NASA Scientific and Technical Information (STI) Program
Collect, organize, provide access, and preserve NASA's research and development published results
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Link to Subject Category
Earth analogs - 91
Earth magnetic field - 46
Earth origins - 46
Earth resources - 43
Earth sciences - 42
Earth sensors - 35
Earth structure - 46
Earth-reflected radiation - 46
economic impacts - 83
economics - 83
educational curricula - 80
educational programs - 80
effects of atmospheric flight (human) - 52
effects of radiation (human) - 52
effects of radiation (psychological, human) - 53
effects of space flight (human) - 52
effects of stress (human) - 52
effects of stress (psychological, human) - 53
eigenvalues/eigenvectors - 64
ejection systems and seats (air transportation and safety) - 03
ejection systems and seats (design) - 05
ejectors (aircraft) - 07
ejectors (spacecraft) - 20
el Nino - 47
elasticity - 39
elastomers - 27
electric batteries (applications) - 44
electric circuits - 33
electric energy conversion devices - 44
electric filters - 33
electric motors - 33
electric power systems (aircraft) - 07
electric power systems (spacecraft) - 20
electric power units (aircraft) - 07
electric power units (electrical design) - 33
electric power units (spacecraft) - 20
electric propulsion systems (aircraft) - 07
electric propulsion systems (spacecraft) - 20
electric rocket engines - 20
electric vehicles - 85
electrical components - 33
electrical engineering - 33
electrical relays - 33
electrical transport properties in solids - 76
electrochemical processes - 25
electrochemistry - 25
electrodeposition - 37
electrogasdynamics - 75
electrohydrodynamics - 75
electromagnetic devices (radiators, sensors and other equipment) for navigation systems - 04
electromagnetic field effects (biological, animal and plant) - 51
electromagnetic field effects (physiological, human) - 52
electromagnetic interference - 32
electromagnetic launchers (facilities) - 14
electromagnetic launchers (operations) - 15
electromagnetic propulsion (spacecraft) - 20
electromagnetic radiation (communications) - 32
electromagnetic radiation (theory) - 70
electromagnetic wave propagation - 32
electromagnetism - 70
electromechanics - 33
electron beam devices - 33
electron beam welding - 37
electron beams - 73
electron collisions - 72
electron density (plasma physics) - 75
electron energy bands - 76
electron microscopes - 35
electron motion in conductors - 76
electron optics theory - 74
electron paramagnetic resonance (solid state) - 76
electron scattering - 72
electron tubes - 33
electronic circuits - 33
electronic components - 33
electronic countermeasures - 32
electronic packaging - 33
electronic test equipment - 33
electronics - 33
electro-optical systems (instrumentation) - 35
electrophoresis operations in space (EOS) - 29
electrophoresis - 25
electroplating - 37
electrostatic rocket engines - 20
electrostatics - 70
electrothermal rocket engines - 20
elementary particle interactions - 77
elementary particles - 77
emergency locater transmitters - 03
emission of radiation by atoms - 72
emissivity measurements - 35
energy absorption (structures) - 39
energy exchanges in the atmosphere - 47
energy gaps in semiconductors - 76
energy management technology - 44
energy production - 44
energy storage - 44
energy - 39
engine control systems (aircraft) - 07
engine fuel quantity gages - 06
engine ingestion - 07
engine noise (aircraft) - 07
engine noise suppressors (aircraft) - 07
engine oil pressure gages - 06
engine oil temperature gages - 06
engine propulsion system instruments and gages - 06
engine RPM indicators - 06
engine test blocks (space) - 14
engine test stands (aircraft) - 09
engine test stands (space) - 14
engineering (general) - 31
enthalpy - 34
entropy - 34
environmental clean up - 45
environmental effects (biological, animal and plant) - 51
environmental effects (human) - 52
environmental engineering - 45
environmental modifications - 45
environmental monitoring - 45
environmental pollution - 45
environmental surveys - 45
environmental test facilities - 38
environmental testing - 38
enzyme analysis (extraterrestrial) - 55
ephemerides of celestial bodies - 89
epitaxy - 76
epoxy matrix composites - 24
equations of state - 34
error analysis (statistics) - 65
error correction codes - 61
escape systems (aircraft) - 03
escape systems (spacecraft) - 16
estivation - 51
eutectics - 26
eutectoids - 26
evaluation of alloys - 26
evaluation of metals - 26
evaluation of nonmetallic materials - 27
evaluation of propellants and fuels - 28
exercise - 52
exhaust emissions (pollution) - 45
exhaust systems (aircraft engines) - 07
exit aerodynamics - 02
exit controls (aircraft engines) - 07
exobiology - 55
exotic propellants and fuels - 28
expandable structures (aircraft) - 05
expandable structures (spacecraft) - 18
expansion of the universe - 90
expert systems - 63
explosions (aircraft) - 03
explosions (spacecraft) - 16
explosives - 28
extrasolar planets (observation) - 89
extraterrestrial bases - 14
extraterrestrial biochemistry - 55
extraterrestrial biology - 55
extraterrestrial environment effect (exobiology) - 55
extraterrestrial life - 55
extraterrestrial roving vehicles - 91
extraterrestrial water - 55
extravehicular activity (EVA) (equipment) - 54
extravehicular activity (EVA) (operations) - 16
extravehicular activity (physiological effects) - 52
extreme temperature effects (exobiology) - 55
