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  • Other Sources  (7)
  • 2020-2022
  • 1985-1989  (5)
  • 1960-1964  (2)
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  • 1
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    RESULTS OF A TEST-TO-FAILURE PROGRAM ON ELECTRONIC PARTS (1962)
    In:  CASI
    Details
    Publication Date: 2006-10-26
    Description: Reliability testing - test-to-failure of electronic components
    Keywords: THERMODYNAMICS AND COMBUSTION
    Format: text
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    NASA TECHNICAL REPORTS
  • 2
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    ORIGIN OF BLACK SPHERULES FROM PACIFIC ISLANDS, DEEP SEA SEDIMENTS AND ANTARCTIC ICE (1962)
    In:  CASI
    Details
    Publication Date: 2012-03-08
    Description: Origin of black spherules from pacific islands, deep sea sediments and antarctic ice
    Keywords: FLUID MECHANICS
    Format: text
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    NASA TECHNICAL REPORTS
  • 3
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    The great dust storm of 1986 (1987)
    In:  CASI
    Details
    Publication Date: 2013-08-31
    Description: It is reported that on the global scale, no major dust storm activity was seen during telescopic observations of Mars during the several months or so preceeding this conference. However, the corresponding season on Mars was early fall, which is at the beginning of the dust storm season. It was too early to tell, therefore, if a great dust storm was going to occur that year. Current observations and what they show about present atmospheric conditions and the recession of the South Polar Cap is discussed.
    Keywords: LUNAR AND PLANETARY EXPLORATION
    Type: Lunar and Planetary Inst., MECA Symposium on Mars: Evolution of its Climate and Atmosphere; p 76-77
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 4
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    A schema-based model of situation awareness: Implications for measuring situation awareness (1988)
    In:  CASI
    Details
    Publication Date: 2013-08-31
    Description: Measures of pilot situation awareness (SA) are needed in order to know whether new concepts in display design help pilots keep track of rapidly changing tactical situations. In order to measure SA, a theory of situation assessment is needed. Such a theory is summarized, encompassing both a definition of SA and a model of situation assessment. SA is defined as the pilot's knowledge about a zone of interest at a given level of abstraction. Pilots develop this knowledge by sampling data from the environment and matching the sampled data to knowledge structures stored in long-term memory. Matched knowledge structures then provide the pilot's assessment of the situation and serve to guide his attention. A number of cognitive biases that result from the knowledge matching process are discussed, as are implications for partial report measures of situation awareness.
    Keywords: MAN/SYSTEM TECHNOLOGY AND LIFE SUPPORT
    Type: NASA. Lyndon B. Johnson Space Center, 2nd Annual Workshop on Space Operations Automation and Robotics (SOAR 1988); p 227-231
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 5
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    Circumpolar hoods and clouds and their relation to the Martian H2O cycle (1988)
    In:  CASI
    Details
    Publication Date: 2019-06-28
    Description: Water exists in both vapor and solid phases in the Martian atmosphere. The polar hoods are shrouds of condensate clouds which obscure both polar regions at times during their respective fall and winter seasons. The hemispheric asymmetries in the polar hood clouds are reviewed and their significance to the seasonal water cycle is discussed. Comparisons of images acquired using short wavelength filters, which provide maximum cloud contrast, and long wavelength filters, which are sensitive to surface features including the surface cap, provide correlations between cloud formation and large scale planetary dynamics.
    Keywords: LUNAR AND PLANETARY EXPLORATION
    Type: Lunar and Planetary Inst., MECA Workshop on Atmospheric H2O Observations of Earth and Mars. Physical Processes, Measurements and Interpretations; p 56-57
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    NASA TECHNICAL REPORTS
  • 6
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    Photoelectric photometry of asteroid 69 Hesperia (1985)
    In:  Other Sources
    Details
    Publication Date: 2019-06-28
    Description: UBV photometric observations of the M asteroid 69 Hesperia, obtained using single-channel photometers on the 31-in. and 42-in. reflectors at Lowell Observatory and on the 24-in. reflector at Mauna Kea Observatory during the apparition of August-November 1977, are reported. The data are presented in tables and graphs and analyzed. Findings presented include minimal temporal or phase-angle-dependent light-curve fluctuations, evidence for large-scale albedo variegation of a few percent, synodic rotation period 5.65537 + or - 0.00064 h, zero-phase color indices B-V = 0.68 mag and U-B = 0.24 mag, B-V phase reddening 0.003 mag/deg, and absolute zero-phase primary maximum magnitude V = 7.04.
    Keywords: ASTRONOMY
    Type: Astronomy and Astrophysics Supplement Series (ISSN 0365-0138); 61; 291-297
    Format: text
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    NASA TECHNICAL REPORTS
  • 7
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    Photoelectric observations of asteroids 3, 24, 60, 261, and 863 (1989)
    In:  Other Sources
    Details
    Publication Date: 2019-07-12
    Description: Observations of the five asteroids designated 3 Juno, 24 Themis, 60 Echo, 261 Prymo, and 863 Benkoela over the 1978-1984 period have been subjected to Fourier analysis to obtain composite lightcurves. The method yields a rotation-period value, mean absolute magnitudes for each night of observation, and Fourier coefficients that define composite-lightcurve shape, with formal error estimates for all quantities. The first three of the asteroids listed exhibit significant variation in surface albedo.
    Keywords: LUNAR AND PLANETARY EXPLORATION
    Type: Icarus (ISSN 0019-1035); 77; 171-186
    Format: text
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    NASA TECHNICAL REPORTS
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