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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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Fixed light source registers the x and y coordinates of holes in a fixed opaque template. A first surface parabolic mirror and a set of photocells are used to detect the passage of light through the individual holes.
Geomagnetic field models for calculating sample distribution of conjugate points
Laser ranging to lunar retroreflectors
Irreversible quantum statistics for electron mobility analysis in low temperature helium
Improved coordinates for MADGAR range and range rate tracking site, Madagascar, estimated from Explorer 29 /GEOS 1/ satellite data
Interplanetary space trajectories based on Jupiter swingby flights
Numerical analysis of shock control by using perforated walls in internal compression supersonic inlets
Meteorological data interpolation techniques for computing horizon radiance profiles evaluated for possible error introductions
X ray source in constellation Vela lying close to galactic plane observed by attitude controlled Aerobee 150 rocket
Magnetic dip equator position at E layer and gradient with time and altitude, using geomagnetic field models
Portable electronic device, based on the design of an eddy current gage, detects ferrous and nonferrous metal fragments. Device is more easily transported than X-ray equipment and does not present a radiation hazard.
Geosynchronous satellite borne interferometer system for determining meteorological balloon positions
Magnetic activity effect on magnetospheric plasmapause position, measuring ion concentrations as function of local time from OGO 5 observations
X ray sources celestial positions in Sagittarius region, using rocket-borne rotating modulation collimator
Alternate choices to X-ray use in detecting foreign materials in metal assemblies are available, including negative radiography, neutron radiography, liquid-crystal inspection and ultrasonics. Advantages and disadvantages of each method are given. Report is valuable in testings and inspections, including heat exchangers and piping systems.
Microleak detector mounted on weld seam of propellant tank of launch vehicle
Selenographic coordinates of lunar topography from Apollo 8, 10, 11, and 12 missions
Considering lack of development of endemic species in Iceland