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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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Hydrogen-oxidant galvanic cell removes small amounts of hydrogen gas continually released from equipment, such as vented silver-zinc batteries, in enclosed compartments where air venting is not feasible. These cells are used in satellite compartments.
Electrochemical milling removes burrs and solder from the cut ends of stainless steel capillary tubing. An electrolyte consisting primarily of a solution of sulfuric and phosphoric acids is used.
Takeup reel receives continuous paper tapes from data recording machines. The roller is recessed to have four longitudinal members about its periphery which can be extended or retracted to change the overall diameter of the assembly to allow easy removal of the tapes.
Device for locating leaks in a vacuum-jacketed liquid-hydrogen transfer line consists of two Mylar discs, a source of nitrogen and helium gas, and a mass spectrometer. The outer jacket of the pipeline does not need to be removed for the locator to be used.
Oscilloscope, with specially developed test circuitry, quickly checks semiconductors without removing them from the circuitry. For transistors, approximate gain and linearity, as well as PNP or NPN determinations are made. When testing diodes, open or short circuits, and reverse polarity show up plainly.
Metal removal techniques developed for fabrication of beryllium aerospace vehicles
Contaminant removal evaluation from cabin atmosphere of Apollo spacecraft
Hardware fabrication and evaluation for trace contaminant removal system integrated with Apollo environment control system
Regenerative moisture removal system testing for spacecraft cabin gases under 14 day mission simulation
Sorbent material and platinum and palladium catalyst testing for development of Apollo spacecraft trace contaminant removal system
Quantitative detection and washing and pumping methods for removal of traces of water from alkali halides
Correlation and prediction of adsorption levels of gaseous contaminants for removal from space cabin atmospheres
Continuous flow, solid state electrochemical device for simultaneous carbon dioxide removal and oxygen generation
Correlation and prediction of adsorption levels of gaseous contaminants for removal from space cabin atmospheres
Redundancy removal processes, classification and nomenclature compared by plotting compression ratio vs rms error and stressing ZVA process
Cracking that causes pressure leakage in glass connector headers can be alleviated by manipulating the pin bridgewire connectors. This initiates the surface and meniscus cracks. Dry blasting the header surface with a fine abrasive then removes the cracks.
Performance characteristics of electrochemical cell for oxygen content measurement and removal in sodium test systems
Metal removal techniques for beryllium in spacecraft structure application