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  • AERODYNAMICS  (460)
  • ENERGY PRODUCTION AND CONVERSION  (373)
  • Fisheries
  • Industrial Chemistry
  • 2020-2023
  • 1975-1979  (833)
  • 1950-1954
  • 1976  (833)
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  • 2020-2023
  • 1975-1979  (833)
  • 1950-1954
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  • 1
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    Space power demonstration stations (1976)
    In:  Other Sources
    Details
    Publication Date: 2019-08-28
    Description: NASA major planning decisions from 1955 to date are summarized and new concepts connected with the advent of the Space Transportation Systems (STS) are set forth. The future Shuttle utilizations are considered, from 'manned booster' function for space transportation to such operations as deployment of modules and stations and assembly of large structures in space. The permanent occupancy of space will be a major goal of the space systems development in the 1980's with the following main phases: (1) achievement of easy access to earth orbit by means of the Shuttle and Spacelab; (2) achievement of permanent occupancy (Space Stations); (3) self-sufficiency of man in space. New techniques of space operation will become possible, using much larger, complicated satellites and simplified ground stations. Orbital assembly of large stations, using a permanent base in orbit, will enable practical utilization of space systems for everyday needs. Particular attention is given to the space solar power concept, involving the location in space of large satellite systems. Results of the studies on Manned Orbital Systems Concept (MOSC) and some future possibilities of Space Stations are analyzed.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: International Meeting on Utilization of Space Shuttle and Spacelab; Jun 02, 1976 - Jun 04, 1976; Bonn
    Format: text
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    NASA TECHNICAL REPORTS
  • 2
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    Energy: A continuing bibliography with indexes, issue 9, April 1976 (1976)
    In:  CASI
    Details
    Publication Date: 2019-08-28
    Description: This bibliography lists 345 reports, articles, and other documents introduced into the NASA scientific and technical information system from January 1, 1976 through March 31, 1976.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: NASA-SP-7043(09)
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 3
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    Energy: A continuing bibliography with indexes, issue 8, February 1976 (1976)
    In:  CASI
    Details
    Publication Date: 2019-08-28
    Description: This bibliography lists 397 reports, articles, and other documents introduced into the NASA scientific and technical information system from October 1, 1975 through December 31, 1975.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: NASA-SP-7043(08)
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 4
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    The technology assessment of LTA aircraft systems (1976)
    In:  CASI
    Details
    Publication Date: 2019-08-28
    Description: The advantages of conventional small and large airships over heavier than air aircraft are reviewed and the need for developing hybrid aircraft for passenger and heavy charge transport is assessed. Performance requirements and estimated operating costs are discussed for rota-ships to be used for short distance transportation near large cities as well as for airlifting civil engineering machinery and supplies for the construction of power stations, dams, tunnels, and roads in remote areas or on isolated islands.
    Keywords: AERODYNAMICS
    Type: NASA-TM-75535
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    NASA TECHNICAL REPORTS
  • 5
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    Space solar power - An available energy source (1976)
    In:  Other Sources
    Details
    Publication Date: 2019-08-28
    Description: The development of satellite solar power stations is described with attention given to station design and assembly in space. Problems associated with conversion of solar energy into microwaves and with getting the station into orbit are considered. The use of a solar propulsion system for pushing the station to high orbit is discussed along with questions of station lifetime (estimated to be about thirty years). The paper is copiously illustrated with drawings projecting various aspects of station design and utilization.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Format: text
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    NASA TECHNICAL REPORTS
  • 6
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    Energy: A continuing bibliography with indexes (1976)
    In:  CASI
    Details
    Publication Date: 2019-08-28
    Description: This bibliography lists 337 reports, articles, and other documents introduced into the NASA scientific and technical information system from January 1, 1975 through March 31, 1975.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: NASA-SP-7043(10)
    Format: application/pdf
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  • 7
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    Rechargeable battery which combats shape change of the zinc anode (1976)
    In:  CASI
    Details
    Publication Date: 2019-08-27
    Description: A rechargeable cell or battery is provided in which shape change of the zinc anode is combatted by profiling the ionic conductivity of the paths between the electrodes. The ion flow is greatest at the edges of the electrodes and least at the centers, thereby reducing migration of the zinc ions from edges to the center of the anode. A number of embodiments are disclosed in which the strength and/or amount of electrolyte, and/or the number and/or size of the paths provided by the separator between the electrodes, are varied to provide the desired ionic conductivity profile.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Format: application/pdf
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  • 8
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    The Effects of Blowing Over Various Trailing-edge Flaps on an NACA 0006 Airfoil Section, Comparisons with Various Types of Flaps on other Airfoil Sections, and an Analysis of Flow and Power Relationships for Blowing Systems (1976)
    In:  CASI
    Details
    Publication Date: 2019-08-14
    Description: The results are presented of a two-dimensional investigation conducted to determine the effect of blowing over various types of trailing-edge flaps on a wing having the NACA 0006 airfoil section and a drooped-nose flap. The position and profile of the trailing-edge flap, the nozzle height, and the location of the flap with respect to the nozzle were found to be important variables. Data from many investigations were used to make an evaluation of the effects of blowing on lift. An analysis was made of flow and power relationships for blowing systems.
    Keywords: AERODYNAMICS
    Type: NASA-TN-D-8293 , A-6423
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  • 9
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    Numerical Airfoil Optimization Using a Reduced Number of Design Coordinates (1976)
    In:  CASI
    Details
    Publication Date: 2019-08-14
    Description: A method is presented for numerical airfoil optimization whereby a reduced number of design coordinates are used to define the airfoil shape. The approach is to define the airfoil as a linear combination of shapes. These basic shapes may be analytically or numerically defined, allowing the designer to use his insight to propose candidate designs. The design problem becomes one of determining the participation of each such function in defining the optimum airfoil. Examples are presented for two-dimensional airfoil design and are compared with previous results based on a polynomial representation of the airfoil shape. Four existing NACA airfoils are used as basic shapes. Solutions equivalent to previous results are achieved with a factor of more than 3 improvements in efficiency, while superior designs are demonstrated with an efficiency greater than 2 over previous methods. With this shape definition, the optimization process is shown to exploit the simplifying assumptions in the inviscid aerodynamic analysis used here, thus demonstrating the need to use more advanced aerodynamics for airfoil optimization.
    Keywords: AERODYNAMICS
    Type: NASA-TM-X-73151 , A-6671
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  • 10
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    NASA thermionic-conversion program (1976)
    In:  CASI
    Details
    Publication Date: 2019-08-13
    Description: Current out-of-core emphases allow converter material and design freedoms previously prohibited by in-core nucleonic and geometric restrictions. As a result, potential improvements indicate possibilities for severalfold increases in efficiencies. The new TEC-ART program concentrated initially on low-work function collectors and interelectrode-loss reduction and revealed much in a short time. This new emission capability coupled with improved collectors that maintain performance with emitter-vapor deposit accumulations are requisites for efficient, enduring thermionic converters.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: NASA-TM-X-73430 , E-8778 , Intersoc. Energy Conversion Eng. Conf.; Sep 12, 1976 - Sep 17, 1976; State Line, NV; United States
    Format: application/pdf
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