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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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Systems safety checklists for use in preparation and review of launch, operating, test, checkout, maintenance, handling, calibration, and ordnance procedures for space vehicles
Properties of metallic surfaces prepared in ultrahigh vacuums
Effect of hypoxia on myocardium in starling heart lung preparations ventilated with mixtures of oxygen, nitrogen, and carbon dioxide
Blood pH and carbon dioxide tension effect on performance of heart-lung preparation
Mechanical properties of polyethylene terephthalate under selected conditions and methods of preparation
Preparation of filament wound glass microtape for forming thin walled tubes for containing cryogenic fluids
Diffusion process for preparing niobium stannide superconducting tape stabilized to any level, discussing reaction time, temperature and contamination
Hypoxia effect on myocardium in heart-lung preparations by relating stroke work and left arterial pressure
Quantitative electron probe microanalyzer standards preparation apparatus, discussing metal alloys rapid quenching and X ray flux data
Magnesium-zinc reduction of thorium dioxide is used for the preparation of thorium metal. Potential economic advantages of this technique include use of relatively inexpensive reagents for the metal and flux phases, and production of metal of acceptable quality in good yield.
Copper fluoride containing no more than 50 ppm of any contaminating element was prepared by the fluorination of copper hydroxyfluoride. The impurity content was obtained by spark source mass spectrometry. High purity copper fluoride is needed as a cathode material for high energy density batteries.
Effects of preparation techniques on thin film CdS solar cells
Automatic equipment for sampling and preparing gases by dual column gas chromatography for subsequent mass spectral analysis of carbon isotopes during methane metabolism
Method for preparation of vitreous materials in hollow cylindrical form, considering chemical homogeneity, porosity and geometrical shape
Transition metal interstitial compounds thin film preparation and superconducting properties, emphasizing high critical temperature, rock salt structure and NbN base
Slush H and N gels preparation and characteristics, including measurements of weight bearing capacity of gel as function of percent mass silica gelant
Procedure for preparing thin films for infrared spectrophotometric analysis involves pressing of a neat mixture of reactants between nonreactive thin polymer films with noninterfering absorption bands. Pressing is done under a pressure that gives desirable thickness. Following this process, the film sandwich is cut to accommodate the laboratory instrument.
Preparation and properties of imide pyrrone copolymers