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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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Electrodeposited thin films of calcium and magnesium hydroxides as separators in silver- cadmium battery for increased thermostability and reduced silver migration
Mark II automatic activation analysis system, influence of radiation on silver ion migration in mice, selenium determination in submicrogram quantities, and remote lunar analysis
In attaching external leads to thin film sensors of platinum ribbon, liquid gold is applied to each end of the ribbon and the leads are soldered to the cured gold. The cured and soldered liquid gold shows no tendency to migrate and retains initial resistance characteristics when exposed to elevated temperatures.
Ceramic composite thermal insulation comprised of alumina-silica fibers, pigmentary potassium titanate, and asbestos fibers, bonded with a colloidal silica sol has improved insulating capabilities to both radiant and convective heat. Gelation of the colloidal silica sol prevents binder migration.
Literature review on kinetics of defect production and migration, and defects in diamond-type lattice, particularly silicon
Recovery of deformed copper-palladium and gold- palladium alloys by isothermal and isochronal annealing, noting vacancy and interstitial migration
Upper atmosphere diurnal and seasonal latitudinal variations satellite data, showing diurnal bulge migration with subsolar point, 2 PM bulge peak, etc
Constitutional studies of SnTe and Si-Ge metal systems, segmented Si-Ge-PdTe thermocouple efficiencies, and pore migration in PbSnTe thermoelements
Prevention of test cell migration beyond the field of observation involves confining cells or cultures in microlagoons made in either a layer of grease or a thermoplastic substrate. Thermoplastic films or dishes are easily imprinted with specifically designed patterns of microlagoons.
Levels of contamination in fluid systems can be determined by a definition of a particle by a mathematical model, a method for calculating the tolerance limits of contamination, and an estimation of the probability that the contamination on the surface will migrate with the fluid in the system.
Grain boundary migration in lead after repeated creep stress reversals
Polyacrylic acid effect on grafted polyethylene film in electrical resistance and ion migration
Dielectric defects in oxide layers by ion migration, and hydrogen effects on integrated circuits with packaging considerations
Density wave theory of galactic spirals, discussing hydrogen distribution, young star distribution, stellar migration, magnetic field structure, density waves in stellar formation, etc
Coating electrodes of silver-cadmium cells with thermostable electrodeposits of calcium hydroxide or magnesium hydroxide reduces silver migration and increases cell life. Absence of organic matter enables assembled cells to be sterilized without oxidation of the material of the separators.
Density wave theory and spiral gravitational field effects in migrating stars orbits and origins in Milky Way spiral arm, using Schmidt model
Solution of initial value problem in linear transport theory obtained by monoenergetic neutrons migrating in thin slab with infinite reflector and isotropic scattering
Ion migration direction in thin Ag, Cu and Au films under direct current effect from resistance radioactive tracer measurements and scanning electron micrographs