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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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Blunt models shock heated stagnation zone radiation intensity spectroscopy in high temperature plasma tunnel tests simulating Mars atmospheric probes
Time history of July 7-10 1966 PCA event analyzed using 16 riometers and concurrent satellite observations of solar cosmic radiation
Elastic buckling and initial postbuckling behavior of clamped shallow spherical shells under axisymmetric load
Solar protons delayed access into polar regions during 2 November 1967 solar particle event, discussing north-south asymmetry
Computer program for compressing program source decks and other data coded in Hollerith format is described. Compression of card image record by substitution of special code characters is discussed. Program is written for IBM 360/75/95 Release 19 computer.
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The paper calculates the acceleration of a nonneutral stream of charged particles from the surface of an isolated rotating magnetized neutron star in the case where the particle stream flows along the open field lines of a curved poloidal magnetic field. It is shown that very large electrostatic potential drops can occur in steady unidirectional space-charge-limited flow along the curved open field lines. The explicit incorporation of magnetic field line curvature is the essential element leading to this new result, assuming that all the charges are supplied by emission from the surface. It is emphasized that the current flow and charge density are unique if all of the assumptions are met, with the result that the accelerating electric field near the stellar surface is quite small compared to the vacuum field.
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The technology required to develop a beam builder which automatically fabricates long, continuous, lightweight, triangular truss members in space from graphite/thermoplastics composite materials is described. Objectives are: (1) continue the development of forming and welding methods for graphite/thermoplastic (GR/TP) composite material; (2) continue GR/TP materials technology development; and (3) fabricate and structurally test a lightweight truss segment.
A plasma decrease event has been observed in the dawn sector during large magnetic storms. Supporting plasma data from ATS-6 and GEOS-1 satellites are used to argue that this type of decrease is similar to the midnight-sector plasma-sheet boundary crossing. Implications of such a boundary crossing near dawn for the storm time magnetic field are discussed.
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