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  • 1
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    The spectral gamma ray (Spectral Gamma Ray log) tool (1984)
    In:  J. Can. Well Logging Society, Bonn, Pergamon, vol. 13, no. B3, pp. 81-96, pp. 2050, (ISBN: 0534351875, 2nd edition)
    Details
    Publication Date: 1984
    Keywords: Borehole geophys. ; Spectral Gamma Ray log
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    BIBLIOGRAPHY SEISMOLOGY
  • 2
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    Geological Applications of Logging Measurements (1984)
    Gearhart Industries
    In:  publ., Kjeller, Norway, Gearhart Industries, vol. 1, no. WS-726 9-84 R 5-85, pp. 1-438, (ISBN 3-933346-037)
    Details
    Publication Date: 1984
    Keywords: Data analysis / ~ processing ; Borehole geophys.
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    BIBLIOGRAPHY SEISMOLOGY
  • 3
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    Remote sensing for exploration - An overview (1983)
    In:  Other Sources
    Details
    Publication Date: 2011-08-18
    Description: The use of remote sensing in resource exploration is reviewed, with emphasis placed on new developments in high spectral resolution remote-sensing techniques for mineralogic and vegetation mapping. Topics discussed include aerial photography and satellite remote sensing, concepts and principles of spectral data collection, spectral properties of rocks and minerals, spectral properties of vegetation, and botanical aspects of geochemical stress. The discussion also covers applications of Landsat multispectral scanner data to lithologic and geobotanic studies and the future development of data acquisition and data interpretation techniques.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: Economic Geology and Society of Economic Geologists, Bulletin (ISSN 0361-0128); 78; 573-590
    Format: text
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    NASA TECHNICAL REPORTS
  • 4
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    Mineralogic information from a new airborne thermal infrared multispectral scanner (1983)
    In:  Other Sources
    Details
    Publication Date: 2011-08-18
    Description: The thermal IR multispectral scanner (TIMS) has been developed for airborne geologic surveys. The resststrahlen band between 8-11 microns is exhibited by interatomic stretching vibrations of Si and oxygen bound up in the crystal lattice of silicate rocks. The crystal structure of the component minerals influence the depth and position of the detected band. The TIMS has six channels, an 80 deg field of view, and a sensitivity sufficient to detect a noise equivalent change in spectral emissivity of 0.002-0.006. The six bands measured are 8.2-8.6, 8.6-9.0, 9.4-10.2, 10.2-11.2, and 11.2-12.2 microns, using HgCdTe detectors. The data are analyzed with respect to emissivity variations as a function of wavelength, using the component transformation technique called a decorrelation stretch, with spectral differences being displayed as different colors. Sample scenes from Death Valley and the Nevada Cuprite mining district are compared with visible and near-IR color composites of the same areas, revealing the superior distinctions that are available with the TIMS.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: Science (ISSN 0036-8075); 222; Oct. 7
    Format: text
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    NASA TECHNICAL REPORTS
  • 5
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    Mineral identification from orbit - Initial results from the Shuttle multispectral infrared radiometer (1982)
    In:  Other Sources
    Details
    Publication Date: 2011-08-18
    Description: The Shuttle multispectral IR radiometer (SMIRR) was designed to obtain surface reflectance data in ten spectral bands in order to evaluate the usefulness of a future imaging system for remote mineral identification. Attention was given to the 2.0-2.4 micron region, which has a wealth of spectral absorption features and appeared to have potential for the identification of CO3- and OH-bearing minerals such as the kaolinite and montmorillonite clays. SMIRR radiances were normalized by using a spectrum for dune sand collected in the Kharga Depression in Egypt. Direct identifications have been made of kaolinite-containing and carbonate material, indicating an exceptional potential for future orbital platform narrowband spectral imaging systems for mineralogical mapping.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: Science; 218; Dec. 3
    Format: text
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    NASA TECHNICAL REPORTS
  • 6
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    High spectral resolution remote sensing of the land (1984)
    In:  Other Sources
    Details
    Publication Date: 2011-08-19
    Description: Spectral remote sensing has been practiced on a large scale since the launch of Landsat 1 in 1972. The limited information contained in this spectrally undersampled data set has led to the development of sophisticated statistical-inferential methods for data analysis. The results are usually limited by the availability of ground truth information. Recent technological developments have made it feasible to create narrow-band, contiguous, spectral image data sets that make possible the identification of surface cover materials based on the complete reflectance spectrum for each picture element. This capability will revolutionize the use of remote sensing data and require new deterministic image processing techniques to extract the full information content from the data. Sensors, based on the concept of imaging spectrometry and the new technology of area array infrared detectors, have been constructed and are candidates for Shuttle and space platform flights.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
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    NASA TECHNICAL REPORTS
  • 7
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    Preliminary analysis of Shuttle multispectral radiometer data for southern Egypt (1983)
    In:  Other Sources
    Details
    Publication Date: 2011-08-18
    Description: The Shuttle Multispectral Infrared Radiometer (SMIRR) is a spectroradiometer covering the region from 0.5 to 2.5 microns in 10 channels that acquired data from spots 100 m in diameter along the subspacecraft ground track. It was flown aboard the second flight of the Space Shuttle Columbia, November 12-14, 1981. Data collected during orbit 16 over southern Egypt show that carbonate rocks, kaolinite, and possibly montmorillonite can be identified by their SMIRR spectral signatures and limited knowledge of the lithologic units present. Detailed analysis of SMIRR data for this area indicates that calcite, kaolinite, and montmorillonite rocks give rise to absorption features that result in characteristic 10 channel spectra.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: (ISSN 0273-1177)
    Format: text
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    NASA TECHNICAL REPORTS
  • 8
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    Radiometric considerations in remote sensing systems (1982)
    In:  CASI
    Details
    Publication Date: 2016-06-07
    Description: All sensors systems designed to acquire quantitative data undergo radiometric calibration. The types and potential accuracies of calibration are discussed as well as the needs for calibration in the practical application of sensors. The recent and ongoing experience with the shuttle multispectral infrared radiometer is used as a reference.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: NASA. Goddard Space Flight Center The Multispectral Imaging Science Working Group, Vol. 3; 4 p
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 9
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    The mechanical design of a vapor compressor for a heat pump to be used in space (1982)
    In:  CASI
    Details
    Publication Date: 2016-06-07
    Description: A heat pump developed for use in Spacelab as a stand-alone refrigeration unit as well as within a fluid loop system is discussed. It will provide an active thermal control for payloads. Specifications for the heat pump were established: (1) heat removal rates at the source; (2) heat source temperatures from room temperature; (3) heat-sink fluid temperatures at condenser inlet; and (4) minimum power consumption. A reversed Carnot cycle heat pump using Freon 12 as working fluid incorporating a one-cylinder reciprocating compressor was selected. The maximum crankshaft speed was fixed relatively high at 100 rpm. The specified cooling rates then made it necessary to select a cylinder volume of 10 cu cm, which was obtained with a bore of 40 mm and a stroke of 8 mm.
    Keywords: FLUID MECHANICS AND HEAT TRANSFER
    Type: NASA. Kennedy Space Center The 16th Aerospace Mech. Symp.; p 329-340
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 10
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    Design and use of a servo-controlled high pressure window bomb in spectroscopic studies of solid propellant combustion (1980)
    In:  Other Sources
    Details
    Publication Date: 2019-06-28
    Description: The feasibility of using a high pressure window bomb as a laboratory scale model of actual motor conditions. The design and operation of a modified high pressure window bomb is discussed. An optical servocontrol mechanism has been designed to hold the burning surface of a propellant strand at a fixed position within the bomb chamber. This mechanism permits the recording of visible and infrared emission spectra from various propellants. Preliminary visible emission spectra of a nonmetalized and metalized propellant are compared with spectra recorded using the modified bomb.
    Keywords: PROPELLANTS AND FUELS
    Type: NASA. Langley Research Center The 17th JANNAF Combust. Meeting, Vol. 1; p 417-434
    Format: text
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    NASA TECHNICAL REPORTS
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