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Results for “circular”

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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At least 1,063 records · Page 59

All sources NASA NTRS DOE OSTI

NASA NTRS1970

Discovery of circularly polarized light from a white dwarf

White dwarf star circular polarized light, indicating strong magnetic field

Angel, J. R. P.↗

NASA NTRS1970

Lamb shift with circularly polarized rf-field in foil-excited H beam

Time and power dependent Lamb shift resonance shapes measurement with circular polarized RF field in beam foil excited H atoms

Andrae, H. J.↗

NASA NTRS1970

Two-channel feed system - A dual channel circularly polarized system. I

Parabolic antenna properties generated by dual band circularly polarized focused two channel monopulse feed system, discussing tracking data from helicopter, Apollo 8 and Cassiopeia A

Chadwick, G. G.↗

NASA NTRS1970

Lunar maria and circular basins - A review

Lunar maria and circular basins interrelations, form, origin and distribution from Lunar Orbiter photographs

Howard, K. A.↗

NASA NTRS1970

Radiation of sound from an unflanged circular duct with flow

Sound radiation from unflanged circular waveguide duct with flow, calculating reflection coefficients, directivity pattern and power for comparison with approximate methods

Drischler, J. A.↗

NASA NTRS1970

Peristaltic transport in circular cylindrical tubes

Long wave approximation for peristaltic transport in circular cylindrical tube, noting inertia and wavelength effects on backward flow

Li, C.-H.↗

NASA NTRS1970

Two-channel feed system - A dual channel circularly polarized system. II

Dual channel circularly polarized feed of monopulse tracking antenna system, noting axial ratio and gain and open loop mode autotracking

Chadwick, G. G.↗

NASA NTRS1971

Wide-angle, circularly polarized, omnidirectional-array antenna

Modified conventional turnstile antenna features bifoliate pattern with relatively high gain and good circularity over solid area enclosed by the 0.26 and 1.31 radian angles of elevation. These antennas are intended for high altitude balloon use, their permissible weight is restricted to one pound.

Boyer, R. B.↗

NASA NTRS1970