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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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At least 487 records · Page 27

All sources NASA NTRS DOE OSTI

NASA NTRS2005

An onboard data analysis method to track the seasonal polar caps on Mars

Explore the source record for details and available documents.

onboard data analysis↗

NASA NTRS2000

A novel approach to exploring the Mars polar caps

UNKNOWN

Mars↗

NASA NTRS1996

Properties of Hydromagnetic Waves in the Polar Caps: Ulysses

UNKNOWN

Ulysses↗

NASA NTRS1998

A Generation Mechanism for the Polar Cap Boundary Layer Broadband Plasma Waves

A generalized dispersion relation for the coupled lower hybrid, whistler, and current convective modes is obtained. It is found that the presence of density gradients, the current convective modes develop a finite real frequency, but at the same time their growth rates are reduced.

broadband↗

NASA NTRS1966

The neutron flux in space following a polar cap neutron event on November 15, 1960

A neutron detector flown on an Atlas pod during the 15 November 1960 solar event measured a larger neutron flux than another detector flown on a similar vehicle during a quiet solar period. The excess neutron flux at low latitudes obtained by comparing these two measurements is about an order of magnitude higher than expected from the neutron production in the atmosphere by solar protons as deduced from Lingenfelter's calculations and Webber's model for the 15 November event. It is suggested that most of the discrepancy can be accounted for by considering neutron production by energetic solar alpha particles and lowered geomagnetic cutoffs.

NEUTRON FLUX↗

NASA NTRS1968

Spectroscopic study of the gas-cap radiation intensity for simulated Martian atmospheric probes.

Blunt models shock heated stagnation zone radiation intensity spectroscopy in high temperature plasma tunnel tests simulating Mars atmospheric probes

Croce, P. A.↗

NASA NTRS1969

The polar-cap absorption on 7-10 July 1966.

Time history of July 7-10 1966 PCA event analyzed using 16 riometers and concurrent satellite observations of solar cosmic radiation

Hakura, Y.↗

NASA NTRS1969

The buckling and post-buckling behavior of spherical caps under axisymmetric load.

Elastic buckling and initial postbuckling behavior of clamped shallow spherical shells under axisymmetric load

Budiansky, B.↗

NASA NTRS1969

Access of solar protons into the polar cap - A persistent north-south asymmetry.

Solar protons delayed access into polar regions during 2 November 1967 solar particle event, discussing north-south asymmetry

Evans, L. C.↗

NASA NTRS1972

Source deck compression and update program (CAPS)

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.

Merrill, E. O.↗

NASA NTRS1967