   BT  ATMOSPHERIC MOTION

ANTIDEPRESSANTS
SN: A psychiatric medication used to alleviate mood disorders, such as major depression and dysthymia and anxiety disorders such as social anxiety disorder. (March 2011)
   UF  monoamine oxidase inhibitors
   UF  selective serotonin reuptake inhibitors
   UF  serotonin–norepinephrine reuptake inhibitors
   UF  tetracyclic antidepressants
   UF  tricyclic antidepressants
   BT  DRUGS
   RT  DEPRESSION

ANTIDISTURBANCE DEVICES
   BT  COUNTERMEASURES

ANTIDIURETICS
   BT  DRUGS

ANTIDOTES
   RT  ANTITOXINS
   RT  INHIBITORS

ANTIEMETICS
   UF  ANTINAUSEANTS
   UF  MOTION SICKNESS DRUGS
   BT  DRUGS
   RT  NAUSEA

ANTIEPILEPTIC AGENTS
   Use  ANTICONVULSANTS

ANTIFERROELECTRICITY
   BT  ELECTRICITY

ANTIFERROMAGNETISM
   BT  MAGNETIC PROPERTIES
   RT  FERROMAGNETISM

ANTIFOAM AGENTS
   Use  FOAMING INHIBITORS

ANTIFOGGING AGENTS
   BT  INHIBITORS

ANTIFOGGING DEVICES
   BT  SAFETY EQUIPMENT

ANTIFOULING
   RT  CLEANING

ANTIFOULING COATINGS
   BT  PROTECTIVE COATINGS
   RT  TRIBUTYL TIN

ANTIFREEZES
   BT  ADDITIVES

ANTIFRICTION BEARINGS
   UF  ROLLING CONTACT BEARINGS
   BT  BEARINGS
   NT  BALL BEARINGS
   NT  GAS BEARINGS
   NT  MAGNETIC BEARINGS
   NT  ROLLER BEARINGS

ANTIFUNGAL AGENTS
   Use  FUNGICIDES

ANTIGEN ANTIBODY REACTIONS
   UF  SHWARTZMAN PHENOMENON
   BT  IMMUNOLOGY
   NT  AGGLUTINATION
   NT  ANAPHYLAXIS
   RT  FLUORESCENT ANTIBODY TECHNIQUES

ANTIGENS
   UF  AGGLUTINOGENS
   UF  BACTEROLYSINS
   UF  HAPTENS
   UF  PRECIPITINOGENS
   BT  IMMUNOGENS
   NT  ALLERGENS
   NT  COCCIDIOIDIN
   NT  TUBERCULIN
   RT  OPSONINS
   RT  VACCINES

antihelminthics
   Use  ANTHELMINTICS

ANTIHEMOPHILIA
   BT  CLINICAL MEDICINE
   RT  HEMOPHILIA

ANTIHISTAMINICS
   UF  HISTAMINE ANTAGONISTS
   BT  DRUGS
   RT  HISTAMINE

ANTIHYPOTENSIVE DRUGS
   BT  DRUGS
   RT  RESERPINE

ANTIINFLAMMATORY AGENTS
SN: 01-MAY-1983 - A SUBSTANCE SUCH AS CORTISONE, THAT COUNTERACTS INFLAMMATION.
   BT  DRUGS

ANTIINTRUSION DEVICES
   BT  AREA SECURITY
   RT  INTRUSION DETECTORS

ANTIJAMMING
   BT  ELECTRONIC COUNTER COUNTERMEASURES
   NT  RADAR ANTIJAMMING
   NT  RADIO ANTIJAMMING

ANTIKNOCK
   BT  COMBUSTION
   NT  CETANE NUMBER

ANTILEISHMANIAL DRUGS
SN: DRUGS/AGENTS EFFECTIVE AGAINST LEISHMANIA.
   BT  ANTIPARASITIC DRUGS

ANTILYMPHOCYTE SERUM
   BT  BLOOD SERUM

ANTIMALARIALS
   BT  ANTIPARASITIC DRUGS
   NT  CHLOROQUINE
   NT  PRIMAQUINE
   NT  QUININE
   NT  SULFADIAZINE
   RT  MALARIA

ANTIMATERIEL AGENTS
   BT  CHEMICAL AGENTS

ANTIMATERIEL AMMUNITION
   BT  AMMUNITION

ANTIMETABOLITES
SN: SUBSTANCES HAVING A MOLECULAR STRUCTURE SIMILAR TO AN ESSENTIAL METABOLITE BUT INHIBITING OR OPPOSING ITS ACTION.
   UF  BIOLOGICAL ANTAGONISTS
   UF  COMPETITIVE ANTAGONISTS
   UF  ENZYME ANTAGONISTS
   UF  FOLIC ACID ANTAGONISTS
   UF  METABOLISM INHIBITORS
   BT  CHEMOTHERAPEUTIC AGENTS
   NT  METHOTREXATE

ANTIMICROBIAL AGENTS
   BT  CHEMOTHERAPEUTIC AGENTS

ANTIMISSILE DEFENSE SYSTEMS
   BT  AIR DEFENSE
   NT  BALLISTIC MISSILE INTERCEPT SYSTEMS
   NT  MIDCOURSE DEFENSE
   NT  THEATER MISSILE DEFENSE
   RT  GUIDED MISSILE COUNTERMEASURES
   RT  GUIDED MISSILE DETECTION

ANTIMONATES
   BT  ANTIMONY COMPOUNDS

ANTIMONIDES
   BT  ANTIMONY COMPOUNDS
   NT  GALLIUM ANTIMONIDES
   NT  INDIUM ANTIMONIDES

ANTIMONY
   BT  METALS
   RT  ANTIMONY ALLOYS
   RT  ANTIMONY COMPOUNDS

ANTIMONY ALLOYS
   BT  METALLOID ALLOYS
   RT  ANTIMONY

ANTIMONY COMPOUNDS
   BT  GROUP V COMPOUNDS
   NT  ANTIMONATES
   NT  ANTIMONIDES
   RT  ANTIMONY

ANTINAUSEANTS
   Use  ANTIEMETICS

ANTINEOPLASTIC AGENTS
SN: PHARMACEUTICAL AGENTS WHICH INHIBIT THE GROWTH OF NEOPLASMS. (JAN 2000)
   BT  CHEMOTHERAPEUTIC AGENTS
   NT  HYPNOTICS AND SEDATIVES
   NT  LEUROCRISTIN
   NT  METHOTREXATE
   RT  NEOPLASMS

ANTIORDNANCE RADAR
SN: 01-APR-2005
   BT  ORDNANCE LOCATORS
   BT  SEARCH RADAR
   NT  MORTAR LOCATOR RADAR

ANTIOXIDANTS
   UF  INHIBITORS(OXIDATION)
   UF  OXIDATION INHIBITORS
   BT  ADDITIVES
   RT  CORROSION INHIBITION

ANTIPARASITIC DRUGS
   BT  CHEMOTHERAPEUTIC AGENTS
   NT  ANTHELMINTICS
   NT  ANTILEISHMANIAL DRUGS
   NT  ANTIMALARIALS
   NT  TRYPANOCIDES

ANTIPARASYMPATHOMIMETIC AGENTS
   Use  PARASYMPATHOLYTIC AGENTS

ANTIPARKINSON AGENTS
   Use  PARASYMPATHOLYTIC AGENTS

ANTIPARTICLES
   BT  ELEMENTARY PARTICLES
   NT  ANTIPROTONS
   NT  POSITRONS
   RT  POSITRONIUM

ANTIPERSONNEL AGENTS
   BT  CHEMICAL WARFARE AGENTS
   NT  CHOKING AGENTS
   NT  INCAPACITATING AGENTS
   NT  NERVE AGENTS
   NT  VESICANTS

ANTIPERSONNEL AMMUNITION
   BT  AMMUNITION
   BT  ANTIPERSONNEL WEAPONS
   NT  ANTIPERSONNEL MINES
   NT  CANISTER PROJECTILES

ANTIPERSONNEL EFFECTS
   BT  WEAPONS EFFECTS

ANTIPERSONNEL MINES
   BT  ANTIPERSONNEL AMMUNITION
   BT  LAND MINES

ANTIPERSONNEL WEAPONS
   BT  WEAPONS
   NT  ANTIPERSONNEL AMMUNITION
   NT  BOOBY TRAPS

ANTIPEST IMPREGNANTS
   Use  PESTICIDES

ANTIPLATELET DRUGS
   BT  DRUGS
   RT  BLOOD PLATELETS

ANTIPROTONS
   UF  NEGATIVE PROTONS
   BT  ANTIPARTICLES
   BT  CHARGED PARTICLES
   BT  NUCLEONS

ANTIPYRETICS
   BT  DRUGS
   RT  FEVERS

ANTIRADAR COATINGS
SN: COATINGS OR STRUCTURES THAT ABSORB RADARSIGNALS.
   BT  ANTIREFLECTION COATINGS
   RT  AIRCRAFT FINISHES
   RT  RADAR CAMOUFLAGE

ANTIRADIATION AGENTS
   Use  RADIOPROTECTIVE AGENTS

ANTIRADIATION MISSILES
   BT  GUIDED MISSILES

ANTIRAIN AGENTS
   BT  WEATHER MODIFICATION

ANTIREFLECTION COATINGS
   BT  COATINGS
   BT  COUNTERMEASURES
   NT  ANTIRADAR COATINGS
   NT  ANTISONAR COATINGS
   RT  NONREFLECTING COATINGS
   RT  OPTICAL RETROREFLECTION

ANTISATELLITE DEFENSE SYSTEMS
   BT  SPACE DEFENSE

ANTISATELLITE MISSILES
SN: 01-DEC-1984 - MISSILES WHOSE TARGET IS AN ORBITING SATELLITE.
   BT  GUIDED MISSILES

ANTISCHISTOSOMAL DRUGS
   BT  ANTHELMINTICS
   RT  SCHISTOSOMIASIS

ANTISEIZE COMPOUNDS
   BT  LUBRICANTS

ANTISENSE THERAPY
SN: 01-JUL-2000 - ANTIVIRAL THERAPY USING SNIPPETS OF GENETIC MATERIAL DESIGNED TO MAKE DISEASE-PRODUCING VIRUSES INEFFECTIVE BY BINDING WITH THEIR TRNA.
   BT  CHEMOTHERAPY

ANTISEPTICS
   Use  GERMICIDES

ANTISERUM
   Use  IMMUNE SERUMS

ANTISHIP AMMUNITION
   BT  AMMUNITION
   NT  ANTISHIP MISSILES
   NT  ANTISUBMARINE AMMUNITION
   NT  TORPEDOES

ANTISHIP MISSILES
   BT  ANTISHIP AMMUNITION
   BT  GUIDED MISSILES

ANTISHIP WARFARE
   BT  NAVAL WARFARE

ANTISONAR COATINGS
   BT  ANTIREFLECTION COATINGS
   BT  CAMOUFLAGE

ANTISPASMODIC AGENTS
SN: AGENTS THAT PRODUCE SPASMOLYTIC ACTION ON SMOOTH MUSCLE.
   UF  BRONCHODILATORS
   UF  TRASENTINE
   BT  MUSCLE RELAXANTS
   NT  ISOPROTERENOL
   RT  CONTRACTION

ANTISUBMARINE AIRCRAFT
SN: ALL TYPES OF AIRCRAFT, INCLUDING AIRSHIPS, BOMBERS, DRONES, AND HELICOPTERS, FORUSE AGAINST SUBMARINES.
   BT  MILITARY AIRCRAFT

ANTISUBMARINE AMMUNITION
   UF  ANTISUBMARINE CHARGES
   BT  ANTISHIP AMMUNITION
   NT  ANTISUBMARINE MISSILES
   NT  DEPTH BOMBS
   NT  DEPTH CHARGES
   RT  ANTISUBMARINE WEAPON PROJECTORS

ANTISUBMARINE CHARGES
   Use  ANTISUBMARINE AMMUNITION

ANTISUBMARINE DEFENSE SYSTEMS
   BT  DEFENSE SYSTEMS
   RT  HARBOR DEFENSE SYSTEMS

ANTISUBMARINE FIRE CONTROL SYSTEMS
   BT  FIRE CONTROL SYSTEMS

ANTISUBMARINE MISSILES
SN: 01-MAY-1983 - MISSLES WHOSE TARGETS ARE SUBMARINES.
   BT  ANTISUBMARINE AMMUNITION
   BT  ANTISUBMARINE WEAPONS
   BT  GUIDED MISSILES

ANTISUBMARINE WARFARE
   BT  UNDERSEA WARFARE
   NT  HUNTER KILLER GROUPS
   RT  ACOUSTIC SURVEILLANCE

ANTISUBMARINE WEAPON PROJECTORS
   BT  PROJECTORS(ORDNANCE)
   RT  ANTISUBMARINE AMMUNITION

ANTISUBMARINE WEAPONS
SN: 01-MAY-1983 - ANY NAVAL DEVICE DESIGNATED TO DESTROY SUBMARINES.
   BT  WEAPONS
   NT  ANTISUBMARINE MISSILES
   NT  DEPTH BOMBS
   NT  DEPTH CHARGES

ANTISWEEP MINES
   BT  NAVAL MINES

ANTISWIMMER DEFENSE SYSTEMS
   BT  DEFENSE SYSTEMS

ANTITANK AMMUNITION
   BT  ANTIARMOR AMMUNITION
   RT  ANTITANK WEAPONS

ANTITANK GUNS
   UF  AT GUNS
   BT  ANTITANK WEAPONS
   BT  GUNS

ANTITANK MINES
   BT  LAND MINES

ANTITANK MISSILES
SN: 01-SEP-1981 - MISSILES DESIGNED TO DESTROY OR IMMOBILIZE ENEMY TANKS.
   BT  ANTITANK WEAPONS
   BT  GUIDED MISSILES

ANTITANK WARFARE
   BT  TANK WARFARE

ANTITANK WEAPONS
   BT  WEAPONS
   NT  ANTITANK GUNS
   NT  ANTITANK MISSILES
   RT  ANTITANK AMMUNITION

ANTITHYROID AGENTS
   Use  THYROID AND ANTITHYROID AGENTS

ANTITORPEDO TORPEDOES
   BT  TORPEDOES

ANTITORQUE ROTORS
   BT  HELICOPTER ROTORS
   NT  TAIL ROTORS

ANTITOXINS
SN: 01-APR-2008
   BT  TOXINS AND ANTITOXINS
   RT  ANTIDOTES

ANTITUBERCULAR AGENTS
   BT  DRUGS
   RT  TUBERCULOSIS

ANTIVEHICLE WEAPONS
   BT  WEAPONS
   RT  VEHICLES

ANTIVIRAL AGENTS
   BT  DRUGS
   RT  VIRUSES

ANTIVIRUS SOFTWARE
SN: 01-OCT-1999
   BT  COMPUTER PROGRAMS
   RT  COMPUTER VIRUSES

ANTS
   Use  FORMICIDAE

ANXIETY
   BT  EMOTIONS
   RT  STRESS(PHYSIOLOGY)

AO(VESSELS)
   Use  TANKER SHIPS

AORTA
   BT  ARTERIES

AORTIC INSUFFICIENCY
   BT  CARDIOVASCULAR DISEASES
   BT  CIRCULATORY INSUFFICIENCIES

APERTURES
   NT  ANTENNA APERTURES
   RT  OPENINGS

APES
   BT  PRIMATES
   NT  CHIMPANZEES

APEU VIRUSES
   BT  GROUP C ARBOVIRUSES

APHASIA
SN: 01-NOV-1980 - IMPAIRMENT IN THE USE OR COMPREHENSION OF LANGUAGE CAUSED BY LESIONS OF THE CEREBRAL CORTEX.
   BT  MENTAL DISORDERS
   NT  AMNESIC APHASIA

APLYSIA
   BT  GASTROPODA

APOGEE
   BT  ELLIPTICAL ORBIT TRAJECTORIES

APOMORPHINE
   Use  EMETICS

APOPTOSIS
SN: 01-JAN-2001 - PROGRAMMED CELL DESTRUCTION.
   BT  MORPHOLOGY(BIOLOGY)

APPALACHIAN MOUNTAINS
SN: 01-JUN-1999 - A MOUNTAIN RANGE IN E. NORTH AMERICA, EXTENDING FROM S. QUEBEC PROVINCE TO N. ALABAMA.
   BT  MOUNTAINS

APPARENT DENSITY
   BT  DENSITY

APPENDAGES
   NT  FLIPPERS
   RT  EXTREMITIES

APPETITE
   BT  PERCEPTION

APPLICATION PROGRAMMING INTERFACE
SN: 01-OCT-2005
   BT  INPUT OUTPUT PROCESSING
   BT  MAN COMPUTER INTERFACE

APPLICATORS
   BT  SMALL TOOLS
   NT  PAINT APPLICATORS

APPLIED MATHEMATICS
   BT  MATHEMATICS
   NT  OPERATIONS RESEARCH

APPLIED MECHANICS
   BT  MECHANICS

APPLIED PSYCHOLOGY
   UF  PSYCHOTECHNOLOGY
   BT  PSYCHOLOGY
   NT  INDUSTRIAL PSYCHOLOGY
   NT  MILITARY PSYCHOLOGY
   NT  PROPAGANDA
   NT  PSYCHOLOGICAL OPERATIONS

APPRENTICESHIP
   BT  INDUSTRIAL TRAINING

APPROACH
   BT  FLIGHT
   RT  ARRIVAL
   RT  DESCENT

APPROACH INDICATORS
   BT  FLIGHT INSTRUMENTS
   BT  NAVIGATIONAL AIDS

APPROACH LIGHTS
   BT  NAVIGATIONAL LIGHTS

APPROXIMATE COMPUTATION
   Use  NUMERICAL ANALYSIS

APPROXIMATION(MATHEMATICS)
   BT  MATHEMATICS
   NT  CHEBYSHEV APPROXIMATIONS
   NT  HARTREE FOCK APPROXIMATION
   NT  SMOOTHING(MATHEMATICS)
   NT  TRUNCATION

APRICOTS
   Use  FRUITS

APRONS
   BT  PROTECTIVE CLOTHING

APTITUDE TESTS
   UF  VOCATIONAL TESTS
   BT  PERFORMANCE TESTS
   BT  PSYCHOLOGICAL TESTS
   RT  APTITUDES

APTITUDES
   BT  LEARNING
   RT  APTITUDE TESTS

AQUALUNG
   Use  SCUBA APPARATUS

AQUANAUTS
   BT  PERSONNEL
   RT  SCUBA DIVERS

AQUATIC ANIMALS
   UF  MARINE ANIMALS
   BT  ANIMALS
   BT  AQUATIC ORGANISMS
   NT  AQUATIC INSECTS
   NT  CETACEA
   NT  CYCLOSTOMATA
   NT  DAPHNIA
   NT  ECHINODERMATA
   NT  FISHES
   NT  MARINE BORERS
   NT  SEALS(MAMMALS)
   NT  SHELLFISH
   NT  SPONGES

AQUATIC BIOLOGY
   UF  HYDROBIOLOGY
   BT  BIOLOGY
   NT  MARINE BIOLOGY

AQUATIC INSECTS
   BT  AQUATIC ANIMALS
   BT  INSECTS

AQUATIC ORGANISMS
   NT  AQUATIC ANIMALS
   NT  AQUATIC PLANTS
   NT  PLANKTON

AQUATIC PLANTS
   BT  AQUATIC ORGANISMS
   BT  PLANTS(BOTANY)
   NT  AQUATIC WEEDS
   NT  KELP

AQUATIC WEEDS
   BT  AQUATIC PLANTS
   BT  WEEDS
   NT  ALLIGATOR WEED
   NT  WATER HYACINTH

AQUEOUS SOLUTIONS
SN: 01-JUN-1997
   BT  SOLUTIONS(MIXTURES)
   NT  SALINE SOLUTION

AQUICLUDES
SN: 01-NOV-1980 - GEOLOGICAL FORMATIONS OF ROCK OR SOIL WHICH, ALTHOUGH POROUS AND CAPABLE OF ABSORBING WATER SLOWLY, WILL NOT TRANSMIT ITFAST ENOUGH TO FURNISH AN APPRECIABLE SUPPLY FOR A SPRING OR WELL.
   BT  GROUND WATER

AQUICULTURE
SN: a technique of growing plants without soil in water containing dissolved nutrients. (DEC 1984)
   BT  AGRICULTURE
   NT  FISHERIES
   RT  HYDROPONICS

AQUIFERS
   BT  GROUND WATER
   NT  WATER TABLE
   RT  SPRINGS(WATER)

ARAB GUERRILLAS
   BT  GUERRILLA WARFARE

ARABIA
   BT  MIDDLE EAST
   BT  SOUTHWEST ASIA
   NT  BAHRAIN
   NT  KUWAIT
   NT  OMAN
   NT  QATAR
   NT  SAUDI ARABIA
   NT  UNITED ARAB EMIRATES
   NT  YEMEN

ARABIAN SEA
   BT  INDIAN OCEAN
   NT  OMAN GULF
   NT  PERSIAN GULF
   NT  RED SEA

ARABIC LANGUAGE
SN: 01-OCT-1993
   BT  NATURAL LANGUAGE

ARABINOSE
   BT  PENTOSES

ARABS
   BT  ETHNIC GROUPS
   NT  PALESTINIANS

ARACHNIDA
SN: 01-DEC-1984
   UF  ARACHNIDS
   BT  ARTHROPODA
   NT  MITES
   NT  SPIDERS
   NT  TICKS

ARACHNIDS
   Use  ARACHNIDA

ARACHNOID
   Use  MENINGES

ARAGONITE
   BT  CARBONATE MINERALS

ARAMID FIBERS
SN: Class of heat-resistant and strong synthetic fibers. They are used in aerospace and military applications, for ballistic rated body armor fabric and ballistic composites. They are fibers in which the chain molecules are highly oriented along the fiber axis, so the strength of the chemical bond can be exploited. (July 2011)
   UF  KEVLAR
   UF  TWARON
   BT  SYNTHETIC FIBERS

ARBITRATION
   BT  NEGOTIATIONS

ARBOVIRUSES
SN: is a term used to refer to a group of viruses that are transmitted by arthropod vectors. The word arbovirus is an acronym (ARthropod-BOrne viruses). Some arboviruses are able to cause emergent disease.
   UF  ARTHROPOD BORNE VIRUSES
   BT  VIRUSES
   NT  ARENAVIRUSES
   NT  CALIFORNIA ENCEPHALITIS VIRUS
   NT  COLORADO TICK VIRUS
   NT  GROUP A ARBOVIRUSES
   NT  GROUP B ARBOVIRUSES
   NT  GROUP C ARBOVIRUSES
   NT  JAPANESE ENCEPHALITIS VIRUSES
   NT  RABIES VIRUS
   NT  RIFT VALLEY FEVER VIRUS
   NT  TICKBORNE VIRUSES

ARC HEATERS
   BT  HEATERS
   RT  ARC HEATING

ARC HEATING
   BT  HEATING
   RT  ARC HEATERS

ARC JET ENGINES
SN: ENGINES IN WHICH THRUST IS PROVIDED BY HEATING A GASEOUS PROPELLANT WITH AN ELECTRIC ARC.
   UF  ELECTROTHERMAL ENGINES
   BT  ELECTRIC ENGINES
   BT  ROCKET ENGINES
   RT  PLASMA ENGINES

ARC LAMPS
   BT  DISCHARGE LAMPS
   NT  CARBON ARC LAMPS

ARC MELTING
   BT  MELTING
   NT  CONSUMABLE ELECTRODE PROCESS
   RT  ZONE MELTING

ARC SPRAYING
   BT  COATINGS

ARC WELDING
   BT  ELECTRIC WELDING
   BT  FUSION WELDING
   NT  GAS METAL ARC WELDING
   NT  INERT GAS WELDING
   NT  PLASMA ARC WELDING
   NT  SUBMERGED ARC WELDING

ARC WELDS
   BT  WELDS

ARCH DAMS
   BT  DAMS

ARCHEOLOGISTS
   BT  PERSONNEL
   RT  ARCHEOLOGY

ARCHEOLOGY
   BT  SOCIAL SCIENCES
   RT  ARCHEOLOGISTS
   RT  FOSSILS

ARCHES
   BT  STRUCTURES
   RT  TRUSSES

ARCHIPELAGOES
   BT  ISLANDS
   NT  BAHAMA ISLANDS
   NT  GALAPAGOS ISLANDS
   NT  INDONESIA
   NT  PHILIPPINES

ARCHITECTS
   BT  PERSONNEL
   NT  MARINE ARCHITECTS
   RT  ARCHITECTURE

ARCHITECTURE
   RT  ARCHITECTS
   RT  CONSTRUCTION

ARCHIVES
   BT  INFORMATION CENTERS

ARCTIC OCEAN
   BT  OCEANS
   NT  BARENTS SEA
   NT  BEAUFORT SEA
   NT  CHUKCHI SEA
   NT  KARA SEA
   NT  WHITE SEA

ARCTIC OCEAN ISLANDS
   BT  ISLANDS
   NT  BAFFIN ISLAND
   NT  BARTER ISLAND
   NT  FRANZ JOSEF LAND
   NT  QUEEN ELIZABETH ISLANDS

ARCTIC REGIONS
   BT  COLD REGIONS
   RT  PERMAFROST
   RT  TUNDRA

AREA BOMBING
   UF  PATTERN BOMBING
   UF  SCATTER BOMBING
   BT  BOMBING

AREA COVERAGE
   UF  FOOTPRINT(FLOOR SPACE)

AREA DEFENSE
   BT  DEFENSE SYSTEMS
   RT  AREA SECURITY

AREA DENIAL
   BT  INTERDICTION

AREA SCANNING
   BT  SCANNING

AREA SECURITY
   BT  SECURITY
   NT  ANTIINTRUSION DEVICES
   RT  AREA DEFENSE

AREA SUCTION
   BT  BOUNDARY LAYER CONTROL

ARECOLINE
   BT  ANTHELMINTICS
   BT  NICOTINIC ACID
   BT  PARASYMPATHOMIMETIC AGENTS

ARENAVIRUSES
SN: 01-JUN-1989 - ANY OF A GROUP OF VIRUSES MADE UP OF PLEMORPHIC VIRIONS, 50-300NM IN DIAMETER, HAVING 4 LARGE AND 1-3 SMALL SEGMENTS OF SINGLE-STRANDED RNA AND HAVING RIBOSOMESWITHIN THE VIRIONS THAT GIVE A SANDY APPEARANCE.
   BT  ARBOVIRUSES
   NT  HANTAAN VIRUS
   NT  JUNIN VIRUS
   NT  LASSA FEVER VIRUS
   NT  MACHUPO VIRUS

ARGASIDAE
   Use  TICKS

ARGENTINA
   BT  SOUTH AMERICA

ARGON
   BT  RARE GASES

ARGON LASERS
   BT  GAS LASERS

ARID LAND
   BT  GEOGRAPHIC AREAS
   NT  DESERTS
   NT  DRY LAKES
   RT  DROUGHT

ARITHMETIC
   BT  MATHEMATICS
   NT  ADDITION
   NT  ARITHMETIC UNITS
   NT  DIVISION
   NT  MULTIPLICATION

ARITHMETIC GENUS
   Use  ALGEBRAIC GEOMETRY

ARITHMETIC PROGRESSIONS
   Use  SERIES(MATHEMATICS)

ARITHMETIC UNITS
   BT  ARITHMETIC

ARIZONA
   BT  UNITED STATES

ARKANSAS
   BT  UNITED STATES

ARKANSAS RIVER
SN: 01-JUN-1989
   BT  RIVERS

ARMATURES
   BT  ELECTRICAL EQUIPMENT
   RT  COMMUTATORS

ARMED FORCES MEDICINE
   Use  MILITARY MEDICINE

ARMED FORCES POLICE
   Use  MILITARY POLICE

ARMED FORCES(UNITED STATES)
   Use  MILITARY FORCES(UNITED STATES)

ARMENIA
SN: 01-OCT-1994
   BT  CIS
   BT  SOUTHWEST ASIA

ARMING DEVICES
   UF  ARMING UNITS
   UF  EXTENDER MECHANISMS
   BT  FIRING MECHANISMS(AMMUNITION)
   BT  FUZE FUNCTIONING ELEMENTS
   NT  ARMING SEQUENCE

ARMING SEQUENCE
   BT  ARMING DEVICES

ARMING UNITS
   Use  ARMING DEVICES

ARMOR
   BT  ORDNANCE
   NT  ARMOR PLATE
   NT  BODY ARMOR
   NT  COMPOSITE ARMOR
   NT  RADIOLOGICAL ARMOR
   NT  REACTIVE ARMOR
   NT  ROLLED HOMOGENEOUS ARMOR
   NT  SPACED ARMOR
   NT  VEHICULAR ARMOR

ARMOR PIERCING AMMUNITION
   BT  ANTIARMOR AMMUNITION

ARMOR PLATE
   BT  ARMOR
   BT  PLATES
   RT  BODY ARMOR
   RT  METAL PLATES

ARMORED PERSONNEL CARRIERS
   BT  ARMORED VEHICLES

ARMORED VEHICLES
   BT  COMBAT VEHICLES
   NT  ARMORED PERSONNEL CARRIERS
   NT  MINE RESISTANT VEHICLES
   NT  TANKS(COMBAT VEHICLES)
   RT  VEHICULAR ARMOR

ARMS(ANATOMY)
   BT  EXTREMITIES
   NT  WRIST
   RT  HUMERUS
   RT  ULNAR NERVE

ARMS CONTROL
   UF  COUNTER PROLIFERATION
   NT  DISARMAMENT

ARMY
   UF  ARMY DEPARTMENT
   BT  MILITARY FORCES(UNITED STATES)
   NT  ARMY CORPS OF ENGINEERS
   NT  FIELD ARMY

ARMY AIRCRAFT
   BT  MILITARY AIRCRAFT

ARMY AVIATION
   BT  AERONAUTICS

ARMY BUDGETS
   BT  MILITARY BUDGETS

ARMY CORPS OF ENGINEERS
   BT  ARMY

ARMY DEPARTMENT
   Use  ARMY

ARMY EQUIPMENT
   BT  LOGISTICS
   BT  MILITARY EQUIPMENT

ARMY FACILITIES
SN: 01-SEP-1981 - AN ARMY BASE OR INSTALLATION NECESSARY FOR SUPPORT OF ARMY ACTIVITIES INCLUDING SECURITY, COMMUNICATIONS, UTILITIES, PLANTS AND SYSTEMS, AND REAL PROPERTY FOR WHICH THE ARMY HAS OPERATING RESPONSIBILITY.
   BT  MILITARY FACILITIES

ARMY INTELLIGENCE
SN: 01-SEP-1981 - INCLUDES EVERY PHASE AND HANDLING OF INFORMATION FROM ITS EVALUATION COLLATION, SYNTHESIS, INTERPRETATION AND PRESENTATION, TO ITS DISSEMINATION BY THE ARMY.
   BT  MILITARY INTELLIGENCE

ARMY OPERATIONS
   BT  MILITARY OPERATIONS
   NT  TRUCK CONVOYS

ARMY PERSONNEL
   UF  SOLDIERS
   BT  MILITARY PERSONNEL
   NT  INFANTRY PERSONNEL

ARMY PLANNING
   BT  MILITARY PLANNING

ARMY PROCUREMENT
   BT  MILITARY PROCUREMENT

ARMY RESEARCH
   BT  MILITARY RESEARCH

ARMY RESEARCH LABORATORIES
   BT  LABORATORIES

ARMY TRAINING
   BT  MILITARY TRAINING

AROMATIC COMPOUNDS
   BT  ORGANIC COMPOUNDS
   NT  AROMATIC HYDROCARBONS
   NT  PHENOLS

AROMATIC HYDROCARBONS
   BT  AROMATIC COMPOUNDS
   BT  UNSATURATED HYDROCARBONS
   NT  ANTHRACENES
   NT  BENZENE
   NT  BENZENE COMPOUNDS
   NT  BIPHENYL
   NT  CUMENES
   NT  FLUORENES
   NT  NAPHTHALENES
   NT  PHENANTHRENES
   NT  STYRENES
   NT  TOLUENES
   NT  XYLENES

ARRAYS
   NT  ACOUSTIC ARRAYS
   NT  ANTENNA ARRAYS
   NT  LASER ARRAYS
   NT  LINEAR ARRAYS
   NT  PHASED ARRAYS
   NT  SEISMIC ARRAYS
   NT  SUSPENDED ARRAYS
   NT  TOWED ARRAYS

ARRESTING GEAR
   BT  LANDING AIDS
   RT  ARRESTING(PROCESS)
   RT  BRAKES

ARRESTING(PROCESS)
   RT  ARRESTING GEAR
   RT  BRAKING

ARRHENIUS EQUATION
   BT  REACTION KINETICS

ARRHYTHMIA
   UF  VENTRICULAR FIBRILLATION
   BT  CARDIOVASCULAR DISEASES

ARRIVAL
   NT  ANGLE OF ARRIVAL
   RT  APPROACH

ARSENATES
   BT  ARSENIC COMPOUNDS

ARSENIC
   BT  METALLOIDS
   RT  ARSENIC ALLOYS
   RT  ARSENIC COMPOUNDS

ARSENIC AGENTS
   BT  VESICANTS

ARSENIC ALLOYS
   BT  METALLOID ALLOYS
   RT  ARSENIC

ARSENIC COMPOUNDS
   BT  GROUP V COMPOUNDS
   BT  NONMETALLIC COMPOUNDS
   NT  ARSENATES
   NT  ARSENIC SULFIDES
   NT  ARSENIDES
   NT  ARSINES
   NT  ARSONIC ACID
   RT  ARSENIC

ARSENIC SULFIDES
   BT  ARSENIC COMPOUNDS
   BT  SULFIDES

ARSENIDES
   BT  ARSENIC COMPOUNDS
   NT  ALUMINUM ARSENIDES
   NT  GALLIUM ARSENIDES
   NT  INDIUM ARSENIDES

ARSINES
   BT  ARSENIC COMPOUNDS

ARSONIC ACID
   BT  ACIDS
   BT  ARSENIC COMPOUNDS

ARTERENOL
   Use  NOREPINEPHRINE

ARTERIES
   BT  BLOOD VESSELS
   NT  AORTA
   NT  AXILLARY ARTERIES
   NT  CAROTID ARTERIES
   NT  CORONARY ARTERIES
   NT  FEMORAL ARTERIES
   NT  PULMONARY ARTERIES

ARTHRITIS
   BT  MUSCULOSKELETAL DISEASES
   BT  RHEUMATIC DISEASES
   RT  CALCIFICATION
   RT  JOINTS(ANATOMY)

ARTHROPOD BORNE DISEASES
   BT  DISEASES
   NT  MOSQUITO BORNE DISEASES
   NT  TICKBORNE DISEASES

ARTHROPOD BORNE VIRUSES
   Use  ARBOVIRUSES

ARTHROPODA
   BT  INVERTEBRATES
   NT  ARACHNIDA
   NT  CRUSTACEA
   NT  DAPHNIA
   NT  INSECTS
   RT  EXOSKELETON
   RT  LARVAE

ARTIFACTS
   RT  MUSEUMS

ARTIFICIAL INTELLIGENCE
SN: the study and design of intelligent agents where an intelligent agent is a system that perceives its environment and takes actions that maximize its chances of success. The science and engineering of making intelligent machines.
   BT  COMPUTER SCIENCE
   NT  COGNITIVE SCIENCE
   NT  COMPUTER VISION
   NT  EXPERT SYSTEMS
   NT  SPEECH RECOGNITION
   RT  AUTOMATA
   RT  SELF ORGANIZING SYSTEMS

ARTIFICIAL LEATHER
   BT  LEATHER
   BT  SYNTHETIC MATERIALS

ARTIFICIAL LIMBS
   BT  PROSTHETICS
   RT  AMPUTEES
   RT  EXTREMITIES

ARTIFICIAL LUNGS
   Use  RESPIRATORS

ARTIFICIAL PRECIPITATION
   BT  PRECIPITATION
   BT  WEATHER MODIFICATION
   RT  CLOUD SEEDING

ARTIFICIAL RADIOACTIVITY
   BT  RADIOACTIVITY

ARTIFICIAL RESPIRATION
   BT  RESPIRATION
   BT  THERAPY
   RT  CARDIOPULMONARY RESUSCITATION

ARTIFICIAL SATELLITES
   UF  ORBITING SATELLITES
   UF  SATELLITE VEHICLES
   UF  SATELLITES(ARTIFICIAL)
   BT  SPACECRAFT
   NT  COMMUNICATION SATELLITES
   NT  GEODETIC SATELLITES
   NT  LUNAR SATELLITES
   NT  MANEUVERING SATELLITES
   NT  MILITARY SATELLITES
   NT  NAVIGATION SATELLITES
   NT  RECONNAISSANCE SATELLITES
   NT  SATELLITE CONSTELLATIONS
   NT  SATELLITE NETWORKS
   NT  SCIENTIFIC SATELLITES
   NT  SOLAR SATELLITES
   NT  STRATEGIC SATELLITES
   NT  SYNCHRONOUS SATELLITES

ARTIFICIAL SOILS
   BT  SOILS
   BT  SYNTHETIC MATERIALS

ARTIFICIAL TISSUE
   BT  PROSTHETICS
   BT  TISSUES(BIOLOGY)

ARTILLERY
   BT  WEAPONS
   NT  ARTILLERY ROCKETS
   NT  HOWITZERS
   NT  SELF PROPELLED GUNS
   NT  SPOTTING RIFLES
   RT  ARTILLERY UNITS
   RT  GUNNERY

ARTILLERY AMMUNITION
   BT  AMMUNITION

ARTILLERY FIRE
   BT  GUNFIRE
   BT  GUNNERY

ARTILLERY ROCKETS
   BT  ARTILLERY
   BT  ROCKETS

ARTILLERY UNITS
   BT  MILITARY ORGANIZATIONS
   RT  ARTILLERY

ARYL ETHERS
   BT  ETHERS
   NT  ANISOLE
   NT  PHENYL ETHER

ARYL RADICALS
   BT  ORGANIC RADICALS
   NT  BENZYL RADICALS
   NT  CARBORANYL RADICALS
   NT  PHENYL RADICALS

ASBESTOS
   BT  FIBERS
   BT  MINERALS
   RT  INSULATION

ASCARIS
SN: is a genus of parasitic nematode worms known as the "giant intestinal roundworms".
   BT  NEMATODA

ASCENSION ISLAND
   BT  ATLANTIC OCEAN ISLANDS

ASCENT TRAJECTORIES
SN: INITIAL TRAJECTORIES OF VEHICLES FROM THEIR LAUNCHING POINTS TO THE POINT OF INJECTION INTO ORBIT. ALSO, ASCENT THROUGHTHE EARTH'S ATMOSPHERE.
   BT  TRAJECTORIES
   NT  AIR TO SPACE
   NT  TAKEOFF
   RT  CLIMBING

ASCITES
   BT  GASTROINTESTINAL DISEASES

ASCOMYCETES
   BT  FUNGI
   NT  COCCIDIOIDES
   NT  SACCHAROMYCETES
   NT  YEASTS

ASCORBATES
   BT  ASCORBIC ACID
   BT  ESTERS

ASCORBIC ACID
   UF  VITAMIN C
   BT  VITAMINS
   NT  ASCORBATES

ASEISMIC AREAS
   BT  GEOGRAPHIC AREAS

ASEPSIS
   BT  THERAPY

ASHES
   BT  COMBUSTION PRODUCTS
   RT  RESIDUES

ASIA
   BT  EURASIA
   NT  CENTRAL ASIA
   NT  FAR EAST
   NT  NORTHEAST ASIA
   NT  SOUTH ASIA

ASPARTIC ACID
   BT  AMINO ACIDS

ASPECT ANGLE
   BT  ANGLES

ASPECT RATIO
   BT  RATIOS

ASPHALT
   UF  ASPHALTITE
   BT  PITCH(MATERIAL)
   RT  PAVEMENTS
   RT  PETROLEUM PRODUCTS

ASPHALTITE
   Use  ASPHALT

ASPHERICAL LENSES
   BT  CAMERA LENSES
   BT  CURVED PROFILES
   BT  LENSES

ASPIRATORS
   BT  BREATHING APPARATUS

ASPIRIN
   Use  SALICYLIC ACIDS

ASPOROGENOUS BACTERIA
   BT  BACTERIA

ASSASSINATION
SN: 01-SEP-1981 - THE ACT OF ASSASSINATING, KILLING BY TREACHEROUS VIOLENCE; TO MURDER VIOLENTLY, ESPECIALLY GOVERNMENT OFFICIALS.
   BT  TERRORISM

ASSAULT
   BT  CRIMES
   RT  ATTACK

ASSAULT BARGES
   Use  LANDING CRAFT

ASSAYING
   BT  CHEMICAL ANALYSIS
   BT  MEASUREMENT
   NT  BIOASSAY

ASSEMBLERS
   BT  INDUSTRIAL PERSONNEL

ASSEMBLY
   BT  FABRICATION
   RT  ASSEMBLY LINES
   RT  DISASSEMBLY
   RT  MANUFACTURING

ASSEMBLY LANGUAGES
   BT  PROGRAMMING LANGUAGES

ASSEMBLY LINES
SN: 01-OCT-1997
   BT  MASS PRODUCTION
   RT  ASSEMBLY

ASSIGNMENT
   Use  ALLOCATIONS

ASSIMILATION
   BT  DISTRIBUTION
   RT  DISPERSING

ASSISTED SUICIDE
   Use  EUTHANASIA

ASSOCIATIONS
   Use  ORGANIZATIONS

ASSOCIATIVE PROCESSING
   BT  DATA PROCESSING

ASSURED DESTRUCTION
SN: 01-DEC-1984 - A HIGHLY RELIABLE ABILITY TO INFLICT UNACCEPTABLE DAMAGE ON ANY OPPONENT OR COMBINATION OF OPPONENTS AT ANY TIME DURING THE COURSE OF A NUCLEAR WAR; EVEN AFTER ABSORBING A SURPRISE FIRST STRIKE.
   BT  DESTRUCTION

ASTATINE
   BT  HALOGENS
   BT  METALLOIDS
   RT  ASTATINE COMPOUNDS

ASTATINE COMPOUNDS
   BT  HALOGEN COMPOUNDS
   BT  NONMETALLIC COMPOUNDS
   RT  ASTATINE

ASTEROIDS
   BT  SOLAR SYSTEM

ASTHMA
   BT  ALLERGIC DISEASES
   BT  RESPIRATORY DISEASES

ASTIGMATISM
   BT  EYE DISEASES
   NT  NYSTAGMUS
   RT  VISUAL PERCEPTION

ASTRIONICS
   BT  AVIONICS

ASTRO COMMUNICATION SYSTEMS
   Use  SPACE COMMUNICATIONS

ASTROBIOLOGY
   Use  SPACE BIOLOGY

ASTROCYTES
   BT  NERVE CELLS

ASTROGEOLOGY
   BT  GEOLOGY
   BT  SPACE SCIENCES
   NT  LUNAR GEOLOGY

ASTRONAUTICS
   BT  SPACE SCIENCES
   NT  AEROSPACE SYSTEMS
   RT  AERONAUTICS

ASTRONAUTS
   UF  COSMONAUTS
   BT  SPACE CREWS

ASTRONOMERS
   BT  SCIENTISTS

ASTRONOMICAL BODIES
   NT  NEBULAE
   NT  RADIO SOURCES(ASTRONOMY)
   NT  SOLAR SYSTEM
   NT  SPACE OBJECTS
   NT  STARS

ASTRONOMICAL CAMERAS
   UF  SCHMIDT CAMERAS
   BT  CAMERAS
   NT  SPECTROHELIOGRAPHS

ASTRONOMICAL GEODESICS
   Use  GEODETIC ASTRONOMY

ASTRONOMICAL INSTRUMENTS
   BT  INSTRUMENTATION
   NT  PYRANOMETERS

ASTRONOMICAL OBSERVATORIES
   UF  OBSERVATORIES (ASTRONOMICAL)
   BT  OBSERVATORIES
   NT  SOLAR OBSERVATORIES
   RT  TELESCOPES

ASTRONOMY
   UF  CELESTIAL OBSERVATION
   BT  SPACE SCIENCES
   NT  ALBEDO(ASTRONOMY)
   NT  RADAR ASTRONOMY
   NT  RADIO ASTRONOMY
   NT  SPHERICAL ASTRONOMY
   NT  STELLAR EVOLUTION
   NT  X RAY ASTRONOMY
   RT  GEODETIC ASTRONOMY

ASTROPHYSICS
SN: Branch of physics that deals with the physics of the universe, including the physical properties of celestial objects, as well as their interactions and behavior.
   BT  PHYSICS
   BT  SPACE SCIENCES
   NT  COSMOLOGY

ASYMMETRIC WARFARE
SN: 01-APR-2007 - Warfare conducted in which the forces with the smaller military force level take advantage of either natural elements and/or unconventional methods to strike at a parity with their opponent.
   BT  MILITARY TACTICS
   BT  UNCONVENTIONAL WARFARE
   NT  GUERRILLA WARFARE

ASYMMETRY
   BT  SYMMETRY
   RT  ECCENTRICITY
   RT  SKEWNESS

ASYMPTOTIC EXPANSION
   Use  ASYMPTOTIC SERIES

ASYMPTOTIC NORMALITY
   BT  NORMALITY

ASYMPTOTIC SERIES
   UF  ASYMPTOTIC EXPANSION
   BT  SERIES(MATHEMATICS)

asynchronous computation
   Use  DISTRIBUTED COMPUTING

ASYNCHRONOUS COMPUTERS
   BT  ASYNCHRONOUS SYSTEMS
   BT  COMPUTERS

ASYNCHRONOUS SYSTEMS
   NT  ASYNCHRONOUS COMPUTERS

ASYNCHRONOUS TRANSFER MODE
SN: 01-JUN-1997
   BT  TIME DIVISION MULTIPLEXING

AT GUNS
   Use  ANTITANK GUNS

ATABRINE
   Use  CINCHONA ALKALOIDS

ATARAXICS
   Use  TRANQUILIZERS

ATAXIA
   BT  CENTRAL NERVOUS SYSTEM
   BT  MUSCLES

ATELECTASIS
   BT  RESPIRATORY DISEASES

ATHEROSCLEROSIS
   BT  CARDIOVASCULAR DISEASES

ATISINE
   Use  ALKALOIDS

ATLANTIC OCEAN
   BT  OCEANS
   NT  NORTH ATLANTIC OCEAN
   NT  SOUTH ATLANTIC OCEAN

ATLANTIC OCEAN ISLANDS
   BT  ISLANDS
   NT  ASCENSION ISLAND
   NT  AZORES
   NT  BERMUDA
   NT  BLOCK ISLAND
   NT  CANARY ISLANDS
   NT  FALKLAND ISLANDS
   NT  FAROE ISLANDS
   NT  GREENLAND
   NT  ICELAND
   NT  IRELAND
   NT  UNITED KINGDOM
   NT  WEST INDIES

ATMOSPHERE ENTRY
   UF  ATMOSPHERE REENTRY
   UF  REENTRY AERODYNAMICS
   RT  aerodynamic heating
   RT  DESCENT TRAJECTORIES
   RT  ENTRY CONTROL SYSTEMS
   RT  PLASMA SHEATHS

ATMOSPHERE MODELS
   BT  MODELS
   NT  IONOSPHERIC MODELS

ATMOSPHERE REENTRY
   Use  ATMOSPHERE ENTRY

ATMOSPHERES
   NT  CONTROLLED ATMOSPHERES
   NT  MAGNETOSPHERE
   NT  MARINE ATMOSPHERES
   NT  PLANETARY ATMOSPHERES
   NT  RAREFIED ATMOSPHERES
   NT  STELLAR ATMOSPHERES

ATMOSPHERIC ABSORPTION
   Use  ATMOSPHERIC ATTENUATION

ATMOSPHERIC ATTENUATION
SN: 01-MAY-1983 - A PROCESS IN WHICH THE FLUX DENSITY OF APARALLEL BEAM OF ENERGY DECREASES WITH INCREASING DISTANCE FROM THE SOURCE AS ARESULT OF ABSORPTION OR SCATTERING BY THE ATMOSPHERE.
   UF  ATMOSPHERIC ABSORPTION
   BT  ATTENUATION

ATMOSPHERIC CHEMISTRY
   BT  ATMOSPHERIC SCIENCES
   BT  CHEMISTRY
   NT  IONOSPHERIC CHEMISTRY
   RT  AIR POLLUTION

ATMOSPHERIC CONDENSATION
   BT  CONDENSATION
   BT  METEOROLOGICAL PHENOMENA
   NT  CLOUD COVER
   NT  CLOUDS
   NT  CONDENSATION TRAILS
   NT  DEW

ATMOSPHERIC CONTAMINATION
   Use  AIR POLLUTION

ATMOSPHERIC CORROSION
   BT  CORROSION

ATMOSPHERIC DENSITY
   BT  DENSITY

ATMOSPHERIC DISTURBANCES
   NT  GREENHOUSE EFFECT
   NT  IONOSPHERIC DISTURBANCES
   RT  ATMOSPHERIC PHYSICS

ATMOSPHERIC ELECTRICITY
   BT  ELECTRICITY
   BT  METEOROLOGICAL PHENOMENA
   NT  LIGHTNING

ATMOSPHERIC HEAVE
   BT  ATMOSPHERIC MOTION
   BT  HEAVING

ATMOSPHERIC IMPURITIES
   Use  AIR POLLUTION

ATMOSPHERIC MOTION
SN: MOVEMENTS OF AIR MASSES IN THE EARTH'S ATMOSPHERE, ESPECIALLY LARGE-SCALE CIRCULATION PATTERNS.
   UF  ATMOSPHERIC TURBULENCE
   BT  METEOROLOGICAL PHENOMENA
   NT  ANTICYCLONES
   NT  ATMOSPHERIC HEAVE
   NT  ATMOSPHERIC TIDES
   NT  CLEAR AIR TURBULENCE
   NT  CYCLONES
   NT  WIND
   RT  TURBULENCE

ATMOSPHERIC PHYSICS
   UF  AEROPHYSICS
   BT  ATMOSPHERIC SCIENCES
   BT  PHYSICS
   NT  AERONOMY
   NT  CLOUD PHYSICS
   RT  ATMOSPHERIC DISTURBANCES
   RT  ATMOSPHERIC SCATTERING

ATMOSPHERIC POLLUTION
   Use  AIR POLLUTION

ATMOSPHERIC PRECIPITATION
SN: NATURAL PRECIPITATION IN THE METEOROLOGICAL SENSE.
   BT  METEOROLOGICAL PHENOMENA
   BT  PRECIPITATION
   NT  HYDROMETEORS

ATMOSPHERIC PRESSURE
   Use  BAROMETRIC PRESSURE

ATMOSPHERIC REFRACTION
SN: REFRACTION PHENOMENA OBSERVED IN LIGHT ORIGINATING FROM A SOURCE OUTSIDE THE EARTH'S ATMOSPHERE.
   UF  RAINBOWS
   BT  METEOROLOGICAL PHENOMENA
   BT  REFRACTION
   NT  THERMAL LENS EFFECT

ATMOSPHERIC SCATTERING
   BT  SCATTERING
   NT  AFTERGLOWS
   RT  ATMOSPHERIC PHYSICS

ATMOSPHERIC SCIENCES
SN: Study of the atmosphere, its processes, the effects other systems have on the atmosphere, and the effects of the atmosphere on these other systems. (July 2011)
   UF  aerology
   NT  ATMOSPHERIC CHEMISTRY
   NT  ATMOSPHERIC PHYSICS
   NT  CLIMATOLOGY
   NT  METEOROLOGY

ATMOSPHERIC SOUNDING
   BT  SOUNDING
   RT  SOUNDING ROCKETS

ATMOSPHERIC TEMPERATURE
   BT  METEOROLOGICAL PHENOMENA
   BT  TEMPERATURE
   NT  LAPSE RATE
   NT  TEMPERATURE INVERSION

ATMOSPHERIC TIDES
   UF  TIDES(ATMOSPHERIC)
   BT  ATMOSPHERIC MOTION
   BT  TIDES
   RT  AERONOMY
   RT  MICROBAROMETRIC WAVES

ATMOSPHERIC TURBULENCE
   Use  ATMOSPHERIC MOTION

ATMOSPHERIC WINDOWS
   BT  WINDOWS

ATMOSPHERICS
SN: DISTURBANCES PRODUCED IN ELECTRONIC COMMUNICATIONS DEVICES BY ATMOSPHERIC ELECTRICAL PHENOMENA.
   UF  SFERICS
   UF  SPHERICS
   BT  RADIO WAVES
   NT  DAWN CHORUS
   NT  PRECIPITATION STATIC
   NT  WHISTLERS

ATOLLS
   BT  CORAL REEFS
   BT  ISLANDS
   NT  BIKINI ATOLL
   NT  ENEWETAK ATOLL
   NT  KWAJALEIN ATOLL

ATOM RECOMBINATION
   Use  RECOMBINATION REACTIONS

ATOMIC BEAMS
   BT  PARTICLE BEAMS

ATOMIC BOMB DAMAGE
   Use  NUCLEAR EXPLOSION DAMAGE

ATOMIC BOMB EXPLOSIONS
   Use  NUCLEAR EXPLOSIONS

ATOMIC BOMB TESTS
   Use  NUCLEAR EXPLOSION TESTING

ATOMIC BOMBS
   Use  NUCLEAR BOMBS

ATOMIC CHARGE
   BT  ATOMIC PROPERTIES

ATOMIC CLOCKS
   BT  CLOCKS
   BT  TIMING DEVICES
   RT  CHRONOMETERS

ATOMIC DEMOLITION MUNITIONS
   BT  NUCLEAR WEAPONS

ATOMIC ENERGY
   Use  NUCLEAR ENERGY

ATOMIC ENERGY ENGINEERING
   Use  NUCLEAR ENGINEERING

ATOMIC ENERGY LEVELS
   BT  ATOMIC STRUCTURE
   BT  ENERGY LEVELS
   NT  GROUND STATE

ATOMIC ENERGY PLANTS
   Use  NUCLEAR POWER PLANTS

ATOMIC EXPLOSIONS
   Use  NUCLEAR EXPLOSIONS

ATOMIC LAYER EPITAXY
SN: 01-OCT-1995
   BT  EPITAXIAL GROWTH

ATOMIC MASS UNIT
   Use  ATOMIC PROPERTIES

ATOMIC NUMBER
   Use  ATOMIC PROPERTIES

ATOMIC ORBITALS
   BT  ATOMIC STRUCTURE
   RT  ELECTRON TRANSITIONS

ATOMIC PILES
   Use  NUCLEAR REACTORS

ATOMIC POWER PLANTS
   Use  NUCLEAR POWER PLANTS

ATOMIC PROPERTIES
SN: PROPERTIES OF ATOMS ARISING FROM THEIR NATURE AS CONSTITUENT PARTS OF SUBSTANCESAS DISTINCT FROM MATERIAL PROPERTIES RESULTING FROM THE ARRANGMENT OF ATOMS INTO MOLECULES AND SOLIDS.
   UF  ATOMIC MASS UNIT
   UF  ATOMIC NUMBER
   UF  ATOMIC WEIGHT
   NT  ATOMIC CHARGE
   NT  ATOMIC SPECTRA
   NT  ATOMIC STRUCTURE
   NT  MASS NUMBER
   NT  SPIN STATES
   RT  ATOMS
   RT  NUCLEAR PROPERTIES

ATOMIC RADII
   Use  ATOMIC STRUCTURE

ATOMIC REACTORS
   Use  NUCLEAR REACTORS

ATOMIC SPECTRA
   BT  ATOMIC PROPERTIES
   BT  ELECTROMAGNETIC SPECTRA
   NT  RYDBERG CONSTANT
   NT  STARK EFFECT
   NT  ZEEMAN EFFECT

ATOMIC SPECTROSCOPY
   BT  SPECTROSCOPY

ATOMIC STRUCTURE
SN: INCLUDES INTERNAL STRUCTURES AND CHARACTERISTICS DIFFERENTIATING ONE FROM ANOTHER.
   UF  ATOMIC RADII
   BT  ATOMIC PROPERTIES
   NT  ATOMIC ENERGY LEVELS
   NT  ATOMIC ORBITALS

ATOMIC TRANSMUTATION
   Use  NUCLEAR REACTIONS

ATOMIC WARFARE
   Use  NUCLEAR WARFARE

ATOMIC WEIGHT
   Use  ATOMIC PROPERTIES

ATOMIZATION
SN: CONVERSION OF A LIQUID OR SOLID TO A FINE SPRAY, MINUTE PARTICLES, OR LIGHT DUST.
   UF  NEBULIZATION
   RT  AEROSOL GENERATORS

ATOMS
   NT  ADATOMS
   NT  RECOIL ATOMS
   NT  STRIPPED ATOMS
   RT  ATOMIC PROPERTIES

ATP
   Use  ADENOSINE PHOSPHATES

ATROPHY
   NT  LIPOATROPHY
   RT  DETERIORATION

ATROPINE
   BT  BELLADONNA ALKALOIDS
   BT  NITROGEN HETEROCYCLIC COMPOUNDS

ATROPINE TOLERANCE
   Use  TOXIC TOLERANCES

ATTACHMENT
   BT  JOINING
   NT  MOORING
   NT  TETHERING
   RT  ADAPTERS

ATTACK
   NT  ANGLE OF ATTACK
   NT  BOMBARDMENT(ATTACK)
   NT  RAIDS
   NT  TORPEDO ATTACK
   RT  ACTIVE DEFENSE
   RT  ASSAULT

ATTACK AIRCRAFT
   BT  TACTICAL AIRCRAFT
   NT  ATTACK BOMBERS
   NT  ATTACK HELICOPTERS

ATTACK BOMBERS
   BT  ATTACK AIRCRAFT
   BT  BOMBER AIRCRAFT

ATTACK HELICOPTERS
   BT  ATTACK AIRCRAFT
   BT  HELICOPTERS

ATTACK SUBMARINES
   BT  SUBMARINES

ATTENTION
   UF  ALERTNESS
   BT  BEHAVIOR
   RT  CONSCIOUSNESS
   RT  VIGILANCE

ATTENUATION
   BT  LOSSES
   NT  ACOUSTIC ATTENUATION
   NT  ATMOSPHERIC ATTENUATION
   NT  RADIATION ATTENUATION
   NT  TRANSMISSION LOSS
   RT  ATTENUATORS

ATTENUATORS
   NT  MUFFLERS
   RT  ATTENUATION
   RT  BAFFLES

ATTITUDE CONTROL SYSTEMS
SN: THE PART OF THE FLIGHT CONTROL SYSTEM THAT DIRECTS AND MAINTAINS THE DESIRED ATTITUDE OF AN AIRCRAFT OR SPACECRAFT.
   BT  FLIGHT CONTROL SYSTEMS
   NT  THRUST VECTOR CONTROL SYSTEMS

ATTITUDE(INCLINATION)
   BT  ORIENTATION(DIRECTION)
   NT  LEVELING
   NT  PITCH(INCLINATION)
   NT  ROLL
   NT  SATELLITE ATTITUDE
   NT  SKEWNESS
   NT  TILT
   NT  YAW

ATTITUDE INDICATORS
   UF  AIRSTREAM DIRECTION DETECTORS
   UF  TURN AND BANK INDICATORS
   BT  FLIGHT INSTRUMENTS
   NT  HORIZON SCANNERS
   NT  HORIZONTAL INDICATORS
   NT  YAWMETERS
   RT  TURNING FLIGHT

ATTITUDES(PSYCHOLOGY)
   BT  BEHAVIOR
   NT  COOPERATION
   RT  ADJUSTMENT(PSYCHOLOGY)

ATTORNEYS
   BT  PERSONNEL
   RT  LITIGATION

ATTRITION
   BT  MILITARY TACTICS

AUDIO AMPLIFIERS
   UF  AUDIOFREQUENCY AMPLIFIERS
   BT  AMPLIFIERS

AUDIO FREQUENCY
SN: 15 TO 20,000 HZ.
   UF  AUDIOFREQUENCY
   BT  FREQUENCY
   RT  SOUND WAVES

AUDIO TAPES
   BT  TAPES

AUDIO TONES
   BT  SOUND

AUDIOFREQUENCY
   Use  AUDIO FREQUENCY

AUDIOFREQUENCY AMPLIFIERS
   Use  AUDIO AMPLIFIERS

AUDIOLOGISTS
SN: 01-OCT-1999
   BT  MEDICAL PERSONNEL
   RT  HEARING
   RT  OTORHINOLARYNGOLOGY

AUDIOMETERS
   Use  AUDIOMETRY

AUDIOMETRY
SN: THE MEASUREMENT AND TESTING OF HEARING ACUITY FOR VARIATIONS IN SOUND INTENSITY AND PITCH AND FOR TONAL PURITY.
   UF  AUDIOMETERS
   RT  ACOUSTIC MEASUREMENT

AUDIOVISUAL AIDS
   BT  VISUAL AIDS

AUDITING
   BT  ACCOUNTING

AUDITORY ACUITY
   BT  ACUITY
   BT  HEARING

AUDITORY DEFECTS
   NT  DEAFNESS

AUDITORY NERVE
   BT  CRANIAL NERVES
   RT  COCHLEAR NERVE

AUDITORY PERCEPTION
   BT  PERCEPTION
   NT  PSYCHOACOUSTICS
   RT  PERCEPTION(PSYCHOLOGY)

AUDITORY SIGNALS
   UF  CHIMES
   BT  ACOUSTIC SIGNALS

AUGER ELECTRON SPECTROSCOPY
   BT  ELECTRON SPECTROSCOPY
   NT  AUGER ELECTRONS

AUGER ELECTRONS
   BT  AUGER ELECTRON SPECTROSCOPY
   BT  ELECTRONS

AUGERS
   BT  TOOLS

AUGMENTATION
   UF  ENHANCEMENT
   NT  OPTICAL AUGMENTATION
   NT  THRUST AUGMENTATION

AURORAE
   BT  IONOSPHERIC DISTURBANCES
   RT  ELECTRICAL CORONA

ausforming
   Use  HOT WORKING

AUSTENITE
   BT  STEEL

AUSTRALIA
   BT  GEOGRAPHIC AREAS

AUSTRIA
   BT  CENTRAL EUROPE
   BT  EUROPEAN UNION
   BT  WESTERN EUROPE
   RT  GERMAN LANGUAGE

AUTOCLAVES
   BT  CONTAINERS

AUTOCORRELATION
   BT  CORRELATION TECHNIQUES

AUTOCOVARIANCE FUNCTIONS
   Use  STATISTICAL FUNCTIONS

AUTOFRETTAGE
   BT  METALWORKING

autogyro blades
   Use  AUTOGYRO ROTORS

AUTOGYRO ROTORS
   UF  autogyro blades
   BT  rotor blades(rotary wings)

AUTOGYROS
   BT  ROTARY WING AIRCRAFT

AUTOIGNITION
SN: SPONTANEOUS IGNITION OF FUELS OR PROPELLANTS OWING TO HIGH ENGINE TEMPERATURES, CHEMICAL IMPURITIES, ETC.
   UF  SELF-IGNITION
   BT  IGNITION
   RT  SPONTANEOUS COMBUSTION

AUTOIMMUNE DISEASES
   BT  DISEASES

AUTOIMMUNE REACTIONS
   BT  IMMUNITY

AUTOIMMUNIZATION
   BT  IMMUNIZATION

AUTOINJECTION
   Use  AUTOINTRUSION

AUTOINTRUSION
SN: 01-MAY-1983 - A PROCESS WHEREIN THE RESIDUAL LIQUID OFA DIFFERENTIATING MAGMA IS DRAWN INTO RIFTS FORMED IN THE CRYSTAL MESH AT A LATE STAGE BY DEFORMATION OF UNSPECIFIED ORIGIN.
   UF  AUTOINJECTION

AUTOMATA
   BT  INFORMATION THEORY
   RT  ARTIFICIAL INTELLIGENCE
   RT  ROBOTICS
   RT  SENSOR FUSION

AUTOMATIC
   BT  SELF OPERATION
   NT  SEMIAUTOMATIC

AUTOMATIC FREQUENCY CONTROL
   UF  AFC

AUTOMATIC GAIN CONTROL
   UF  AGC(ELECTRONICS)
   UF  AUTOMATIC VOLUME CONTROL

AUTOMATIC PILOTS
SN: DEVICES FOR MAINTAINING A PRE-DETERMINEDCOURSE OR FLIGHT ATTITUDE FOR AN AIRCRAFT, MISSILE, ETC.
   UF  AUTOPILOTS
   BT  FLIGHT CONTROL SYSTEMS

AUTOMATIC PROGRAMMING
   BT  COMPUTER PROGRAMMING

AUTOMATIC TRACKING
   BT  TRACKING

AUTOMATIC TRANSMISSIONS
   BT  TRANSMISSIONS(MECHANICAL)

AUTOMATIC VOICE NETWORK
   BT  COMMUNICATIONS NETWORKS

AUTOMATIC VOLUME CONTROL
   Use  AUTOMATIC GAIN CONTROL

AUTOMATIC WEAPONS
   BT  WEAPONS
   NT  MACHINE GUNS

AUTOMATION
   BT  ADAPTIVE CONTROL SYSTEMS

AUTOMOBILE EXHAUST
   BT  AIR POLLUTION
   BT  EXHAUST GASES

AUTOMOBILES
   Use  PASSENGER VEHICLES

AUTOMOTIVE COMPONENTS
   BT  AUTOMOTIVE VEHICLES

AUTOMOTIVE ENGINEERING
   BT  ENGINEERING
   RT  AUTOMOTIVE ENGINEERS

AUTOMOTIVE ENGINEERS
   BT  ENGINEERS
   RT  AUTOMOTIVE ENGINEERING

AUTOMOTIVE FUELS
   BT  FUELS

AUTOMOTIVE INDUSTRY
SN: THE MANUFACTURE OF AUTOMOBILES, TRUCKS, AND OTHER SELF-PROPELLED DEVICES FOR THETRANSPORTATION OF PASSENGERS AND CARGO ON LAND.
   BT  INDUSTRIES

AUTOMOTIVE VEHICLES
   BT  PASSENGER VEHICLES
   NT  AUTOMOTIVE COMPONENTS
   NT  ELECTRIC AUTOMOBILES
   RT  TRUCKS

AUTONOMIC AGENTS
SN: DRUGS THAT ACT PERIPHERALLY, NOT ON AUTONOMIC NERVES, BUT DIRECTLY ON MUSCLE ANDGLAND CELLS.
   UF  GANGLIONIC BLOCKING AGENTS
   BT  DRUGS
   NT  PARASYMPATHOLYTIC AGENTS
   NT  PARASYMPATHOMIMETIC AGENTS
   NT  SYMPATHOLYTIC AGENTS
   NT  SYMPATHOMIMETIC AGENTS
   RT  AUTONOMIC NERVOUS SYSTEM

AUTONOMIC NERVOUS SYSTEM
   UF  ADRENERGIC NERVES
   UF  PARASYMPATHETIC NERVOUS SYSTEM
   BT  NERVOUS SYSTEM
   NT  CHOLINERGIC NERVES
   NT  SYMPATHETIC NERVOUS SYSTEM
   RT  AUTONOMIC AGENTS

AUTONOMOUS NAVIGATION
   BT  NAVIGATION

AUTONOMOUS WEAPONS
   Use  FIRE AND FORGET WEAPONS

AUTOPILOTS
   Use  AUTOMATIC PILOTS

AUTOPSY
   RT  DISSECTION

AUTORADIOGRAPHY
   UF  RADIOAUTOGRAPHY
   BT  RADIOGRAPHY

AUTOROTATION
   UF  WINDMILLING
   BT  ROTATION

AUTOSYNS
   Use  SYNCHROS

AUTOTRANSFORMERS
   BT  TRANSFORMERS
   BT  VOLTAGE DIVIDERS

AUTUMN
   BT  SEASONS

AUXILIARY
   NT  BACKUP SYSTEMS

AUXILIARY BRAKES
   Use  BRAKES

AUXILIARY GENERATORS
   Use  STANDBY GENERATORS

AUXILIARY POWER PLANTS
SN: SYSTEMS FOR GENERATING POWER THAT IS NOTAPPLIED TO THE PROPULSION OF A VEHICLE,BUT IS USED TO OPERATE PERIPHERAL EQUIPMENT.
   UF  POWER PLANTS(AUXILIARY)
   BT  BACKUP SYSTEMS
   BT  ELECTRIC POWER PLANTS

AUXINS
   Use  GROWTH SUBSTANCES

AVAILABILITY
SN: 01-SEP-1981 - THE QUALITY OR CONDITION OF BEING AVAILABLE. AVAILABLE IS THAT THAT CAN BE GOT, HAD OR REACHED, HANDY OR ACCESSIBLE.
   NT  ISOTOPE AVAILABILITY
   RT  OPERATIONAL READINESS

AVALANCHE DIODES
   UF  BREAKDOWN DIODES
   UF  ZENER DIODES
   BT  SEMICONDUCTOR DIODES
   NT  IMPATT DIODES

AVALANCHE EFFECT(ELECTRONICS)
   BT  ELECTRONICS
   RT  AVALANCHE PHOTODIODES

AVALANCHE PHOTODIODES
   BT  PHOTODIODES
   RT  AVALANCHE EFFECT(ELECTRONICS)

AVALANCHES
   UF  EARTH SLIDES
   UF  ROCK SLIDES
   UF  SNOW SLIDES

AVES
   Use  BIRDS

AVIATION ACCIDENTS
   UF  AIRCRAFT ACCIDENTS
   BT  ACCIDENTS
   NT  CRASH LANDINGS
   RT  DOWNED AIRCRAFT

AVIATION FUELS
   BT  FUELS
   NT  AVIATION GASOLINE

AVIATION GASOLINE
   BT  AVIATION FUELS
   BT  GASOLINE

AVIATION GOGGLES
SN: 01-NOV-1980 - PROTECTIVE EYE EQUIPMENT USED ESPECIALLYBY FLIGHT CREWS TO AVOID INJURY, SPLASH-BLINDNESS AND ASSOCIATED HAZARDS.
   BT  GOGGLES

AVIATION INJURIES
   BT  WOUNDS AND INJURIES

AVIATION MEDICINE
   BT  MEDICINE
   RT  AEROSPACE MEDICINE

AVIATION PERSONNEL
   BT  PERSONNEL
   NT  AERIAL GUNNERS
   NT  AIR TRAFFIC CONTROLLERS
   NT  AVIATION TECHNICIANS
   NT  FLIGHT CREWS
   NT  FLIGHT SURGEONS

AVIATION SAFETY
   BT  SAFETY
   NT  AIRWORTHINESS
   RT  AIR TRAFFIC CONTROL SYSTEMS

AVIATION TECHNICIANS
   BT  AVIATION PERSONNEL
   BT  TECHNICIANS

AVIONICS
   BT  ELECTRONICS
   NT  ASTRIONICS

AVOIDANCE
   NT  COLLISION AVOIDANCE
   NT  TERRAIN AVOIDANCE
   RT  COLLISIONS

AWARDS
   BT  MORALE
   RT  BENEFITS

AWARENESS
   BT  COGNITION
   NT  SITUATIONAL AWARENESS

AXES
   BT  COORDINATES

AXES(COORDINATES)
   Use  COORDINATES

AXIAL FLOW
   BT  AXISYMMETRIC FLOW
   RT  RADIAL FLOW

AXIAL FLOW COMPRESSOR BLADES
SN: ROTOR AND STATOR BLADES FOR AXIAL FLOW COMPRESSORS.
   BT  COMPRESSOR BLADES

AXIAL FLOW COMPRESSORS
SN: COMPRESSORS THAT FORCE THE FLUID IN A STRAIGHT LINE PARALLEL TO THE AXIS OF THE ROTATING IMPELLER.
   BT  ROTARY COMPRESSORS

AXIAL FLOW FANS
SN: FANS GENERATING FLUID FLOW PARALLEL TO THE AXIS OF ROTATION OF THE BLADES.
   BT  FANS
   NT  VANEAXIAL FANS

AXIAL-FLOW PUMPS
   Use  PROPELLER PUMPS

AXIAL FLOW TURBINE ROTORS
   BT  ROTORS
   BT  TURBINE COMPONENTS

AXIAL FLOW TURBINES
SN: TURBINES OPERATED BY THE PASSAGE OF A FLUID PARALLEL TO THE AXIS OF ROTATION OF THE ROTOR.
   BT  TURBINES

AXIAL LOADS
SN: 01-OCT-1992 - A FORCE WITH ITS RESULTANT PASSING THROUGH THE CENTROID OF A PARTICULAR SECTION AND BEING PERPENDICULAR TO THE PLANE OF THE SECTION.
   UF  UNIAXIAL LOADS
   BT  LOADS(FORCES)

AXIAL SUPERCHARGERS
   Use  SUPERCHARGERS

AXIALLY SYMMETRIC FLOW
   Use  AXISYMMETRIC FLOW

AXILLARY ARTERIES
   BT  ARTERIES

AXISYMMETRIC
   BT  SYMMETRY

AXISYMMETRIC FLOW
SN: FLOW OF FLUID THROUGH AN AXIALLY SYMMETRIC DEVICE SUCH THAT THE DIRECTION OF THEFLOW IS ALONG THE AXIS OF SYMMETRY.
   UF  AXIALLY SYMMETRIC FLOW
   BT  FLUID FLOW
   NT  ANNULAR FLOW
   NT  AXIAL FLOW

AXLE SHAFTS
   BT  SHAFTS(MACHINE ELEMENTS)
   BT  VEHICLE CHASSIS COMPONENTS

AXON PLASMA
   BT  NERVE FIBERS

AXONS
SN: 01-OCT-1992 - THE FINE TUBULAR EXTENSIONS DOWN WHICH IMPULSES FLOW TO THE NERVE TERMINAL.
   BT  NERVE CELLS
   RT  NEUROTRANSMITTERS

AZEOTROPES
   BT  SOLUTIONS(MIXTURES)

AZERBAIJAN
SN: 01-OCT-1994
   BT  CIS
   BT  SOUTHWEST ASIA

AZIDES
   BT  NITROGEN COMPOUNDS
   NT  LEAD AZIDES
   NT  SODIUM AZIDES

AZIDOTHYMIDINE
SN: 01-JUL-2003 - A SYNTHETIC THYMIDINE ANALOG THAT INHIBITS THE HUMAN IMMUNODEFICIENCY VIRUS THATCAUSES ACQUIRED IMMUNE DEFICIENCY SYNDROME.
   UF  AZT
   BT  CHEMOTHERAPEUTIC AGENTS
   RT  ACQUIRED IMMUNE DEFICIENCY SYNDROME

AZIMUTH
   BT  ORIENTATION(DIRECTION)

AZIMUTH GATING
   BT  GATES(CIRCUITS)

AZINES
   BT  PYRIDINES
   NT  OXAZINES
   NT  QUINOXALINES
   NT  TRIAZINES

AZOBENZENES
   BT  BENZENE COMPOUNDS

AZOIMIDE
   Use  HYDRAZOIC ACID

AZOLES
   BT  NITROGEN HETEROCYCLIC COMPOUNDS
   NT  BENZOXAZOLES
   NT  IMIDAZOLES
   NT  OXADIAZOLES
   NT  PYRAZOLES
   NT  PYRROLES
   NT  TETRAZOLES

AZORES
   BT  ATLANTIC OCEAN ISLANDS

AZOTEMIA
   Use  UREMIA

AZOTOBACTER
   BT  AZOTOBACTERACEAE

AZOTOBACTERACEAE
   BT  EUBACTERIALES
   NT  AZOTOBACTER

AZT
   Use  AZIDOTHYMIDINE

AZULENES
   BT  CYCLOALKENES
   BT  HETEROCYCLIC COMPOUNDS

B AGENTS
   BT  BIOLOGICAL WARFARE AGENTS

B BAND
   BT  ULTRAHIGH FREQUENCY

B LYMPHOCYTES
SN: 01-JUL-1998
   BT  LYMPHOCYTES

B TYPE STARS
   BT  STARS

BABESIA
   BT  HEMOSPORIDIA

BABIES
   Use  INFANTS

BABOONS
   BT  MONKEYS

BACILLACEAE
   UF  CLOSTRIDIUM HEMOLYTICUM
   UF  CLOSTRIDIUM HISTOLYTICUM
   BT  EUBACTERIALES
   NT  BACILLUS
   NT  CLOSTRIDIUM

BACILLARY DYSENTERY
   BT  DYSENTERY

BACILLUS
   BT  BACILLACEAE
   NT  BACILLUS ANTHRACIS
   NT  BACILLUS CEREUS
   NT  BACILLUS SUBTILIS
   NT  BACILLUS THURINGIENSIS
   NT  LEGIONELLA PNEUMOPHILA

BACILLUS ANTHRACIS
   UF  ANTHRAX BACILLUS
   BT  BACILLUS
   RT  ANTHRAX

BACILLUS BOTULINUS
   Use  CLOSTRIDIUM BOTULINUM

BACILLUS CEREUS
   BT  BACILLUS

BACILLUS GLOBIGII
   Use  BACILLUS SUBTILIS

BACILLUS SUBTILIS
   UF  BACILLUS GLOBIGII
   BT  BACILLUS

BACILLUS THURINGIENSIS
   BT  BACILLUS

BACK PRESSURE
   BT  PRESSURE

BACKBLAST
SN: A BLAST OF GASES TO THE REAR OF RECOILLESS WEAPONS, ROCKET LAUNCHERS AND ROCKET-ASSISTED TAKEOFF UNITS.
   BT  BLAST

BACKFILLS
   BT  CONSTRUCTION MATERIALS
   RT  EARTH FILLS

BACKFIRE ANTENNAS
   BT  DIRECTIONAL ANTENNAS

BACKFLOW
SN: 01-SEP-1981 - A FLOWING BACK OR RETURN TOWARD A SOURCE. THE ENTRANCE OF WATER OR OTHER LIQUIDFROM ANY BUT THE REGULAR SOURCE OF A POTABLE WATER SUPPLY SYSTEM.
   BT  FLUID FLOW

BACKGROUND
   RT  TARGET DISCRIMINATION

BACKGROUND NOISE
   BT  AMBIENT NOISE
   RT  SQUELCH

BACKGROUND RADIATION
   BT  RADIATION

BACKLASH
   BT  REACTION(PSYCHOLOGY)

BACKLOBES
   BT  ANTENNA LOBES

BACKPACKS
   BT  CONTAINERS
   BT  MANPORTABLE EQUIPMENT

BACKSCATTERING
   BT  SCATTERING
   RT  FORWARD SCATTERING
   RT  NUCLEAR SCATTERING

BACKUP SYSTEMS
   BT  AUXILIARY
   NT  AUXILIARY POWER PLANTS
   NT  STANDBY GENERATORS
   RT  STANDBY EQUIPMENT

BACKWARD WAVE AMPLIFIERS
   BT  MICROWAVE AMPLIFIERS
   RT  BACKWARD WAVE TUBES

BACKWARD WAVE OSCILLATORS
   BT  RADIOFREQUENCY OSCILLATORS
   RT  BACKWARD WAVE TUBES

BACKWARD WAVE TUBES
   BT  TRAVELING WAVE TUBES
   RT  BACKWARD WAVE AMPLIFIERS
   RT  BACKWARD WAVE OSCILLATORS

BACON
   BT  PORK

BACTEREMIA
   BT  BLOOD DISEASES
   BT  SIGNS AND SYMPTOMS
   RT  HYPOTENSION

BACTERIA
SN: NOTE: USE SPECIFIC BACTERIA NAMES IN COMBINATION WITH DISEASES TO DESCRIBE SPECIFIC DISEASES.
   BT  MICROORGANISMS
   NT  ACTINOMYCETALES
   NT  AEROBIC BACTERIA
   NT  ANAEROBIC BACTERIA
   NT  ASPOROGENOUS BACTERIA
   NT  BACTEROIDES
   NT  ENTERIC BACTERIA
   NT  EUBACTERIALES
   NT  GRAM NEGATIVE BACTERIA
   NT  GRAM POSITIVE BACTERIA
   NT  MYCOPLASMATALES
   NT  MYXOBACTERIALES
   NT  NITROBACTER
   NT  ORAL BACTERIA
   NT  PSEUDOMONADALES
   NT  RICKETTSIALES
   NT  SPIROCHAETALES
   RT  BACTERIOLOGY

BACTERIAL AEROSOLS
   BT  BIOLOGICAL AEROSOLS

BACTERIAL DISEASES
   BT  INFECTIOUS DISEASES
   NT  ANTHRAX
   NT  BACTERIAL PNEUMONIA
   NT  BRUCELLOSIS
   NT  CHOLERA
   NT  CONJUNCTIVITIS
   NT  IMPETIGO
   NT  LEPTOSPIROSIS
   NT  MELIOIDOSIS
   NT  RELAPSING FEVER
   NT  SALMONELLOSIS
   NT  SCARLET FEVER
   NT  TETANUS
   NT  TUBERCULOSIS
   NT  TULAREMIA
   NT  TYPHOID

BACTERIAL EXTRACTS
   BT  BIOLOGICAL EXTRACTS

BACTERIAL PNEUMONIA
SN: 01-OCT-1995
   BT  BACTERIAL DISEASES
   BT  PNEUMONIA

BACTERIAL TOXINS
   BT  TOXINS

BACTERICIDES
   Use  GERMICIDES

BACTERIOLOGICAL LABORATORIES
   Use  BIOLOGICAL LABORATORIES

BACTERIOLOGICAL WARFARE
   Use  BIOLOGICAL WARFARE

BACTERIOLOGY
   BT  MICROBIOLOGY
   RT  BACTERIA

BACTERIOPHAGES
   BT  VIRUSES
   NT  COLIPHAGE

BACTERIORHODOPSIN
   BT  CAROTENOIDS
   RT  OPTICAL FILTERS

BACTERIOSTATIC SUBSTANCES
   Use  CHEMOTHERAPEUTIC AGENTS

BACTERIUM TULARENSE
   Use  FRANCISCELLA TULARENSIS

BACTEROIDES
   BT  BACTERIA

BACTEROLYSINS
   Use  ANTIGENS

BAECKLUND TRANSFORMATIONS
   Use  TRANSFORMATIONS(MATHEMATICS)

BAFFIN BAY
SN: 01-OCT-1995 - A LARGE INLET OF THE ATLANTIC OCEAN BETWEEN GREENLAND AND BAFFIN ISLAND.
   BT  NORTH ATLANTIC OCEAN

BAFFIN ISLAND
   BT  ARCTIC OCEAN ISLANDS

BAFFLES
   BT  BARRIERS
   RT  ATTENUATORS
   RT  DEFLECTORS
   RT  PANELS
   RT  SHIELDING
   RT  SKIRTS

BAG CHARGES(GUN PROPELLANTS)
   Use  POWDER BAGS

BAGS
   UF  BAGS(CONTAINERS)
   UF  BRIEFCASES
   UF  LUGGAGE
   BT  CONTAINERS
   NT  SANDBAGS

BAGS(CONTAINERS)
   Use  BAGS

BAHAMA ISLANDS
   BT  ARCHIPELAGOES
   BT  WEST INDIES

BAHRAIN
SN: 01-SEP-1990 - AN INDEPENDENT STATE IN THE W. PERSIAN GULF CONSISTING OF A GROUP OF ISLANDS.
   BT  ARABIA

BAILOUT
   BT  ABANDONMENT
   RT  EJECTION
   RT  ESCAPE SYSTEMS

BAINITE
   BT  STEEL

BAJA CALIFORNIA
SN: 01-JUN-1989 - PENINSULA IN N. W. MEXICO SEPARATING THE CALIFORNIA GULF FROM THE PACIFIC OCEAN.
   BT  MEXICO
   BT  PENINSULAS

BALANCE
   NT  HEAT BALANCE
   RT  COMPENSATION

BALANCE OF POWER
   BT  MILITARY DOCTRINE

BALANCED AMPLIFIERS
   Use  PUSH PULL AMPLIFIERS

BALANCES
   UF  SCALES (WEIGHING)
   BT  MEASURING INSTRUMENTS
   NT  MICROBALANCES

BALANTIDIUM
   BT  CILIATA

BALL AMMUNITION
   BT  PROJECTILES

BALL BEARINGS
   BT  ANTIFRICTION BEARINGS

BALL JOINTS
   BT  JOINTS

BALL MILLS
   BT  GRINDERS

BALL POWDER PROPELLANTS
   BT  PROPELLANTS

BALL VALVES
   BT  VALVES

BALLAST
   BT  WEIGHT
   RT  LOAD DISTRIBUTION

BALLAST TANKS
   BT  TANKS(CONTAINERS)

BALLISTIC CAMERAS
   UF  TRAJECTORY CAMERAS
   BT  CAMERAS

BALLISTIC MISSILE INTERCEPT SYSTEMS
SN: 01-JUN-1989
   BT  ANTIMISSILE DEFENSE SYSTEMS
   NT  STRATEGIC DEFENSE INITIATIVE

BALLISTIC MISSILE SUBMARINES
   BT  NUCLEAR POWERED SUBMARINES
   RT  FLEET BALLISTIC MISSILES

BALLISTIC MISSILES
   Use  GUIDED MISSILES

BALLISTIC TRAJECTORIES
   BT  TRAJECTORIES
   NT  DEPRESSED TRAJECTORIES
   RT  GUIDED MISSILE TRAJECTORIES

BALLISTICS
SN: THE MOTION, BEHAVIOR, OR APPEARANCE OF OBJECTS THROWN, LAUNCHED, OR TRAJECTED BYAN APPLIED FORCE. FOR STUDIES OF THE FLIGHT PATHS OF SUCH OBJECTS, SEE TRAJECTORIES.
   NT  AEROBALLISTICS
   NT  EXTERIOR BALLISTICS
   NT  HYDROBALLISTICS
   NT  INTERIOR BALLISTICS
   NT  TERMINAL BALLISTICS
   RT  FLIGHT PATHS

BALLISTITE
   BT  EXPLOSIVES
   BT  SMOKELESS PROPELLANTS

BALLISTOCARDIOGRAPHY
   BT  CARDIOGRAPHY

BALLOON EQUIPMENT
   NT  BALLOONSONDES
   RT  BALLOONS

BALLOONS
SN: LIGHTER-THAN-AIR CRAFT HAVING NO MEANS OF PROPULSION.
   BT  aircraft
   BT  INFLATABLE STRUCTURES
   NT  BALLUTES
   NT  METEOROLOGICAL BALLOONS
   NT  POWERED BALLOONS
   RT  AIRSHIPS
   RT  BALLOON EQUIPMENT

BALLOONSONDES
   BT  BALLOON EQUIPMENT

BALLOTING(INTERIOR BALLISTICS)
   BT  INTERIOR BALLISTICS

BALLUTES
   BT  BALLOONS
   BT  PARACHUTES

BALSA WOOD
   Use  WOOD

BALTIC COUNTRIES
SN: 01-OCT-1991
   BT  EASTERN EUROPE
   NT  ESTONIA
   NT  LATVIA
   NT  LITHUANIA

BALTIC SEA
   BT  OCEANS

BANACH SPACE
   BT  FUNCTIONAL ANALYSIS
   NT  HILBERT SPACE
   RT  HARMONIC ANALYSIS

BANANA PLANTS
   BT  FARM CROPS

BANANAS
   Use  FRUITS

A BAND
   BT  VERY HIGH FREQUENCY

BAND GAPS
SN: 01-JUL-1999
   BT  ENERGY BANDS
   BT  ENERGY GAPS

BAND REJECTION FILTERS
   Use  BANDSTOP FILTERS

BAND-REJECTION FILTERS
   Use  BANDSTOP FILTERS

BAND SAWS
   Use  SAWS

BAND SELECTIVE AMPLIFIERS
   Use  BANDPASS AMPLIFIERS

BAND SPECTRA
   BT  ELECTROMAGNETIC SPECTRA

BAND STRUCTURES
   Use  BAND THEORY OF SOLIDS

BAND THEORY OF SOLIDS
   UF  BAND STRUCTURES
   BT  THEORY

BANDPASS AMPLIFIERS
   UF  BAND SELECTIVE AMPLIFIERS
   BT  AMPLIFIERS

BANDPASS FILTERS
   BT  FILTERS
   NT  CRYSTAL FILTERS
   NT  HIGH PASS FILTERS
   NT  LOW PASS FILTERS

BANDS(PROJECTILES)
   Use  ROTATING BANDS

BANDS(STRIPS)
   NT  SHEAR BANDS

BANDSTOP FILTERS
   UF  BAND REJECTION FILTERS
   UF  BAND-REJECTION FILTERS
   BT  FILTERS
   NT  NOTCH FILTERS
   RT  WAVEGUIDE FILTERS

BANDWIDTH
   NT  BROADBAND
   NT  NARROWBAND
   RT  FREQUENCY BANDS

BANGLADESH
SN: 01-JUN-1989 - A REPUBLIC, EAST OF INDIA ON THE BAY OF BENGAL. FORMERLY EAST PAKISTAN.
   BT  SOUTH ASIA

BANKING
   BT  FINANCE
   RT  SAVINGS

BANKING FLIGHT
   Use  TURNING FLIGHT

BANKRUPTCY
   BT  FINANCE

BANKS(WATERWAYS)
   BT  LANDFORMS
   RT  EMBANKMENTS
   RT  LEVEES

BAPTIFOLINE
   Use  ALKALOIDS

BAR CODES
   BT  CODING

BARBADOS
   BT  LESSER ANTILLES

BARBITALS
   Use  BARBITURATES

BARBITURATES
   UF  BARBITALS
   UF  PENTOTHAL SODIUM
   UF  THIOPENTAL SODIUM
   BT  ANESTHETICS
   RT  ANTICONVULSANTS
   RT  HYPNOTICS AND SEDATIVES
   RT  PENTOBARBITAL

BARBITURIC ACIDS
   BT  ORGANIC ACIDS
   NT  THIOBARBITURIC ACID

BARE BASES
   BT  MILITARY FACILITIES

BARENTS SEA
   BT  ARCTIC OCEAN

BARGAINING
   BT  NEGOTIATIONS

BARGES
SN: WORK VESSELS THAT ARE NOT ORDINARILY SELF-PROPELLED.
   BT  BOATS

BARIUM
   BT  ALKALINE EARTH METALS
   RT  BARIUM ALLOYS
   RT  BARIUM COMPOUNDS

BARIUM ALLOYS
   BT  ALLOYS
   RT  BARIUM

BARIUM CHLORATES
   BT  BARIUM COMPOUNDS
   BT  CHLORATES

BARIUM COMPOUNDS
   BT  ALKALINE EARTH COMPOUNDS
   NT  BARIUM CHLORATES
   NT  BARIUM FERRITES
   NT  BARIUM HALIDES
   NT  BARIUM TITANATES
   NT  YTTRIUM BARIUM COPPER OXIDES
   RT  BARIUM

BARIUM FERRITES
   BT  BARIUM COMPOUNDS
   BT  FERRITES

BARIUM HALIDES
   BT  BARIUM COMPOUNDS
   BT  HALIDES

BARIUM OXIDES
   BT  ALKALINE EARTH OXIDES

BARIUM STRONTIUM TITANATES
SN: 01-APR-1999
   BT  BARIUM TITANATES
   BT  STRONTIUM COMPOUNDS

BARIUM TITANATES
   BT  BARIUM COMPOUNDS
   BT  TITANATES
   NT  BARIUM STRONTIUM TITANATES

BARLEY
   BT  CEREALS
   BT  FARM CROPS

BARNACLES
   BT  CRUSTACEA
   RT  FOULING ORGANISMS

BAROMETERS
   BT  HEIGHT FINDING
   BT  METEOROLOGICAL INSTRUMENTS
   BT  PRESSURE GAGES
   RT  ALTIMETERS
   RT  MANOMETERS

BAROMETRIC PRESSURE
   UF  ATMOSPHERIC PRESSURE
   BT  METEOROLOGICAL PHENOMENA
   BT  PRESSURE
   NT  ISOBARS(PRESSURE)
   NT  MICROBAROMETRIC WAVES
   RT  PRESSURE GRADIENTS

BARRACKS
   BT  HOUSING(DWELLINGS)
   BT  MILITARY FACILITIES

BARRELS
   UF  CASKS
   UF  KEGS
   BT  CONTAINERS

BARRIER COATINGS
   BT  PROTECTIVE COATINGS
   RT  WATERPROOFING

BARRIERS
   BT  BLOCKING
   NT  BAFFLES
   NT  FENCES
   NT  VAPOR BARRIERS
   RT  CONSTRICTIONS

BARROW(ALASKA)
SN: Retired October 2011.
   BT  retired descriptors

BARS
   Use  RODS

BARTER ISLAND
   BT  ALASKA
   BT  ARCTIC OCEAN ISLANDS

BARTONELLA
   BT  BARTONELLACEAE
   NT  BARTONELLA BACILLIFORMIS

BARTONELLA BACILLIFORMIS
   BT  BARTONELLA

BARTONELLACEAE
   BT  RICKETTSIALES
   NT  BARTONELLA

BARYONS
   BT  ELEMENTARY PARTICLES
   NT  HYPERONS
   NT  NUCLEONS

BASALT
   UF  TRAP ROCK
   BT  IGNEOUS ROCK

BASE CLOSURES
SN: 01-OCT-1994 - PROCESS OF CLOSING OR GREATLY REDUCING THE SITE OF A MILITARY FACILITY AND PREPARING THE SITE FOR OTHER USES OUTSIDE THEDEPARTMENT OF DEFENSE.
   BT  MILITARY DOWNSIZING

BASE DETONATING FUZES
   BT  IMPACT FUZES

BASE FLOW
SN: FLUID FLOW AT THE BASE OR EXTREME AFT END OF A BODY.
   BT  FLUID FLOW

BASE LINES
   BT  LINES(GEOMETRY)

BASE METAL
   BT  METALS

BASE PRESSURE
   BT  PRESSURE
   RT  AERODYNAMIC DRAG

BASEMENTS
   BT  UNDERGROUND STRUCTURES

BASES(CHEMISTRY)
   BT  CHEMICALS
   NT  CAUSTICS
   NT  HYDROXIDES

BASES(STRUCTURES)
   BT  STRUCTURES
   NT  FOUNDATIONS(STRUCTURES)
   NT  SLABS(STRUCTURAL)

BASES(TRANSISTORS)
   BT  TRANSISTORS

BASIDIOMYCETES
   BT  FUNGI
   NT  RUSTS(FUNGI)
   NT  SMUTS(FUNGI)

BASINS(GEOGRAPHIC)
   BT  GEOGRAPHIC AREAS
   NT  OCEAN BASINS
   NT  STILLING BASINS

BASOPHILS
   BT  POLYMORPHONUCLEAR LEUKOCYTES

BATCH PROCESSING
   BT  PROCESSING

BATEMAN'S METHOD
   Use  INTEGRAL EQUATIONS

BATHS
   BT  HYGIENE

BATHYAL ZONES
   BT  OCEAN ENVIRONMENTS

BATHYMETRY
   BT  OCEANOGRAPHIC DATA
   RT  HYDROGRAPHY

BATHYTHERMOGRAPH DATA
   BT  OCEANOGRAPHIC DATA

BATHYTHERMOGRAPHS
   BT  OCEANOGRAPHIC EQUIPMENT
   BT  THERMOGRAPHS

BATHYVESSELS
   Use  UNDERWATER VEHICLES

BATRACHIA
   Use  AMPHIBIANS

BATS
   BT  MAMMALS

BATTALION LEVEL ORGANIZATIONS
   BT  REGIMENT LEVEL ORGANIZATIONS
   NT  COMPANY LEVEL ORGANIZATIONS
   NT  SEABEES

BATTERIES(ELECTRICAL)
   Use  ELECTRIC BATTERIES

BATTERY CHARGERS
   BT  ELECTRICAL EQUIPMENT
   RT  ELECTRIC BATTERIES

BATTERY COMPARTMENTS
   BT  BATTERY COMPONENTS

BATTERY COMPONENTS
   UF  BIAS BATTERIES
   BT  ELECTRIC BATTERIES
   NT  BATTERY COMPARTMENTS
   NT  BATTERY SEPARATORS

BATTERY SEPARATORS
   BT  BATTERY COMPONENTS

BATTLE GROUP LEVEL ORGANIZATIONS
SN: 01-DEC-1984 - A STANDING NAVAL TASK FORCE CONSISTING OF A CARRIER, SURFACE COMBATANTS AND SUBMARINES ASSIGNED IN DIRECT SUPPORT, OPERATING IN MUTUAL SUPPORT WITH THE TASK OF DESTROYING HOSTILE FORCES WITHIN THE ASSIGNED AREA OF RESPONSIBILITY.
   BT  MILITARY ORGANIZATIONS

BATTLE MANAGEMENT
SN: 01-OCT-1995
   BT  TACTICAL WARFARE
   RT  BATTLES

BATTLEFIELDS
   UF  BATTLESPACE
   BT  COMBAT AREAS
   RT  FORWARD AREAS
   RT  REAR AREAS

BATTLES
   BT  WARFARE
   NT  AIR LAND BATTLES
   NT  COMBAT EFFECTIVENESS
   NT  ORDER OF BATTLE
   RT  BATTLE MANAGEMENT
   RT  CASUALTIES

BATTLESHIPS
   UF  BB(VESSELS)
   BT  NAVAL VESSELS(COMBATANT)

BATTLESPACE
   Use  BATTLEFIELDS

BAYES THEOREM
   BT  PROBABILITY
   BT  THEOREMS
   RT  STATISTICAL SAMPLES

BAYONETS
   BT  KNIVES
   RT  RIFLES

BAYS
   BT  GEOGRAPHIC AREAS
   NT  BENGAL BAY
   NT  BUZZARDS BAY
   NT  CHESAPEAKE BAY
   NT  DELAWARE BAY
   NT  FUNDY BAY
   NT  HUDSON BAY
   NT  MASSACHUSETTS BAY
   NT  NARRAGANSETT BAY
   NT  PASSAMAQUODDY BAY
   NT  PUGET SOUND
   NT  SAN DIEGO BAY
   NT  SAN FRANCISCO BAY

BAYS(STRUCTURAL UNITS)
   BT  STRUCTURAL COMPONENTS

BAZOOKAS
   BT  ROCKET LAUNCHERS

BB(VESSELS)
   Use  BATTLESHIPS

BEACH EROSION
   BT  SOIL EROSION
   RT  BEACHES

BEACH HEADS
   BT  AMPHIBIOUS OPERATIONS

BEACHES
   BT  SHORES
   RT  BEACH EROSION
   RT  DUNES
   RT  LAGOONS(LANDFORMS)
   RT  LITTORAL DRIFT

BEACON LIGHTS
   BT  BEACONS
   BT  NAVIGATIONAL LIGHTS

BEACONS
SN: DEVICES THAT GUIDE OR ORIENT, USUALLY BYMEANS OF VISIBLE OR ELECTRONIC SIGNALS.
   BT  NAVIGATIONAL AIDS
   NT  BEACON LIGHTS
   NT  INFRARED BEACONS
   NT  RADAR BEACONS
   NT  RADIO BEACONS
   NT  RESCUE BEACONS
   NT  SONAR BEACONS

BEAM EQUATIONS
   Use  DIFFERENTIAL EQUATIONS

BEAM FORMING
   BT  OPTICAL PHENOMENA
   RT  BEAM STEERING
   RT  ELECTRON LENSES

BEAM HOLES
   UF  BEAM PORTS
   UF  BEAM TUBES(NUCLEAR)
   BT  REACTOR SYSTEM COMPONENTS

BEAM LEAD TECHNOLOGY
   RT  BEAM LEADS

BEAM LEADS
   BT  CIRCUIT INTERCONNECTIONS
   BT  ELECTRIC TERMINALS
   RT  BEAM LEAD TECHNOLOGY

BEAM PORTS
   Use  BEAM HOLES

BEAM POWER TUBES
   BT  ELECTRON TUBES

BEAM RIDER TRAJECTORIES
   BT  FLAT TRAJECTORIES

BEAM STEERING
   BT  OPTICAL PHENOMENA
   BT  STEERING
   RT  BEAM FORMING
   RT  RADIATION PATTERNS

BEAM TUBES(NUCLEAR)
   Use  BEAM HOLES

BEAMS(ELECTROMAGNETIC)
   BT  BEAMS(RADIATION)
   BT  ELECTROMAGNETIC RADIATION
   NT  LASER BEAMS
   NT  RADIO BEAMS

BEAMS(PARTICLE)
   Use  PARTICLE BEAMS

BEAMS(RADIATION)
   NT  ACOUSTIC BEAMS
   NT  BEAMS(ELECTROMAGNETIC)
   NT  MICROBEAMS
   NT  MULTIPLE BEAMS(RADIATION)
   NT  NARROW BEAMS(RADIATION)
   NT  PARTICLE BEAMS
   RT  COHERENT RADIATION
   RT  PHOTON BEAMS

BEAMS(STRUCTURAL)
   BT  STRUCTURAL COMPONENTS
   NT  BOX BEAMS
   NT  CANTILEVER BEAMS
   NT  GIRDERS
   NT  TIMOSHENKO BEAM
   NT  WEB BEAMS

BEAN PLANTS
   BT  FARM CROPS

BEANS
   BT  VEGETABLES

BEARING CAGES
   BT  BEARINGS

BEARING CAPACITY
SN: 01-OCT-1992 - LOAD PER UNIT AREA WHICH CAN BE SAFELY SUPPORTED BY THE GROUND OR FLOOR.
   BT  STRUCTURAL PROPERTIES
   RT  BEARING STRENGTH

BEARING(DIRECTION)
   BT  ORIENTATION(DIRECTION)
   RT  ALIGNMENT
   RT  DIRECTION FINDING

BEARING RACES
   BT  BEARINGS

BEARING ROLLERS
   BT  ROLLERS
   RT  BEARINGS

BEARING STRENGTH
   BT  COMPRESSIVE PROPERTIES
   BT  SHEAR PROPERTIES
   RT  BEARING CAPACITY

BEARINGS
   NT  ANTIFRICTION BEARINGS
   NT  BEARING CAGES
   NT  BEARING RACES
   NT  FOIL BEARINGS
   NT  JEWEL BEARINGS
   NT  THRUST BEARINGS
   RT  BEARING ROLLERS
   RT  FRICTION
   RT  GIMBALS

BEAT SIGNALS
   BT  SIGNALS

BEAUFORT SEA
   BT  ARCTIC OCEAN

BED REST
   BT  REST

BEDDING
   UF  HAMMOCKS
   NT  BLANKETS
   NT  MATTRESSES
   NT  SLEEPING BAGS

BEDS(PROCESS ENGINEERING)
   BT  INDUSTRIAL ENGINEERING
   RT  FLUIDIZED BED PROCESSORS
   RT  PERCOLATION

BEEF
   BT  MEAT
   RT  BOVINES

BEES
   Use  HYMENOPTERA

BEESWAX
   BT  WAXES

BEETLES
   Use  COLEOPTERA

BEHAVIOR
   BT  PSYCHOLOGY
   NT  ADJUSTMENT(PSYCHOLOGY)
   NT  ANIMAL COMMUNICATION
   NT  ATTENTION
   NT  ATTITUDES(PSYCHOLOGY)
   NT  EMOTIONS
   NT  HABITS
   NT  NESTING(ANIMALS)
   NT  PERFORMANCE(HUMAN)
   NT  REACTION(PSYCHOLOGY)
   NT  ROLES(BEHAVIOR)
   NT  STRESS(PSYCHOLOGY)
   NT  VERBAL BEHAVIOR
   NT  VIGILANCE
   RT  BEHAVIORAL SCIENCES
   RT  MIGRATION

BEHAVIORAL GENETICS
SN: The field of study that examines the role of genetics in animal (including human) behaviour. Often associated with the "nature versus nurture" debate, behavioural genetics is highly interdisciplinary, involving contributions from biology, genetics, ethology, psychology, and statistics. Behavioural geneticists study the inheritance of behavioural traits. In humans, this information is often gathered through the use of the twin study or adoption study. In animal studies, breeding, transgenesis, and gene knockout techniques are common. (July 2011)
   UF  behavioral neurogenetics
   UF  psychiatric genetics
   BT  GENETICS

behavioral neurogenetics
   Use  BEHAVIORAL GENETICS

BEHAVIORAL SCIENCES
   NT  PSYCHOLOGY
   NT  PSYCHOPHYSICS
   RT  BEHAVIOR
   RT  DEVELOPMENTAL PSYCHOLOGY
   RT  SOCIAL SCIENCES

BELARUS
SN: 01-OCT-1994
   BT  CIS
   BT  EASTERN EUROPE

BELGIUM
   BT  EUROPEAN COMMUNITIES
   BT  EUROPEAN UNION
   BT  WESTERN EUROPE
   RT  DUTCH LANGUAGE

BELIZE
   BT  CENTRAL AMERICA

BELL NOZZLES
   BT  NOZZLES

BELLADONNA ALKALOIDS
   UF  HYOSCYAMINE
   BT  TROPANE ALKALOIDS
   NT  ATROPINE

BELLMAN'S INEQUALITY
   Use  INEQUALITIES

BELLMAN'S SEARCH PROBLEM
   Use  GAME THEORY

BELLOWS
   BT  AIR SUPPLIES

BELTS
   NT  POWER TRANSMISSION BELTS
   RT  STRAPS

BELTS(MACHINERY)
   Use  POWER TRANSMISSION BELTS

BENCH TESTS
   BT  TEST METHODS

BENDING
   BT  MECHANICAL PROPERTIES

BENDING BRAKES
   Use  METAL FORMING BRAKES

BENDING MOMENTS
   BT  MOMENTS
   RT  BENDING STRESS

BENDING STRESS
   BT  STRESSES
   RT  BENDING MOMENTS
   RT  FLEXURAL STRENGTH

BENDS(PHYSIOLOGY)
   Use  DECOMPRESSION SICKNESS

BENEFICIATION
   Use  PURIFICATION

BENEFITS
   NT  FRINGE BENEFITS
   RT  AWARDS

BENGAL BAY
   BT  BAYS

BENTHONIC ZONES
SN: 01-MAY-1981
   BT  OCEAN ENVIRONMENTS
   NT  ABYSSAL ZONES
   NT  LITTORAL ZONES

BENTONITE
   Use  CLAY MINERALS

BENZALDEHYDES
   BT  ALDEHYDES

BENZENE
   BT  AROMATIC HYDROCARBONS
   NT  HEXAFLUOROBENZENE
   NT  NITROBENZENES

BENZENE COMPOUNDS
   BT  AROMATIC HYDROCARBONS
   NT  AZOBENZENES
   NT  CHLOROBENZENE

BENZENEBORONIC ACID
   BT  ACIDS

BENZIMIDAZOLES
   BT  HETEROCYCLIC COMPOUNDS

BENZOATES
   BT  ESTERS
   NT  SALICYLATES

BENZOIC ACIDS
   BT  CARBOXYLIC ACIDS
   NT  ANTHRANILIC ACID
   NT  SALICYLIC ACIDS
   NT  TANNIC ACID

BENZOIN
   BT  ORGANIC COMPOUNDS

BENZONITRILES
   BT  NITRILES

BENZOPHENONES
   BT  KETONES

BENZOQUINONES
   Use  QUINONES

BENZOXAZOLES
   BT  AZOLES

BENZYL RADICALS
   BT  ARYL RADICALS

BERGMAN INTEGRATION
   Use  INTEGRATION

BERING SEA
   BT  NORTH PACIFIC OCEAN
   RT  BERING STRAIT

BERING STRAIT
   BT  STRAITS
   RT  BERING SEA

BERKELIUM
   BT  ACTINIDE SERIES
   BT  TRANSURANIUM ELEMENTS
   RT  BERKELIUM COMPOUNDS

BERKELIUM COMPOUNDS
   BT  TRANSURANIUM COMPOUNDS
   RT  BERKELIUM

BERLIN
   BT  GERMANY
   RT  URBAN AREAS

BERMUDA
   BT  ATLANTIC OCEAN ISLANDS

BERNOULLI DISTRIBUTION
   BT  DISTRIBUTION

BERNSTEIN'S THEOREM
   Use  COMPLEX VARIABLES

BERYL
   BT  ROCK FORMING MINERALS

BERYLLIDES
   BT  BERYLLIUM COMPOUNDS

BERYLLIUM
   BT  ALKALINE EARTH METALS
   RT  BERYLLIUM ALLOYS
   RT  BERYLLIUM COMPOUNDS

BERYLLIUM ALLOYS
   BT  ALLOYS
   RT  BERYLLIUM

BERYLLIUM COMPOUNDS
   BT  ALKALINE EARTH COMPOUNDS
   NT  BERYLLIDES
   RT  BERYLLIUM

BERYLLIUM OXIDES
   BT  ALKALINE EARTH OXIDES

BESSEL FUNCTIONS
   BT  SPECIAL FUNCTIONS(MATHEMATICS)
   RT  POWER SERIES

BETA COUNTERS
SN: 01-SEP-1990 - INSTRUMENTS THAT COUNT BETA PARTICLES.
   BT  PARTICLE COUNTERS
   BT  RADIATION MEASURING INSTRUMENTS

BETA DECAY
   BT  RADIOACTIVE DECAY
   NT  ELECTRON CAPTURE
   RT  BETA PARTICLE REACTIONS

BETA PARTICLE REACTIONS
   BT  NUCLEAR REACTIONS
   RT  BETA DECAY

BETA PARTICLES
   BT  CORPUSCULAR RADIATION
   BT  ELECTRONS
   BT  IONIZING RADIATION
   BT  LEPTONS
   BT  NUCLEAR RADIATION

BETA RAY SPECTROMETERS
   Use  NUCLEAR RADIATION SPECTROMETERS

BETA RAY SPECTROSCOPY
SN: STUDIES OF THE MOMENTUM SPECTRA OF BETA RAYS, PHOTOELECTRONS, AND CONVERSION ELECTRONS.
   BT  NUCLEAR RADIATION SPECTROSCOPY
   RT  BETA RAY SPECTRUM

BETA RAY SPECTRUM
SN: THE DISTRIBUTION IN ENERGY OR MOMENTUM OF THE BETA PARTICLES (NOT INCLUDING CONVERSION ELECTRONS) EMITTED IN A BETA-DECAY PROCESS.
   BT  PARTICLE SPECTRA
   RT  BETA RAY SPECTROSCOPY

BETATRONS
   BT  ELECTRON ACCELERATORS
   RT  SYNCHROTRONS

BEVATRONS
   RT  SYNCHROCYCLOTRONS

BEVERAGE ANTENNAS
   BT  ANTENNAS

BEVERAGES
   BT  FOOD
   NT  ALCOHOLIC BEVERAGES
   NT  COFFEE
   NT  FRUIT JUICES
   NT  MILK
   NT  TEA

BHANGMETERS
   BT  MEASURING INSTRUMENTS

BIAS
   BT  DISCRIMINATION

BIAS BATTERIES
   Use  BATTERY COMPONENTS

BIAXIAL STRESSES
   BT  STRESSES

BIBLIOGRAPHIES
   BT  DOCUMENTS
   NT  ANNOUNCEMENT BULLETINS
   RT  LITERATURE SURVEYS

BICARBONATES
   BT  CARBONATES

BICEPS
   BT  MUSCLES

BICONICAL ANTENNAS
SN: ANTENNAS FORMED BY TWO CONICAL CONDUCTORS HAVING A COMMON AXIS AND VERTEX, AND EXCITED AT THE VERTEX.
   BT  CONICAL ANTENNAS

BICYCLIC STRUCTURE(MATHEMATICS)
   Use  GROUPS(MATHEMATICS)

BIEBERBACH CONJECTURE
   Use  COMPLEX VARIABLES

BIFURCATION(BIOLOGY)
SN: 01-MAY-1983 - POINT AT WHICH DIVISION OCCURS BIOLOGICALLY.
   NT  CELL DIVISION

BIFURCATION(MATHEMATICS)
SN: 01-MAY-1983 - POINT AT WHICH DIVISION OCCURS MATHEMATICALLY.
   BT  PARAMETRIC ANALYSIS

BIHARMONIC FUNCTIONS
   BT  FUNCTIONS(MATHEMATICS)

BIKINI ATOLL
   BT  ATOLLS
   BT  MARSHALL ISLANDS

BILE
   UF  BILE ACIDS
   BT  BODY FLUIDS
   RT  BILE PIGMENTS
   RT  GALLBLADDER

BILE ACIDS
   Use  BILE

BILE DUCTS
   BT  BILIARY SYSTEM

BILE PIGMENTS
   UF  BILIVERDIN
   UF  UROBILIN
   UF  UROBILINOGEN
   BT  ORGANIC PIGMENTS
   NT  BILIRUBIN
   RT  BILE

BILGE KEELS
   BT  SHIP KEELS
   RT  BILGES

BILGES
   BT  SHIP HULLS
   RT  BILGE KEELS

BILIARY SYSTEM
   UF  HEPATIC DUCTS
   BT  GASTROINTESTINAL SYSTEM
   NT  BILE DUCTS
   NT  GALLBLADDER

BILINEURINE
   Use  CHOLINES

BILIRUBIN
   BT  BILE PIGMENTS

BILIVERDIN
   Use  BILE PIGMENTS

BILLETS
   NT  BILLETS(MATERIALS)
   RT  BILLETS(PERSONNEL)

BILLETS(MATERIALS)
   BT  BILLETS

BILLETS(PERSONNEL)
   BT  ALLOCATIONS
   RT  BILLETS
   RT  MANPOWER UTILIZATION

BIMETALS
SN: 01-DEC-1984 - LAMINATES OF TWO DISSIMILAR METALS WITH DIFFERENT COEFFICIENTS OF THERMAL EXPANSION, BONDED TOGETHER.
   RT  COMPOSITE MATERIALS

BINARY ALLOYS
   BT  ALLOYS

BINARY ARITHMETIC
   BT  NUMBER THEORY

BINARY CHEMICAL AGENTS
   BT  CHEMICAL AGENTS

BINARY COMPOUNDS
   BT  CHEMICAL COMPOUNDS

BINARY NOTATION
   BT  NUMBERS

BINARY PROCESSORS
   BT  CENTRAL PROCESSING UNITS

BINARY STARS
   BT  STARS

BINDERS
SN: SUBSTANCES THAT PRODUCE COHESION OR CONSISTENCY IN MATERIALS, THEREBY IMPARTING DESIRABLE CHEMICAL OR MECHANICAL PROPERTIES, ESPECIALLY AS USED IN PAINTS, PROPELLANTS, OR RUBBER. FOR SUBSTANCES USED TO JOIN MATERIALS BY ADHERING TO THEIR SURFACES, SEE ADHESIVES.
   NT  SOLID ROCKET PROPELLANT BINDERS
   RT  ADHESIVES

BINDING SITES(PHYSIOLOGY)
   Use  RECEPTOR SITES(PHYSIOLOGY)

BINET TESTS
   Use  INTELLIGENCE TESTS

BINOCULARS
   BT  OPTICAL EQUIPMENT
   NT  INFRARED BINOCULARS

BINOMIALS
   BT  POLYNOMIALS

BIOACOUSTICS
   BT  ACOUSTICS

BIOASSAY
   BT  ASSAYING
   RT  BIOCHEMISTRY

BIOASTRONAUTICS
   Use  SPACE BIOLOGY

BIOCHEMICAL EFFECTS
   Use  BIOCHEMISTRY

BIOCHEMICAL OXYGEN DEMAND
   UF  BIOLOGICAL OXYGEN DEMAND
   RT  WATER POLLUTION

BIOCHEMICAL REACTIVATION
   BT  BIOCHEMISTRY

BIOCHEMICAL TESTS
   Use  BIOCHEMISTRY

BIOCHEMISTRY
   UF  BIOCHEMICAL EFFECTS
   UF  BIOCHEMICAL TESTS
   UF  PHYSIOLOGICAL CHEMISTRY
   BT  CHEMISTRY
   NT  BIOCHEMICAL REACTIVATION
   NT  BLOOD CHEMISTRY
   NT  CALCIFICATION
   NT  CYTOCHEMISTRY
   NT  ENZYME CHEMISTRY
   NT  HISTOCHEMISTRY
   NT  HORMONES
   NT  IMMUNOCHEMISTRY
   NT  IN VITRO ANALYSIS
   NT  IN VIVO ANALYSIS
   NT  NEUROCHEMISTRY
   NT  PHEROMONES
   NT  PROTEOMICS
   NT  UREA
   RT  BIOASSAY
   RT  BIOPHYSICS

BIOCIDES
   BT  TOXINS AND ANTITOXINS
   NT  GERMICIDES
   NT  PESTICIDES

BIODEGRADABLE PLASTICS
SN: 01-APR-2007
   BT  PLASTICS
   RT  BIODEGRADATION

BIODEGRADATION
SN: 01-OCT-1993 - THE ACT OF BEING BROKEN DOWN, ESPECIALLYINTO INNOCUOUS PRODUCTS, BY THE ACTION OF LIVING THINGS (SUCH AS MICROORGANISMS).
   BT  DEGRADATION
   RT  BIODEGRADABLE PLASTICS
   RT  BIODETERIORATION

BIODETERIORATION
   BT  DETERIORATION
   NT  FUNGUS DETERIORATION
   RT  BIODEGRADATION

BIODYNAMICS
   BT  BIOPHYSICS
   RT  BIOMECHANICS

BIOELECTRICITY
   BT  ELECTRICITY
   NT  NERVE IMPULSES

bioenergy
   Use  BIOMASS

BIOENGINEERING
   BT  BIOLOGY
   BT  ENGINEERING
   NT  BIOMIMETICS
   NT  SYNTHETIC BIOLOGY
   RT  BIOPHYSICS

BIOFEEDBACK
   BT  FEEDBACK
   RT  HUMAN FACTORS ENGINEERING

BIOFLAVONOIDS
   Use  ANTHOXANTHIN PIGMENTS

biofuel
   Use  BIOMASS

BIOGEOGRAPHY
   BT  GEOGRAPHY
   NT  ZOOGEOGRAPHY

BIOGRAPHIES
   BT  DOCUMENTS

BIOINFORMATICS
   Use  BIOMEDICAL INFORMATION SYSTEMS

BIOINSTRUMENTATION
   BT  INSTRUMENTATION

BIOLOGICAL ABSORPTION
   BT  ABSORPTION
   NT  HYDROPHILIA
   NT  TRANSDERMAL ABSORPTION

BIOLOGICAL AEROSOLS
   BT  AEROSOLS
   NT  BACTERIAL AEROSOLS
   RT  AEROBIOLOGY

BIOLOGICAL AGENT DETECTORS
SN: 01-SEP-1981 - DETECTORS TO DETERMINE PRESENCE OF ANY OF THE VIRUSES, MICROORGANISMS AND TOXIC SUBSTANCES DERIVED FROM LIVING ORGANISMS, AND USED AS OFFENSIVE WEAPONS TO PRODUCE DEATH OR DISEASE IN HUMANS, ANIMALS, OR GROWING PLANTS.
   BT  DETECTORS
   RT  BIOLOGICAL AGENTS

BIOLOGICAL AGENTS
   NT  BIOLOGICAL WARFARE AGENTS
   RT  BIOLOGICAL AGENT DETECTORS

BIOLOGICAL ANTAGONISTS
   Use  ANTIMETABOLITES

BIOLOGICAL BOMBS
   BT  BOMBS

BIOLOGICAL CELLS
   Use  CELLS(BIOLOGY)

BIOLOGICAL CLOCKS
   Use  BIOLOGICAL RHYTHMS

BIOLOGICAL CONTAMINATION
   BT  CONTAMINATION

BIOLOGICAL DETECTION
   BT  DETECTION

BIOLOGICAL EXTRACTS
   NT  ALLERGENIC EXTRACTS
   NT  BACTERIAL EXTRACTS
   NT  TISSUE EXTRACTS
   RT  BIOLOGICAL PRODUCTS

BIOLOGICAL INACTIVATION
   BT  INACTIVATION

BIOLOGICAL INSECT CONTROL
   BT  INSECT CONTROL

BIOLOGICAL LABORATORIES
   UF  BACTERIOLOGICAL LABORATORIES
   BT  LABORATORIES

BIOLOGICAL OCEANOGRAPHY
   Use  MARINE BIOLOGY

BIOLOGICAL OXYGEN DEMAND
   Use  BIOCHEMICAL OXYGEN DEMAND

BIOLOGICAL PEST CONTROL
   BT  PEST CONTROL

BIOLOGICAL PRODUCTS
SN: MEDICINAL PREPARATIONS MADE FROM LIVING ORGANISMS AND THEIR PRODUCTS FOR DIAGNOSTIC AND PROPHYLACTIC USE SUCH AS ANTIBACTERIAL AND ANTIVIRAL SERUMS, TOXOIDS, ETC.
   NT  VACCINES
   RT  BIOLOGICAL EXTRACTS

BIOLOGICAL RHYTHMS
   UF  BIOLOGICAL CLOCKS
   UF  BREEDING CYCLES
   UF  RHYTHM(BIOLOGY)
   BT  CHRONOBIOLOGY
   NT  CIRCADIAN RHYTHMS
   NT  JET LAG

BIOLOGICAL STAINS
   BT  CHEMICAL AGENTS

BIOLOGICAL TISSUE PRESERVATION
SN: 01-APR-2000
   BT  HISTOLOGICAL TECHNIQUES
   BT  PRESERVATION
   NT  BLOOD PRESERVATION
   NT  TISSUE BANKS

BIOLOGICAL TISSUE STORAGE
   Use  TISSUE BANKS

BIOLOGICAL WARFARE
   UF  BACTERIOLOGICAL WARFARE
   BT  WARFARE
   NT  BIOLOGICAL WARFARE AGENTS
   RT  BIOLOGICAL WARFARE CASUALTIES

BIOLOGICAL WARFARE AGENTS
   BT  BIOLOGICAL AGENTS
   BT  BIOLOGICAL WARFARE
   NT  B AGENTS
   RT  BIOTERRORISM

BIOLOGICAL WARFARE CASUALTIES
   BT  CASUALTIES
   RT  BIOLOGICAL WARFARE

BIOLOGICAL WEED CONTROL
   BT  WEED CONTROL
   RT  HERBICIDES

BIOLOGISTS
   BT  SCIENTISTS

BIOLOGY
   BT  LIFE SCIENCES
   NT  AEROBIOLOGY
   NT  ANATOMY
   NT  AQUATIC BIOLOGY
   NT  BIOENGINEERING
   NT  BIOPHYSICS
   NT  BOTANY
   NT  CHRONOBIOLOGY
   NT  CRYOBIOLOGY
   NT  CULTURES(BIOLOGY)
   NT  CYTOLOGY
   NT  DEVELOPMENTAL BIOLOGY
   NT  EMBRYOLOGY
   NT  GENETICS
   NT  HEMATOLOGY
   NT  HISTOLOGY
   NT  MICROBIOLOGY
   NT  MOLECULAR BIOLOGY
   NT  MYCOLOGY
   NT  NEUROBIOLOGY
   NT  NEUROSCIENCE
   NT  PALEONTOLOGY
   NT  PARASITOLOGY
   NT  RADIOBIOLOGY
   NT  SYSTEMS BIOLOGY
   NT  TAXONOMY
   NT  ZOOLOGY
   RT  GLACIOLOGY

BIOLUMINESCENCE
   BT  LUMINESCENCE
   RT  PHOSPHORESCENCE

BIOMAGNETISM
   BT  MAGNETIC PROPERTIES

BIOMASS
SN: Plant materials and animal waste used as fuel. (July 2011)
   UF  bioenergy
   UF  biofuel
   BT  RENEWABLE ENERGY
   NT  BIOMASS CONVERSION

BIOMASS CONVERSION
SN: Retired September 2011. Use Biomass.
   BT  BIOMASS

BIOMATERIALS
SN: as a substance that has been engineered to take a form which, alone or as part of a complex system, is used to direct, by control of interactions with components of living systems, the course of any therapeutic or diagnostic procedure. (July 2011)
   BT  MATERIALS
   RT  MATERIALS SCIENCE

BIOMATERIALS ENGINEERING
   Use  MATERIALS ENGINEERING

BIOMATERIALS SCIENCE
   Use  MATERIALS SCIENCE

BIOMECHANICS
   BT  BIONICS
   RT  BIODYNAMICS

BIOMEDICAL ENGINEERING
SN: The application of engineering principles and design concepts to medicine and biology. This field seeks to close the gap between engineering and medicine: It combines the design and problem solving skills of engineering with medical and biological sciences to improve healthcare diagnosis, monitoring and therapy. (March 2011)
   BT  ENGINEERING
   NT  NEURAL ENGINEERING

BIOMEDICAL INFORMATION SYSTEMS
   UF  BIOINFORMATICS
   UF  MEDLINE
   BT  INFORMATION SYSTEMS

BIOMEDICINE
SN: is a branch of medical science that applies biological and other natural-science principles to clinical practice. Biomedicine involves the study of physiological processes with methods from biology, chemistry and physics. Approaches range from understanding molecular interactions to the study of the consequences at the in vivo level. These processes are studied with the particular point of view of devising new strategies for diagnosis and therapy.
   BT  MEDICINE
   NT  OTOLOGY
   NT  REGENERATIVE MEDICINE

BIOMETRIC SECURITY
SN: 01-OCT-2002
   BT  ANTHROPOMETRY
   BT  IDENTIFICATION SYSTEMS
   BT  SECURITY

BIOMETRICS
   Use  BIOMETRY

BIOMETRY
   UF  BIOMETRICS
   RT  BIOSTATISTICS

BIOMIMETICS
SN: 01-JUL-1998 - SYNTHETIC MATERIALS WHOSE STRUCTURE MIMICS BIOLOGICAL MATERIALS.
   BT  BIOENGINEERING
   BT  SYNTHESIS(CHEMISTRY)
   BT  SYNTHETIC MATERIALS

BIOMOLECULES
   BT  MOLECULES

BIONICS
SN: SIMULATION OF BIOLOGICAL PROCESS BY ELECTRONIC EQUIPMENT.
   NT  BIOMECHANICS
   NT  VIRTUAL REALITY
   RT  MAN MACHINE SYSTEMS
   RT  NEURISTORS

BIONOMICS
   Use  ECOLOGY

BIOPHYSICS
SN: THE APPLICATION OF PHYSICAL METHODS AND PRINCIPLES TO BIOLOGICAL PROBLEMS.
   BT  BIOLOGY
   BT  PHYSICS
   NT  BIODYNAMICS
   NT  BIOSONAR
   RT  BIOCHEMISTRY
   RT  BIOENGINEERING

BIOPIGMENTS
   Use  ORGANIC PIGMENTS

BIOPSY
   BT  DIAGNOSIS(MEDICINE)
   BT  EXCISION
   RT  CULTURES(BIOLOGY)

BIOSONAR
SN: 01-OCT-1998 - STUDY OF SONAR IN LIVING CREATURES.
   BT  BIOPHYSICS
   BT  SONAR

BIOSTATISTICS
   BT  STATISTICS
   NT  EPIDEMIOLOGY
   RT  BIOMETRY

BIOSYNTHESIS
SN: THE PRODUCTION OF CHEMICAL COMPOUNDS BY LIVING ORGANISMS.
   BT  SYNTHESIS
   NT  PHOTOSYNTHESIS

BIOTECHNOLOGY
SN: 01-DEC-1984 - THE APPLICATION OF ENGINEERING AND TECHNOLOGICAL PRINCIPLES TO THE LIFE SCIENCES, BOTH MEDICAL AND NONMEDICAL. (SELECTION AND DEVELOPMENT OF SUPERIOR CROPS AND LIVESTOCK THROUGH CROSS-BREEDING TECHNIQUES USING CODE OF GENES TO DESIGN SYSTEMS ON AN INDUSTRIAL SCALE TO REPRODUCE LIFE PROCESSES AND PRODUCTS FOUND IN NATURE).
   RT  CLONES
   RT  MEDICAL EQUIPMENT

BIOTELEMETRY
SN: 01-OCT-2001
   BT  DIAGNOSIS(MEDICINE)
   BT  TELEMETER SYSTEMS
   RT  TELEMEDICINE

BIOTERRORISM
SN: 01-APR-2002
   BT  TERRORISM
   RT  BIOLOGICAL WARFARE AGENTS

BIOTIN
   Use  VITAMIN B COMPLEX

BIPHENYL
   BT  AROMATIC HYDROCARBONS
   NT  POLYCHLORINATED BIPHENYLS
   NT  RUBRENES

BIPOLAR SYSTEMS
   BT  POLARITY

BIPOLAR TRANSISTORS
   BT  TRANSISTORS
   NT  HETEROJUNCTION BIPOLAR TRANSISTORS

BIPROPELLANTS
SN: ROCKET PROPELLANTS CONSISTING OF TWO COMPONENTS THAT ARE FED TO THE COMBUSTION CHAMBER SEPARATELY.
   BT  LIQUID PROPELLANTS

BIRD STRIKES
   BT  COLLISIONS

BIRDS
   UF  AVES
   UF  FOWL
   BT  VERTEBRATES
   NT  PIGEONS
   NT  SHOREBIRDS
   NT  WATERFOWL
   RT  POULTRY

BIREFRINGENCE
   UF  POCKELS EFFECT
   BT  ELECTROMAGNETIC PROPERTIES
   BT  NONLINEAR OPTICS
   RT  MOIRE EFFECTS
   RT  POCKELS CELLS

BIRTH
   UF  CHILDBIRTH
   UF  PARTURITION
   BT  FERTILITY
   NT  STILLBIRTHS

BISCYCLOPENTADIENONES
   BT  KETONES
   BT  PENTADIENES

BISMUTH
   BT  METALS
   RT  BISMUTH ALLOYS
   RT  BISMUTH COMPOUNDS

BISMUTH ALLOYS
   UF  BISMUTHIDES
   BT  ALLOYS
   RT  BISMUTH

BISMUTH COMPOUNDS
   BT  GROUP V COMPOUNDS
   NT  BISMUTH OXIDES
   NT  BISMUTH TELLURIDES
   NT  BISMUTH TITANATE
   RT  BISMUTH

BISMUTH OXIDES
   BT  BISMUTH COMPOUNDS
   BT  OXIDES

BISMUTH TELLURIDES
   BT  BISMUTH COMPOUNDS
   BT  TELLURIDES

BISMUTH TITANATE
   BT  BISMUTH COMPOUNDS
   BT  TITANATES

BISMUTHIDES
   Use  BISMUTH ALLOYS

BISTABLE DEVICES
   RT  FLIP FLOP CIRCUITS

BISTATIC DETECTION
   BT  DETECTION
   RT  BISTATIC RADAR
   RT  BISTATIC SONAR

BISTATIC RADAR
   BT  RADAR
   RT  BISTATIC DETECTION

BISTATIC SONAR
   BT  SONAR
   RT  BISTATIC DETECTION

BITES AND STINGS
   BT  WOUNDS AND INJURIES

BITUMENS
   BT  ORGANIC MATERIALS
   NT  BITUMINOUS COATINGS
   RT  BITUMINOUS COAL

BITUMINOUS COAL
SN: 01-MAY-1983 - A DARK BROWN TO BLACK COAL THAT IS HIGH IN CARBONACEOUS MATTER AND HAS 15-50% VOLATILE MATTER.
   BT  COAL
   RT  BITUMENS

BITUMINOUS COATINGS
SN: COATINGS OF TAR, ASPHALT, OR SIMILAR MATERIALS.
   BT  BITUMENS
   BT  ORGANIC COATINGS
   RT  PAVEMENTS

BIVARIATE ANALYSIS
   BT  ANALYSIS OF VARIANCE

BIVARIATE DENSITY FUNCTIONS
   BT  PROBABILITY DENSITY FUNCTIONS

BLACK AND WHITE PHOTOGRAPHIC FILM
   BT  PHOTOGRAPHIC FILM

BLACK AND WHITE PHOTOGRAPHY
   BT  PHOTOGRAPHY

BLACK(COLOR)
   BT  COLORS

BLACK HOLES
SN: 01-OCT-1994
   BT  NEUTRON STARS

BLACK POWDER
   BT  EXPLOSIVES

BLACK SEA
   BT  OCEANS

BLACKBODY RADIATION
SN: RADIATION FROM A SURFACE OR BODY THAT ISA COMPLETE RADIATOR. FOR RADIATION THAT CAUSES HEATING OF MATERIALS IT CONTACTS, SEE THERMAL RADIATION. FOR RADIATIONIN THE RANGE 0.75 TO 1,000 MICRONS, SEEINFRARED RADIATION.
   BT  ELECTROMAGNETIC RADIATION

BLACKOUT(PHYSIOLOGY)
SN: TEMPORARY LOSS OF VISION OR CONSCIOUSNESS OWING TO CESSATION OF BLOOD FLOW TO THE CRANIAL CAVITY, CAUSED BY LINEAR OR CENTRIFUGAL ACCELERATION. FOR FAINTING FROM OTHER CAUSES, SEE SYNCOPE.
   RT  ACCELERATION TOLERANCE

BLACKOUT(PROPAGATION)
   BT  ELECTROMAGNETIC INTERFERENCE

BLACKS(RACIAL GROUP)
SN: 01-OCT-1995
   UF  NEGROES
   BT  RACE(ANTHROPOLOGY)
   NT  AFRICAN AMERICANS

BLADDER(URINARY)
   BT  ORGANS(ANATOMY)
   BT  URINARY SYSTEM
   RT  URETHRITIS
   RT  VESICULAR VIRUSES

BLADDERS
   BT  CONTAINERS
   NT  EXPULSION BLADDERS
   NT  SWIM BLADDERS

BLADE AIRFOILS
   BT  AIRFOILS

BLADE TIPS
SN: 01-JUN-1989 - THE POINTED OR ROUNDED ENDS OR EXTREMITIES OF BLADES.
   BT  BLADES

BLADES
   NT  BLADE TIPS
   NT  FAN BLADES
   NT  PROPELLER BLADES
   NT  SAW BLADES

BLAESS METHOD
   Use  NUMERICAL METHODS AND PROCEDURES

BLANKETS
   BT  BEDDING
   RT  PROTECTIVE COVERINGS

BLANKING(ELECTRONICS)
   BT  ELECTRONICS

BLANKS(FORMS)
   Use  FORMS(PAPER)

BLAST
   UF  BLAST EFFECTS
   BT  EXPLOSION EFFECTS
   NT  BACKBLAST
   NT  BLAST WAVES

BLAST EFFECTS
   Use  BLAST

BLAST FURNACES
   BT  FURNACES

BLAST LOADS
   BT  DYNAMIC LOADS
   RT  DYNAMIC PRESSURE
   RT  EXPLOSIONS
   RT  IMPACT LOADS

BLAST RESISTANT SHELTERS
SN: 01-DEC-1984 - ANY STRUCTURE, NATURAL OR MANMADE, THAT PROVIDES SUBSTANTIAL PROTECTION AGAINST OVERPRESSURES CAUSED BY NUCLEAR EXPLOSIONS. EFFECTIVENESS IS DETERMINED BY THE YIELD OF THE WEAPON, PROXIMITY TO GROUNDZERO, AND DURABILITY OF THE STRUCTURE.
   BT  SHELTERS

BLAST TUBES
   BT  TEST EQUIPMENT
   BT  TUBES
   NT  SHOCK TUBES

BLAST WAVES
   BT  BLAST

BLASTING CAPS
   Use  DETONATORS

BLASTOMYCES
   BT  DEUTEROMYCETES(IMPERFECT FUNGI)

BLATTIDAE
   UF  COCKROACHES
   BT  ORTHOPTERA

BLEACHING AGENTS
   BT  CHEMICAL AGENTS
   RT  CLEANING
   RT  CLEANING COMPOUNDS

BLEED SYSTEMS
SN: SYSTEMS WHICH PERMIT LEAKAGE FROM ANY HYDRAULIC OR PNEUMATIC EQUIPMENT, INCLUDING COMBUSTION CHAMBERS, FUEL TANKS, TURBINES, ETC.
   BT  HYDRAULIC EQUIPMENT
   BT  PNEUMATIC EQUIPMENT

BLEEDING
   Use  HEMORRHAGE

BLENDING
   BT  MIXING

BLENDS
   Use  MIXTURES

BLIMPS
   Use  AIRSHIPS

BLIND BOMBING
   BT  BOMBING

BLIND FLYING
   Use  INSTRUMENT FLIGHT

BLINDNESS
   BT  EYE DISEASES
   BT  PHYSICAL DISABILITIES
   NT  FLASHBLINDNESS
   RT  EYE
   RT  VISION

BLOCH EQUATION
   Use  PARTIAL DIFFERENTIAL EQUATIONS

BLOCK COPOLYMERS
   BT  COPOLYMERS
   RT  BLOCK POLYMERS

BLOCK ISLAND
   BT  ATLANTIC OCEAN ISLANDS
   BT  RHODE ISLAND
   RT  BLOCK ISLAND SOUND

BLOCK ISLAND SOUND
   BT  SOUNDS(WATERWAYS)
   RT  BLOCK ISLAND
   RT  NARRAGANSETT BAY

BLOCK ORIENTED RANDOM ACCESS MEMORIES
   BT  RANDOM ACCESS COMPUTER STORAGE

BLOCK POLYMERS
   BT  POLYMERS
   RT  BLOCK COPOLYMERS

BLOCKING
   UF  OBSTRUCTING
   NT  BARRIERS
   RT  CONSTRICTIONS
   RT  OBSTRUCTION(PHYSIOLOGY)
   RT  PLUGS

BLOOD
   UF  HEMOLYMPH
   BT  BODY FLUIDS
   BT  CARDIOVASCULAR SYSTEM
   BT  HEMATOLOGY
   NT  BLOOD GASES
   NT  BLOOD PLASMA
   NT  BLOOD PROTEINS
   RT  BLOOD CHEMISTRY
   RT  BLOOD STORAGE
   RT  BLOOD VESSELS

BLOOD AGENTS
   BT  CHEMICAL WARFARE AGENTS

BLOOD ANALYSIS
   BT  HEMATOLOGY
   NT  BLOOD COUNTS
   NT  BLOOD GROUPS
   NT  BLOOD VOLUME
   NT  HEMATOCRIT
   NT  HEMOGRAMS

BLOOD BANKS
   BT  BLOOD PRESERVATION
   BT  GENETIC TISSUE IDENTIFICATION

BLOOD BRAIN BARRIER
SN: 01-OCT-1991 - CHARACTERISTIC OF CAPILLARIES OF THE BRAIN THAT INHIBIT THE CROSSING OF ALL BUT THE MOST SIMPLE OF MOLECULES.
   BT  BLOOD CIRCULATION

BLOOD CELLS
   BT  HEMATOLOGY
   NT  BLOOD PLATELETS
   NT  ERYTHROCYTES
   NT  HEMATOPOIETIC CELLS
   NT  LEUKOCYTES

BLOOD CHEMISTRY
   BT  BIOCHEMISTRY
   BT  HEMATOLOGY
   NT  BLOOD COAGULATION
   NT  FIBRINOLYSIS
   NT  HEMOLYSIS
   NT  HYPERCALCEMIA
   NT  HYPOCAPNIA
   RT  ACIDOSIS
   RT  BLOOD

BLOOD CIRCULATION
   BT  CIRCULATION
   BT  PHYSIOLOGY
   NT  BLOOD BRAIN BARRIER
   NT  ISCHEMIA
   NT  PULMONARY BLOOD CIRCULATION

BLOOD CLOTS
   Use  BLOOD COAGULATION

BLOOD COAGULATION
   UF  BLOOD CLOTS
   UF  PLASMA CLOTS
   BT  BLOOD CHEMISTRY
   BT  COAGULATION
   RT  FIBRIN
   RT  FIBRINOGEN
   RT  FIBRINOLYSIS
   RT  HEPARIN
   RT  INTRAVASCULAR CLOTS

BLOOD COUNTS
   BT  BLOOD ANALYSIS
   RT  COUNTING METHODS

BLOOD DISEASES
   UF  HEMIC DISEASES
   UF  POLYCYTHEMIA
   BT  DISEASES
   NT  ANEMIAS
   NT  BACTEREMIA
   NT  BLOOD GROUP DISORDERS
   NT  ENDOTOXEMIA
   NT  HEMOPHILIA
   NT  HYPERKALEMIA
   NT  LEUKEMIA
   NT  LEUKOPENIA
   NT  SEPTICEMIA
   NT  THROMBOCYTOPENIA
   NT  THROMBOSIS
   NT  TOXEMIA

BLOOD DONORS
   BT  DONORS(MEDICINE)

BLOOD FORMING ORGANS
   Use  HEMATOPOIETIC SYSTEM

BLOOD GASES
   BT  BLOOD
   BT  GASES

BLOOD GROUP DISORDERS
   BT  BLOOD DISEASES
   NT  ABO INCOMPATIBILITY
   NT  RH INCOMPATIBILITY

BLOOD GROUPS
   UF  BLOOD TYPES
   UF  BLOOD TYPING
   UF  RH BLOOD FACTORS
   BT  BLOOD ANALYSIS

BLOOD PLASMA
   UF  PLASMA(BLOOD)
   BT  BLOOD
   NT  BLOOD SERUM
   RT  ELECTROLYTES(PHYSIOLOGY)

BLOOD PLASMA SUBSTITUTES
   UF  PLASMA EXPANDERS
   UF  PLASMA SUBSTITUTES
   BT  SUBSTITUTES

BLOOD PLATELETS
   UF  PLATELETS (BLOOD)
   UF  THROMBOCYTES
   BT  BLOOD CELLS
   RT  ANTIPLATELET DRUGS
   RT  THROMBOCYTOPENIA

BLOOD PRESERVATION
   BT  BIOLOGICAL TISSUE PRESERVATION
   BT  HEMATOLOGY
   NT  BLOOD BANKS

BLOOD PRESERVATIVES
   BT  PRESERVATIVES

BLOOD PRESSURE
   BT  PHYSIOLOGY
   BT  PRESSURE

BLOOD PROTEINS
SN: PROTEINS MADE IN THE BLOOD FROM AMINO ACIDS AND TISSUE PROTEINS.
   UF  PLASMA PROTEINS
   BT  BLOOD
   BT  PROTEINS
   NT  CYTOKINES
   NT  FIBRIN
   NT  FIBRINOGEN
   NT  GLOBULINS
   NT  HEMOGLOBIN
   NT  PROPERDIN
   NT  SERUM ALBUMIN
   NT  THROMBIN
   NT  THROMBOPLASTIN

BLOOD SERUM
SN: BLOOD PLASMA FROM WHICH THE FIBRINOGEN HAS BEEN REMOVED.
   BT  BLOOD PLASMA
   NT  ANTILYMPHOCYTE SERUM
   NT  COMPLEMENT(BIOLOGY)

BLOOD STORAGE
   BT  STORAGE
   RT  BLOOD

BLOOD SUBSTITUTES
   BT  SUBSTITUTES

BLOOD SUCKING INSECTS
   BT  INSECTS

BLOOD TRANSFUSION
   UF  PLASMA TRANSFUSIONS
   UF  TRANSFUSIONS
   BT  THERAPY

BLOOD TYPES
   Use  BLOOD GROUPS

BLOOD TYPING
   Use  BLOOD GROUPS

BLOOD VESSELS
   BT  CARDIOVASCULAR SYSTEM
   NT  ARTERIES
   NT  CAPILLARIES(ANATOMY)
   NT  VASOCONSTRICTING
   NT  VASODILATION
   NT  VEINS
   RT  ANGIOGENESIS
   RT  BLOOD
   RT  ENDOTHELIUM

BLOOD VOLUME
   UF  PLASMA VOLUME
   BT  BLOOD ANALYSIS
   BT  VOLUME

BLOOMING
   NT  THERMAL BLOOMING

BLOWDOWN
   BT  ADVECTION

BLOWERS
   BT  COOLING AND VENTILATING EQUIPMENT
   NT  FANS
   RT  EXHAUST SYSTEMS

BLOWFLIES
   Use  DIPTERA

BLOWOFF
   BT  FLOW SEPARATION

BLOWOUTS
   BT  MOTOR VEHICLE ACCIDENTS
   RT  TIRES

BLUE
   Use  BLUE(COLOR)

BLUE(COLOR)
SN: 01-NOV-1980
   UF  BLUE
   BT  COLORS

BLUFFS(LANDFORMS)
   Use  CLIFFS

BLUNT BODIES
   BT  BODIES
   BT  GEOMETRIC FORMS

BOAT AND SHIP ACCIDENTS
SN: 01-SEP-1981 - ACCIDENTS AT SEA OR IN OTHER BODIES OF WATER INVOLVING BOATS OR SHIPS.
   BT  ACCIDENTS
   RT  BOAT AND SHIP SAFETY

BOAT AND SHIP SAFETY
SN: 01-SEP-1981 - OF OR RELATING TO SAFETY ON THE SEAS OR WATERWAYS.
   BT  SAFETY
   NT  DECK SAFETY EQUIPMENT
   RT  BOAT AND SHIP ACCIDENTS

BOATS
SN: CRAFT THAT CAN BE HOISTED ABOARD LARGER VESSELS.
   NT  BARGES
   NT  CATAMARANS
   NT  CRASH RESCUE BOATS
   NT  FERRIES(WATER CRAFT)
   NT  FIREBOATS
   NT  GUN BOATS
   NT  HYDROFOIL CRAFT
   NT  LIFEBOATS
   NT  LIGHTERS(BOATS)
   NT  MOTOR TORPEDO BOATS
   NT  PLASTIC BOATS
   NT  RUBBER BOATS
   NT  SAMPANS
   NT  SWIMMER VEHICLES
   NT  TUGBOATS
   RT  OARS
   RT  SHIPS

BOATTAIL AFTERBODIES
   BT  AFTERBODIES
   RT  TAIL ASSEMBLIES

BODIES
   NT  AFTERBODIES
   NT  BLUNT BODIES
   NT  BODIES OF REVOLUTION
   NT  CERAMIC BODIES
   NT  CONCAVE BODIES
   NT  CONVEX BODIES
   NT  DUCTED BODIES
   NT  FALLING BODIES
   NT  FLOATING BODIES
   NT  PRISMATIC BODIES
   NT  RECTANGULAR BODIES
   NT  SHARP BODIES
   NT  SLENDER BODIES
   NT  SOLID BODIES

BODIES OF REVOLUTION
   BT  BODIES
   BT  GEOMETRIC FORMS
   NT  CONICAL BODIES
   NT  CYLINDRICAL BODIES
   NT  HEMISPHERES
   NT  HEMISPHERICAL SHELLS
   NT  OGIVES
   NT  PARABOLIC BODIES
   NT  SPHERES

BODY ARMOR
   BT  ARMOR
   BT  PROTECTIVE CLOTHING
   RT  ARMOR PLATE

BODY ATTITUDE
   Use  POSTURE(PHYSIOLOGY)

BODY FATS
   Use  LIPIDS

BODY FLUIDS
   BT  ANATOMY
   BT  FLUIDS
   NT  BILE
   NT  BLOOD
   NT  CEREBROSPINAL FLUID
   NT  GASTRIC JUICE
   NT  LYMPH
   NT  MUCUS
   NT  PERSPIRATION
   NT  SALIVA
   NT  TISSUE FLUIDS
   NT  URINE
   RT  DIURESIS
   RT  EDEMA
   RT  SECRETION

BODY TEMPERATURE
   BT  PHYSIOLOGY
   BT  TEMPERATURE
   NT  HEAT PRODUCTION(BIOLOGY)
   NT  HYPERTHERMIA
   NT  HYPOTHERMIA
   RT  FEVERS

BODY WEIGHT
   BT  WEIGHT
   RT  OBESITY

BOEHMITE
SN: 01-MAY-1983 - GRAY, BROWN, OR RED ORTHORHOMBIC MINERALTHAT IS A MAJOR CONSTITUENT OF SOME BAUXITES.
   BT  MINERALS

BOGIE WHEELS
   Use  ROADWHEELS

BOGS
   Use  SWAMPS

BOILER COMPOUNDS
   BT  WATER TREATMENT
   RT  BOILERS

BOILER TUBES
   BT  TUBES
   RT  BOILERS

BOILER WATER
   Use  FEED WATER

BOILERS
   BT  HEATERS
   RT  BOILER COMPOUNDS
   RT  BOILER TUBES

BOILING
   BT  PHASE TRANSFORMATIONS
   NT  FILM BOILING
   NT  NUCLEATE BOILING
   RT  BOILING POINT

BOILING POINT
   BT  PHYSICAL PROPERTIES
   BT  TEMPERATURE
   BT  THERMODYNAMIC PROPERTIES
   RT  BOILING

BOILING WATER REACTORS
   BT  NUCLEAR REACTORS

BOILOFF
   BT  EVAPORATION

BOLIVIA
   BT  SOUTH AMERICA

BOLIVIAN HEMORRHAGIC FEVER
   BT  HEMORRHAGIC FEVERS

BOLIVIAN HEMORRHAGIC FEVER VIRUS
   Use  MACHUPO VIRUS

BOLOMETERS
   BT  MEASURING INSTRUMENTS

BOLTED JOINTS
   BT  JOINTS
   RT  BOLTS

BOLTS
   BT  FASTENINGS
   NT  EXPLOSIVE BOLTS
   RT  BOLTED JOINTS

BOLTZMAN H-FUNCTIONS
   Use  SPECIAL FUNCTIONS(MATHEMATICS)

BOLTZMANN EQUATION
   UF  TRANSPORT EQUATION
   BT  EQUATIONS
   RT  TRANSPORT PROPERTIES

BOMB AUXILIARY EQUIPMENT
SN: EQUIPMENT USED IN TRANSPORTING, HANDLING, STORING, AND LAUNCHING BOMBS.
   BT  BOMBS
   NT  BOMB BAYS
   NT  BOMB CARRIERS
   NT  BOMB EJECTORS
   NT  BOMB HANDLING VEHICLES
   NT  BOMB HOISTS
   NT  BOMB RACKS
   NT  BOMB SKIDS

BOMB BAY DOORS
   BT  AIRCRAFT DOORS

BOMB BAYS
   BT  BOMB AUXILIARY EQUIPMENT

BOMB CARRIERS
   BT  BOMB AUXILIARY EQUIPMENT

BOMB CASES
   BT  BOMB COMPONENTS

BOMB CLUSTERS
SN: CLUSTERS OF CONVENTIONAL BOMBS USED TO INCREASE THE NUMBER OF BOMBS IN A LAUNCHING CONFIGURATION.
   BT  BOMBS

BOMB COMPONENTS
SN: PARTS OF BOMBS WHEN CONSIDERED AS SEPARATE ENTITIES. FOR BOMB HANDLING AND STORING DEVICES, SEE BOMB AUXILIARY EQUIPMENT.
   BT  BOMBS
   NT  BOMB CASES
   NT  BOMB FINS
   NT  BOMB FUZES

BOMB DAMAGE
   BT  DAMAGE

BOMB DIRECTORS
SN: DEVICES USED TO ADJUST COMPONENTS OF BOMB LAUNCHING EQUIPMENT TO PROVIDE CORRECTIONS IN THE EARLY PART OF BOMB TRAJECTORIES.
   BT  FIRE CONTROL SYSTEM COMPONENTS

BOMB EJECTORS
   BT  BOMB AUXILIARY EQUIPMENT
   BT  EJECTORS(ORDNANCE)
   BT  FIRE CONTROL SYSTEM COMPONENTS
   RT  AIRCRAFT FIRE CONTROL SYSTEMS

BOMB FINS
   BT  AERODYNAMIC CONTROL SURFACES
   BT  BOMB COMPONENTS
   BT  FINS

BOMB FUZES
   BT  BOMB COMPONENTS
   BT  FUZES(ORDNANCE)
   NT  TAIL FUZES

BOMB HANDLING VEHICLES
   BT  BOMB AUXILIARY EQUIPMENT
   BT  MILITARY VEHICLES
   NT  BOMB TRUCKS

BOMB HOISTS
   BT  BOMB AUXILIARY EQUIPMENT
   BT  HOISTS

BOMB RACKS
   UF  BOMB SHACKLES
   BT  BOMB AUXILIARY EQUIPMENT
   NT  TRIPLE EJECTION RACKS

BOMB SHACKLES
   Use  BOMB RACKS

BOMB SKIDS
   BT  BOMB AUXILIARY EQUIPMENT
   BT  SKIDS

BOMB TOSSING
   Use  TOSS BOMBING

BOMB TRAJECTORIES
   BT  TRAJECTORIES

BOMB TRUCKS
SN: GROUND TRANSPORTATION DEVICES FOR BOMBS AND AIRCRAFT ROCKETS.
   BT  BOMB HANDLING VEHICLES
   BT  TRUCKS

BOMBARDMENT(ATTACK)
   BT  ATTACK

BOMBARDMENT SATELLITES
   BT  MILITARY SATELLITES

BOMBER AIRCRAFT
   BT  MILITARY AIRCRAFT
   NT  ATTACK BOMBERS
   NT  FIGHTER BOMBERS
   NT  JET BOMBERS

BOMBING
   BT  WEAPON DELIVERY
   NT  AREA BOMBING
   NT  BLIND BOMBING
   NT  HIGH ALTITUDE BOMBING
   NT  HIGH SPEED BOMBING
   NT  LOW ALTITUDE BOMBING
   NT  NIGHT BOMBING
   NT  OFFSET BOMBING
   NT  PRECISION BOMBING
   NT  RADAR BOMBING
   NT  STRATEGIC BOMBING
   NT  TACTICAL BOMBING

BOMBING COMPUTERS
   BT  FIRE CONTROL COMPUTERS

BOMBLETS
SN: PREFORMED BOMBS CARRIED WITHIN A CLUSTERWARHEAD AND DISPERSED BY A BURSTING CHARGE.
   BT  BOMBS
   RT  CLUSTER WARHEADS

BOMBS
   BT  ORDNANCE
   NT  BIOLOGICAL BOMBS
   NT  BOMB AUXILIARY EQUIPMENT
   NT  BOMB CLUSTERS
   NT  BOMB COMPONENTS
   NT  BOMBLETS
   NT  CHEMICAL BOMBS
   NT  DEPTH BOMBS
   NT  GENERAL PURPOSE BOMBS
   NT  GLIDE BOMBS
   NT  GUIDED BOMBS
   NT  INCENDIARY BOMBS
   NT  LEAFLET BOMBS
   NT  NUCLEAR BOMBS
   NT  PHOTOFLASH BOMBS
   NT  PRACTICE BOMBS
   NT  SMOKE BOMBS

BOMBSIGHTS
   BT  SIGHTS

BOMBYCIDAE
   Use  LEPIDOPTERA

BONDED JOINTS
   BT  JOINTS

BONDING
SN: THE HOLDING TOGETHER OF PARTS, AS WITH ADHESIVES OR CEMENTS. ALSO, THE FORCES THAT HOLD PARTS TOGETHER. FOR STUDIES OF THE BONDING FORCES IN MOLECULES, SEE CHEMICAL BONDS.
   BT  JOINING
   NT  ADHESIVE BONDING
   NT  CASE BONDING
   NT  DIFFUSION BONDING
   NT  ROLL BONDING
   RT  ADHESION
   RT  COHESION
   RT  PASTES
   RT  WELDING

BONE FRACTURES
   BT  WOUNDS AND INJURIES
   RT  BONES

BONE MARROW
   BT  BONES
   BT  HEMATOPOIETIC SYSTEM
   NT  ERYTHROPOIESIS
   RT  MYELOMA

BONES
   UF  OSTEOLOGY
   BT  CONNECTIVE TISSUE
   BT  SKELETON
   NT  ALVEOLAR BONE
   NT  BONE MARROW
   NT  FIBULA
   NT  HUMERUS
   NT  MANDIBLE
   NT  MAXILLA
   NT  PANOSTEITIS
   NT  PHALANGES
   NT  RIBS
   NT  SKULL
   NT  TIBIA
   RT  BONE FRACTURES
   RT  OSTEOPOROSIS

BOOBY TRAPS
   BT  ANTIPERSONNEL WEAPONS
   BT  TRAPS
   RT  GUERRILLA WARFARE
   RT  TRIP WIRES

BOOKS
   BT  DOCUMENTS
   NT  ALMANACS
   NT  HANDBOOKS
   NT  TEXTBOOKS
   RT  LIBRARIES

BOOLEAN ALGEBRA
   UF  BOOLEAN LATTICE
   UF  BOOLEAN SUMS
   BT  MATHEMATICAL LOGIC
   RT  SET THEORY

BOOLEAN FUNCTIONS
   Use  SPECIAL FUNCTIONS(MATHEMATICS)

BOOLEAN LATTICE
   Use  BOOLEAN ALGEBRA

BOOLEAN SUMS
   Use  BOOLEAN ALGEBRA

BOOMS(EQUIPMENT)
   BT  POSITIONING DEVICES(MACHINERY)
   NT  AERONAUTICAL BOOMS
   RT  CRANES
   RT  WINCHES

BOOST GLIDE VEHICLES
SN: ROCKET-BOOSTED WINGED VEHICLES CAPABLE OF LEAVING THE ATMOSPHERE AND RE-ENTERINGUNDER AERODYNAMIC CONTROL IN AN UNPOWERED OR GLIDING MODE.
   UF  SKIP-GLIDE VEHICLES
   BT  AEROSPACE CRAFT
   RT  MANEUVERABLE REENTRY VEHICLES

BOOST PHASE
   BT  CLIMBING

BOOSTER MOTORS
   Use  BOOSTER ROCKET ENGINES

BOOSTER ROCKET ENGINES
SN: ROCKET MOTORS THAT ASSIST THE NORMAL PROPULSION SYSTEMS OF GUIDED MISSILES, AEROSPACE VEHICLES, ETC., AT SOME TIME DURING FLIGHT.
   UF  BOOSTER MOTORS
   UF  BOOSTER ROCKETS
   UF  FIRST-STAGE MOTORS
   UF  ROCKET BOOSTERS
   BT  ROCKET ENGINES
   NT  RECOVERABLE BOOSTER ENGINES

BOOSTER ROCKETS
   Use  BOOSTER ROCKET ENGINES

BOOSTER VEHICLES
   Use  LAUNCH VEHICLES

BOOSTERS(EXPLOSIVES)
SN: ASSEMBLIES OF METAL PARTS AND EXPLOSIVE CHARGES PROVIDED TO AUGMENT THE EXPLOSIVE COMPONENTS OF FUZES, TO CAUSE DETONATION OF THE MAIN EXPLOSIVE CHARGE OF MUNITIONS.
   BT  EXPLOSIVE TRAINS
   NT  MINE BOOSTERS

BOOTS
   BT  FOOTWEAR

BORANES
SN: COMPOUNDS FORMED FROM THE DISTILLATION OF B2H6 OR B4H10. FOR THE COMPOUND BH3, USE BORON COMPOUNDS AND HYDRIDES.
   NT  CARBORANES
   NT  DECABORANES
   NT  DIBORANES
   NT  ORGANOBORANES
   NT  PENTABORANES
   BT  BORON HYDRIDES

BORATES
   BT  BORON COMPOUNDS
   BT  INORGANIC COMPOUNDS
   NT  FLUOBORATES

BORDER SECURITY
SN: 01-JAN-2008
   BT  HOMELAND DEFENSE

BORDETELLA
   BT  BRUCELLACEAE
   NT  BORDETELLA PERTUSSIS

BORDETELLA PERTUSSIS
   BT  BORDETELLA

BOREDOM
   BT  STRESS(PSYCHOLOGY)
   RT  REACTION(PSYCHOLOGY)

BOREHOLES
   BT  CAVITIES
   BT  HOLES(OPENINGS)
   RT  DRILLING

BOREL FUNCTIONS
   Use  SPECIAL FUNCTIONS(MATHEMATICS)

BOREL MEASURE
   Use  MEASURE THEORY

BORES
   BT  HOLES(OPENINGS)

BORESCOPES
   BT  OPTICAL INSTRUMENTS
   RT  BORESIGHTING

BORESIGHTING
SN: THE PROCESS BY WHICH THE AXIS OF A GUN BORE AND THE LINE OF SIGHT ARE MADE PARALLEL OR ARE MADE TO CONVERSE ON A POINT.
   UF  BORESIGHTS
   BT  SIGHTS
   RT  BORESCOPES

BORESIGHTS
   Use  BORESIGHTING

BORIC ACID
   BT  INORGANIC ACIDS

BORIDES
   BT  BORON COMPOUNDS
   BT  INORGANIC COMPOUNDS
   NT  TITANIUM BORIDE

BORINES
   BT  BORON COMPOUNDS
   NT  PHOSPHINOBORINES

BORING TOOLS
   Use  DRILLS

BORN APPROXIMATIONS
SN: 01-OCT-1993 - APPROXIMATIONS USED IN SCATTERING PROBLEMS WHERE THE ENERGY OF THE INTERACTION IS SMALL COMPARED TO THE ENERGY OF THE INITIAL SYSTEM.
   BT  SCATTERING CROSS SECTIONS

BORNA DIASEASE
   Use  EQUINE ENCEPHALOMYELITIS VIRUS

BORNEO
   BT  PACIFIC OCEAN ISLANDS
   BT  SOUTHEAST ASIA

BOROHYDRIDES
SN: COMPOUNDS CONTAINING THE UNIVALENT INORGANIC BOROHYDRIDE ANION (BH4).
   BT  HYDRIDES
   NT  SODIUM BOROHYDRIDES

BORON
   BT  METALLOIDS
   RT  BORON ALLOYS
   RT  BORON COMPOUNDS

BORON ALLOYS
   BT  METALLOID ALLOYS
   RT  BORON

BORON CARBIDES
   BT  BORON COMPOUNDS
   BT  CARBIDES

BORON COMPOUNDS
   BT  GROUP III COMPOUNDS
   BT  NONMETALLIC COMPOUNDS
   NT  BORATES
   NT  BORIDES
   NT  BORINES
   NT  BORON CARBIDES
   NT  BORON HYDRIDES
   NT  BORON NITRIDES
   NT  BORON OXIDES
   RT  BORON

BORON HYDRIDES
   BT  BORON COMPOUNDS
   BT  HYDRIDES
   NT  BORANES

BORON NITRIDES
   BT  BORON COMPOUNDS
   BT  NITRIDES

BORON OXIDES
   BT  BORON COMPOUNDS
   BT  OXIDES

BORRELIA
   BT  TREPONEMATACEAE
   NT  BORRELIA RECURRENTIS

BORRELIA RECURRENTIS
   BT  BORRELIA

BOSE EINSTEIN CONDENSATES
SN: 01-APR-2000
   BT  MOLECULAR STATES
   RT  QUANTUM THEORY

BOSNIA HERZEGOVINA
SN: 01-OCT-1994
   BT  YUGOSLAVIA

BOSONS
   BT  ELEMENTARY PARTICLES
   NT  HEAVY BOSONS
   NT  MESONS
   NT  PHOTONS

BOTANY
   BT  BIOLOGY
   NT  PALYNOLOGY
   NT  PLANTS(BOTANY)

BOTTLES
   BT  CONTAINERS
   NT  INTRAVENOUS BOTTLES
   RT  FLASKS

BOTTOM
   BT  POSITION(LOCATION)
   NT  OCEAN BOTTOM
   NT  UNDERBOTTOM

BOTTOM BOUNCE
   BT  ACOUSTIC REFLECTION
   RT  UNDERWATER SOUND

BOTTOM LOSS
   BT  LOSSES

BOTTOM WATERS
SN: 01-MAY-1983 - WATER LYING BENEATH OIL OR GAS IN PRODUCTIVE FORMATIONS. THE WATER MASS AT THE DEEPEST PART OF A WATER COLUMN IN THE OCEAN.
   BT  WATER
   RT  ABYSSAL ZONES
   RT  OCEAN BOTTOM

BOTULISM
SN: 01-MAY-1983 - POISONING OF MAN AND ANIMALS BY A GROUP OF IMMUNOLOGICALLY DISTINCT TYPES OF CLOSTRIDIUM BOTULINUM ACQUIRED BY MAN GENERALLY FROM THE INGESTION OF IMPROPERLY CANNED OR PRESERVED FOOD.
   BT  FOOD POISONING
   BT  TOXIC DISEASES
   RT  CLOSTRIDIUM BOTULINUM

BOUGUER GRAVITY ANOMALIES
   BT  GRAVITY ANOMALIES

BOULDERS
   BT  ROCK

BOUNDARIES
   UF  PERIPHERIES
   RT  LIMITATIONS

BOUNDARY ELEMENT METHODS
SN: 01-APR-2001
   BT  NUMERICAL METHODS AND PROCEDURES

BOUNDARY LAYER
   BT  LAYERS
   NT  BOUNDARY LAYER TRANSITION
   NT  LAMINAR BOUNDARY LAYER
   NT  THERMAL BOUNDARY LAYER
   NT  TURBULENT BOUNDARY LAYER
   RT  FLOW FIELDS

BOUNDARY LAYER CONTROL
   NT  AREA SUCTION
   NT  BOUNDARY LAYER TRIPS
   NT  JET FLAPS
   NT  SPOILERS
   NT  VORTEX GENERATORS
   RT  DRAG REDUCTION

BOUNDARY LAYER FLOW
   BT  VISCOUS FLOW

BOUNDARY LAYER TRANSITION
SN: THE TRANSITION FROM LAMINAR TO TURBULENTFLOW IN A BOUNDARY LAYER.
   BT  BOUNDARY LAYER
   RT  TURBULENCE

BOUNDARY LAYER TRIPS
SN: 01-DEC-1984 - BOUNDARY LAYER CONTROL DEVICE.
   BT  BOUNDARY LAYER CONTROL

BOUNDARY VALUE PROBLEMS
   BT  DIFFERENTIAL EQUATIONS
   NT  CAUCHY PROBLEM
   RT  VARIATIONAL PRINCIPLES

BOUNDED FUNCTIONS
   Use  FUNCTIONS(MATHEMATICS)

BOUSSINESQ-PAPKOVICH STRESS FUNCTION
   Use  SPECIAL FUNCTIONS(MATHEMATICS)

BOVINES
   UF  CATTLE
   BT  LIVESTOCK
   BT  MAMMALS
   RT  BEEF
   RT  FOOT AND MOUTH DISEASE VIRUS
   RT  MILK

BOW SHOCK
   BT  SHOCK

bowel cancer
   Use  COLON CANCER

BOX BEAMS
   BT  BEAMS(STRUCTURAL)

BOXCARS
   BT  RAILROAD CARS

BOXES
   BT  CONTAINERS
   NT  CARDBOARD BOXES

BRACKISH WATER
   BT  SALT WATER

BRADYCARDIA
   BT  CARDIOVASCULAR DISEASES
   RT  HEART RATE

BRAGG ANGLE
   BT  ANGLES
   RT  BRAGG SCATTERING

BRAGG SCATTERING
SN: 01-DEC-1984 - SCATTERING OF X-RAYS OR NEUTRONS BY THE REGULARLY SPACED ATOMS IN A CRYSTAL, FORWHICH CONSTRUCTIVE INTERFERENCE OCCURS ONLY AT DEFINITE ANGLES CALLED BRAGG ANGLES.
   RT  BRAGG ANGLE

BRAIDS
   BT  FABRICS

BRAIN
   BT  CENTRAL NERVOUS SYSTEM
   NT  BRAIN STEM
   NT  CEREBELLUM
   NT  CEREBRUM
   NT  CHOROID PLEXUS
   NT  DURA MATER
   NT  HYPOTHALAMUS
   NT  THALAMUS

BRAIN DAMAGE
SN: Retired July 2011. USE Traumatic Brain Injuries (that was added in March 2011).
   BT  retired descriptors
   BT  TRAUMATIC BRAIN INJURIES

BRAIN FUNCTION IMPAIRMENT
SN: 01-JAN-2008
   BT  PHYSICAL DISABILITIES
   NT  COGNITIVE IMPAIRMENT
   NT  MOTOR FUNCTION IMPAIRMENT

BRAIN STEM
SN: 01-OCT-2004
   BT  BRAIN

BRAINWASHING
   BT  MILITARY PSYCHOLOGY

BRAKE FLUIDS
   BT  HYDRAULIC FLUIDS
   RT  BRAKES

BRAKES
   UF  AUXILIARY BRAKES
   NT  CHOCKS
   NT  DISK BRAKES
   NT  ELECTRIC BRAKES
   NT  HYDRAULIC BRAKES
   NT  PNEUMATIC BRAKES
   NT  VEHICLE BRAKES
   NT  WATER BRAKES
   RT  ARRESTING GEAR
   RT  BRAKE FLUIDS
   RT  BRAKING

BRAKES(METALWORKING)
   Use  METAL FORMING BRAKES

BRAKING
   BT  STOPPING
   RT  ARRESTING(PROCESS)
   RT  BRAKES
   RT  DECELERATION

BRAKING RADIATION
   Use  BREMSSTRAHLUNG

BRASS
   BT  COPPER ALLOYS

BRASSBOARD MODELS
   BT  MODELS

BRAYTON CYCLE
   BT  THERMODYNAMIC CYCLES

BRAZED JOINTS
   BT  JOINTS
   RT  BRAZING

BRAZIL
   BT  SOUTH AMERICA

BRAZING
SN: THE FORMING OF HEAT-RESISTANT METAL JOINTS BY ALLOWING MELTED ALLOYS OF COPPER, ZINC, AND SILVER TO BIND THE MEMBERS. THE PROCESS IS USUALLY CARRIED OUT ON A HEARTH AND THE JOINTS SO FORMED MAY RESIST TEMPERATURES OVER 1,000C. FOR THE SIMILAR JOINING PROCESS USING TIN-LEAD ALLOYS TO FORM JOINTS MUCH LESS RESISTANT TOHEAT, SEE SOLDERING.
   BT  THERMAL JOINING
   RT  BRAZED JOINTS
   RT  BRAZING ALLOYS

BRAZING ALLOYS
   BT  ALLOYS
   RT  BRAZING

BREAD
   BT  FOOD

BREADBOARD MODELS
   BT  MODELS
   RT  PROTOTYPES

BREAKDOWN DIODES
   Use  AVALANCHE DIODES

BREAKDOWN(ELECTRONIC THRESHOLD)
   BT  ELECTRIC DISCHARGES

BREAKPOINT TEMPERATURE
   BT  REACTION KINETICS

BREAKWATERS
   UF  JETTIES
   UF  SEA WALLS

BREAST
   Use  MAMMARY GLANDS

BREAST CANCER
SN: 01-OCT-1995
   BT  CANCER
   RT  MAMMARY GLANDS

BREAST RECONSTRUCTION
SN: 01-0CT-1997
   BT  PLASTIC SURGERY
   RT  MASTECTOMY

BREATHING
   Use  RESPIRATION

BREATHING APPARATUS
SN: APPARATUS THAT PROVIDES AN OXYGEN SUPPLYOR PURIFIES AVAILABLE OXYGEN TO PERMIT BREATHING AND USUALLY TO ALLOW SOME FREEDOM OF MOVEMENT IN EXTREME ENVIRONMENTS,SUCH AS CONTAMINATED AREAS, HIGH ALTITUDE, OR UNDERWATER. FOR DEVICES THAT MAINTAIN RESPIRATION IN INDIVIDUALS PHYSICALLY UNABLE TO BREATHE NORMALLY, SEE RESPIRATORS.
   BT  LIFE SUPPORT SYSTEMS
   NT  ASPIRATORS
   NT  BREATHING MASKS
   NT  RESPIRATORS
   NT  SCUBA APPARATUS
   NT  SNORKELS
   RT  OXYGEN EQUIPMENT

BREATHING GASES
   BT  GASES

BREATHING MASKS
SN: THE PART OF THE BREATHING APPARATUS THATFITS OVER THE HEAD AND FACE, WITH SPECIAL MECHANISMS TO ALLOW INHALATION AND EXHALATION.
   BT  BREATHING APPARATUS
   NT  OXYGEN MASKS
   NT  PROTECTIVE MASKS

BREECH MECHANISMS
   BT  GUN COMPONENTS

BREEDER REACTORS
   BT  PRODUCTION REACTORS

BREEDING
   BT  REPRODUCTION(PHYSIOLOGY)

BREEDING CYCLES
   Use  BIOLOGICAL RHYTHMS

BREMSSTRAHLUNG
SN: ELECTROMAGNETIC RADIATION FROM THE ACCELERATION OF A FAST CHARGED PARTICLE (USUALLY AN ELECTRON) THAT IS DEFLECTED BY ANOTHER CHARGED PARTICLE (USUALLY A NUCLEUS).
   UF  BRAKING RADIATION
   BT  ELECTROMAGNETIC RADIATION
   RT  CONTINUOUS SPECTRA

BRIBERY
   BT  CRIMES

BRICK
   BT  CERAMIC MATERIALS
   BT  MASONRY

BRIDGES
   NT  CAUSEWAYS
   NT  GIRDER BRIDGES
   NT  MILITARY BRIDGES
   NT  TRESTLES
   RT  CROSSINGS

BRIEFCASES
   Use  BAGS

BRIGADE LEVEL ORGANIZATIONS
   BT  DIVISION LEVEL ORGANIZATIONS
   NT  REGIMENT LEVEL ORGANIZATIONS

BRIGHTNESS
   BT  OPTICAL PROPERTIES
   NT  SKY BRIGHTNESS
   RT  GLARE
   RT  ILLUMINATION

BRILLOUIN ZONES
   BT  CRYSTAL STRUCTURE

BRINES
   BT  SALT WATER

BRITISH COLUMBIA
   BT  CANADA

BRITISH GUYANA
   Use  GUYANA

BRITTLENESS
   BT  MECHANICAL PROPERTIES
   NT  FRANGIBLE
   NT  HYDROGEN EMBRITTLEMENT
   RT  DUCTILE BRITTLE TRANSITION
   RT  EMBRITTLEMENT

BROACH POWDERS
   Use  ABRASIVES

BROACHES
   BT  SMALL TOOLS

BROADBAND
   BT  BANDWIDTH
   BT  FREQUENCY

BROADBAND ANTENNAS
   UF  WIDEBAND ANTENNAS
   BT  ANTENNAS
   NT  CONICAL ANTENNAS
   NT  LOG PERIODIC ANTENNAS
   NT  SPIRAL ANTENNAS
   RT  WHIP ANTENNAS

BROADBAND PROBES
   Use  ELECTROMAGNETIC PROBES

BROADBAND TRANSDUCERS
   BT  TRANSDUCERS

BROMIDES
   BT  HALIDES
   NT  OXYBROMIDES

BROMINATION
   BT  HALOGENATION

BROMINE
   BT  HALOGENS
   RT  BROMINE COMPOUNDS

BROMINE COMPOUNDS
   BT  HALOGEN COMPOUNDS
   NT  BROMPHENOL BLUE
   RT  BROMINE

BROMPHENOL BLUE
SN: 01-NOV-1980
   BT  BROMINE COMPOUNDS
   BT  CHEMICAL INDICATORS
   BT  PHENOLS

BRONCHI
   BT  RESPIRATORY SYSTEM

BRONCHITIS
   BT  RESPIRATORY DISEASES

BRONCHODILATORS
   Use  ANTISPASMODIC AGENTS

BRONCHOGRAPHY
   BT  RADIOGRAPHY

BRONCHOPNEUMONIA
SN: 01-NOV-1980 - ACUTE INFLAMMATION OF THE WALLS OF THE SMALLER BRONCHIAL TUBES.
   BT  PNEUMONIA

BRONZE
   BT  COPPER ALLOYS

BROWNIAN MOTION
   BT  MOTION

BROWNOUTS(ELECTRIC POWER)
   BT  ELECTRIC POWER

BRUCELLA
   BT  BRUCELLACEAE
   NT  BRUCELLA ABORTUS
   NT  BRUCELLA BRONCHISEPTICA
   NT  BRUCELLA MELITENSIS
   NT  BRUCELLA SUIS
   RT  BRUCELLOSIS

BRUCELLA ABORTUS
   BT  BRUCELLA

BRUCELLA BRONCHISEPTICA
   BT  BRUCELLA

BRUCELLA MELITENSIS
   BT  BRUCELLA

BRUCELLA SUIS
   BT  BRUCELLA

BRUCELLACEAE
   UF  HAEMOPHILUS INFLUENZAE
   UF  HEMOPHILUS INFLUENZAE
   BT  EUBACTERIALES
   NT  ACTINOBACILLUS
   NT  BORDETELLA
   NT  BRUCELLA
   NT  PASTEURELLA

BRUCELLOSIS
   BT  BACTERIAL DISEASES
   RT  BRUCELLA

BRUCINE
   Use  STRYCHNOS ALKALOIDS

BRUSHES
   RT  BUFFERS
   RT  CLEANING

BRUSHLESS ELECTRICAL EQUIPMENT
   BT  ELECTRICAL EQUIPMENT

BUBBLE CHAMBERS
   BT  IONIZATION CHAMBERS

BUBBLE MEMORIES
   BT  MEMORY DEVICES

BUBBLES
   NT  CAVITATION
   NT  EXPLOSION BUBBLES
   RT  FOAM

BUCCA
SN: 01-MAY-1983 - CHEEK.
   BT  FACE(ANATOMY)

BUCKLING
   BT  FAILURE(MECHANICS)

BUCKLING(NEUTRON DENSITY)
   BT  REACTOR LATTICE PARAMETERS

BUDDHISM
SN: A religion and philosophy encompassing a variety of traditions, beliefs and practices, largely based on teachings attributed to Siddhartha Gautama, commonly known as the Buddha. The Buddha lived and taught in the northeastern Indian subcontinent some time between the 6th and 4th centuries BCE. He is recognized by Buddhists as an awakened or enlightened teacher who shared his insights to help sentient beings end ignorance of dependent origination, thus escaping what is seen as a cycle of suffering and rebirth. (July 2011)
   UF  Buddhists
   BT  RELIGION

Buddhists
   Use  BUDDHISM

BUDGET ESTIMATES
SN: 01-0CT-1997
   BT  BUDGETS

BUDGETS
   BT  ECONOMIC ANALYSIS
   NT  BUDGET ESTIMATES
   NT  FEDERAL BUDGETS
   NT  MILITARY BUDGETS
   RT  FISCAL POLICIES
   RT  INCOME

BUFFER STORAGE
   BT  DATA STORAGE SYSTEMS
   BT  MEMORY DEVICES
   RT  CORE STORAGE

BUFFERS
   RT  BRUSHES

BUFFERS(CHEMISTRY)
   BT  SOLUTIONS(MIXTURES)

BUFFETING
   BT  AERODYNAMIC LOADING

BUILDINGS
   BT  STRUCTURES
   NT  CHURCHES
   NT  DINING HALLS
   NT  HANGARS
   NT  MUSEUMS
   NT  OFFICE BUILDINGS
   NT  PREFABRICATED BUILDINGS
   NT  ROOFS
   NT  WAREHOUSES

BULGARIA
   BT  EASTERN EUROPE

BULGARIAN LANGUAGE
SN: 01-OCT-1996
   BT  NATURAL LANGUAGE

BULGING
   BT  METALWORKING

BULK CARGO
   BT  CARGO

BULK FILTERING
   BT  NOISE REDUCTION
   BT  SIGNAL PROCESSING

BULK MATERIALS
   BT  MATERIALS

BULK MODULUS
   BT  MECHANICAL PROPERTIES

BULK SEMICONDUCTORS
   BT  SEMICONDUCTORS

BULKHEADS
   BT  WALLS
   RT  HULLS(MARINE)

BULLDOZERS
   BT  TRACTORS
   RT  CONSTRUCTION EQUIPMENT

BULLET JACKETS
   Use  PROJECTILE CASES

BULLET WOUNDS
   BT  TRAUMA

BULLETPROOF GLASS
   BT  GLASS

BULLETS
   Use  SMALL ARMS AMMUNITION

BUNDLES
   BT  MANPORTABLE EQUIPMENT
   BT  PACKAGING
   RT  PACKETS

BUOYANCY
   BT  FLUID MECHANICS
   BT  PHYSICAL PROPERTIES

BUOYS
   BT  OCEANOGRAPHIC EQUIPMENT
   NT  COMMUNICATION BUOYS
   NT  MOORING BUOYS
   NT  SONOBUOYS
   NT  SPAR BUOYS
   RT  FLOATS

BURGLARY
   BT  CRIMES

BURIED OBJECTS
   RT  UNDERGROUND

BURMA
   BT  SOUTHEAST ASIA

BURN IN TESTS
SN: 01-APR-2002
   BT  STRESS TESTING

BURNABLE POISONS
   BT  POISONS

BURNERS
   NT  ANNULAR BURNERS
   NT  OIL BURNERS
   NT  RAMBURNERS

BURNING
   Use  COMBUSTION

BURNING PROCESS
   Use  COMBUSTION

BURNING RATE
   BT  COMBUSTION
   BT  RATES
   RT  FUEL CONSUMPTION

BURNOUT
   BT  STRESS(PSYCHOLOGY)

BURNS(INJURIES)
SN: INJURIES CAUSED BY EXPOSURE TO HEAT OR TO THE SUN. FOR BURNS CAUSED BY OTHER RADIATIONS, AS FROM REACTOR ACCIDENTS OR NUCLEAR EXPLOSION, SEE RADIATION INJURIES. FOR BURNS CAUSED BY CHEMICAL WARFARE AGENTS, SEE CHEMICAL WARFARE INJURIES.
   BT  WOUNDS AND INJURIES
   NT  CHEMICAL BURNS
   NT  CHORIORETINAL BURNS
   RT  LASER DAMAGE
   RT  RADIATION INJURIES

BURNTHROUGH
   BT  COMBUSTION

BURROS
   Use  EQUINES

BURST
   Use  RUPTURE

BURST TRANSMISSION
   NT  METEOR BURST COMMUNICATIONS

BURSTING CHARGES
   BT  AMMUNITION COMPONENTS
   BT  EXPLOSIVE CHARGES

BURSTING STRENGTH
   BT  MECHANICAL PROPERTIES

BURUNDI
SN: 01-0CT-1997
   BT  SUBSAHARAN AFRICA

BUS CONDUCTORS
   BT  TRANSMISSION LINES

BUSES
   Use  PASSENGER VEHICLES

BUSHINGS
   BT  SPACERS

BUSINESS
   Use  COMMERCE

BUSINESS ADMINISTRATION
SN: The academic discipline that has its goals the expansion of knowledge relative to furthering the understanding of business and all its related functions. (July 2011)
   NT  ACCOUNTING
   NT  FINANCE
   NT  MANAGEMENT
   NT  MARKETING
   NT  RISK MANAGEMENT

BUSINESS PROCESS REENGINEERING
SN: 01-OCT-1997 - A MANAGEMENT DISCIPLINE APPLIED TO REDESIGN AN ORGANIZATION'S STRUCTURE, PROCESSES, OR CULTURE, EITHER CONTINUOUSLY, OR BY LARGE SCALE INNOVATION.
   BT  MANAGEMENT ENGINEERING
   NT  ORGANIZATIONAL REALIGNMENT
   NT  PRIVATIZATION

BUTADIENES
   BT  DIENES
   NT  ISOPRENE
   NT  POLYBUTADIENE

BUTANES
   BT  ALKANES

BUTANOLS
   BT  ALCOHOLS

BUTANONES
   BT  KETONES

BUTENES
   UF  BUTYLENE
   UF  ISOBUTYLENE
   BT  ALKENES

BUTT WELDING
   BT  WELDING

BUTTER
   Use  MILK FAT

BUTTERFLIES
   Use  LEPIDOPTERA

BUTTERFLY VALVES
   BT  VALVES

BUTTOCKS
   BT  HIP

BUTYL RADICALS
   BT  ALKYL RADICALS
   BT  CHEMICAL RADICALS

BUTYL RUBBER
   BT  RUBBER
   RT  LATEX

BUTYLENE
   Use  BUTENES

BUTYRATES
   BT  ESTERS

BUTYRIC ACIDS
   BT  ORGANIC ACIDS

BUZZARDS BAY
SN: 01-NOV-1980 - AN INLET FROM THE ATLANTIC OCEAN IN MASSACHUSETTS.
   BT  BAYS

BYPASS VALVES
   BT  VALVES

BYTE FUNCTIONAL MODULES
   BT  DIGITAL SYSTEMS
   BT  MODULES(ELECTRONICS)

BZ AGENTS
   BT  INCAPACITATING AGENTS

C AGENTS
   BT  CHEMICAL WARFARE AGENTS

C BAND
SN: 5,000 TO 6,000 MEGACYCLES.
   BT  SUPERHIGH FREQUENCY

C PROGRAMMING LANGUAGE
SN: 01-OCT-1995
   BT  HIGH LEVEL LANGUAGES

C-SETS
   Use  GROUPS(MATHEMATICS)

CABLE ASSEMBLIES
   BT  CABLES

CABLE CUTTING DEVICES
   BT  CUTTING TOOLS
   RT  CABLES

CABLE FAIRINGS
   BT  FAIRINGS
   RT  CABLES

CABLE GRIPS
   BT  HOLDERS
   RT  ELECTRIC CABLES

CABLE REELS
   BT  REELS
   RT  CABLES
   RT  FIELD WIRE

CABLE TELEVISION
   BT  TELEVISION SYSTEMS

CABLES
   NT  CABLE ASSEMBLIES
   NT  ELECTRIC CABLES
   NT  MECHANICAL CABLES
   NT  MULTICONDUCTOR CABLES
   NT  UNDERWATER CABLES
   RT  CABLE CUTTING DEVICES
   RT  CABLE FAIRINGS
   RT  CABLE REELS
   RT  STRANDS

CABLES(ELECTRICAL)
   Use  ELECTRIC CABLES

CACAO
   BT  TREES
   NT  CHOCOLATE

CADAVERS
   RT  HUMAN BODY

CADETS
   BT  MILITARY PERSONNEL
   BT  STUDENTS

CADMIUM
   BT  TRANSITION METALS
   RT  CADMIUM ALLOYS
   RT  CADMIUM COMPOUNDS

CADMIUM ALLOYS
   BT  ALLOYS
   RT  CADMIUM

CADMIUM COMPOUNDS
   BT  GROUP II COMPOUNDS
   NT  CADMIUM SELENIDES
   NT  CADMIUM SULFIDES
   NT  CADMIUM TELLURIDES
   RT  CADMIUM

CADMIUM NICKEL BATTERIES
   Use  NICKEL CADMIUM BATTERIES

CADMIUM SELENIDES
   BT  CADMIUM COMPOUNDS
   BT  SELENIDES

CADMIUM SULFIDES
   BT  CADMIUM COMPOUNDS
   BT  SULFIDES

CADMIUM TELLURIDES
   BT  CADMIUM COMPOUNDS
   BT  TELLURIDES
   NT  CADMIUM ZINC TELLURIDES
   NT  MERCURY CADMIUM TELLURIDES

CADMIUM ZINC TELLURIDES
SN: 01-JAN-1999
   BT  CADMIUM TELLURIDES
   BT  ZINC TELLURIDES

CAFFEINE
   BT  HETEROCYCLIC COMPOUNDS
   BT  PURINE ALKALOIDS
   RT  COFFEE

CALCIFICATION
   BT  BIOCHEMISTRY
   RT  ARTHRITIS

CALCINATION
SN: 01-JUL-1998 - HEATING A MATERIAL BELOW ITS MELTING POINT TO EFFECT A CHEMICAL OR PHYSICAL CHANGE.
   BT  PYROLYSIS

CALCITE
   BT  CARBONATE MINERALS
   BT  ROCK FORMING MINERALS

CALCITONIN
   BT  HORMONES

CALCIUM
   BT  ALKALINE EARTH METALS
   RT  CALCIUM ALLOYS
   RT  CALCIUM COMPOUNDS

CALCIUM ALLOYS
   BT  ALLOYS
   RT  CALCIUM

CALCIUM CARBONATES
   BT  CALCIUM COMPOUNDS
   BT  CARBONATES

CALCIUM COMPOUNDS
   BT  ALKALINE EARTH COMPOUNDS
   NT  CALCIUM CARBONATES
   NT  CALCIUM OXIDES
   NT  GYPSUM
   RT  CALCIUM

CALCIUM FLUORIDES
   BT  FLUORIDES

CALCIUM HYDRIDES
   BT  HYDRIDES

CALCIUM OXIDES
   UF  LIME
   BT  ALKALINE EARTH OXIDES
   BT  CALCIUM COMPOUNDS

CALCULATORS
   BT  OFFICE EQUIPMENT AND SUPPLIES
   RT  COMPUTATIONS
   RT  COMPUTERS

CALCULI
SN: SOLID CONCRETIONS COMPOSED CHIEFLY OF MINERAL SUBSTANCE AND SALT THAT MAY BE FORMED IN DUCTS, PASSAGES, HOLLOW ORGANS, OR CYSTS.
   UF  RENAL CALCULI

CALCULUS
   BT  MATHEMATICS
   NT  CALCULUS OF VARIATIONS
   NT  MONOTONE FUNCTIONS

CALCULUS OF VARIATIONS
   BT  CALCULUS
   NT  VARIATIONAL PRINCIPLES

CALENDERING(SHEET FORMING)
   BT  MATERIAL FORMING

CALIBRATION
   BT  LABORATORY PROCEDURES
   BT  MEASUREMENT

CALIFORNIA
   BT  UNITED STATES
   NT  LOS ANGELES(CALIFORNIA)
   NT  SAN DIEGO BAY
   NT  SAN FRANCISCO BAY
   NT  SANTA BARBARA ISLANDS

CALIFORNIA ENCEPHALITIS VIRUS
   BT  ARBOVIRUSES

CALIFORNIA GULF
SN: 01-JUN-1989 - ARM OF THE PACIFIC IN N. W. MEXICO BETWEEN THE BAJA CALIFORNIA PENINSULA AND SONORA AND SINALOA.
   BT  GULFS

CALIFORNIUM
   BT  ACTINIDE SERIES
   BT  TRANSURANIUM ELEMENTS
   RT  CALIFORNIUM COMPOUNDS

CALIFORNIUM COMPOUNDS
   BT  TRANSURANIUM COMPOUNDS
   RT  CALIFORNIUM

CALLIGRAPHIC DISPLAYS
   BT  DISPLAY SYSTEMS

CALORIFIC VALUE
SN: 01-DEC-1984 - QUANTITY OF HEAT LIBERATED ON THE COMPLETE COMBUSTION OF A UNIT WEIGHT OR UNIT VOLUME OF FUEL.
   BT  CHEMICAL PROPERTIES
   BT  HEAT OF REACTION
   RT  CALORIMETRY

CALORIMETERS
   BT  MEASURING INSTRUMENTS
   RT  CALORIMETRY

CALORIMETRY
   BT  MEASUREMENT
   NT  DIFFERENTIAL SCANNING CALORIMETRY
   NT  MICROCALORIMETRY
   RT  CALORIFIC VALUE
   RT  CALORIMETERS

CALUTRON
   Use  MAGNETIC SEPARATION

CAMBER
   BT  ALIGNMENT
   RT  DEFLECTION

CAMBODIA
   BT  SOUTHEAST ASIA

CAMERA COMPONENTS
   BT  CAMERAS
   NT  CAMERA CONTROLS
   NT  CAMERA LENSES
   NT  CAMERA MAGAZINES
   NT  CAMERA SHUTTERS
   NT  CAMERA VIEWFINDERS
   NT  EXPOSURE METERS
   NT  PHOTOGRAPHIC LIGHTING SYSTEMS
   NT  PHOTOGRAPHIC WINDOWS
   NT  VIEWFINDERS

CAMERA CONTROLS
   BT  CAMERA COMPONENTS
   BT  CONTROL SYSTEMS
   NT  IMAGE MOTION COMPENSATION

CAMERA LENSES
   UF  PHOTOGRAPHIC LENSES
   BT  CAMERA COMPONENTS
   BT  OPTICAL LENSES
   NT  AFOCAL OPTICAL LENSES
   NT  ASPHERICAL LENSES
   NT  FOLDED OPTICAL LENSES
   NT  TELEPHOTO LENSES

CAMERA MAGAZINES
   BT  CAMERA COMPONENTS
   NT  FILM TRANSPORT SYSTEMS

CAMERA MOUNTS
   BT  MOUNTS

CAMERA SHUTTERS
   UF  SHUTTERS(CAMERA)
   BT  CAMERA COMPONENTS
   BT  SHUTTERS(OPTICS)

CAMERA TUBES
   BT  IMAGE TUBES
   NT  ICONOSCOPES
   NT  IMAGE ORTHICONS
   NT  PLUMBICONS
   NT  VIDICONS

CAMERA VIEWFINDERS
   BT  CAMERA COMPONENTS

CAMERAS
   BT  PHOTOGRAPHIC EQUIPMENT
   NT  AERIAL CAMERAS
   NT  ALL SKY CAMERAS
   NT  ASTRONOMICAL CAMERAS
   NT  BALLISTIC CAMERAS
   NT  CAMERA COMPONENTS
   NT  COPYING CAMERAS
   NT  DIGITAL CAMERAS
   NT  GUN SIGHT CAMERAS
   NT  HIGH SPEED CAMERAS
   NT  INFRARED CAMERAS
   NT  MEDICAL CAMERAS
   NT  MOTION PICTURE CAMERAS
   NT  PANORAMIC CAMERAS
   NT  PHOTOFLUOROGRAPHIC CAMERAS
   NT  RADAR RECORDING CAMERAS
   NT  RECONNAISSANCE CAMERAS
   NT  SONIC CAMERAS
   NT  SPACECRAFT CAMERAS
   NT  SPECTROGRAPHIC CAMERAS
   NT  STEREOSCOPIC CAMERAS
   NT  TELEVISION CAMERAS
   NT  TRACKING CAMERAS
   NT  UNDERWATER CAMERAS
   NT  WIDE FIELD CAMERAS
   NT  X RAY DIFFRACTION CAMERAS
   RT  PHOTOGRAPHS
   RT  PHOTOGRAPHY

CAMOUFLAGE
SN: THE DISGUISING OF INSTALLATIONS, VEHICLES, SHIPS, PERSONNEL, ETC. TO REDUCE THEIR VISIBILITY OR CONCEAL THEIR ACTUAL LOCATION FROM THE ENEMY.
   BT  DECEPTION
   NT  ANTISONAR COATINGS
   NT  RADAR CAMOUFLAGE

CAMS
   BT  POSITIONING DEVICES(MACHINERY)
   RT  ACTUATORS

CAN OPENERS
   Use  KITCHEN EQUIPMENT AND SUPPLIES

CANADA
   BT  NORTH AMERICA
   NT  ALBERTA
   NT  BRITISH COLUMBIA
   NT  MANITOBA
   NT  NEW BRUNSWICK
   NT  NEWFOUNDLAND(PROVINCE)
   NT  NORTHWEST TERRITORIES
   NT  NOVA SCOTIA
   NT  ONTARIO
   NT  QUEBEC
   NT  SASKATCHEWAN
   NT  YUKON TERRITORY

CANADIAN EQUIPMENT
   RT  FOREIGN TECHNOLOGY

CANAL ZONE
   Use  PANAMA

CANALS
   BT  INLAND WATERWAYS
   NT  PANAMA CANAL
   NT  SUEZ CANAL

CANARD CONFIGURATIONS
   BT  AERODYNAMIC CONFIGURATIONS

CANARY ISLANDS
   BT  ATLANTIC OCEAN ISLANDS

CANCELLATION
   RT  ELIMINATION
   RT  REMOVAL
   RT  STOPPING

CANCER
SN: MALIGNANT NEOPLASMS.
   UF  CARCINOMAS
   BT  NEOPLASMS
   NT  BREAST CANCER
   NT  COLON CANCER
   NT  HODGKINS DISEASE
   NT  LUNG CANCER
   NT  METASTASIS
   NT  MYELOMA
   NT  ONCOGENESIS
   NT  OVARIAN CANCER
   NT  PROSTATE CANCER
   NT  SARCOMA
   RT  CARCINOGENS
   RT  ONCOGENIC VIRUSES
   RT  ONCOLOGISTS
   RT  ONCOLOGY

CANCER SCREENING
SN: 01-OCT-2000
   BT  PREVENTIVE MEDICINE
   NT  ENZYMATIC CANCER SCREENING
   RT  DIAGNOSIS(MEDICINE)

CANDIDA
   BT  DEUTEROMYCETES(IMPERFECT FUNGI)
   RT  FUNGUS DISEASES

CANDLES
   BT  LIGHT SOURCES
   RT  LIGHT

CANISTER PROJECTILES
   BT  ANTIPERSONNEL AMMUNITION
   BT  FRAGMENTATION AMMUNITION
   BT  PROJECTILES

CANISTERS
   BT  CONTAINERS

CANISTERS(PROTECTIVE MASK)
   Use  PROTECTIVE MASK CANISTERS

CANNABINOLS
   BT  PHENOLS
   RT  CANNABIS

CANNABIS
   UF  MARIJUANA
   BT  PLANTS(BOTANY)
   RT  CANNABINOLS

CANNED FOODS
   BT  FOOD
   RT  CANNING

CANNIBALIZATION
SN: 01-JUN-1989 - REMOVAL OF SERVICEABLE PARTS FROM ONE ITEM OF EQUIPMENT IN ORDER TO INSTALL THEMON ANOTHER ITEM OF EQUIPMENT.
   BT  LOGISTICS MANAGEMENT

CANNING
   BT  FOOD PROCESSING
   RT  CANNED FOODS

CANNON TUBES
   Use  GUN BARRELS

CANNULATION
   UF  CATHETERIZATION
   RT  CATHETERS
   RT  INTUBATION

CANOPIES
   NT  AIRCRAFT CANOPIES
   NT  PARACHUTE CANOPIES
   NT  TREE CANOPY
   RT  WINDSHIELDS

CANTED NOZZLES
SN: ROCKET MOTOR NOZZLES HAVING A THRUST AXIS THAT IS ANGULAR WITH THE AXIS OF SYMMETRY OF THE VEHICLES ON WHICH THEY ARE MOUNTED.
   BT  NOZZLES

CANTILEVER BEAMS
   BT  BEAMS(STRUCTURAL)

CANTON ISLAND
   BT  POLYNESIA

CANYONS
   UF  GORGES
   BT  LANDFORMS
   BT  VALLEYS
   NT  SUBMARINE CANYONS

CAPACITANCE
   UF  ELECTRICAL CAPACITY
   BT  ELECTRICAL IMPEDANCE
   RT  CAPACITORS

CAPACITANCE BRIDGES
   BT  IMPEDANCE BRIDGES

CAPACITIES OF SETS
   Use  POTENTIAL THEORY

CAPACITORS
   NT  CERAMIC CAPACITORS
   NT  ELECTROLYTIC CAPACITORS
   NT  FIXED CAPACITORS
   NT  QUARTZ CAPACITORS
   NT  VARIABLE CAPACITORS
   RT  CAPACITANCE

CAPACITY(QUANTITY)
   NT  VOLUME

CAPE HATTERAS
   BT  NORTH CAROLINA

CAPILLARIES(ANATOMY)
   BT  BLOOD VESSELS

CAPILLARITY
   BT  SURFACE TENSION
   NT  CAPILLARY WAVES
   RT  CAPILLARY TUBES

CAPILLARY TUBES
   BT  TUBES
   RT  CAPILLARITY

CAPILLARY WAVES
   BT  CAPILLARITY

CAPITAL
   Use  MONEY

CAPITAL INVESTMENTS
SN: 01-OCT-1997
   BT  INVESTMENTS

CAPITALISM
SN: 01-APR-2006
   BT  ECONOMIC SYSTEMS

CAPPING
   RT  COVERINGS

CAPROLACTONES
   BT  CYCLOHEXANONES

CAPS(EXPLOSIVES)
SN: 01-SEP-1981 - A PAPER OR METAL CONTAINER HOLDING AN EXPLOSIVE CHARGE; SUCH AS A DEVICE USED TODETONATE ANOTHER CHARGE.
   BT  IGNITERS

CAPS(HEADGEAR)
   Use  HEADGEAR

CAPSULES(PHARMACY)
   BT  DRUGS
   RT  TABLETS(CHEMICAL)

CAPSULES(SPACECRAFT)
   Use  SPACE CAPSULES

CAPTIVE AIRSPACE CRAFT
   BT  GROUND EFFECT MACHINES

CAPTIVE FLIGHT
   BT  FLIGHT

CAPTIVE TESTS
SN: OPERATION OF A MISSILE OR PROPULSION SYSTEM ON A TEST STAND TO DETERMINE OR CHECK PERFORMANCE.
   BT  STATIC TESTS
   RT  TEST STANDS

CAPTOR MINES
   BT  MINES(ORDNANCE)

car bomb
   Use  VEHICLE BORNE IMPROVISED EXPLOSIVE DEVICES

CARATHEODORY'S THEOREM
   Use  COMPLEX VARIABLES

CARBACHOL
   UF  CARBAMYLCHOLINE CHLORIDE
   BT  PARASYMPATHOMIMETIC AGENTS

CARBAMATES
   BT  ESTERS
   NT  URETHANES
   RT  CARBAMIC ACID

CARBAMIC ACID
   BT  ACIDS
   RT  CARBAMATES

CARBAMIDES
   Use  UREIDES

CARBAMYLCHOLINE CHLORIDE
   Use  CARBACHOL

CARBENES
   BT  ORGANIC COMPOUNDS

CARBIDE TOOLS
   BT  CUTTING TOOLS
   RT  CARBIDES

CARBIDES
   BT  CARBON COMPOUNDS
   BT  GROUP IV COMPOUNDS
   NT  BORON CARBIDES
   NT  SILICON CARBIDES
   NT  TANTALUM CARBIDES
   NT  TUNGSTEN CARBIDES
   RT  CARBIDE TOOLS

CARBINOLS
   BT  ALCOHOLS

CARBOHYDRATE METABOLISM
   BT  METABOLISM
   RT  DIABETES

CARBOHYDRATES
   UF  SACCHARIDES
   BT  FOOD
   BT  ORGANIC COMPOUNDS
   NT  GLYCOSIDES
   NT  POLYSACCHARIDES
   NT  SUGARS
   NT  TRISACCHARIDES

CARBON
   BT  NONMETALS
   NT  ACTIVATED CARBON
   NT  CARBON BLACK
   NT  COKE
   NT  DIAMONDS
   NT  GLASSY CARBON
   NT  GRAPHITE
   RT  CARBON ALLOYS
   RT  CARBON COMPOUNDS
   RT  COAL
   RT  SOOT

CARBON ALLOYS
   BT  ALLOYS
   RT  CARBON

CARBON ARC LAMPS
   BT  ARC LAMPS

CARBON BLACK
   UF  LAMPBLACK
   BT  CARBON

CARBON BRUSHES
   BT  ELECTRICAL BRUSHES

CARBON CARBON COMPOSITES
   BT  COMPOSITE MATERIALS

CARBON CARBON LYASES
   UF  DESMOLASES
   BT  LYASES

CARBON COMPOUNDS
   BT  CHEMICAL COMPOUNDS
   NT  CARBIDES
   NT  CARBON DIOXIDE
   NT  CARBON DISULFIDE
   NT  CARBON MONOSULFIDE
   NT  CARBON MONOXIDE
   NT  CARBONATES
   NT  CARBONYL COMPOUNDS
   RT  CARBON

CARBON DIOXIDE
   BT  CARBON COMPOUNDS
   BT  DIOXIDES

CARBON DIOXIDE LASERS
   BT  GAS LASERS
   BT  INFRARED LASERS

CARBON DISULFIDE
   BT  CARBON COMPOUNDS
   BT  SULFIDES

CARBON FIBERS
   BT  FIBERS
   NT  CARBON YARN

CARBON MONOSULFIDE
   BT  CARBON COMPOUNDS
   BT  SULFIDES

CARBON MONOXIDE
   BT  CARBON COMPOUNDS
   BT  MONOXIDES
   RT  CARBON MONOXIDE POISONING

CARBON MONOXIDE INDICATORS
   BT  GAS DETECTORS

CARBON MONOXIDE LASERS
   BT  GAS LASERS

CARBON MONOXIDE POISONING
   BT  POISONING
   BT  TOXIC DISEASES
   RT  CARBON MONOXIDE

CARBON NANOTUBES
SN: Allotropes of carbon with a cylindrical nanostructure. These cylindrical carbon molecules have unusual properties, which are valuable for nanotechnology, electronics, optics and other fields of materials science and technology. (April 1998)
   BT  NANOMATERIALS

CARBON OXYGEN LYASES
   BT  LYASES
   NT  CARBOXY LYASES
   NT  HYALURONATE LYASE
   NT  HYDRO LYASES

CARBON PHENOLIC MATERIALS
   BT  COMPOSITE MATERIALS
   BT  PHENOLIC PLASTICS

CARBON REINFORCED COMPOSITES
   BT  COMPOSITE MATERIALS

CARBON REMOVING COMPOUNDS
   BT  SOLVENTS

CARBON RESISTORS
   BT  RESISTORS

CARBON STEELS
   BT  STEEL

CARBON TETRABROMIDE
   BT  HALOGENATED HYDROCARBONS

CARBON TETRACHLORIDE
   BT  HALOGENATED HYDROCARBONS

CARBON TETRAFLUORIDE
   BT  HALOGENATED HYDROCARBONS

CARBON YARN
   BT  CARBON FIBERS
   BT  YARNS

CARBONATE DEHYDRATASE
   Use  CARBONIC ANHYDRASE

CARBONATE HYDRO-LYASE
   Use  CARBONIC ANHYDRASE

CARBONATE MINERALS
   BT  MINERALS
   NT  ARAGONITE
   NT  CALCITE
   NT  DOLOMITE

CARBONATES
   BT  CARBON COMPOUNDS
   NT  BICARBONATES
   NT  CALCIUM CARBONATES
   NT  POLYCARBONATES
   NT  SODIUM CARBONATES

CARBONIC ACID
   Use  PHENOLS

CARBONIC ANHYDRASE
   UF  CARBONATE DEHYDRATASE
   UF  CARBONATE HYDRO-LYASE
   BT  HYDRO LYASES

CARBONITRIDING
   Use  CASE HARDENING

CARBONYL CHLORIDE
   Use  PHOSGENE

CARBONYL COMPOUNDS
   BT  CARBON COMPOUNDS
   NT  METAL CARBONYLS

CARBORANES
   BT  BORANES

CARBORANYL RADICALS
   BT  ARYL RADICALS

CARBOXY LYASES
   BT  CARBON OXYGEN LYASES

CARBOXYL GROUPS
   Use  CARBOXYL RADICALS

CARBOXYL RADICALS
   UF  CARBOXYL GROUPS
   BT  CHEMICAL RADICALS

CARBOXYLIC ACIDS
   BT  ORGANIC ACIDS
   NT  BENZOIC ACIDS
   NT  CARMINIC ACID
   NT  CITRIC ACID
   NT  FATTY ACIDS
   NT  FOLIC ACID
   NT  FORMIC ACID
   NT  GLYOXYLIC ACID
   NT  HYGRIC ACID
   NT  LACTIC ACID
   NT  LEVULINIC ACIDS
   NT  MALIC ACID
   NT  MALONIC ACID
   NT  NEURAMINIC ACID
   NT  OXALIC ACID
   NT  PHTHALIC ACIDS
   NT  SEBACIC ACID

CARBOXYLIC ESTER HYDROLASES
   UF  CHOLESTEROL ESTERASE
   UF  STEROL ESTER HYDROLASE
   BT  ESTERASES
   NT  CHOLINESTERASE

CARBOXYMETHYLCELLULOSE
   BT  POLYSACCHARIDES

CARBROMAL
   Use  UREIDES

CARBURETOR AIR SCOOPS
   BT  AIR INTAKES
   RT  CARBURETORS

CARBURETORS
   BT  ENGINE FUEL SYSTEMS COMPONENTS
   NT  AIRCRAFT CARBURETORS
   RT  CARBURETOR AIR SCOOPS
   RT  INTERNAL COMBUSTION ENGINES

CARBURIZING
   BT  HEAT TREATMENT

CARCINOGENESIS
   Use  ONCOGENESIS

CARCINOGENS
   NT  POLYCHLORINATED BIPHENYLS
   RT  CANCER

CARCINOMAS
   Use  CANCER

CARCINOTRONS
   BT  TRAVELING WAVE TUBES

CARDBOARD BOXES
   BT  BOXES
   BT  CONTAINERS

CARDIAC ARREST
SN: 01-MAY-1983 - CESSATION OF THE HEARTBEAT.
   UF  HEART ARREST
   BT  CARDIOVASCULAR DISEASES
   RT  DEFIBRILLATION
   RT  HEART

CARDIAC CARE UNITS
SN: 01-APR-1998
   BT  INTENSIVE CARE UNITS
   RT  CARDIAC PATIENTS

CARDIAC GLYCOSIDES
   BT  CARDIOVASCULAR AGENTS
   NT  DIGITALIS
   NT  DIGITOXIN

CARDIAC MUSCLE
   Use  HEART

CARDIAC PATIENTS
   BT  PATIENTS
   RT  CARDIAC CARE UNITS

CARDIOGRAPHS
   Use  CARDIOGRAPHY

CARDIOGRAPHY
   UF  CARDIOGRAPHS
   BT  MEDICAL EXAMINATION
   NT  BALLISTOCARDIOGRAPHY
   NT  CARDIOTACHOMETRY
   NT  ECHOCARDIOGRAPHY
   NT  ELECTROCARDIOGRAPHY
   NT  PHONOCARDIOGRAPHY
   RT  HEART

CARDIOLOGISTS
   BT  MEDICAL PERSONNEL
   RT  CARDIOLOGY

CARDIOLOGY
   BT  MEDICINE
   RT  CARDIOLOGISTS

CARDIOPULMONARY RESUSCITATION
SN: 01-OCT-1998
   BT  RESUSCITATION
   RT  ARTIFICIAL RESPIRATION

CARDIOTACHOMETRY
   BT  CARDIOGRAPHY

CARDIOVASCULAR AGENTS
   UF  VASOACTIVE AGENTS
   UF  VASOPRESSORS
   BT  DRUGS
   NT  CARDIAC GLYCOSIDES
   NT  HEXAMETHONIUM COMPOUNDS

CARDIOVASCULAR DISEASES
   BT  VASCULAR DISEASES
   NT  AORTIC INSUFFICIENCY
   NT  ARRHYTHMIA
   NT  ATHEROSCLEROSIS
   NT  BRADYCARDIA
   NT  CARDIAC ARREST
   NT  CIRCULATORY INSUFFICIENCIES
   NT  CONGESTIVE HEART FAILURE
   NT  CORONARY DISEASE
   NT  EMBOLISM
   NT  HEMATOMAS
   NT  INFARCTION
   NT  PULMONARY EDEMA
   NT  TACHYCARDIA
   NT  THROMBOSIS

CARDIOVASCULAR SYSTEM
   UF  CIRCULATORY SYSTEM
   BT  ANATOMY
   NT  ANASTOMOSIS
   NT  BLOOD
   NT  BLOOD VESSELS
   NT  HEART
   NT  HEMATOPOIETIC SYSTEM
   NT  LYMPHATIC SYSTEM

CARDS
   NT  PUNCHED CARDS
   RT  MEDIA

CAREERS
   BT  PERSONNEL DEVELOPMENT
   NT  JOURNALISM
   NT  MILITARY OCCUPATIONAL SPECIALTIES
   RT  JOBS
   RT  JOURNEYMAN LEVEL

CARGO
   UF  FREIGHT
   UF  LADING
   NT  BULK CARGO
   NT  PERISHABLE CARGO
   RT  CARGO HANDLING
   RT  CARGO NETS
   RT  CARGO VEHICLES

cargo aircraft
SN: A cargo aircraft (also known as freight aircraft, freighter, airlifter, or cargo jet) is a fixed-wing aircraft designed or converted for the carriage of goods, rather than passengers. They are usually devoid of passenger amenities, and generally feature one or more large doors for the loading and unloading of cargo. Freighters may be operated by civil passenger or cargo airlines, by private individuals or by the armed forces of individual countries. However most air freight is carried in special ULD containers in the cargo holds of passenger aircraft.
   UF  cargo jet
   UF  freight aircraft
   BT  TRANSPORT AIRCRAFT
   RT  unit load device

CARGO HANDLING
   BT  HANDLING
   RT  CARGO

cargo jet
   Use  cargo aircraft

CARGO NETS
   BT  NETS
   RT  CARGO

CARGO PARACHUTES
   BT  PARACHUTES

CARGO SHIPS
   UF  AF(VESSELS)
   BT  SHIPS
   NT  CONTAINERSHIPS

CARGO VEHICLES
   UF  TRANSPORT VEHICLES
   BT  VEHICLES
   NT  GONDOLAS
   NT  TRUCKS
   RT  CARGO

CARIBBEAN SEA
   BT  OCEANS

CARIBBEAN SEA ISLANDS
   Use  WEST INDIES

CARMINIC ACID
SN: 01-APR-2006
   BT  ANTHRAQUINONES
   BT  CARBOXYLIC ACIDS

CARNITINE
   Use  VITAMIN B COMPLEX

CARNIVORA
   BT  MAMMALS
   NT  CATS
   NT  DOGS
   NT  SEALS(MAMMALS)
   NT  WEASELS
   NT  WOLVERINES

CAROTENES
   Use  CAROTENOIDS

CAROTENOIDS
   UF  CAROTENES
   UF  CAROTENOLS
   UF  LYCOPENE
   UF  XANTHOPHYLLS
   BT  ORGANIC PIGMENTS
   NT  BACTERIORHODOPSIN

CAROTENOLS
   Use  CAROTENOIDS

CAROTID ARTERIES
   UF  CAROTID SINUS
   BT  ARTERIES

CAROTID SINUS
   Use  CAROTID ARTERIES

CARPAINE
   Use  ALKALOIDS

CARPETS
   UF  RUGS
   BT  FLOOR COVERINGS
   RT  VACUUM CLEANERS

CARRIAGES
   RT  DOLLIES

CARRIER BASED AIRCRAFT
   BT  NAVAL AIRCRAFT
   RT  AIRCRAFT CARRIERS

CARRIER CONTROLLED APPROACH RADAR
SN: AIRCRAFT CARRIER RADAR SYSTEMS THAT ASCERTAIN THE POSITIONS OF INCOMING PLANES BY RADAR, AND RELAY TO THE PLANES BY RADIO INFORMATION FOR MAKING APPROACHES.
   BT  RADAR LANDING CONTROL
   RT  CARRIER LANDINGS
   RT  RADAR NAVIGATION

CARRIER FREQUENCIES
   BT  FREQUENCY

CARRIER LANDINGS
   BT  AIRCRAFT LANDINGS
   RT  CARRIER CONTROLLED APPROACH RADAR

CARRIER MOBILITY
   BT  ELECTRICAL PROPERTIES
   BT  MOBILITY
   BT  TRANSPORT PROPERTIES

CARRIER ONBOARD DELIVERY
   BT  DELIVERY

CARRIER WAVES
   UF  SUBCARRIER WAVES
   BT  ELECTROMAGNETIC RADIATION

CARRIERS(DISEASE)
   Use  DISEASE VECTORS

CARRIERS(NAVAL VESSELS)
   Use  AIRCRAFT CARRIERS

CARRIERS(VEHICLES)
   Use  VEHICLES

CARROTS
   BT  VEGETABLES

CARS
   Use  PASSENGER VEHICLES

CARTESIAN COORDINATES
   UF  RECTANGULAR COORDINATES
   BT  COORDINATES

CARTILAGE
   UF  INTERVERTEBRAL DISKS
   BT  CONNECTIVE TISSUE
   BT  MUSCULOSKELETAL SYSTEM

CARTOGRAPHY
   Use  MAPPING

CARTRIDGE CASE EXTRACTORS
   BT  GUN COMPONENTS
   RT  CARTRIDGE CASES

CARTRIDGE CASES
   BT  AMMUNITION COMPONENTS
   NT  COMBUSTIBLE CARTRIDGE CASES
   RT  CARTRIDGE CASE EXTRACTORS

CARTRIDGES
   BT  AMMUNITION
   NT  CARTRIDGES(PAD)
   NT  PHOTOFLASH CARTRIDGES

CARTRIDGES(PAD)
   BT  CARTRIDGES
   BT  PROPELLANT ACTUATED DEVICES

CASCADE STRUCTURES
   BT  STRUCTURES

CASCADES(FLUID DYNAMICS)
   BT  FLUID DYNAMICS

CASE BONDING
   BT  BONDING

CASE HARDENING
   UF  CARBONITRIDING
   BT  HARDENING
   BT  HEAT TREATMENT

CASE LAW
SN: 01-APR-2009 - LAW BASED ON PRECEDENT.
   UF  COURT CASES
   BT  LEGISLATION

CASE STUDIES
   RT  SCENARIOS

CASEIN
   UF  CASEINATES
   BT  PHOSPHOPROTEINS

CASEINATES
   Use  CASEIN

CASELESS AMMUNITION
   BT  AMMUNITION

CASKS
   Use  BARRELS

CASPIAN SEA
SN: 01-SEP-1981 - THE WORLD'S LARGEST INLAND SEA LYING BETWEEN EUROPE AND ASIA.
   BT  LAKES

CASSEGRAIN ANTENNAS
   BT  MICROWAVE ANTENNAS

CASSEGRAIN TELESCOPES
   BT  CASSEGRAINIAN OPTICAL SYSTEMS

CASSEGRAINIAN OPTICAL SYSTEMS
   BT  FOLDED OPTICAL LENSES
   NT  CASSEGRAIN TELESCOPES

CASSETTES
   BT  RECORDING SYSTEMS

CASTING
   BT  MATERIAL FORMING
   NT  CENTRIFUGAL CASTING
   NT  DIE CASTING
   NT  DROP CASTING
   NT  INVESTMENT CASTING
   NT  NEAR NET SHAPE FORMING
   NT  SAND CASTING
   NT  SLIP CASTING
   RT  CASTINGS

CASTING ALLOYS
   BT  ALLOYS

CASTING ENGINEERING
   Use  MATERIALS ENGINEERING

CASTINGS
SN: EMBODIMENTS OF ALLOYS PRODUCED BY ANY CASTING PROCESS.
   BT  METALLURGY
   RT  CASTING

CASTOR OIL
   Use  VEGETABLE OILS

CASUALTIES
   NT  AMPUTEES
   NT  BIOLOGICAL WARFARE CASUALTIES
   NT  CHEMICAL WARFARE CASUALTIES
   NT  NUCLEAR WARFARE CASUALTIES
   RT  ACCIDENTS
   RT  BATTLES
   RT  CASUALTY CENTERS
   RT  DEATH
   RT  DESTRUCTION

CASUALTY CENTERS
   BT  HOSPITALS
   NT  SHOCK TRAUMA CENTERS
   RT  CASUALTIES

CATABOLISM
   BT  METABOLISM

CATALASE
   BT  OXIDOREDUCTASES

CATALOGS
   BT  DOCUMENTS

CATALYSIS
   BT  CHEMICAL REACTIONS
   NT  CATALYTIC CRACKING
   NT  CATALYTIC OXIDATION
   RT  ACTIVATION
   RT  CATALYSTS

CATALYSTS
   NT  ELECTROCATALYSTS
   RT  CATALYSIS

CATALYTIC CONFLICT(WARFARE)
SN: 01-DEC-1984 - WAR BETWEEN TWO COUNTRIES OR COALITIONS THAT IS DELIBERATELY INSTIGATED BY A THIRD PARTY.
   BT  WARFARE

CATALYTIC CONVERTERS
SN: 01-MAY-1983 - A CRACKER UTILIZING CATALYSTS.
   RT  CATALYTIC CRACKING

CATALYTIC CRACKING
   BT  CATALYSIS
   RT  CATALYTIC CONVERTERS

CATALYTIC OXIDATION
   BT  CATALYSIS
   BT  OXIDATION

CATAMARANS
   BT  BOATS
   NT  SWATH SHIPS

CATAPHORESIS
   Use  ELECTROPHORESIS

CATAPULTS
   BT  LAUNCHERS

CATARACTS
   BT  EYE DISEASES

CATARRHAL RHINITIS
   Use  ADENOVIRUSES

CATASTROPHIC CONDITIONS
   BT  ADVERSE CONDITIONS

CATECHOLAMINES
   BT  AMINES
   BT  PHENOLS
   NT  DOPAMINE
   NT  EPINEPHRINE

CATENARIES
   BT  CURVES(GEOMETRY)

CATHARTICS
   UF  EMODIN
   UF  LAXATIVES
   UF  PURGATIVES
   BT  DRUGS

CATHETERIZATION
   Use  CANNULATION

CATHETERS
   BT  MEDICAL SUPPLIES
   RT  CANNULATION

CATHODE FOLLOWERS
   BT  AMPLIFIERS
   BT  CIRCUITS

CATHODE RAY TUBE SCREENS
   BT  ELECTRON TUBE TARGETS
   BT  FLUORESCENT SCREENS
   RT  DISPLAY SYSTEMS

CATHODE RAY TUBES
   BT  ELECTRON TUBES
   NT  COLOR TELEVISION TUBES
   NT  DARK TRACE TUBES
   NT  KINESCOPES
   NT  POLARTRONS
   RT  ELECTRON GUNS

CATHODES
   BT  ELECTRODES
   NT  CATHODES(ELECTROLYTIC CELL)
   NT  CATHODES(ELECTRON TUBES)
   NT  OXIDE CATHODES

CATHODES(ELECTROLYTIC CELL)
   BT  CATHODES

CATHODES(ELECTRON TUBES)
   BT  CATHODES
   BT  ELECTRON TUBE COMPONENTS
   BT  EMITTERS
   NT  PHOTOCATHODES

CATHODIC PROTECTION
SN: PREVENTION OF ELECTROLYTIC CORROSION IN AN UNDERGROUND OR UNDERWATER METAL STRUCTURE BY MAKING THE STRUCTURE ACT AS THE CATHODE OF AN ELECTROLYTIC CELL.
   BT  CORROSION INHIBITION

CATHODOLUMINESCENCE
   BT  LUMINESCENCE

CATIONS
   BT  IONS
   NT  DEUTERIUM ION CONCENTRATION

CATS
   BT  CARNIVORA

CATTLE
   Use  BOVINES

CAUCASIANS
   BT  RACE(ANTHROPOLOGY)

CAUCHY KERNALS
   Use  INTEGRAL EQUATIONS

CAUCHY POINTS
   Use  SERIES(MATHEMATICS)

CAUCHY PROBLEM
   UF  RIEMANN PROBLEM
   BT  BOUNDARY VALUE PROBLEMS

CAUCHY PRODUCT
   Use  SERIES(MATHEMATICS)

CAULKING COMPOUNDS
   Use  SEALING COMPOUNDS

CAUSEWAYS
   BT  BRIDGES
   BT  ROADS

CAUSTIC EMBRITTLEMENT
   Use  EMBRITTLEMENT

CAUSTICS
   BT  BASES(CHEMISTRY)

CAVALRY
   BT  FIELD ARMY

CAVES
   BT  LANDFORMS

CAVITATION
   BT  BUBBLES

CAVITATION CORROSION
   BT  CORROSION

CAVITATION NOISE
   BT  NOISE(SOUND)

CAVITIES
   BT  HOLES(OPENINGS)
   BT  VOIDS
   NT  BOREHOLES
   RT  OPENINGS
   RT  PERFORATION

CAVITY CHARGE CONTAINERS
   Use  SHAPED CHARGES

CAVITY CHARGES
   Use  SHAPED CHARGES

CAVITY LINERS
   BT  LININGS

CAVITY RESONATORS
   UF  RESONANT CAVITIES
   BT  RESONATORS
   NT  LASER CAVITIES

CCD
   Use  CHARGE COUPLED DEVICES

CECUM
   BT  INTESTINES

CEILING
SN: THE HEIGHT OF THE LOWEST CLOUDS OR OBSCURING PHENOMENA AT AN AIRPORT, WEATHER STATION, ETC.
   BT  CLOUD COVER

CEILOMETERS
   Use  CLOUD HEIGHT INDICATORS

CELERY
   BT  VEGETABLES

CELESTIAL DYNAMICS
   Use  CELESTIAL MECHANICS

CELESTIAL GUIDANCE
SN: AUTOMATIC DIRECTION OF MISSILES, SPACECRAFT, ETC., BY INSTRUMENTS WITHIN THE VEHICLE THAT SENSE THE POSITIONS OF STARS AND OTHER CELESTIAL BODIES. FOR POSITION-FINDING TECHNIQUES IN WHICH NAVIGATORS DETERMINE GEOGRAPHIC LOCATIONS BY CELESTIAL OBSERVATIONS, SEE CELESTIAL NAVIGATION.
   UF  STELLAR GUIDANCE
   BT  GUIDANCE
   NT  STAR TRACKERS
   NT  STELLAR MAP MATCHING
   RT  CELESTIAL NAVIGATION

CELESTIAL MECHANICS
   UF  CELESTIAL DYNAMICS
   BT  MECHANICS
   NT  ECLIPSES
   NT  OCCULTATION
   RT  N BODY PROBLEM

CELESTIAL NAVIGATION
   BT  NAVIGATION
   RT  CELESTIAL GUIDANCE

CELESTIAL OBSERVATION
   Use  ASTRONOMY

CELL BIOLOGY
   Use  CYTOLOGY

CELL DIVISION
   BT  BIFURCATION(BIOLOGY)
   BT  CYTOLOGY
   NT  MEIOSIS
   NT  MITOSIS
   NT  SCHIZOGONY
   NT  SYNAPSIS

cell phone
   Use  CELLULAR COMMUNICATIONS

CELL STRUCTURE
   BT  CELLS(BIOLOGY)
   NT  CELL WALL
   NT  CYTOPLASM
   NT  NUCLEI(BIOLOGY)

CELL WALL
   BT  CELL STRUCTURE

CELLOPHANE
   BT  FLEXIBLE MATERIALS
   BT  PLASTICS

CELLOTRIOSE
   Use  TRISACCHARIDES

CELLS
   NT  ELECTROLYTIC CELLS
   NT  FUEL CELLS
   NT  GAS CELLS
   NT  KERR CELLS
   NT  LITHIUM CHLORINE CELLS
   NT  LOAD CELLS
   NT  PHOTOELECTRIC CELLS(SEMICONDUCTOR)
   NT  POCKELS CELLS
   NT  SOLAR CELLS
   RT  CELLS(BIOLOGY)
   RT  COMPARTMENTS

CELLS(BIOLOGY)
   UF  BIOLOGICAL CELLS
   NT  CELL STRUCTURE
   NT  DIPLOID CELLS
   NT  FAT CELLS
   NT  FIBROBLASTS
   NT  GERM CELLS
   NT  HYBRIDOMAS
   NT  MAST CELLS
   NT  NERVE CELLS
   NT  PHAGOCYTES
   NT  PNEUMOCYTES
   NT  STEM CELLS
   NT  THYMOCYTES
   NT  TISSUE CULTURE CELLS
   RT  CELLS

CELLS(ELECTRIC STORAGE)
   Use  STORAGE BATTERIES

CELLS(ELECTROLYTIC)
   Use  ELECTROLYTIC CELLS

CELLULAR COMMUNICATIONS
SN: 01-JUN-1997 - APPLY THIS TERM TO ALL TECHNOLOGY INVOLVING CELL TELEPHONES.
   UF  cell phone
   UF  cellular phone
   UF  mobile phone
   BT  WIRELESS COMMUNICATIONS
   NT  RADIOTELEPHONES
   RT  MOBILE COMPUTING

cellular phone
   Use  CELLULAR COMMUNICATIONS

CELLULAR PLASTICS
   Use  EXPANDED PLASTICS

CELLULASE
   BT  GLYCOSIDE HYDROLASES

CELLULOSE
   UF  COTTON CELLULOSE
   BT  POLYSACCHARIDES
   NT  OXYCELLULOSE
   RT  LIGNIN

CELLULOSE ACETATES
   BT  ACETATES
   BT  CELLULOSE ESTERS
   BT  CELLULOSIC RESINS

CELLULOSE ESTERS
   BT  ESTERS
   NT  CELLULOSE ACETATES
   NT  NITROCELLULOSE

CELLULOSE ETHERS
   BT  CELLULOSIC RESINS
   BT  ETHERS
   NT  ETHYL CELLULOSE
   NT  METHYL CELLULOSE

CELLULOSE NITRATE
   Use  NITROCELLULOSE

CELLULOSIC PLASTICS
   Use  CELLULOSIC RESINS

CELLULOSIC POLYMERS
   Use  CELLULOSIC RESINS

CELLULOSIC RESINS
   UF  CELLULOSIC PLASTICS
   UF  CELLULOSIC POLYMERS
   BT  THERMOPLASTIC RESINS
   NT  CELLULOSE ACETATES
   NT  CELLULOSE ETHERS

CEMENTS
   BT  CERAMIC MATERIALS
   RT  PORTLAND CEMENT

CEMENTS(ADHESIVES)
   Use  ADHESIVES

CENSORSHIP
SN: 01-SEP-1981 - THE PROCESS OF EXCLUDING FROM CONSCIOUSNESS THOSE IDEALS AND FEELINGS THAT WOULDBE INTOLERABLE IN OTHER THAN SYMBOLIC FORM.
   RT  HUMAN RIGHTS

CENSUS
   BT  COUNTING METHODS
   RT  DEMOGRAPHY

CENTER OF GRAVITY
   UF  NEUTRAL POINT
   BT  GRAVITY
   RT  LOAD DISTRIBUTION

CENTRAL AMERICA
   BT  LATIN AMERICA
   BT  NORTH AMERICA
   NT  BELIZE
   NT  COSTA RICA
   NT  EL SALVADOR
   NT  GUATEMALA
   NT  HONDURAS
   NT  MEXICO
   NT  NICARAGUA
   NT  PANAMA

CENTRAL ASIA
SN: 01-JUL-2007
   BT  ASIA
   NT  AFGHANISTAN
   NT  KAZAKHSTAN
   NT  KIRGYZIA
   NT  MONGOLIA
   NT  TAJIKISTAN
   NT  TURKMENISTAN
   NT  UZBEKISTAN

CENTRAL EUROPE
   BT  EUROPE
   NT  AUSTRIA
   NT  GERMANY

CENTRAL NERVOUS SYSTEM
   BT  NERVOUS SYSTEM
   NT  ATAXIA
   NT  BRAIN
   NT  HIPPOCAMPUS
   NT  SPINAL CORD

CENTRAL NERVOUS SYSTEM DEPRESSANTS
   Use  CNS DEPRESSANTS

CENTRAL NERVOUS SYSTEM STIMULANTS
   Use  CNS STIMULANTS

CENTRAL PROCESSING UNITS
   BT  COMPUTERS
   NT  BINARY PROCESSORS
   NT  PARALLEL PROCESSORS
   NT  SERIAL PROCESSORS

CENTRALIZED
   BT  POSITION(LOCATION)

CENTRIFUGAL CASTING
   BT  CASTING

CENTRIFUGAL COMPRESSORS
SN: COMPRESSORS PRODUCING DISCHARGE FLOWS PERPENDICULAR TO THE AXIS OF ROTATION OF THE FANS OR IMPELLERS.
   BT  ROTARY COMPRESSORS
   NT  AEROTHERMOPRESSORS

CENTRIFUGAL FIELDS
   BT  GRAVITATIONAL FIELDS
   NT  CENTRIFUGAL FORCE

CENTRIFUGAL FORCE
   BT  CENTRIFUGAL FIELDS
   RT  ANGULAR ACCELERATION

CENTRIFUGAL PUMPS
SN: PUMPS PRODUCING DISCHARGE FLOWS PERPENDICULAR TO THE AXIS OF ROTATION OF THE ROTORS.
   BT  ROTARY PUMPS

CENTRIFUGE SEPARATION
   BT  ISOTOPE SEPARATION

CENTRIFUGES
   BT  LABORATORY EQUIPMENT
   NT  ULTRACENTRIFUGES

CEPHALOMETRY
   BT  ANTHROPOMETRY

CEPHALOPODA
   UF  SQUIDS
   BT  MOLLUSCA
   NT  DECAPODA

CEPSTRUM TECHNIQUE
   BT  SPECTRUM ANALYSIS

CERAMALS
   Use  CERMETS

CERAMIC BODIES
   BT  BODIES

CERAMIC CAPACITORS
   BT  CAPACITORS
   NT  GLASS CAPACITORS

CERAMIC COATINGS
   BT  COATINGS
   NT  GLAZES
   RT  CERAMIC MATERIALS
   RT  FIRING(CERAMICS)

CERAMIC ENGINEERING
SN: The science and technology of creating objects from inorganic, non-metallic materials. This is done either by the action of heat, or at lower temperatures using precipitation reactions from high purity chemical solutions. The term includes the purification of raw materials, the study and production of the chemical compounds concerned, their formation into components and the study of their structure, composition and properties. (July 2011)
   Use  MATERIALS ENGINEERING

CERAMIC FIBERS
   BT  FIBERS

CERAMIC MATERIALS
SN: MATERIALS MADE ESSENTIALLY FROM NONMETALLIC MINERALS BY FIRING AT HIGH TEMPERATURES.
   NT  BRICK
   NT  CEMENTS
   NT  FRIT
   NT  GLASS
   NT  TILES
   RT  ABRASIVES
   RT  CERAMIC COATINGS
   RT  CERMETS

CERAMIC MATRIX COMPOSITES
SN: 01-OCT-1991
   BT  COMPOSITE MATERIALS

CERCARIAE
   BT  LARVAE

CEREAL PRODUCTS
   BT  CEREALS
   NT  FLOUR

CEREALS
SN: PLANTS YIELDING SEEDS SUITABLE FOR FOOD;ALSO, FOODSTUFFS PREPARED FROM SUCH SEEDS.
   BT  FOOD
   NT  BARLEY
   NT  CEREAL PRODUCTS
   NT  CORN
   NT  WHEAT

CEREBELLUM
   BT  BRAIN

CEREBRAL CORTEX
   BT  CEREBRUM
   NT  VISUAL CORTEX

CEREBROSPINAL FLUID
   BT  BODY FLUIDS

CEREBROSPINAL MENINGITIS
   BT  MENINGITIS

CEREBROVASCULAR SYSTEM
   BT  ANATOMY

CEREBRUM
   BT  BRAIN
   NT  CEREBRAL CORTEX

CERENKOV RADIATION
   BT  ELECTROMAGNETIC RADIATION
   BT  LIGHT

CERIUM
   BT  RARE EARTH ELEMENTS
   RT  CERIUM ALLOYS
   RT  CERIUM COMPOUNDS

CERIUM ALLOYS
   BT  RARE EARTH ALLOYS
   RT  CERIUM

CERIUM COMPOUNDS
   BT  RARE EARTH COMPOUNDS
   RT  CERIUM

CERMETS
   UF  CERAMALS
   BT  REFRACTORY MATERIALS
   RT  CERAMIC MATERIALS

CESARO TRANSFORM
   Use  SERIES(MATHEMATICS)

CESIUM
   BT  ALKALI METALS
   RT  CESIUM ALLOYS
   RT  CESIUM COMPOUNDS

CESIUM ALLOYS
   BT  ALKALI METAL ALLOYS
   RT  CESIUM

CESIUM COMPOUNDS
   BT  ALKALI METAL COMPOUNDS
   RT  CESIUM

CESIUM ELECTRON TUBES
   BT  PHOTOTUBES

CETACEA
   BT  AQUATIC ANIMALS
   BT  MAMMALS
   NT  DOLPHINS(MAMMALS)
   NT  PORPOISES
   NT  WHALES

CETANE NUMBER
   BT  ANTIKNOCK
   RT  DIESEL FUELS

CF GRAMMARS
   Use  CONTEXT FREE GRAMMARS

CG
   Use  PHOSGENE

CHAFF
   BT  RADAR CONFUSION REFLECTORS
   RT  CHAFF CUTTERS
   RT  CHAFF DISPENSERS
   RT  STRAW

CHAFF CUTTERS
   BT  CUTTERS
   RT  CHAFF

CHAFF DISPENSERS
   BT  DISPENSERS
   RT  CHAFF

CHAGAS DISEASE
   BT  TRYPANOSOMIASIS
   RT  TRYPANOSOMA

CHAIN REACTIONS
   BT  NUCLEAR REACTIONS
   RT  FISSION

CHAINS
   NT  ANCHOR CHAINS
   NT  TIRE CHAINS
   RT  MECHANICAL CABLES

CHAIRS
   BT  FURNITURE
   RT  SEATS

CHALCOGENS
   BT  GROUP VI COMPOUNDS

CHALCOPYRITES
   Use  PYRITE

CHALKING PROPERTIES
   BT  PHYSICAL PROPERTIES

CHALONES
   RT  ENDOCRINOLOGY

CHAMBERS
   NT  ALTITUDE CHAMBERS
   NT  ANECHOIC CHAMBERS
   NT  COMBUSTION CHAMBERS
   NT  HYPERBARIC CHAMBERS
   NT  HYPOBARIC CHAMBERS
   NT  IONIZATION CHAMBERS
   NT  PLENUM CHAMBERS
   NT  SPACE SIMULATION CHAMBERS
   NT  VACUUM CHAMBERS

CHAMPUS
SN: 01-OCT-1993 - CIVILIAN HEALTH AND MEDICAL PROGRAM OF THE UNIFORMED SERVICES.
   BT  HEALTH CARE MANAGEMENT
   BT  MILITARY MEDICINE

CHANCROID
   BT  ULCERS

CHANGE DETECTION
   BT  DETECTION
   RT  PATTERN RECOGNITION

CHANNEL FLOW
   BT  FLOW
   NT  PIPE FLOW

CHANNEL SELECTORS
   UF  SELECTORS (CHANNELS)
   BT  ELECTRIC SWITCHES
   BT  TUNING DEVICES

CHANNELS
SN: Retired November 2011.
   BT  retired descriptors

CHANNELS(WATERWAYS)
   BT  WATERWAYS
   NT  DREDGING

CHAOS
SN: 01-OCT-1991 - A SYSTEM MATHEMATICALLY WELL DEFINED BUTSO SENSITIVE TO INITIAL CONDITIONS THATITS FINAL STATE APPEARS RANDOM.
   BT  STOCHASTIC PROCESSES

CHAPLAINS
   BT  OFFICER PERSONNEL
   RT  RELIGION

CHAR OIL
   BT  COAL

CHARACTER GENERATORS
   BT  GENERATORS

CHARACTER RECOGNITION
   BT  PATTERN RECOGNITION
   NT  OPTICAL CHARACTER RECOGNITION
   RT  LEGIBILITY
   RT  RESOLUTION

CHARCOAL
   BT  ACTIVATED CARBON

CHARGE CARRIERS
   BT  SEMICONDUCTORS
   NT  FREE ELECTRONS
   NT  HOLES(ELECTRON DEFICIENCIES)

CHARGE COUPLED DEVICES
   UF  CCD
   BT  SEMICONDUCTOR DEVICES

CHARGE DENSITY
   BT  ELECTRIC CHARGE

CHARGE TRANSFER
   BT  ELECTRIC CHARGE
   BT  TRANSFER

CHARGED PARTICLES
   UF  IONS (SUBATOMIC)
   NT  ALPHA PARTICLES
   NT  ANTIPROTONS
   NT  DEUTERONS
   NT  ELECTRONS
   NT  IONS
   NT  MUONS
   NT  POSITRONS
   NT  PROTONS
   NT  RECOIL PARTICLES
   NT  TRAPPING(CHARGED PARTICLES)
   NT  TRITONS

CHARGES(EXPLOSIVES)
   Use  EXPLOSIVE CHARGES

CHARPY IMPACT TESTS
   BT  IMPACT TESTS

CHARRING
   BT  COMBUSTION
   RT  PYROLYSIS

CHARTS
   NT  FLOW CHARTING
   NT  METEOROLOGICAL CHARTS
   RT  DIAGRAMS

CHASSIS
   BT  FRAMES
   NT  VEHICLE CHASSIS COMPONENTS

CHEBYSHEV APPROXIMATIONS
   BT  APPROXIMATION(MATHEMATICS)
   RT  MINIMAX TECHNIQUE

CHEBYSHEV FUNCTIONS
   BT  FUNCTIONS(MATHEMATICS)

CHEBYSHEV POLYNOMIALS
   BT  POLYNOMIALS

CHECK VALVES
   BT  VALVES

CHECKOUT EQUIPMENT
   BT  TEST EQUIPMENT
   RT  CHECKOUT PROCEDURES
   RT  GROUND SUPPORT EQUIPMENT

CHECKOUT PROCEDURES
   UF  COUNTDOWN PROCEDURES
   UF  PRE-LAUNCH PROCEDURES
   RT  CHECKOUT EQUIPMENT
   RT  TEST METHODS

CHEESES
   BT  DAIRY PRODUCTS

CHELATE COMPOUNDS
   UF  POLYDENTATE GROUPS
   BT  COMPLEX COMPOUNDS

CHELATING AGENTS
   BT  CHEMICAL AGENTS

CHELATION
   BT  CHEMICAL REACTIONS

CHELONIA
   Use  REPTILES

CHEMICAL AGENT DETECTORS
   BT  DETECTORS
   NT  CRAYON DETECTORS

CHEMICAL AGENT SIMULANTS
   BT  CHEMICAL WARFARE AGENTS

CHEMICAL AGENT TERRORISM
SN: 01-APR-2002
   BT  TERRORISM
   RT  CHEMICAL WARFARE AGENTS

CHEMICAL AGENTS
   NT  ANTIMATERIEL AGENTS
   NT  BINARY CHEMICAL AGENTS
   NT  BIOLOGICAL STAINS
   NT  BLEACHING AGENTS
   NT  CHELATING AGENTS
   NT  CHEMICAL WARFARE AGENTS
   NT  CRYOPROTECTIVE AGENTS
   NT  DEFOLIANTS
   NT  DITHIZONE
   NT  GRIGNARD REAGENTS
   NT  LETHAL AGENTS
   NT  TOXIC AGENTS
   RT  CHEMICAL COMPOUNDS

CHEMICAL ANALOGS
   BT  CHEMICALS

CHEMICAL ANALYSIS
   UF  CHEMICAL DETERMINATION
   UF  DETERMINATION (CHEMICAL)
   NT  ASSAYING
   NT  CHROMATOGRAPHY
   NT  COLORIMETRIC ANALYSIS
   NT  GAS ANALYSIS
   NT  GRAVIMETRIC ANALYSIS
   NT  MICROANALYSIS
   NT  POLAROGRAPHIC ANALYSIS
   NT  QUALITATIVE ANALYSIS
   NT  QUANTITATIVE ANALYSIS
   NT  RADIOACTIVATION ANALYSIS
   NT  VOLUMETRIC ANALYSIS
   NT  WATER ANALYSIS
   RT  ANALYTICAL CHEMISTRY

CHEMICAL ATTACK(DEGRADATION)
   BT  DEGRADATION
   NT  CORROSION
   NT  RUST(OXIDATION)

CHEMICAL BOMBS
SN: BOMBS CHARGED WITH CHEMICAL WARFARE AGENTS.
   BT  BOMBS

CHEMICAL BONDS
SN: LINKAGES BETWEEN ATOMS IN MOLECULES OR IONS.
   BT  CHEMICAL PROPERTIES
   NT  COVALENT BONDS
   NT  CROSSLINKING(CHEMISTRY)
   NT  HYDROGEN BONDS
   NT  LIGANDS
   NT  METAL METAL BONDS
   NT  ROTATION(CHEMICAL BONDS)

CHEMICAL BURNS
SN: 01-OCT-2002
   BT  BURNS(INJURIES)

CHEMICAL CLEANING
   BT  CLEANING
   NT  PICKLING

CHEMICAL COMPOSITION
   BT  COMPOSITION(PROPERTY)

CHEMICAL COMPOUNDS
   NT  ALKALINE EARTH COMPOUNDS
   NT  BINARY COMPOUNDS
   NT  CARBON COMPOUNDS
   NT  CHEMICAL DERIVATIVES
   NT  COMPLEX COMPOUNDS
   NT  GROUP I COMPOUNDS
   NT  GROUP II COMPOUNDS
   NT  GROUP II-VI COMPOUNDS
   NT  GROUP III COMPOUNDS
   NT  GROUP IV COMPOUNDS
   NT  GROUP V COMPOUNDS
   NT  GROUP VI COMPOUNDS
   NT  GROUP VII COMPOUNDS
   NT  GROUP VIII COMPOUNDS
   NT  HEAVY ELEMENT COMPOUNDS
   NT  HYDRIDES
   NT  HYDROGEN COMPOUNDS
   NT  INORGANIC COMPOUNDS
   NT  MALODOROUS COMPOUNDS
   NT  MESOMORPHIC COMPOUNDS
   NT  METAL COMPOUNDS
   NT  MONOMERS
   NT  NONMETALLIC COMPOUNDS
   NT  OXYGEN COMPOUNDS
   NT  POLYMERS
   NT  RARE EARTH COMPOUNDS
   NT  SALTS
   NT  SULFUR COMPOUNDS
   NT  TERNARY COMPOUNDS
   NT  TRANSITION METAL COMPOUNDS
   RT  CHEMICAL AGENTS
   RT  CHEMICAL ELEMENTS
   RT  CHEMICAL RADICALS
   RT  CHEMISTRY

CHEMICAL CONTAMINATION
   BT  CONTAMINATION

CHEMICAL DERIVATIVES
   BT  CHEMICAL COMPOUNDS

CHEMICAL DETECTION
SN: 01-DEC-1984 - DETECTION OF OBJECTS OR PERSONNEL BY OBSERVATION OF THEIR CHEMICAL COMPOSITION.
   BT  DETECTION

CHEMICAL DETERMINATION
   Use  CHEMICAL ANALYSIS

CHEMICAL DISSOCIATION
   BT  CHEMICAL REACTIONS

CHEMICAL ELEMENTS
   NT  METALS
   NT  NONMETALS
   NT  TRACE ELEMENTS
   RT  CHEMICAL COMPOUNDS
   RT  CHEMISTRY

CHEMICAL ENGINEERING
   BT  ENGINEERING
   RT  CHEMISTRY

CHEMICAL EQUILIBRIUM
   BT  CHEMICAL REACTIONS
   NT  ACID BASE EQUILIBRIUM

CHEMICAL INDICATORS
   UF  ADSORPTION INDICATORS
   BT  CHEMISTRY
   NT  BROMPHENOL BLUE
   NT  LITMUS PAPER

CHEMICAL INDUSTRY
   BT  INDUSTRIES
   NT  PETROLEUM INDUSTRY
   NT  PLASTICS INDUSTRY

CHEMICAL INFORMATION SYSTEMS
   BT  INFORMATION SYSTEMS

CHEMICAL LABORATORIES
   BT  LABORATORIES

CHEMICAL LASERS
   BT  LASERS
   NT  DEUTERIUM FLUORIDE LASERS

CHEMICAL MILLING
   BT  MATERIAL FORMING

CHEMICAL OCEANOGRAPHY
   BT  OCEANOGRAPHY

CHEMICAL ORDNANCE
   BT  ORDNANCE

CHEMICAL PRECIPITATION
   UF  PRECIPITATION (CHEMICAL)
   BT  CHEMICAL REACTIONS
   BT  PRECIPITATION
   BT  SEPARATION
   NT  PRECIPITATES

CHEMICAL PROJECTILES
   BT  PROJECTILES

CHEMICAL PROPERTIES
   BT  CHEMISTRY
   NT  ALKALINITY
   NT  AMPHOTERIC
   NT  CALORIFIC VALUE
   NT  CHEMICAL BONDS
   NT  HEAT OF ACTIVATION
   NT  HEAT OF COMBUSTION
   NT  HEAT OF FORMATION
   NT  HEAT OF REACTION
   NT  HEAT OF SOLUTION
   NT  LATENT HEAT
   NT  PH FACTOR
   NT  PHOTOCHROMISM
   NT  PHYSICOCHEMICAL PROPERTIES
   NT  SALINITY
   NT  SAPONIFICATION NUMBER

CHEMICAL RADICALS
   BT  CHEMISTRY
   NT  BUTYL RADICALS
   NT  CARBOXYL RADICALS
   NT  CHROMYL RADICALS
   NT  FREE RADICALS
   NT  HEXYL RADICALS
   NT  HYDROXYL RADICALS
   NT  NITRO RADICALS
   NT  OCTYL RADICALS
   NT  ORGANIC RADICALS
   NT  PERCHLORYL RADICALS
   NT  SULFONYL RADICALS
   NT  URANYL RADICALS
   NT  ZIRCONYL RADICALS
   RT  CHEMICAL COMPOUNDS

CHEMICAL REACTIONS
   BT  CHEMISTRY
   NT  ACYLATION
   NT  ADDITION REACTIONS
   NT  ALKYLATION
   NT  CATALYSIS
   NT  CHELATION
   NT  CHEMICAL DISSOCIATION
   NT  CHEMICAL EQUILIBRIUM
   NT  CHEMICAL PRECIPITATION
   NT  COMBUSTION
   NT  CONDENSATION REACTIONS
   NT  CURING
   NT  DEHYDROGENATION
   NT  DESULFURIZATION
   NT  DISSOCIATION
   NT  ELIMINATION REACTIONS
   NT  ENDOTHERMIC REACTIONS
   NT  EXCHANGE REACTIONS
   NT  EXOTHERMIC REACTIONS
   NT  FRIEDEL CRAFTS REACTIONS
   NT  GLYCEROLIZATION
   NT  HALOGENATION
   NT  HYDROGENATION
   NT  IODINATION
   NT  IONIZATION
   NT  ISOMERIZATION
   NT  METALATION
   NT  NEUTRALIZATION
   NT  NITRATION
   NT  NITRIFICATION
   NT  NITROFLUORINATION
   NT  OXIDATION
   NT  OXIDATION REDUCTION REACTIONS
   NT  PHOTOCHEMICAL REACTIONS
   NT  POLYMERIZATION
   NT  REACTION KINETICS
   NT  RECOMBINATION REACTIONS
   NT  REDUCTION(CHEMISTRY)
   NT  SCHOENEMANN REACTIONS
   NT  SIDE REACTIONS
   NT  SOLVATION
   NT  SOLVOLYSIS
   NT  SUBSTITUTION REACTIONS
   NT  SULFATION
   NT  SULFURATION
   NT  SURFACE REACTIONS
   NT  SYNTHESIS(CHEMISTRY)
   RT  HEAT OF REACTION

CHEMICAL REACTORS
   BT  LABORATORY EQUIPMENT

CHEMICAL SHIFTS
   BT  NUCLEAR MAGNETIC RESONANCE

CHEMICAL STABILITY
SN: 01-OCT-2004
   BT  REACTION KINETICS
   BT  STABILITY
   NT  COMBUSTION STABILITY

CHEMICAL VAPOR DEPOSITION
SN: 01-OCT-1993 - THE GROWTH OF THIN SOLID FILMS ON A CRYSTALLINE SUBSTRATE AS A RESULT OF THERMOCHEMICAL VAPOR PHASE REACTIONS.
   BT  VAPOR DEPOSITION

CHEMICAL WARFARE
   BT  WARFARE
   NT  CHEMICAL WARFARE AGENTS

CHEMICAL WARFARE AGENTS
   BT  CHEMICAL AGENTS
   BT  CHEMICAL WARFARE
   NT  ANTIPERSONNEL AGENTS
   NT  BLOOD AGENTS
   NT  C AGENTS
   NT  CHEMICAL AGENT SIMULANTS
   NT  NONLETHAL AGENTS
   NT  POISONOUS GASES
   RT  CHEMICAL AGENT TERRORISM

CHEMICAL WARFARE CASUALTIES
   UF  GAS CASUALTIES
   BT  CASUALTIES

CHEMICAL WARFARE INJURIES
   UF  LEWISITE INJURIES
   BT  WOUNDS AND INJURIES

CHEMICAL WARFARE LABORATORIES
   BT  LABORATORIES

CHEMICALS
   NT  ACIDS
   NT  BASES(CHEMISTRY)
   NT  CHEMICAL ANALOGS
   NT  PHOTOGRAPHIC CHEMICALS
   NT  REACTANTS(CHEMISTRY)

CHEMILUMINESCENCE
   BT  LUMINESCENCE
   RT  AIRGLOW
   RT  PHOSPHORESCENCE

CHEMISORPTION
   BT  ADSORPTION

CHEMISTRY
   NT  ANALYTICAL CHEMISTRY
   NT  ATMOSPHERIC CHEMISTRY
   NT  BIOCHEMISTRY
   NT  CHEMICAL INDICATORS
   NT  CHEMICAL PROPERTIES
   NT  CHEMICAL RADICALS
   NT  CHEMICAL REACTIONS
   NT  CHEMURGY
   NT  CRYSTAL CHEMISTRY
   NT  ELECTROCHEMISTRY
   NT  INORGANIC CHEMISTRY
   NT  MATERIALS SCIENCE
   NT  ORGANIC CHEMISTRY
   NT  PETROCHEMISTRY
   NT  PHYSICAL CHEMISTRY
   NT  RADIATION CHEMISTRY
   NT  RADIOCHEMISTRY
   NT  STEREOCHEMISTRY
   NT  SURFACE CHEMISTRY
   NT  THERMOCHEMISTRY
   NT  WATER CHEMISTRY
   RT  CHEMICAL COMPOUNDS
   RT  CHEMICAL ELEMENTS
   RT  CHEMICAL ENGINEERING
   RT  GEOCHEMISTRY

CHEMISTS
   BT  SCIENTISTS

CHEMORECEPTORS
   BT  END ORGANS
   RT  SMELL
   RT  TASTE

CHEMOTAXIS
   BT  STIMULATION(PHYSIOLOGY)

CHEMOTHERAPEUTIC AGENTS
SN: CHEMICAL AGENTS USED IN THE TREATMENT OF INFECTIOUS DISEASES. SUCH AGENTS KILL INVADING PARASITES OR MINIMIZE THEIR EFFECTS WITHOUT HARMING THE HOST.
   UF  BACTERIOSTATIC SUBSTANCES
   UF  VIRICIDES
   BT  DRUGS
   NT  ANTIBIOTICS
   NT  ANTIMETABOLITES
   NT  ANTIMICROBIAL AGENTS
   NT  ANTINEOPLASTIC AGENTS
   NT  ANTIPARASITIC DRUGS
   NT  AZIDOTHYMIDINE
   RT  CHEMOTHERAPY

CHEMOTHERAPY
   BT  THERAPY
   NT  ANTISENSE THERAPY
   NT  IMMUNOTHERAPY
   RT  CHEMOTHERAPEUTIC AGENTS

CHEMURGY
SN: 01-DEC-1984 - A BRANCH OF CHEMISTRY CONCERNED WITH THE PROFITABLE UTILIZATION OF ORGANIC RAW MATERIALS, ESPECIALLY AGRICULTURAL PRODUCTS, FOR NONFOOD PURPOSES SUCH AS PAINTS AND VARNISHES.
   BT  CHEMISTRY
   RT  AGRICULTURAL CHEMISTRY

CHERRIES
   BT  FRUITS

CHESAPEAKE BAY
   BT  BAYS
   BT  ESTUARIES

CHEST
   Use  THORAX

CHEWING
   Use  MASTICATION

CHI SQUARE TEST
   BT  STATISTICAL TESTS

CHICK EMBRYO TECHNIQUE
   Use  EMBRYONATED EGG TECHNIQUE

CHICKENS
   BT  LIVESTOCK
   RT  POULTRY

CHIGGERS
   Use  TROMBICULID MITES

CHIKUNGUNYA VIRUS
   BT  GROUP A ARBOVIRUSES

CHILD ABUSE
   Use  DOMESTIC VIOLENCE

CHILDBIRTH
   Use  BIRTH

CHILDREN
   BT  YOUTH
   NT  INFANTS
   RT  PEDIATRICS

CHILE
   BT  SOUTH AMERICA

CHILLING
   Use  COOLING

CHIMES
   Use  AUDITORY SIGNALS

CHIMNEYS
   BT  SMOKE STACKS

CHIMPANZEES
   BT  APES

CHINA
   BT  COMMUNIST COUNTRIES
   BT  FAR EAST
   NT  MANCHURIA
   NT  TIBET

CHINESE LANGUAGE
   BT  NATURAL LANGUAGE

CHIPPING HAMMERS
   Use  HAMMERS

CHIPS(ELECTRONICS)
   BT  MODULES(ELECTRONICS)
   NT  FLIP CHIPS
   NT  MULTICHIP MODULES

CHIRP FILTERS
   BT  FILTERS

CHIRP RADAR
   BT  SWEEP FREQUENCY RADAR

CHIRP SONAR
SN: 01-JAN-1999
   BT  SONAR

CHITIN
   UF  N-ACETYL-D-GLUCOSAMINE
   BT  POLYSACCHARIDES

CHLAMYDIA
   BT  CHLAMYDIACEAE
   NT  CHLAMYDIA TRACHOMATIS

CHLAMYDIA TRACHOMATIS
   BT  CHLAMYDIA
   RT  TRACHOMA

CHLAMYDIACEAE
   BT  RICKETTSIALES
   NT  CHLAMYDIA
   NT  MIYAGAWANELLA

CHLORALOSE
   BT  ANESTHETICS

CHLORAMPHENICOL
   BT  ANTIBIOTICS

CHLORATES
   BT  CHLORINE COMPOUNDS
   NT  BARIUM CHLORATES

CHLORDANE
   BT  HALOGENATED HYDROCARBONS
   BT  INSECTICIDES

CHLORELLA
   BT  ALGAE

CHLORIDES
   BT  HALIDES
   NT  ACETYL CHLORIDE
   NT  FLUOROCHLORIDES
   NT  HYDROGEN CHLORIDE
   NT  LITHIUM CHLORIDE
   NT  OXYCHLORIDES
   NT  PHOSPHONITRILE CHLORIDES
   NT  POLYVINYL CHLORIDE
   NT  POTASSIUM CHLORIDE
   NT  SILVER CHLORIDE
   NT  SODIUM CHLORIDE
   NT  THIONYL CHLORIDE

CHLORINATED HYDROCARBONS
   BT  HALOGENATED HYDROCARBONS
   NT  CHLOROETHANES
   NT  POLYCHLORINATED BIPHENYLS

CHLORINATION
   BT  HALOGENATION
   RT  WATER TREATMENT

CHLORINATION EQUIPMENT
   BT  WATER POLLUTION CONTROL EQUIPMENT

CHLORINE
   BT  HALOGENS
   RT  CHLORINE COMPOUNDS

CHLORINE COMPOUNDS
   BT  HALOGEN COMPOUNDS
   NT  CHLORATES
   NT  CHLORINE TRIFLUORIDE
   NT  CHLORITES
   NT  HYPOCHLORITES
   NT  PERCHLORATES
   RT  CHLORINE

CHLORINE TRIFLUORIDE
   BT  CHLORINE COMPOUNDS
   BT  FLUORIDES

CHLORITES
   BT  CHLORINE COMPOUNDS

CHLOROBENZENE
   BT  BENZENE COMPOUNDS
   BT  HALOGENATED HYDROCARBONS

CHLOROETHANES
   BT  CHLORINATED HYDROCARBONS
   BT  ETHANES
   NT  TRICHLOROETHANES

CHLOROFORM
   BT  ANESTHETICS
   BT  HALOGENATED HYDROCARBONS

CHLOROMETHANES
   BT  HALOGENATED HYDROCARBONS

CHLOROPHYLLS
   UF  PHEOPHYTINS
   BT  ORGANIC PIGMENTS
   BT  PORPHYRINS
   RT  PHOTOSYNTHESIS

CHLOROPHYTA
   Use  ALGAE

CHLOROPLASTS
   BT  PLANT TISSUE
   RT  PHOTOSYNTHESIS

CHLOROPRENES
   BT  HALOGENATED HYDROCARBONS
   NT  NEOPRENE

CHLOROQUINE
   BT  ANTIMALARIALS

CHLOROSILANES
   BT  SILANES
   NT  TRICHLOROSILANE

CHLORPROMAZINE
   BT  PHENOTHIAZINES

CHLORTETRACYCLINE
   BT  TETRACYCLINES

CHOCKS
   BT  BRAKES

CHOCOLATE
   BT  CACAO
   BT  FOOD

CHOICE
   Use  SELECTION

CHOKING AGENTS
   BT  ANTIPERSONNEL AGENTS
   BT  NONLETHAL AGENTS

CHOLELYTIC AGENTS
   Use  PARASYMPATHOLYTIC AGENTS

CHOLERA
   BT  BACTERIAL DISEASES
   BT  GASTROINTESTINAL DISEASES
   BT  TROPICAL DISEASES
   RT  HOG CHOLERA VIRUS
   RT  VIBRIO CHOLERAE

CHOLESTENONE
   Use  STEROIDS

CHOLESTEROL
   BT  LIPIDS
   BT  STEROIDS
   RT  HYPERCHOLESTEROLEMIA

CHOLESTEROL ESTERASE
   Use  CARBOXYLIC ESTER HYDROLASES

CHOLESTERYL ESTERS
   BT  ESTERS

CHOLINE ACETYLTRANSFERASE
   BT  TRANSFERASES

CHOLINERGIC BLOCKING AGENTS
   Use  PARASYMPATHOLYTIC AGENTS

CHOLINERGIC DRUGS
   Use  PARASYMPATHOMIMETIC AGENTS

CHOLINERGIC NERVE STIMULANTS
   Use  PARASYMPATHOMIMETIC AGENTS

CHOLINERGIC NERVES
   BT  AUTONOMIC NERVOUS SYSTEM

CHOLINES
   UF  BILINEURINE
   BT  VITAMIN B COMPLEX
   NT  ACETYLCHOLINE
   NT  LECITHIN
   RT  SERINE

CHOLINESTERASE
   BT  CARBOXYLIC ESTER HYDROLASES
   NT  ACETYLCHOLINESTERASE
   RT  NEUROMUSCULAR TRANSMISSION

CHOLINESTERASE INHIBITORS
   UF  ANTICHOLINESTERASES
   BT  ENZYME INHIBITORS
   BT  PARASYMPATHOMIMETIC AGENTS
   NT  PHYSOSTIGMINE
   NT  PYRIDOSTIGMINE BROMIDE

CHONDRICHTHYES
   BT  FISHES
   NT  SHARKS

CHONDRIN
   Use  COLLAGEN

CHONDROITIN
   BT  MUCOPOLYSACCHARIDES

CHORIORETINAL BURNS
   BT  BURNS(INJURIES)
   BT  RADIATION INJURIES
   RT  RETINA

CHOROID PLEXUS
   BT  BRAIN

CHORUS(DAWN PHENOMENON)
   Use  DAWN CHORUS

CHRISTIANITY
SN: A religion based on the life and teachings of Jesus as presented in canonical gospels and other New Testament writings. Adherents of Christianity are known as Christians. (July 2011)
   UF  Christians
   BT  RELIGION

Christians
   Use  CHRISTIANITY

CHRISTMAS ISLAND
   BT  POLYNESIA

CHROMATES
   BT  CHROMIUM COMPOUNDS

CHROMATICITY
   BT  ELECTROMAGNETIC PROPERTIES
   BT  OPTICAL PROPERTIES

CHROMATIN
   BT  CHROMOSOMES
   BT  NUCLEOPROTEINS

CHROMATOGRAPHIC ANALYSIS
SN: THE ANALYSIS OF MIXTURES OF SOLUTIONS BYUSING ADSORBENTS TO SEPARATE THE SUBSTANCES IN SOLUTION BY SELECTIVE ADSORPTION.
   BT  CHROMATOGRAPHY

CHROMATOGRAPHS
   BT  CHROMATOGRAPHY
   BT  LABORATORY EQUIPMENT

CHROMATOGRAPHY
   BT  CHEMICAL ANALYSIS
   NT  CHROMATOGRAPHIC ANALYSIS
   NT  CHROMATOGRAPHS
   NT  COLUMN CHROMATOGRAPHY
   NT  GAS CHROMATOGRAPHY
   NT  GEL PERMEATION CHROMATOGRAPHY
   NT  LIQUID CHROMATOGRAPHY
   NT  PLASMA CHROMATOGRAPHY
   NT  THIN LAYER CHROMATOGRAPHY

CHROME
   Use  CHROMIUM

CHROMIC ACID
   BT  INORGANIC ACIDS

CHROMIUM
   UF  CHROME
   BT  TRANSITION METALS
   RT  CHROMIUM ALLOYS
   RT  CHROMIUM COMPOUNDS
   RT  CHROMIZING

CHROMIUM ALLOYS
   BT  ALLOYS
   NT  STAINLESS STEEL
   RT  CHROMIUM

CHROMIUM COMPOUNDS
   BT  GROUP VI COMPOUNDS
   NT  CHROMATES
   RT  CHROMIUM

CHROMIZING
   BT  DIFFUSION COATING
   BT  PROTECTIVE TREATMENTS
   RT  CHROMIUM

CHROMOPHORES
   BT  DYES
   RT  PIGMENTS

CHROMOPROTEINS
   UF  HEMOCYANIN
   BT  PROTEINS(CONJUGATED)
   NT  HEMOGLOBIN

CHROMOSOMES
   BT  NUCLEI(BIOLOGY)
   NT  CHROMATIN
   NT  GENES

CHROMOSPHERE
   BT  SOLAR ATMOSPHERE

CHROMYL RADICALS
   BT  CHEMICAL RADICALS

CHRONOBIOLOGY
   BT  BIOLOGY
   NT  BIOLOGICAL RHYTHMS

CHRONOGRAPHS
   Use  CHRONOMETERS

CHRONOMETERS
   UF  CHRONOGRAPHS
   BT  CLOCKS
   BT  TIMING DEVICES
   NT  RADIO DOPPLER CHRONOGRAPHS
   NT  TIME INTERVAL COUNTERS
   RT  ATOMIC CLOCKS

CHRYSOPHYTA
   Use  ALGAE

CHUKCHI SEA
   BT  ARCTIC OCEAN

CHURCHES
   BT  BUILDINGS
   RT  RELIGION

CHUTES
   Use  CONVEYORS

CHYMOSINOGEN
   Use  ENZYME PRECURSORS

CHYMOTRYPSIN
   BT  PEPTIDE HYDROLASES

CICALA FUNCTIONS
   Use  SPECIAL FUNCTIONS(MATHEMATICS)

CILIA
   BT  TISSUES(BIOLOGY)
   RT  HAIR

CILIATA
   BT  PROTOZOA
   NT  BALANTIDIUM
   NT  PARAMECIUM

CINCHONA ALKALOIDS
   UF  ATABRINE
   UF  CINCHONINE
   BT  QUINOLINE ALKALOIDS
   NT  QUININE
   RT  PRIMAQUINE

CINCHONINE
   Use  CINCHONA ALKALOIDS

CINEFLUOROGRAPHIC CAMERAS
   Use  PHOTOFLUOROGRAPHIC CAMERAS

CINEMATOGRAPHY
   BT  MOTION PICTURE PHOTOGRAPHY
   NT  MOTION PICTURES

CINEPHOTOMACROGRAPHY
   BT  MOTION PICTURE PHOTOGRAPHY

CINEPHOTOMICROGRAPHY
   BT  MOTION PICTURE PHOTOGRAPHY

CINETHEODOLITES
   Use  PHOTOTHEODOLITES

CINNABAR
   BT  MINERALS
   BT  ORES(METAL SOURCES)

CINNAMIC ACID
   BT  ACRYLIC ACID

CIRCADIAN RHYTHMS
   BT  BIOLOGICAL RHYTHMS
   BT  DIURNAL VARIATIONS

circle of equal probability
   Use  CIRCULAR ERROR PROBABLE

CIRCLES
   BT  ANALYTIC GEOMETRY
   BT  CURVES(GEOMETRY)

CIRCUIT ANALYSIS
   BT  CIRCUITS

CIRCUIT BOARDS
   BT  CIRCUITS
   NT  PANEL BOARDS(ELECTRICITY)
   NT  PRINTED CIRCUIT BOARDS
   RT  PRINTED CIRCUITS

CIRCUIT BREAKERS
   UF  SURGE PROTECTORS
   BT  ELECTRIC SWITCHES
   RT  FUSES(ELECTRICAL)
   RT  SEQUENCE SWITCHES
   RT  SURGES

CIRCUIT INTERCONNECTIONS
   BT  ELECTRIC CONNECTORS
   NT  BEAM LEADS
   NT  OPTICAL INTERCONNECTIONS

CIRCUIT TESTERS
   BT  TEST EQUIPMENT
   RT  CIRCUITS

CIRCUITS
   BT  NETWORKS
   NT  CATHODE FOLLOWERS
   NT  CIRCUIT ANALYSIS
   NT  CIRCUIT BOARDS
   NT  COUPLING CIRCUITS
   NT  DELAY CIRCUITS
   NT  DIFFERENTIATING CIRCUITS
   NT  EQUIVALENT CIRCUITS
   NT  FLAT PACK CIRCUITS
   NT  GATES(CIRCUITS)
   NT  HYBRID CIRCUITS
   NT  IGNITION CIRCUITS
   NT  INVERTER CIRCUITS
   NT  LIMITER CIRCUITS
   NT  MAGNETIC CIRCUITS
   NT  MICROCIRCUITS
   NT  MICROPOWER CIRCUITS
   NT  MULTIVIBRATORS
   NT  NEGATIVE RESISTANCE CIRCUITS
   NT  OPTICAL CIRCUITS
   NT  PACKAGED CIRCUITS
   NT  PHASE SHIFT CIRCUITS
   NT  PRINTED CIRCUITS
   NT  REGISTERS(CIRCUITS)
   NT  SCALERS
   NT  SHORT CIRCUITS
   NT  SLOW WAVE CIRCUITS
   NT  SWITCHING CIRCUITS
   NT  TELECOMMUNICATION CIRCUITS
   NT  TIMING CIRCUITS
   NT  TRIGGER CIRCUITS
   NT  TUNED CIRCUITS
   RT  CIRCUIT TESTERS
   RT  WIRING DIAGRAMS

CIRCULAR
   BT  SHAPE

CIRCULAR ANTENNAS
   BT  ANTENNAS

circular error probability
   Use  CIRCULAR ERROR PROBABLE

CIRCULAR ERROR PROBABLE
SN: In the military science of ballistics, circular error probable (CEP) is an intuitive measure of a weapon system's accuracy. It is defined as the radius of a circle whose boundary contains 50% of the point(s) of impact.[
   UF  circle of equal probability
   UF  circular error probability
   BT  INTERCEPTION PROBABILITIES
   RT  MISS DISTANCE

CIRCULAR ORBITS
   BT  ORBITS

CIRCULAR WINGS
   BT  WINGS

CIRCULATING FUEL REACTORS
   BT  NUCLEAR REACTORS

CIRCULATION
   NT  BLOOD CIRCULATION
   NT  RECIRCULATION

CIRCULATORS(WAVEGUIDE)
   Use  WAVEGUIDE CIRCULATORS

CIRCULATORY INSUFFICIENCIES
SN: 01-JUL-2000 - ANY CONDITION CREATING PHYSICOLOGICAL STRESS BECAUSE OF A LIMIT TO BLOOD FLOW.
   BT  CARDIOVASCULAR DISEASES
   NT  AORTIC INSUFFICIENCY
   NT  PULMONARY INSUFFICIENCY

CIRCULATORY SYSTEM
   Use  CARDIOVASCULAR SYSTEM

CIRCUMLUNAR TRAJECTORIES
   BT  TRAJECTORIES

CIRRHOSIS
SN: 01-JUL-1998
   BT  FIBROSIS
   BT  LIVER DISEASES
   RT  ALCOHOLISM

CIRRUS CLOUDS
   BT  CLOUDS

CIS
SN: 01-OCT-1994 - Commonwealth of Independent States
   UF  COMMONWEALTH OF INDEPENDENT STATES
   BT  EURASIA
   NT  ARMENIA
   NT  AZERBAIJAN
   NT  BELARUS
   NT  KAZAKHSTAN
   NT  KIRGYZIA
   NT  MOLDOVA
   NT  RUSSIA
   NT  TAJIKISTAN
   NT  TURKMENISTAN
   NT  UKRAINE
   NT  UZBEKISTAN
   RT  USSR

CITIES
   Use  URBAN AREAS

CITRATES
   BT  ESTERS
   NT  ACID CITRATE DEXTROSE
   RT  CITRIC ACID

CITRIC ACID
   BT  CARBOXYLIC ACIDS
   RT  CITRATES

CITRUS FRUIT
   BT  FRUITS

CIVIC ACTION
   BT  POLITICAL SCIENCE

CIVIL AFFAIRS
   BT  POLITICAL SCIENCE
   NT  INTERAGENCY COORDINATION

CIVIL AVIATION
   BT  AERONAUTICS
   NT  COMMERCIAL AVIATION

CIVIL DEFENSE
   BT  DEFENSE SYSTEMS
   RT  DISASTERS
   RT  HOMELAND SECURITY
   RT  RIOT CONTROL

CIVIL DISTURBANCES
   RT  RIOT CONTROL
   RT  URBAN WARFARE

CIVIL ENGINEERING
   BT  ENGINEERING
   NT  COASTAL ENGINEERING
   NT  FLOOD CONTROL
   NT  GEOTECHNICAL ENGINEERING
   NT  STRUCTURAL ENGINEERING
   NT  TUNNELING

CIVIL SERVICE EMPLOYEES
   Use  GOVERNMENT EMPLOYEES

CIVIL WAR(UNITED STATES)
SN: 01-JAN-2002
   UF  AMERICAN CIVIL WAR
   BT  CONVENTIONAL WARFARE
   BT  MILITARY HISTORY

CIVILIAN MILITARY RELATIONS
   Use  COMMUNITY RELATIONS

CIVILIAN PERSONNEL
   BT  PERSONNEL
   NT  CONTRACTORS
   NT  GOVERNMENT EMPLOYEES
   NT  VETERANS(MILITARY PERSONNEL)

CIVILIAN POPULATION
   BT  POPULATION

CLADDING
   NT  REACTOR FUEL CLADDING
   RT  COATINGS
   RT  FINISHES
   RT  ROLL BONDING

CLADOCERA
   Use  CRUSTACEA

CLAMPING CIRCUITS
   Use  LIMITER CIRCUITS

CLAMPS
   BT  SMALL TOOLS
   NT  TOOL CHUCKS

CLAMS
   BT  PELECYPODA

CLARIFICATION
SN: 01-NOV-1980
   BT  SEPARATION
   RT  CLARIFIERS

CLARIFIERS
   BT  SEPARATORS
   RT  CLARIFICATION

CLASSIFICATION
   NT  DISCRIMINATE ANALYSIS
   NT  HIERARCHIES
   NT  SOIL CLASSIFICATION
   NT  TARGET CLASSIFICATION
   RT  RATINGS
   RT  TAXONOMY

CLASSIFIED MATERIALS
   BT  DOCUMENTS
   BT  INFORMATION ASSURANCE
   BT  INFORMATION SECURITY
   NT  CNWDI
   RT  SECURITY CLASSIFICATION GUIDES

CLATHRATE COMPOUNDS
   BT  COMPLEX COMPOUNDS

CLAY
   BT  COHESIVE SOILS
   BT  SEDIMENTARY ROCK
   NT  CLAY MINERALS
   RT  CLAYEY SOILS

CLAY MINERALS
   UF  BENTONITE
   UF  ILLITE
   BT  CLAY
   BT  MINERALS
   NT  FULLERS EARTH
   NT  KAOLINITE
   NT  MONTMORILLONITE
   NT  TALC

CLAYEY SOILS
SN: 01-OCT-1992 - SOILS CONSISTING OF OR CHARACTERIZED BY CLAY.
   BT  SOILS
   RT  CLAY

CLEAN ROOMS
   BT  CONTROLLED ATMOSPHERES
   BT  LABORATORIES

CLEANING
   NT  CHEMICAL CLEANING
   NT  DRY CLEANING
   NT  FLUSHING
   NT  LAUNDRY OPERATIONS
   NT  STEAM CLEANING
   NT  ULTRASONIC CLEANING
   NT  WATER WASHING
   RT  ANTIFOULING
   RT  BLEACHING AGENTS
   RT  BRUSHES
   RT  CLEANING COMPOUNDS
   RT  SCRUBBERS

CLEANING COMPOUNDS
   UF  CLEANING FLUIDS
   NT  DETERGENTS
   NT  DISHWASHING COMPOUNDS
   NT  PAINT REMOVERS
   NT  PICKLING COMPOSITIONS
   NT  SOAPS
   RT  BLEACHING AGENTS
   RT  CLEANING
   RT  SOLVENTS

CLEANING FLUIDS
   Use  CLEANING COMPOUNDS

CLEAR AIR TURBULENCE
   BT  ATMOSPHERIC MOTION
   BT  TURBULENCE

CLEAR WEATHER
   BT  WEATHER

CLEARANCES
   BT  TOLERANCES(MECHANICS)
   RT  ALIGNMENT

CLEAVAGE
   BT  SEPARATION

CLIENT SERVER SYSTEMS
SN: 01-OCT-1997
   BT  DISTRIBUTED COMPUTING
   RT  INTERNET BROWSERS

CLIFFS
   UF  BLUFFS(LANDFORMS)
   BT  TOPOGRAPHY

CLIMATE
   UF  MACROCLIMATE
   NT  MARINE CLIMATOLOGY
   NT  MICROCLIMATOLOGY
   RT  CLIMATOLOGY
   RT  WEATHER

CLIMATE CHANGE
SN: A significant and lasting change in the statistical distribution of weather patterns over periods ranging from decades to millions of years. It may be a change in average weather conditions or the distribution of events around that average (e.g., more or fewer extreme weather events). Climate change may be limited to a specific region or may occur across the whole Earth. (March 2011)
   NT  CLIMATOLOGY

CLIMATOLOGY
SN: Study of climate, scientifically defined as weather conditions averaged over a period of time (DEC 1984).
   BT  ATMOSPHERIC SCIENCES
   BT  CLIMATE CHANGE
   BT  METEOROLOGY
   NT  PALEOCLIMATOLOGY
   RT  CLIMATE
   RT  GLACIOLOGY

CLIMBING
   BT  FLIGHT
   NT  BOOST PHASE
   RT  ASCENT TRAJECTORIES

CLIMBING EQUIPMENT
SN: 01-APR-2008 - INCLUDES LADDERS, SCAFFOLDING, AND FREE-STANDING STAIRS.
   UF  LADDERS
   BT  PORTABLE EQUIPMENT
   NT  MOUNTAIN CLIMBING EQUIPMENT

CLINICAL LABORATORIES
   BT  MEDICAL LABORATORIES

CLINICAL MEDICINE
   BT  MEDICINE
   NT  ANTIHEMOPHILIA
   NT  ETIOLOGY
   NT  INFECTIOUS DISEASE TRANSMISSION
   NT  PREVENTIVE MEDICINE
   RT  DIAGNOSIS(MEDICINE)
   RT  MEDICAL EQUIPMENT

CLINICAL PSYCHOLOGY
SN: 01-DEC-1984 - THAT BRANCH OF PSYCHOLOGY WHICH SPECIALIZES IN THE EVALUATION AND TREATMENT OF MENTAL, BEHAVIORAL AND NEUROLOGICAL DISORDERS, AS WELL AS RESEARCH INTO PSYCHOLOGICAL ASPECTS OF SUCH DISORDERS.
   BT  PSYCHOLOGY
   NT  COUNSELING

CLINICAL TRIALS
SN: 01-APR-2001
   BT  MEDICAL RESEARCH

CLIPPER CIRCUITS
   BT  LIMITER CIRCUITS

CLOCK DELAY MECHANISMS
SN: SAFETY DEVICES THAT DELAY THE ARMING OF UNDERWATER MINES TO ENABLE THE PLANTING CRAFT TO WITHDRAW FROM THE MINEFIELD.
   BT  FUZE FUNCTIONING ELEMENTS

CLOCKS
   UF  STOP WATCHES
   UF  WATCHES
   UF  WRIST WATCHES
   BT  MEASURING INSTRUMENTS
   BT  TIMING DEVICES
   NT  ATOMIC CLOCKS
   NT  CHRONOMETERS
   RT  PENDULUMS
   RT  TIME

CLONES
SN: 01-DEC-1984 - ALL INDIVIDUALS, CONSIDERED COLLECTIVELY, PRODUCED ASEXUALLY OR BY PARTHENOGENESIS FROM A SINGLE INDIVIDUAL.
   RT  BIOTECHNOLOGY
   RT  REPLICAS

CLOSE AIR SUPPORT
   Use  TACTICAL AIR SUPPORT

CLOSE SUPPORT
   BT  COMBAT SUPPORT
   BT  GROUND SUPPORT
   NT  TACTICAL AIR SUPPORT
   RT  FIRE SUPPORT

CLOSED BOMB TESTS
   BT  TEST METHODS

CLOSED CIRCUIT REFUELING
   BT  REFUELING

CLOSED CIRCUIT TELEVISION
   BT  TELEVISION SYSTEMS

CLOSED CYCLE SYSTEMS
   BT  CYCLES

CLOSED ECOLOGICAL SYSTEMS
SN: CLOSED SYSTEMS THAT SUPPORT LIFE IN EXTREME ENVIRONMENTS BY PROVIDING FOOD AND OXYGEN AND DISPOSING OF WASTE PRODUCTS WITHOUT AID FROM OUTSIDE SOURCES.
   BT  ECOSYSTEMS
   BT  LIFE SUPPORT SYSTEMS
   RT  SPACE SIMULATION CHAMBERS

CLOSED ELECTRON DRIFT THRUSTERS
SN: 01-APR-2004
   BT  PLASMA ENGINES
   BT  THRUSTERS

CLOSED LOOP SYSTEMS
   RT  FEEDBACK
   RT  OPEN LOOP SYSTEMS

CLOSTRIDIOPEPTIDASE A
   BT  PEPTIDE HYDROLASES

CLOSTRIDIUM
   BT  BACILLACEAE
   NT  CLOSTRIDIUM BOTULINUM
   NT  CLOSTRIDIUM PERFRINGENS
   NT  CLOSTRIDIUM SPOROGENES
   NT  CLOSTRIDIUM TETANI
   NT  CLOSTRIDIUM WELCHII

CLOSTRIDIUM BOTULINUM
   UF  BACILLUS BOTULINUS
   BT  CLOSTRIDIUM
   RT  BOTULISM

CLOSTRIDIUM HEMOLYTICUM
   Use  BACILLACEAE

CLOSTRIDIUM HISTOLYTICUM
   Use  BACILLACEAE

CLOSTRIDIUM PERFRINGENS
   BT  CLOSTRIDIUM

CLOSTRIDIUM SPOROGENES
   BT  CLOSTRIDIUM

CLOSTRIDIUM TETANI
   UF  TETANUS BACILLUS
   BT  CLOSTRIDIUM
   RT  TETANUS

CLOSTRIDIUM WELCHII
   BT  CLOSTRIDIUM

CLOSURES
   NT  NOZZLE CLOSURES
   RT  OPENINGS

CLOTH
   Use  FABRICS

CLOTHING
   NT  FLIGHT CLOTHING
   NT  FOOTWEAR
   NT  HOODS
   NT  JACKETS
   NT  OVERCOATS
   NT  PROTECTIVE CLOTHING
   NT  SHIRTS
   NT  UNDERWEAR
   NT  UNIFORMS
   NT  VESTS
   RT  FABRICS

CLOUD CHAMBERS
   UF  FOG CABINETS
   BT  IONIZATION CHAMBERS

CLOUD COMPUTING
SN: A computing model for enabling ubiquitous, convenient, on-demand network access to a shared pool of configurable computing resources (e.g., networks, servers, storage, applications, and services) that can be rapidly provisioned and released with minimal management effort or service provider interaction. This cloud model promotes availability and is composed of five essential characteristics: on-demand self-service; broad network access; resource pooling; rapid elasticity; measured service. (March 2011)
   BT  COMPUTER NETWORKS

CLOUD COVER
SN: THE AMOUNT OF SKY COVERED BY CLOUDS.
   UF  OVERCAST
   BT  ATMOSPHERIC CONDENSATION
   BT  CLOUDS
   NT  CEILING

CLOUD HEIGHT INDICATORS
   UF  CEILOMETERS
   BT  METEOROLOGICAL INSTRUMENTS

CLOUD PHYSICS
   BT  ATMOSPHERIC PHYSICS
   RT  CLOUDS

CLOUD SEEDING
   BT  NUCLEATION
   BT  SEEDING
   BT  WEATHER MODIFICATION
   RT  ARTIFICIAL PRECIPITATION

CLOUDS
   BT  ATMOSPHERIC CONDENSATION
   NT  CIRRUS CLOUDS
   NT  CLOUD COVER
   NT  CUMULONIMBUS CLOUDS
   NT  CUMULUS CLOUDS
   NT  FOG
   NT  NIMBOSTRATUS CLOUDS
   NT  NOCTILUCENT CLOUDS
   NT  STRATUS CLOUDS
   RT  CLOUD PHYSICS

CLUSTER WARHEADS
   BT  WARHEADS
   RT  BOMBLETS
   RT  CLUSTER WEAPONS

CLUSTER WEAPONS
   BT  WEAPONS
   RT  CLUSTER WARHEADS

CLUSTERING
   RT  DISPERSING

CLUTCHES
   BT  VEHICLE CHASSIS COMPONENTS

CLUTTER
   BT  ELECTROMAGNETIC RADIATION
   NT  RADAR CLUTTER
   NT  SEA CLUTTER
   RT  JAMMING

CNS DEPRESSANTS
   UF  CENTRAL NERVOUS SYSTEM DEPRESSANTS
   BT  DRUGS

CNS STIMULANTS
   UF  ANALEPTICS
   UF  CENTRAL NERVOUS SYSTEM STIMULANTS
   UF  STIMULANTS(CNS)
   BT  DRUGS
   NT  PENTYLENETETRAZOL
   RT  THEBAINE

CNWDI
SN: 01-JUN-1989 - ACRONYM FOR CRITICAL NUCLEAR WEAPON DESIGN INFORMATION.
   BT  CLASSIFIED MATERIALS

COAGULASES
   Use  PEPTIDE HYDROLASES

COAGULATED PROTEINS
   Use  PROTEINS(DERIVED)

COAGULATION
   NT  BLOOD COAGULATION
   NT  FLOCCULATION
   RT  GELATION
   RT  PHOTOCOAGULATORS

COAL
   BT  FOSSIL FUELS
   BT  ORES(NONMETALLIC)
   BT  ORGANIC MATERIALS
   BT  SEDIMENTARY ROCK
   NT  ANTHRACITE
   NT  BITUMINOUS COAL
   NT  CHAR OIL
   RT  CARBON
   RT  COAL GAS
   RT  COAL MINES
   RT  COAL TAR
   RT  COKE

COAL GAS
   BT  FUELS
   BT  GASES
   RT  COAL

COAL MINES
   BT  MINES(EXCAVATIONS)
   RT  COAL

COAL TAR
   BT  TAR
   RT  COAL

COALESCENCE
   RT  AGGLOMERATES

COALITION FORCES
   Use  JOINT MILITARY ACTIVITIES

COANDA EFFECT
   BT  FLUID FLOW

COAST GUARD
   BT  MILITARY FORCES(UNITED STATES)

COAST GUARD ACADEMY
   Use  UNITED STATES COAST GUARD ACADEMY

COAST GUARD AIRCRAFT
SN: 01-SEP-1981 - AIRCRAFT USED/OPERATED BY THE U.S. COASTGUARD.
   BT  aircraft

COAST GUARD EQUIPMENT
SN: 01-SEP-1981 - EQUIPMENT USED IN SUPPORT OF THE U.S. COAST GUARD MISSION.
   BT  NAVAL EQUIPMENT

COAST GUARD OPERATIONS
SN: 01-MAY-1983 - OPERATIONS CONCERNED WITH GUARDING THE COAST LINE AND ENSURING THE ORDER, SAFETY, AND EFFECTIVE OPERATION OF TRAFFIC ON THE COASTAL WATERS.
   BT  MILITARY OPERATIONS

COAST GUARD PERSONNEL
SN: 01-JUN-1989
   BT  MILITARY PERSONNEL

COAST GUARD RESEARCH
   BT  MILITARY RESEARCH

COAST GUARD SHIPS
   BT  SHIPS
   NT  CUTTERS(VESSELS)

COASTAL ENGINEERING
SN: 01-JUN-1989 - A BRANCH OF CIVIL ENGINEERING PERTAININGTO THE STUDY OF THE ACTION OF THE SEAS ON SHORELINES AND TO THE DESIGN OF STRUCTURES TO PROTECT AGAINST THIS ACTION.
   BT  CIVIL ENGINEERING

COASTAL REGIONS
   BT  LANDFORMS
   BT  REGIONS
   NT  ESTUARIES
   NT  PENINSULAS
   NT  SHORES
   RT  FJORDS

COATINGS
   NT  ACOUSTIC COATINGS
   NT  ANODIC COATINGS
   NT  ANTIREFLECTION COATINGS
   NT  ARC SPRAYING
   NT  CERAMIC COATINGS
   NT  DIFFUSION COATING
   NT  DIFFUSION COATINGS
   NT  DIP COATING
   NT  ELECTROPHORETIC COATINGS
   NT  ENAMELS
   NT  EPOXY COATINGS
   NT  METAL COATINGS
   NT  OPTICAL COATINGS
   NT  ORGANIC COATINGS
   NT  PAINTS
   NT  PHOSPHATE COATINGS
   NT  PHOTORESIST COATINGS
   NT  PLATING
   NT  PROTECTIVE COATINGS
   NT  SILICON COATINGS
   NT  SLURRY COATING
   NT  SPIN COATINGS
   NT  STRIP COATINGS
   RT  CLADDING
   RT  DEPOSITION
   RT  SUBSTRATES
   RT  WAXES

COAXIAL CABLES
   BT  ELECTRIC CABLES
   NT  LIQUID FILLED COAXIAL CABLES
   RT  WAVEGUIDES

COAXIAL CONFIGURATIONS
   BT  CONFIGURATIONS

COAXIAL FILTERS
   BT  ELECTRIC FILTERS

COBALT
   BT  TRANSITION METALS
   RT  COBALT ALLOYS
   RT  COBALT COMPOUNDS

COBALT ALLOYS
   BT  ALLOYS
   RT  COBALT

COBALT COMPOUNDS
   BT  GROUP VIII COMPOUNDS
   NT  COBALT OXIDES
   RT  COBALT

COBALT OXIDES
   BT  COBALT COMPOUNDS
   BT  OXIDES

COBOL
   Use  HIGH LEVEL LANGUAGES

COBRAS
   BT  SNAKES

COCAINE
   BT  TROPANE ALKALOIDS

COCCIDIOIDES
   BT  ASCOMYCETES
   NT  COCCIDIOIDES IMMITIS
   RT  FUNGUS DISEASES

COCCIDIOIDES IMMITIS
   BT  COCCIDIOIDES

COCCIDIOIDIN
   BT  ANTIGENS

COCCIDIOSIS
   BT  PARASITIC DISEASES

COCCIDIUM
   BT  EUCOCCIDIA

COCHLEA
   BT  EAR

COCHLEAR NERVE
   BT  NERVES
   RT  AUDITORY NERVE

COCKPITS
   BT  FUSELAGES
   NT  JETTISONABLE COCKPITS
   RT  AIRCRAFT CABINS

COCKROACHES
   Use  BLATTIDAE

COCKROFT WALTON ACCELERATORS
   BT  ELECTROSTATIC ACCELERATORS

COD
   Use  FISHES

COD LIVER OIL
   Use  FISH OILS

CODE DIVISION MULTIPLE ACCESS
SN: JAN 2000.
   BT  MULTIPLE ACCESS

CODEINE
   Use  NARCOTICS

CODEINONE
   Use  NARCOTICS

CODERS
   UF  ENCODERS
   BT  DATA PROCESSING EQUIPMENT
   RT  CODING
   RT  DECODERS

CODING
SN: CONVERTING INFORMATION INTO SYMBOLS TO ENABLE MECHANICAL TRANSMISSION. FOR THE PREPARATION OF MESSAGES IN A FORM TO PREVENT INTERPRETATION BY THOSE NOT HAVING KNOWLEDGE OF THE FORM, SEE CRYPTOGRAPHY.
   UF  ENCODING
   BT  CYBERNETICS
   NT  BAR CODES
   NT  COLOR CODING
   NT  DECODING
   NT  ERROR CORRECTION CODES
   NT  ERROR DETECTION CODES
   NT  HYDRODYNAMIC CODES
   NT  MACHINE CODING
   NT  MORSE CODE
   NT  NEUROCHEMICAL CODING
   NT  OCTAL CODING
   NT  SCHALKWIJK CODING
   RT  ABBREVIATIONS
   RT  CODERS
   RT  CRYPTOGRAPHY
   RT  SYMBOLS

CODING(COMPUTERS)
   Use  COMPUTER PROGRAMMING

COEFFICIENT DETERMINATION
   Use  DIFFERENTIAL EQUATIONS

COEFFICIENT OF RIGIDITY
   Use  SHEAR MODULUS

COEFFICIENTS
   NT  ABSORPTION COEFFICIENTS
   NT  DIFFUSION COEFFICIENT
   NT  HEAT TRANSFER COEFFICIENTS
   NT  POWER COEFFICIENT OF REACTIVITY
   NT  TEMPERATURE COEFFICIENTS
   RT  CONSTANTS

COELENTERATA
   UF  JELLYFISH
   BT  INVERTEBRATES
   NT  CORAL

COELOSTATS
   BT  MIRRORS

COENZYMES
   BT  ENZYMES
   NT  CYTOCHROME OXIDASE
   NT  GLUTATHIONE

COERCIVE FORCE
   BT  MAGNETIC PROPERTIES

COFFEE
   BT  BEVERAGES
   RT  CAFFEINE

COGNITION
SN: 01-MAY-1983 - THE CONSCIOUS FACULTY OR PROCESS OF KNOWING, OR BECOMING OR BEING AWARE OF THOUGHTS OR PERCEPTIONS, INCLUDING UNDERSTANDING AND REASONING.
   NT  AWARENESS
   NT  CONSCIOUSNESS

COGNITIVE IMPAIRMENT
SN: 01-JAN-2008
   BT  BRAIN FUNCTION IMPAIRMENT
   RT  LEARNING DISABILITIES

COGNITIVE SCIENCE
SN: An interdisciplinary scientific study of minds as information processors. It includes research on how information is processed (in faculties such as perception, language, reasoning, and emotion), represented, and transformed in a (human or other animal) nervous system or machine (e.g., computer). Cognitive science consists of multiple research disciplines and spans many levels of analysis, from low-level learning and decision mechanisms to high-level logic and planning; from neural circuitry to modular brain organization. (March 2011)
   BT  ARTIFICIAL INTELLIGENCE

COHERENCE
   NT  INCOHERENCE

COHERENT ELECTROMAGNETIC RADIATION
   BT  COHERENT RADIATION
   BT  ELECTROMAGNETIC RADIATION
   NT  COHERENT OPTICAL RADIATION
   NT  OPTICAL PUMPING

COHERENT OPTICAL RADIATION
   BT  COHERENT ELECTROMAGNETIC RADIATION

COHERENT RADAR
   BT  RADAR

COHERENT RADIATION
   BT  RADIATION
   NT  COHERENT ELECTROMAGNETIC RADIATION
   RT  BEAMS(RADIATION)

COHERENT SCATTERING
SN: SCATTERING OF PARTICLES OR PHOTONS IN WHICH THERE ARE DEFINITE PHASE RELATIONSHIPS BETWEEN THE INCOMING AND THE SCATTERED WAVES.
   BT  NUCLEAR SCATTERING

COHESION
   BT  MECHANICAL PROPERTIES
   RT  ADHESION
   RT  AGGLUTINATION
   RT  BONDING

COHESIONLESS SOILS
SN: 01-OCT-1992 - SOILS HAVING LOW SHEAR STRENGTH WHEN DRYAND LOW COHESION WHEN WET.
   BT  SOILS

COHESIVE SOILS
SN: 01-JUN-1989 - STICKY SOILS, SUCH AS CLAY OR SILT; THEIR SHEAR STRENGTH EQUALS ABOUT HALF THEIRUNCONFINED COMPRESSIVE STRENGTH.
   BT  SOILS
   NT  CLAY

COHOMOLOGY
   Use  ALGEBRAIC TOPOLOGY

COIL GUNS
   Use  ELECTROMAGNETIC GUNS

COILS
SN: COMPACT WINDINGS OF CONDUCTORS TO FORM INDUCTORS. FOR COILS PRODUCING MAGNETIC FIELDS FOR THE CONVERSION OF ELECTRICAL INTO MECHANICAL ENERGY, SEE SOLENOIDS.
   NT  ELECTRIC COILS

COINCIDENCE COUNTING
   BT  COUNTING METHODS

COINCIDENCE RANGE FINDING
   BT  RANGE FINDING

COINS
   Use  MONEY

COKE
SN: 01-APR-1999
   BT  CARBON
   RT  COAL

COLCHICINE
   BT  ALKALOIDS

COLD CATHODE TUBES
   BT  ELECTRON TUBES
   NT  NEON TUBES
   NT  PHOTOTUBES

COLD DRAWING
   BT  DRAWING(FORMING)

COLD FLOW
   BT  FLOW
   RT  CREEP

COLD FOG
   BT  FOG

COLD FORMING
   Use  COLD WORKING

COLD FRONTS
   BT  FRONTS(METEOROLOGY)

COLD GASES
   BT  GASES

COLD REGIONS
   BT  GEOGRAPHIC AREAS
   BT  REGIONS
   NT  ANTARCTIC REGIONS
   NT  ARCTIC REGIONS
   NT  MARGINAL ICE ZONES
   NT  POLAR REGIONS
   NT  SUBARCTIC REGIONS
   RT  COLD WEATHER

COLD ROLLED PROCESS
   BT  ROLLING(METALLURGY)

COLD STORAGE
   BT  STORAGE
   RT  REFRIGERATION SYSTEMS

COLD TOLERANCE
SN: 01-SEP-1990 - THE PHYSIOLOGICAL CAPACITY TO ENDURE COLD TEMPERATURES/ENVIRONMENTS.
   BT  TOLERANCES(PHYSIOLOGY)

COLD VIRUSES
   Use  ADENOVIRUSES

COLD WAR
   BT  EAST WEST RELATIONS

COLD WATER
SN: 01-SEP-1990
   BT  WATER

COLD WEATHER
   BT  WEATHER
   RT  COLD REGIONS
   RT  WINTER

COLD WEATHER OPERATIONS
   BT  ENVIRONMENTAL TESTS

COLD WEATHER TESTS
   BT  ENVIRONMENTAL TESTS

COLD WELDING
   BT  PRESSURE WELDING

COLD WORKING
SN: DEFORMING METALS PLASTICALLY AT SUCH A TEMPERATURE AND RATE THAT STRAIN HARDENING OCCURS.
   UF  COLD FORMING
   BT  MECHANICAL WORKING
   NT  METAL SPINNING
   NT  STRETCH FORMING
   NT  SWAGING
   RT  SHOT PEENING

COLDS
   Use  ADENOVIRUSES

COLEOPTERA
   UF  BEETLES
   BT  INSECTS

COLIFORM BACTERIA
   BT  ENTEROBACTERIACEAE
   NT  AEROBACTER AEROGENES
   NT  ESCHERICHIA COLI

COLIPHAGE
   BT  BACTERIOPHAGES

COLITIS
   BT  GASTROINTESTINAL DISEASES
   RT  COLON

COLLABORATIVE TECHNIQUES
SN: 01-JUL-1998 - TECHNIQUES AND TECHNOLOGIES WHOSE GOAL IS TO ENABLE PEOPLE, OR GROUPS OF PEOPLE,TO WORK MORE EFFICIENTLY AS A TEAM.
   BT  MANAGEMENT ENGINEERING
   NT  COLLABORATIVE VIRTUAL PROTOTYPING

COLLABORATIVE VIRTUAL PROTOTYPING
SN: 01-JUL-1998 - APPLICATION OF ADVANCED INFORMATION TECHNOLOGY IN COMPLETE LIFE CYCLE DEVELOPMENT OF A SYSTEM IN A GEOGRAPHICALLY DISTRIBUTED ELECTRONIC ENVIRONMENT.
   BT  COLLABORATIVE TECHNIQUES
   BT  DISTRIBUTED INTERACTIVE SIMULATION

COLLAGEN
   UF  CHONDRIN
   UF  OSSEIN
   BT  ALBUMINOIDS
   NT  TROPOCOLLAGEN
   RT  GELATINS

COLLAGENASE
   BT  ENZYMES

COLLAPSE
   BT  FAILURE(MECHANICS)

COLLAPSIBLE STRUCTURES
   BT  STRUCTURES

COLLARS
   BT  FITTINGS

COLLATERAL DAMAGE
SN: JAN 2000.
   BT  WEAPONS EFFECTS

COLLECTING METHODS
   BT  METHODOLOGY
   NT  SAMPLING

COLLECTION
   UF  GATHERING
   NT  WASTE COLLECTION
   RT  ACCUMULATION
   RT  STOCKPILES

COLLECTIVE NBC DEFENSE
   Use  COLLECTIVE PROTECTION

COLLECTIVE PROTECTION
SN: 01-JUN-1989 - PROTECTION PROVIDED TO A GROUP OF INDIVIDUALS IN A NUCLEAR, BIOLOGICAL AND/OR CHEMICAL (NBC) ENVIRONMENT WHICH PERMITS RELAXATION OF INDIVIDUAL NBC PROTECTION.
   UF  COLLECTIVE NBC DEFENSE
   UF  NBC COLLECTIVE PROTECTION
   UF  NUCLEAR BIOLOGICAL CHEMICAL COLLECTIVE DEFENSE
   BT  PROTECTION

COLLECTORS
   Use  ACCUMULATORS

COLLEGES
   Use  UNIVERSITIES

COLLIDER ACCELERATORS
SN: 01-APR-1999
   BT  PARTICLE ACCELERATORS

COLLIMATORS
SN: DEVICE FOR PRODUCING BEAMS OF LIGHT, MOLECULES OR ATOMS.
   BT  OPTICAL EQUIPMENT

COLLISION AVOIDANCE
   BT  AVOIDANCE
   BT  NAVIGATION
   RT  SAFETY

COLLISION BROADENING
   BT  SPECTRAL LINES

COLLISIONS
   BT  INTERACTIONS
   NT  BIRD STRIKES
   NT  PARTICLE COLLISIONS
   RT  ACCIDENTS
   RT  AVOIDANCE
   RT  INTERCEPT TRAJECTORIES

COLLOIDAL PROPELLANTS
   Use  SMOKELESS PROPELLANTS

COLLOIDS
SN: A substance microscopically dispersed evenly throughout another substance. A colloidal system consists of two separate phases: a dispersed phase (or internal phase) and a continuous phase (or dispersion medium). A colloidal system may be solid, liquid, or gaseous.
   BT  DISPERSIONS
   NT  AEROSOLS
   NT  FOAM
   NT  MICELLES

COLOMBIA
   BT  SOUTH AMERICA
   NT  GUAJIRA PENINSULA

COLON
   UF  SIGMOID COLON
   BT  INTESTINES
   RT  COLITIS
   RT  COLON CANCER

COLON CANCER
SN: Cancer of the colon or rectum. The colon and the rectum are part of the large intestine, which is part of the digestive system. Colorectal cancer occurs when tumors form in the lining of the large intestine, also called the large bowel. (June 1997)
   UF  bowel cancer
   UF  colorectal cancer
   UF  rectal cancer
   BT  CANCER
   RT  COLON

COLONIES(BIOLOGY)
   BT  HABITATS

COLOR CENTERS
   UF  F CENTERS
   BT  POINT DEFECTS

COLOR CODING
SN: 01-JUN-1989 - ANY SYSTEM OF COLORS USED FOR PURPOSES OF IDENTIFICATION.
   BT  CODING

COLOR DISPLAYS
SN: 01-JUN-1989
   BT  DISPLAY SYSTEMS
   NT  COLOR TELEVISION

COLOR FILM
   BT  PHOTOGRAPHIC FILM
   RT  COLOR PHOTOGRAPHY

COLOR PHOTOGRAPHY
   BT  PHOTOGRAPHY
   RT  COLOR FILM

COLOR SEPARATION
   BT  SEPARATION

COLOR TELEVISION
   BT  COLOR DISPLAYS
   BT  TELEVISION SYSTEMS
   NT  COLOR TELEVISION TUBES

COLOR TELEVISION TUBES
   BT  CATHODE RAY TUBES
   BT  COLOR TELEVISION
   RT  SHADOW MASK TUBES

COLOR TEMPERATURE
   BT  TEMPERATURE

COLOR VISION
   BT  VISION

COLORADO
   BT  UNITED STATES

COLORADO RIVER
   BT  RIVERS

COLORADO TICK VIRUS
   BT  ARBOVIRUSES

COLORANTS
   NT  DYES
   NT  INKS
   NT  PIGMENTS
   RT  COLORING

colorectal cancer
   Use  COLON CANCER

COLORED FLARES
   BT  FLARES

COLORED SMOKES
   BT  SMOKE

COLORIMETERS
SN: 01-NOV-1980 - A DEVICE TO MEASURE THE INTENSITY AND SHADE OF COLORED SOLUTIONS OR TO COMPARE STANDARD COLOR SOLUTIONS IN QUANTITATIVE ANALYSIS.
   BT  MEASURING INSTRUMENTS
   BT  OPTICAL EQUIPMENT
   RT  COLORIMETRIC ANALYSIS
   RT  COLORIMETRY

COLORIMETRIC ANALYSIS
SN: CHEMICAL ANALYSIS THROUGH MEASUREMENT, CHANGE OR DETECTION OF COLOR. FOR OTHER APPLICATIONS OF COLOR MEASUREMENT, SEE COLORIMETRY.
   BT  CHEMICAL ANALYSIS
   RT  COLORIMETERS
   RT  COLORIMETRY

COLORIMETRY
   BT  LABORATORY PROCEDURES
   RT  COLORIMETERS
   RT  COLORIMETRIC ANALYSIS

COLORING
   NT  ELECTROCOLORATION
   RT  COLORANTS
   RT  COLORS

COLORS
   BT  OPTICAL PROPERTIES
   NT  BLACK(COLOR)
   NT  BLUE(COLOR)
   NT  GRAY(COLOR)
   NT  GREEN(COLOR)
   NT  ORANGE(COLOR)
   NT  RED(COLOR)
   NT  WHITE(COLOR)
   NT  YELLOW(COLOR)
   RT  COLORING

COLUMBIA RIVER
   BT  RIVERS

COLUMBIUM
   Use  NIOBIUM

COLUMN CHROMATOGRAPHY
   BT  CHROMATOGRAPHY

COLUMNS(SUPPORTS)
   BT  STRUCTURAL COMPONENTS
   BT  SUPPORTS

COMA(PHYSIOLOGY)
SN: 01-NOV-1980 - A STATE IN WHICH THE PATIENT IS INCAPABLE OF SENSING OR RESPONDING, EITHER TO EXTERNAL STIMULI OR TO INNER NEEDS.
   BT  INCAPACITATION

COMB FILTERS
SN: 01-JUL-1999
   BT  ELECTRIC FILTERS

COMBAT
   Use  WARFARE

COMBAT AREAS
   NT  BATTLEFIELDS
   RT  WARFARE

COMBAT EFFECTIVENESS
   BT  BATTLES

COMBAT FATIGUE
   Use  POST TRAUMATIC STRESS DISORDER

COMBAT FILMS
   BT  MOTION PICTURES

COMBAT FORCES
SN: 01-MAY-1983 - MILITARY FORCES TRAINED, EQUIPPED AND EMPLOYED FOR ACTUAL FIGHTING.
   BT  MILITARY PERSONNEL

COMBAT INFORMATION CENTERS
   BT  INFORMATION CENTERS
   RT  COMMUNICATIONS CENTRALS

COMBAT MODELS
   Use  COMBAT SIMULATION

COMBAT NOISE
   BT  NOISE(SOUND)

COMBAT PATROLS
   BT  MILITARY OPERATIONS

COMBAT READINESS
   BT  PREPARATION
   RT  WAR POTENTIAL

COMBAT SIMULATION
SN: 01-JAN-1999
   UF  COMBAT MODELS
   BT  COMPUTERIZED SIMULATION

COMBAT SUPPORT
   BT  TACTICAL WARFARE
   NT  CLOSE SUPPORT
   NT  FIRE SUPPORT

COMBAT SURVEILLANCE
   BT  SURVEILLANCE
   RT  MILITARY INTELLIGENCE
   RT  SURVEILLANCE DRONES
   RT  TACTICAL INTELLIGENCE

COMBAT VEHICLES
   BT  MILITARY VEHICLES
   NT  ARMORED VEHICLES
   NT  SELF PROPELLED GUNS
   NT  WEAPONS CARRIERS

COMBATANT SHIPS
   Use  NAVAL VESSELS(COMBATANT)

COMBINATORIAL ANALYSIS
   UF  DESIGNS(MATHEMATICS)
   UF  ENUMERATION THEORY
   UF  FACTORIAL EXPERIMENTS
   UF  LATIN SQUARES
   UF  MACMAHON'S THEORY
   UF  ROTABLE DESIGNS
   BT  MATHEMATICAL ANALYSIS
   NT  FACTORIAL DESIGN

COMBUSTIBILITY
   Use  FLAMMABILITY

COMBUSTIBLE CARTRIDGE CASES
   BT  CARTRIDGE CASES

COMBUSTION
   UF  BURNING
   UF  BURNING PROCESS
   BT  CHEMICAL REACTIONS
   NT  AFTERBURNING
   NT  ANTIKNOCK
   NT  BURNING RATE
   NT  BURNTHROUGH
   NT  CHARRING
   NT  COOK OFF
   NT  DEFLAGRATION
   NT  EROSIVE BURNING
   NT  EXTERNAL BURNING
   NT  FLAMES
   NT  HEAT OF COMBUSTION
   NT  IGNITION
   NT  INCENDIARY EFFECTS
   NT  KNOCKING
   NT  PROPELLANT BURN OUT
   NT  SCREAMING COMBUSTION
   NT  SPONTANEOUS COMBUSTION
   NT  SUBSONIC COMBUSTION
   NT  SUPERSONIC COMBUSTION
   RT  COMBUSTION PRODUCTS
   RT  COMBUSTORS
   RT  FIRES
   RT  PYROLYSIS

COMBUSTION CHAMBER GASES
SN: THE GASES IN A COMBUSTION CHAMBER BEFOREOR AFTER IGNITION. FOR STUDIES OF GASES EJECTED FROM THE COMBUSTION CHAMBER, SEE EXHAUST GASES.
   BT  GASES

COMBUSTION CHAMBER LINERS
   BT  ENGINE COMPONENTS
   BT  LININGS

COMBUSTION CHAMBERS
   BT  CHAMBERS
   NT  COMBUSTORS
   NT  FLAME HOLDERS
   NT  THRUST CHAMBERS

COMBUSTION DEPOSITS
   BT  DEPOSITS
   NT  FLY ASH

COMBUSTION HEAT
   Use  HEAT OF COMBUSTION

COMBUSTION PRODUCTS
   NT  ASHES
   NT  EXHAUST GASES
   NT  SOOT
   RT  AIR POLLUTION
   RT  COMBUSTION

COMBUSTION RESISTANT MATERIALS
   Use  FIRE RESISTANT MATERIALS

COMBUSTION STABILITY
   BT  CHEMICAL STABILITY
   NT  FLAMEOUT

COMBUSTORS
   BT  COMBUSTION CHAMBERS
   RT  COMBUSTION

COMETS
   BT  SOLAR SYSTEM

COMINT
   Use  COMMUNICATIONS INTELLIGENCE

COMMA BACILLUS
   Use  VIBRIO

COMMAND AND CONTROL SYSTEMS
   BT  CONTROL SYSTEMS
   NT  COMMAND CONTROL COMMUNICATIONS
   NT  CONTROL CENTERS
   RT  REMOTE CONTROL

COMMAND CONTROL COMMUNICATIONS
SN: 01-SEP-1990 - TO BE USED FOR C3 (COMMAND, CONTROL, COMMUNICATIONS) AND C3I (COMMAND, CONTROL, COMMUNICATIONS AND INTELLIGENCE) INFORMATION ONLY.
   BT  COMMAND AND CONTROL SYSTEMS
   BT  COMMUNICATION AND RADIO SYSTEMS
   RT  NETWORK CENTRIC WARFARE

COMMAND GUIDANCE
SN: CONTROL OR DIRECTION BY AN EXTERNAL SOURCE. AS OF AN AIRCRAFT OR MISSILE BY ELECTRONIC SIGNALS.
   BT  GUIDANCE
   NT  WIRE GUIDANCE

COMMERCE
   UF  BUSINESS
   UF  TRADE
   NT  COMMODITIES
   NT  ELECTRONIC COMMERCE
   NT  INTERNATIONAL TRADE
   NT  RETAIL
   RT  ECONOMIC DEVELOPMENT
   RT  MARKETING

COMMERCIAL AIRCRAFT
   UF  AIRLINERS
   BT  aircraft
   RT  AIR TRANSPORTATION
   RT  PASSENGER AIRCRAFT

COMMERCIAL AVIATION
   BT  CIVIL AVIATION

COMMERCIAL COMMUNICATIONS
   BT  COMMUNICATION AND RADIO SYSTEMS

COMMERCIAL EQUIPMENT
   NT  OFF THE SHELF EQUIPMENT

COMMERCIAL FISHING
   BT  INDUSTRIES

COMMERCIAL LAW
SN: 01-ARP-1998
   BT  LEGISLATION

COMMINUTION
   NT  CRUSHING
   NT  GRINDING
   NT  SHREDDING
   RT  FRAGMENTATION

COMMODITIES
   BT  COMMERCE
   BT  SUPPLIES

COMMONALITY
SN: 01-SEP-1990 - HAVING SIMILAR CHARACTERISTICS OR SIMILAR OPERATING AND MAINTENANCE REQUIREMENTS.
   RT  INTEROPERABILITY
   RT  SPECIFICATIONS

COMMONWEALTH OF INDEPENDENT STATES
   Use  CIS

COMMUNICABLE DISEASES
SN: NONSPECIFIC DISEASES, OR DISEASES FOR WHICH THE CAUSATIVE ORGANISM IS NOT KNOWN.FOR SPECIFIC COMMUNICABLE DISEASES USEDISEASES AND THE DESCRIPTOR REPRESENTING THE CAUSATIVE ORGANISM.
   BT  INFECTIOUS DISEASES
   NT  ZOONOSES
   RT  QUARANTINE

COMMUNICATION AND RADIO SYSTEMS
   UF  RADIO COMMUNICATION SYSTEMS
   NT  ACOUSTIC COMMUNICATIONS
   NT  COMMAND CONTROL COMMUNICATIONS
   NT  COMMERCIAL COMMUNICATIONS
   NT  COMMUNICATIONS TRAFFIC
   NT  COMPUTER COMMUNICATIONS
   NT  CONFERENCING(COMMUNICATIONS)
   NT  FACSIMILE COMMUNICATIONS
   NT  FIELD WIRE COMMUNICATIONS
   NT  INTERCOMMUNICATION SYSTEMS
   NT  MESSAGE PROCESSING
   NT  PAGING
   NT  PUBLIC ADDRESS SYSTEMS
   NT  RADIO BROADCASTING
   NT  RADIO STATIONS
   NT  SINGLE SIDEBAND COMMUNICATIONS
   NT  SPACE DIVERSITY COMMUNICATIONS
   NT  STRATEGIC COMMUNICATIONS
   NT  TACTICAL COMMUNICATIONS
   NT  TELECOMMUNICATIONS
   NT  WEATHER COMMUNICATIONS

COMMUNICATION BUOYS
   BT  BUOYS

COMMUNICATION EQUIPMENT
   NT  FACSIMILE EQUIPMENT
   NT  FREQUENCY SHIFT KEYERS
   NT  LOUDSPEAKERS
   NT  MICROPHONES
   NT  PHASE SHIFT KEYERS
   NT  RADIO EQUIPMENT
   NT  TELECOMMUNICATION CIRCUITS
   NT  TELEGRAPH EQUIPMENT
   NT  TELEPHONE EQUIPMENT
   NT  TELEVISION EQUIPMENT
   NT  TRUNKS(COMMUNICATIONS)
   NT  VOCODERS

COMMUNICATION SATELLITE TERMINALS
   BT  COMMUNICATION TERMINALS

COMMUNICATION SATELLITES
   BT  ARTIFICIAL SATELLITES
   BT  SPACE COMMUNICATIONS

COMMUNICATION SWITCHING CENTERS
   BT  TELECOMMUNICATIONS
   NT  COMMUNICATIONS CENTRALS

COMMUNICATION TERMINALS
   BT  TERMINALS
   NT  COMMUNICATION SATELLITE TERMINALS
   NT  COMMUNICATIONS CENTRALS
   RT  REMOTE TERMINALS

COMMUNICATION THEORY
   Use  INFORMATION THEORY

COMMUNICATIONS CENTRALS
   BT  COMMUNICATION SWITCHING CENTERS
   BT  COMMUNICATION TERMINALS
   RT  COMBAT INFORMATION CENTERS

COMMUNICATIONS COUNTERMEASURES
SN: 01-SEP-1981 - ANY ELECTRONIC COUNTERMEASURES AGAINST COMMUNICATIONS.
   BT  ELECTRONIC COUNTERMEASURES

COMMUNICATIONS INTELLIGENCE
SN: TECHNICAL AND INTELLIGENCE INFORMATION DERIVED FROM FOREIGN COMMUNICATIONS BY OTHER THAN THE INTENDED RECIPIENTS.
   UF  COMINT
   BT  MILITARY INTELLIGENCE

COMMUNICATIONS NETWORKS
   BT  NETWORKS
   NT  AUTOMATIC VOICE NETWORK
   NT  GLOBAL INFORMATION GRID
   NT  WIRELESS COMMUNICATIONS
   RT  DATA LINKS

COMMUNICATIONS PROTOCOLS
SN: 01-APR-1999
   BT  COMPUTER COMMUNICATIONS
   BT  COMPUTER LOGIC

COMMUNICATIONS TRAFFIC
   BT  COMMUNICATION AND RADIO SYSTEMS
   NT  DOWNLINKS
   NT  RADIO LINKS
   NT  UPLINKS

COMMUNISM
   BT  ECONOMIC SYSTEMS
   BT  IDEOLOGY
   RT  COMMUNIST COUNTRIES
   RT  COMMUNISTS

COMMUNIST COUNTRIES
   BT  GEOGRAPHIC AREAS
   NT  CHINA
   NT  CUBA
   NT  NORTH KOREA
   NT  NORTH VIETNAM
   NT  USSR
   RT  COMMUNISM
   RT  COMMUNISTS

COMMUNISTS
   RT  COMMUNISM
   RT  COMMUNIST COUNTRIES

COMMUNITIES
   BT  URBAN AREAS
   NT  INHABITANTS
   NT  MUNICIPALITIES
   RT  COMMUNITY RELATIONS

COMMUNITY RELATIONS
   UF  CIVILIAN MILITARY RELATIONS
   BT  PUBLIC RELATIONS
   RT  COMMUNITIES

COMMUTATORS
   NT  ELECTRONIC COMMUTATORS
   RT  ARMATURES

COMPACT DISKS
SN: 01-OCT-1994
   BT  OPTICAL STORAGE
   NT  REWRITEABLE OPTICAL DISKS

COMPACTING
   NT  SOIL COMPACTION
   RT  COMPACTORS
   RT  POWDER METALLURGY

COMPACTORS
   BT  WASTE MANAGEMENT
   RT  COMPACTING

COMPANY LEVEL ORGANIZATIONS
   BT  BATTALION LEVEL ORGANIZATIONS
   NT  PLATOON LEVEL ORGANIZATIONS

COMPARATORS
   BT  MEASURING INSTRUMENTS
   NT  NEPHELOMETERS
   RT  COMPARISON

COMPARISON
   RT  COMPARATORS

COMPARTMENTS
   NT  AIR LOCKS
   RT  CELLS

COMPASSES
   BT  NAVIGATIONAL AIDS
   NT  GYRO COMPASSES
   NT  PELORUSES
   NT  RADIO COMPASSES

COMPATIBILITY
   NT  ACOUSTIC COMPATIBILITY
   NT  ELECTROMAGNETIC COMPATIBILITY
   RT  ACCEPTABILITY

COMPENSATION
   RT  BALANCE

COMPENSATORS
   RT  ELECTRIC FILTERS

COMPETITIVE ANTAGONISTS
   Use  ANTIMETABOLITES

COMPILERS
SN: PROGRAM-MAKING ROUTINES FOR DIGITAL COMPUTERS WHICH ENABLE THE COMPUTER TO CONSTRUCT PROGRAMS BY USING OTHER PROGRAMS STORED IN ITS LIBRARY OF ROUTINES.
   BT  COMPUTER PROGRAMS
   RT  SUBROUTINES

COMPLEMENT(BIOLOGY)
   BT  BLOOD SERUM

COMPLEMENT FIXATION TESTS
   Use  SERODIAGNOSIS

COMPLEMENTARY METAL OXIDE SEMICONDUCTORS
   BT  METAL OXIDE SEMICONDUCTORS

COMPLEX COMPOUNDS
   BT  CHEMICAL COMPOUNDS
   NT  CHELATE COMPOUNDS
   NT  CLATHRATE COMPOUNDS
   NT  METAL COMPLEXES

COMPLEX IONS
   BT  IONS

COMPLEX NUMBERS
   BT  NUMBERS

COMPLEX VARIABLES
   UF  BERNSTEIN'S THEOREM
   UF  BIEBERBACH CONJECTURE
   UF  CARATHEODORY'S THEOREM
   UF  ELLIPTIC MAPPING
   UF  EXTREMAL PROBLEMS
   UF  KAHLER MANIFOLDS
   UF  LACUNARITY (ORDER OF)
   UF  LUSIN POINTS
   UF  LUSIN THEOREM
   UF  MUSKHELISHVILI'S THEOREM
   UF  PHRAGMEN-LINDELOF THEOREM
   UF  POLYLOGARITHMS
   UF  RIEMANN SURFACES
   UF  TEICHMULLER'S THEOREM
   BT  MATHEMATICAL ANALYSIS
   NT  ANALYTIC FUNCTIONS
   NT  CONFORMAL MAPPING
   NT  MEROMORPHIC FUNCTIONS
   NT  SPECIAL FUNCTIONS(MATHEMATICS)

COMPLIANT WALLS
   BT  WALLS

COMPOSITE AIRCRAFT
   BT  aircraft

COMPOSITE ARMOR
   BT  ARMOR

COMPOSITE IMAGES
   BT  IMAGES

COMPOSITE MATERIALS
SN: BONDED COMBINATIONS OF PLASTICS, METALS,CERMETS, OR OTHER DISSIMILAR MATERIALS.
   BT  MATERIALS
   NT  AGGLOMERATES
   NT  CARBON CARBON COMPOSITES
   NT  CARBON PHENOLIC MATERIALS
   NT  CARBON REINFORCED COMPOSITES
   NT  CERAMIC MATRIX COMPOSITES
   NT  EPOXY COMPOSITES
   NT  EUTECTIC COMPOSITES
   NT  FIBER REINFORCED COMPOSITES
   NT  GRAPHITED MATERIALS
   NT  LAMINATES
   NT  MATRIX MATERIALS
   NT  QUARTZ PHENOLIC MATERIALS
   NT  REINFORCED PLASTICS
   NT  SYNTACTIC FOAMS
   NT  THERMOPLASTIC COMPOSITES
   NT  WHISKER COMPOSITES
   RT  BIMETALS

COMPOSITE PROPELLANTS
   BT  SOLID PROPELLANTS
   RT  DOUBLE BASE PROPELLANTS

COMPOSITE STRUCTURES
   BT  STRUCTURES

COMPOSITE WINGS
   BT  WINGS

COMPOSITION BOARD
   UF  PARTICLE BOARD

COMPOSITION(PROPERTY)
   NT  CHEMICAL COMPOSITION
   NT  CONCENTRATION(COMPOSITION)
   RT  SOLUTIONS(MIXTURES)

COMPOSTS
   BT  WASTE MANAGEMENT
   RT  SHREDDING

COMPOUND ENGINES
SN: RECIPROCATING ENGINES UTILIZING EXHAUST GAS TO ROTATE TURBINES.
   BT  INTERNAL COMBUSTION ENGINES

COMPREHENSION
   RT  INTELLIGIBILITY

COMPRESSED AIR
   BT  AIR
   BT  GASES
   RT  AIR COMPRESSORS

COMPRESSED FOODS
   BT  CONCENTRATED FOODS

COMPRESSED GAS CONTAINERS
   Use  GAS CYLINDERS

COMPRESSIBILITY
   Use  COMPRESSIVE PROPERTIES

COMPRESSIBLE FLOW
   BT  FLUID FLOW
   RT  INCOMPRESSIBLE FLOW

COMPRESSION
   NT  INCOMPRESSIBILITY
   NT  PULSE COMPRESSION
   NT  THERMOCOMPRESSION
   NT  TIME COMPRESSION
   RT  COMPRESSORS
   RT  DECOMPRESSION

COMPRESSION IGNITION
   BT  IGNITION
   RT  COMPRESSION IGNITION ENGINES

COMPRESSION IGNITION ENGINES
   BT  INTERNAL COMBUSTION ENGINES
   NT  DIESEL ENGINES
   RT  COMPRESSION IGNITION

COMPRESSION MOLDING
   BT  MOLDING TECHNIQUES

COMPRESSION RATIO
   BT  RATIOS

COMPRESSION SHOCK
   Use  SHOCK WAVES

COMPRESSION WAVES
SN: 01-OCT-1995 - MECHANICAL WAVES IN WHICH THE DIRECTION OF DISPLACEMENT IS PARALLEL TO THE DIRECTION OF PROPAGATION.
   BT  MECHANICAL WAVES

COMPRESSIVE PROPERTIES
SN: RESPONSE TO COMPRESSION LOADS.
   UF  COMPRESSIBILITY
   BT  MECHANICAL PROPERTIES
   NT  BEARING STRENGTH

COMPRESSIVE STRENGTH
SN: 01-OCT-1992 - THE MAXIMUM COMPRESSIVE STRESS A MATERIAL CAN STAND WITHOUT FAILURE.
   BT  STRENGTH(MECHANICS)
   RT  RESILIENCE

COMPRESSOR BLADES
   BT  ROTOR BLADES(TURBOMACHINERY)
   NT  AXIAL FLOW COMPRESSOR BLADES

COMPRESSOR COMPONENTS
SN: 01-DEC-1984
   UF  COMPRESSOR PARTS
   BT  COMPRESSORS

COMPRESSOR NOISE
   BT  MACHINERY NOISE

COMPRESSOR PARTS
   Use  COMPRESSOR COMPONENTS

COMPRESSOR ROTORS
   BT  ROTORS

COMPRESSOR STATORS
   BT  STATORS

COMPRESSORS
   BT  PNEUMATIC EQUIPMENT
   NT  AIR COMPRESSORS
   NT  COMPRESSOR COMPONENTS
   NT  GAS COMPRESSORS
   NT  HIGH PRESSURE COMPRESSORS
   NT  MIXED FLOW COMPRESSORS
   NT  OIL FREE COMPRESSORS
   NT  REFRIGERANT COMPRESSORS
   NT  ROTARY COMPRESSORS
   NT  SUPERCHARGERS
   RT  COMPRESSION

COMPTON SCATTERING
   BT  GAMMA RAY SCATTERING

COMPTROLLERS
   BT  FINANCE

COMPUTATION SCIENCE
SN: The field of study concerned with constructing mathematical models and quantitative analysis techniques using computers to analyze and solve scientific problems. In practical use, it is typically the application of computer simulation and other forms of computation to problems in various scientific disciplines. (March 2011)
   BT  COMPUTER SCIENCE
   NT  COMPUTERIZED SIMULATION
   NT  MATHEMATICAL ANALYSIS
   NT  MATHEMATICAL MODELS
   NT  NUMERICAL ANALYSIS
   NT  QUANTITATIVE ANALYSIS
   RT  NUMERICAL METHODS AND PROCEDURES

COMPUTATIONAL CHEMISTRY
SN: 01-APR-1998
   BT  ANALYTICAL CHEMISTRY

COMPUTATIONAL FLUID DYNAMICS
SN: 01-OCT-1992
   BT  FLUID DYNAMICS
   BT  NUMERICAL METHODS AND PROCEDURES
   NT  EULER EQUATIONS

COMPUTATIONAL LINGUISTICS
SN: an interdisciplinary field dealing with the statistical and/or rule-based modeling of natural language from a computational perspective. This modeling is not limited to any particular field of linguistics. Traditionally, computational linguistics was usually performed by computer scientists who had specialized in the application of computers to the processing of a natural language.
   BT  COMPUTER SCIENCE
   BT  LINGUISTICS
   NT  MACHINE TRANSLATION
   RT  MACHINE AIDED INDEXING

COMPUTATIONS
   BT  MATHEMATICAL ANALYSIS
   RT  CALCULATORS

COMPUTER ACCESS CONTROL
SN: 01-OCT-1999
   BT  COMPUTER SECURITY

COMPUTER AIDED DESIGN
   UF  COMPUTER AIDED ENGINEERING
   BT  COMPUTER APPLICATIONS
   RT  COMPUTER GRAPHICS

COMPUTER AIDED DIAGNOSIS
   BT  DIAGNOSIS(GENERAL)
   RT  MEDICAL COMPUTER APPLICATIONS

COMPUTER AIDED ENGINEERING
   Use  COMPUTER AIDED DESIGN

COMPUTER AIDED INSTRUCTION
   BT  COMPUTER APPLICATIONS
   BT  TEACHING METHODS
   NT  DISTANCE LEARNING
   RT  LEARNING MACHINES
   RT  TEACHING MACHINES

COMPUTER AIDED MAINTENANCE
SN: 01-JAN-2004
   BT  COMPUTER APPLICATIONS
   BT  MAINTENANCE

COMPUTER AIDED MANUFACTURING
SN: 01-DEC-1984 - THE USE OF COMPUTERS TO COMMUNICATE WORKINSTRUCTIONS TO AUTOMATE MACHINERY FOR THE HANDLING AND PROCESSING NEEDED TO PRODUCE A WORKPIECE.
   BT  COMPUTER APPLICATIONS
   BT  MANUFACTURING
   NT  COMPUTER NUMERICAL CONTROL

COMPUTER APPLICATIONS
   NT  COMPUTER AIDED DESIGN
   NT  COMPUTER AIDED INSTRUCTION
   NT  COMPUTER AIDED MAINTENANCE
   NT  COMPUTER AIDED MANUFACTURING
   NT  COMPUTER CRIMES
   NT  COMPUTER GAMES
   NT  COMPUTERIZED SIMULATION
   NT  MEDICAL COMPUTER APPLICATIONS

COMPUTER ARCHITECTURE
   BT  COMPUTER SCIENCE
   NT  HIGH LEVEL ARCHITECTURE
   NT  OPEN SYSTEM ARCHITECTURE

COMPUTER BENCHMARKING
SN: 01-OCT-1994 - THE EVALUATION PROCESS OF HARDWARE OR SOFTWARE TO A REFERENCE POINT SO THAT AN EVALUATION OF PERFORMANCE MAY BE MADE.
   BT  SOFTWARE METRICS

COMPUTER COMMUNICATIONS
   BT  COMMUNICATION AND RADIO SYSTEMS
   NT  COMMUNICATIONS PROTOCOLS
   NT  COMPUTER GATEWAYS
   RT  COMPUTER NETWORKS
   RT  ELECTRONIC MAIL

COMPUTER CRIMES
SN: 01-OCT-2004
   BT  COMPUTER APPLICATIONS
   BT  CRIMES

COMPUTER FILES
   UF  DATA SETS
   BT  FILES(RECORDS)

COMPUTER GAMES
SN: 01-APR-2008
   BT  COMPUTER APPLICATIONS

COMPUTER GATEWAYS
SN: 01-OCT-1991 - NODES COMMON TO TWO OR MORE COMPUTER NETWORKS THROUGH WHICH DATA FLOWS FROM NETWORK TO NETWORK.
   BT  COMPUTER COMMUNICATIONS
   BT  COMPUTER NETWORKS

COMPUTER GRAPHICS
   BT  COMPUTER SCIENCE
   BT  DISPLAY SYSTEMS
   BT  GRAPHICS
   NT  IMAGE PROCESSING
   RT  COMPUTER AIDED DESIGN
   RT  INTERACTIVE GRAPHICS

COMPUTER LOGIC
   BT  LOGIC
   NT  COMMUNICATIONS PROTOCOLS
   NT  FUZZY LOGIC
   RT  MATHEMATICAL LOGIC

COMPUTER NETWORK SECURITY
SN: Provisions and policies adopted by the network administrator to prevent and monitor unauthorized access, misuse, modification, or denial of the computer network and network-accessible resources. Network security involves the authorization of access to data in a network, which is controlled by the network administrator. (March 2011)
   BT  COMPUTER SECURITY
   NT  DATA TRANSMISSION SECURITY
   NT  FIREWALLS (COMPUTERS)
   NT  INTRUSION DETECTION (COMPUTERS)
   RT  COMPUTER NETWORKS

COMPUTER NETWORKS
SN: A CONFIGURATION OF TWO OR MORE COMPUTERS LINKED TO SHARE INFORMATION AND RESOURCES.(June 1989)
   BT  COMPUTER SCIENCE
   NT  CLOUD COMPUTING
   NT  COMPUTER GATEWAYS
   NT  INTERNET
   NT  LOCAL AREA NETWORKS
   NT  NETWORK ARCHITECTURE
   NT  NETWORK TOPOLOGY
   NT  ONLINE SYSTEMS
   NT  UBIQUITOUS COMPUTING
   NT  WIDE AREA NETWORKS
   NT  WIRELESS COMPUTER NETWORKS
   RT  COMPUTER COMMUNICATIONS
   RT  COMPUTER NETWORK SECURITY
   RT  DATA LINKS

COMPUTER NUMERICAL CONTROL
SN: 01-APR-2008
   BT  COMPUTER AIDED MANUFACTURING

COMPUTER OPERATORS
   BT  COMPUTER PERSONNEL
   BT  OPERATORS(PERSONNEL)

COMPUTER PERSONNEL
   BT  PERSONNEL
   NT  COMPUTER OPERATORS
   NT  PROGRAMMERS

COMPUTER PORTS
SN: 01-APR-2006
   BT  INPUT OUTPUT DEVICES

COMPUTER PRINTOUTS
   BT  OUTPUT

COMPUTER PROGRAM DOCUMENTATION
   BT  COMPUTER PROGRAMS
   BT  DOCUMENTS

COMPUTER PROGRAM RELIABILITY
   BT  COMPUTER PROGRAMS

COMPUTER PROGRAM VERIFICATION
   BT  COMPUTER PROGRAMS
   BT  VERIFICATION

COMPUTER PROGRAMMING
   UF  CODING(COMPUTERS)
   UF  PROGRAMMING(COMPUTERS)
   BT  COMPUTER SCIENCE
   NT  AUTOMATIC PROGRAMMING
   NT  CONTROL SEQUENCES
   NT  DEBUGGING (COMPUTERS)
   NT  FLOATING POINT OPERATION
   NT  MACHINE CODING
   NT  MACROPROGRAMMING
   NT  MICROPROGRAMMING
   NT  MIDDLEWARE
   NT  MULTIPROGRAMMING
   NT  OBJECT ORIENTED PROGRAMMING
   NT  STRUCTURED PROGRAMMING
   NT  SYMBOLIC PROGRAMMING
   RT  COMPUTER PROGRAMS
   RT  COMPUTERS
   RT  FLOW CHARTING
   RT  PROGRAMMERS
   RT  PROGRAMMING LANGUAGES

COMPUTER PROGRAMS
   UF  SOFTWARE(COMPUTERS)
   NT  ANTIVIRUS SOFTWARE
   NT  COMPILERS
   NT  COMPUTER PROGRAM DOCUMENTATION
   NT  COMPUTER PROGRAM RELIABILITY
   NT  COMPUTER PROGRAM VERIFICATION
   NT  COMPUTER VIRUSES
   NT  EXECUTIVE ROUTINES
   NT  FIELDS(COMPUTER PROGRAMS)
   NT  FIRMWARE
   NT  OPERATING SYSTEMS(COMPUTERS)
   NT  RANDOM NUMBER GENERATORS
   NT  SPREADSHEET SOFTWARE
   NT  SUBROUTINES
   RT  COMPUTER PROGRAMMING
   RT  COMPUTERS

COMPUTER SCIENCE
SN: The study of the theoretical foundations of information and computation and of practical techniques for their implementation and application in computer systems. Computer scientists invent algorithmic processes that create, describe, and transform information and formulate suitable abstractions to model complex systems. (July 2011)
   UF  computing science
   NT  ARTIFICIAL INTELLIGENCE
   NT  COMPUTATION SCIENCE
   NT  COMPUTATIONAL LINGUISTICS
   NT  COMPUTER ARCHITECTURE
   NT  COMPUTER GRAPHICS
   NT  COMPUTER NETWORKS
   NT  COMPUTER PROGRAMMING
   NT  COMPUTER SECURITY
   NT  DISTRIBUTED COMPUTING
   NT  INFORMATION SCIENCES
   NT  INFORMATION THEORY
   NT  OPERATING SYSTEMS(COMPUTERS)
   NT  PROGRAMMING LANGUAGES
   NT  QUANTUM INFORMATION SCIENCE
   NT  SOFTWARE ENGINEERING
   NT  VIRTUALIZATION

COMPUTER SECURITY
SN: - a branch of computer science. The objective of computer security includes protection of information and property from theft, corruption, or natural disaster, while allowing the information and property to remain accessible and productive to its intended users. The term computer system security means the collective processes and mechanisms by which sensitive and valuable information and services are protected from publication, tampering or collapse by unauthorized activities or untrustworthy individuals and unplanned events respectively.
   BT  COMPUTER SCIENCE
   NT  COMPUTER ACCESS CONTROL
   NT  COMPUTER NETWORK SECURITY
   NT  DEFENSE IN DEPTH
   NT  HACKING (COMPUTER SECURITY)
   RT  COMPUTER VIRUSES

COMPUTER VIRUSES
SN: A computer virus is a computer program that can copy itself and infect a computer. For the DTIC Thesaurus, the phrase ‘computer viruses’ use includes all types of malware, even those that do not have the reproductive ability. Malware includes computer viruses, computer worms, Trojan horses, most rootkits, spyware, dishonest adware and other malicious and unwanted software, including true viruses. (October 1991)
   UF  computer worms
   UF  malware
   UF  spyware
   BT  COMPUTER PROGRAMS
   RT  ANTIVIRUS SOFTWARE
   RT  COMPUTER SECURITY

COMPUTER VISION
SN: The science and technology of machines that see. Here 'see' means the machine is able to extract information from an image, to solve some task, or perhaps "understand" the scene in either a broad or limited sense. As a scientific discipline, computer vision is concerned with the theory behind artificial systems that extract information from images. The image data can take many forms, such as video sequences, views from multiple cameras, or multi-dimensional data from a medical scanner. (September 1990)
   BT  ARTIFICIAL INTELLIGENCE

computer worms
   Use  COMPUTER VIRUSES

COMPUTERIZED SIMULATION
   BT  COMPUTATION SCIENCE
   BT  COMPUTER APPLICATIONS
   BT  MATHEMATICAL MODELS
   NT  ANALOG SIMULATION
   NT  COMBAT SIMULATION
   NT  DIGITAL SIMULATION
   NT  DISTRIBUTED INTERACTIVE SIMULATION
   NT  HARDWARE IN THE LOOP
   NT  HYBRID SIMULATION

COMPUTERIZED TOMOGRAPHY
   BT  TOMOGRAPHY
   BT  X RAY DIAGNOSTICS

COMPUTERS
   NT  ANALOG COMPUTERS
   NT  ASYNCHRONOUS COMPUTERS
   NT  CENTRAL PROCESSING UNITS
   NT  DATA STORAGE SYSTEMS
   NT  DIGITAL COMPUTERS
   NT  FIRE CONTROL COMPUTERS
   NT  GUIDANCE COMPUTERS
   NT  GUIDED MISSILE COMPUTERS
   NT  HOST COMPUTERS
   NT  HYBRID COMPUTERS
   NT  MICROCOMPUTERS
   NT  MINICOMPUTERS
   NT  NAVIGATION COMPUTERS
   NT  SUPERCOMPUTERS
   RT  CALCULATORS
   RT  COMPUTER PROGRAMMING
   RT  COMPUTER PROGRAMS
   RT  CONTROL SIMULATORS

computing science
   Use  COMPUTER SCIENCE

CONCAVE BODIES
   BT  BODIES

CONCEALMENT
   BT  DECEPTION

CONCENTRATED FOODS
   BT  FOOD
   NT  COMPRESSED FOODS
   NT  DEHYDRATED FOODS

CONCENTRATION(CHEMISTRY)
   BT  CONCENTRATION(COMPOSITION)

CONCENTRATION(COMPOSITION)
   BT  COMPOSITION(PROPERTY)
   NT  CONCENTRATION(CHEMISTRY)
   NT  DEUTERIUM ION CONCENTRATION
   NT  DILUTION

CONCRETE
   BT  CONSTRUCTION MATERIALS
   NT  HIGH PERFORMANCE CONCRETE
   NT  PRECAST CONCRETE
   NT  REINFORCED CONCRETE
   NT  SHOTCRETE
   RT  MASONRY

concurrent computing
   Use  DISTRIBUTED COMPUTING

CONCURRENT ENGINEERING
SN: 01-OCT-1991 - SIMULTANEOUS DESIGN OF THE PRODUCT AND ITS MANUFACTURING AND LIFE CYCLE SUPPORT PROCESSES.
   BT  PRODUCTION ENGINEERING
   BT  SYSTEMS ENGINEERING

CONCUSSION
   BT  TRAUMA
   RT  TRAUMATIC SHOCK

CONDENSATION
SN: CHANGE OF STATE FROM GAS OR VAPOR TO LIQUID OR SOLID; ALSO METEOROLOGICAL PHENOMENON. EXCLUDES CHEMICAL REACTION.
   BT  PHASE TRANSFORMATIONS
   NT  ATMOSPHERIC CONDENSATION
   NT  CONDENSATION NUCLEI
   RT  CONDENSERS(LIQUEFIERS)

CONDENSATION NUCLEI
   BT  CONDENSATION

CONDENSATION REACTIONS
   UF  REFORMATSKY REACTIONS
   BT  CHEMICAL REACTIONS
   NT  FRIEDEL CRAFTS REACTIONS
   NT  GRIGNARD REACTIONS

CONDENSATION TRAILS
   UF  CONTRAILS
   UF  EXHAUST TRAILS
   UF  VAPOR TRAILS
   BT  ATMOSPHERIC CONDENSATION

CONDENSER TUBES
   BT  CONDENSERS(LIQUEFIERS)
   BT  TUBES

CONDENSERS(LIQUEFIERS)
   NT  CONDENSER TUBES
   NT  REFRIGERANT CONDENSERS
   NT  STEAM CONDENSERS
   RT  CONDENSATION
   RT  LIQUEFACTION

CONDIMENTS
   UF  PEPPER
   UF  SEASONINGS
   UF  SPICES
   BT  FOOD

CONDITIONED RESPONSE
   BT  RESPONSE(BIOLOGY)
   RT  CONDITIONING(LEARNING)

CONDITIONING(LEARNING)
   BT  LEARNING
   RT  CONDITIONED RESPONSE

CONDUCTION BANDS
   BT  ENERGY BANDS

CONDUCTION(HEAT TRANSFER)
   BT  HEAT TRANSFER
   RT  THERMAL CONDUCTIVITY

CONDUCTIVE LIQUIDS
   BT  LIQUIDS

CONDUCTIVE POLYMERS
SN: 01-JAN-2001
   BT  ELECTRIC CONDUCTORS
   BT  POLYMERS

CONDUCTIVITY
   BT  PHYSICAL PROPERTIES
   NT  ELECTRICAL CONDUCTIVITY
   NT  THERMAL CONDUCTIVITY

CONDUIT PLIERS
   BT  PLIERS

CONDUITS
   NT  ELECTRIC CONDUITS
   RT  PIPES

CONE PENETRATION TESTS
SN: 01-OCT-1995
   BT  SOIL TESTS

CONFERENCING(COMMUNICATIONS)
   BT  COMMUNICATION AND RADIO SYSTEMS

CONFIDENCE LEVEL
   BT  RELIABILITY
   BT  RISK ANALYSIS

CONFIDENCE LIMITS
   BT  STATISTICAL ANALYSIS

CONFIGURATION MANAGEMENT
   BT  MANAGEMENT

CONFIGURATIONS
   NT  AERODYNAMIC CONFIGURATIONS
   NT  ANTENNA CONFIGURATIONS
   NT  COAXIAL CONFIGURATIONS
   NT  CONVOLUTION
   NT  CRUCIFORM CONFIGURATIONS
   NT  OVERLAP
   NT  SHAPE
   NT  STUB CONFIGURATIONS

CONFINED ENVIRONMENTS
SN: RESTRICTED OR ISOLATED ENVIRONMENTS INVOLVING ANY NUMBER OF PEOPLE, SUCH AS IN SPACECRAFT, SUBMARINES, OR BOMB SHELTERS.
   BT  ENVIRONMENTS
   RT  ISOLATION

CONFINEMENT(GENERAL)
   NT  CONFINEMENT(NUCLEAR REACTORS)
   NT  ISOLATION

CONFINEMENT(NUCLEAR REACTORS)
SN: SYSTEMS OR EQUIPMENT THAT PROVIDE TOTAL ISOLATION OF HAZARDOUS MATERIALS IN CASEOF REACTOR ACCIDENTS.
   BT  CONFINEMENT(GENERAL)
   BT  NUCLEAR REACTORS

CONFINEMENT(PSYCHOLOGY)
   BT  STRESS(PSYCHOLOGY)

CONFLICT
SN: Retired September 2011.
   BT  retired descriptors

CONFLUENCE
   RT  CONVERGENCE

CONFORMAL ANTENNAS
SN: 01-JUL-2001
   BT  ANTENNAS
   BT  CONFORMAL STRUCTURES

CONFORMAL MAPPING
   BT  COMPLEX VARIABLES
   BT  MAPPING

CONFORMAL STRUCTURES
   BT  STRUCTURES
   NT  CONFORMAL ANTENNAS

CONFORMITY
   RT  ACCURACY

CONFRONTATION
   BT  retired descriptors

CONGENITAL ABNORMALITIES
   BT  ABNORMALITIES
   RT  GENETICS

CONGESTIVE HEART FAILURE
SN: 01-JAN-1998
   BT  CARDIOVASCULAR DISEASES

CONGO RIVER
   BT  RIVERS

CONGRESS
SN: 01-SEP-1981 - LEGISLATURE OF THE UNITED STATES CONSISTING OF THE SENATE AND THE HOUSE OF REPRESENTATIVES.
   BT  UNITED STATES GOVERNMENT
   NT  HOUSE OF REPRESENTATIVES
   NT  SENATE
   RT  LEGISLATION

CONICAL ANTENNAS
   BT  BROADBAND ANTENNAS
   NT  BICONICAL ANTENNAS
   NT  DISCONE ANTENNAS

CONICAL BODIES
   BT  BODIES OF REVOLUTION
   NT  FRUSTUMS

CONICAL NOZZLES
   BT  NOZZLES

CONICAL SCANNING
   BT  SCANNING
   RT  NUTATING ANTENNAS

CONICAL WINGS
   BT  DELTA WINGS

CONJUGATED POLYMERS
SN: 01-OCT-1998
   BT  POLYMERS

CONJUGATED PROTEINS
   Use  PROTEINS(CONJUGATED)

CONJUNCTIVITIS
   BT  BACTERIAL DISEASES
   BT  EYE DISEASES

CONNECTICUT
   BT  NEW ENGLAND

CONNECTICUT RIVER
   BT  RIVERS

CONNECTING RODS
   BT  ENGINE COMPONENTS
   BT  RODS

CONNECTIVE TISSUE
   BT  TISSUES(BIOLOGY)
   NT  ADIPOSE TISSUE
   NT  BONES
   NT  CARTILAGE
   NT  FASCIA
   NT  LIGAMENTS
   NT  MAST CELLS
   RT  MEMBRANES(BIOLOGY)

CONNECTORS
   NT  ELECTRIC CONNECTORS
   RT  COUPLINGS
   RT  FITTINGS
   RT  TERMINALS

CONNECTORS(ELECTRIC)
   Use  ELECTRIC CONNECTORS

CONSCIOUSNESS
   BT  COGNITION
   RT  ATTENTION

CONSERVATION
   NT  SOIL CONSERVATION
   NT  WATER CONSERVATION

CONSERVATION LAWS(MATHEMATICS)
   Use  DIFFERENTIAL GEOMETRY

CONSISTENCY
   BT  METHODOLOGY
   RT  ACCURACY

CONSOLES
   BT  CONTROL PANELS
   NT  KEYBOARDS
   RT  DISPLAY SYSTEMS

CONSOLIDATION TESTS(SOILS)
SN: 01-OCT-1992 - A TEST WHERE A SOIL SAMPLE IS CONFINED LATERALLY IN A RING AND IS COMPRESSED BETWEEN POROUS PLATES WHICH ARE SATURATED IN WATER.
   BT  SOIL TESTS

CONSORTIUMS
   BT  SCHOOLS

CONSTANTS
   NT  GRUNEISEN CONSTANT
   RT  COEFFICIENTS
   RT  PHYSICAL PROPERTIES
   RT  VARIABLES

CONSTELLATIONS
   BT  STARS
   NT  GALAXIES

CONSTITUTIONAL LAW
SN: 01-APR-2009 - LAW DERIVED FROM DOCUMENTS ESTABLISHING GOVERNMENT STRUCTURE AND RESPONSIBILITES.
   BT  FEDERAL LAW

CONSTITUTIVE EQUATIONS
SN: 01-APR-2005
   BT  EQUATIONS OF STATE
   BT  PARTIAL DIFFERENTIAL EQUATIONS
   NT  STRESS STRAIN RELATIONS

CONSTITUTIVE PROPERTIES
SN: 01-OCT-1998 - NONLINEAR PROPERTIES OF SOME MATERIALS IN WHICH AN EFFECT OCCURS OTHER THAN IN LINE WITH ITS GENERATING FORCE.
   BT  PHYSICAL PROPERTIES

CONSTRICTIONS
   NT  VASOCONSTRICTING
   RT  BARRIERS
   RT  BLOCKING
   RT  STENOSIS

CONSTRUCTION
   NT  CONSTRUCTION EQUIPMENT
   NT  CONSTRUCTION MATERIALS
   NT  FILAMENT WOUND CONSTRUCTION
   NT  MODULAR CONSTRUCTION
   NT  TAPE WOUND CONSTRUCTION
   NT  UNDERWATER CONSTRUCTION
   RT  ARCHITECTURE
   RT  DEMOLITION
   RT  EXCAVATION
   RT  FABRICATION

CONSTRUCTION EQUIPMENT
   BT  CONSTRUCTION
   NT  EARTH HANDLING EQUIPMENT
   NT  PILE DRIVERS
   NT  ROAD BUILDING EQUIPMENT
   RT  BULLDOZERS

CONSTRUCTION MATERIALS
   BT  CONSTRUCTION
   BT  MATERIALS
   NT  AGGREGATES(MATERIALS)
   NT  BACKFILLS
   NT  CONCRETE
   NT  EARTH FILLS
   NT  MASONITE
   NT  MASONRY
   NT  MORTARS(MATERIAL)

CONSULTING SERVICES
SN: 01-OCT-1997
   BT  CONTRACTORS

CONSUMABLE ELECTRODE PROCESS
   BT  ARC MELTING

CONSUMER PROBLEMS
   BT  CONSUMERS

CONSUMERS
   BT  PERSONNEL
   NT  CONSUMER PROBLEMS
   RT  CONSUMPTION
   RT  RETAIL

CONSUMPTION
   NT  ALCOHOL CONSUMPTION
   NT  ENERGY CONSUMPTION
   NT  FOOD CONSUMPTION
   NT  FUEL CONSUMPTION
   NT  OIL CONSUMPTION
   NT  OXYGEN CONSUMPTION
   RT  CONSUMERS
   RT  DEMAND(ECONOMICS)
   RT  UTILIZATION

CONTACT FUZES
   Use  IMPACT FUZES

CONTACT LENSES
SN: 01-DEC-1984 - A THIN LENS FITTED OVER THE CORNEA TO CORRECT DEFECTS OF VISION.
   BT  OPTICAL LENSES

CONTACT MINES
   BT  MINES(ORDNANCE)

CONTACT PRINTERS
   BT  PHOTOGRAPHIC PRINTERS
   RT  MICROCONTACT PRINTING

CONTAINERIZED SHIPPING
   BT  SHIPPING
   RT  CONTAINERSHIPS
   RT  SHIPPING CONTAINERS

CONTAINERIZING
   BT  PACKAGING
   RT  CONTAINERS

CONTAINERS
   NT  AMMUNITION CONTAINERS
   NT  AMPULES
   NT  AUTOCLAVES
   NT  BACKPACKS
   NT  BAGS
   NT  BARRELS
   NT  BLADDERS
   NT  BOTTLES
   NT  BOXES
   NT  CANISTERS
   NT  CARDBOARD BOXES
   NT  CRUCIBLES
   NT  FLASKS
   NT  HOUSINGS
   NT  HUMIDITY CABINETS
   NT  SHIPPING CONTAINERS
   NT  TANKS(CONTAINERS)
   NT  TRAYS
   RT  CONTAINERIZING

CONTAINERSHIPS
   BT  CARGO SHIPS
   RT  CONTAINERIZED SHIPPING

CONTAINMENT(GENERAL)
   NT  CONTAINMENT(NUCLEAR REACTORS)
   NT  OIL POLLUTION CONTAINMENT

CONTAINMENT(NUCLEAR REACTORS)
   BT  CONTAINMENT(GENERAL)
   BT  NUCLEAR REACTORS

CONTAMINANTS
   BT  CONTAMINATION
   RT  IMPURITIES

CONTAMINATION
   NT  BIOLOGICAL CONTAMINATION
   NT  CHEMICAL CONTAMINATION
   NT  CONTAMINANTS
   NT  FUEL CONTAMINATION
   NT  POLLUTION
   NT  RADIOACTIVE CONTAMINATION
   RT  DECONTAMINATION

CONTEXT FREE GRAMMARS
   UF  CF GRAMMARS
   BT  GRAMMARS

CONTEXT SENSITIVE GRAMMARS
   UF  CS GRAMMARS
   BT  GRAMMARS

CONTINENTAL DRIFT
   BT  PLATE TECTONICS

CONTINENTAL SHELVES
   BT  TOPOGRAPHY

CONTINENTAL SLOPES
   BT  TOPOGRAPHY

CONTINUITY
   RT  DISCONTINUITIES

CONTINUOUS MEDIA
   Use  CONTINUUM MECHANICS

CONTINUOUS PROCESSING
   BT  PROCESSING

CONTINUOUS ROD WARHEADS
   BT  WARHEADS

CONTINUOUS SPECTRA
   BT  SPECTRA
   RT  BREMSSTRAHLUNG

CONTINUOUS STRIP CAMERAS
   UF  STRIP CAMERAS
   BT  AERIAL CAMERAS

CONTINUOUS WAVE LASERS
   BT  LASERS

CONTINUOUS WAVE RADAR
   UF  CW RADAR
   BT  RADAR

CONTINUOUS WAVES
   BT  ELECTROMAGNETIC WAVE PROPAGATION

CONTINUUM MECHANICS
   UF  CONTINUOUS MEDIA
   BT  MECHANICS

CONTOUR INTEGRALS
SN: 01-OCT-1996
   BT  INTEGRALS

CONTOURS
   BT  SHAPE

CONTRACEPTION
SN: 01-OCT-1997 - INCLUDES METHODS AND AGENTS.
   BT  REPRODUCTION(PHYSIOLOGY)

CONTRACT ADMINISTRATION
   BT  MANAGEMENT
   NT  CONTRACT PROPOSALS
   NT  CONTRACTED SERVICES
   NT  CONTRACTS

CONTRACT PROPOSALS
   BT  CONTRACT ADMINISTRATION

CONTRACTED SERVICES
SN: 01-OCT-1997
   BT  CONTRACT ADMINISTRATION

CONTRACTION
   RT  ANTISPASMODIC AGENTS
   RT  SHRINKAGE

CONTRACTORS
SN: 01-DEC-1984 - ONE THAT PERFORMS WORK OR PROVIDES SUPPLIES (ON A LARGER SCALE) ACCORDING TO A CONTRACTUAL AGREEMENT.
   UF  SUBCONTRACTORS
   BT  CIVILIAN PERSONNEL
   NT  CONSULTING SERVICES
   NT  VENDORS
   RT  CONTRACTS

CONTRACTS
   BT  CONTRACT ADMINISTRATION
   NT  INCENTIVE CONTRACTS
   NT  WAIVER
   RT  CONTRACTORS
   RT  LEASING
   RT  PROCUREMENT

CONTRAILS
   Use  CONDENSATION TRAILS

CONTRAST
   BT  PERCEPTION
   NT  LEGIBILITY
   NT  PHOTOGRAPHIC CONTRAST

CONTRAST MEDIA(MEDICINE)
   UF  IODOCHLOROL
   UF  IODOPYRACET
   UF  LIPIODOL
   UF  RADIOPAQUE AGENTS
   BT  DIAGNOSTIC AGENTS

CONTROL
   RT  MANIPULATORS

CONTROL AMPLIFIERS
   Use  SERVOAMPLIFIERS

CONTROL BOXES
   Use  CONTROL PANELS

CONTROL CENTERS
   BT  COMMAND AND CONTROL SYSTEMS

CONTROL JETS
   BT  THRUST CONTROL

CONTROL KNOBS
   UF  KNOBS

CONTROL PANELS
   UF  CONTROL BOXES
   BT  CONTROL SYSTEMS
   NT  CONSOLES
   NT  INSTRUMENT PANELS
   NT  PANEL BOARDS(ELECTRICITY)
   RT  FIRING CIRCUITS

CONTROL RODS
SN: RODS THAT CONTROL THE REACTION RATE IN REACTORS. INCLUDES FUEL RODS AND NEUTRONABSORBERS.
   BT  REACTOR SYSTEM COMPONENTS

CONTROL SEQUENCES
SN: THE NORMAL SEQUENCE OF SELECTION OF DIGITAL COMPUTER INSTRUCTIONS FOR EXECUTION.
   BT  COMPUTER PROGRAMMING

CONTROL SIMULATORS
   BT  SIMULATORS
   RT  COMPUTERS

CONTROL STICKS
   BT  CONTROL SYSTEMS
   BT  MANUAL OPERATION

CONTROL SURFACES
SN: SURFACES THAT PROVIDE PREDICTABLE INFLUENCES OVER THE TRAJECTORIES OF BODIES MOVING THROUGH GASES OR LIQUIDS.
   BT  CONTROL SYSTEMS
   BT  SURFACES
   NT  AERODYNAMIC CONTROL SURFACES
   NT  FINS
   NT  GUIDE VANES
   NT  HYDRODYNAMIC CONTROL SURFACES
   NT  RUDDERS

CONTROL SYSTEMS
   NT  ADAPTIVE CONTROL SYSTEMS
   NT  CAMERA CONTROLS
   NT  COMMAND AND CONTROL SYSTEMS
   NT  CONTROL PANELS
   NT  CONTROL STICKS
   NT  CONTROL SURFACES
   NT  DEPTH CONTROL
   NT  FLIGHT CONTROL SYSTEMS
   NT  REACTION CONTROL SYSTEMS
   NT  REGULATORS
   RT  AIRBORNE WARNING AND CONTROL SYSTEM

CONTROL TEST VEHICLES
   BT  TEST VEHICLES

CONTROLLABLE PITCH PROPELLERS
SN: 01-NOV-1980 - AN AIRCRAFT OR SHIP PROPELLER IN WHICH THE ANGULAR PITCH OF THE BLADES CAN BE CHANGED WHILE THE PROPELLER IS IN MOTION.
   BT  PROPELLERS

CONTROLLABLE THRUST ROCKET ENGINES
SN: ROCKET MOTORS WHOSE THRUST MAGNITUDE CANBE VARIED OR CONTROLLED, AND/OR CAN BE SHUT OFF AND RESTARTED.
   UF  VARIABLE THRUST ROCKET MOTORS
   BT  ROCKET ENGINES

CONTROLLED ATMOSPHERES
   UF  INERT ATMOSPHERES
   BT  ATMOSPHERES
   NT  CLEAN ROOMS
   NT  GERM FREE ATMOSPHERES
   NT  SUBMARINE ATMOSPHERES
   RT  AIR CONDITIONING EQUIPMENT

CONTROLLED CONFIGURED VEHICLES
   BT  ADAPTIVE CONTROL SYSTEMS

CONTROLLED MINES
   BT  MINES(ORDNANCE)

CONTROLLED NUCLEAR FUSION
   BT  NUCLEAR FUSION
   NT  LASER INDUCED FUSION
   NT  TOKAMAKS
   RT  STELLARATORS

CONVALESCENCE
   BT  HOSPITALIZATIONS

CONVECTION
   NT  CONVECTION(ATMOSPHERIC)
   NT  CONVECTION(HEAT TRANSFER)
   NT  UPWELLING
   RT  ADVECTION
   RT  MOTION

CONVECTION(ATMOSPHERIC)
   BT  CONVECTION

CONVECTION(HEAT TRANSFER)
   BT  CONVECTION
   BT  HEAT TRANSFER

CONVENIENCE FOODS
   BT  FOOD

CONVENTIONAL WARFARE
   BT  WARFARE
   NT  CIVIL WAR(UNITED STATES)
   NT  FIRST WORLD WAR
   NT  IRAN IRAQ WAR
   NT  KOREAN WAR
   NT  PERSIAN GULF WAR
   NT  SECOND WORLD WAR
   NT  VIETNAM WAR

CONVERGENCE
   NT  WEAK CONVERGENCE
   RT  CONFLUENCE

CONVERGENCE ZONES
SN: 01-MAY-1981
   BT  UNDERWATER ACOUSTICS

CONVERGENT DIVERGENT NOZZLES
   BT  NOZZLES

CONVERSION
   NT  FREQUENCY CONVERSION
   RT  CONVERTERS

CONVERSION RATIO
   BT  RATIOS
   BT  REACTOR LATTICE PARAMETERS

CONVERTERS
   NT  ANALOG TO DIGITAL CONVERTERS
   NT  DC TO DC CONVERTERS
   NT  DIGITAL TO ANALOG CONVERTERS
   NT  DOWN CONVERTERS
   NT  ELECTROMECHANICAL CONVERTERS
   NT  FREQUENCY SHIFT CONVERTERS
   NT  IMAGE CONVERTERS
   NT  TORQUE CONVERTERS
   NT  VIDEO CONVERTERS
   RT  CONVERSION
   RT  INVERTERS

CONVERTIBLE PLANES
   BT  retired descriptors

CONVEX BODIES
   BT  BODIES
   NT  CYLINDRICAL BODIES
   NT  DISKS
   NT  ELLIPSOIDS
   NT  HEMISPHERES
   NT  HEMISPHERICAL SHELLS
   NT  MONOCOQUES
   NT  OGIVES
   NT  PARABOLIC BODIES
   NT  SPHERES

CONVEX CONES
   Use  CONVEX SETS

CONVEX FUNCTIONS
   Use  FUNCTIONS(MATHEMATICS)

CONVEX POLYHEDRAL CONES
   Use  CONVEX SETS

CONVEX SETS
   UF  CONVEX CONES
   UF  CONVEX POLYHEDRAL CONES
   UF  CONVEXITY THEROEM
   BT  ALGEBRA
   BT  SET THEORY

CONVEXITY THEROEM
   Use  CONVEX SETS

CONVEYORS
   UF  CHUTES
   UF  TRAMWAYS
   UF  TRANSFER TRAYS
   BT  MATERIALS HANDLING EQUIPMENT

CONVOLUTION
   BT  CONFIGURATIONS

CONVOLUTION INTEGRALS
   BT  INTEGRALS
   BT  INVERSE PROBLEMS
   RT  INTEGRAL TRANSFORMS

CONVULSIVE DISORDERS
   UF  ECLAMPSIA
   UF  MYOCLONUS
   UF  TETANY
   BT  NERVOUS SYSTEM DISEASES
   NT  EPILEPSY

COOK OFF
   BT  COMBUSTION

COOKING DEVICES
   UF  FRENCH FRYERS
   UF  WAFFLE IRONS
   BT  KITCHEN EQUIPMENT AND SUPPLIES
   NT  OVENS
   NT  STOVES
   NT  TOASTERS
   RT  HEATING ELEMENTS

COOL FLAMES
   BT  FLAMES

COOLANT PUMPS
   BT  COOLING AND VENTILATING EQUIPMENT
   BT  PUMPS

COOLANTS
   BT  COOLING
   NT  LIQUID METAL COOLANTS
   NT  REACTOR COOLANTS
   NT  REFRIGERANTS

COOLING
   UF  CHILLING
   NT  AIR COOLED
   NT  COOLANTS
   NT  COOLING AND VENTILATING EQUIPMENT
   NT  FILM COOLING
   NT  LIQUID COOLING
   NT  RADIANT COOLING
   NT  REGENERATIVE COOLING
   NT  SUPERCOOLING
   NT  SWEAT COOLING
   NT  THERMOELECTRIC COOLING
   RT  ABLATION
   RT  FREEZING
   RT  HEAT LOSS
   RT  THERMODYNAMICS

COOLING AND VENTILATING EQUIPMENT
   BT  COOLING
   NT  AIR CONDITIONING EQUIPMENT
   NT  BLOWERS
   NT  COOLANT PUMPS
   NT  COOLING FANS
   NT  COOLING TOWERS
   NT  OIL COOLERS
   NT  REFRIGERANT COMPRESSORS
   NT  REFRIGERANT CONDENSERS
   NT  REFRIGERATION SYSTEMS
   NT  VENTILATION DUCTS
   NT  VENTILATORS
   NT  WATER COOLERS

COOLING FANS
   BT  COOLING AND VENTILATING EQUIPMENT
   BT  FANS

COOLING TOWERS
   BT  COOLING AND VENTILATING EQUIPMENT

COOPERATION
   BT  ATTITUDES(PSYCHOLOGY)
   BT  GROUP DYNAMICS

COORDINATES
   UF  AXES(COORDINATES)
   NT  AXES
   NT  CARTESIAN COORDINATES
   NT  DEGREES OF FREEDOM
   NT  GRIDS(COORDINATES)
   NT  VARIABLE COORDINATES
   RT  GRIDS

COPOLYMERIZATION
   BT  POLYMERIZATION

COPOLYMERS
   BT  POLYMERS
   NT  BLOCK COPOLYMERS
   NT  OLEFIN POLYMERS

COPPER
   BT  TRANSITION METALS
   RT  COPPER ALLOYS
   RT  COPPER COMPOUNDS

COPPER ALLOYS
   BT  ALLOYS
   NT  BRASS
   NT  BRONZE
   NT  COPPER NICKEL ALLOYS
   NT  MANGANIN
   RT  COPPER

COPPER COATINGS
   BT  METAL COATINGS

COPPER COMPOUNDS
   BT  GROUP I COMPOUNDS
   NT  COPPER OXIDES
   NT  COPPER SULFIDES
   RT  COPPER

COPPER NICKEL ALLOYS
   BT  COPPER ALLOYS
   BT  NICKEL ALLOYS
   NT  MONEL METAL

COPPER OXIDES
SN: 01-OCT-1993
   BT  COPPER COMPOUNDS
   NT  YTTRIUM BARIUM COPPER OXIDES

COPPER SULFIDES
   BT  COPPER COMPOUNDS
   BT  SULFIDES

COPPER VAPOR LASERS
SN: 01-APR-2001
   BT  METAL VAPOR LASERS
   BT  PULSED LASERS

COPROPORPHYRINS
   Use  PORPHYRINS

COPYING CAMERAS
   BT  CAMERAS

COPYRIGHTS
SN: 01-SEP-1981 - THE EXCLUSIVE LEGALLY SECURED RIGHT TO REPRODUCE, PUBLISH AND SELL THE MATTER AND FORM OF A LITERARY, MUSICAL OR ARTISTIC WORK FOR A PERIOD OF 28 YEARS WITH A RIGHT TO RENEWAL FOR ANOTHER 28 YEARS.
   RT  PATENTS

CORAL
   BT  COELENTERATA
   NT  CORAL REEFS

CORAL REEFS
   BT  CORAL
   BT  REEFS
   NT  ATOLLS

CORDAGE
   NT  ROPE
   RT  MECHANICAL CABLES

CORDIERITE
   Use  MINERALS

CORDITE
   Use  SMOKELESS PROPELLANTS

CORDTEX
   Use  DETONATING CORD

CORE SAMPLING
   BT  SAMPLING

CORE STORAGE
   BT  DATA STORAGE SYSTEMS
   BT  MEMORY DEVICES
   RT  BUFFER STORAGE

CORES
   NT  HONEYCOMB CORES
   NT  MAGNETIC CORES
   NT  REACTOR CORES

CORIOLIS EFFECT
   BT  METEOROLOGICAL PHENOMENA

CORK
   BT  ORGANIC MATERIALS

CORN
   UF  MAIZE
   BT  CEREALS
   BT  FARM CROPS

CORNEA
   BT  EYE

CORNER REFLECTORS
   BT  REFLECTORS
   NT  RADAR CORNER REFLECTORS

CORONAL MASS EJECTIONS
SN: 01-OCT-2000
   BT  SOLAR DISTURBANCES

CORONARY ARTERIES
   BT  ARTERIES
   RT  CORONARY DISEASE

CORONARY DISEASE
   BT  CARDIOVASCULAR DISEASES
   RT  CORONARY ARTERIES

CORONAS
   NT  ELECTRICAL CORONA
   NT  SOLAR CORONA

CORPORATE DOWNSIZING
SN: 01-OCT-1994
   BT  CORPORATIONS
   RT  PERSONNEL MANAGEMENT

CORPORATE INFORMATION MANAGEMENT
SN: 01-OCT-1992 - THE CREATION, USE, SHARING, AND DISPOSITION OF DATA OR INFORMATION BY FUNCTION PROPONENTS AS CORPORATE RESOURCES CRITICAL TO THE EFFECTIVE AND EFFICIENT OPERATION OF FUNCTIONAL ACTIVITIES WHICH INCLUDES THE STRUCTURING OF FUNCTIONAL MANAGEMENT IMPROVEMENT PROCESSES TO PRODUCE ANDCONTROL THE USE OF DATA AND INFORMATIONIN FUNCTIONAL ACTIVITIES, INFORMATION RESOURCE MANAGEMENT, SUPPORTING INFORMATION TECHNOLOGY AND INFORMATION SERVICES.
   BT  INFORMATION PROCESSING
   BT  SYSTEMS MANAGEMENT

CORPORATIONS
   UF  FIRMS
   BT  ORGANIZATIONS
   NT  CORPORATE DOWNSIZING

CORPS LEVEL ORGANIZATIONS
SN: 01-SEP-1981 - A TACTICAL UNIT USUALLY CONSISTING OF TWO OR MORE DIVISIONS AND AUXILIARY ARMY AND SERVICES.
   BT  MILITARY ORGANIZATIONS
   NT  DIVISION LEVEL ORGANIZATIONS

CORPUSCULAR RADIATION
   BT  RADIATION
   NT  ALPHA PARTICLES
   NT  BETA PARTICLES
   NT  ELECTRON BEAMS
   NT  NEUTRINOS
   NT  NEUTRON BEAMS
   NT  PROTON BEAMS
   NT  SOLAR COSMIC RAYS

CORRECTIONS
   NT  ERROR CORRECTION CODES
   RT  EDITING
   RT  ERRORS

CORRELATION
SN: 01-MAY-1983 - TO PUT IN RELATIONSHIP TO EACH OTHER; TO ESTABLISH A SYSTEMATIC RELATIONSHIP; THE ACT OR PROCESS OF CORRELATING.
   RT  CORRELATION TECHNIQUES
   RT  CORRELATORS
   RT  LEAST SQUARES METHOD

CORRELATION GUIDANCE
   BT  GUIDANCE

CORRELATION TECHNIQUES
SN: MATHEMATICAL PROCEDURES FOR EXAMINING THE SIGNIFICANCE OF RELATIONSHIPS AMONG VARIABLES WHICH MAY BE USED IN OPTIMIZATION OF PHYSICAL SYSTEMS AND EQUIPMENT, AS WELL AS IN PURELY THEORETICAL INVESTIGATIONS.
   BT  STATISTICAL ANALYSIS
   NT  AUTOCORRELATION
   NT  CROSS CORRELATION
   RT  CORRELATION

CORRELATORS
   NT  OPTICAL CORRELATORS
   RT  CORRELATION

CORROSION
   UF  CORROSION RESEARCH
   UF  CORROSIVE EFFECTS
   BT  CHEMICAL ATTACK(DEGRADATION)
   BT  DEGRADATION
   NT  ATMOSPHERIC CORROSION
   NT  CAVITATION CORROSION
   NT  GALVANIC CORROSION
   NT  SEA WATER CORROSION
   NT  STRESS CORROSION

CORROSION ENGINEERING
   Use  MATERIALS ENGINEERING

CORROSION INHIBITION
   UF  CORROSION PREVENTION
   BT  INHIBITION
   NT  CATHODIC PROTECTION
   NT  PASSIVATION(METALLURGY)
   RT  ANTIOXIDANTS
   RT  CORROSION RESISTANCE

CORROSION PREVENTION
   Use  CORROSION INHIBITION

CORROSION RESEARCH
   Use  CORROSION

CORROSION RESISTANCE
   BT  RESISTANCE
   NT  OXIDATION RESISTANCE
   RT  CORROSION INHIBITION
   RT  CORROSION RESISTANT ALLOYS

CORROSION RESISTANT ALLOYS
   BT  ALLOYS
   RT  CORROSION RESISTANCE

CORROSIVE EFFECTS
   Use  CORROSION

CORROSIVE GASES
   BT  GASES

CORROSIVE LIQUIDS
   BT  LIQUIDS

CORRUGATING
   RT  GROOVING

CORTICOSTEROID AGENTS
   UF  CORTICOSTERONE
   UF  CORTISONE
   UF  DCA
   UF  DEOXYCORTICOSTERONE
   UF  DESOXYCORTICOSTERONE
   UF  ELECTROCORTIN
   UF  HYDROCORTICOSTERON
   UF  PREDINSOLONE
   UF  TRIAMCINOLONE
   BT  ADRENAL CORTEX HORMONES
   RT  CORTISOL

CORTICOSTERONE
   Use  CORTICOSTEROID AGENTS

CORTICOTROPIN
   Use  ADRENOCORTICOTROPIC HORMONE

CORTISOL
   BT  ALCOHOLS
   BT  STEROIDS
   RT  CORTICOSTEROID AGENTS

CORTISONE
   Use  CORTICOSTEROID AGENTS

CORUNDUM
   BT  ORES(NONMETALLIC)
   NT  RUBY
   NT  SAPPHIRE
   RT  ABRASIVES
   RT  ALUMINUM OXIDES

CORYDALINE DERIVATIVES
   Use  ISOQUINOLINE ALKALOIDS

CORYNEBACTERIACEAE
   BT  EUBACTERIALES
   NT  CORYNEBACTERIUM
   NT  LISTERIA

CORYNEBACTERIUM
   BT  CORYNEBACTERIACEAE
   NT  CORYNEBACTERIUM DIPHTHERIAE

CORYNEBACTERIUM DIPHTHERIAE
   BT  CORYNEBACTERIUM

CORYZA
   Use  ADENOVIRUSES

COSMETICS
   Use  TOILET ARTICLES

COSMIC DUST
   BT  DUST

COSMIC RADIATION
   Use  COSMIC RAYS

COSMIC RADIO WAVES
   Use  EXTRATERRESTRIAL RADIO WAVES

COSMIC RAY TELESCOPES
   BT  RADIATION MEASURING INSTRUMENTS
   RT  COSMIC RAYS

COSMIC RAYS
   UF  COSMIC RADIATION
   BT  IONIZING RADIATION
   NT  GALACTIC COSMIC RAYS
   NT  SOLAR COSMIC RAYS
   RT  COSMIC RAY TELESCOPES

COSMOLOGY
   BT  ASTROPHYSICS

COSMONAUTS
   Use  ASTRONAUTS

COSMOTRON
   Use  PARTICLE ACCELERATORS

COST ANALYSIS
   BT  COSTS
   NT  COST ESTIMATES
   NT  COST OVERRUNS
   RT  ECONOMIC ANALYSIS
   RT  FEASIBILITY STUDIES

COST BENEFIT ANALYSIS
SN: 01-OCT-1997
   BT  COST EFFECTIVENESS

COST EFFECTIVENESS
   BT  COSTS
   NT  COST BENEFIT ANALYSIS

COST ESTIMATES
   BT  COST ANALYSIS
   BT  ESTIMATES

COST MODELS
   BT  COSTS
   BT  ECONOMIC MODELS

COST OVERRUNS
   BT  COST ANALYSIS

COST REDUCTION
SN: 01-JAN-2000
   BT  SAVINGS

COSTA RICA
   BT  CENTRAL AMERICA

COSTS
   BT  ECONOMICS
   NT  COST ANALYSIS
   NT  COST EFFECTIVENESS
   NT  COST MODELS
   NT  DESIGN TO COST
   NT  HIGH COSTS
   NT  INDIRECT COSTS
   NT  LIFE CYCLE COSTS
   NT  LOW COSTS
   NT  PRICE INDEX

COTTON
   BT  FARM CROPS
   RT  COTTON TEXTILES

COTTON CELLULOSE
   Use  CELLULOSE

COTTON DUCK
   Use  COTTON TEXTILES

COTTON TEXTILES
   UF  COTTON DUCK
   BT  TEXTILES
   RT  COTTON

COTTONSEED OIL
   Use  VEGETABLE OILS

COUETTE FLOW
   BT  FLUID FLOW
   BT  STEADY FLOW
   BT  TWO DIMENSIONAL FLOW

COULOMETERS
   BT  MEASURING INSTRUMENTS
   RT  AMMETERS
   RT  POTENTIOSTATIC TECHNIQUES

coulometric techniques
   Use  POTENTIOSTATIC TECHNIQUES

coulometry
   Use  POTENTIOSTATIC TECHNIQUES

COUMARINS
   BT  LACTONES
   RT  ANTICOAGULANTS

COUNSELING
   BT  CLINICAL PSYCHOLOGY

COUNT RATE METERS
   BT  RADIATION MEASURING INSTRUMENTS
   RT  COUNTERS

COUNTDOWN PROCEDURES
   Use  CHECKOUT PROCEDURES

COUNTER COUNTERMEASURES
SN: 01-MAY-1981
   BT  COUNTERMEASURES
   NT  ELECTRONIC COUNTER COUNTERMEASURES
   NT  OPTICAL COUNTER COUNTERMEASURES

COUNTER PROLIFERATION
   Use  ARMS CONTROL

COUNTERATTACK
SN: 01-APR-2007
   BT  ACTIVE DEFENSE

COUNTERDRUG OPERATIONS
   Use  DRUG INTERDICTION

COUNTERFORCES(MILITARY)
SN: 01-DEC-1984 - THE EMPLOYMENT OF STRATEGIC AIR AND MISSILE FORCES TO DESTROY OR RENDER IMPOTENTMILITARY CAPABILITIES OF AN ENEMY FORCE. BOMBERS AND THEIR BASES, BALLISTIC MISSILE SUBMARINES, ICBM SILOS, ABM AND AIR DEFENSE INSTALLATIONS, COMMAND AND CONTROL CENTER, AND NUCLEAR STOCKPILES ARE TYPICAL COUNTERFORCE TARGETS.
   BT  MILITARY OPERATIONS

COUNTERINSURGENCY
   BT  UNCONVENTIONAL WARFARE
   RT  INSURGENCY
   RT  MILITARY ADVISORS
   RT  MILITARY ASSISTANCE

COUNTERINTELLIGENCE
   BT  INTELLIGENCE

COUNTERMEASURES
   BT  DEFENSE SYSTEMS
   NT  ACOUSTIC COUNTERMEASURES
   NT  ANTIDISTURBANCE DEVICES
   NT  ANTIREFLECTION COATINGS
   NT  COUNTER COUNTERMEASURES
   NT  DECEPTION
   NT  ELECTRONIC COUNTERMEASURES
   NT  GUIDED MISSILE COUNTERMEASURES
   NT  MINE COUNTERMEASURES
   NT  OPTICAL COUNTERMEASURES
   NT  SIGNATURE REDUCTION
   NT  THERMAL COUNTERMEASURES
   NT  TORPEDO COUNTERMEASURES

COUNTERMINING
   BT  MINE COUNTERMEASURES

COUNTERRECOIL MECHANISMS
   Use  RECOIL MECHANISMS

COUNTERROTATING PROPELLERS
   BT  PROPELLERS

COUNTERROTATION
   BT  ROTATION

COUNTERS
   NT  CRYSTAL COUNTERS
   NT  PARTICLE COUNTERS
   NT  PULSE COUNTERS
   NT  QUANTUM COUNTERS
   NT  ROUNDS COUNTERS
   NT  TIME INTERVAL COUNTERS
   RT  COUNT RATE METERS

COUNTERS (GUN ACTUATION)
   Use  ROUNDS COUNTERS

COUNTERTERRORISM
SN: 01-SEP-1990 - OFFENSIVE MEASURES TAKEN IN RESPONSE TO TERRORISTS ACTS.
   BT  UNCONVENTIONAL WARFARE
   RT  TERRORISM

COUNTING METHODS
   NT  CENSUS
   NT  COINCIDENCE COUNTING
   NT  SCORING
   RT  BLOOD COUNTS
   RT  CRYSTAL COUNTERS
   RT  SAMPLING

COUPLED ANTENNAS
   BT  ANTENNAS

COUPLERS
   NT  ANTENNA COUPLERS
   NT  COUPLING CIRCUITS
   NT  WAVEGUIDE COUPLERS
   RT  COUPLING(INTERACTION)
   RT  COUPLINGS

COUPLING CIRCUITS
   BT  CIRCUITS
   BT  COUPLERS

COUPLING(INTERACTION)
   BT  INTERACTIONS
   NT  SYNERGISM
   RT  COUPLERS
   RT  COUPLINGS

COUPLINGS
   BT  FITTINGS
   NT  FLEXIBLE COUPLINGS
   NT  HOSE COUPLINGS
   NT  HYDRAULIC COUPLINGS
   NT  SELF SEALING COUPLINGS
   NT  SHAFT COUPLINGS
   NT  TORQUE COUPLINGS
   RT  CONNECTORS
   RT  COUPLERS
   RT  COUPLING(INTERACTION)

COURSE INDICATORS
   BT  FLIGHT INSTRUMENTS
   BT  NAVIGATIONAL AIDS
   NT  DRIFTMETERS

COURSES(EDUCATION)
SN: 01-MAY-1983 - CURRICULUM.
   BT  EDUCATION

COURT CASES
   Use  CASE LAW

COVALENT BONDS
   BT  CHEMICAL BONDS
   NT  VALENCE
   NT  VAN DER WAALS FORCES

COVARIANCE
   BT  STATISTICAL ANALYSIS

COVERALLS
   BT  PROTECTIVE CLOTHING

COVERINGS
   NT  FLOOR COVERINGS
   NT  INLET SHROUDS
   NT  PROTECTIVE COVERINGS
   RT  CAPPING
   RT  HOODS
   RT  JACKETS

COVERT OPERATIONS
   NT  SMUGGLING
   RT  INFILTRATION(PERSONNEL)

COXIELLA
   BT  RICKETTSIACEAE
   NT  COXIELLA BURNETII

COXIELLA BURNETII
   BT  COXIELLA
   RT  Q FEVER

COXSACKIE VIRUS
   BT  ENTEROVIRUSES

CRABS
   BT  CRUSTACEA

CRACK PROPAGATION
   BT  CRACKS
   RT  J INTEGRALS

CRACK TIPS
SN: JAN 2000.
   BT  CRACKS

CRACKING(FRACTURING)
   BT  CRACKS
   NT  MICROCRACKING

CRACKS
   BT  PHYSICAL PROPERTIES
   NT  CRACK PROPAGATION
   NT  CRACK TIPS
   NT  CRACKING(FRACTURING)

CRAMER-SMIRNOV TEST
   Use  STATISTICAL TESTS

CRANES
   BT  HOISTS
   NT  GANTRIES
   RT  BOOMS(EQUIPMENT)

CRANIAL NERVES
   BT  PERIPHERAL NERVOUS SYSTEM
   NT  AUDITORY NERVE
   NT  OCULOMOTOR NERVE
   NT  OLFACTORY NERVE
   NT  OPTIC NERVE

CRANK-NICOLSON PROCEDURE
   Use  NUMERICAL METHODS AND PROCEDURES

CRANKCASES
   BT  ENGINE COMPONENTS
   NT  CRANKSHAFTS
   RT  POSITIVE CRANKCASE VENTILATION

CRANKED WINGS
   UF  GULL WINGS
   BT  WINGS

CRANKSHAFTS
   BT  CRANKCASES
   BT  SHAFTS(MACHINE ELEMENTS)

CRASH INJURIES
   BT  TRAUMA

CRASH LANDINGS
SN: 01-DEC-1984
   BT  AIRCRAFT LANDINGS
   BT  AVIATION ACCIDENTS
   NT  DITCHING

CRASH RESCUE BOATS
   BT  BOATS
   BT  SEA RESCUE EQUIPMENT

CRASH RESISTANCE
   BT  RESISTANCE
   RT  CRASHWORTHINESS

CRASH VEHICLES
SN: VEHICLES USED IN CRASH RESCUE OPERATIONS.
   BT  VEHICLES

CRASHES
   BT  ACCIDENTS
   BT  MOTOR VEHICLE ACCIDENTS

CRASHWORTHINESS
SN: 01-SEP-1981 - THE ABILITY OF ANY VEHICLE TO SURVIVE A CRASH ENVIRONMENT.
   BT  SAFETY
   RT  CRASH RESISTANCE

CRATERING
   BT  LANDING IMPACT
   RT  CRATERS

CRATERS
   BT  IMPACT POINT
   RT  CRATERING

CRAYON DETECTORS
   BT  CHEMICAL AGENT DETECTORS

CRAZING
   BT  DAMAGE

CREATINE
   BT  AMINO ACIDS

CREATINE PHOSPHOKINASE
   BT  PHOSPHORUS TRANSFERASES

CREATININE
   BT  URINE

CREATIVITY
   BT  MENTAL ABILITY

CREEP
SN: SLOW PLASTIC DEFORMATION UNDER STRESS.
   BT  MECHANICAL PROPERTIES
   RT  COLD FLOW
   RT  PLASTIC DEFORMATION
   RT  PLASTIC FLOW

CREEP STRENGTH
   BT  MECHANICAL PROPERTIES

CREEP TESTS
   BT  TEST METHODS

CREOSOTE
   BT  ORGANIC MATERIALS

CRESCENT WINGS
   Use  VARYING SWEEP WINGS

CREWS
   BT  PERSONNEL
   NT  FLIGHT CREWS
   NT  GROUND CREWS
   NT  GUN CREWS
   NT  SPACE CREWS
   NT  TANK CREWS

CRIMES
   NT  AIRCRAFT HIJACKING
   NT  ASSAULT
   NT  BRIBERY
   NT  BURGLARY
   NT  COMPUTER CRIMES
   NT  CRIMINAL CORRUPTION
   NT  HOMICIDE
   NT  HUMAN TRAFFICKING
   NT  KIDNAPPINGS
   NT  THEFT
   RT  CRIMINAL INVESTIGATIONS
   RT  CRIMINALS
   RT  CRIMINOLOGY
   RT  POLICE

CRIMINAL CORRUPTION
SN: -- any course of action or failure to act by individuals or organizations, public or private, in violation of law or trust for profit or gain. Examples of corruption include politcal corruption, police corruption, corporate crime, and state-corporate crime. Political corruption is the use of legislated powers by government officials for illegitimate private gain. Police corruption is a specific form of police misconduct designed to obtain financial benefits, other personal gain, and/or career advancement for a police officer or officers in exchange for not pursuing, or selectively pursuing, an investigation or arrest. State-corporate crime because, in many contexts, the opportunity to commit crime emerges from the relationship between the corporation and the state. Local governments may be more susceptible to corruption because interactions between private individuals and officials happen at greater levels of intimacy and with more frequency at more decentralized levels. Forms of corruption pertaining to money like bribery, extortion, embezzlement, and graft are found in local government systems. Other forms of political corruption are nepotism and patronage systems. (January 2008)
   UF  police corruption
   UF  political corruption
   BT  CRIMES

CRIMINAL INVESTIGATIONS
   BT  CRIMINAL JUSTICE SYSTEM
   NT  FORENSIC ANALYSIS
   RT  CRIMES
   RT  SITE INVESTIGATIONS

CRIMINAL JUSTICE SYSTEM
   NT  CRIMINAL INVESTIGATIONS
   NT  LAW ENFORCEMENT
   NT  PRISONS
   RT  LITIGATION

CRIMINALS
SN: 01-APR-2009 - USED TO DESCRIBE PERSONS WHOSE PRINCIPAL OCCUPATION LIES IN ACTIVITIES OUTSIDE OF THE LAW.
   BT  PERSONNEL
   RT  CRIMES

CRIMINOLOGY
   BT  SOCIOLOGY
   NT  AIRCRAFT HIJACKING
   NT  DELINQUENCY
   NT  DOMESTIC VIOLENCE
   RT  CRIMES

CRIMPING
   Use  FOLDING

CRIMPING TOOLS
   BT  SMALL TOOLS
   RT  FOLDING

CRISIS MANAGEMENT
   BT  MANAGEMENT

CRITICAL ASSEMBLIES
   BT  NUCLEAR REACTORS

CRITICAL PATH METHODS
   BT  NETWORK ANALYSIS(MANAGEMENT)

CRITICAL TEMPERATURE
   BT  TEMPERATURE
   RT  PHASE TRANSFORMATIONS

CROATIA
SN: 01-OCT-1994
   BT  YUGOSLAVIA
   RT  SERBOCROATIAN LANGUAGE

CROSS CORRELATION
   BT  CORRELATION TECHNIQUES

CROSS CULTURE(SOCIOLOGY)
   BT  CULTURE

CROSS FLOW
   BT  FLOW

CROSS MODULATION
   BT  MODULATION

CROSS POLARIZATION
   BT  POLARIZATION

CROSS ROLLING
   Use  ROLLING(METALLURGY)

CROSS SECTIONS
   NT  NUCLEAR CROSS SECTIONS
   NT  OPTICAL CROSS SECTIONS
   NT  RADAR CROSS SECTIONS

CROSS SECTIONS (NUCLEAR)
   Use  NUCLEAR CROSS SECTIONS

CROSSBAR SWITCHES
   BT  ELECTRIC SWITCHES

CROSSED FIELD DEVICES
   BT  ELECTRON TUBE COMPONENTS

CROSSINGS
   RT  BRIDGES

CROSSLINKING(CHEMISTRY)
   BT  CHEMICAL BONDS
   BT  CURING
   NT  VULCANIZATION

CROSSTALK
   BT  INTERFERENCE

CROSSWINDS
   BT  WIND

CROWN ETHERS
SN: 01-JAN-1998
   BT  ETHERS

CRUCIBLES
   BT  CONTAINERS

CRUCIFORM CONFIGURATIONS
SN: 01-MAY-1983 - A CONFIGURATION IN THE SHAPE OF A CROSS.
   BT  CONFIGURATIONS
   RT  CRUCIFORM WINGS

CRUCIFORM WINGS
   BT  WINGS
   RT  CRUCIFORM CONFIGURATIONS

CRUDE OIL
   UF  PETROLEUM
   BT  OILS
   BT  PETROLEUM PRODUCTS
   NT  OIL SHALES
   NT  SHALE OIL
   RT  NATURAL RESOURCES

CRUISE MISSILES
   BT  GUIDED MISSILES

CRUISERS
   BT  NAVAL VESSELS(COMBATANT)

CRUSHER GAGES
   BT  PRESSURE GAGES

CRUSHING
   BT  COMMINUTION

CRUSTACEA
   UF  CLADOCERA
   BT  ARTHROPODA
   BT  SHELLFISH
   NT  BARNACLES
   NT  CRABS
   NT  DECAPODA
   NT  ISOPODA
   NT  OSTRACODA
   NT  SHRIMP

CRYOBIOLOGY
   BT  BIOLOGY

CRYOCOOLERS
SN: 01-OCT-1996
   BT  CRYOPUMPING
   BT  REFRIGERATION SYSTEMS

CRYOGENIC COOLING
   Use  CRYOPUMPING

CRYOGENIC ENGINES
   BT  LIQUID PROPELLANT ROCKET ENGINES

CRYOGENIC PROPELLANTS
   BT  LIQUID ROCKET PROPELLANTS

CRYOGENIC STORAGE DEVICES
   BT  MEMORY DEVICES

CRYOGENICS
SN: STUDIES AT TEMPERATURES BELOW 100 K.
   BT  PHYSICS
   NT  CRYOPUMPING
   RT  LIQUEFIED GASES

CRYOLITE
SN: 01-APR-2006
   BT  ALUMINUM COMPOUNDS
   BT  ORES(METAL SOURCES)

CRYOPROTECTIVE AGENTS
   BT  CHEMICAL AGENTS

CRYOPUMPING
   UF  CRYOGENIC COOLING
   BT  CRYOGENICS
   BT  PUMPING
   NT  CRYOCOOLERS

CRYOSTATS
   BT  THERMOSTATS

CRYOSURGERY
SN: 01-OCT-1996
   BT  SURGERY

CRYPTOCOCCUS
   BT  DEUTEROMYCETES(IMPERFECT FUNGI)

CRYPTOGRAPHY
SN: Practice and study of hiding information. Modern cryptography intersects the disciplines of mathematics, computer science, and electrical engineering.
   UF  CRYPTOLOGY
   UF  ENCRYPTION
   BT  MATHEMATICS
   NT  SECURE COMMUNICATIONS
   NT  SPEECH SCRAMBLING
   NT  STEGANOGRAPHY
   RT  CODING

CRYPTOLOGY
   Use  CRYPTOGRAPHY

CRYSTAL CHEMISTRY
   BT  CHEMISTRY
   NT  HYDRATES

CRYSTAL COUNTERS
   BT  COUNTERS
   BT  RADIATION MEASURING INSTRUMENTS
   RT  COUNTING METHODS

CRYSTAL DEFECTS
   BT  CRYSTAL LATTICES
   NT  POINT DEFECTS

CRYSTAL DETECTORS
   BT  DEMODULATORS

CRYSTAL ENGINEERING
   Use  MATERIALS ENGINEERING

CRYSTAL FILTERS
   BT  BANDPASS FILTERS
   BT  ELECTRIC FILTERS

CRYSTAL GROWTH
   BT  GROWTH(GENERAL)
   NT  EPITAXIAL GROWTH
   RT  CRYSTALLIZATION
   RT  TWINNING(CRYSTALLOGRAPHY)

CRYSTAL HOLDERS
SN: PERMANENT MOUNTING OF CRYSTALS. FOR PROCESSING HOLDERS, SEE JIGS.
   BT  HOLDERS

CRYSTAL LATTICES
   BT  CRYSTAL STRUCTURE
   NT  CRYSTAL DEFECTS
   NT  SIMPLE CUBIC LATTICES
   NT  SUPERLATTICES
   RT  LATTICE DYNAMICS

CRYSTAL MIXERS
   BT  MIXERS(ELECTRONICS)
   BT  SEMICONDUCTOR DIODES

CRYSTAL OSCILLATORS
   BT  OSCILLATORS

CRYSTAL OVENS
   BT  FURNACES

CRYSTAL RECTIFIERS
   BT  RECTIFIERS

CRYSTAL STRUCTURE
   BT  CRYSTALLOGRAPHY
   NT  BRILLOUIN ZONES
   NT  CRYSTAL LATTICES
   NT  CRYSTAL SUBSTRUCTURE
   NT  GRAIN STRUCTURES(METALLURGY)
   NT  MOSAIC STRUCTURES(CRYSTALLOGRAPHY)
   NT  PLEOCHROISM
   NT  POLYCRYSTALLINE
   NT  SYMMETRY(CRYSTALLOGRAPHY)
   RT  GRUNEISEN CONSTANT

CRYSTAL SUBSTRUCTURE
   BT  CRYSTAL STRUCTURE
   NT  FERMI SURFACES

CRYSTAL VIDEO RECEIVERS
   BT  MICROWAVE RECEIVERS

CRYSTALLIZATION
   BT  CRYSTALLOGRAPHY
   BT  PHASE TRANSFORMATIONS
   NT  RECRYSTALLIZATION
   RT  CRYSTAL GROWTH

CRYSTALLOGRAPHY
   NT  CRYSTAL STRUCTURE
   NT  CRYSTALLIZATION
   NT  CRYSTALS
   NT  TWINNING(CRYSTALLOGRAPHY)
   RT  SOLID STATE PHYSICS

CRYSTALS
   BT  CRYSTALLOGRAPHY
   NT  CZOCHRALSKI CRYSTALS
   NT  ETCHED CRYSTALS
   NT  FERROELECTRIC CRYSTALS
   NT  IONIC CRYSTALS
   NT  LIQUID CRYSTALS
   NT  METAL CRYSTALS
   NT  PIEZOELECTRIC CRYSTALS
   NT  SINGLE CRYSTALS
   NT  SPHERULITES
   NT  WHISKERS(CRYSTALS)

CS AGENTS
   BT  IRRITATING AGENTS

CS GRAMMARS
   Use  CONTEXT SENSITIVE GRAMMARS

CUBA
   BT  COMMUNIST COUNTRIES
   BT  WEST INDIES

CUBANES
SN: 01-JAN-1999 - C8H8 IN A CUBICALLY STRUCTURED MOLECULE.
   BT  HYDROCARBONS

CUBIC SPLINE TECHNIQUE
   BT  INTERPOLATION

CUEING
   BT  FIRE CONTROL SYSTEMS
   BT  TARGET DESIGNATORS

CUES(STIMULI)
   BT  STIMULI

CULEX
   BT  CULICIDAE

CULICIDAE
   UF  MOSQUITOES
   BT  DIPTERA
   NT  AEDES
   NT  ANOPHELES
   NT  CULEX
   NT  URANOTAENIA
   RT  MOSQUITO BORNE DISEASES

CULICOIDES
   BT  DIPTERA

CULTURAL DIFFERENCES
SN: 01-JUL-2008
   BT  HUMAN RELATIONS

CULTURAL RESOURCES
SN: 01-OCT-1993 - THE TOTALITY OF SOCIALLY TRANSMITTED BEHAVIOR PATTERNS, ARTS, BELIEFS, INSTITUTIONS AND ALL OTHER PRODUCTS OF HUMAN WORKAND THOUGHT TYPICAL OF A POPULATION OR COMMUNITY AT A GIVEN TIME.
   BT  RESOURCES

CULTURE
   NT  CROSS CULTURE(SOCIOLOGY)
   RT  MUSEUMS
   RT  SOCIAL SCIENCES

CULTURE MEDIA
   BT  FOOD
   NT  AGAR

CULTURES(BIOLOGY)
   BT  BIOLOGY
   NT  TISSUE CULTURE
   RT  BIOPSY

CUMENES
   BT  AROMATIC HYDROCARBONS

CUMULATIVE FREQUENCY FUNCTIONS
   Use  STATISTICAL FUNCTIONS

CUMULONIMBUS CLOUDS
   UF  THUNDERCLOUDS
   BT  CLOUDS
   RT  THUNDERSTORMS

CUMULUS CLOUDS
   BT  CLOUDS

CUPOLAS
   UF  OBSERVATION CUPOLAS

CUPREA BARK ALKALOIDS
   Use  QUINOLINE ALKALOIDS

CURARE ALKALOIDS
   UF  INTOCOSTRIN
   UF  TUBOCURARINES
   BT  ISOQUINOLINE ALKALOIDS

CURIE TEMPERATURE
   BT  MAGNETIC PROPERTIES
   BT  TEMPERATURE
   RT  DIAMAGNETISM

CURING
   UF  RIPENING
   BT  CHEMICAL REACTIONS
   NT  CROSSLINKING(CHEMISTRY)
   NT  CURING AGENTS
   NT  TANNING

CURING AGENTS
   BT  CURING

CURIUM
   BT  ACTINIDE SERIES
   BT  TRANSURANIUM ELEMENTS

CURIUM COMPOUNDS
   BT  TRANSURANIUM COMPOUNDS

CURRENCY
   Use  MONEY

CURRENT AMPLIFIERS
   BT  AMPLIFIERS
   RT  VOLTAGE AMPLIFIERS

CURRENT DENSITY
   RT  ELECTRON DENSITY

CURRENT LIMITERS
   BT  LIMITERS

CURRENT REGULATORS
   UF  CURRENT STABILIZERS
   UF  ELECTRIC CURRENT REGULATORS
   BT  REGULATORS

CURRENT STABILIZERS
   Use  CURRENT REGULATORS

CURRENTS
   NT  ELECTRIC CURRENT
   NT  OCEAN CURRENTS
   NT  RIVER CURRENTS
   NT  TIDAL CURRENTS
   NT  TURBIDITY CURRENTS

CURRENTS (ELECTRICAL)
   Use  ELECTRIC CURRENT

CURVATURE
   BT  CURVES(GEOMETRY)
   BT  DIFFERENTIAL GEOMETRY
   BT  SHAPE

CURVE FITTING
   BT  NUMERICAL ANALYSIS
   RT  LEAST SQUARES METHOD

CURVED PROFILES
   BT  GEOMETRIC FORMS
   BT  PROFILES
   NT  ASPHERICAL LENSES

CURVES(GEOMETRY)
   BT  LINES(GEOMETRY)
   NT  CATENARIES
   NT  CIRCLES
   NT  CURVATURE
   NT  HELIXES
   NT  HYPERBOLAS
   NT  PARABOLAS

CUSHIONING
   BT  PROTECTION

CUSTOMER SERVICES
SN: 01-APR-1998
   RT  USER NEEDS

CUT OFF VALVES
   BT  VALVES

CUTTERS
   BT  CUTTING TOOLS
   NT  CHAFF CUTTERS
   RT  CUTTING

CUTTERS(VESSELS)
SN: 01-OCT-1996
   BT  COAST GUARD SHIPS

CUTTING
   NT  DISSECTION
   NT  UNDERWATER CUTTING
   RT  CUTTERS

CUTTING FLUIDS
   BT  LUBRICANTS

CUTTING TOOLS
   BT  TOOLS
   NT  CABLE CUTTING DEVICES
   NT  CARBIDE TOOLS
   NT  CUTTERS
   NT  DIES
   NT  KNIVES
   NT  MILLING MACHINES
   NT  SAWS

CW RADAR
   Use  CONTINUOUS WAVE RADAR

CYANAMIDES
   BT  AMIDES

CYANATES
   BT  ESTERS
   NT  ISOCYANATES
   NT  THIOCYANATES

CYANIDES
   BT  ORGANIC COMPOUNDS
   NT  HYDROGEN CYANIDE

CYANINE
   BT  HETEROCYCLIC COMPOUNDS

CYANINE DYES
   BT  DYES

CYANOCOBOLAMIN
   Use  VITAMIN B COMPLEX

CYANOGEN
   BT  NITRILES

CYANOPHYTA
   Use  ALGAE

CYANURIC ACID
   BT  ORGANIC ACIDS

CYBERNETICS
   NT  CODING
   RT  INFORMATION THEORY
   RT  NEURAL NETS

CYBERTERRORISM
SN: 01-APR-2001
   BT  INFORMATION WARFARE

CYBERWARFARE
SN: Actions by a nation-state to penetrate another nation's computers or networks for the purposes of causing damage or disruption (implies country-to-country action). (March 2011)
   BT  WARFARE
   RT  HACKING (COMPUTER SECURITY)

CYCLAZOCINE
   BT  DRUGS

CYCLES
   NT  CLOSED CYCLE SYSTEMS
   NT  LIFE CYCLES
   NT  SOLAR CYCLE
   NT  THERMODYNAMIC CYCLES
   NT  VUILLEUMIER CYCLE

CYCLIC COMPOUNDS
   BT  ORGANIC COMPOUNDS
   NT  CYCLOALKANES
   NT  CYCLOALKENES
   NT  CYCLOHEXANOLS
   NT  CYCLOHEXANONES
   NT  HETEROCYCLIC COMPOUNDS
   NT  MONOCYCLIC COMPOUNDS
   NT  NORCARANE
   NT  POLYCYCLIC COMPOUNDS

CYCLIC GROUPS
   Use  GROUPS(MATHEMATICS)

CYCLIC LOADS
SN: 01-JUN-1989 - ALTERNATING OR REPETITIVE LOADS.
   BT  DYNAMIC LOADS

CYCLIC RATE
   BT  RATES

CYCLIC TESTS
   BT  TEST METHODS
   NT  THERMAL CYCLING TESTS

CYCLIC VARIATIONS
   Use  PERIODIC VARIATIONS

CYCLOALKANES
   BT  ALKANES
   BT  CYCLIC COMPOUNDS
   NT  CYCLOBUTANES
   NT  CYCLOHEXANES
   NT  CYCLOOCTANES
   NT  CYCLOPENTANES
   NT  CYCLOPROPANES

CYCLOALKENES
   BT  ALKENES
   BT  CYCLIC COMPOUNDS
   NT  AZULENES
   NT  CYCLOBUTENES
   NT  CYCLOHEPTATRIENES
   NT  CYCLOHEXENES
   NT  CYCLOOCTATETRAENE
   NT  CYCLOPENTENES

CYCLOBUTANES
   BT  CYCLOALKANES

CYCLOBUTENES
   BT  CYCLOALKENES

CYCLOGENESIS
SN: 01-SEP-1990 - ANY DEVELOPMENT OR STRENGTHENING OF CYCLONIC CIRCULATION IN THE ATMOSPHERE.
   BT  CYCLONES

CYCLOHEPTATRIENES
   BT  CYCLOALKENES

CYCLOHEXANES
   BT  CYCLOALKANES

CYCLOHEXANOLS
   BT  ALCOHOLS
   BT  CYCLIC COMPOUNDS

CYCLOHEXANONES
   BT  CYCLIC COMPOUNDS
   BT  KETONES
   NT  CAPROLACTONES

CYCLOHEXENES
   BT  CYCLOALKENES
   NT  DIMETHYLCYCLOHEXENE

CYCLOIDAL PROPELLERS
   BT  MARINE PROPELLERS

CYCLONE SEPARATORS
   BT  SEPARATORS

CYCLONES
   BT  ATMOSPHERIC MOTION
   NT  CYCLOGENESIS
   NT  TROPICAL CYCLONES

CYCLONITE
   Use  RDX

CYCLOOCTANES
   BT  CYCLOALKANES

CYCLOOCTATETRAENE
   BT  CYCLOALKENES

CYCLOPENTANES
   BT  CYCLOALKANES

CYCLOPENTENES
   BT  CYCLOALKENES

CYCLOPHONS
   Use  RADIAL BEAM TUBES

CYCLOPHOSPHAMIDE
   BT  NITROGEN HETEROCYCLIC COMPOUNDS

CYCLOPROPANES
   BT  CYCLOALKANES

CYCLOSTOMATA
   BT  AQUATIC ANIMALS

CYCLOTOL
   BT  EXPLOSIVES

CYCLOTOMIC UNITS
   Use  NUMBER THEORY

CYCLOTRIMETHYLENETRINITRAMINE
   Use  RDX

CYCLOTRON MAGNETS
   BT  MAGNETS
   BT  PARTICLE ACCELERATOR COMPONENTS

CYCLOTRON RADIATION(PLASMA PHYSICS)
   Use  CYCLOTRON RESONANCE

CYCLOTRON RESONANCE
   UF  CYCLOTRON RADIATION(PLASMA PHYSICS)
   UF  HELICAL PATHS (CHARGED PARTICLES)
   BT  RESONANCE

CYCLOTRON TARGETS
   Use  PARTICLE ACCELERATOR TARGETS

CYCLOTRON WAVES
SN: WAVES ASSOCIATED WITH THE ELECTRON BEAMSOF TRAVELING WAVE TUBES.
   BT  ELECTROMAGNETIC RADIATION
   RT  ELECTRON BEAMS
   RT  TRAVELING WAVE TUBES

CYCLOTRONS
   BT  PARTICLE ACCELERATORS

CYLINDRICAL ANTENNAS
   BT  ANTENNAS

CYLINDRICAL BODIES
   BT  BODIES OF REVOLUTION
   BT  CONVEX BODIES
   NT  STIFFENED CYLINDERS

CYPRUS
   BT  MEDITERRANEAN SEA ISLANDS
   BT  MIDDLE EAST

CYSTEINE
   BT  AMINO ACIDS
   BT  THIOLS

CYSTINE
   BT  AMINO ACIDS

CYSTOSCOPES
   BT  MEDICAL INSTRUMENTS
   BT  OPTICAL EQUIPMENT

CYSTS
   BT  NEOPLASMS
   NT  OOCYSTS

CYTOCHEMISTRY
   BT  BIOCHEMISTRY

CYTOCHROME OXIDASE
   BT  COENZYMES
   BT  OXIDOREDUCTASES

CYTOKINES
SN: 01-JUL-2001
   BT  BLOOD PROTEINS
   BT  IMMUNOGENS
   NT  INTERFERON

CYTOLOGY
   UF  CELL BIOLOGY
   BT  BIOLOGY
   NT  CELL DIVISION

CYTOMEGALOVIRUS
   BT  HERPETIC VIRUSES

CYTOPATHOLOGY
SN: 01-SEP-1981 - A BRANCH OF PATHOLOGY CONCERNED WITH ABNORMALITIES WITHIN CELLS. DEALS WITH THEMANIFESTATIONS OF DISEASE ON THE CELLULAR LEVEL.
   BT  PATHOLOGY
   NT  PLEOCYTOSIS

CYTOPLASM
   BT  CELL STRUCTURE
   NT  GRANULES
   NT  KINETOPLAST
   NT  MICROSOMES
   NT  MITOCHONDRIA
   NT  PROTOPLASM
   NT  RIBOSOMES

CYTOSINE
   BT  PYRIMIDINES

CYTOTOXINS
   BT  TOXINS
   NT  LYMPHOTOXINS

CZECH LANGUAGE
SN: 01-OCT-1999
   BT  NATURAL LANGUAGE
   RT  CZECH REPUBLIC

CZECH REPUBLIC
SN: 01-OCT-1994
   BT  CZECHOSLOVAKIA
   RT  CZECH LANGUAGE

CZECHOSLOVAKIA
   BT  EASTERN EUROPE
   NT  CZECH REPUBLIC
   NT  SLOVAKIA

CZOCHRALSKI CRYSTALS
   BT  CRYSTALS

D BAND
   BT  ULTRAHIGH FREQUENCY

D REGION
   BT  IONOSPHERE

DACRON
   BT  POLYESTER FIBERS
   RT  TEREPHTHALIC ACID

DAILY OCCURRENCE
   BT  TIME DEPENDENCE

DAIRY EQUIPMENT
   BT  FARMS

DAIRY PRODUCTS
   BT  FOOD
   NT  CHEESES
   NT  MILK

DAMAGE
   NT  AMMUNITION DAMAGE
   NT  BOMB DAMAGE
   NT  CRAZING
   NT  DAMAGE ASSESSMENT
   NT  FOREIGN OBJECT DAMAGE
   NT  LASER DAMAGE
   NT  NUCLEAR EXPLOSION DAMAGE
   NT  RADIATION DAMAGE
   NT  TORPEDO DAMAGE
   RT  DAMAGE TOLERANCE

DAMAGE ASSESSMENT
   BT  DAMAGE

DAMAGE CONTROL
   NT  WARNING SYSTEMS
   RT  RISK MANAGEMENT

DAMAGE TOLERANCE
SN: 01-APR-1998
   BT  HARDENING
   RT  DAMAGE

DAMPING
SN: THE SUPPRESSION OF MOTION IN A VIBRATINGOR OSCILLATING SYSTEM, USUALLY BY CONVERSION TO HEAT.
   RT  ENERGY ABSORBERS
   RT  VIBRATION ISOLATORS

DAMS
   NT  ARCH DAMS
   NT  EARTH DAMS
   NT  ROCKFILL DAMS
   NT  WEIRS
   RT  FLOOD CONTROL
   RT  IRRIGATION SYSTEMS
   RT  LOCKS(WATERWAYS)
   RT  SPILLWAYS

DAPHNIA
SN: 01-MAY-1983 - A GENUS OF MINUTE FRESHWATER BRANCHIOPODCRUSTACEANS HAVING IMPERFECT SEGMENTATION; VERY LARGE BIRAMOUS ANTENNAE THAT ARE THE CHIEF LOCOMOTOR ORGANS, AND A TRANSPARENT CARAPACE ENCLOSING THE BODY.
   BT  AQUATIC ANIMALS
   BT  ARTHROPODA

DARK ADAPTATION
   BT  ADAPTATION(PHYSIOLOGY)
   RT  NIGHT VISION

DARK TRACE TUBES
   BT  CATHODE RAY TUBES

DARKNESS
   NT  NIGHT
   RT  LIGHT
   RT  OPTICAL PROPERTIES

DASHPOTS
   BT  MECHANICAL COMPONENTS
   BT  MECHANICAL IMPEDANCE

DATA ACQUISITION
   BT  ACQUISITION
   NT  OBSERVATION

DATA BASES
   BT  INFORMATION SCIENCES
   NT  RELATIONAL DATA BASES

DATA COMPRESSION
   BT  INFORMATION THEORY
   NT  IMAGE COMPRESSION
   NT  SPEECH COMPRESSION

DATA DISPLAYS
   BT  DISPLAY SYSTEMS

DATA FUSION
SN: 01-OCT-1992
   BT  INFORMATION PROCESSING

DATA LINKS
   BT  DATA TRANSMISSION SYSTEMS
   BT  TELECOMMUNICATIONS
   NT  PHOTOGRAPHIC DATA LINKS
   RT  COMMUNICATIONS NETWORKS
   RT  COMPUTER NETWORKS
   RT  DECOMMUTATORS

DATA MANAGEMENT
   RT  RECORDS MANAGEMENT

DATA MINING
   UF  pattern mining
   UF  text mining
   BT  INFORMATION SCIENCES

DATA PROCESSING
   BT  INFORMATION PROCESSING
   NT  ASSOCIATIVE PROCESSING
   NT  DATA PROCESSING EQUIPMENT
   NT  DATA PROCESSING SECURITY
   NT  DATA REDUCTION
   NT  DISTRIBUTED DATA PROCESSING
   NT  INPUT OUTPUT PROCESSING
   RT  DATA TRANSMISSION SYSTEMS
   RT  IMAGE PROCESSING

DATA PROCESSING EQUIPMENT
   BT  DATA PROCESSING
   BT  PROCESSING EQUIPMENT
   NT  CODERS
   NT  DATA PROCESSING TERMINALS
   NT  DECODERS
   NT  DELINEATORS
   NT  INPUT OUTPUT DEVICES
   NT  OFFLINE SYSTEMS
   NT  PRINTERS(DATA PROCESSING)

DATA PROCESSING SECURITY
   BT  DATA PROCESSING

DATA PROCESSING TERMINALS
   BT  DATA PROCESSING EQUIPMENT
   BT  INPUT OUTPUT DEVICES
   BT  TERMINALS

DATA RATE
   BT  RATES

DATA REDUCTION
   BT  DATA PROCESSING
   NT  TABULATION PROCESSES
   RT  PREPROCESSING

DATA SETS
   Use  COMPUTER FILES

DATA STORAGE SYSTEMS
   BT  COMPUTERS
   NT  BUFFER STORAGE
   NT  CORE STORAGE
   NT  MAGNETIC DRUMS
   NT  MAGNETIC TAPE
   NT  MASS STORAGE
   NT  OPTICAL STORAGE
   NT  WORD ORGANIZED STORAGE
   RT  MEMORY DEVICES

DATA TRANSMISSION SECURITY
SN: 01-APR-2002
   UF  NETWORK SECURITY
   BT  COMPUTER NETWORK SECURITY

DATA TRANSMISSION SYSTEMS
   NT  DATA LINKS
   NT  ELECTRONIC MAIL
   NT  PACKET SWITCHING
   RT  DATA PROCESSING

DAWN CHORUS
   UF  CHORUS(DAWN PHENOMENON)
   BT  ATMOSPHERICS

DAY
   BT  DAYLIGHT
   RT  NIGHT

DAYLIGHT
   BT  LIGHT
   NT  DAY
   NT  SUNLIGHT
   NT  TWILIGHT

DC (CURRENT)
   Use  DIRECT CURRENT

DC TO DC CONVERTERS
   BT  CONVERTERS

DCA
   Use  CORTICOSTEROID AGENTS

DD(VESSELS)
   Use  DESTROYERS

DDT
   BT  HALOGENATED HYDROCARBONS
   BT  INSECTICIDES

DE-ICING MATERIALS
   Use  DEICING MATERIALS

DE-ICING SYSTEMS
   Use  DEICING SYSTEMS

DE MOIVRE DISTRIBUTIONS
   Use  STATISTICAL DISTRIBUTIONS

DEACTIVATION
   NT  SHUTDOWNS
   RT  ACTIVATION
   RT  INACTIVATION

DEAD RECKONING
   BT  NAVIGATION

DEAD TIME
   BT  TIME INTERVALS

DEADWEIGHT
   Use  STATIC LOADS

DEAERATION
   BT  DEGASIFICATION
   RT  AERATION

DEAFNESS
   BT  AUDITORY DEFECTS
   BT  PHYSICAL DISABILITIES
   RT  HEARING

DEATH
   BT  LIFE(BIOLOGY)
   NT  MORTALITY RATE
   RT  CASUALTIES
   RT  LIFE SPAN(BIOLOGY)
   RT  STILLBIRTHS

DEATH RATES
   Use  MORTALITY RATE

DEBRIEFING
   BT  INTERVIEWING

DEBRIS
   NT  NUCLEAR WEAPON DEBRIS
   NT  SPACECRAFT DEBRIS
   RT  WASTES

DEBUGGING (COMPUTERS)
   BT  COMPUTER PROGRAMMING

DECABORANES
   BT  BORANES

DECAMETRIC RADIATION
   BT  EXTRATERRESTRIAL RADIO WAVES

DECANES
   BT  ALKANES

DECAPODA
   BT  CEPHALOPODA
   BT  CRUSTACEA
   NT  LOBSTER

DECAY
   NT  RADIOACTIVE DECAY
   RT  DECOMPOSITION
   RT  HALF LIFE

DECAY (RADIOACTIVE)
   Use  RADIOACTIVE DECAY

DECAY SCHEMES
SN: TRANSFORMATION SCHEMES BY WHICH RADIOACTIVE DECAY OF A GIVEN ISOTOPE THROUGH A SUCCESSION OF ENERGY LEVELS APPROACHES STABLE GROUND STATE.
   BT  RADIOACTIVE DECAY

DECELERATION
   BT  ACCELERATION
   RT  BRAKING

DECENTRALIZATION
   BT  MANAGEMENT ENGINEERING

DECEPTION
   BT  COUNTERMEASURES
   NT  CAMOUFLAGE
   NT  CONCEALMENT
   NT  DECOYS
   NT  RADAR DECEPTION
   NT  RADIO DECEPTION

DECISION AIDS
SN: 01-JUN-1989 - AIDS TO DECISION MAKING, USUALLY COMPUTER BASED.
   BT  DECISION MAKING
   RT  DECISION SUPPORT SYSTEMS

DECISION MAKING
   NT  DECISION AIDS
   RT  DECISION THEORY
   RT  JUDGEMENT(PSYCHOLOGY)

DECISION SUPPORT SYSTEMS
SN: 01-SEP-1990 - A COMPUTER-BASED SYSTEM THAT ENABLES MANAGEMENT TO INTERROGATE THE COMPUTER SYSTEM ON AN AD HOC BASIS FOR VARIOUS KINDS OF MANAGEMENT/DECISION MAKING INFORMATION.
   UF  DSS
   BT  MANAGEMENT INFORMATION SYSTEMS
   RT  DECISION AIDS

DECISION THEORY
   BT  THEORY
   NT  DISCRIMINATE ANALYSIS
   NT  STATISTICAL DECISION THEORY
   RT  DECISION MAKING
   RT  GAME THEORY

DECK MARKERS
   BT  DECK SAFETY EQUIPMENT

DECK SAFETY EQUIPMENT
   BT  BOAT AND SHIP SAFETY
   BT  MARINE SAFETY EQUIPMENT
   BT  SHIP AUXILIARY EQUIPMENT
   NT  DECK MARKERS

DECKS
   Use  SHIP DECKS

DECODERS
   BT  DATA PROCESSING EQUIPMENT
   RT  CODERS
   RT  DECODING

DECODING
   BT  CODING
   RT  DECODERS
   RT  DEMODULATION

DECOMMUTATORS
   RT  DATA LINKS

DECOMPOSITION
SN: BREAKDOWN OF CHEMICALS INTO SIMPLER CONSTITUENTS. FOR REVERSIBLE MOLECULAR BREAKDOWN, SEE DISSOCIATION. FOR IMPAIRMENTOF PHYSICAL PROPERTIES OF MATERIALS, ETC., SEE DEGRADATION.
   BT  DISSOCIATION
   NT  EXPLOSIVE DECOMPOSITION
   NT  GAS BREAKDOWN
   NT  LYSIS
   NT  PHOTODECOMPOSITION
   NT  SPINODAL DECOMPOSITION
   RT  DECAY

DECOMPRESSION
   NT  EXPLOSIVE DECOMPRESSION
   NT  SONIC DECOMPRESSION
   RT  COMPRESSION
   RT  DECOMPRESSION CHAMBERS

DECOMPRESSION CHAMBERS
   BT  HYPERBARIC CHAMBERS
   RT  DECOMPRESSION

DECOMPRESSION SICKNESS
   UF  BENDS(PHYSIOLOGY)
   BT  STRESS(PHYSIOLOGY)
   RT  ALTITUDE SICKNESS

DECONTAMINATION
   BT  POLLUTION ABATEMENT
   RT  CONTAMINATION
   RT  DECONTAMINATION EQUIPMENT
   RT  DECONTAMINATION MATERIALS
   RT  PURGING

DECONTAMINATION EQUIPMENT
   NT  DECONTAMINATION KITS
   RT  DECONTAMINATION

DECONTAMINATION KITS
   BT  DECONTAMINATION EQUIPMENT
   BT  KITS

DECONTAMINATION MATERIALS
   BT  MATERIALS
   RT  DECONTAMINATION

DECOUPLING
   BT  SEPARATION

DECOUPLING(INTERACTION)
   BT  INTERACTIONS

DECOYS
   BT  DECEPTION
   NT  ACOUSTIC DECOYS
   NT  INFRARED DECOYS
   NT  RADAR DECOYS

DECREASING
   Use  REDUCTION

DEEP DEPTH
   BT  DEPTH

DEEP DIVING
   BT  DIVING

DEEP OCEANS
   BT  DEEP WATER
   BT  OCEANS
   RT  ABYSSAL ZONES

DEEP SCATTERING LAYERS
   BT  ACOUSTIC REFLECTION
   BT  MARINE BIOLOGY

DEEP SPACE
   BT  SPACE ENVIRONMENTS

DEEP SUBMERGENCE
   BT  UNDERWATER

DEEP SUBMERGENCE RESCUE VEHICLES
   BT  DEEP SUBMERGENCE VEHICLES

DEEP SUBMERGENCE VEHICLES
   BT  UNDERWATER VEHICLES
   NT  DEEP SUBMERGENCE RESCUE VEHICLES

DEEP WATER
   BT  WATER
   NT  DEEP OCEANS

DEER
   BT  MAMMALS

DEFECT ANALYSIS
   BT  DEFECTS(MATERIALS)

DEFECTS(MATERIALS)
   NT  DEFECT ANALYSIS
   NT  INCLUSIONS

DEFENSE IN DEPTH
SN: 01-DEC-1984 - PROTECTIVE MEASURES IN SUCCESSIVE POSITIONS ALONG AXES OF ENEMY ADVANCE, AS OPPOSED TO A SINGLE LINE OF RESISTANCE. DESIGNED TO ABSORB AND PROGRESSIVELY WEAKEN ENEMY POSITIONS.
   BT  COMPUTER SECURITY
   BT  DEFENSE PLANNING
   BT  MILITARY TACTICS
   BT  TACTICAL ANALYSIS

DEFENSE INDUSTRY
SN: 01-OCT-1993 - INDUSTRY INVOLVED RESEARCH, DEVELOPMENT AND PRODUCTION OF THE OFFENSIVE AND DEFENSIVE IMPLEMENTS OF WAR.
   BT  INDUSTRIES
   NT  MUNITIONS INDUSTRY
   RT  DEFENSE SYSTEMS

DEFENSE MECHANISMS(PSYCHOLOGY)
   BT  PSYCHOLOGY

DEFENSE PLANNING
   BT  PLANNING
   NT  DEFENSE IN DEPTH
   NT  MILITARY PLANNING

DEFENSE SUPPRESSION
SN: 01-SEP-1990 - MEASURES TAKEN TO ACTIVELY NEUTRALIZE, DESTROY OR DEGRADE AN ENEMYS DEFENSE SYSTEM.
   BT  MILITARY TACTICS
   BT  SUPPRESSION

DEFENSE SYSTEMS
   NT  AIR DEFENSE
   NT  AIRCRAFT DEFENSE SYSTEMS
   NT  ANTISUBMARINE DEFENSE SYSTEMS
   NT  ANTISWIMMER DEFENSE SYSTEMS
   NT  AREA DEFENSE
   NT  CIVIL DEFENSE
   NT  COUNTERMEASURES
   NT  GUIDED MISSILE DEFENSE SYSTEMS
   NT  HARBOR DEFENSE SYSTEMS
   NT  NATIONAL DEFENSE
   NT  OPTICAL DEFENSE SYSTEMS
   NT  PASSIVE DEFENSE
   NT  PERIMETERS(DEFENSE)
   NT  POINT DEFENSE
   NT  SHIP DEFENSE SYSTEMS
   NT  SPACE DEFENSE
   RT  DEFENSE INDUSTRY
   RT  EARLY WARNING SYSTEMS
   RT  WARNING SYSTEMS

DEFIBRILLATION
SN: 01-SEP-1981 - THE ARREST OF FIBRILLATION OF THE CARDIAC ATRIA OR VENTRICLES; BLUNT DISSECTION OF TISSUE FIBERS ALONG THE PLANES OF CLEAVAGE.
   BT  THERAPY
   RT  CARDIAC ARREST

DEFICIENCIES
   RT  MALNUTRITION

DEFLAGRATION
   BT  COMBUSTION
   RT  FIRES

DEFLECTION
   RT  CAMBER
   RT  DEFLECTION COILS

DEFLECTION COILS
   BT  MAGNET COILS
   RT  DEFLECTION

DEFLECTORS
   NT  FLAME DEFLECTORS
   RT  BAFFLES
   RT  SHIELDING
   RT  SPOILERS

DEFOLIANTS
   BT  CHEMICAL AGENTS
   NT  AGENT ORANGE
   RT  DEFOLIATION
   RT  HERBICIDES

DEFOLIATION
   RT  DEFOLIANTS

DEFORMABLE MIRRORS
SN: 01-JUL-1999
   BT  MIRRORS

DEFORMABLE PROJECTILES
   UF  SKIRTED PROJECTILES
   BT  PROJECTILES

DEFORMATION
SN: CHANGE IN SHAPE OF A BODY CAUSED BY STRESS.
   NT  PLASTIC DEFORMATION
   RT  MATERIAL FORMING

DEGASIFICATION
   BT  SEPARATION
   NT  DEAERATION
   NT  DEOXYGENATION
   NT  OUTGASSING
   NT  VACUUM DEGASSING
   RT  GETTERING

DEGAUSSING
   UF  DEGAUSSING COILS
   BT  DEMAGNETIZATION

DEGAUSSING COILS
   Use  DEGAUSSING

DEGENERATION(PHYSIOLOGY)
SN: 01-APR-2002
   BT  PHYSIOLOGY
   NT  AGING(PHYSIOLOGY)

DEGRADATION
SN: IMPAIRMENT OF SOME PHYSICAL PROPERTY, ESPECIALLY OF MATERIALS OR ORGANISMS. FORBREAKDOWN OF CHEMICALS INTO DISTINCT PARTS, SEE DECOMPOSITION.
   NT  BIODEGRADATION
   NT  CHEMICAL ATTACK(DEGRADATION)
   NT  CORROSION
   NT  DETERIORATION
   NT  PHOTODEGRADATION
   NT  THERMAL DEGRADATION
   RT  AGING(MATERIALS)
   RT  FAILURE(MECHANICS)

DEGREES OF FREEDOM
   BT  COORDINATES
   BT  MOTION
   RT  FACTOR ANALYSIS

DEHUMIDIFIERS
   BT  SEPARATORS
   RT  HUMIDITY

DEHYDRATED FOODS
   UF  DRY FOOD MIXES
   BT  CONCENTRATED FOODS
   NT  FREEZE DRIED FOODS
   RT  DEHYDRATION

DEHYDRATING AGENTS
   Use  DESICCANTS

DEHYDRATION
   BT  DEWATERING
   RT  DEHYDRATED FOODS
   RT  DESICCANTS
   RT  HYDRATION

DEHYDROGENASES
   BT  ENZYMES
   NT  LACTIC DEHYDROGENASE
   NT  PHOSPHATE DEHYDROGENASE
   NT  PHOSPHOGLUCONATE DEHYDROGENASE

DEHYDROGENATION
   BT  CHEMICAL REACTIONS
   NT  HYDROFORMING(CHEMICAL)
   RT  HYDROGENATION

DEICING MATERIALS
   UF  DE-ICING MATERIALS
   BT  MATERIALS
   RT  DEICING SYSTEMS

DEICING SYSTEMS
SN: EQUIPMENT THAT PREVENTS THE FORMATION OFICE ON AIRCRAFT IN FLIGHT. FOR THE PREVENTION OF ICE FORMATION ON OTHER SURFACES, SEE ICE PREVENTION.
   UF  DE-ICING SYSTEMS
   RT  DEICING MATERIALS
   RT  ICE PREVENTION

DEIONIZATION
   BT  SEPARATION
   RT  IONIZATION

DELAMINATION
SN: 01-JUN-1989 - USUALLY A DETERIORATIVE PROCESS INVOLVING SPLITTING OR SEPARATION INTO CONSTITUENT LAYERS, OR ALONG A PLANE OF LAMINATION.
   BT  SEPARATION
   RT  LAMINATES

DELAVAL NOZZLES
   Use  LAVAL NOZZLES

DELAWARE
   BT  UNITED STATES

DELAWARE BAY
   BT  BAYS

DELAWARE RIVER
SN: 01=-SEP-1981 - A RIVER IN THE NORTHEASTERN UNITED STATES THAT ORIGINATES IN THE CATSKILL MOUNTAINS OF NEW YORK AND FLOWS TO THE DELAWARE BAY ON THE ATLANTIC OCEAN.
   BT  RIVERS

DELAY
   BT  TIME INTERVALS
   RT  STOPPING

DELAY CIRCUITS
SN: CIRCUITS IN WHICH THE OUTPUT SIGNAL IS DELAYED BY A SPECIFIED TIME INTERVAL WITHRESPECT TO THE INPUT SIGNAL.
   BT  CIRCUITS

DELAY ELEMENTS(EXPLOSIVE)
   UF  DELAY MIXTURES
   UF  DELAY POWDERS
   BT  EXPLOSIVE TRAINS

DELAY LINES
   NT  ACOUSTIC DELAY LINES
   RT  SHIFT REGISTERS

DELAY MIXTURES
   Use  DELAY ELEMENTS(EXPLOSIVE)

DELAY POWDERS
   Use  DELAY ELEMENTS(EXPLOSIVE)

DELBRUCK SCATTERING
SN: ELASTIC NUCLEAR POTENTIAL SCATTERING OF GAMMA RAYS OWING TO THE FORMATION OF A VIRTUAL ELECTRON-POSITRON PAIR IN THE NUCLEAR POTENTIAL FIELD.
   BT  ELASTIC SCATTERING
   BT  GAMMA RAY SCATTERING

DELCOSINE
   Use  ALKALOIDS

DELINEATORS
   BT  DATA PROCESSING EQUIPMENT

DELINQUENCY
   BT  CRIMINOLOGY
   NT  THEFT

DELIVERY
   NT  AERIAL DELIVERY
   NT  CARRIER ONBOARD DELIVERY
   NT  WEAPON DELIVERY

DELPHI TECHNIQUES
   BT  FORECASTING

DELRIN
   BT  ACETAL RESINS

DELTA FUNCTIONS
SN: 01-OCT-1995
   BT  SPECIAL FUNCTIONS(MATHEMATICS)

DELTA MODULATION
   BT  PULSE MODULATION
   RT  PULSE COMMUNICATIONS

DELTA WINGS
   UF  TRIANGULAR WINGS
   BT  SWEPT WINGS
   NT  CONICAL WINGS

DELTAS
   BT  LANDFORMS
   NT  MEKONG DELTA
   RT  ALLUVIUM

DEMAGNETIZATION
   NT  DEGAUSSING

DEMAND(ECONOMICS)
SN: 01-SEP-1981 - THE QUANTITIES OF GOODS OR OF A SERVICE THAT WOULD BE PURCHASED AT EACH OF VARIOUS POSSIBLE PRICES AT A GIVEN TIME.
   BT  ECONOMICS
   RT  CONSUMPTION

DEMILITARIZATION
   BT  OPERATIONS OTHER THAN WAR
   RT  DEMILITARIZED ZONES
   RT  SUPERCRITICAL WATER OXIDATION

DEMILITARIZED ZONES
   BT  GEOGRAPHIC AREAS
   RT  DEMILITARIZATION

DEMINERALIZATION
   BT  SEPARATION
   NT  WATER SOFTENERS
   RT  DEMINERALIZERS

DEMINERALIZERS
   BT  SEPARATORS
   NT  WATER SOFTENERS
   RT  DEMINERALIZATION

DEMOCRACY
   BT  POLITICAL SCIENCE
   NT  UNITED STATES GOVERNMENT

DEMODULATION
   RT  DECODING
   RT  DEMODULATORS
   RT  HETERODYNING
   RT  INTERMODULATION
   RT  MODULATION

DEMODULATOR TUBES
   Use  DEMODULATORS

DEMODULATORS
   UF  DEMODULATOR TUBES
   UF  DETECTORS (DEMODULATORS)
   NT  CRYSTAL DETECTORS
   NT  DISCRIMINATORS
   NT  MODEMS
   RT  DEMODULATION
   RT  MODULATORS

DEMOGRAPHY
   BT  POPULATION
   RT  CENSUS

DEMOLITION
   NT  UNDERWATER DEMOLITION
   RT  CONSTRUCTION
   RT  DEMOLITION CHARGES
   RT  EXPLOSION EFFECTS

DEMOLITION CHARGES
   BT  EXPLOSIVE CHARGES
   RT  DEMOLITION
   RT  DESTRUCTORS

DENDRIMERS
SN: 01-APR-2001
   BT  POLYMERS

DENDRITIC STRUCTURE
   BT  STRUCTURES

DENGUE
   BT  MOSQUITO BORNE DISEASES
   BT  TROPICAL DISEASES
   BT  VIRUS DISEASES
   RT  DENGUE VIRUS

DENGUE VIRUS
SN: 01-JUN-1989 - THE ETIOLOGIC AGENT OF DENGUE, EXISTING AS TWO IMMUNOLOGICAL TYPES.
   BT  GROUP B ARBOVIRUSES
   RT  DENGUE

DENITRATION
   Use  NITRATION

DENJOY CONJECTURE
   Use  MEASURE THEORY

DENMARK
   BT  EUROPEAN COMMUNITIES
   BT  EUROPEAN UNION
   BT  WESTERN EUROPE
   NT  FAROE ISLANDS

DENSE GASES
   BT  GASES

DENSE INERT METAL EXPLOSIVES
SN: 01-OCT-2006 - Solid explosive mixed in part with powdered heavy metal to enhace effects.
   BT  EXPLOSIVES

DENSIFICATION (SOILS)
   Use  SOIL COMPACTION

DENSIMETERS
   UF  DENSITY SENSITIVE INDICATORS
   UF  HYDROMETERS
   UF  PYCNOMETERS
   BT  MEASURING INSTRUMENTS
   RT  DENSITY

DENSITOMETERS
   BT  MEASURING INSTRUMENTS
   RT  DENSITY
   RT  PYRANOMETERS

DENSITY
   BT  PHYSICAL PROPERTIES
   NT  APPARENT DENSITY
   NT  ATMOSPHERIC DENSITY
   NT  ELECTRON DENSITY
   NT  HIGH DENSITY
   NT  ION DENSITY
   NT  LOW DENSITY
   NT  PACKING DENSITY
   NT  SPECIFIC GRAVITY
   RT  DENSIMETERS
   RT  DENSITOMETERS
   RT  SPECIFIC VOLUME

DENSITY FUNCTIONAL THEORY
SN: 01-OCT-1999
   BT  ADSORPTION
   BT  QUANTUM CHEMISTRY

DENSITY SENSITIVE INDICATORS
   Use  DENSIMETERS

DENTAL CARIES
   BT  ORAL DISEASES

DENTAL ENAMEL
   BT  TEETH

DENTAL EQUIPMENT
   BT  MEDICAL EQUIPMENT

DENTAL IMPLANTOLOGY
   BT  DENTAL SURGERY

DENTAL OVERBITE
   Use  DENTISTRY

DENTAL PERSONNEL
   UF  DENTAL TECHNICIANS
   BT  MEDICAL PERSONNEL
   NT  DENTISTS

DENTAL PLAQUE
   BT  TEETH

DENTAL PROSTHESES
   BT  PROSTHETICS

DENTAL PULP
   BT  TEETH

DENTAL RIDGE
   BT  MOUTH

DENTAL SURGERY
   BT  DENTISTRY
   BT  SURGERY
   NT  DENTAL IMPLANTOLOGY
   RT  ROOT CANAL

DENTAL TECHNICIANS
   Use  DENTAL PERSONNEL

DENTIN
   BT  TEETH

DENTISTRY
   UF  DENTAL OVERBITE
   BT  MEDICINE
   NT  DENTAL SURGERY
   NT  ORTHODONTICS
   NT  PREVENTIVE DENTISTRY
   RT  DENTISTS
   RT  TEETH

DENTISTS
   BT  DENTAL PERSONNEL
   RT  DENTISTRY

DEODORANTS
   Use  TOILET ARTICLES

DEOXIDATION(METALLURGY)
   BT  METALLURGY

DEOXYCORTICOSTERONE
   Use  CORTICOSTEROID AGENTS

DEOXYEPHEDRINE
   Use  AMPHETAMINES

DEOXYGENATION
   BT  DEGASIFICATION

DEOXYRIBONUCLEIC ACIDS
   UF  DNA
   BT  NUCLEIC ACIDS
   NT  RECOMBINANT DNA
   RT  GENES
   RT  NUCLEOTIDYL TRANSFERASES

DEPARTMENT OF DEFENSE
   BT  UNITED STATES GOVERNMENT

DEPARTMENT OF STATE
SN: 01-APR-2007
   BT  UNITED STATES GOVERNMENT

DEPLETED URANIUM
   BT  URANIUM

DEPLETION
   BT  REDUCTION

DEPLOYMENT
   BT  MILITARY TACTICS
   NT  RAPID DEPLOYMENT
   RT  LOGISTICS

DEPOLARIZATION
   BT  POLARITY
   RT  POLARIZATION

DEPOLYMERIZATION
   BT  DISSOCIATION
   RT  POLYMERIZATION

DEPOSITION
   NT  ELECTRODEPOSITION
   NT  VACUUM DEPOSITION
   NT  VAPOR DEPOSITION
   RT  COATINGS
   RT  DEPOSITS
   RT  ELECTROPLATING
   RT  SPUTTERING

DEPOSITS
   NT  COMBUSTION DEPOSITS
   NT  GLACIAL DEPOSITS
   RT  DEPOSITION
   RT  FOULING
   RT  SEDIMENTS
   RT  SLUDGE

DEPRESSED TRAJECTORIES
SN: 01-DEC-1984 - THE FLIGHT PATH OF A BALLISTIC MISSILE FIRED AT AN ANGLE TO THE GROUND SIGNIFICANTLY LOWER THAN STANDARD LAUNCHES.
   BT  BALLISTIC TRAJECTORIES

DEPRESSION
SN: A mental disorder characterized by an all-encompassing low mood accompanied by low self-esteem, and by loss of interest or pleasure in normally enjoyable activities. (March 2011).
   UF  major depressive disorder
   BT  MENTAL DISORDERS
   RT  ANTIDEPRESSANTS

DEPRESSION ANGLES
   BT  ANGLES

DEPRIVATION
   BT  STRESS(PHYSIOLOGY)
   NT  FOOD DEPRIVATION
   NT  SENSORY DEPRIVATION
   NT  SLEEP DEPRIVATION
   NT  SOCIAL DEPRIVATION
   NT  WATER PRIVATION

DEPTH
   NT  DEEP DEPTH
   NT  DEPTH CONTROL
   NT  SHALLOW DEPTH

DEPTH AND ROLL RECORDERS
   BT  RECORDING SYSTEMS

DEPTH BOMBS
   UF  PLUNGE BOMBS
   BT  ANTISUBMARINE AMMUNITION
   BT  ANTISUBMARINE WEAPONS
   BT  BOMBS
   BT  UNDERWATER ORDNANCE

DEPTH CHARGE COMPONENTS
SN: THE VARIOUS COMPONENTS OF DEPTH CHARGES WHEN CONSIDERED AS SEPARATE ENTITIES.
   BT  AMMUNITION COMPONENTS
   BT  DEPTH CHARGES

DEPTH CHARGES
   BT  ANTISUBMARINE AMMUNITION
   BT  ANTISUBMARINE WEAPONS
   BT  EXPLOSIVE CHARGES
   BT  UNDERWATER ORDNANCE
   NT  DEPTH CHARGE COMPONENTS

DEPTH CONTROL
   BT  CONTROL SYSTEMS
   BT  DEPTH
   RT  DEPTH INDICATORS

DEPTH FINDERS
   BT  MEASURING INSTRUMENTS
   RT  DEPTH FINDING

DEPTH FINDING
   BT  POSITION FINDING
   RT  DEPTH FINDERS

DEPTH GAGES
   Use  DEPTH INDICATORS

DEPTH INDICATORS
   UF  DEPTH GAGES
   UF  DEPTHOMETERS
   UF  FATHOMETERS
   BT  INDICATORS
   NT  DRAFT INDICATORS(NAUTICAL)
   RT  DEPTH CONTROL

DEPTHKEEPING
   BT  STATIONKEEPING

DEPTHOMETERS
   Use  DEPTH INDICATORS

DERAILMENT
   BT  ACCIDENTS

DERIVATIVES(MATHEMATICS)
   BT  MATHEMATICS

DERIVED PROTEINS
   Use  PROTEINS(DERIVED)

DERMATITIS
   BT  ALLERGIC DISEASES
   BT  SKIN DISEASES
   NT  ACNE
   NT  ECZEMA
   RT  SKIN(ANATOMY)

DERMATOLOGY
   BT  MEDICINE
   RT  SKIN(ANATOMY)

DERMATOPHYTOSIS
   BT  FUNGUS DISEASES

DESALINATION
   BT  PURIFICATION
   BT  SEPARATION
   RT  REVERSE OSMOSIS
   RT  WATER TREATMENT

DESCENT
   NT  PARACHUTE DESCENTS
   RT  APPROACH

DESCENT TRAJECTORIES
   BT  TRAJECTORIES
   NT  AIR TO SURFACE
   NT  AIR TO UNDERWATER
   RT  ATMOSPHERE ENTRY

DESENSITIZING
   BT  SENSITIZING

DESERT SHIELD OPERATION
   Use  PERSIAN GULF WAR

DESERT STORM OPERATION
   Use  PERSIAN GULF WAR

DESERT TESTS
SN: TESTS CONDUCTED IN DESERTS OR DESERT-LIKE ENVIRONMENTS TO DETERMINE THE EFFECTS OF LOW HUMIDITY, HIGH TEMPERATURE, DUST,SAND, ETC., ON ORDNANCE ITEMS, MATERIALS, PERSONNEL, ETC.
   BT  ENVIRONMENTAL TESTS

DESERTS
   BT  ARID LAND
   BT  LANDFORMS

DESICCANTS
   UF  DEHYDRATING AGENTS
   UF  DRYING AGENTS
   RT  ABSORBERS(MATERIALS)
   RT  DEHYDRATION

DESIGN CRITERIA
SN: 01-OCT-1992 - A STANDARD FOR BASING DECISIONS TO PREDICT AND SOLVE ANTICIPATED PRACTICAL PROBLEMS AT THE ENGINEERING STAGE.
   BT  STANDARDS
   RT  MANAGEMENT ENGINEERING

DESIGN OF EXPERIMENTS
   Use  EXPERIMENTAL DESIGN

DESIGN TO COST
   BT  COSTS
   RT  MANAGEMENT ENGINEERING

DESIGNS(MATHEMATICS)
   Use  COMBINATORIAL ANALYSIS

DESKTOP PUBLISHING
   Use  ELECTRONIC PUBLISHING

DESMOLASES
   Use  CARBON CARBON LYASES

DESORPTION
   BT  SEPARATION
   RT  OUTGASSING
   RT  SORPTION

DESOXYCORTICOSTERONE
   Use  CORTICOSTEROID AGENTS

DESOXYEPHEDRINE
   Use  AMPHETAMINES

DESSERTS
   BT  FOOD

DESTROYER ESCORTS
   BT  ESCORT SHIPS

DESTROYERS
   UF  DD(VESSELS)
   BT  NAVAL VESSELS(COMBATANT)

DESTRUCTION
   NT  ASSURED DESTRUCTION
   RT  CASUALTIES
   RT  DESTRUCTORS

DESTRUCTIVE TESTS
   BT  TEST METHODS

DESTRUCTORS
   BT  EXPLOSIVE CHARGES
   RT  DEMOLITION CHARGES
   RT  DESTRUCTION

DESULFOVIBRIO
   Use  SPIRILLACEAE

DESULFURIZATION
   BT  CHEMICAL REACTIONS

DETECTION
   NT  ACOUSTIC DETECTION
   NT  AIRCRAFT DETECTION
   NT  BIOLOGICAL DETECTION
   NT  BISTATIC DETECTION
   NT  CHANGE DETECTION
   NT  CHEMICAL DETECTION
   NT  EXPLOSIVES DETECTION
   NT  GUIDED MISSILE DETECTION
   NT  INTRUSION DETECTION
   NT  MAGNETIC DETECTION
   NT  MINE DETECTION
   NT  OPTICAL DETECTION
   NT  OVER THE HORIZON DETECTION
   NT  PERSONNEL DETECTION
   NT  REMOTE DETECTION
   NT  SUBMARINE DETECTION
   NT  TARGET ACQUISITION
   NT  TARGET DETECTION
   NT  TARGET DISCRIMINATION
   NT  TARGET RECOGNITION
   NT  TORPEDO DETECTION
   NT  ULTRAVIOLET DETECTION
   NT  WAKE DETECTION
   RT  DETECTORS

DETECTORS
   UF  SENSORS
   NT  ACOUSTIC DETECTORS
   NT  BIOLOGICAL AGENT DETECTORS
   NT  CHEMICAL AGENT DETECTORS
   NT  FIRE DETECTORS
   NT  GAS DETECTORS
   NT  INTRUSION DETECTORS
   NT  LIE DETECTORS
   NT  MAGNETIC DETECTORS
   NT  METAL DETECTORS
   NT  MICROSENSORS
   NT  MOSAICS(DETECTORS)
   NT  MULTISENSORS
   NT  OPTICAL DETECTORS
   NT  ORDNANCE LOCATORS
   NT  PERSONNEL DETECTORS
   NT  PHASE DETECTORS
   NT  REMOTE DETECTORS
   NT  SIDE LOOKING DETECTORS
   NT  SOLIONS
   NT  TOXIC AGENT ALARMS
   NT  UNDERWATER OBJECT LOCATORS
   NT  WAKE DETECTORS
   RT  ANALYZERS
   RT  DETECTION
   RT  LOCATORS
   RT  WARNING SYSTEMS

DETECTORS (DEMODULATORS)
   Use  DEMODULATORS

DETENTE
   BT  EAST WEST RELATIONS
   RT  DISARMAMENT

DETENTS
   BT  LOCKING FASTENER DEVICES

DETERGENTS
   BT  CLEANING COMPOUNDS

DETERIORATION
   BT  DEGRADATION
   NT  BIODETERIORATION
   NT  FOOD DETERIORATION
   NT  TROPICAL DETERIORATION
   RT  ATROPHY

DETERMINANTS(MATHEMATICS)
   UF  PERMANENTS
   BT  ALGEBRA

DETERMINATION
   NT  GEOLOGIC AGE DETERMINATION

DETERMINATION (CHEMICAL)
   Use  CHEMICAL ANALYSIS

DETERRENCE
   BT  STRATEGY
   RT  ELECTRIC FENCES

DETONATING CORD
   UF  CORDTEX
   UF  EXPLOSIVE CABLES
   UF  LINE CHARGES(FLEXIBLE)
   UF  PRIMACORD
   BT  EXPLOSIVE CHARGES

DETONATING FUZES
   Use  FUZES(ORDNANCE)

DETONATION WAVES
SN: MECHANICAL WAVES THAT PRECEDE THE ADVANCING REACTION ZONE IN A DETONATING MATERIAL. FOR STUDIES OF THE WAVES PRODUCED IN MATERIALS OR OTHER THAN THOSE REACTING, SEE SHOCK WAVES.
   BT  ELASTIC WAVES

DETONATIONS
SN: CHEMICAL REACTIONS IN MATERIALS THAT PRODUCE VIGOROUS EVOLUTION OF HEAT AND SPARKS OR FLAME AND MOVE THROUGH THE MATERIALS AT A SPEED GREATER THAN THAT OF SOUND. FOR STUDIES OF THE ENERGY RELEASED BY DETONATIONS AND THE EFFECTS THEREOF, SEEEXPLOSIONS.
   BT  EXPLOSIONS
   NT  SYMPATHETIC DETONATIONS
   RT  DETONATORS

DETONATORS
   UF  BLASTING CAPS
   BT  EXPLOSIVES INITIATORS
   NT  ELECTRIC DETONATORS
   RT  DETONATIONS
   RT  SODIUM AZIDES

DETOXIFICATION
   BT  THERAPY
   RT  TOXICITY

DETUNING
   RT  TUNING

DEUTERIUM
   BT  HYDROGEN
   BT  ODD ODD NUCLEI
   BT  STABLE ISOTOPES
   RT  DEUTERIUM COMPOUNDS
   RT  DEUTERONS

DEUTERIUM COMPOUNDS
   BT  HYDROGEN COMPOUNDS
   NT  HEAVY WATER
   RT  DEUTERIUM

DEUTERIUM FLUORIDE LASERS
SN: 01-JAN-2001
   BT  CHEMICAL LASERS
   BT  HIGH ENERGY LASERS

DEUTERIUM ION CONCENTRATION
   BT  CATIONS
   BT  CONCENTRATION(COMPOSITION)

DEUTERIUM OXIDE
   Use  HEAVY WATER

DEUTEROMYCETES(IMPERFECT FUNGI)
   BT  FUNGI
   NT  BLASTOMYCES
   NT  CANDIDA
   NT  CRYPTOCOCCUS
   NT  FUSARIUM
   NT  HELMINTHOSPORIUM
   NT  HISTOPLASMA
   NT  PIRICULARIA

DEUTERON BEAMS
   BT  PARTICLE BEAMS
   RT  DEUTERONS

DEUTERON BOMBARDMENT
   BT  IRRADIATION
   BT  PARTICLE ACCELERATOR TECHNIQUES

DEUTERON CAPTURE
   BT  DEUTERON REACTIONS

DEUTERON CROSS SECTIONS
   BT  NUCLEAR CROSS SECTIONS

DEUTERON REACTIONS
   BT  NUCLEAR REACTIONS
   NT  DEUTERON CAPTURE
   RT  DEUTERONS

DEUTERONS
   BT  CHARGED PARTICLES
   BT  NUCLEAR PARTICLES
   RT  DEUTERIUM
   RT  DEUTERON BEAMS
   RT  DEUTERON REACTIONS

DEVELOPING NATIONS
   BT  NATIONS

DEVELOPMENTAL BIOLOGY
SN: The study of the processes by which organisms grow and develop. Modern developmental biology studies the genetic control of cell growth, differentiation and "morphogenesis", which is the process that gives rise to tissues, organs and anatomy. (July 2011)
   UF  evolutionary developmental biology
   BT  BIOLOGY
   NT  EMBRYOLOGY
   NT  TERATOLOGY
   RT  MORPHOLOGY(BIOLOGY)

DEVELOPMENTAL PSYCHOLOGY
SN: 01-DEC-1984 - THAT BRANCH OF PSYCHOLOGY THAT DEALS WITH CHANGES IN BEHAVIOR OCCURING WITH CHANGES IN AGE.
   BT  PSYCHOLOGY
   RT  BEHAVIORAL SCIENCES

DEVELOPMENTAL TESTS
SN: 01-APR-2006
   BT  PERFORMANCE TESTS

DEW
   BT  ATMOSPHERIC CONDENSATION
   NT  FROST

DEW POINT
   BT  HUMIDITY

DEWAR FLASKS
   BT  FLASKS

DEWATERING
SN: 01-OCT-1995
   BT  DRYING
   BT  SEPARATION
   NT  DEHYDRATION
   RT  WATER RECLAMATION

DEXTRAN
   BT  POLYSACCHARIDES

DEXTRANSUCRASE
   BT  ENZYMES

DEXTRINS
   UF  STARCH GUM
   BT  POLYSACCHARIDES

DEXTROAMPHETAMINE SULFATE
   Use  AMPHETAMINES

DIABETES
   UF  DIABETES INSIPIDUS
   UF  DIABETES MELLITUS
   UF  HEMOCHROMATOSIS
   BT  METABOLIC DISEASES
   RT  CARBOHYDRATE METABOLISM
   RT  INSULIN

DIABETES INSIPIDUS
   Use  DIABETES

DIABETES MELLITUS
   Use  DIABETES

DIAGNOSIS(GENERAL)
   NT  COMPUTER AIDED DIAGNOSIS
   NT  DIAGNOSIS(MEDICINE)
   NT  LASER DIAGNOSTICS
   NT  PLASMA DIAGNOSTICS
   RT  DIAGNOSTIC EQUIPMENT

DIAGNOSIS(MEDICINE)
SN: IDENTIFICATION OF A DISEASE FROM ITS SIGNS OR SYMPTOMS. FOR DETERMINATION OF GENERAL STATE OF HEALTH, ETC., SEE MEDICALEXAMINATION.
   BT  DIAGNOSIS(GENERAL)
   NT  ACUPUNCTURE
   NT  BIOPSY
   NT  BIOTELEMETRY
   NT  IMMUNOASSAY
   NT  LASER MEDICAL DIAGNOSIS
   NT  LIVER FUNCTION TESTS
   NT  LUNG FUNCTION TESTS
   NT  MAGNETIC RESONANCE IMAGING
   NT  MEDICAL SCREENING
   NT  POSITRON EMISSION TOMOGRAPHY
   NT  PRENATAL DIAGNOSIS
   NT  SERODIAGNOSIS
   NT  SIGNS AND SYMPTOMS
   NT  X RAY DIAGNOSTICS
   RT  CANCER SCREENING
   RT  CLINICAL MEDICINE
   RT  ELECTROCARDIOGRAPHY
   RT  ELECTROENCEPHALOGRAPHY
   RT  MEDICAL COMPUTER APPLICATIONS

DIAGNOSTIC AGENTS
   BT  DRUGS
   NT  CONTRAST MEDIA(MEDICINE)

DIAGNOSTIC EQUIPMENT
   RT  DIAGNOSIS(GENERAL)

DIAGRAMS
   BT  DOCUMENTS
   NT  PHASE DIAGRAMS
   NT  SCHEMATIC DIAGRAMS
   NT  WIRING DIAGRAMS
   RT  CHARTS
   RT  VISUAL AIDS

DIALECTS
   BT  SPEECH

DIALYSIS
   BT  SEPARATION
   NT  ELECTRODIALYSIS

DIAMAGNETIC PROPERTIES
   Use  MAGNETIC PROPERTIES

DIAMAGNETISM
   BT  MAGNETIC PROPERTIES
   RT  CURIE TEMPERATURE

DIAMETERS
   BT  SIZES(DIMENSIONS)

DIAMINE OXIDASE
   UF  HISTAMINASE
   BT  OXIDOREDUCTASES

DIAMOND FILMS
SN: 01-JUL-1998
   BT  DIAMONDS
   BT  FILMS

DIAMOND WHEELS
   BT  GRINDING WHEELS

DIAMONDS
   UF  INDUSTRIAL DIAMONDS
   BT  CARBON
   BT  GEMS(MINERALS)
   NT  DIAMOND FILMS

DIAPAUSE
   BT  DORMANCY
   RT  LIFE CYCLES

DIAPHRAGMS(ANATOMY)
   BT  RESPIRATORY SYSTEM

DIAPHRAGMS(MECHANICS)
   BT  MECHANICAL COMPONENTS

DIARRHEA
   BT  SIGNS AND SYMPTOMS
   RT  GASTROINTESTINAL DISEASES

DIASTASES
   Use  GLYCOSIDE HYDROLASES

DIATHERMY
SN: 01-NOV-1980 - LOCAL ELEVATION OF TEMPERATURE IN TISSUES PRODUCED BY A SPECIAL FORM OF HIGH FREQUENCY CURRENT FOR THERAPEUTIC PURPOSES.
   BT  THERAPY
   RT  ELECTROTHERAPY

DIATOMACEOUS EARTH
SN: 01-NOV-1980 - A YELLOW, WHITE, OR LIGHT GRAY, SILICEOUS, POROUS DEPOSIT MADE OF THE OPALINE SHELLS OF DIATOMS. USED AS A FILTER AID, PAINT FILLER, ABSORBENT, ABRASIVE, AND THERMAL INSULATOR.
   BT  DIATOMS
   BT  SOILS

DIATOMIC MOLECULES
   BT  MOLECULES

DIATOMS
SN: 01-JAN-1998
   BT  ALGAE
   NT  DIATOMACEOUS EARTH

DIAZEPAM
SN: 01-NOV-1980 - A SKELETAL MUSCLE RELAXANT, SEDATIVE ANDTRANQUILIZER.
   UF  VALIUM
   BT  SKELETAL MUSCLE RELAXANTS
   BT  TRANQUILIZERS

DIAZINON
SN: 01-MAY-1983 - A LIGHT AMBER TO DARK BROWN LIQUID WITH A BOILING POINT OF 83-84 DEGREES C; USEDAS AN INSECTICIDE FOR SOIL AND HOUSEHOLD PESTS; AS AN INSECTICIDE AND NEMATICIDE FOR FRUITS AND VEGETABLES.
   BT  ESTERS
   BT  INSECTICIDES
   BT  NITROGEN HETEROCYCLIC COMPOUNDS

DIAZO COMPOUNDS
   BT  ORGANIC NITROGEN COMPOUNDS
   NT  HYDRAZOIC ACID

DIAZOMIDE
   Use  HYDRAZOIC ACID

DIBASIC ORGANIC ACIDS
   BT  ORGANIC ACIDS
   NT  SEBACIC ACID

DIBORANES
   BT  BORANES

DICHLORODIFLUOROMETHANE
   BT  FLUORINATED HYDROCARBONS

DICHROISM
   BT  LIGHT TRANSMISSION
   BT  PLEOCHROISM
   RT  PHOTOELASTICITY

DICTIONARIES
   UF  GLOSSARIES
   BT  DOCUMENTS
   RT  WORD LISTS
   RT  WORDS(LANGUAGE)

DIE CASTING
   BT  CASTING

DIEGO GARCIA
SN: 01-OCT-1991 - ISOLATED ISLAND IN THE INDIAN OCEAN.
   BT  INDIAN OCEAN ISLANDS

DIELDRIN
   BT  HALOGENATED HYDROCARBONS
   BT  INSECTICIDES

DIELECTRIC AMPLIFIERS
   BT  AMPLIFIERS
   BT  DIELECTRICS

DIELECTRIC FILMS
   BT  DIELECTRICS
   BT  FILMS

DIELECTRIC MATERIALS
   Use  DIELECTRICS

DIELECTRIC PROPERTIES
   BT  DIELECTRICS
   BT  ELECTRICAL PROPERTIES
   NT  DIELECTRIC STRENGTH
   NT  ELECTRIC DOUBLE LAYER

DIELECTRIC RECORDING SYSTEMS
   BT  DIELECTRICS
   BT  ELECTRONIC RECORDING SYSTEMS

DIELECTRIC STRENGTH
   BT  DIELECTRIC PROPERTIES

DIELECTRIC WAVEGUIDES
   BT  DIELECTRICS
   BT  WAVEGUIDES

DIELECTRICS
   UF  DIELECTRIC MATERIALS
   NT  DIELECTRIC AMPLIFIERS
   NT  DIELECTRIC FILMS
   NT  DIELECTRIC PROPERTIES
   NT  DIELECTRIC RECORDING SYSTEMS
   NT  DIELECTRIC WAVEGUIDES
   NT  ELECTRETS

DIELS-ALDER REACTIONS
   Use  DIENE SYNTHESIS

DIENE SYNTHESIS
   UF  DIELS-ALDER REACTIONS
   BT  SYNTHESIS(CHEMISTRY)
   RT  DIENES

DIENES
   BT  ALKENES
   NT  BUTADIENES
   NT  PENTADIENES
   RT  DIENE SYNTHESIS

DIES
   BT  CUTTING TOOLS

DIESEL ENGINES
   BT  COMPRESSION IGNITION ENGINES
   BT  RECIPROCATING ENGINES

DIESEL FUELS
   BT  FUELS
   BT  PETROLEUM PRODUCTS
   RT  CETANE NUMBER

DIET
   NT  NUTRIENT ANALYSIS
   RT  DIETICIANS
   RT  FOOD DEPRIVATION
   RT  WEIGHT REDUCTION

DIETETICS
   BT  MEDICINE

DIETICIANS
   BT  FOOD SERVICE PERSONNEL
   RT  DIET

DIFFERENCE EQUATIONS
   BT  FINITE DIFFERENCE THEORY
   RT  DIFFERENTIAL EQUATIONS

DIFFERENCE FREQUENCY
   BT  FREQUENCY

DIFFERENTIAL ANALYZERS
   BT  ANALYZERS
   NT  DIGITAL DIFFERENTIAL ANALYZERS

DIFFERENTIAL CROSS SECTIONS
   BT  SCATTERING CROSS SECTIONS

DIFFERENTIAL EQUATIONS
   UF  BEAM EQUATIONS
   UF  COEFFICIENT DETERMINATION
   UF  GRADIENT EQUATION
   UF  HILL'S EQUATION
   UF  LIMIT CYCLES
   UF  PENDULUM TYPE EQUATIONS
   UF  PICARD'S METHOD
   BT  EQUATIONS
   BT  MATHEMATICAL ANALYSIS
   BT  REAL VARIABLES
   NT  BOUNDARY VALUE PROBLEMS
   NT  EIGENVALUES
   NT  LINEAR DIFFERENTIAL EQUATIONS
   NT  NONLINEAR DIFFERENTIAL EQUATIONS
   NT  PARTIAL DIFFERENTIAL EQUATIONS
   RT  DIFFERENCE EQUATIONS

DIFFERENTIAL GAMES
   Use  GAME THEORY

DIFFERENTIAL GEOMETRY
   UF  CONSERVATION LAWS(MATHEMATICS)
   UF  EXTERIOR DIFFERENTIAL SYSTEMS
   BT  GEOMETRY
   NT  CURVATURE
   NT  GEODESICS
   NT  LIE GROUPS
   NT  SPINORS

DIFFERENTIAL PULSE CODE MODULATION
   BT  PULSE CODE MODULATION

DIFFERENTIAL SCANNING CALORIMETRY
SN: 01-JUL-2000
   BT  CALORIMETRY

DIFFERENTIAL THERMAL ANALYSIS
   BT  THERMAL ANALYSIS

DIFFERENTIAL TOPOLOGY
   BT  TOPOLOGY

DIFFERENTIALS(MECHANICAL)
   BT  VEHICLE CHASSIS COMPONENTS

DIFFERENTIATING CIRCUITS
   BT  CIRCUITS

DIFFRACTION
   NT  DIFFRACTION ANALYSIS
   NT  ELECTRON DIFFRACTION
   NT  NEUTRON DIFFRACTION
   NT  SPECTRA
   NT  WAVEFRONTS
   NT  X RAY DIFFRACTION
   RT  DIFFRACTOMETERS
   RT  DISTORTION
   RT  REFLECTION
   RT  REFRACTION
   RT  SCATTERING

DIFFRACTION ANALYSIS
   BT  DIFFRACTION
   BT  OPTICAL ANALYSIS

DIFFRACTION GRATINGS
   Use  GRATINGS(SPECTRA)

DIFFRACTOMETERS
   BT  MEASURING INSTRUMENTS
   RT  DIFFRACTION

DIFFUSE REFLECTION
   BT  REFLECTION

DIFFUSERS
   NT  EXHAUST DIFFUSERS
   NT  HYPERSONIC DIFFUSERS
   NT  SUBSONIC DIFFUSERS
   NT  SUPERSONIC DIFFUSERS
   RT  DIFFUSION

DIFFUSION
   NT  GASEOUS DIFFUSION SEPARATION
   NT  OSMOSIS
   NT  PERFUSION
   NT  THERMAL DIFFUSION
   NT  TURBULENT DIFFUSION
   RT  DIFFUSERS
   RT  DIFFUSIVITY

DIFFUSION BONDING
   BT  BONDING

DIFFUSION COATING
   BT  COATINGS
   NT  CHROMIZING

DIFFUSION COATINGS
   BT  COATINGS

DIFFUSION COEFFICIENT
   BT  COEFFICIENTS
   BT  TRANSPORT PROPERTIES

DIFFUSION PUMPS
   BT  VACUUM PUMPS

DIFFUSIVITY
   BT  PHYSICAL PROPERTIES
   RT  DIFFUSION

DIGESTION(BIOLOGY)
   BT  PHYSIOLOGY
   NT  METABOLITES
   RT  DIGESTIVE SYSTEM
   RT  GASTRIC JUICE
   RT  MALABSORPTION SYNDROMES

DIGESTIVE SYSTEM
   BT  ANATOMY
   NT  ESOPHAGUS
   NT  GASTROINTESTINAL SYSTEM
   NT  MOUTH
   NT  THROAT
   RT  DIGESTION(BIOLOGY)
   RT  GASTROINTESTINAL DISEASES

DIGGING
   Use  EXCAVATION

DIGITAL CAMERAS
SN: 01-APR-1998
   BT  CAMERAS

DIGITAL COMBINERS
   BT  DIGITAL SYSTEMS
   BT  SHIFT REGISTERS

DIGITAL COMMUNICATIONS
SN: 01-SEP-1981 - A SYSTEM OF TELECOMMUNICATIONS EMPLOYINGA NOMINALLY DISCONTINUOUS SIGNAL THAT CHANGES IN FREQUENCY, AMPLITUDE, OR POLARITY.
   BT  TELECOMMUNICATIONS

DIGITAL COMPUTERS
SN: PER COMMENT FROM G. CLARK 4-11-11, THIS TERM IS TO BE "RETIRED"/CTHORN
   BT  COMPUTERS
   BT  DIGITAL SYSTEMS
   NT  DIGITAL DIFFERENTIAL ANALYZERS

DIGITAL DIFFERENTIAL ANALYZERS
   BT  DIFFERENTIAL ANALYZERS
   BT  DIGITAL COMPUTERS

DIGITAL FILTERS
   BT  DIGITAL SYSTEMS
   BT  ELECTRIC FILTERS

DIGITAL IMAGES
SN: 01-APR-2007
   BT  DIGITAL SYSTEMS
   BT  IMAGES
   NT  DIGITAL MAPS

DIGITAL MAPS
   BT  DIGITAL IMAGES
   BT  MAPS

DIGITAL PHOTOGRAPHY
SN: 01-APR-1998
   BT  PHOTOGRAPHY

DIGITAL RECORDING SYSTEMS
   BT  DIGITAL SYSTEMS
   BT  RECORDING SYSTEMS

DIGITAL SIMULATION
   BT  COMPUTERIZED SIMULATION

DIGITAL SYSTEMS
   NT  BYTE FUNCTIONAL MODULES
   NT  DIGITAL COMBINERS
   NT  DIGITAL COMPUTERS
   NT  DIGITAL FILTERS
   NT  DIGITAL IMAGES
   NT  DIGITAL RECORDING SYSTEMS
   RT  ANALOG SYSTEMS

DIGITAL TO ANALOG CONVERTERS
   BT  CONVERTERS
   BT  INPUT OUTPUT DEVICES

DIGITALIS
   BT  CARDIAC GLYCOSIDES

DIGITIZERS
   Use  ANALOG TO DIGITAL CONVERTERS

DIGITOXIN
   BT  CARDIAC GLYCOSIDES

DIHEDRAL ANGLE
   BT  ANGLES

DIKES
   BT  EMBANKMENTS
   RT  FLOOD CONTROL

DILATOMETERS
   BT  MEASURING INSTRUMENTS

DILUENTS
   NT  PAINT THINNERS
   RT  SOLVENTS

DILUTION
   BT  CONCENTRATION(COMPOSITION)
   RT  DISSOLVING
   RT  SOLVENTS

DIMERS
   BT  POLYMERS

DIMETHYL HYDRAZINE (1-1)
   Use  DIMETHYLHYDRAZINES

DIMETHYLCYCLOHEXENE
   BT  CYCLOHEXENES

DIMETHYLHYDRAZINES
SN: 01-SEP-1981 - A FLAMMABLE, HIGHLY TOXIC, COLORLESS LIQUID USED AS A STABILIZER FOR ORGANIC PEROXIDE FUEL ADDITIVES.
   UF  DIMETHYL HYDRAZINE (1-1)
   BT  METHYL HYDRAZINES

DINING
   RT  DINING HALLS

DINING HALLS
   BT  BUILDINGS
   RT  DINING

DINOFLAGELLATA
   BT  ALGAE
   BT  PROTOZOA
   NT  PFIESTERIA

DIODE LASERS
SN: 01-OCT-1995
   UF  LASER DIODES
   BT  SEMICONDUCTOR LASERS

DIODE TRANSISTOR LOGIC
   BT  LOGIC CIRCUITS

DIODES
   BT  ELECTRONIC EQUIPMENT
   NT  DIODES(ELECTRON TUBES)
   NT  MESA DIODES
   NT  SEMICONDUCTOR DIODES

DIODES(ELECTRON TUBES)
   UF  DOUBLE DIODES
   BT  DIODES
   BT  ELECTRON TUBES

DIOXANES
   BT  OXYGEN HETEROCYCLIC COMPOUNDS

DIOXIDES
   BT  OXIDES
   NT  CARBON DIOXIDE
   NT  LEAD DIOXIDE
   NT  NITROGEN DIOXIDE
   NT  SILICON DIOXIDE
   NT  THORIUM DIOXIDE
   NT  TITANIUM DIOXIDE

DIOXINS
SN: 01-NOV-1980 - HETEROCYCLIC HYDROCARBONS.
   BT  OXYGEN HETEROCYCLIC COMPOUNDS

DIP COATING
   BT  COATINGS

DIPHENYLHYDANTOIN
   Use  HYDANTOINS

DIPLEXERS
   BT  TRANSMIT RECEIVE TUBES

DIPLOCOCCUS
   BT  LACTOBACILLACEAE
   NT  DIPLOCOCCUS PNEUMONIAE

DIPLOCOCCUS PNEUMONIAE
   UF  PNEUMOCOCCUS
   BT  DIPLOCOCCUS
   RT  PNEUMONIA

DIPLOID CELLS
   BT  CELLS(BIOLOGY)

DIPLOMACY
SN: 01-APR-2007
   BT  INTERNATIONAL POLITICS

DIPLOMATS
   BT  FOREIGN SERVICE OFFICERS

DIPODOMYS
   Use  RODENTS

DIPOLAR IONS
SN: 01-OCT-1997 - MOLECULAR IONS HAVING BOTH POSITIVE AND NEGATIVE COMPONENTS.
   UF  ZWITTERIONS
   BT  MOLECULAR IONS

DIPOLE ANTENNAS
   BT  ANTENNAS
   RT  DIPOLES
   RT  YAGI ANTENNAS

DIPOLE MOMENTS
   BT  MOMENTS

DIPOLES
   NT  MAGNETIC DIPOLES
   RT  DIPOLE ANTENNAS

DIPTERA
   UF  BLOWFLIES
   UF  GNATS
   UF  MIDGES
   UF  PHORMIA
   UF  TABANIDAE
   BT  INSECTS
   NT  CULICIDAE
   NT  CULICOIDES
   NT  DROSOPHILIDAE
   NT  MUSCIDAE
   RT  GNATHOSTOMIASIS

DIRAC DELTA FUNCTIONS
   Use  SPECIAL FUNCTIONS(MATHEMATICS)

DIRECT CURRENT
   UF  DC (CURRENT)
   BT  ELECTRIC CURRENT

DIRECT METHANOL FUEL CELLS
SN: 01-JAN-2003
   BT  FUEL CELLS

DIRECT WAVES(RADIO WAVES)
SN: 01-SEP-1981 - A RADIO WAVE THAT IS PROPAGATED DIRECTLYTHROUGH SPACE FROM TRANSMITTER TO RECEIVER WITHOUT BEING REFRACTED BY THE IONOSPHERE.
   BT  RADIO WAVES

DIRECTED ENERGY WEAPONS
SN: 01-DEC-1984 - NONNUCLEAR WEAPON SYSTEMS UTILIZING HIGHENERGY OR PARTICLE BEAMS.
   BT  RADIATION WEAPONS
   NT  LASER WEAPONS
   NT  PARTICLE BEAM WEAPONS

DIRECTION FINDING
SN: THE DETERMINATION OF THE DIRECTION FROM WHICH A SIGNAL ORIGINATES. ALSO THE RELATIVE POSITION OF, OR DIRECTION TAKEN BY, AN AIRCRAFT, BOMB, ETC., WITH RESPECT TO A POINT AND LINE OF REFERENCE IN A HORIZONTAL PLANE.
   BT  POSITION FINDING
   NT  DIRECTION FINDING STATIONS
   NT  RADIO DIRECTION FINDERS
   RT  BEARING(DIRECTION)
   RT  ORIENTATION(DIRECTION)

DIRECTION FINDING STATIONS
   BT  DIRECTION FINDING
   BT  STATIONS

DIRECTIONAL
   BT  ORIENTATION(DIRECTION)
   NT  OMNIDIRECTIONAL

DIRECTIONAL ANTENNAS
   BT  ANTENNAS
   NT  BACKFIRE ANTENNAS
   NT  HELICAL ANTENNAS
   NT  LOOP ANTENNAS
   NT  NUTATING ANTENNAS
   NT  PARABOLIC ANTENNAS
   NT  RADAR ANTENNAS
   NT  SLOT ANTENNAS
   NT  STEERABLE ANTENNAS
   NT  YAGI ANTENNAS

DIRECTIVES
SN: 01-OCT-1993
   BT  MILITARY PUBLICATIONS

DIRECTORIES
   BT  DOCUMENTS
   NT  INDEXES
   NT  MENU

DIRICHLET INTEGRAL
   BT  INTEGRALS

DIRIGIBLES
   Use  AIRSHIPS

DIRT
   BT  SOILS
   RT  DUST
   RT  IMPURITIES

DISACCHARIDES
   UF  ISOMALTOSE
   BT  SUGARS
   NT  LACTOSE
   NT  SUCROSE
   NT  TREHALOSE

DISARMAMENT
   BT  ARMS CONTROL
   BT  POLITICAL SCIENCE
   RT  DETENTE

DISASSEMBLY
   RT  ASSEMBLY

DISASTER RELIEF
   Use  HUMANITARIAN ASSISTANCE

DISASTERS
   BT  EMERGENCIES
   NT  NATURAL DISASTERS
   RT  CIVIL DEFENSE

DISBURSEMENTS
SN: 01-APR-1998
   BT  PAYMENT
   RT  MONEY

DISCHARGE LAMPS
   BT  LAMPS
   NT  ARC LAMPS
   NT  FLASH LAMPS
   NT  KRYPTON LAMPS
   NT  MERCURY LAMPS
   NT  THALLIUM LAMPS
   NT  XENON LAMPS

DISCHARGE TUBES
   BT  ELECTRON TUBES
   NT  IGNITRONS
   NT  NEON TUBES
   NT  THYRATRONS
   NT  TRANSMIT RECEIVE TUBES

DISCHARGES (ELECTRICAL)
   Use  ELECTRIC DISCHARGES

DISCOMYCETES
   BT  FUNGI
   NT  SCLEROTINIA

DISCONE ANTENNAS
   BT  CONICAL ANTENNAS

DISCONNECT FITTINGS
   BT  FITTINGS

DISCONTINUITIES
   BT  SEPARATION
   NT  AIR GAPS
   RT  CONTINUITY

DISCRETE ADDRESS BEACON SYSTEMS
   BT  AIR TRAFFIC CONTROL SYSTEMS
   BT  RADAR BEACONS

DISCRETE DISTRIBUTION
   BT  DISTRIBUTION

DISCRETE FOURIER TRANSFORMS
   BT  FOURIER TRANSFORMATION

DISCRETE HARMONIC FUNCTIONS
   Use  FUNCTIONS(MATHEMATICS)

DISCRIMINANT ANALYSIS
SN: 01-APR-2004
   BT  STATISTICAL ANALYSIS

DISCRIMINANTS
   Use  ALGEBRA

DISCRIMINATE ANALYSIS
SN: A STATISTICAL PROCESS THAT LINKS VARIATIONS IN A CLASS OF ENTITIES TO THEIR CLASSIFICATION.
   BT  CLASSIFICATION
   BT  DECISION THEORY

DISCRIMINATION
   NT  BIAS
   NT  GENDER DISCRIMINATION
   NT  PITCH DISCRIMINATION
   NT  RACIAL DISCRIMINATION
   NT  TARGET DISCRIMINATION
   RT  ACUITY

DISCRIMINATORS
SN: DEVICES IN WHICH THE MAGNITUDE AND POLARITY OF THE OUTPUT VOLTAGE DEPEND ON THE DIFFERENCE BETWEEN THE INPUT SIGNAL AND EITHER A STANDARD OR ANOTHER SIGNAL.
   BT  DEMODULATORS
   NT  PULSE DISCRIMINATORS

DISEASE CARRIERS
   Use  DISEASE VECTORS

DISEASE VECTORS
   UF  CARRIERS(DISEASE)
   UF  DISEASE CARRIERS
   UF  VECTORS(EPIDEMIOLOGY)
   BT  ETIOLOGY
   RT  PATHOGENIC MATERIALS

DISEASES
SN: USE OF A MORE SPECIFIC TERM IS RECOMMENDED.
   NT  ALCOHOLISM
   NT  ALLERGIC DISEASES
   NT  ANIMAL DISEASES
   NT  ARTHROPOD BORNE DISEASES
   NT  AUTOIMMUNE DISEASES
   NT  BLOOD DISEASES
   NT  ENZOOTIC
   NT  EPIDEMICS
   NT  EPIZOOTIC
   NT  EYE DISEASES
   NT  FIBROSIS
   NT  GASTROINTESTINAL DISEASES
   NT  GENETIC DISEASES
   NT  GENITAL DISEASES
   NT  ILLNESS
   NT  INFECTIOUS DISEASES
   NT  INTEGUMENTARY DISEASES
   NT  KIDNEY DISEASES
   NT  LIVER DISEASES
   NT  LYMPHOCYTOSIS
   NT  MENTAL DISORDERS
   NT  METABOLIC DISEASES
   NT  MUSCULOSKELETAL DISEASES
   NT  NEOPLASMS
   NT  NERVOUS SYSTEM DISEASES
   NT  OCCUPATIONAL DISEASES
   NT  ORAL DISEASES
   NT  PANCREATIC DISEASES
   NT  RADIATION SICKNESS
   NT  RESPIRATORY DISEASES
   NT  RHEUMATIC DISEASES
   NT  TOXIC DISEASES
   NT  TROPICAL DISEASES
   NT  VASCULAR DISEASES
   NT  ZOONOTIC DISEASES
   RT  ETIOLOGY
   RT  PATHOGENIC MICROORGANISMS

DISHWASHERS
   Use  KITCHEN EQUIPMENT AND SUPPLIES

DISHWASHING COMPOUNDS
   BT  CLEANING COMPOUNDS

DISINFECTION
   BT  HYGIENE
   BT  THERAPY
   RT  STERILIZATION

DISINTEGRATION
   BT  FAILURE(MECHANICS)

DISK BRAKES
   BT  BRAKES

DISK RECORDING SYSTEMS
   BT  ELECTRONIC RECORDING SYSTEMS

DISKS
   BT  CONVEX BODIES
   BT  GEOMETRIC FORMS

DISLOCATIONS
   RT  DISPLACEMENT

DISPENSARIES
   BT  HEALTH CARE FACILITIES

DISPENSERS
   NT  CHAFF DISPENSERS
   RT  EJECTORS
   RT  SPRAYERS

DISPERSING
   BT  SEPARATION
   RT  ASSIMILATION
   RT  CLUSTERING
   RT  DISPERSIONS
   RT  SCATTERING

DISPERSION HARDENING
   UF  PRECIPITATION HARDENING
   BT  HARDENING

DISPERSION RELATIONS
   BT  SPATIAL DISTRIBUTION

DISPERSIONS
   NT  COLLOIDS
   NT  EMULSIONS
   NT  FOG
   NT  SMOG
   NT  SMOKE
   RT  DISPERSING

DISPLACEMENT
   RT  DISLOCATIONS

DISPLACEMENT REACTIONS
   BT  SUBSTITUTION REACTIONS

DISPLAY SYSTEMS
   NT  ALPHANUMERIC DISPLAYS
   NT  CALLIGRAPHIC DISPLAYS
   NT  COLOR DISPLAYS
   NT  COMPUTER GRAPHICS
   NT  DATA DISPLAYS
   NT  FLAT PANEL DISPLAYS
   NT  GROUP DISPLAYS
   NT  HEAD UP DISPLAYS
   NT  HELMET MOUNTED DISPLAYS
   NT  LIQUID CRYSTAL DISPLAY SYSTEMS
   NT  MATRIX DISPLAYS
   NT  MOVING TARGET INDICATORS
   NT  PLAN POSITION INDICATORS
   NT  SCREENS(DISPLAYS)
   NT  STEREOSCOPIC DISPLAY SYSTEMS
   NT  TARGET POSITION INDICATORS
   NT  TELEVISION DISPLAY SYSTEMS
   NT  VIEWERS
   RT  CATHODE RAY TUBE SCREENS
   RT  CONSOLES

DISPOSABLE EQUIPMENT
   RT  REPLACEMENT

DISPOSAL
   NT  EXPLOSIVE ORDNANCE DISPOSAL
   NT  GARBAGE DISPOSAL
   NT  WASTE DISPOSAL
   RT  REMOVAL

DISPROPORTIONATION
   BT  OXIDATION REDUCTION REACTIONS

DISSECTION
   BT  CUTTING
   RT  AUTOPSY

DISSERTATIONS
   Use  THESES

DISSIPATION
   RT  DISSIPATION FACTOR

DISSIPATION FACTOR
   BT  ELECTRICAL PROPERTIES
   RT  DISSIPATION

DISSOCIATION
   BT  CHEMICAL REACTIONS
   NT  DECOMPOSITION
   NT  DEPOLYMERIZATION
   NT  PHOTODISSOCIATION
   RT  IONIZATION

DISSOLVED GASES
SN: 01-OCT-2000
   BT  GASES

DISSOLVING
   BT  MIXING
   RT  DILUTION
   RT  SOLVENTS

DISTANCE LEARNING
SN: 01-OCT-1999
   UF  ELECTRONIC CLASSROOM
   BT  COMPUTER AIDED INSTRUCTION
   BT  LEARNING

DISTANCE MEASURING EQUIPMENT
SN: RADIO NAVIGATIONAL AIDS THAT PROVIDE DISTANCE INFORMATION BY MEASUREMENT OF ROUND-TRIP TRANSMISSION TIME BETWEEN INTERROGATOR AND TRANSPONDER.
   UF  DME
   BT  MEASURING INSTRUMENTS
   NT  ODOMETERS

DISTILLATES
   NT  DISTILLED WATER
   RT  DISTILLATION

DISTILLATION
   BT  SEPARATION
   NT  FRACTIONATION
   NT  VACUUM DISTILLATION
   RT  DISTILLATES
   RT  DISTILLING PLANTS

DISTILLED WATER
   BT  DISTILLATES
   BT  WATER

DISTILLING PLANTS
   BT  INDUSTRIAL PLANTS
   RT  DISTILLATION

DISTORTION
   NT  PHASE DISTORTION
   RT  ABNORMALITIES
   RT  DIFFRACTION
   RT  ECCENTRICITY

DISTRESS SIGNALS
   BT  SIGNALS
   RT  FLARES
   RT  RESCUE BEACONS

DISTRIBUTED AMPLIFIERS
   BT  AMPLIFIERS

DISTRIBUTED COMPUTING
SN: A field of computer science that studies distributed systems. A distributed system consists of multiple autonomous computers that communicate through a computer network. The computers interact with each other in order to achieve a common goal. A computer program that runs in a distributed system is called a distributed program, and distributed programming is the process of writing such programs. (July 2011)
   UF  asynchronous computation
   UF  concurrent computing
   UF  grid computing
   UF  parallel computing
   BT  COMPUTER SCIENCE
   NT  CLIENT SERVER SYSTEMS
   NT  HIGH PERFORMANCE COMPUTING
   NT  SUPERCOMPUTERS

DISTRIBUTED DATA PROCESSING
SN: 01-SEP-1981 - DECENTRALIZED DATA PROCESSING USING MULTIPLE PROCESSORS.
   BT  DATA PROCESSING

DISTRIBUTED FEEDBACK LASERS
SN: 01-APR-2005
   BT  LASERS

DISTRIBUTED INTERACTIVE SIMULATION
SN: 01-OCT-1995
   BT  COMPUTERIZED SIMULATION
   NT  COLLABORATIVE VIRTUAL PROTOTYPING

DISTRIBUTION
   NT  AGE DISTRIBUTION
   NT  ASSIMILATION
   NT  BERNOULLI DISTRIBUTION
   NT  DISCRETE DISTRIBUTION
   NT  ELECTRIC POWER DISTRIBUTION
   NT  GEOGRAPHIC DISTRIBUTION
   NT  LOAD DISTRIBUTION
   NT  PRESSURE DISTRIBUTION
   NT  SPATIAL DISTRIBUTION
   NT  SPECTRAL ENERGY DISTRIBUTION
   RT  ALLOCATIONS

DISTRIBUTION CURVES
   BT  DISTRIBUTION FUNCTIONS
   BT  GRAPHS

DISTRIBUTION(ECONOMICS)
   BT  ECONOMICS

DISTRIBUTION FREE TESTS
   Use  STATISTICAL TESTS

DISTRIBUTION FUNCTIONS
   BT  STATISTICAL FUNCTIONS
   NT  DISTRIBUTION CURVES
   NT  NORMAL DISTRIBUTION
   NT  PROBABILITY DISTRIBUTION FUNCTIONS

DISTRIBUTION THEORY
   UF  SCHWARTZ'S THEORY
   BT  STATISTICAL ANALYSIS
   BT  THEORY

DISTRIBUTORS
SN: IGNITION DISTRIBUTORS FOR INTERNAL COMBUSTION ENGINES.
   BT  ENGINE COMPONENTS

DISTRICT OF COLUMBIA
   BT  UNITED STATES

DITCHES
   BT  EXCAVATION
   BT  TROUGHS
   RT  TRENCHES

DITCHING
   BT  ABANDONMENT
   BT  CRASH LANDINGS

DITHIINS
   BT  ORGANIC SULFUR COMPOUNDS

DITHIZONE
   BT  CHEMICAL AGENTS

DIURESIS
   BT  THERAPY
   BT  URINARY SYSTEM
   RT  BODY FLUIDS
   RT  EDEMA

DIURETICS
   BT  DRUGS

DIURNAL VARIATIONS
   BT  PERIODIC VARIATIONS
   NT  CIRCADIAN RHYTHMS

DIVE BOMBING
   BT  TACTICAL BOMBING

DIVER EQUIPMENT
   BT  UNDERWATER EQUIPMENT
   NT  DIVING SUITS
   RT  DIVERS

DIVERGENT INTEGRALS
   Use  INTEGRALS

DIVERS
   BT  PERSONNEL
   NT  SCUBA DIVERS
   RT  DIVER EQUIPMENT
   RT  DIVING

DIVERSITY RADAR
SN: RADAR THAT USES TWO OR MORE TRANSMITTERSAND RECEIVERS, EACH PAIR OPERATING AT ASLIGHTLY DIFFERENT FREQUENCY, BUT SHARING A COMMON ANTENNA AND VIDEO DISPLAY.
   UF  FREQUENCY DIVERSITY RADAR
   BT  RADAR

DIVERSITY RECEPTION
SN: RADIO RECEPTION IN WHICH THE EFFECTS OF FADING ARE MINIMIZED BY COMBINING TWO ORMORE SOURCES OF SIGNAL ENERGY CARRYING THE SAME MODULATION.
   BT  RADIO RECEPTION

DIVIDED DIFFERENCES
   Use  NUMERICAL ANALYSIS

DIVING
   NT  DEEP DIVING
   NT  SATURATION DIVING
   NT  SCUBA DIVING
   RT  DIVERS

DIVING SUITS
   BT  DIVER EQUIPMENT
   BT  UNDERWATER CLOTHING

DIVISION
   BT  ARITHMETIC

DIVISION LEVEL ORGANIZATIONS
   BT  CORPS LEVEL ORGANIZATIONS
   NT  BRIGADE LEVEL ORGANIZATIONS

DME
   Use  DISTANCE MEASURING EQUIPMENT

DNA
   Use  DEOXYRIBONUCLEIC ACIDS

DNT
   BT  EXPLOSIVES
   BT  NITROTOLUENES

DOCKING
   NT  SPACECRAFT DOCKING
   RT  DOCKS
   RT  JOINING

DOCKS
   BT  HARBORS
   NT  FLOATING DOCKS
   RT  DOCKING

DOCKS (PIERS)
   Use  PIERS

DOCKS(VESSELS)
   Use  FLOATING DOCKS

DOCTORS
   Use  PHYSICIANS

DOCTRINE
   NT  MILITARY DOCTRINE
   RT  EDUCATION

DOCUMENTS
   UF  PUBLICATIONS
   NT  ABSTRACTS
   NT  BIBLIOGRAPHIES
   NT  BIOGRAPHIES
   NT  BOOKS
   NT  CATALOGS
   NT  CLASSIFIED MATERIALS
   NT  COMPUTER PROGRAM DOCUMENTATION
   NT  DIAGRAMS
   NT  DICTIONARIES
   NT  DIRECTORIES
   NT  ENCYCLOPEDIAS
   NT  ENGINEERING DRAWINGS
   NT  HARD COPY
   NT  INSTRUCTIONS
   NT  LITERATURE SURVEYS
   NT  MANUALS
   NT  MILITARY PUBLICATIONS
   NT  NEWSPAPERS
   NT  PATENT APPLICATIONS
   NT  PATENTS
   NT  PERIODICALS
   NT  PICTURES
   NT  RECORDS
   NT  REPORTS
   NT  REPRINTS
   NT  SCIENTIFIC LITERATURE
   NT  THESAURI
   NT  TRANSLATIONS

DODECANE
   BT  ALKANES

DOEBLIN'S THEORY
   Use  PROBABILITY

DOGS
   BT  CARNIVORA
   NT  MILITARY DOGS

DOLLIES
   BT  MATERIALS HANDLING VEHICLES
   RT  CARRIAGES

DOLOMITE
   BT  CARBONATE MINERALS

DOLPHINS(MAMMALS)
   BT  CETACEA

DOLPHINS(STRUCTURES)
SN: 01-JUN-1989 - CLUSTERS OF PILE STRUCTURES.
   BT  PILE STRUCTURES

DOMAIN WALLS
   BT  MAGNETIC DOMAINS

DOMES(STRUCTURAL FORMS)
   BT  SHELLS(STRUCTURAL FORMS)
   NT  GUIDED MISSILE DOMES
   NT  INFRARED DOMES
   NT  RADOMES
   NT  SONAR DOMES
   RT  HEMISPHERICAL SHELLS

DOMESTIC
   RT  FOREIGN

DOMESTIC ANIMALS
   BT  ANIMALS
   NT  LIVESTOCK

DOMESTIC TERRORISM
SN: 01-JUL-1999 - APPLY TO POLITICAL TERRORISM, AND ITS ACTIVITIES, OCCURRING WITHIN THE UNITED STATES.
   BT  TERRORISM

DOMESTIC VIOLENCE
SN: 01-OCT-1996
   UF  CHILD ABUSE
   UF  SPOUSAL ABUSE
   BT  CRIMINOLOGY
   BT  INTERPERSONAL RELATIONS

DOMINANCE MODELS
   BT  MODELS

DOMINICAN REPUBLIC
   BT  WEST INDIES

DONKEYS
   Use  EQUINES

DONORS(MEDICINE)
   NT  BLOOD DONORS

DOORS
   UF  EXITS (DOORS)
   NT  AIRCRAFT DOORS
   NT  WATERTIGHT DOORS
   RT  EXITS
   RT  OPENINGS

DOPAMINE
   BT  CATECHOLAMINES

DOPING
   UF  DOPING(CRYSTALLOGRAPHY)
   UF  DOPING (SEMICONDUCTORS)

DOPING(CRYSTALLOGRAPHY)
   Use  DOPING

DOPING (SEMICONDUCTORS)
   Use  DOPING

DOPPLER EFFECT
   BT  FREQUENCY SHIFT

DOPPLER NAVIGATION
   BT  NAVIGATION

DOPPLER RADAR
   BT  DOPPLER SYSTEMS
   BT  RADAR

DOPPLER SONAR
   BT  DOPPLER SYSTEMS
   BT  SONAR

DOPPLER SYSTEMS
   NT  DOPPLER RADAR
   NT  DOPPLER SONAR
   NT  RADIO DOPPLER CHRONOGRAPHS

DORMANCY
   NT  DIAPAUSE
   NT  HIBERNATION

DOSAGE
SN: THE AMOUNT OF THERAPEUTIC OR TOXIC AGENTTO WHICH AN ORGANISM IS EXPOSED. FOR EXPOSURE TO NUCLEAR RADIATION, SEE RADIOLOGICAL DOSAGE.
   NT  LETHAL DOSAGE
   NT  ORAL DOSAGE
   NT  RADIATION DOSAGE
   NT  SUBLETHAL DOSAGE
   RT  DOSE RATE
   RT  DOSIMETERS
   RT  PHARMACOLOGY

DOSE RATE
SN: RADIOLOGICAL DOSAGE DELIVERED PER UNIT TIME.
   BT  RADIATION DOSAGE
   BT  RATES
   RT  DOSAGE
   RT  DOSIMETERS

DOSIMETERS
SN: INSTRUMENTS THAT MEASURE RADIOLOGICAL DOSAGE.
   BT  HEALTH PHYSICS INSTRUMENTATION
   BT  RADIATION MEASURING INSTRUMENTS
   NT  LUMINESCENT DOSIMETERS
   NT  PHOTOGRAPHIC DOSIMETERS
   RT  DOSAGE
   RT  DOSE RATE
   RT  DOSIMETRY
   RT  GEIGER COUNTERS

DOSIMETRY
   BT  RADIOMETRY
   NT  RADIATION DOSAGE
   RT  DOSIMETERS

DOUBLE BASE GUN PROPELLANTS
   BT  GUN PROPELLANTS

DOUBLE BASE PROPELLANTS
   BT  MULTIBASE PROPELLANTS
   NT  DOUBLE BASE ROCKET PROPELLANTS
   RT  COMPOSITE PROPELLANTS

DOUBLE BASE ROCKET PROPELLANTS
   BT  DOUBLE BASE PROPELLANTS
   BT  SOLID ROCKET PROPELLANTS

DOUBLE DIODES
   Use  DIODES(ELECTRON TUBES)

DOUBLE EXPANSION NOZZLES
   BT  NOZZLES

DOUGH MACHINES(FOOD PROCESSING)
SN: 01-SEP-1981 - A MACHINE TO MAKE DOUGH FROM FLOUR AND OTHER INGREDIENTS.
   BT  KITCHEN EQUIPMENT AND SUPPLIES

DOWELS
   BT  PINS

DOWN CONVERTERS
   BT  CONVERTERS
   RT  FREQUENCY DIVIDERS

DOWNED AIRCRAFT
   BT  aircraft
   RT  AVIATION ACCIDENTS

DOWNLINKS
SN: 01-SEP-1981
   BT  COMMUNICATIONS TRAFFIC
   RT  UPLINKS

DOWNSTREAM FLOW
   BT  FLUID FLOW

DOWNTIME
   BT  TIME INTERVALS
   RT  MAINTENANCE

DOWNWASH
   BT  AIR FLOW
   RT  WAKE

DRAFT INDICATORS(NAUTICAL)
   BT  DEPTH INDICATORS
   BT  SHIP AUXILIARY EQUIPMENT

DRAFTING
   BT  GRAPHIC ARTS

DRAG
   NT  AERODYNAMIC DRAG
   NT  DRAG REDUCTION
   NT  LIFT TO DRAG RATIO
   NT  LOW DRAG
   RT  FRICTION

DRAG REDUCTION
   BT  DRAG
   BT  REDUCTION
   RT  BOUNDARY LAYER CONTROL

DRAINAGE
   BT  HYDROLOGY
   NT  FLOODING
   NT  WATERSHEDS
   RT  IRRIGATION SYSTEMS
   RT  RUNOFF
   RT  SEEPAGE
   RT  SUMPS

DRAWDOWN
SN: 01-OCT-1995
   BT  GROUND WATER
   BT  HYDROLOGY

DRAWING(FORMING)
   BT  MATERIAL FORMING
   NT  COLD DRAWING

DREAMS
   BT  SLEEP

DREDGED MATERIALS
   BT  SPOIL
   RT  DREDGING

DREDGING
   BT  CHANNELS(WATERWAYS)
   RT  DREDGED MATERIALS

DREIN-SMULIAN THEOREM
   Use  FUNCTIONAL ANALYSIS

DRESSINGS
   BT  MEDICAL SUPPLIES
   RT  FIRST AID

DRIERS (APPARATUS)
   Use  DRYING APPARATUS

DRIFT
   BT  MOTION
   RT  DRIFTMETERS

DRIFT TUBE MASS SPECTROSCOPY
   BT  MASS SPECTROSCOPY

DRIFTMETERS
   BT  COURSE INDICATORS
   BT  MEASURING INSTRUMENTS
   BT  NAVIGATIONAL AIDS
   RT  DRIFT

DRILLING
   NT  OFFSHORE DRILLING
   NT  ROCK DRILLING
   RT  BOREHOLES
   RT  DRILLING MACHINES
   RT  DRILLS
   RT  WELL LOGGING

DRILLING MACHINES
   BT  MACHINE TOOLS
   RT  DRILLING
   RT  REAMERS

DRILLS
   UF  BORING TOOLS
   BT  TOOLS
   RT  DRILLING

DRINKING
   Use  INGESTION(PHYSIOLOGY)

DRINKING WATER
   BT  FRESH WATER

DRIVE CHAINS
   Use  DRIVES

DRIVE SHAFTS
   BT  SHAFTS(MACHINE ELEMENTS)

DRIVE SPROCKETS
   BT  SPROCKETS

DRIVERS(PERSONNEL)
SN: 01-SEP-1981
   UF  MOTOR VEHICLE OPERATORS
   BT  OPERATORS(PERSONNEL)

DRIVES
   UF  DRIVE CHAINS
   NT  DRIVES(ELECTRONICS)
   NT  FINAL DRIVES
   NT  MAGNETIC DRIVES
   NT  SHEAVES(DRIVES)
   NT  VARIABLE SPEED DRIVES
   RT  SPROCKETS

DRIVES(ELECTRONICS)
   BT  DRIVES

DRIVES(PSYCHOLOGY)
   Use  MOTIVATION

DROGUE PARACHUTES
   BT  PARACHUTES

DRONE CONTROL AIRCRAFT
SN: 01-SEP-1981 - A PILOTLESS AIRCRAFT OF CONVENTIONAL DESIGN, OR OF MODIFIED CONVENTIONAL DESIGN,PILOTED BY REMOTE CONTROL, AND ONCE AIRBORNE, GUIDED AND DIRECTED BY A MOTHER AIRCRAFT.
   BT  DRONES

DRONES
   BT  aircraft
   NT  DRONE CONTROL AIRCRAFT
   NT  REMOTELY PILOTED VEHICLES
   NT  SURVEILLANCE DRONES
   NT  TARGET DRONES

DROOPED AILERONS
   Use  AILERONS

DROP CASTING
   BT  CASTING

DROP FORGING
   BT  FORGING

DROP TESTS
   BT  TEST METHODS
   RT  IMPACT TESTS
   RT  SHOCK TESTS

DROPS
   BT  PARTICLES
   NT  RAINDROPS
   RT  LIQUIDS

DROPSONDES
   BT  RADIOSONDES

DROSOPHILA
   BT  DROSOPHILIDAE

DROSOPHILIDAE
   UF  POMACE FLIES
   UF  VINEGAR FLIES
   BT  DIPTERA
   NT  DROSOPHILA

DROUGHT
   BT  WEATHER
   RT  ARID LAND

DROWNING
   BT  ACCIDENTS

DRUG ABUSE
   NT  DRUG ADDICTION
   NT  DRUG OVERDOSE
   RT  DRUG SMUGGLING
   RT  DRUGS

DRUG ADDICTION
   BT  DRUG ABUSE
   RT  DRUG WITHDRAWAL
   RT  DRUGS

DRUG DETECTION
SN: 01-APR-1998
   NT  DRUG TESTING

DRUG INTERDICTION
SN: 01-SEP-1990 - TO PREVENT OR HINDER, BY ANY MEANS, THE USE OF AN AREA OR ROUTE FOR SMUGGLING ILLICIT DRUGS; TO SEIZE ILLICIT DRUGS THROUGH INTERCEPTION OF SMUGGLING OPERATIONS.
   UF  COUNTERDRUG OPERATIONS
   RT  DRUG SMUGGLING

DRUG OVERDOSE
   BT  DRUG ABUSE

DRUG SMUGGLING
SN: 01-SEP-1990 - IMPORTING OR EXPORTING ILLEGAL DRUGS SECRETLY IN VIOLATION OF THE LAW.
   BT  SMUGGLING
   RT  DRUG ABUSE
   RT  DRUG INTERDICTION

DRUG TESTING
SN: 01-APR-1998
   BT  DRUG DETECTION

DRUG TOLERANCE
   BT  TOLERANCES(PHYSIOLOGY)

DRUG WITHDRAWAL
   BT  THERAPY
   RT  DRUG ADDICTION

DRUGS
   NT  ANALGESICS
   NT  ANESTHETICS
   NT  ANTACIDS
   NT  ANTICOAGULANTS
   NT  ANTICONVULSANTS
   NT  ANTIDEPRESSANTS
   NT  ANTIDIURETICS
   NT  ANTIEMETICS
   NT  ANTIHISTAMINICS
   NT  ANTIHYPOTENSIVE DRUGS
   NT  ANTIINFLAMMATORY AGENTS
   NT  ANTIPLATELET DRUGS
   NT  ANTIPYRETICS
   NT  ANTITUBERCULAR AGENTS
   NT  ANTIVIRAL AGENTS
   NT  AUTONOMIC AGENTS
   NT  CAPSULES(PHARMACY)
   NT  CARDIOVASCULAR AGENTS
   NT  CATHARTICS
   NT  CHEMOTHERAPEUTIC AGENTS
   NT  CNS DEPRESSANTS
   NT  CNS STIMULANTS
   NT  CYCLAZOCINE
   NT  DIAGNOSTIC AGENTS
   NT  DIURETICS
   NT  EMETICS
   NT  HISTAMINE
   NT  MUSCLE RELAXANTS
   NT  MUTAGENS
   NT  NARCOTICS
   NT  PHARMACOLOGICAL ANTAGONISTS
   NT  PLACEBOS
   NT  PSYCHOTROPIC AGENTS
   NT  STEROIDS
   NT  THYROID AND ANTITHYROID AGENTS
   RT  ALKALOIDS
   RT  DRUG ABUSE
   RT  DRUG ADDICTION
   RT  LYMPHOTOXINS
   RT  PHARMACOLOGY

DRY BATTERIES
   BT  ELECTRIC BATTERIES
   NT  LITHIUM CHLORINE CELLS

DRY CLEANING
   BT  CLEANING

DRY DISK RECTIFIERS
   BT  RECTIFIERS

DRY FILM LUBRICANTS
   Use  SOLID LUBRICANTS

DRY FOOD MIXES
   Use  DEHYDRATED FOODS

DRY LAKES
   BT  ARID LAND
   BT  LANDFORMS
   NT  PLAYAS

DRY MATERIALS
   BT  MATERIALS

DRY PHOTOGRAPHIC PROCESSING
   BT  PHOTOGRAPHIC PROCESSING

DRYDOCK EQUIPMENT
   BT  DRYDOCKS

DRYDOCKS
   BT  MAINTENANCE EQUIPMENT
   NT  DRYDOCK EQUIPMENT
   RT  SHIPBUILDING

DRYING
   NT  DEWATERING
   NT  FREEZE DRYING
   RT  DRYING APPARATUS

DRYING AGENTS
   Use  DESICCANTS

DRYING APPARATUS
SN: 01-SEP-1981
   UF  DRIERS (APPARATUS)
   BT  SEPARATORS
   NT  EVAPORATORS
   NT  PHOTOGRAPHIC DRIERS
   RT  DRYING

DRYNESS
   Use  MOISTURE CONTENT

DSS
   Use  DECISION SUPPORT SYSTEMS

DUAL CHANNEL
   BT  MULTICHANNEL

DUAL HARDNESS
   BT  HARDNESS

DUAL MODE
   BT  MULTIMODE

DUAL PURPOSE GUNS
SN: GUNS DESIGNED TO DELIVER FIRE AGAINST AERIAL OR SURFACE TARGETS.
   BT  GUNS

DUAL ROTATION PROPELLERS
   BT  PROPELLERS

DUAL THRUST ROCKET ENGINES
SN: ROCKET MOTORS THAT OPERATE AT TWO THRUSTLEVELS BEFORE PROPELLENT BURNOUT.
   BT  SOLID PROPELLANT ROCKET ENGINES

DUAL USE TECHNOLOGY
SN: 01-JUL-1998 - TECHNOLOGIES DEVELOPED FOR THE GOVERNMENT WHICH HAVE COMMERCIAL APPLICATIONS.
   BT  TECHNOLOGY TRANSFER

DUCKS
   BT  LIVESTOCK
   BT  WATERFOWL
   RT  POULTRY

DUCT BENDS
   BT  DUCTS

DUCT INLETS
   UF  SCOOPS(AERODYNAMICS)
   BT  INLETS
   BT  SCOOPS

DUCTED BODIES
   BT  BODIES

DUCTED FANS
   BT  FANS
   RT  SHROUDED PROPELLERS

DUCTED PROPELLERS
   Use  SHROUDED PROPELLERS

DUCTED ROCKETS
SN: ROCKET ENGINES HAVING AN AUGMENTING DUCTENCIRCLING THE EXIT OF THE THRUST CHAMBER NOZZLE.
   BT  ROCKET ENGINES

DUCTILE BRITTLE TRANSITION
   BT  TRANSITIONS
   RT  BRITTLENESS
   RT  DUCTILITY

DUCTILITY
   BT  MECHANICAL PROPERTIES
   RT  DUCTILE BRITTLE TRANSITION

DUCTLESS GLANDS
   Use  ENDOCRINE GLANDS

DUCTS
   NT  AIRCRAFT ENGINE DUCTS
   NT  DUCT BENDS
   NT  VENTILATION DUCTS
   RT  PIPES
   RT  TUBES

DUFFING TYPE NON-LINEAR WAVE EQUATION
   Use  NONLINEAR DIFFERENTIAL EQUATIONS

DUMMY LOADS(ELECTRICITY)
   BT  ELECTRICAL LOADS

DUMMY WARHEADS
   Use  EXERCISE HEADS

DUMP TRUCKS
   BT  TRUCKS

DUNES
   BT  LANDFORMS
   RT  BEACHES

DUODENITIS
   BT  GASTROINTESTINAL DISEASES
   RT  DUODENUM

DUODENUM
   BT  SMALL INTESTINE
   RT  DUODENITIS

DUPLEXERS
   BT  TRANSMIT RECEIVE TUBES
   NT  RADAR DUPLEXERS
   RT  SWITCHING CIRCUITS

DUPLICATING
   Use  REPRODUCTION(COPYING)

DURA MATER
   BT  BRAIN
   BT  MEMBRANES(BIOLOGY)

DUST
   BT  PARTICLES
   NT  COSMIC DUST
   NT  DUST CLOUDS
   RT  DIRT

DUST CLOUDS
   BT  DUST

DUST CONTROL
   RT  DUST EXPLOSIONS

DUST EXPLOSIONS
   BT  EXPLOSIONS
   RT  DUST CONTROL

DUST STORMS
   BT  STORMS
   RT  AIR POLLUTION

DUTCH LANGUAGE
SN: 01-JUN-1989
   BT  NATURAL LANGUAGE
   RT  BELGIUM
   RT  NETHERLANDS
   RT  SURINAM

DWARF STARS
   BT  STARS

DWELL TIME
   BT  TIME INTERVALS

DWELLINGS
   Use  HOUSING(DWELLINGS)

DYE LASERS
   BT  LIQUID LASERS

DYES
   BT  COLORANTS
   NT  CHROMOPHORES
   NT  CYANINE DYES
   NT  FLUORESCENT DYES
   NT  INDANTHRENES
   NT  SOLVENT DYES
   NT  THIAZINES

DYNAMIC LOADS
   BT  LOADS(FORCES)
   NT  AERODYNAMIC LOADING
   NT  BLAST LOADS
   NT  CYCLIC LOADS
   NT  IMPULSE LOADING
   RT  STATIC LOADS

DYNAMIC PRESSURE
   BT  PRESSURE
   RT  BLAST LOADS
   RT  OVERPRESSURE
   RT  STATIC PRESSURE

DYNAMIC PROGRAMMING
   BT  mathematical programming

DYNAMIC RANGE
   BT  RANGE(EXTREMES)
   NT  HIGH DYNAMIC RANGE

DYNAMIC RESPONSE
   BT  RESPONSE
   NT  MODAL ANALYSIS

DYNAMIC TESTS
   BT  TEST METHODS
   NT  IMPACT TESTS
   NT  SHOCK TESTS

DYNAMICAL SYSTEMS(TRANSFORMATIONS)
   Use  TOPOLOGY

DYNAMICS
   BT  PHYSICS
   NT  KINETICS
   NT  LATTICE DYNAMICS
   NT  SOIL DYNAMICS

DYNAMITE
   BT  HIGH EXPLOSIVES
   RT  NITROGLYCERIN

DYNAMOMETERS
SN: INSTRUMENTS FOR MEASURING OR TESTING THETORQUE OR DRIVING POWER OF MOTORS OR OTHER MACHINES.
   BT  MEASURING INSTRUMENTS
   RT  ERGOMETERS

DYNAMOTORS
   BT  MOTOR GENERATORS

DYNODES
   BT  ELECTRODES
   BT  ELECTRON TUBE COMPONENTS

DYSENTERY
   UF  AMOEBIC DYSENTERY
   BT  GASTROINTESTINAL DISEASES
   NT  BACILLARY DYSENTERY
   NT  SHIGELLOSIS

DYSFUNCTION
   RT  ABNORMALITIES

DYSPLASIA
   BT  GROWTH(PHYSIOLOGY)

DYSPNEA
   BT  RESPIRATION
   RT  RESPIRATORY SYSTEM

DYSPROSIUM
   BT  RARE EARTH ELEMENTS
   RT  DYSPROSIUM COMPOUNDS

DYSPROSIUM COMPOUNDS
   BT  RARE EARTH COMPOUNDS
   RT  DYSPROSIUM

DYSURIA
   BT  KIDNEY DISEASES

E BAND
   BT  ULTRAHIGH FREQUENCY

E-FUNCTIONS
   Use  SPECIAL FUNCTIONS(MATHEMATICS)

E LAYER
   Use  E REGION

E REGION
SN: 01-NOV-1980 - THE REGION OF THE IONOSPHERE EXTENDING FROM 60 TO 90 MILES ABOVE THE EARTH; BETWEEN THE D AND F REGIONS.
   UF  E LAYER
   BT  IONOSPHERE

EAR
   UF  LABYRINTH (EAR)
   UF  STAPES
   UF  TYMPANIC CAVITY
   BT  HEAD(ANATOMY)
   BT  SENSE ORGANS
   NT  COCHLEA
   NT  MIDDLE EAR
   NT  ORGAN OF CORTI
   NT  SEMICIRCULAR CANALS
   NT  STRIA VASCULARIS
   NT  VESTIBULAR APPARATUS
   RT  HEARING
   RT  OTOLOGY

EAR PROTECTORS
   UF  HEARING PROTECTION
   BT  PROTECTIVE EQUIPMENT
   RT  NOISE REDUCTION

EARLY WARNING SYSTEMS
SN: SYSTEMS THAT WARN OF ENEMY ATTACK IN TIME FOR RETALIATORY AS WELL AS DEFENSIVE MEASURES.
   BT  WARNING SYSTEMS
   NT  AIRBORNE EARLY WARNING
   RT  DEFENSE SYSTEMS

EARPHONES
   UF  HEADPHONES
   BT  ELECTROACOUSTIC TRANSDUCERS

EARTH ATMOSPHERE
SN: 01-MAY-1983 - INCLUDES EARTH ENVELOPE AND TERRESTIAL ATMOSPHERE.
   BT  EARTH(PLANET)
   NT  SKY
   NT  STRATOSPHERE
   NT  TROPOSPHERE
   NT  UPPER ATMOSPHERE
   RT  OZONE LAYER

EARTH CORE
   BT  EARTH INTERIOR

EARTH CRUST
   BT  EARTH(PLANET)
   NT  EARTH SURFACE
   NT  LITHOSPHERE
   NT  OCEANIC CRUST
   RT  PLATE TECTONICS
   RT  STRUCTURAL GEOLOGY

EARTH CURRENTS
   Use  TELLURIC CURRENTS

EARTH DAMS
   BT  DAMS

EARTH FILLS
   BT  CONSTRUCTION MATERIALS
   RT  BACKFILLS
   RT  EARTHWORK

EARTH HANDLING EQUIPMENT
   BT  CONSTRUCTION EQUIPMENT

EARTH INTERIOR
   BT  EARTH(PLANET)
   NT  EARTH CORE
   NT  EARTH MANTLE

EARTH MANTLE
   UF  MANTLE(EARTH STRUCTURE)
   BT  EARTH INTERIOR
   NT  MOHOROVICIC DISCONTINUITY

EARTH MODELS
   BT  GEODESY
   BT  MODELS
   NT  GEOIDS
   NT  TERRAIN MODELS

EARTH MOVEMENTS
SN: MOVEMENTS OF THE EARTH, COMPRISING REVOLUTION ABOUT THE SUN, ROTATION ON THE AXIS, PRECESSION OF EQUINOXES, AND MOTION OF THE SURFACE OF THE EARTH RELATIVE TO THE CORE AND MANTLE.
   BT  SEISMOLOGY
   BT  TECTONICS
   NT  EARTH TIDES
   NT  EARTHQUAKES
   NT  GROUND MOTION
   NT  LANDSLIDES
   NT  OROGENY

EARTH ORBITS
   BT  ORBITS

EARTH(PLANET)
   BT  PLANETS
   NT  EARTH ATMOSPHERE
   NT  EARTH CRUST
   NT  EARTH INTERIOR
   NT  MOON
   RT  EARTH SCIENCES

EARTH SCIENCES
   NT  GEOCHEMISTRY
   NT  GEODESY
   NT  GEOGRAPHY
   NT  GEOLOGY
   NT  GEOPHYSICS
   NT  GLACIOLOGY
   NT  HYDROLOGY
   NT  MINERALOGY
   NT  OCEANOGRAPHY
   NT  PLANETOLOGY
   NT  SEISMOLOGY
   NT  SOIL SCIENCE
   RT  EARTH(PLANET)

EARTH SLIDES
   Use  AVALANCHES

EARTH SURFACE
SN: 01-JUN-1989
   BT  EARTH CRUST
   NT  OCEAN SURFACE

EARTH TIDES
SN: 01-JUN-1989 - PERIODIC MOVEMENTS OF THE EARTH'S CRUST CAUSED BY FORCES OF THE MOON AND SUN.
   BT  EARTH MOVEMENTS
   BT  TIDES

EARTHQUAKE ENGINEERING
   BT  ENGINEERING
   NT  EARTHQUAKE RESISTANT STRUCTURES
   NT  EARTHQUAKE WARNING SYSTEMS
   RT  EARTHQUAKES

EARTHQUAKE RESISTANT STRUCTURES
   BT  EARTHQUAKE ENGINEERING
   BT  STRUCTURES

EARTHQUAKE WARNING SYSTEMS
   BT  EARTHQUAKE ENGINEERING
   BT  WARNING SYSTEMS

EARTHQUAKES
   BT  EARTH MOVEMENTS
   BT  SEISMIC WAVES
   BT  SEISMOLOGY
   NT  EPICENTERS
   NT  TSUNAMIS
   RT  EARTHQUAKE ENGINEERING
   RT  SHAKING
   RT  TREMORS

EARTHSHINE
   BT  LIGHT

EARTHWORK
   BT  EMBANKMENTS
   RT  EARTH FILLS
   RT  FORTIFICATIONS

EAST AFRICA
SN: 01-NOV-1980
   BT  SUBSAHARAN AFRICA
   NT  ETHIOPIA
   NT  KENYA
   NT  MOZAMBIQUE
   NT  SOMALIA
   NT  TANZANIA

EAST CHINA SEA
   BT  NORTH PACIFIC OCEAN
   NT  YELLOW SEA

EAST(DIRECTION)
SN: 01-NOV-1980 - THE DIRECTION TOWARD THE RIGHT OF ONE FACING NORTH.
   BT  ORIENTATION(DIRECTION)

EAST GERMANY
   UF  GERMAN DEMOCRATIC REPUBLIC
   UF  PEOPLES DEMOCRATIC REPUBLIC OF GERMANY
   BT  GERMANY(EAST AND WEST)
   BT  WARSAW PACT COUNTRIES

EAST PACIFIC RISE
   BT  OCEAN RIDGES

EAST WEST RELATIONS
   BT  INTERNATIONAL RELATIONS
   NT  COLD WAR
   NT  DETENTE

EASTERN EQUINE ENCEPHALOMYELITIS VIRUS
   BT  EQUINE ENCEPHALOMYELITIS VIRUS

EASTERN EUROPE
   BT  EUROPE
   NT  ALBANIA
   NT  BALTIC COUNTRIES
   NT  BELARUS
   NT  BULGARIA
   NT  CZECHOSLOVAKIA
   NT  FINLAND
   NT  GREECE
   NT  HUNGARY
   NT  MOLDOVA
   NT  POLAND
   NT  RUMANIA
   NT  UKRAINE
   NT  YUGOSLAVIA

EATING
   Use  INGESTION(PHYSIOLOGY)

EBERTHELLA
   Use  SALMONELLA

EBOLA VIRUS
SN: 01-OCT-1995
   BT  VIRUSES

EBONITES
   BT  RUBBER

EBW
   Use  EXPLODING WIRES

ECCENTRICITY
   BT  SHAPE
   RT  ABNORMALITIES
   RT  ASYMMETRY
   RT  DISTORTION

ECHINODERMATA
   UF  ECHINODERMS
   UF  HOLOTHUIOIDEA
   UF  SEA CUCUMBERS
   BT  AQUATIC ANIMALS
   BT  INVERTEBRATES
   NT  SEA URCHINS
   NT  STARFISHES

ECHINODERMS
   Use  ECHINODERMATA

ECHO RANGING
   BT  SOUND RANGING
   RT  SONAR

ECHOCARDIOGRAPHY
   BT  CARDIOGRAPHY

ECHOES
   NT  SONAR ECHOES
   NT  TARGET ECHOES
   RT  ACOUSTIC REFLECTION
   RT  REVERBERATION

ECHOVIRUSES
   BT  ENTEROVIRUSES

ECLAMPSIA
   Use  CONVULSIVE DISORDERS

ECLIPSES
   BT  CELESTIAL MECHANICS
   NT  LUNAR ECLIPSES
   NT  SOLAR ECLIPSES
   NT  STELLAR ECLIPSES
   RT  OCCULTATION

ECOLOGY
   UF  BIONOMICS
   UF  PALEOECOLOGY
   BT  LIFE SCIENCES
   NT  ECOSYSTEMS
   NT  EUTROPHICATION
   NT  FOOD CHAINS
   NT  HABITATS
   RT  GLACIOLOGY

ECONOMETRICS
   BT  ECONOMIC ANALYSIS
   BT  METRICS
   NT  ECONOMIC FORECASTING
   NT  INDEXES(RATIOS)

ECONOMIC ANALYSIS
   BT  ECONOMICS
   NT  BUDGETS
   NT  ECONOMETRICS
   NT  ECONOMIC IMPACT
   NT  ECONOMIC MODELS
   NT  TRADE OFF ANALYSIS
   RT  COST ANALYSIS

ECONOMIC DEVELOPMENT
SN: 01-OCT-1997
   BT  ECONOMICS
   RT  COMMERCE

ECONOMIC FORECASTING
SN: 01-OCT-1997
   UF  TREND ANALYSIS
   BT  ECONOMETRICS

ECONOMIC GEOLOGY
   BT  GEOLOGY
   NT  PETROLEUM GEOLOGY
   RT  ECONOMICS

ECONOMIC IMPACT
SN: 01-SEP-1981 - DETERMINATION OF THE EFFECTS OF ECONOMICPOLICIES, DECISIONS, AND CONDITIONS UPON A GROUP, REGION, ETC., E.G., AS MIGHT RESULT FROM MOVING AN INDUSTRIAL PLANT FROM NORTHEAST TO SOUTHWEST OR CLOSING A MILITARY FACILITY.
   BT  ECONOMIC ANALYSIS
   RT  LIVING STANDARDS

ECONOMIC MODELS
   BT  ECONOMIC ANALYSIS
   NT  COST MODELS
   NT  GLOBALIZATION
   NT  OBSOLESCENCE THEORY

ECONOMIC SANCTIONS
SN: 01-JAN-2008
   BT  ECONOMICS
   RT  ECONOMIC WARFARE

ECONOMIC SYSTEMS
SN: The structure that guides production, allocation of economic inputs, distribution of economic outputs, and consumption of goods and services in an economy. It is a set of institutions and their social relations. Alternatively, it is the set of principles by which problems of economics are addressed, such as the economic problem of scarcity through allocation of finite productive resources. (July 2011)
   BT  ECONOMICS
   NT  CAPITALISM
   NT  COMMUNISM
   NT  SOCIALISM

ECONOMIC WARFARE
SN: ACTIONS DESIGNED TO DISRUPT ECONOMIC CONDITIONS IN AN ENEMY OR POTENTIAL ENEMY COUNTRY, THEREBY REDUCING ITS ABILITY TO WAGE WAR.
   BT  WARFARE
   RT  ECONOMIC SANCTIONS
   RT  ECONOMICS

ECONOMICS
   BT  SOCIAL SCIENCES
   NT  AGRICULTURAL ECONOMICS
   NT  COSTS
   NT  DEMAND(ECONOMICS)
   NT  DISTRIBUTION(ECONOMICS)
   NT  ECONOMIC ANALYSIS
   NT  ECONOMIC DEVELOPMENT
   NT  ECONOMIC SANCTIONS
   NT  ECONOMIC SYSTEMS
   NT  INFLATION(ECONOMICS)
   NT  LAND USE
   NT  MACROECONOMICS
   RT  ECONOMIC GEOLOGY
   RT  ECONOMIC WARFARE
   RT  INVESTMENTS

ECOSYSTEMS
   BT  ECOLOGY
   NT  CLOSED ECOLOGICAL SYSTEMS

ECTOPARASITES
   BT  PARASITES

ECUADOR
   BT  SOUTH AMERICA

ECZEMA
   BT  DERMATITIS

EDDIES(FLUID MECHANICS)
   UF  SWIRLING FLOW
   BT  FLUID MECHANICS
   BT  VORTICES

EDDY CURRENTS
   BT  ELECTRIC CURRENT

EDEMA
   UF  HYDROPERITONEUM
   NT  PULMONARY EDEMA
   RT  BODY FLUIDS
   RT  DIURESIS

EDGES
   NT  LEADING EDGES
   NT  SELVAGE
   NT  TRAILING EDGES
   RT  SIDES

EDITING
   BT  WRITING
   RT  CORRECTIONS

EDUCATION
   UF  TEACHING
   NT  COURSES(EDUCATION)
   NT  LEARNING DISABILITIES
   NT  LITERACY
   NT  SCHOOLS
   NT  SCIENCE FAIRS
   NT  TRAINING
   RT  DOCTRINE
   RT  LEARNING
   RT  SOCIAL SCIENCES
   RT  STUDENTS

EDUCTORS
   Use  JET PUMPS

EEG(ELECTROENCEPHALOGRAMS)
   Use  ELECTROENCEPHALOGRAPHY

EELS
SN: 01-MAY-1983 - THE COMMON NAME FOR A NUMBER OF UNRELATED FISHES INCLUDED IN THE ORDERS ANGUILLIFORMES AND CYPRINIFORMES; ALL HAVE AN ELONGATED, SERPENTINE BODY.
   BT  FISHES

EFFICIENCY
   NT  QUANTUM EFFICIENCY
   RT  PROFICIENCY

EFFLUENTS
   BT  LIQUID WASTES
   RT  EFFLUVIA

EFFLUVIA
   BT  VAPORS
   NT  HUMAN EFFLUVIA
   RT  EFFLUENTS

EFFUSION
   BT  STRESS(PHYSIOLOGY)

EGG ALBUMIN
   BT  ALBUMINS

EGG WHITE
   Use  EGGS

EGG YOLK
   Use  EGGS

EGGS
SN: REPRODUCTIVE CELL OF CERTAIN FEMALE ANIMALS WHICH MAY BE USED AS FOOD.
   UF  EGG WHITE
   UF  EGG YOLK

EGYPT
   BT  MIDDLE EAST
   BT  NORTH AFRICA
   NT  SINAI
   RT  EGYPTIANS

EGYPTIANS
   BT  AFRICANS
   RT  EGYPT

EICOSANE
   BT  ALKANES

EIGENFUNCTIONS
   Use  EIGENVECTORS

EIGENVALUES
   BT  DIFFERENTIAL EQUATIONS
   RT  EIGENVECTORS

EIGENVECTORS
   UF  EIGENFUNCTIONS
   BT  MATRICES(MATHEMATICS)
   RT  EIGENVALUES

EINSTEINIUM
   BT  ACTINIDE SERIES
   BT  TRANSURANIUM ELEMENTS
   RT  EINSTEINIUM COMPOUNDS

EINSTEINIUM COMPOUNDS
   BT  TRANSURANIUM COMPOUNDS
   RT  EINSTEINIUM

EISENSTEIN SERIES
   Use  SERIES(MATHEMATICS)

EJECTA
   RT  EJECTION

EJECTION
   RT  BAILOUT
   RT  EJECTA
   RT  EJECTION SEATS
   RT  EJECTORS

EJECTION SEATS
   BT  ESCAPE SYSTEMS
   BT  SEATS
   RT  EJECTION

EJECTORS
   NT  AIR EJECTORS
   NT  EJECTORS(ORDNANCE)
   RT  DISPENSERS
   RT  EJECTION

EJECTORS(FLUID)
   Use  JET PUMPS

EJECTORS(ORDNANCE)
   BT  EJECTORS
   NT  BOMB EJECTORS

EL SALVADOR
   BT  CENTRAL AMERICA

ELASTIC PROPERTIES
   BT  MECHANICAL PROPERTIES
   NT  AEROELASTICITY
   NT  ELASTOPLASTICITY
   NT  HYDROELASTICITY
   NT  MODULUS OF ELASTICITY
   NT  PHOTOELASTICITY
   NT  THERMOELASTICITY
   NT  VISCOELASTICITY
   RT  PLASTIC PROPERTIES

ELASTIC SCATTERING
   BT  SCATTERING
   NT  DELBRUCK SCATTERING
   RT  INELASTIC SCATTERING

ELASTIC SHELLS
   BT  SHELLS(STRUCTURAL FORMS)

ELASTIC WAVES
   BT  MECHANICAL WAVES
   NT  ACOUSTIC WAVES
   NT  DETONATION WAVES
   NT  PHONONS
   NT  RAYLEIGH WAVES
   NT  SECONDARY WAVES
   NT  SHOCK WAVES
   NT  STRESS WAVES
   NT  UNDERWATER ACOUSTICS

ELASTIC WEBBING
   BT  FABRICS
   RT  RUBBER FIBERS

ELASTIN
   Use  ALBUMINOIDS

ELASTOMERS
   NT  RUBBER
   NT  VULCANIZATES

ELASTOPLASTICITY
SN: 01-SEP-1990 - STATE OF A SUBSTANCE SUBJECTED TO A STRESS GREATER THAN ITS ELASTIC LIMIT BUT NOT SO GREAT AS TO CAUSE IT TO RUPTURE, INTHAT IT EXHIBITS BOTH ELASTIC AND PLASTIC PROPERTIES.
   BT  ELASTIC PROPERTIES
   BT  PLASTIC PROPERTIES

ELBOWS(FITTINGS)
   BT  FITTINGS

ELDERLY
SN: 01-APR-2009
   BT  ADULTS

ELECTIONS
SN: 01-NOV-1980 - THE SELECTION OF A PERSON OR PERSONS FOROFFICE BY VOTE.
   BT  POLITICAL SCIENCE

ELECTRETS
   BT  DIELECTRICS

ELECTRIC ARCS
   BT  ELECTRIC DISCHARGES

ELECTRIC AUTOMOBILES
   BT  AUTOMOTIVE VEHICLES
   RT  ELECTRIC ENGINES

ELECTRIC BATTERIES
   UF  BATTERIES(ELECTRICAL)
   NT  ALKALINE BATTERIES
   NT  BATTERY COMPONENTS
   NT  DRY BATTERIES
   NT  GUIDED MISSILE BATTERIES
   NT  LITHIUM BATTERIES
   NT  LOW TEMPERATURE BATTERIES
   NT  MAGNESIUM BATTERIES
   NT  MERCURY BATTERIES
   NT  METEOROLOGICAL BATTERIES
   NT  MINE BATTERIES
   NT  PRIMARY BATTERIES
   NT  RADIOISOTOPE BATTERIES
   NT  STORAGE BATTERIES
   NT  WET CELLS
   RT  BATTERY CHARGERS
   RT  ELECTRIC POWER PRODUCTION

ELECTRIC BRAKES
   BT  BRAKES
   NT  MAGNETIC BRAKES

ELECTRIC BRIDGES
   BT  MEASURING INSTRUMENTS
   NT  IMPEDANCE BRIDGES
   NT  MICROWAVE BRIDGES

ELECTRIC CABLES
   UF  CABLES(ELECTRICAL)
   UF  POWER DISTRIBUTION CABLES
   UF  STRANDED CONDUCTORS
   BT  CABLES
   BT  TRANSMISSION LINES
   NT  COAXIAL CABLES
   RT  CABLE GRIPS

ELECTRIC CHARGE
   BT  ELECTRICAL PROPERTIES
   NT  CHARGE DENSITY
   NT  CHARGE TRANSFER
   NT  ELECTROSTATIC CHARGE
   NT  SPACE CHARGE
   NT  SPACECRAFT CHARGING
   RT  ELECTROMETERS

ELECTRIC COILS
   BT  COILS
   NT  MAGNET COILS
   RT  IGNITION SYSTEMS

ELECTRIC CONDUCTORS
   NT  CONDUCTIVE POLYMERS
   NT  ELECTROLYTES
   NT  PHOTOCONDUCTORS
   NT  SUPERCONDUCTORS
   RT  TRANSMISSION LINES

ELECTRIC CONDUITS
   BT  CONDUITS

ELECTRIC CONNECTORS
   UF  CONNECTORS(ELECTRIC)
   UF  JACKS(ELECTRICAL)
   BT  CONNECTORS
   NT  CIRCUIT INTERCONNECTIONS
   NT  ELECTRON TUBE SOCKETS

ELECTRIC CONTACTS
   BT  ELECTRICAL EQUIPMENT
   NT  ELECTRIC SWITCHES
   NT  ELECTRICAL BRUSHES
   NT  FIXED CONTACTS
   NT  METAL CONTACTS

ELECTRIC CORD
   Use  ELECTRIC WIRE

ELECTRIC CURRENT
   UF  CURRENTS (ELECTRICAL)
   BT  CURRENTS
   BT  ELECTRICITY
   NT  ALTERNATING CURRENT
   NT  DIRECT CURRENT
   NT  EDDY CURRENTS
   NT  ELECTROJETS
   NT  IONIC CURRENT
   NT  TELLURIC CURRENTS
   RT  AMMETERS
   RT  VOLTAGE

ELECTRIC CURRENT REGULATORS
   Use  CURRENT REGULATORS

ELECTRIC DETONATORS
   BT  DETONATORS

ELECTRIC DIPOLE TRANSITIONS
   Use  SELECTION RULES(PHYSICS)

ELECTRIC DISCHARGES
   UF  DISCHARGES (ELECTRICAL)
   BT  ELECTRON EMISSION
   NT  BREAKDOWN(ELECTRONIC THRESHOLD)
   NT  ELECTRIC ARCS
   NT  GAS DISCHARGES
   NT  GLOW DISCHARGES
   NT  LIGHTNING
   NT  SPARKS
   RT  PRECIPITATION STATIC
   RT  SPACE CHARGE

ELECTRIC DOUBLE LAYER
   BT  DIELECTRIC PROPERTIES

ELECTRIC ENGINES
   BT  ENGINES
   NT  ARC JET ENGINES
   NT  ION ENGINES
   NT  PLASMA ENGINES
   RT  ELECTRIC AUTOMOBILES
   RT  ELECTRIC PROPULSION

ELECTRIC FENCES
SN: 01-MAY-1983 - A FENCE CONSISTING OF ONE OR MORE LENGTHS OF WIRE ENERGIZED WITH HIGH-VOLTAGE, LOW CURRENT PULSES, AND GIVING A WARNING SHOCK WHEN TOUCHED.
   BT  FENCES
   RT  DETERRENCE

ELECTRIC FIELDS
   BT  ELECTROMAGNETIC FIELDS
   BT  ELECTROMAGNETISM
   NT  ELECTROSTATIC FIELDS

ELECTRIC FILTERS
   BT  FILTERS
   NT  COAXIAL FILTERS
   NT  COMB FILTERS
   NT  CRYSTAL FILTERS
   NT  DIGITAL FILTERS
   NT  MATCHED FILTERS
   NT  TUNED FILTERS
   NT  VIDEO FILTERS
   RT  COMPENSATORS

ELECTRIC FURNACES
   BT  FURNACES
   NT  VACUUM FURNACES
   RT  ELECTRIC HEATERS

ELECTRIC FUZES(ORDNANCE)
   BT  FUZES(ORDNANCE)

ELECTRIC GENERATORS
   BT  GENERATORS
   NT  ALTERNATORS
   NT  AMPLIDYNES
   NT  ELECTROSTATIC GENERATORS
   NT  HAND GENERATORS
   NT  MAGNETOHYDRODYNAMIC GENERATORS
   NT  MAGNETOS
   NT  MOTOR GENERATORS
   NT  PLASMA GENERATORS
   NT  RADIOISOTOPE THERMOELECTRIC DEVICES
   NT  SOLAR GENERATORS
   NT  THERMIONIC CONVERTERS
   NT  TURBOGENERATORS
   RT  ELECTRIC POWER

ELECTRIC GOVERNORS
SN: DEVICES THAT CONTROL THE OUTPUT OF GENERATORS.
   BT  SPEED REGULATORS

ELECTRIC GUNS
   BT  GUNS
   NT  ELECTROMAGNETIC GUNS
   NT  ELECTROTHERMAL CHEMICAL GUNS

ELECTRIC HEATERS
   BT  HEATERS
   RT  ELECTRIC FURNACES

ELECTRIC IGNITERS
   BT  IGNITERS
   NT  EXPLODING WIRES
   RT  ELECTRIC IGNITION

ELECTRIC IGNITION
   BT  IGNITION
   RT  ELECTRIC IGNITERS

ELECTRIC INSULATION
   Use  ELECTRICAL INSULATION

ELECTRIC MOMENTS
   BT  ELECTRICAL PROPERTIES
   BT  MOMENTS
   NT  NUCLEAR ELECTRIC MOMENTS

ELECTRIC MOTOR NOISE
   BT  MACHINERY NOISE
   RT  ELECTRIC MOTORS

ELECTRIC MOTOR STATORS
   BT  ELECTRIC MOTORS
   BT  STATORS

ELECTRIC MOTORS
   BT  ELECTRICAL EQUIPMENT
   BT  MOTORS
   NT  ELECTRIC MOTOR STATORS
   NT  INDUCTION MOTORS
   RT  ELECTRIC MOTOR NOISE

ELECTRIC MULTIPOLE TRANSITIONS
   Use  SELECTION RULES(PHYSICS)

ELECTRIC POTENTIAL
   Use  VOLTAGE

ELECTRIC POWER
   UF  ELECTRICAL ENERGY
   BT  POWER
   NT  BROWNOUTS(ELECTRIC POWER)
   NT  ELECTRIC POWER PRODUCTION
   NT  UNINTERRUPTABLE POWER GENERATION
   RT  ELECTRIC GENERATORS
   RT  ELECTRIC POWER TRANSMISSION
   RT  ELECTRIC PROPULSION

ELECTRIC POWER DISTRIBUTION
   BT  DISTRIBUTION
   BT  POWER DISTRIBUTION
   NT  ELECTRIC POWER TRANSMISSION

ELECTRIC POWER PLANTS
   UF  POWER PLANTS(ESTABLISHMENTS)
   NT  AUXILIARY POWER PLANTS
   NT  ENGINE GENERATOR SETS
   NT  NUCLEAR POWER PLANTS
   NT  THERMAL POWER PLANTS
   RT  ELECTRIC POWER PRODUCTION

ELECTRIC POWER PRODUCTION
   BT  ELECTRIC POWER
   NT  POWER SUPPLIES
   NT  THERMIONIC POWER GENERATION
   NT  THERMOELECTRIC POWER GENERATION
   RT  ELECTRIC BATTERIES
   RT  ELECTRIC POWER PLANTS
   RT  ELECTRICAL ENGINEERING

ELECTRIC POWER TRANSMISSION
   BT  ELECTRIC POWER DISTRIBUTION
   RT  ELECTRIC POWER
   RT  ELECTRICAL ENGINEERING

ELECTRIC PRIMERS
   BT  PRIMERS

ELECTRIC PROPULSION
   BT  PROPULSION SYSTEMS
   RT  ELECTRIC ENGINES
   RT  ELECTRIC POWER

ELECTRIC REACTORS
   BT  ELECTRICAL EQUIPMENT
   NT  SATURABLE REACTORS
   RT  TRANSFORMERS

ELECTRIC RELAYS
   UF  RELAYS(ELECTRIC)
   BT  RELAYS
   RT  ELECTRONIC RELAYS

ELECTRIC SERVOMECHANISMS
   Use  SYNCHROS

ELECTRIC SHUNTS
   UF  JUMPERS(ELECTRICITY)
   BT  SHUNTS

ELECTRIC SWITCHES
   UF  KNIFE SWITCHES
   BT  ELECTRIC CONTACTS
   BT  SWITCHES
   NT  CHANNEL SELECTORS
   NT  CIRCUIT BREAKERS
   NT  CROSSBAR SWITCHES
   NT  ELECTRONIC SWITCHES
   NT  INTERRUPTERS
   NT  PUSH BUTTONS
   NT  ROTARY SWITCHES
   NT  SEQUENCE SWITCHES
   NT  SYNCHRONIZING SWITCHES
   NT  THERMAL SWITCHES
   NT  TIME SWITCHES
   NT  TOGGLE SWITCHES
   NT  TRANSFER SWITCHES
   NT  VACUUM SWITCHES

ELECTRIC TERMINALS
   UF  TERMINAL BLOCKS
   BT  TERMINALS
   NT  BEAM LEADS

ELECTRIC TRIGGER CONTROLS
   BT  FIRING MECHANISMS(WEAPON)

ELECTRIC WELDING
   BT  WELDING
   NT  ARC WELDING
   NT  RESISTANCE WELDING
   NT  SPOT WELDING

ELECTRIC WIRE
SN: SINGLE, UNSTRANDED CONDUCTORS ONLY. FORSTRANDED AND MULTIPLE CONDUCTORS IN BUNDLES, SEE ELECTRIC CABLES.
   UF  ELECTRIC CORD
   BT  WIRE

ELECTRICAL BRUSHES
   BT  ELECTRIC CONTACTS
   NT  CARBON BRUSHES

ELECTRICAL CAPACITY
   Use  CAPACITANCE

ELECTRICAL CONDUCTIVITY
   UF  ELECTRICAL RESISTIVITY
   BT  ADMITTANCE
   BT  CONDUCTIVITY
   BT  ELECTRICAL PROPERTIES
   NT  PHOTOCONDUCTIVITY
   NT  SUPERCONDUCTIVITY

ELECTRICAL CORONA
   BT  CORONAS
   RT  AURORAE
   RT  IONIZATION

ELECTRICAL EFFECTS
   Use  ELECTRICAL PROPERTIES

ELECTRICAL ENERGY
   Use  ELECTRIC POWER

ELECTRICAL ENGINEERING
   BT  ENGINEERING
   NT  INFORMATION THEORY
   NT  POWER ENGINEERING
   NT  RADIO ENGINEERING
   NT  SIGNAL PROCESSING
   RT  ELECTRIC POWER PRODUCTION
   RT  ELECTRIC POWER TRANSMISSION

ELECTRICAL EQUIPMENT
   NT  ARMATURES
   NT  BATTERY CHARGERS
   NT  BRUSHLESS ELECTRICAL EQUIPMENT
   NT  ELECTRIC CONTACTS
   NT  ELECTRIC MOTORS
   NT  ELECTRIC REACTORS
   NT  INDUCTORS
   NT  JUNCTION BOXES
   NT  MICROWAVE EQUIPMENT
   NT  MINIATURE ELECTRICAL EQUIPMENT
   NT  PLUGS
   NT  RECTIFIERS
   NT  RESISTORS
   NT  VIBRATORS(ELECTRICAL)

ELECTRICAL GROUNDING
   BT  ELECTRICAL PROPERTIES

ELECTRICAL IMPEDANCE
   UF  IMPEDANCE(ELECTRICAL)
   BT  ELECTRICAL PROPERTIES
   BT  IMPEDANCE
   NT  CAPACITANCE
   NT  ELECTRICAL RESISTANCE
   NT  INDUCTANCE
   NT  REACTANCE
   RT  IMPEDANCE BRIDGES

ELECTRICAL INDUSTRY
   BT  INDUSTRIES

ELECTRICAL INSULATION
   UF  ELECTRIC INSULATION
   BT  INSULATION

ELECTRICAL LASERS
   BT  LASERS

ELECTRICAL LOADS
   BT  LOADING(ELECTRONICS)
   NT  DUMMY LOADS(ELECTRICITY)
   RT  OVERLOAD

ELECTRICAL MEASUREMENT
   BT  MEASUREMENT
   NT  POLAROGRAPHY
   NT  VOLTAMMETRY
   RT  ELECTROMETERS
   RT  ELECTROSCOPES

ELECTRICAL NETWORKS
   BT  NETWORKS
   NT  THREE TERMINAL NETWORKS

ELECTRICAL PROPERTIES
   UF  ELECTRICAL EFFECTS
   BT  ELECTRICITY
   NT  CARRIER MOBILITY
   NT  DIELECTRIC PROPERTIES
   NT  DISSIPATION FACTOR
   NT  ELECTRIC CHARGE
   NT  ELECTRIC MOMENTS
   NT  ELECTRICAL CONDUCTIVITY
   NT  ELECTRICAL GROUNDING
   NT  ELECTRICAL IMPEDANCE
   NT  ELECTRON MOBILITY
   NT  FERROELECTRICITY
   NT  LEAKAGE(ELECTRICAL)
   NT  LOADING(ELECTRONICS)
   NT  PERMITTIVITY(ELECTRICAL)
   NT  PIEZOELECTRICITY
   NT  PYROELECTRICITY

ELECTRICAL RESISTANCE
   UF  RESISTANCE (ELECTRICAL)
   BT  ELECTRICAL IMPEDANCE
   BT  RESISTANCE
   NT  MAGNETORESISTANCE
   RT  RESISTORS

ELECTRICAL RESISTIVITY
   Use  ELECTRICAL CONDUCTIVITY

ELECTRICALLY SUSPENDED GYROS
   BT  GYROSCOPES

ELECTRICITY
   NT  ANTIFERROELECTRICITY
   NT  ATMOSPHERIC ELECTRICITY
   NT  BIOELECTRICITY
   NT  ELECTRIC CURRENT
   NT  ELECTRICAL PROPERTIES
   NT  FERROELECTRICITY
   NT  HYDROELECTRICITY
   NT  PHOTOELECTRICITY
   NT  STATIC ELECTRICITY
   NT  THERMOELECTRICITY
   NT  TRIBOELECTRICITY
   NT  VOLTAGE
   RT  ELECTROMAGNETIC FIELDS

ELECTROACOUSTIC MATERIALS
   BT  ACOUSTIC MATERIALS
   RT  ELECTROACOUSTICS

ELECTROACOUSTIC TRANSDUCERS
   BT  TRANSDUCERS
   NT  EARPHONES
   NT  HYDROPHONES
   NT  MICROPHONES
   NT  PINGERS
   RT  ELECTROACOUSTICS

ELECTROACOUSTICS
   BT  ACOUSTICS
   RT  ELECTROACOUSTIC MATERIALS
   RT  ELECTROACOUSTIC TRANSDUCERS

ELECTROANESTHESIA
   BT  ANESTHESIA

ELECTROCARDIOGRAPHY
   BT  CARDIOGRAPHY
   NT  VECTORCARDIOGRAPHY
   RT  DIAGNOSIS(MEDICINE)
   RT  ELECTROPHYSIOLOGY

ELECTROCATALYSTS
   BT  CATALYSTS

ELECTROCHEMISTRY
   BT  CHEMISTRY
   NT  ELECTROLYSIS
   RT  ELECTRODES

ELECTROCOLORATION
   BT  COLORING

ELECTROCORTICOGRAPHY
   BT  ELECTROPHOTOGRAPHY

ELECTROCORTIN
   Use  CORTICOSTEROID AGENTS

ELECTRODE HOLDERS
   BT  HOLDERS
   RT  ELECTRODES

ELECTRODEPOSITION
   BT  DEPOSITION
   NT  ELECTROFORMING
   NT  ELECTROPLATING
   RT  ELECTROLYTIC CELLS

ELECTRODERMAL RESPONSE
   Use  GALVANIC SKIN RESPONSE

ELECTRODES
   NT  ANODES
   NT  CATHODES
   NT  DYNODES
   NT  HYDROGEN ELECTRODES
   NT  ION SELECTIVE ELECTRODES
   NT  OXYGEN ELECTRODES
   NT  SPARK GAPS
   NT  TUBE GRIDS
   NT  WELDING RODS
   RT  ELECTROCHEMISTRY
   RT  ELECTRODE HOLDERS

ELECTRODIALYSIS
   BT  DIALYSIS

ELECTRODYNAMICS
   NT  ELECTROHYDRODYNAMICS
   NT  MAXWELLS EQUATIONS
   NT  QUANTUM ELECTRODYNAMICS
   RT  ELECTROMAGNETIC FIELDS
   RT  ELECTROSTATICS

ELECTROENCEPHALOGRAM
   Use  ELECTROENCEPHALOGRAPHY

ELECTROENCEPHALOGRAPHY
   UF  EEG(ELECTROENCEPHALOGRAMS)
   UF  ELECTROENCEPHALOGRAM
   NT  MAGNETOENCEPHALOGRAMS
   RT  DIAGNOSIS(MEDICINE)
   RT  ELECTROPHYSIOLOGY

ELECTROENDOSMOSIS
   Use  ELECTROOSMOSIS

ELECTROEROSIVE MACHINING
   UF  ELECTROLYTIC CUTTING
   BT  MACHINING
   NT  SPARK MACHINING

ELECTROEXPLOSIVE DEVICES
   Use  EXPLOSIVES INITIATORS

ELECTROFORMING
   BT  ELECTRODEPOSITION
   BT  MATERIAL FORMING
   RT  SPARK MACHINING

ELECTROGASTROGRAMS
   BT  ELECTROPHOTOGRAPHY
   RT  ELECTROPHYSIOLOGY

ELECTROHYDRAULIC VALVES
   BT  HYDRAULIC VALVES

ELECTROHYDRODYNAMICS
   BT  ELECTRODYNAMICS
   BT  HYDRODYNAMICS
   NT  ELECTROKINETICS

ELECTROJETS
   BT  ELECTRIC CURRENT
   RT  GEOMAGNETISM

ELECTROKINETICS
   BT  ELECTROHYDRODYNAMICS
   BT  KINETICS
   RT  ELECTROKINETOGRAPHS

ELECTROKINETOGRAPHS
SN: INSTRUMENT USED TO MEASURE OCEAN CURRENTVELOCITIES BASED ON THEIR ELECTRICAL EFFECTS IN THE MAGNETIC FIELD OF THE EARTH.
   BT  OCEANOGRAPHIC EQUIPMENT
   RT  ELECTROKINETICS
   RT  GEK DATA

ELECTROLESS PLATING
   BT  PLATING

ELECTROLUMINESCENCE
   BT  LUMINESCENCE
   RT  ELECTROOPTICS

ELECTROLYSIS
   BT  ELECTROCHEMISTRY
   BT  LYSIS
   RT  ELECTROLYTES

ELECTROLYTES
   BT  ELECTRIC CONDUCTORS
   NT  ELECTROLYTES(PHYSIOLOGY)
   NT  NONAQUEOUS ELECTROLYTES
   NT  SOLID ELECTROLYTES
   RT  ELECTROLYSIS
   RT  ELECTROLYTIC CELLS

ELECTROLYTES(PHYSIOLOGY)
   BT  ELECTROLYTES
   BT  PHYSIOLOGY
   RT  BLOOD PLASMA

ELECTROLYTIC CAPACITORS
   BT  CAPACITORS
   NT  TANTALUM CAPACITORS

ELECTROLYTIC CELLS
   UF  CELLS(ELECTROLYTIC)
   BT  CELLS
   NT  WET CELLS
   RT  ELECTRODEPOSITION
   RT  ELECTROLYTES

ELECTROLYTIC CUTTING
   Use  ELECTROEROSIVE MACHINING

ELECTROLYTIC POLISHING
   UF  ELECTROPOLISHING
   BT  FINISHES
   BT  POLISHING

ELECTROLYTIC REFINING
   Use  ELECTROREFINING

ELECTROLYTIC TITRATION
   Use  VOLUMETRIC ANALYSIS

ELECTROMAGNETIC COMPATIBILITY
   BT  COMPATIBILITY
   BT  ELECTROMAGNETIC PROPERTIES

ELECTROMAGNETIC DRIVES
   BT  MAGNETIC DRIVES

ELECTROMAGNETIC EFFECTS
   Use  ELECTROMAGNETIC PROPERTIES

ELECTROMAGNETIC ENGINES
   Use  PLASMA ENGINES

ELECTROMAGNETIC ENVIRONMENTS
   BT  ELECTROMAGNETIC PROPERTIES
   BT  ENVIRONMENTS

ELECTROMAGNETIC FACTORS
   Use  ELECTROMAGNETIC PROPERTIES

ELECTROMAGNETIC FIELDS
   BT  ELECTROMAGNETIC RADIATION
   NT  ELECTRIC FIELDS
   NT  FAR FIELD
   NT  FINITE DIFFERENCE TIME DOMAIN
   NT  MAGNETIC FIELDS
   NT  RADIO FIELDS
   RT  ELECTRICITY
   RT  ELECTRODYNAMICS
   RT  ELECTROMAGNETISM
   RT  ELECTROSTATICS

ELECTROMAGNETIC FUZES
   BT  FUZES(ORDNANCE)
   NT  INFRARED FUZES
   NT  OPTICAL FUZES

ELECTROMAGNETIC GUNS
SN: 01-SEP-1990 - GUNS WHICH GENERATE BRIEF BUT POWERFUL ELECTRICAL PULSES WHICH PRODUCE STRONG MAGNETIC FIELDS THAT CAN LAUNCH PROJECTILES AT GREAT SPEEDS.
   UF  COIL GUNS
   UF  RAIL GUNS
   BT  ELECTRIC GUNS

ELECTROMAGNETIC INDUCTION
   BT  MAGNETIC INDUCTION
   RT  INDUCTORS

ELECTROMAGNETIC INTERFERENCE
   BT  ELECTROMAGNETIC RADIATION
   BT  INTERFERENCE
   NT  BLACKOUT(PROPAGATION)
   NT  INFRARED JAMMING
   NT  RADIOFREQUENCY INTERFERENCE
   NT  SHOT NOISE

ELECTROMAGNETIC PROBES
   UF  BROADBAND PROBES
   BT  PROBES

ELECTROMAGNETIC PROPERTIES
SN: RESPONSE OF EQUIPMENT OR MATERIALS TO AN ELECTROMAGNETIC FIELD. ALSO, THE ABILITY OF EQUIPMENT OR MATERIALS TO PRODUCE ELECTROMAGNETIC FIELDS.
   UF  ELECTROMAGNETIC EFFECTS
   UF  ELECTROMAGNETIC FACTORS
   BT  PHYSICAL PROPERTIES
   NT  BIREFRINGENCE
   NT  CHROMATICITY
   NT  ELECTROMAGNETIC COMPATIBILITY
   NT  ELECTROMAGNETIC ENVIRONMENTS
   NT  ELECTROMAGNETIC SUSCEPTIBILITY
   NT  LORENTZ FORCE
   NT  MAGNETIC PROPERTIES
   NT  OPACITY
   RT  ELECTROMAGNETISM

ELECTROMAGNETIC PULSE SIMULATORS
   BT  SIMULATORS
   RT  ELECTROMAGNETIC PULSES

ELECTROMAGNETIC PULSES
   BT  ELECTROMAGNETIC RADIATION
   BT  PULSES
   NT  INFRARED PULSES
   NT  INTERNAL ELECTROMAGNETIC PULSES
   NT  LIGHT PULSES
   NT  RADIOFREQUENCY PULSES
   NT  WAVE PACKETS
   RT  ELECTROMAGNETIC PULSE SIMULATORS

ELECTROMAGNETIC PUMPS
   BT  PUMPS

ELECTROMAGNETIC RADIATION
   UF  RADIATION(ELECTROMAGNETIC)
   UF  WAVES(ELECTROMAGNETIC)
   BT  RADIATION
   NT  BEAMS(ELECTROMAGNETIC)
   NT  BLACKBODY RADIATION
   NT  BREMSSTRAHLUNG
   NT  CARRIER WAVES
   NT  CERENKOV RADIATION
   NT  CLUTTER
   NT  COHERENT ELECTROMAGNETIC RADIATION
   NT  CYCLOTRON WAVES
   NT  ELECTROMAGNETIC FIELDS
   NT  ELECTROMAGNETIC INTERFERENCE
   NT  ELECTROMAGNETIC PULSES
   NT  ELECTROMAGNETIC WAVE REFLECTIONS
   NT  GAMMA RAYS
   NT  INFRARED RADIATION
   NT  LIGHT
   NT  RADAR SIGNALS
   NT  RADIO WAVES
   NT  SYNCHROTRON RADIATION
   NT  THERMAL RADIATION
   NT  ULTRAVIOLET RADIATION
   NT  X RAYS
   RT  ELECTROMAGNETIC SCATTERING

ELECTROMAGNETIC SCATTERING
   BT  SCATTERING
   NT  LIGHT SCATTERING
   NT  MIE SCATTERING
   NT  RAMAN SCATTERING
   NT  THOMSON SCATTERING
   RT  ELECTROMAGNETIC RADIATION

ELECTROMAGNETIC SHIELDING
   BT  RADIATION SHIELDING

ELECTROMAGNETIC SPECTRA
   BT  SPECTRA
   NT  ABSORPTION SPECTRA
   NT  ATOMIC SPECTRA
   NT  BAND SPECTRA
   NT  EMISSION SPECTRA
   NT  GAMMA RAY SPECTRA
   NT  INFRARED SPECTRA
   NT  LINE SPECTRA
   NT  RAMAN SPECTRA
   NT  SOLAR SPECTRUM
   NT  ULTRAVIOLET SPECTRA
   NT  VISIBLE SPECTRA
   NT  X RAY SPECTRA

ELECTROMAGNETIC SUSCEPTIBILITY
   BT  ELECTROMAGNETIC PROPERTIES

ELECTROMAGNETIC THEORY
   Use  ELECTROMAGNETISM

ELECTROMAGNETIC WARFARE
   Use  ELECTRONIC WARFARE

ELECTROMAGNETIC WAVE FILTERS
   BT  FILTERS
   NT  OPTICAL FILTERS
   NT  POLARIZING FILTERS
   NT  WAVEGUIDE FILTERS
   NT  X RAY FILTERS

ELECTROMAGNETIC WAVE PROPAGATION
   BT  WAVE PROPAGATION
   NT  CONTINUOUS WAVES
   NT  LIGHT TRANSMISSION
   NT  RADIO TRANSMISSION

ELECTROMAGNETIC WAVE REFLECTIONS
   BT  ELECTROMAGNETIC RADIATION
   BT  REFLECTION
   NT  RADAR REFLECTIONS

ELECTROMAGNETISM
   UF  ELECTROMAGNETIC THEORY
   BT  PHYSICS
   NT  ELECTRIC FIELDS
   NT  MAGNETIC FIELDS
   RT  ELECTROMAGNETIC FIELDS
   RT  ELECTROMAGNETIC PROPERTIES

ELECTROMAGNETS
   BT  MAGNETS
   NT  SOLENOIDS
   NT  SUPERCONDUCTING MAGNETS
   NT  WIGGLER MAGNETS
   RT  MAGNET COILS

ELECTROMECHANICAL CONVERTERS
   BT  CONVERTERS
   BT  ELECTROMECHANICAL DEVICES
   RT  ENERGY CONVERSION

ELECTROMECHANICAL DEVICES
   NT  ELECTROMECHANICAL CONVERTERS
   NT  MICROELECTROMECHANICAL SYSTEMS

ELECTROMECHANICAL WAVES
   BT  MECHANICAL WAVES

ELECTROMETERS
   BT  MEASURING INSTRUMENTS
   RT  ELECTRIC CHARGE
   RT  ELECTRICAL MEASUREMENT

ELECTROMYOGRAPHY
   RT  ELECTROPHYSIOLOGY

ELECTRON ACCELERATORS
   BT  PARTICLE ACCELERATORS
   NT  BETATRONS
   NT  TRAVELING WAVE ELECTRON ACCELERATORS

ELECTRON ACCEPTORS
   BT  SEMICONDUCTORS

ELECTRON BEAM LITHOGRAPHY
SN: 01-OCT-1996
   BT  LITHOGRAPHY

ELECTRON BEAM MELTING
   BT  MELTING
   RT  ELECTRON BEAM WELDING

ELECTRON BEAM WELDING
   BT  FUSION WELDING
   RT  ELECTRON BEAM MELTING

ELECTRON BEAMS
   BT  CORPUSCULAR RADIATION
   BT  PARTICLE BEAMS
   RT  CYCLOTRON WAVES
   RT  ELECTRON LENSES

ELECTRON CAPTURE
   BT  BETA DECAY

ELECTRON DENSITY
   BT  DENSITY
   RT  CURRENT DENSITY
   RT  ELECTRON FLUX
   RT  ELECTRON GAS
   RT  ELECTRONS

ELECTRON DIFFRACTION
   BT  DIFFRACTION

ELECTRON DONORS
   BT  SEMICONDUCTORS

ELECTRON ELECTRON INTERACTIONS
SN: JAN 2000.
   BT  INTERACTIONS

ELECTRON EMISSION
   BT  EMISSION
   NT  ELECTRIC DISCHARGES
   NT  FIELD EMISSION
   NT  PHOTOELECTRIC EMISSION
   NT  SECONDARY EMISSION

ELECTRON ENERGY
   BT  ENERGY
   RT  ELECTRONS
   RT  KINETIC ENERGY

ELECTRON FLUX
   BT  PARTICLE FLUX
   RT  ELECTRON DENSITY

ELECTRON GAS
   BT  ELECTRONS
   RT  ELECTRON DENSITY
   RT  FREE ELECTRONS

ELECTRON GUNS
   BT  ELECTRON TUBE COMPONENTS
   RT  CATHODE RAY TUBES

ELECTRON IMPACT SPECTRA
   BT  EMISSION SPECTRA

ELECTRON IRRADIATION
   BT  IRRADIATION
   RT  SECONDARY EMISSION

ELECTRON LENSES
   BT  ELECTRON OPTICS
   BT  LENSES
   RT  BEAM FORMING
   RT  ELECTRON BEAMS

ELECTRON MICROSCOPES
   BT  MICROSCOPES
   NT  SCANNING ELECTRON MICROSCOPES
   RT  ELECTRON MICROSCOPY

ELECTRON MICROSCOPY
   BT  MICROSCOPY
   NT  SCANNING ELECTRON MICROSCOPY
   NT  TRANSMISSION ELECTRON MICROSCOPY
   RT  ELECTRON MICROSCOPES

ELECTRON MOBILITY
   BT  ELECTRICAL PROPERTIES
   BT  MOBILITY
   BT  TRANSPORT PROPERTIES
   RT  FREE ELECTRONS
   RT  HIGH ELECTRON MOBILITY TRANSISTORS

ELECTRON MULTIPLIERS
   BT  ELECTRON TUBES
   BT  ELECTRONIC MULTIPLIERS
   NT  MICROCHANNEL PLATES
   NT  PHOTOMULTIPLIER TUBES

ELECTRON NUCLEAR CROSS SECTIONS
   BT  NUCLEAR CROSS SECTIONS

ELECTRON NUCLEAR DOUBLE RESONANCE
   BT  RESONANCE
   RT  ELECTRON PARAMAGNETIC RESONANCE

ELECTRON OPTICS
   BT  OPTICS
   NT  ELECTRON LENSES
   RT  FLYING SPOT SCANNERS

ELECTRON PARAMAGNETIC RESONANCE
   BT  PARAMAGNETIC RESONANCE
   NT  ELECTRON SPIN RESONANCE
   RT  ELECTRON NUCLEAR DOUBLE RESONANCE

ELECTRON PROBES
   BT  PROBES

ELECTRON SCATTERING
   BT  NUCLEAR REACTIONS
   BT  SCATTERING

ELECTRON SPECTROSCOPY
   BT  SPECTROSCOPY
   NT  AUGER ELECTRON SPECTROSCOPY

ELECTRON SPIN RESONANCE
   BT  ELECTRON PARAMAGNETIC RESONANCE
   BT  SPIN RESONANCE

ELECTRON TRANSFER
   BT  TRANSFER
   RT  ELECTRON TRANSITIONS
   RT  ELECTRON TRANSPORT

ELECTRON TRANSITIONS
   BT  TRANSITIONS
   NT  SELECTION RULES(PHYSICS)
   RT  ATOMIC ORBITALS
   RT  ELECTRON TRANSFER
   RT  EXCIMERS

ELECTRON TRANSPORT
   BT  TRANSPORT
   RT  ELECTRON TRANSFER

ELECTRON TUBE COMPONENTS
SN: 01-DEC-1984
   UF  ELECTRON TUBE PARTS
   BT  ELECTRON TUBES
   NT  ANODES(ELECTRON TUBES)
   NT  CATHODES(ELECTRON TUBES)
   NT  CROSSED FIELD DEVICES
   NT  DYNODES
   NT  ELECTRON GUNS
   NT  ELECTRON TUBE HEATERS
   NT  ELECTRON TUBE TARGETS
   NT  TUBE GRIDS

ELECTRON TUBE HEATERS
   UF  FILAMENTS(ELECTRON TUBES)
   UF  TUBE HEATERS
   BT  ELECTRON TUBE COMPONENTS

ELECTRON TUBE PARTS
   Use  ELECTRON TUBE COMPONENTS

ELECTRON TUBE SOCKETS
   BT  ELECTRIC CONNECTORS

ELECTRON TUBE TARGETS
   BT  ELECTRON TUBE COMPONENTS
   NT  CATHODE RAY TUBE SCREENS

ELECTRON TUBES
   BT  ELECTRONIC EQUIPMENT
   NT  BEAM POWER TUBES
   NT  CATHODE RAY TUBES
   NT  COLD CATHODE TUBES
   NT  DIODES(ELECTRON TUBES)
   NT  DISCHARGE TUBES
   NT  ELECTRON MULTIPLIERS
   NT  ELECTRON TUBE COMPONENTS
   NT  FIELD EMISSION TUBES
   NT  IMAGE TUBES
   NT  MICROWAVE TUBES
   NT  MINIATURE ELECTRON TUBES
   NT  MIXER TUBES
   NT  PENTODES
   NT  RADIAL BEAM TUBES
   NT  RESNATRONS
   NT  SHADOW MASK TUBES
   NT  STORAGE TUBES
   NT  TETRODES
   NT  TRIODES
   NT  X RAY TUBES
   RT  TRANSCONDUCTANCE

ELECTRONIC ACCOUNTING MACHINES
   BT  PUNCHED CARD READERS

ELECTRONIC AIRCRAFT
SN: AIRCRAFT HAVING ECM CAPABILITY, ELECTRONIC DEVICES TO PERMIT EMPLOYMENT AS AN EARLY WARNING RADAR STATION, OR TACTICAL DATA COMMUNICATIONS LINK FOR ALL NONAUTONOMOUS MODES OF FLIGHT.
   BT  MILITARY AIRCRAFT
   NT  AIRBORNE WARNING AND CONTROL SYSTEM

ELECTRONIC CLASSROOM
   Use  DISTANCE LEARNING

ELECTRONIC COMMERCE
SN: 01-OCT-1998 - TRADE CONTROLLED BY ELECTRONIC COMMUNICATIONS.
   BT  COMMERCE
   BT  TELECOMMUNICATIONS

ELECTRONIC COMMUTATORS
SN: MECHANICAL OR ELECTRONIC DEVICES THAT EXECUTE REPETITIVE SEQUENTIAL SWITCHING INPULSE COMMUNICATION SYSTEMS.
   BT  COMMUTATORS

ELECTRONIC COUNTER COUNTERMEASURES
   BT  COUNTER COUNTERMEASURES
   BT  ELECTRONIC WARFARE
   NT  ANTIJAMMING

ELECTRONIC COUNTERMEASURES
   BT  COUNTERMEASURES
   BT  ELECTRONIC WARFARE
   NT  COMMUNICATIONS COUNTERMEASURES
   NT  JAMMING
   NT  RADAR COUNTERMEASURES
   NT  RADAR DECEPTION
   NT  RADIO COUNTERMEASURES
   NT  RADIO DECEPTION

ELECTRONIC EQUIPMENT
   NT  DIODES
   NT  ELECTRON TUBES
   NT  ELECTRONIC SCANNERS
   NT  ELECTROSTATIC PROBES
   NT  EMBEDDED SYSTEMS
   NT  MICROWAVE EQUIPMENT
   NT  MILLIMETER WAVE EQUIPMENT
   NT  MINIATURE ELECTRONIC EQUIPMENT
   NT  MIXERS(ELECTRONICS)
   NT  MODULES(ELECTRONICS)
   NT  OSCILLATORS
   NT  SEMICONDUCTOR DEVICES

ELECTRONIC INTELLIGENCE
SN: THE TECHNICAL AND INTELLIGENCE INFORMATION DERIVED FROM FOREIGN NONCOMMUNICATIONS ELECTROMAGNETIC RADIATIONS EMANATING FROM OTHER THAN NUCLEAR DETONATIONS OR RADIOACTIVE SOURCES.
   UF  ELINT
   BT  INTELLIGENCE
   NT  RADAR INTELLIGENCE

ELECTRONIC MAIL
SN: 01-DEC-1984 - THE ELECTRONIC TRANSMISSION OF LETTERS, MESSAGES AND MEMOS THROUGH A COMMUNICATIONS NETWORK.
   BT  DATA TRANSMISSION SYSTEMS
   RT  COMPUTER COMMUNICATIONS
   RT  INTERNET

ELECTRONIC MULTIPLIERS
   NT  ELECTRON MULTIPLIERS
   NT  FREQUENCY MULTIPLIERS

ELECTRONIC PHOTOFLASH EQUIPMENT
   BT  FLASH LAMPS
   BT  PHOTOGRAPHIC LIGHTING SYSTEMS
   NT  PHOTOFLASH LAMPS

ELECTRONIC PHOTOGRAPHY
   Use  ELECTROOPTICAL PHOTOGRAPHY

ELECTRONIC PUBLISHING
SN: 01-APR-1999
   UF  DESKTOP PUBLISHING
   BT  PRINTING

ELECTRONIC RECONNAISSANCE
   UF  FERRET RECONNAISSANCE
   BT  RECONNAISSANCE
   NT  RADAR RECONNAISSANCE

ELECTRONIC RECORDING SYSTEMS
   BT  RECORDING SYSTEMS
   NT  ACOUSTIC RECORDING SYSTEMS
   NT  DIELECTRIC RECORDING SYSTEMS
   NT  DISK RECORDING SYSTEMS
   NT  MAGNETIC RECORDING SYSTEMS
   NT  TAPE RECORDERS

ELECTRONIC RELAYS
   BT  RELAYS
   RT  ELECTRIC RELAYS

ELECTRONIC SCANNERS
   BT  ELECTRONIC EQUIPMENT
   BT  SCANNERS

ELECTRONIC SECURITY
   BT  SECURITY

ELECTRONIC STATES
   RT  FERMI SURFACES

ELECTRONIC SUPPORT MEASURES
   RT  ELECTRONIC WARFARE

ELECTRONIC SWITCHES
   BT  ELECTRIC SWITCHES
   RT  ELECTRONIC SWITCHING

ELECTRONIC SWITCHING
   BT  SWITCHING
   RT  ELECTRONIC SWITCHES

ELECTRONIC TECHNICIANS
   BT  TECHNICIANS

ELECTRONIC WARFARE
   UF  ELECTROMAGNETIC WARFARE
   BT  WARFARE
   NT  ELECTRONIC COUNTER COUNTERMEASURES
   NT  ELECTRONIC COUNTERMEASURES
   NT  INFORMATION WARFARE
   NT  RADAR INTERCEPTION
   NT  RADIO INTERCEPTION
   RT  ELECTRONIC SUPPORT MEASURES

ELECTRONICS
   NT  AVALANCHE EFFECT(ELECTRONICS)
   NT  AVIONICS
   NT  BLANKING(ELECTRONICS)
   NT  FAILURE(ELECTRONICS)
   NT  GASEOUS ELECTRONICS
   NT  MICROELECTRONICS
   NT  QUANTUM ELECTRONICS
   NT  REENTRANT ELECTRONICS
   NT  SOLID STATE ELECTRONICS
   NT  VISIONICS
   RT  ELECTRONICS INDUSTRY
   RT  ELECTRONICS LABORATORIES
   RT  MODULES(ELECTRONICS)

ELECTRONICS INDUSTRY
SN: 01-JUN-1989
   BT  INDUSTRIES
   RT  ELECTRONICS

ELECTRONICS LABORATORIES
   BT  LABORATORIES
   RT  ELECTRONICS

ELECTRONS
   BT  CHARGED PARTICLES
   BT  FERMIONS
   NT  AUGER ELECTRONS
   NT  BETA PARTICLES
   NT  ELECTRON GAS
   NT  FREE ELECTRONS
   NT  PHOTOELECTRONS
   NT  RELATIVISTIC ELECTRONS
   RT  ELECTRON DENSITY
   RT  ELECTRON ENERGY
   RT  EXCITONS
   RT  HOLES(ELECTRON DEFICIENCIES)
   RT  POSITRONS

ELECTROOCULOGRAMS
   BT  ELECTROOCULOGRAPHY
   RT  OCULOMETERS

ELECTROOCULOGRAPHY
   BT  ELECTROPHOTOGRAPHY
   NT  ELECTROOCULOGRAMS
   RT  ELECTROPHYSIOLOGY
   RT  OCULOMETERS

ELECTROOPTICAL PHOTOGRAPHY
SN: RECORDING OF OPTICAL, INFRARED, OR RADARIMAGES ON PHOTOGRAPHIC FILM BY ELECTRONIC SCANNERS.
   UF  ELECTRONIC PHOTOGRAPHY
   BT  PHOTOGRAPHY
   RT  ELECTROPHOTOGRAPHY

ELECTROOPTICS
   BT  OPTICS
   RT  ACOUSTOOPTICS
   RT  ELECTROLUMINESCENCE
   RT  MAGNETOOPTICS
   RT  OPTICAL PHENOMENA

ELECTROOSMOSIS
   UF  ELECTROENDOSMOSIS
   BT  OSMOSIS

ELECTROPHORESIS
   UF  CATAPHORESIS
   RT  ELECTROPHORETIC COATINGS

ELECTROPHORETIC COATINGS
   BT  COATINGS
   RT  ELECTROPHORESIS

ELECTROPHOTOGRAPHY
   BT  PHOTOGRAPHY
   NT  ELECTROCORTICOGRAPHY
   NT  ELECTROGASTROGRAMS
   NT  ELECTROOCULOGRAPHY
   RT  ELECTROOPTICAL PHOTOGRAPHY
   RT  XEROGRAPHY

ELECTROPHYSIOLOGY
   BT  PHYSIOLOGY
   RT  ELECTROCARDIOGRAPHY
   RT  ELECTROENCEPHALOGRAPHY
   RT  ELECTROGASTROGRAMS
   RT  ELECTROMYOGRAPHY
   RT  ELECTROOCULOGRAPHY
   RT  ELECTRORETINOGRAPHY
   RT  ELECTROTHERAPY

ELECTROPLATING
SN: ELECTRODEPOSITION OF A METAL OR ALLOY FROM A SUITABLE ELECTROLYTE SOLUTION.
   BT  ELECTRODEPOSITION
   BT  PLATING
   RT  DEPOSITION
   RT  ELECTROPLATING SOLUTIONS

ELECTROPLATING SOLUTIONS
   BT  SOLUTIONS(MIXTURES)
   RT  ELECTROPLATING

ELECTROPNEUMATIC VALVES
   BT  PNEUMATIC VALVES

ELECTROPOLISHING
   Use  ELECTROLYTIC POLISHING

ELECTROREFINING
   UF  ELECTROLYTIC REFINING
   BT  REFINING

ELECTRORETINOGRAPHY
   RT  ELECTROPHYSIOLOGY

ELECTRORHEOLOGY
SN: 01-APR-1998 - STUDY OF VARIATIONS IN VISCOSITY INDUCEDBY ELECTRIC FIELDS.
   BT  RHEOLOGY

ELECTROSCOPES
   BT  MEASURING INSTRUMENTS
   RT  ELECTRICAL MEASUREMENT

ELECTROSHOCK THERAPY
   Use  SHOCK THERAPY

ELECTROSLAG WELDING
   BT  PRESSURE WELDING
   BT  RESISTANCE WELDING

ELECTROSPARK MACHINING
   Use  SPARK MACHINING

ELECTROSTATIC ACCELERATORS
   BT  PARTICLE ACCELERATORS
   NT  COCKROFT WALTON ACCELERATORS

ELECTROSTATIC ANALYZERS
   BT  ANALYZERS

ELECTROSTATIC CHARGE
   BT  ELECTRIC CHARGE
   RT  ELECTROSTATIC PRECIPITATION
   RT  ELECTROSTATICS

ELECTROSTATIC FIELDS
   BT  ELECTRIC FIELDS
   RT  STATIC ELECTRICITY

ELECTROSTATIC FUZES
   BT  PROXIMITY FUZES

ELECTROSTATIC GENERATORS
   BT  ELECTRIC GENERATORS
   NT  VAN DE GRAAFF GENERATORS

ELECTROSTATIC PRECIPITATION
   UF  PRECIPITATION (ELECTROSTATIC)
   BT  PRECIPITATION
   BT  SEPARATION
   RT  ELECTROSTATIC CHARGE

ELECTROSTATIC PROBES
   BT  ELECTRONIC EQUIPMENT
   NT  LANGMUIR PROBES

ELECTROSTATICS
   BT  STATIC ELECTRICITY
   RT  ELECTRODYNAMICS
   RT  ELECTROMAGNETIC FIELDS
   RT  ELECTROSTATIC CHARGE
   RT  MAGNETOSTATICS

ELECTROSTRICTION
   BT  PIEZOELECTRICITY
   RT  MAGNETOSTRICTION

ELECTROTHERAPY
SN: THE THERAPEUTIC USE OF ELECTRICITY.
   BT  THERAPY
   RT  DIATHERMY
   RT  ELECTROPHYSIOLOGY

ELECTROTHERMAL CHEMICAL GUNS
SN: 01-OCT-1999
   BT  ELECTRIC GUNS

ELECTROTHERMAL ENGINES
   Use  ARC JET ENGINES

ELEMENTARY PARTICLES
   BT  NUCLEAR PARTICLES
   NT  ANTIPARTICLES
   NT  BARYONS
   NT  BOSONS
   NT  EXCITONS
   NT  FERMIONS
   NT  MAGNONS
   NT  QUARKS
   NT  REGGE POLES
   NT  STRANGE PARTICLES

ELEPHANTIASIS
   BT  PARASITIC DISEASES

ELEVATING GEAR
   BT  GUN COMPONENTS
   BT  GUN DIRECTORS

ELEVATION
   BT  ALTITUDE
   NT  LOW ELEVATION

ELEVATORS
   BT  TRAILING CONTROL SURFACES

ELEVATORS(LIFTS)
   BT  HOISTS

ELEVONS
   BT  TRAILING CONTROL SURFACES

ELIMINATION
   RT  CANCELLATION
   RT  ELIMINATION REACTIONS
   RT  ERASURE

ELIMINATION REACTIONS
   BT  CHEMICAL REACTIONS
   RT  ELIMINATION

ELINT
   Use  ELECTRONIC INTELLIGENCE

ELLESMERE ISLAND
   BT  QUEEN ELIZABETH ISLANDS

ELLIPSES
   BT  ANALYTIC GEOMETRY

ELLIPSOIDS
   BT  CONVEX BODIES
   BT  GEOMETRIC FORMS

ELLIPSOMETERS
   BT  MEASURING INSTRUMENTS

ELLIPTIC DIFFERENTIAL EQUATIONS
   Use  PARTIAL DIFFERENTIAL EQUATIONS

ELLIPTIC MAPPING
   Use  COMPLEX VARIABLES

ELLIPTICAL ORBIT TRAJECTORIES
   BT  ORBITS
   NT  APOGEE
   NT  PERIGEE

ELONGATION
   BT  SHAPE

ELUTION
   BT  SEPARATION

EMBANKMENTS
   BT  STRUCTURES
   NT  DIKES
   NT  EARTHWORK
   NT  LEVEES
   NT  REVETMENTS
   RT  BANKS(WATERWAYS)

EMBARGO
SN: 01-APR-2007
   BT  INTERDICTION

EMBEDDED SYSTEMS
SN: 01-OCT-2006 - Monitor circuits with preprogrammed computer commads built into equipment to facilitate its operation.
   BT  ELECTRONIC EQUIPMENT
   RT  HARDWARE IN THE LOOP

EMBEDDING
   RT  EMBEDDING SUBSTANCES
   RT  ENCAPSULATION

EMBEDDING SUBSTANCES
   BT  POTTING COMPOUNDS
   RT  EMBEDDING
   RT  ENCAPSULATION

EMBEZZLEMENT
   BT  THEFT

EMBOLISM
   UF  EMBOLUS
   BT  CARDIOVASCULAR DISEASES
   BT  OBSTRUCTION(PHYSIOLOGY)
   NT  GAS EMBOLISM

EMBOLUS
   Use  EMBOLISM

EMBRITTLEMENT
   UF  CAUSTIC EMBRITTLEMENT
   NT  HYDROGEN EMBRITTLEMENT
   RT  BRITTLENESS

EMBRYOLOGY
   BT  BIOLOGY
   BT  DEVELOPMENTAL BIOLOGY
   RT  EMBRYOS

EMBRYONATED EGG TECHNIQUE
   UF  CHICK EMBRYO TECHNIQUE
   BT  TISSUE CULTURE

EMBRYOS
   BT  REPRODUCTION(PHYSIOLOGY)
   NT  FETUS
   RT  EMBRYOLOGY

EMERGENCIES
   NT  DISASTERS
   NT  NATIONAL ENERGY CRISIS
   RT  ACCIDENTS
   RT  PARAMEDICS

EMERGENCY MEDICINE
SN: 01-OCT-2001
   BT  MEDICINE
   RT  TRIAGE

EMERGENCY RATIONS
   BT  RATIONS

EMESIS
   UF  VOMITING
   BT  PHYSIOLOGY
   RT  EMETICS
   RT  VOMITING AGENTS

EMETICS
   UF  APOMORPHINE
   BT  DRUGS
   RT  EMESIS
   RT  RAUWOLFIA ALKALOIDS

EMETINE
   Use  ISOQUINOLINE ALKALOIDS

EMISSION
   NT  ACOUSTIC EMISSIONS
   NT  ELECTRON EMISSION
   NT  THERMIONIC EMISSION
   RT  EMISSION CONTROL
   RT  EMITTERS

EMISSION CONTROL
   RT  EMISSION

EMISSION SPECTRA
   BT  ELECTROMAGNETIC SPECTRA
   NT  ELECTRON IMPACT SPECTRA
   RT  EMISSION SPECTROSCOPY

EMISSION SPECTROSCOPY
   BT  SPECTROSCOPY
   NT  QUANTUM BEATS
   NT  SELECTION RULES(PHYSICS)
   RT  EMISSION SPECTRA

EMISSIVITY
SN: THE RATIO OF THE RADIATION EMITTED BY A SURFACE TO THE RADIATION EMITTED BY A BLACKBODY AT THE SAME TEMPERATURE AND UNDER SIMILAR CONDITIONS.
   BT  SURFACE PROPERTIES
   BT  THERMOPHYSICAL PROPERTIES
   RT  EMISSOMETERS
   RT  EMITTANCE

EMISSOMETERS
   BT  MEASURING INSTRUMENTS
   RT  EMISSIVITY

EMITTANCE
   NT  SPECTRAL EMITTANCE
   RT  EMISSIVITY

EMITTERS
   NT  CATHODES(ELECTRON TUBES)
   RT  EMISSION

EMODIN
   Use  CATHARTICS

EMOLLIENTS
   Use  OINTMENTS

EMOTIONS
   BT  BEHAVIOR
   NT  ANXIETY
   NT  FEAR
   NT  FRUSTRATION

EMPHYSEMA
   BT  RESPIRATORY DISEASES
   RT  TOBACCO SMOKING

EMPLACEMENT
   BT  PASSIVE DEFENSE
   RT  POSITION(LOCATION)

EMPLOYEE RELATIONS
SN: RELATIONSHIPS BETWEEN EMPLOYERS AND EMPLOYEES OR AMONG EMPLOYEES.
   BT  INDUSTRIAL RELATIONS
   RT  EMPLOYMENT

EMPLOYMENT
   BT  MANPOWER UTILIZATION
   RT  EMPLOYEE RELATIONS
   RT  EQUAL EMPLOYMENT OPPORTUNITY
   RT  UNEMPLOYMENT

EMULSIONS
   BT  DISPERSIONS
   NT  PHOTOGRAPHIC EMULSIONS
   RT  SLURRIES
   RT  SOLUTIONS(MIXTURES)

EMULSIONS (PHOTOGRAPHY)
   Use  PHOTOGRAPHIC EMULSIONS

ENAMELS
   BT  COATINGS
   RT  PAINTS

ENANTIOMERS
SN: 01-JAN-1998 - CRYSTALLINE OR CHEMICAL ISOMERS WITH MIRRORED OPTICAL PROPERTIES.
   UF  ENANTIOMORPHS
   BT  ISOMERS
   RT  OPTICAL PROPERTIES

ENANTIOMORPHS
   Use  ENANTIOMERS

ENCAPSULATION
SN: ENCLOSURE OF DEVICES OR MATERIALS IN PROTECTIVE COVERING, SUCH AS GELATIN CAPSULES, GENERALLY PROVIDING SEALING ACTION TO SEGREGATE THE DEVICES OR MATERIALS FROM SURROUNDING ENVIRONMENTS. EXCLUDES POTTING OR OTHER EMBEDMENTS THAT ARE GENERALLY INSEPARABLE FROM THE DEVICES EMBEDDED.
   NT  POTTING
   RT  EMBEDDING
   RT  EMBEDDING SUBSTANCES
   RT  HOUSINGS
   RT  PACKAGING

ENCEPHALITIS
   BT  NERVOUS SYSTEM DISEASES
   NT  JAPANESE ENCEPHALITIS

ENCEPHALOGRAMS
   BT  X RAY DIAGNOSTICS

ENCEPHALOMYOCARDITIS INFECTIONS
   BT  INFECTIOUS DISEASES

ENCODERS
   Use  CODERS

ENCODING
   Use  CODING

ENCRYPTION
   Use  CRYPTOGRAPHY

ENCYCLOPEDIAS
   BT  DOCUMENTS

END MILL
   BT  MILLING MACHINES
   RT  END MILLING

END MILLING
   BT  SURFACE FINISHING
   RT  END MILL

END ON ORIENTATION
   BT  ORIENTATION(DIRECTION)

END ORGANS
   UF  INTEROCEPTORS
   UF  NEUROTENDINOUS SPINDLES
   UF  PACINIAN CORPUSCLES
   UF  PRESSORECEPTORS
   UF  PROPRIOCEPTORS
   BT  SENSE ORGANS
   NT  CHEMORECEPTORS
   NT  PHOTORECEPTORS
   RT  PROPRIOCEPTION

END SEALS
   BT  SEALS(STOPPERS)

ENDANGERED SPECIES
SN: 01-NOV-1980 - FAUNA LIKELY TO BECOME EXTINCT DUE TO THE VULNERABILITY ARISING FROM PRESSURE ONHIGHLY SPECIALIZED HABITATS OR DIRECT EXPLOITATION BY MEN, OR THREAT FROM OTHERSPECIES, OR BY A COMBINATION OF INHIBITING AND DESTRUCTIVE FACTORS.
   RT  WILDLIFE

ENDOATMOSPHERE
   BT  PLANETARY ATMOSPHERES

ENDOCARDIUM
   BT  HEART
   BT  MEMBRANES(BIOLOGY)
   RT  PERICARDIUM

ENDOCRINE GLANDS
   UF  DUCTLESS GLANDS
   BT  GLANDS
   NT  ADRENAL GLANDS
   NT  PARATHYROID GLANDS
   NT  PITUITARY GLAND
   NT  THYMUS
   NT  THYROID GLAND
   RT  ENDOCRINOLOGY
   RT  HORMONES

ENDOCRINOLOGY
   BT  MEDICINE
   RT  CHALONES
   RT  ENDOCRINE GLANDS

ENDOMETRIOSIS
SN: 01-MAY-1983 - THE PRESENCE OF ENDOMETRIAL TISSUES IN ABNORMAL LOCATIONS, INCLUDING THE UTERINEWALL, OVARIES, OR EXTRAGENITAL SITES.
   BT  NEOPLASMS
   RT  UTERUS

ENDORPHINS
SN: 01-OCT-1991 - BRAIN SECRETED NEUROTRANSMITTER PEPTIDESWITH MORPHINE-LIKE ACTIONS.
   BT  ANALGESICS
   BT  NEUROTRANSMITTERS
   BT  PEPTIDES

ENDOSCOPY
   BT  MEDICAL EXAMINATION

ENDOTHELIUM
   BT  TISSUES(BIOLOGY)
   RT  BLOOD VESSELS

ENDOTHERMIC REACTIONS
   BT  CHEMICAL REACTIONS
   RT  EXOTHERMIC REACTIONS

ENDOTOXEMIA
   BT  BLOOD DISEASES
   BT  TOXEMIA

ENDOTOXIC SHOCK
   BT  SHOCK(PATHOLOGY)
   RT  ENDOTOXINS

ENDOTOXINS
   BT  TOXINS
   RT  ENDOTOXIC SHOCK

ENDURANCE(GENERAL)
   NT  ENDURANCE(PHYSIOLOGY)

ENDURANCE LIMIT(MATHEMATICS)
   Use  STATISTICAL ANALYSIS

ENDURANCE(PHYSIOLOGY)
   BT  ENDURANCE(GENERAL)
   BT  STRESS(PHYSIOLOGY)

ENDURING FREEDOM OPERATION
   Use  AFGHANISTAN CONFLICT

ENEMY
   NT  ENEMY PERSONNEL

ENEMY PERSONNEL
   BT  ENEMY
   BT  PERSONNEL
   NT  TERRORISTS

ENERGETIC PROPERTIES
   BT  PHYSICOCHEMICAL PROPERTIES
   NT  ENERGY DENSITY
   RT  ENERGY

ENERGIZING
   Use  ACTIVATION

ENERGY
   NT  ACTIVATION ENERGY
   NT  ELECTRON ENERGY
   NT  ENERGY CONVERSION
   NT  FREE ENERGY
   NT  HIGH ENERGY
   NT  KINETIC ENERGY
   NT  LOW ENERGY
   NT  MECHANICAL ENERGY
   NT  NUCLEAR ENERGY
   NT  PHOTOTHERMAL ENERGY
   NT  POTENTIAL ENERGY
   NT  RENEWABLE ENERGY
   NT  RESERVES(ENERGY)
   NT  SURFACE ENERGY
   NT  THERMONUCLEAR ENERGY
   RT  ENERGETIC PROPERTIES
   RT  ENERGY STORAGE

ENERGY ABSORBERS
   BT  ABSORBERS(EQUIPMENT)
   NT  SHOCK ABSORBERS
   RT  DAMPING

ENERGY BANDS
   NT  BAND GAPS
   NT  CONDUCTION BANDS
   NT  VALENCE BANDS
   RT  ENERGY GAPS

ENERGY CONSERVATION
   BT  ENERGY MANAGEMENT
   NT  ENERGY HARVESTING
   RT  ENERGY CONSUMPTION

ENERGY CONSUMPTION
   BT  CONSUMPTION
   RT  ENERGY CONSERVATION

ENERGY CONVERSION
   BT  ENERGY
   RT  ELECTROMECHANICAL CONVERTERS

ENERGY DENSITY
SN: 01-APR-1998
   BT  ENERGETIC PROPERTIES

ENERGY EXCHANGE
   Use  ENERGY TRANSFER

ENERGY GAPS
   BT  ENERGY LEVELS
   NT  BAND GAPS
   RT  ENERGY BANDS

ENERGY HARVESTING
SN: 01-JULY-2008 - THE PROCESS OF GLEANING OF EXTREMELY SMALL AMOUNTS OF ENERGY FROM THE ENVIRONMENT.
   BT  ENERGY CONSERVATION

ENERGY LEVELS
   NT  ATOMIC ENERGY LEVELS
   NT  ENERGY GAPS
   NT  MOLECULAR ENERGY LEVELS
   NT  NUCLEAR ENERGY LEVELS

ENERGY MANAGEMENT
   BT  MANAGEMENT
   NT  ENERGY CONSERVATION

ENERGY STORAGE
   BT  STORAGE
   RT  ENERGY
   RT  STORAGE BATTERIES

ENERGY TRANSFER
   UF  ENERGY EXCHANGE
   BT  TRANSFER
   RT  HEAT TRANSFER

ENEWETAK ATOLL
SN: 01-DEC-1984
   UF  ENIWETOK ATOLL
   BT  ATOLLS
   BT  MARSHALL ISLANDS

ENGINE AIR SYSTEMS COMPONENTS
   BT  ENGINE COMPONENTS
   NT  AIR EJECTORS
   NT  AIRCRAFT ENGINE DUCTS
   NT  INDUCTION SYSTEMS
   NT  JET ENGINE INLETS
   NT  TURBOJET INLET SCREENS

ENGINE CLUSTERS
   BT  ROCKET ENGINES

ENGINE COMPONENTS
   BT  ENGINES
   NT  AIRCRAFT ENGINE COWLINGS
   NT  COMBUSTION CHAMBER LINERS
   NT  CONNECTING RODS
   NT  CRANKCASES
   NT  DISTRIBUTORS
   NT  ENGINE AIR SYSTEMS COMPONENTS
   NT  ENGINE CYLINDERS
   NT  ENGINE FUEL SYSTEMS COMPONENTS
   NT  ENGINE MUFFLERS
   NT  ENGINE STARTERS
   NT  FLYWHEELS
   NT  IGNITION CIRCUITS
   NT  PISTON RINGS
   NT  PISTONS

ENGINE CYLINDERS
   BT  ENGINE COMPONENTS

ENGINE FUEL SYSTEMS COMPONENTS
   BT  ENGINE COMPONENTS
   BT  FUEL SYSTEMS
   NT  CARBURETORS
   NT  FUEL INJECTORS

ENGINE GENERATOR SETS
SN: 01-DEC-1984 - ELECTRICAL SUPPLY SYSTEM IN WHICH ELECTRICAL POWER FOR A VEHICLE IS SUPPLIED BY AN ENGINE DRIVEN GENERATOR AS INDEPENDENT SOURCE.
   BT  ELECTRIC POWER PLANTS

ENGINE MOUNTS
   BT  MOUNTS

ENGINE MUFFLERS
   BT  ENGINE COMPONENTS
   BT  MUFFLERS
   RT  ENGINE NOISE

ENGINE NACELLES
   BT  NACELLES
   NT  JET ENGINE NACELLES

ENGINE NOISE
   BT  NOISE(SOUND)
   NT  AIRCRAFT ENGINE NOISE
   NT  INTERNAL COMBUSTION ENGINE NOISE
   NT  JET ENGINE NOISE
   NT  ROCKET ENGINE NOISE
   RT  ENGINE MUFFLERS

ENGINE PRIMERS
   BT  FUELS

ENGINE STARTERS
   BT  ENGINE COMPONENTS
   RT  IGNITION

ENGINE VALVES
   BT  VALVES
   NT  POPPET VALVES

ENGINEERING
   NT  AERONAUTICAL ENGINEERING
   NT  AUTOMOTIVE ENGINEERING
   NT  BIOENGINEERING
   NT  BIOMEDICAL ENGINEERING
   NT  CHEMICAL ENGINEERING
   NT  CIVIL ENGINEERING
   NT  EARTHQUAKE ENGINEERING
   NT  ELECTRICAL ENGINEERING
   NT  ENGINEERING GEOLOGY
   NT  ENVIRONMENTAL ENGINEERING
   NT  HUMAN FACTORS ENGINEERING
   NT  INDUSTRIAL ENGINEERING
   NT  MANAGEMENT ENGINEERING
   NT  MARINE ENGINEERING
   NT  MATERIALS ENGINEERING
   NT  MECHANICAL ENGINEERING
   NT  MEDICAL ENGINEERING
   NT  MILITARY ENGINEERING
   NT  MINING ENGINEERING
   NT  NUCLEAR ENGINEERING
   NT  SANITARY ENGINEERING
   NT  SYSTEMS ENGINEERING
   NT  VALUE ENGINEERING
   RT  ENGINEERS

ENGINEERING DRAWINGS
   BT  DOCUMENTS
   NT  AIRCRAFT LOFTING
   NT  MECHANICAL DRAWING

ENGINEERING GEOLOGY
   BT  ENGINEERING
   BT  GEOLOGY

ENGINEERS
   BT  PERSONNEL
   NT  AUTOMOTIVE ENGINEERS
   NT  HUMAN FACTORS ENGINEERS
   NT  MARINE ENGINEERS
   NT  MILITARY ENGINEERS
   RT  ENGINEERING

ENGINES
   NT  AIR BREATHING ENGINES
   NT  AIRCRAFT ENGINES
   NT  ELECTRIC ENGINES
   NT  ENGINE COMPONENTS
   NT  GAS GENERATOR ENGINES
   NT  GAS TURBINES
   NT  HEAT ENGINES
   NT  JET ENGINES
   NT  MARINE ENGINES
   NT  MULTIFUEL ENGINES
   NT  MULTIPULSE ENGINES
   NT  PISTON ENGINES
   NT  ROCKET ENGINES
   NT  TANK ENGINES
   NT  TRACTOR ENGINES
   NT  VARIABLE CYCLE ENGINES

ENGLE CONDITION
   Use  GROUPS(MATHEMATICS)

ENGLISH CHANNEL
   BT  STRAITS

ENGLISH LANGUAGE
   BT  NATURAL LANGUAGE

ENGRAVING
   NT  PHOTOENGRAVING
   RT  ETCHING

ENHANCEMENT
   Use  AUGMENTATION

ENIWETOK ATOLL
   Use  ENEWETAK ATOLL

ENLISTED PERSONNEL
   BT  MILITARY PERSONNEL
   NT  NONCOMMISSIONED OFFICERS
   NT  SPECIALISTS

ENLISTMENT
   Use  RECRUITING

ENRICHED FUEL REACTORS
   BT  NUCLEAR REACTORS
   RT  REACTOR FUEL ENRICHMENT

ENRICHMENT
   NT  REACTOR FUEL ENRICHMENT

ENTAMOEBA HISTOLYTICA
   BT  AMOEBA

ENTERIC BACTERIA
   BT  BACTERIA

ENTEROBACTERIACEAE
   BT  EUBACTERIALES
   NT  AEROBACTER
   NT  COLIFORM BACTERIA
   NT  ESCHERICHIA
   NT  KLEBSIELLA
   NT  PROTEUS
   NT  SALMONELLA
   NT  SERRATIA
   NT  SHIGELLA
   NT  YERSINIA PESTIS
   NT  YERSINIA PSEUDOTUBERCULOSIS

ENTEROBIUS
SN: is a genus (referred to as the pinworm in the USA, and knowm as threadworm or seatworm in the United Kingdom) of nematode (roundworm) and a common human intestinal parasite, especially in children.
   UF  PINWORM
   UF  SEATWORM
   UF  THREADWORM
   BT  NEMATODA

ENTEROPATHOGENS
   BT  PATHOGENIC MATERIALS

ENTEROTOXINS
   BT  TOXINS

ENTEROVIRUSES
   BT  PICORNAVIRUSES
   NT  COXSACKIE VIRUS
   NT  ECHOVIRUSES
   NT  POLIOVIRUSES

ENTHALPY
   BT  THERMODYNAMICS

ENTIRE FUNCTIONS
   Use  FUNCTIONS(MATHEMATICS)

ENTOMOLOGY
   BT  ZOOLOGY
   RT  INSECTS

ENTRAINMENT
   NT  AIR ENTRAINMENT
   RT  AERATION

ENTROPY
   BT  THERMODYNAMICS
   RT  IRREVERSIBLE PROCESSES
   RT  THERMAL POLLUTION

ENTRY CONTROL SYSTEMS
SN: 01-OCT-1992
   RT  ATMOSPHERE ENTRY
   RT  FLIGHT CONTROL SYSTEMS

ENUMERATION THEORY
   Use  COMBINATORIAL ANALYSIS

ENVELOPE(SPACE)
   BT  SPACE(ROOM)
   NT  FLIGHT ENVELOPE

ENVIRONMENTAL ASSESSMENT
SN: 01-APR-2001
   BT  ENVIRONMENTAL MANAGEMENT

ENVIRONMENTAL ENGINEERING
   BT  ENGINEERING
   RT  ENVIRONMENTAL IMPACT
   RT  ENVIRONMENTAL MANAGEMENT
   RT  ENVIRONMENTAL PROTECTION

ENVIRONMENTAL IMPACT
SN: 01-SEP-1981 - PREDETERMINATION OF THE EXTENT OF POLLUTION OR ENVIRONMENTAL DEGRADATION.
   RT  ENVIRONMENTAL ENGINEERING
   RT  ENVIRONMENTAL IMPACT STATEMENTS

ENVIRONMENTAL IMPACT STATEMENTS
   RT  ENVIRONMENTAL IMPACT

ENVIRONMENTAL LAW
SN: 01-APR-1998
   BT  LEGISLATION
   RT  ENVIRONMENTAL PROTECTION

ENVIRONMENTAL MANAGEMENT
   BT  MANAGEMENT
   NT  ENVIRONMENTAL ASSESSMENT
   RT  ENVIRONMENTAL ENGINEERING

ENVIRONMENTAL PROTECTION
   BT  PROTECTION
   RT  ENVIRONMENTAL ENGINEERING
   RT  ENVIRONMENTAL LAW

ENVIRONMENTAL PSYCHOLOGISTS
   BT  PSYCHOLOGISTS

ENVIRONMENTAL TESTS
   BT  TEST METHODS
   NT  COLD WEATHER OPERATIONS
   NT  COLD WEATHER TESTS
   NT  DESERT TESTS
   NT  LIQUID IMMERSION TESTS
   NT  SALT SPRAY TESTS
   NT  SEA TESTING
   NT  TROPICAL TESTS
   RT  ADVERSE CONDITIONS

ENVIRONMENTS
   NT  AEROSPACE ENVIRONMENTS
   NT  CONFINED ENVIRONMENTS
   NT  ELECTROMAGNETIC ENVIRONMENTS
   NT  INDUCED ENVIRONMENTS
   NT  OCEAN ENVIRONMENTS
   RT  HABITABILITY
   RT  HABITATS

ENZOOTIC
SN: 01-MAY-1983 - A DISEASE AFFECTING ANIMALS IN LIMITED GEOGRAPHIC REGIONS.
   BT  DISEASES
   RT  EPIZOOTIC

ENZYMATIC CANCER SCREENING
SN: 01-APR-2002
   BT  CANCER SCREENING

EN