Uniaxial and biaxial fracture toughness of extra-low-interstitial 5A1-2.5Sn titanium alloy sheet at 20 deg K
Effects of sheet width and notch length on calculated fracture toughness of low interstitial titanium alloy sheet
SHEET METAL↗
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Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
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Results obtained with the aid of night cameras. Extra-atmospheric observations of ultraviolet radiation in the Milky Way in winter
Photographic observations of Milky Way ultraviolet radiation from stable platform located outside atmosphere
ULTRAVIOLET RADIATION↗
Man's lunar extra vehicular capabilities.
Metabolic work requirement of man wearing pressure suit and associated biomechanical characteristics while locomoting on lunar gravity simulator
WORK CAPACITY↗
Investigations in space-related biology, including molecular evolution and relevant aspects of the extra-terrestrial environment Annual report, 1 Oct. 1966 - 30 Sep. 1967
Research projects on exobiology, extraterrestrial environments, and molecular evolution
Source record↗
Extra-atmospheric Measurements of the Ultraviolet and X-ray Backgrounds and Their Role in the Study of Intergalactic Gas
Ultraviolet and X ray background extraatmospheric measurements and role in study of intergalactic gas
Kurt, V. G.↗
Man's lunar extra vehicular capabilities.
Metabolic work requirements of man wearing pressure suit and associated biomechanical characteristics while locomoting on lunar gravity simulator
Kuehnegger, W.↗
1.0 A.U. extra-ecliptic constant low-thrust missions.
Constant thrust electric propulsion systems performance with coast trajectories presented for 1.0 AU extraecliptic missions
Mascy, A. C.↗
On extra atmospheric radioastronomical investigations
Extraterrestrial radio waves in radio astronomy
Getmantsev, G. G.↗
Extra-atmospheric silicon, S20 and S4 magnitudes of some bright stars.
Celestial navigation system using photodetectors, comparing numbers and brightness of S4, S20 and silicon stars
Matloff, G. L.↗
The spectrum of the extra-galactic background radiation at low radio frequencies
Low-frequency observations of radio spectra of extragalactic background radiation
Alexander, J. K.↗
Extra dividends from Government research
NASA Technology Utilization Program extending space exploration and upper atmosphere R and D to X ray pictures, safer highways, TV cameras, etc
Lesher, R. L.↗
The multiple diffraction origin of extra reflections in electron diffraction from an epitaxial system
Thin film sandwich Ag/Ni/Cu, demonstrating multiple electron diffraction
Feinstein, L. G.↗
Spectrum of the extra-galactic background radiation at low radio frequencies
Extragalactic LF background radiation spectra, using model for free-free absorption in galactic disk
Alexander, J. K.↗
Glass encapsulation provides extra protection for IC semiconductor devices
Oxide-passivated semiconductor chip is given protective glass coating by means of vapor deposition over metallic substrate of integrated circuit (IC). Method provides more reliable oxide-passivation and hermetic sealing in current use. Chips and scratches incurred during dicing, testing, and assembly are markedly reduced.
Doelp, W. L., Jr.↗
Theoretical investigation of isotopic anomaly of xenon in carbonaceous chondrites and other terrestrial and extra-terrestrial samples
The composition of Xe released from carbonaceous chondrites between 600 and 1000 C, particularly its isotopic trapped forms, is analyzed. Data show trapped Xe to have the following forms: Xe-124, 126, 130, 131, 132, 134, and 136. Attempts were also made to explain the Xe anomaly by mass fractionation as well as determine the relationship between metoritic trapped Xe and solar Xe.
Sabu, D. D.↗
Effects of geophysical extra-terrestrial and terrestrial physical stimuli on living organisms - Effects of gravity fields on living organisms
The biologic effects of greatly reduced gravity resulting from space flight are examined. Aspects of U.S. space biology during the period from 1960 to 1972 are discussed, giving attention to the Discoverer satellites, the Gemini series, the OV1-4 satellite, the biosatellite project, the orbiting frog otolith experiment, and the Apollo program. Other studies considered are related to the effects of galactic particles on nonproliferating cells, a recoverable tissue culture experiment, cell cycle maintenance in human lung cells, and effects of space flight on circadian rhythms. Viking will land on the planet Mars in 1975 in search for life forms.
Saunders, R. J. F.↗
Radio detection of Jupiter-like extra-solar planets
Explore the source record for details and available documents.
Fennelly, A. J.↗
Study of the extra-ionic electron distributions in semi-metallic structures by nuclear quadrupole resonance techniques
A straightforward self-consistent method was developed to estimate solid state electrostatic potentials, fields and field gradients in ionic solids. The method is a direct practical application of basic electrostatics to solid state and also helps in the understanding of the principles of crystal structure. The necessary mathematical equations, derived from first principles, were presented and the systematic computational procedure developed to arrive at the solid state electrostatic field gradients values was given.
Murty, A. N.↗