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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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Radio astronomy studies using high sensitivity antenna arrays - lunar occultations of Crab Nebula, solar radio bursts, and long wavelength observations of radio stars
Four mile antenna grating array for long wavelength observations of star transits
Calorimeter for analyzing quality of alkali metal vapor in turbogenerator
On-line sensor and indicator for measuring oxygen content in liquid metals
Wind tunnel simulation of microscale atmospheric circulation and turbulence in low altitudes
Field effect electrometer amplifier for measuring ionospheric electric fields by sounding rockets and satellites
Foam rigidizing for inflatable paraboloidal solar collector
Interplanetary scintillation observations from solar wind inhomogeneities
Ballistic reentry trajectories at hypersonic speed
Solar radio emission spectroheliograms at different millimeter wave frequencies
Electron deflection instrument for measuring surface electric field strength
Kaufman thrustor with curved stainless steel accelerating-grid system, studying operation, efficiency, plasma instability, etc
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Electromagnetic device accurately indicates the responses of various sensors in high performance flight research aircraft to conditions encountered in flight. The device responds to sensor inputs to move a slideable armature along an indicator scale by the force of currents induced in the armature winding.
E-band thermistor mount and a technique for adjusting a temperature compensating thermistor to provide an electrically balanced bridge are used for measuring RF power in the mm-wavelength. The mount is relatively insensitive to temperature effects that cause measurement errors in single ended circuits.
Hazardous circuit ohmmeter is of sufficiently low energy output that it may be used to test extremely sensitive circuits safely, reliably, and accurately. A polyurethane-foam-lined aluminum case provided protection for the unit assembly.
Inflation, and drag characteristics of disk gap band parachute in simulated low density Mars atmosphere
Inflation, drag, and stability characteristics of ringsail parachute deployed in simulated Mars atmosphere