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  • 1
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    Ge photocapacitive MIS infrared detectors (1979)
    In:  Other Sources
    Details
    Publication Date: 2019-06-27
    Description: An undoped Ge photocapacitive detector is reported which has peak normalized detectivities at wavelengh 1.4 microns and chopping frequencies 13-1000 Hz of 9 x 10 to the 12th, 4 x 10 to the 9th cm Hz to the 1/2th/W operating respectively at temperatures 77, 195, and 295 K. The observed temperature, spectral, and frequency response of the signal and noise are explained in terms of the measured space charge and interface state properties of the device.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: Journal of Applied Physics; 50; Dec. 197
    Format: text
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    NASA TECHNICAL REPORTS
  • 2
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    The Viking seismic experiment (1976)
    In:  Science, Luxembourg, EGS-Gauthier-Villars, vol. 194, no. 6717, pp. 1318-1321, pp. 2324
    Details
    Publication Date: 1976
    Keywords: Deep seismic sounding (espec. cont. crust) ; Project report/description ; Toksoez ; Toksoz
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    BIBLIOGRAPHY SEISMOLOGY
  • 3
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    Empirical spectral analysis revisited (1977)
    Academic Press
    In:  Professional Paper, Open-File Rept., Topics in Numerical Analysis, Bath, Academic Press, vol. 3, no. 16, pp. 13-21, (ISBN 1-86239-165-3, vi + 330 pp.)
    Details
    Publication Date: 1977
    Keywords: Spectrum ; Spectral analysis
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    BIBLIOGRAPHY SEISMOLOGY
  • 4
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    Crustal structure in Southeast Bavaria derived from seismic-refraction measurements by ray-tracing methods. (1976)
    Springer Verlag
    In:  Bull., Polar Proj. OP-O3A4, Explosion Seismology in Central Europe, Berlin, Springer Verlag, vol. 22, no. 4, pp. 339-346, (ISBN 0080419208)
    Details
    Publication Date: 1976
    Keywords: Seismics (controlled source seismology) ; Refraction seismics ; Ray tracing ; Geol. aspects ; Seismic stratigraphy ; Deep seismic sounding (espec. cont. crust)
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    BIBLIOGRAPHY SEISMOLOGY
  • 5
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    Simulation studies for a nuclear photon pumped excimer laser (1979)
    In:  CASI
    Details
    Publication Date: 2006-07-17
    Description: Simulation studies were undertaken to determine the feasibility of a nuclear photon pumped excimer laser using a system where high pressure Xe is bombarded with electrons and protons to form 1720 A. Primary measurements included conversion efficiency and gain vs time measurements.
    Keywords: LASERS AND MASERS
    Type: NASA. Langley Res. Center Nucl.-Pumped Lasers; p 113-116
    Format: text
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  • 6
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    Quick-look decoding schemes for DSN convolutional codes (1979)
    In:  CASI
    Details
    Publication Date: 2006-06-01
    Description: Decoding schemes are proposed for the tracking systems of the galileo project. Quick look decoding schemes requiring only shift registers are given for the DSN (7, 1/2) and (7, 1/3) convolutional codes. These schemes are used when the communication channel is error free. The schemes decode the data, symbol errors, and the lack of node syncronization.
    Keywords: CYBERNETICS
    Type: The Deep Space Network; p 162-166
    Format: text
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  • 7
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    The effects of prolonged exposure to weightlessness on postural equilibrium (1977)
    In:  CASI
    Details
    Publication Date: 2006-01-16
    Description: A postflight postural equilibrium rail tests on spacecrews was used to prove a pronounced decrement in ability to maintain an upright posture after prolonged exposure to weightlessness. Support for the hypothesis that central neural reorganization occurs in response to environmental change is obtained when postflight decrease in stability on the rails and the time course for recovery are compared with preflight performance.
    Keywords: AEROSPACE MEDICINE
    Type: Biomed. Results from Skylab; p 104-112
    Format: text
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    NASA TECHNICAL REPORTS
  • 8
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    Information flow of land and water-related data in the State of Wisconsin (1975)
    In:  CASI
    Details
    Publication Date: 2006-01-12
    Description: Digital data from the infrared LANDSAT imagery were used to classify eutrophication levels of lakes in an effort to observe the effect of thermal discharges from power stations. LANDSAT data were also applied to identify and monitor wetlands, for soil surveys, sedimentation transport, and in general to assist in land use planning and resources management.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: NASA. Lyndon B. Johnson Space Center NASA Earth Resources Survey Symp., Vol. 2-B; p 291-296
    Format: text
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    NASA TECHNICAL REPORTS
  • 9
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    Maneuver analysis (1979)
    In:  CASI
    Details
    Publication Date: 2006-01-16
    Description: The maneuver design for Viking was accomplished in two phases. First, there was the preflight design and strategy development that was dictated by mission objectives and requirements. Orbit determination and maneuver execution accuracy statistics were used, together with propellant budget considerations, to determine specific maneuver requirements and strategies. The second phase of the maneuver design occurred in flight. The maneuver analyses that were performed in flight, the software that was employed, and the actual inflight results for the entire orbital phase of the nominal Viking Mission are described with emphasis on prelanding objectives and geometry considerations. The actual adaptive design and implementation of the maneuvers as the mission progressed are considered. This design process included the minimization of both propellant usage and the effects of maneuver execution errors, while complying with several mechanization constraints.
    Keywords: LAUNCH VEHICLES AND SPACE VEHICLES
    Type: Viking Navigation; p 153-211
    Format: text
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    NASA TECHNICAL REPORTS
  • 10
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    Experiment M131. Human vestibular function (1977)
    In:  CASI
    Details
    Publication Date: 2006-01-16
    Description: The lower susceptibility to vestibular stimulation aloft, compared with that on ground under experimental conditions, is attributed to a precondition, namely, either there is no need to adapt, or, as exemplified by the Skylab 3 pilot, adaptation to weightlessness is achieved. Findings in some of the astronauts emphasize the distinction between two categories of vestibular side effects: immediate reflex phenomena (illusions, sensations of turning, etc.), and delayed epiphenomena that include the constellation of symptoms and syndromes comprising motion sickness. The drug combinations 1-scopolamine and d-amphetamine and promethazine hydrochloride and ephedrine sulfate are effective in prevention and treatment of motion sickness. It is concluded that prevention of motion sickness in any stressful motion environment involves selection, adaptation, and the use of drugs.
    Keywords: AEROSPACE MEDICINE
    Type: Biomed. Results from Skylab; p 74-103
    Format: text
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    NASA TECHNICAL REPORTS
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