appraisal
INIS: 2000-04-12; ETDE: 1980-05-06 (Prior to August 1992 this was a valid ETDE descriptor.)
USE cost estimation
APPROPRIATE TECHNOLOGY INIS: 1999-06-23; ETDE: 1993-08-31 A technology anywhere between the simplest and the most sophisticated that is appropriate for accomplishing a particular task.
UF intermediate technology
approximation (bohr) 65 AQUEOUS SOLUTIONS SF nanotechnology
RT renewable energy sources RT technology assessment RT technology impacts RT technology utilization
approximation (bohr)
INIS: 1976-03-17; ETDE: 1976-05-17 USE nilsson-mottelson model
approximation (distorted-wave)
ETDE: 2002-06-07 USE dwba
approximation (fixed scattering centres)
ETDE: 2002-06-07 USE fsc approximation APPROXIMATIONS
INIS: 2006-02-06; ETDE: 2006-01-31 Use of a more specific term from this word block is recommended.
BT1 calculation methods NT1 adiabatic approximation NT1 born approximation
NT2 coupled channel born approximation NT2 dwba
NT1 born-oppenheimer approximation NT1 brinkman-kramers approximation NT1 broken-pair approximation NT1 diabatic approximation NT1 dirac approximation NT1 eikonal approximation
NT1 equivalent-photon approximation NT1 fsc approximation
NT1 guiding-center approximation NT1 hartree-fock method NT1 impulse approximation NT1 ladder approximation NT1 pade approximation NT1 random phase approximation NT1 rosseland approximation NT1 semiclassical approximation NT1 spherical harmonics method
NT2 p1-approximation NT2 p2-approximation NT2 p3-approximation
NT1 straight-line path approximation NT1 sudden approximation NT1 tomonaga approximation NT1 unitary pole approximation NT1 wkb approximation NT1 zero-range approximation
apra reactor
USE aprf reactor APRF REACTOR
Aberdeen Proving Ground, Aberdeen, Maryland, USA.
UF aberdeen maryland reactor UF apra reactor
UF army pulsed reactor assembly
*BT1 fast reactors
*BT1 pulsed reactors
*BT1 research reactors APRICOTS
1993-07-12
*BT1 fruits RT fruit trees RT rosaceae APS REACTOR
Obninsk, Kaluga, Russian Federation.
UF am-1 reactor
*BT1 enriched uranium reactors
*BT1 experimental reactors
*BT1 lwgr type reactors
*BT1 power reactors
*BT1 thermal reactors
aps storage ring
INIS: 1992-08-17; ETDE: 1992-06-11 USE advanced photon source APSARA REACTOR
Bhabha Atomic Research Center, Trombay, Maharashtra, India.
*BT1 enriched uranium reactors
*BT1 isotope production reactors
*BT1 pool type reactors
*BT1 research reactors
*BT1 thermal reactors
*BT1 training reactors AQUA REGIA
RT hydrochloric acid RT nitric acid
aquaclaus process
INIS: 2000-04-12; ETDE: 1977-12-22 Sulfur dioxide is removed from Claus plant tail gas or other gaseous waste using phosphate base adsorbent solution.
(Prior to March 1994, this was a valid ETDE descriptor.)
USE desulfurization AQUACULTURE
INIS: 1991-09-18; ETDE: 1975-11-11 Cultivation of natural faunal and/or floral resources of water.
UF aquiculture UF mariculture RT fisheries RT fishes
RT hydroponic culture RT waste heat utilization AQUATIC ECOSYSTEMS
UF brackish water ecosystems UF estuarine ecosystems UF fresh water ecosystems UF marine ecosystems BT1 ecosystems NT1 wetlands
NT2 marshes NT2 swamps RT amphibians RT aquatic organisms RT benthos
RT biochemical oxygen demand RT cattails
RT chemical oxygen demand RT eutrophication
RT hydrosphere RT limnology RT otters RT rotifera
AQUATIC ORGANISMS 1997-06-17
Unspecified biota characteristic of aquatic ecosystems.
UF azolla UF manatees NT1 amphibians
NT2 frogs NT2 salamanders
NT3 triturus NT2 toads NT1 aufwuchs NT1 benthos
NT2 echinoderms NT3 sea urchins NT1 bryozoa NT1 cetaceans NT1 crustaceans
NT2 branchiopods
NT3 artemia NT3 daphnia NT2 copepods NT2 decapods NT3 crabs NT3 lobsters NT3 prawns NT3 shrimp NT1 fishes
NT2 anadromous fishes NT3 salmon NT3 striped bass NT2 codfish NT2 eel
NT2 fathead minnow NT2 goldfish NT2 plaice NT2 trout NT2 tuna NT1 molluscs
NT2 clams NT2 mussels NT2 oysters NT2 snails NT1 pinnipeds NT1 plankton
NT2 ichthyoplankton NT2 phytoplankton NT2 zooplankton NT1 rotifera NT1 seaweeds
NT2 fucus NT2 laminaria NT1 water hyacinths RT algae RT animals
RT aquatic ecosystems RT ephemeroptera RT otters RT plants
aqueous carbonate process
INIS: 2000-04-12; ETDE: 1977-06-24USE desulfurization
AQUEOUS HOMOGENEOUS REACTORS
*BT1 liquid homogeneous reactors
*BT1 water cooled reactors
*BT1 water moderated reactors NT1 ai-l-77 reactor
NT1 argus reactor NT1 ber-2 reactor NT1 byu l-77 reactor NT1 cesnef reactor NT1 dr-1 reactor NT1 frf reactor NT1 gidra reactor NT1 hre-2 reactor NT1 jrr-1 reactor NT1 kewb reactor NT1 kstr reactor NT1 ncscr-1 reactor NT1 nevada university reactor NT1 prnc-l-77 reactor NT1 supo reactor NT1 wrrr reactor
aqueous humor
USE body fluids USE eyes
AQUEOUS SOLUTIONS UF water solutions
*BT1 solutions RT water
AQUICLUDES 66 ARCTIC GAS PIPELINES AQUICLUDES
1992-06-05
Bodies of relatively impermeable rock that are capable of absorbing water slowly but function as upper or lower boundaries of aquifers and do not transmit ground water rapidly enough to supply a well or spring.
RT ground water RT rocks
RT water reservoirs
aquiculture
INIS: 1991-09-18; ETDE: 1975-11-11 USE aquaculture
AQUIFERS
A stratum of permeable rock, sand, or gravel that will yield a significant quantity of water.
UF ground-water reserves RT artesian basins RT ground water RT hydrology RT reservoir pressure RT rocks
RT sand RT underground RT water influx RT water tables AQUILON REACTOR
*BT1 heavy water cooled reactors
*BT1 heavy water moderated reactors
*BT1 natural uranium reactors
*BT1 tank type reactors
*BT1 thermal reactors
*BT1 zero power reactors
ARAB ATOMIC ENERGY AGENCY INIS: 1992-03-24; ETDE: 1992-04-09
BT1 international organizations ARAB COUNTRIES
INIS: 1997-01-06; ETDE: 1992-08-05 NT1 algeria
NT1 bahrain NT1 djibouti
NT1 egyptian arab republic NT1 iraq
NT1 jordan NT1 kuwait NT1 lebanon
NT1 libyan arab jamahiriya NT1 mauritania
NT1 morocco NT1 oman NT1 qatar NT1 saudi arabia NT1 somalia NT1 sudan NT1 syria NT1 tunisia
NT1 united arab emirates NT1 yemen
RT africa RT asia RT middle east
arab republic of egypt
USE egyptian arab republic ARABIAN SEA
*BT1 indian ocean NT1 persian gulf
NT2 strait of hormuz ARABIDOPSIS
*BT1 magnoliopsida ARABINOSE
*BT1 aldehydes
*BT1 pentoses
RT gum acacia
arachidic acid
USE eicosanoic acid ARACHIDONIC ACID
*BT1 monocarboxylic acids ARACHNIDS
*BT1 arthropods NT1 mites NT1 scorpions NT1 spiders NT1 ticks ARAGONITE
A white, yellowish, or gray orthorhombic mineral.
*BT1 carbonate minerals RT calcium carbonates ARAL SEA
INIS: 1998-12-30; ETDE: 1999-01-28
*BT1 lakes
*BT1 seas RT kazakhstan RT uzbekistan ARALDITE
*BT1 epoxides
*BT1 organic polymers RT homalite RT resins
aralex process
INIS: 2000-04-12; ETDE: 1979-11-07 2-ethyl-1-hexanol is used to extract tbp degradation products from acidified sodium carbonate scrub waste leaving actinides in the aqueous phase.
(Prior to April 1994, this was a valid ETDE descriptor.)
USE radioactive waste processing ARAMIDS
INIS: 1996-08-05; ETDE: 1978-07-06 (Until July 1996 this concept was indexed to POLYAMIDES.)
UF kevlar
*BT1 plastics RT fibers
arbeitsgemeinschaft versuchsreaktor
INIS: 1993-11-03; ETDE: 2002-06-07USE avr reactor ARBI REACTOR
Bilbao, Vizcaya, Spain.
UF argonaut bilbao reactor UF bilbao argonaut reactor
*BT1 argonaut type reactors
*BT1 research reactors
*BT1 thermal reactors
*BT1 training reactors ARBITRATION
INIS: 1976-12-08; ETDE: 1977-06-24 (From March 1981 till March 1997 MEDIATION was a valid ETDE descriptor.)
SF mediation RT dispute settlements RT hearings
RT lawsuits ARBOR PROJECT
2000-04-12
*BT1 nuclear explosions
*BT1 underground explosions RT nevada test site ARBUS REACTOR
UF ast-1 reactor UF melekess-arbus reactor
*BT1 enriched uranium reactors
*BT1 experimental reactors
*BT1 omr type reactors
*BT1 power reactors
*BT1 test reactors
*BT1 thermal reactors ARC COAL PROCESS
2000-04-12
Avco Corp. process for production of acetylene and recovery of carbon black, hcn, char, low-btu fuel gas, and sulfur .
*BT1 coal gasification ARC FURNACES
*BT1 electric furnaces RT plasma furnaces RT vacuum furnaces ARC WELDING
UF flux cored arc welding
*BT1 welding
NT1 gas metal-arc welding NT2 gas tungsten-arc welding NT1 plasma arc welding NT1 shielded metal-arc welding NT1 submerged arc welding RT electroslag welding RT sputtering
ARCHAEOLOGICAL SITES INIS: 1985-12-10; ETDE: 1978-07-06
RT archaeological specimens RT archaeology
RT cultural objects RT site selection
ARCHAEOLOGICAL SPECIMENS RT archaeological sites
RT archaeology RT cultural objects RT cultural resources RT fossils
ARCHAEOLOGY RT age estimation RT archaeological sites RT archaeological specimens RT historical aspects ARCHITECTS
INIS: 1992-08-06; ETDE: 1980-01-15 SF professional personnel BT1 personnel
RT architecture RT builders RT buildings
RT construction industry RT solar architecture ARCHITECTURE
1992-03-10
NT1 solar architecture NT1 vernacular architecture RT aesthetics
RT architects RT buildings RT cultural resources RT thermal comfort
arco process
2000-03-24
(Prior to February 1995, this was a valid ETDE descriptor.)
SEE reprocessing SEE solvent extraction ARCTIC GAS PIPELINES
INIS: 2000-04-12; ETDE: 1976-07-07 BT1 pipelines
RT natural gas RT transport
arctic haze 67 ARGON 39
arctic haze
INIS: 2000-04-12; ETDE: 1987-04-08 Abundance of tropospheric carbonaceous aerosols north of 60 deg n, present during winter and spring, but almost absent during summer. Use AEROSOLS, AIR POLLUTION, or other pertinent term and the descriptor below.
(Prior to February 1997 this was a valid ETDE descriptor.)
USE arctic regions ARCTIC OCEAN
1977-09-06
*BT1 seas NT1 beaufort sea
NT2 prudhoe bay NT1 chukchi sea RT arctic regions RT greenland ARCTIC REGIONS
1995-11-22
(From April 1987 till February 1997 ARCTIC HAZE was a valid ETDE descriptor.)
UF arctic haze
*BT1 polar regions RT antarctic regions RT arctic ocean RT auroral zones RT chukchi sea RT climates RT eskimos RT glaciers RT greenland RT ice RT ice caps RT lapps
RT natural gas hydrate deposits RT novaya zemlya
RT permafrost RT polar-cap aurorae RT snow
RT tundra
ARDENNES B-1 REACTOR INIS: 1984-07-23; ETDE: 1984-09-05 Electricite de France, Chooz, France.
UF chooz b-1 reactor
*BT1 pwr type reactors ARDENNES B-2 REACTOR
2004-05-11
Electricite de France, Chooz, France.
UF chooz b-2 reactor
*BT1 pwr type reactors ARDENNES REACTOR
Chooz, Ardennes, France.
UF chooz reactor UF sena reactor
*BT1 pwr type reactors
are-rr-1 reactor
2000-04-12
USE wwr-s-cairo reactor
area pollution sources
INIS: 1992-03-09; ETDE: 1980-01-15 USE pollution sources
ARGAND DIAGRAMS 1999-09-16
The real part of a scattering amplitude plotted versus the imaginary one.
*BT1 scatterplots RT phase shift RT scattering amplitudes ARGENTINA
BT1 developing countries
*BT1 south america NT1 mendoza RT andes