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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Feasibility of constructing large antenna array and interferometer for radio astronomy studies and spectral observations of discrete sources, sun, and Galaxy
Water vapor absorption spectra in submillimeter wave region, analog-to-digital conversion and recording system, and carbon dioxide laser construction
Radio observation of thermal radiation intensities from Moon and Venus for surface temperature determination
Layered structure model for lunar surface based on thermal radiation observations
Degree of coherence of optical beam traversing atmospheric medium including simulated fog for design of optical heterodyne receiver
Interstellar polarization measurement for eight stars
Comparison of Mars reflection characteristics in optical and radio bands
Thermistor mount for dc potentiometer insertion loss test set
Maps of 2-cm brightness distribution of various radio sources including Taurus and Orion
Center-to-limb variations for continuum, faint iron lines and core of strong Fraunhofer lines measured along polar and equatorial diameters of solar disk
Coincidences in measured positions of absorption lines in spectra of quasi-stellar objects
Plasma electron density measurement method using beat frequencies between two dual frequency lasers
Earth atmosphere humidity profiles and cloud densities interpreted from 1 cm microwave absorption measurement, water vapor resonance and radiosonde measurement
An optical integrating sphere with a faceted reflective lining on the inside surface will provide light randomization /mixing of diffusely and specularly reflected light/ with relatively few reflections. The improved sphere has a sufficiently high reflectivity for both visible and infrared radiation.
Decametric observations of Jupiter during 1967 apparition
Passive microwave meteorology techniques for measuring water vapor densities and cloud water content
Transmittance of thin films and photoionization of gases in selective detectors set for photons in ultraviolet spectrum
Brightness distribution of local source over sunspot group during solar eclipse