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  • AIR TRANSPORTATION AND SAFETY  (3)
  • ELECTRONICS AND ELECTRICAL ENGINEERING  (3)
  • INSTRUMENTATION AND PHOTOGRAPHY  (3)
  • 1980-1984  (6)
  • 1970-1974  (3)
Collection
Keywords
Years
Year
  • 1
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    Information transfer during contingency operations: Emergency air-ground communications (1981)
    In:  CASI
    Details
    Publication Date: 2006-01-16
    Description: Safety related problems are reported which occur as a consequence of information transfer deficiencies that arise when air/ground communications are (or should be) used as a resource in inflight emergency situations. The system factors, the human errors, and the associated causes of these problem are defined.
    Keywords: AIR TRANSPORTATION AND SAFETY
    Type: Inform. Transfer Probl. in the Aviation System; p 73-83
    Format: text
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    NASA TECHNICAL REPORTS
  • 2
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    Capacitor DPA: Does it do any good? (1981)
    In:  Other Sources
    Details
    Publication Date: 2016-06-07
    Description: Methods of destructive physical analysis (DPA) are suggested which might have more usefulness if the procedures followed lines of accelerated testing. A brief presentation of DPA procedures is followed by a discussion of their value.
    Keywords: ELECTRONICS AND ELECTRICAL ENGINEERING
    Type: NASA. Marshall Space Flight Center Capacitor Technol., Appl. and Reliability; p 125-129
    Format: text
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    NASA TECHNICAL REPORTS
  • 3
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    The Sacramento Peak fast microphotometer (1984)
    In:  CASI
    Details
    Publication Date: 2019-06-28
    Description: The Sacramento Peak Observatory Fast Microphotometer translates an optical system that includes a laser and photodiode detector across the film to scan the Y direction. A stepping motor moves the film gate in the X direction. This arrangement affords high positional accuracy, low noise (0.002 RMS density units), modest speed (5000 points/second), large dynamic range (4.5 density units), high stability (0.005 density units), and low scattered light. The Fast Microphotometer is interfaced to the host computer by a 6502 microprocessor.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA. Goddard Space Flight Center Astron. Microdensitometry Conf.; p 243-254
    Format: text
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    NASA TECHNICAL REPORTS
  • 4
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    A review of in-flight emergencies in the ASRS data base (1981)
    In:  CASI
    Details
    Publication Date: 2019-06-28
    Description: A series of 154 in-flight emergencies as reported to the Aviation Safety Reporting System are described. The various types of emergencies are examined and an attempt is made to determine the human errors and other factors associated with each incident, as well as the measures taken to resolve the emergency. It is concluded that nearly one half of those emergencies reported were related to failure or malfunction of aircraft subsystems. Of all the emergencies, nearly one quarter were associated with power plant failure. Other frequently encountered emergency types are associated with operation in instrument meteorological conditions without appropriate clearance or qualification, and with low fuel state situations. Human error is prominently featured in many of the incidents, appearing in the actions of pilots and air traffic controllers.
    Keywords: AIR TRANSPORTATION AND SAFETY
    Type: NASA-CR-166166
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 5
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    An investigation of reports of Controlled Flight Toward Terrain (CFTT) (1981)
    In:  CASI
    Details
    Publication Date: 2019-06-28
    Description: Some 258 reports from more than 23,000 documents in the files of the Aviation Safety Reporting System (ASRS) were found to be to the hazard of flight into terrain with no prior awareness by the crew of impending disaster. Examination of the reports indicate that human error was a casual factor in 64% of the incidents in which some threat of terrain conflict was experienced. Approximately two-thirds of the human errors were attributed to controllers, the most common discrepancy being a radar vector below the Minimum Vector Altitude (MVA). Errors by pilots were of a much diverse nature and include a few instances of gross deviations from their assigned altitudes. The ground proximity warning system and the minimum safe altitude warning equipment were the initial recovery factor in some 18 serious incidents and were apparently the sole warning in six reported instances which otherwise would most probably have ended in disaster.
    Keywords: AIR TRANSPORTATION AND SAFETY
    Type: NASA-CR-166230
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 6
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    Wide range multi-channel analog switch (1974)
    In:  Other Sources
    Details
    Publication Date: 2019-06-27
    Description: A ten-channel analog switch has been developed as a sample and shape circuit for signals used as inputs to a logarithmic pulse height recording system. The circuit employs a field effect transistor as the switching element. Switching transients are reduced to approximately 2 mV by adding to the gated signal an inverted transient generated by an identical circuit with no signal applied. The circuit is linear to 2% from 3 mV to 10 V.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: Nuclear Instruments and Methods; 121; 1974
    Format: text
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    NASA TECHNICAL REPORTS
  • 7
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    Influence of material quality and process-induced defects on semiconductor device performance and yield (1974)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: An overview of major causes of device yield degradation is presented. The relationships of device types to critical processes and typical defects are discussed, and the influence of the defect on device yield and performance is demonstrated. Various defect characterization techniques are described and applied. A correlation of device failure, defect type, and cause of defect is presented in tabular form with accompanying illustrations.
    Keywords: ELECTRONICS AND ELECTRICAL ENGINEERING
    Type: NASA-CR-120557
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 8
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    The VPI&SU multiple polarization plane ZDR radar - The OCTOPOD radar (1983)
    In:  Other Sources
    Details
    Publication Date: 2019-07-13
    Description: The 'OCTOPOD' radar extends the concept of differential reflectivity (ZDR) to multiple polarization planes, so that ZDR measurements can be made in any pair of orthogonal linear polarizations. This allows the mean canting angle of oblate raindrops or ice particles to be determined. Attention is given to the radar hardware employed, the rotating feed system that generates the multiple polarization planes, and the computer controlled data acquisition system which extracts both reflectivity and ZDR data.
    Keywords: ELECTRONICS AND ELECTRICAL ENGINEERING
    Type: Conference on Radar Meteorology; Sep 19, 1983 - Sep 23, 1983; Alberta; Canada
    Format: text
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    NASA TECHNICAL REPORTS
  • 9
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    Cosmic-ray cascades photographed in scintillator (1974)
    In:  Other Sources
    Details
    Publication Date: 2019-07-13
    Description: Light produced by nuclear-electromagnetic cascades in a plastic scintillator can be photographed, and the resulting images on film used to measure both the energy content of the cascades and also the positions at which the cascades passed through the scintillator. The energy content of a cascade can be measured to 20% and its position determined to plus or minus 0.8 cm in each scintillator. Techniques for photographing the cascades and analyzing the film are described. Sample data are presented and discussed.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: International Cosmic Ray Conference; Aug 17, 1973 - Aug 30, 1973; Denver, CO
    Format: text
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    NASA TECHNICAL REPORTS
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