SEARCH · Engineering Papers
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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Network for compensating electrical output of thin film resistance thermometers for deviations due to large heat-transfer rates
Mars data transmission difficulty in long-life Mars flyby and orbiter and Earth-return mission
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Explore the source record for details and available documents.
Explore the source record for details and available documents.
Explore the source record for details and available documents.
Explore the source record for details and available documents.
Technique using short term temporal integration characteristics of the observers visual system improves the apparent resolution of television video presentations. The raster is displaced slightly on each frame so the eye can integrate the information in each raster grain. This phase shift uses a switching time delay.
Mechanical antenna beam switching device detects weak signals over atmospheric and equipment noise sources in microwave antennas. It periodically nutates the paraboloidal subdish in a Cassegrainian reflector system.
Spectrum analyzer calibration system is rapid and provides an accurate family of adjustable markers at any point in the spectrum. Pulse width controls determine the number of markers. The unit operates with a repetition rate from 300 cps to 40 kc at a center frequency from 10 kc to 2 Mc.
Mechanical twinning for improving creep strength and low temperature ductility of refractory metals
Radar sensor tests of effects of vegetation on detection and measurement of subsurface properties
Narrative dealing with space age effect on national character
Finite difference integration applied to spherical indentation problem for viscoelastic material time response function
Signal attenuation, signal distortion, and radio noise generation due to ion engine exhaust beam
Argon FM laser, parametric oscillator, and backward wave oscillator development
Ultrasonic welding of covers on flatpack integrated circuits for producing hermetically sealed packages at high rates without exposure to high temperature
Xenon laser effect on interaction between electron gas and excited atoms in plasma