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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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Electrical connector clamp /bus bar/ gives high contact-surface efficiency for providing a high current to thin wall stainless steel tubing containing hydrogen gas. It uses lead solder film to provide the electrical equivalent of a fusion bond without degrading the grain structure, permitting disassembly and reuse of the components.
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 insulated, swaged stainless steel, sheathed, protective atmosphere cable admits electrical leads into an 1800 deg F air-environment test chamber. The cable has some bending capability and provides for nine niobium alloy conductors. An argon purge during the TIG weld closure protects internal wires from oxidation and embrittlement.
Redundant circuitry is added to computer network to eliminate incorrect output obtained due to a component failure, noise, or some other disturbance. This circuitry provides majority operation. Only NAND gates are employed, and the modules used are among the most popular microelectronic or integrated circuits presently in use.
Current sheet in earth geomagnetic tail
Stress concentration in shallow spherical shells determined by method with controlled boundary conditions
Concentrated forces applied to edges of two identical holes in elastic isotropic medium
IMP-I satellite measurements of neutral sheet in geomagnetic tail noting dimensions, motion and parameters of sheet
Data analysis, operational procedures for tracking and communications, and positions of observation stations for National Geodetic Satellite program
Extending computer programs for geometric analysis of geodetic satellite data
Omega seal, diffusion bonded, pressure welded, and high temperature separable connector designs and environmental tests
Fundamental leakage and structural studies of fluid connectors and seals
Principles of connector testing, design evaluation of commercial connectors, and assessment of design rules for threaded connectors
Production design feasibility of half inch X-connector for 4500 psi service
Guide manual for aiding designers in selection of duct, tubing, and gasketing materials for space vehicles and missiles
Breadboard models of magnetic switch with fail-safe characteristics for spacecraft computer