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  • AIRCRAFT DESIGN, TESTING AND PERFORMANCE  (4)
  • Acidic deposition  (1)
  • COMMUNICATIONS  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Emergence chronology of brook charr,Salvenus fontinalis, alevins in an acidic stream (1991)
    Springer
    Environmental biology of fishes 31 (1991), S. 25-31 
    Details
    ISSN: 1573-5133
    Keywords: Acidic deposition ; Snowmelt runoff ; Stream pH depressions ; Early life history ; Salmonid fish
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Synopsis The emergence chronology of brook charr alevins in the Chikanishing River, Ontario, Canada and the concurrent changes in stream chemistry resulting from acidic snowmelt runoff were examined during the spring, 1986–1988. Emergence patterns were similar among years with the most intense emergence (〉 70%) occurring during the declining stream discharge following the spring flood. This period coincided with stream pH depressions (minimum pH 5.2) in 2 of 3 years, suggesting emergence behaviour frequently subjects the earliest free-swimming life interval of brook charr to episodic acidification events.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00002155
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    Paper (German National Licenses)
    Fulltext
  • 2
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    Unique flight characteristics of the AD-1 oblique-wing research airplane (1983)
    In:  Other Sources
    Details
    Publication Date: 2011-08-18
    Description: Previously cited in issue 19, p. 2977, Accession no. A82-39106
    Keywords: AIRCRAFT DESIGN, TESTING AND PERFORMANCE
    Type: (ISSN 0021-8669)
    Format: text
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    NASA TECHNICAL REPORTS
  • 3
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    Ground-effect analysis of a jet transport airplane (1985)
    In:  Other Sources
    Details
    Publication Date: 2019-06-28
    Description: An analysis of the ground effect of a jet transport airplane has been made. Data were obtained from recent flight tests primarily using the constant angle-of-attack approach technique. Reasonable results were obtained for ground-effect pitching moment and lift increments. These were compared with data from other sources, including computations, wind tunnel, and previous flight tests. A recommended ground-effect model was developed from the results. A brief simulator study was conducted to determine the sensitivity of a particular configuration to this ground-effect model and its associated uncertainty.
    Keywords: AIRCRAFT DESIGN, TESTING AND PERFORMANCE
    Type: AIAA PAPER 85-0307
    Format: text
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    NASA TECHNICAL REPORTS
  • 4
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    Nonlinear estimation with quantized measurements - PCM predictive quantization, and data compression (1968)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: Nonlinear estimation with quantized measurements and application to pulse code modulation, data compression, and predictive quantization
    Keywords: COMMUNICATIONS
    Type: NASA-CR-97197 , RE-45
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 5
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    Display/control requirements for VTOL aircraft (1975)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: Quantative metrics were determined for system control performance, workload for control, monitoring performance, and workload for monitoring. Pilot tasks were allocated for navigation and guidance of automated commercial V/STOL aircraft in all weather conditions using an optimal control model of the human operator to determine display elements and design.
    Keywords: AIRCRAFT DESIGN, TESTING AND PERFORMANCE
    Type: NASA-CR-145026 , ASI-TR-75-26
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 6
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    Unique flight characteristics of the AD-1 oblique-wing research airplane (1982)
    In:  Other Sources
    Details
    Publication Date: 2019-07-13
    Description: Flight characteristics associated with an oblique-wing airplane have been studied with limited scope and complexity using the AD-1 research vehicle. The AD-1 is a low-speed, low-cost, manned airplane with an aeroelastically tailored wing that can be pivoted 0 to 60 deg asymmetrically. Results of the flight tests include aerodynamic parameter extraction, verification of the aeroelastic wing design criteria, trim requirements, stall characteristics, and an evaluation of the handling qualities and basic control system requirements. Some of the unique characteristics of these results that pertain to the oblique-wing design are presented.
    Keywords: AIRCRAFT DESIGN, TESTING AND PERFORMANCE
    Type: AIAA PAPER 82-1329 , Atmospheric Flight Mechanics Conference; Aug 09, 1982 - Aug 11, 1982; San Diego, CA
    Format: text
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    NASA TECHNICAL REPORTS
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