High permeability semiconductors permit close- tolerance soldering.
High permeability semiconductor used for close- tolerance soldering by concentration of energy of magnetic field
SEMICONDUCTOR DEVICE↗
SEARCH · Engineering Papers
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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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A continuous culture apparatus for the microbial utilization of hydrogen produced by electrolysis of water in closed-cycle space systems.
Continuous culture apparatus for bacterium, hydrogenomonas eutropha, as food and utilization of hydrogen produced by electrolysis of water in closed-cycle space system
FOOD↗
Segmented ball valve is easy to open and close
Segmented ball valve and flowmeter in the same spherical housing provide a valve that will handle large fluid volume without bulkiness and weight of blade valves or conventional ball valves. The valve is easily opened or closed and the flowmeter remains stationary, so errors are eliminated.
Prono, E.↗
Closed loop operation eliminates need for auxiliary gas in high pressure pumping station
Closed loop system for a liquid nitrogen high pressure pump feeds back gaseous nitrogen generated by heat leak into the reservoir to maintain the pressure in the storage tank. This safer, more efficient system eliminates the need for auxiliary gas to maintain the tank pressure and can be used on relatively high cryogenic pumping systems.
Landy, D. G.↗
Combined high-low thrust propulsion for the close solar probe mission
Combined high-low thrust propulsion for close solar probe mission
SOLAR PROBE↗
Energy losses in closing contacts measured by means of an oscillograph
Oscillograph measurements of energy losses in closing electric contacts - electrode erosion
EROSION↗
Comet and close-approach asteroid mission study. Volume 4 - Spacecraft system evaluation Final report, 2 Jul. 1964 - 2 Jan. 1965
Environmental requirements, spacecraft system evaluation, and mission characteristics in comet and close-approach asteroid mission study
SPACECRAFT ENVIRONMENT↗
Research program to develop a technology improvement program for closed die forging Progress report no. 4, Sep. - Nov. 1965
Closed die forging techniques for high strength aluminum and titanium alloys and maraging steel for use in space
HIGH STRENGTH ALLOY↗
Analysis of lunar and solar effects on the motion of close earth satellites
Lunar and solar effects on motion of close earth satellites
SATELLITE PERTURBATION↗
Effect of Non-synchronous Rotation on Close Binary Stars
Limiting stellar surface analysis for nonsynchronous rotation of close binary stars
BINARY STAR↗
Effect of non-synchronous rotation on close binary stars
Nonsynchronous rotation effect on limiting surface of component star in close binaries
BINARY STAR↗
A study of the interactions of magnetic materials using coupled films with a closed flux geometry, April 1965 - July 1966
Interactions of magnetic materials using coupled films with closed flux geometry for use in magnetic memories
THIN FILM↗
The closed Brayton cycle for space power - An assessment.
Closed Brayton cycle for onboard generation of space vehicle electric power from solar, isotope and nuclear reactor energy source
SPACECRAFT POWER SUPPLY↗
Trajectory analysis of a 1970 mission to Mercury via a close encounter with Venus.
Unmanned spacecraft trajectory and guidance considerations for close flyby of planet Mercury
SPACECRAFT GUIDANCE↗
Flowgraph techniques for closed systems.
Flowgraph techniques for closed systems, discussing properties, approximation method, topology equation, frequency response, constraints, oscillatory and stochastic processes, etc
HARMONIC OSCILLATOR↗
Continuous atmosphere control using a closed oxygen cycle.
Bosch process closed cycle oxygen production unit for space application
SPACE CABIN ATMOSPHERE↗
Stationary dust-filled cosmological solution with lambda equal 0 and without closed timelike lines.
Stationary dust-filled cosmological solution of Einstein field equations with zero lambda and without closed timelike lines
FIELD THEORY↗
Computer program for determination of natural frequencies of closed spherical sandwich shells
Solutions for the axially symmetric motion of an elastic spherical sandwich shell have been obtained from a theory of shells which includes the effects of transverse shear deformation and rotary inertia. Frequency equations and mode shapes are derived for the full vibrations of a closed spherical shell.
Wilkinson, J. P. D.↗