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There are a total of 516542 record(s) matching your query.
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The Kolar Schist Belt: A possible Archaean suture zone
Author(s): Hanson, G. N.; Krogstad, E. J.; Ragamani, V.; Balakrishnan, S.
Abstract: The Kolar Schist Belt represents a N-S trending discontinuity in the structures, lithologies, and emplacement and metamorphic ages of late Archean gneisses. The suggestion of a much older basement on the west side of the ...
NASA Center: NASA (non Center Specific)
Publication Year: 1986
Added to NTRS: 2008-11-04
Accession Number: 86N23108; Document ID: 19860013637
Compilation of cosmogenic radionuclides in meteorites
Author(s): Nishiizumi, K.
Abstract: All available data for the concentration of cosmogenic nuclides Mn-53(t(1/2) = 3.7 x 10(6) years), Al-26 (7.05 x 10(5) years), Be-10 (1.6 x 10(6) years), Cl-36 (3.0 x 10(5) years) and Ne-21, and Ne-22/Ne-21 ratios in stony, ...
NASA Center: NASA (non Center Specific)
Publication Year: 1986
Added to NTRS: 2008-11-04
Accession Number: 86N32362; Document ID: 19860022890
Heat flow and heat generation in greenstone belts
Author(s): Drury, M. J.
Abstract: Heat flow has been measured in Precambrian shields in both greenstone belts and crystalline terrains. Values are generally low, reflecting the great age and tectonic stability of the shields; they range typically between 30 ...
NASA Center: NASA (non Center Specific)
Publication Year: 1986
Added to NTRS: 2008-11-04
Accession Number: 86N23101; Document ID: 19860013630
Utilization and dissipation of waste heat by soil warming
Author(s): Dewalle, D. R.
Abstract: No Abstract Available
NASA Center: NASA (non Center Specific)
Publication Year: 1977
Added to NTRS: 2008-11-04
Accession Number: 77N78673; Document ID: 19770077453
An X-band radiometer for the microwave weather project
Author(s): Reid, M. S.; Parham, O. B.; Gardner, R. A.
Abstract: A stabilized high resolution X-band radiometer was designed, constructed, and is presently operating at the Venus Deep Space Station in the Goldstone Deep Space Communications Complex in California. The radiometer is an ...
NASA Center: Jet Propulsion Laboratory
Publication Year: 1975
Added to NTRS: 2008-11-04
Accession Number: 76N14303; Document ID: 19760007215
Dust collection on serviceable satellites
Author(s): Nuth, J. A., III
Abstract: One rationale for the Space Shuttle program which was dramatically realized during the repair of the Solar Maximum Mission (SMM) is the efficiency of in-orbit satellite servicing. An unexpected benefit of this repair mission ...
NASA Center: NASA (non Center Specific)
Publication Year: 1986
Added to NTRS: 2008-11-04
Accession Number: 86N30599; Document ID: 19860021127
Preliminary designs for X-ray source modifications for the Marshall Space Flight Center's X-ray calibration facility
Author(s): Croft, W. L.
Abstract: The objective of this investigation is to develop preliminary designs for modifications to the X-ray source of the MSFC X-Ray Calibration Facility. Recommendations are made regarding: (1) the production of an unpolarized ...
NASA Center: Marshall Space Flight Center
Publication Year: 1986
Added to NTRS: 2008-11-04
Accession Number: 86N24517; Document ID: 19860015046
ROSAT PSPC and HRI observations of the composite starburst/Seyfert 2 galaxy NGC 1672
Author(s): Brandt, W. N.; Halpern, Jules P.; Iwasawa, K.
Abstract: The nearby barred spiral galaxy NGC 1672 has been observed with the Position Sensitive Proportional Counter (PSPC) and High Resolution Imager (HRI) instruments on board the ROSAT X-ray satellite. NGC 1672 is thought to have ...
NASA Center: NASA (non Center Specific)
Publication Year: 1995
Added to NTRS: 2008-11-04
Accession Number: 96N13428; Document ID: 19960003419
Heating of greenhouses with tepid water
Author(s): Fourcy, A.; Dumont, M.; Freychet, A.
Abstract: No Abstract Available
NASA Center: NASA (non Center Specific)
Publication Year: 1977
Added to NTRS: 2008-11-04
Accession Number: 77N78662; Document ID: 19770077442
Analysis of automatic repeat request methods for deep-space downlinks
Author(s): Pollara, F.; Ekroot, L.
Abstract: Automatic repeat request (ARQ) methods cannot increase the capacity of a memoryless channel. However, they can be used to decrease the complexity of the channel-coding system to achieve essentially error-free transmission ...
NASA Center: Jet Propulsion Laboratory
Publication Year: 1995
Added to NTRS: 2008-11-04
Accession Number: 96N16644; Document ID: 19960009478
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