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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 433 records · Page 24

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DOE OSTI2025

Modeling Protocol for Evaluation of Air Emissions for the Idaho National Laboratory Site-wide Permit to Construct and Facility Emission Cap (PTC/FEC)

This document outlines the methods to be used for calculating non-radiological air quality impacts from proposed emissions at the Idaho National Laboratory (INL) Site in support of applying for a renewal to a Permit to Construct with a Facility Emissions Cap (PTC/FEC). The INL Site is seeking to maintain a state enforceable limit on emissions to maintain synthetic minor status in accordance with Idaho Administrative Procedures Act (IDAPA) 58.01.01.175-181 and IDAPA 58.01.01.200-228.

54 ENVIRONMENTAL SCIENCES↗

NASA NTRS1962

COMPARISON OF EXPERIMENTAL AND THEORETICAL BUCKLING PRESSURES FOR SPHERICAL CAPS

Comparison of experimental and theoretical buckling pressures for spherical caps

SHELL STABILITY↗

NASA NTRS1965

The influence of geomagnetic activity on polar cap absorption

Cosmic noise absorption data on polar cap analyzed for geomagnetic activity

NOISE SPECTRUM↗

NASA NTRS1965

Interplanetary magnetic field asymmetries and their effects on polar cap absorption events and forbush decreases.

Flare plasma cloud model with magnetic field asymmetry for solar-terrestrial system with reference to polar cap absorption and Forbush decrease

INTERPLANETARY MAGNETIC FIELD↗

NASA NTRS1965

Analysis of polar cap absorption events. I - Effect of solar and solar induced conditions prior to the PCA events Final report

Solar phenomena analysis associated with polar cap absorption events from solar flare protons for prediction space radiation conditions

SOLAR FLARE↗

NASA NTRS1966

Analysis of polar cap absorption events. II - Time relation of major flares and rf emissions at centimeter wavelengths First quarterly report

Polar cap absorption analysis - time relation of major flares and radio frequency emissions at centimeter wavelengths

POLAR CAP ABSORPTION↗

NASA NTRS1965

The influence of geomagnetic activity on polar cap absorption.

Polar cap absorption riometer data compared for Thule, Greenland and College, Alaska for determining geomagnetic activity influence

POLAR CAP ABSORPTION↗

NASA NTRS1965

Polar cap absorption on VLF emissions.

Polar cap absorption effect on polar VLF EMISSIONS used for analysis of solar proton events

POLAR CAP ABSORPTION↗

NASA NTRS1966

Entry of solar cosmic rays into the polar cap atmosphere

Onset patterns of polar cap atmosphere due to enhanced ionization caused by penetrating solar cosmic ray particles

SOLAR COSMIC RAY↗

NASA NTRS1967

The polar cap absorption on July 7-10, 1966

Time history analysis for polar cap absorption of solar flare in July, 1966

POLAR CAP ABSORPTION↗

NASA NTRS1967

Entry of solar cosmic rays into the polar cap atmosphere.

Three stages of solar cosmic rays entry into polar cap atmosphere due to differential arrival of solar electrons, protons and alpha particles

SOLAR COSMIC RAY↗

NASA NTRS1967

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

Polar cap absorption on July 1966, discussing solar flare, radio outburst, proton intensity, geomagnetic latitude, etc

SOLAR RADIATION↗

NASA NTRS1967

Diurnal intensity variation of low-energy electrons observed near the polar cap.

Electron flux and energy spectrum measurements near polar cap investigated for diurnal intensity variations

ELECTRON FLUX↗

NASA NTRS1998

Construction of a High-Resolution DEM of an Arctic Ice Cap Using Shape-from-Shading

In this paper we investigated the possibility of using a shape-from-shading technique, applied to a Landsat MSS image, to create a high spatial resolution DEM of Austfonna, an ice cap in Svalbard.

DEM digital elevation models ice sheets altimetry ↗

NASA NTRS1996

Wideband Plasma Waves in the Polar Cap Boundary Layer: Polar Observations

Recent Polar plasma wave observations indicate that intense wideband waves are always present in the polar cap boundary layer (PCBL) region.

plasma wave data enhanced wideband waves polar cap↗

NASA NTRS2005

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

In this paper, we evaluate our method on uncalibrated THEMIS data and find 1) agreement with manual cap edge identifications to within 28.2 km, and 2) high accuracy even with a reduced context window, yielding large reductions in memory requirements.

Mars polar caps↗

NASA NTRS2011

Variations in Surface Texture of the North Polar Residual Cap of Mars

The northern polar residual cap (NPRC) of Mars is a water ice deposit with a rough surface made up of pits, knobs, and linear depressions on scales of tens of meters. This roughness manifests as a series of bright mounds and dark hollows in visible images; these bright and dark patches have a characteristic wavelength and orientation. Spectral data indicate that the surface of the NPRC is composed of large-grained (and therefore old) water ice. Due to the presence of this old ice, it is thought that the NPRC is in a current state of net loss of material a result potentially at odds with impact crater statistics, which suggest ongoing deposition over the past 10-20 Kyr.

Mars↗

NASA NTRS1994

Spatial Variability in the Seasonal South Polar Cap of Mars

We present the first comprehensive discussion of the south seasonal polar cap spectra obtained by the Mariner7 Infrared Spectrometer in the short wavelength region (2-4 µm).

Mars↗