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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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Boron nitride and boron nitride composite under high temperatures in air and vacuum for various time periods, discussing thermal shock and oxidation resistance
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Mechanical stress applied to foam-coated aluminum alloy specimens maintained at cryogenic temperature simulates actual use conditions of the foam insulation. The testing reveals defects in the polyurethane foam or in the foam to metal bond.
Improved liner for Apollo lunar module descent engine injection chamber
Summary of material and design improvements to reduce ablative chamber throat erosion in lunar module descent engine
Useful operating life of Apollo and LM RCS propellant tank configurations
Flame sprayed ceramic aluminum and zinc coatings for corrosion prevention of tantalum containment vessel in nuclear reactor
Low temperature semiconductor deposition techniques in fabricating thick film, insulated gate, field effect transistors
Exploding bridgewire detonator electrical input requirements, discussing waveform, peak current and time to peak
Accelerated failure tests of ammonia-Al-stainless steel heat pipes for fluid loss or energy transport degradation
Wind tunnel tests for instantaneous and dynamic analysis of effects of time-variant distortions produced in supersonic inlet on J85-GE-13 turbojet engine
Cost comparisons and experiment performance options for space shuttle orbital research centrifuge
Evaluation of metallic and nonmetallic construction material performance and reliability after long storage in OF2 and B2H6
Two-wire IC pressure transducer bridge circuit performance features based on circuit analysis
Time variant distortions in supersonic inlet on J-85-GE-13 turbojet engine from wind tunnel test, considering instantaneous distortion amplitudes and contours
Space shuttle orbital centrifuge systems configuration, comparing artificial gravity experiment performance options
A design guide for minimizing electromagnetic interference in aerospace communication equipment for ground stations is presented. Specifically treated are the mechanisms of generating unwanted radio emissions that may affect station operations as well as other communications services, the mechanisms by which sensitive receivers become susceptible to interference, means for reducing interference, standard methods of measurement, and the problems of site selection. The sources of interference are viewed primarily as originating from communications transmitters aboard spacecraft and aircraft, ground transmitters within and outside the ground stations, and other electrical sources on the ground that are not intended to radiate.