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  • Other Sources  (3,631)
  • AERODYNAMICS  (1,272)
  • CHEMISTRY  (1,193)
  • GENERAL  (1,166)
  • 1970-1974  (3,603)
  • 1950-1954  (28)
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  • Other Sources  (3,631)
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Year
  • 1
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    Application of system safety to rail transit systems (1971)
    In:  CASI
    Details
    Publication Date: 2005-11-30
    Description: Management emphasis on system safety in the rapid transit industry includes the granting and use of funds by the Federal Government according to systematic analysis of safety hazards in advance. Likelihood predictions that those hazards will be activated by exposure of the system to a system failure, a human error, external conditions, or combinations of these aspects determine alternatives to the assumption of risk and recommend corrections before the system is operational. Rigorous safety analyses are projected to assure operational safety for prolonged periods under varied maintenance conditions; these analysis encompass station accident possibilities as well as train-person collisions, car equipment and design, traffic control systems, and tunnel design problems.
    Keywords: GENERAL
    Type: NASA, Washington Govt.-Ind. System Safety Conf.; p 233-239
    Format: text
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    NASA TECHNICAL REPORTS
  • 2
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    Integrating system safety into the basic systems engineering process (1971)
    In:  CASI
    Details
    Publication Date: 2005-11-30
    Description: The basic elements of a systems engineering process are given along with a detailed description of what the safety system requires from the systems engineering process. Also discussed is the safety that the system provides to other subfunctions of systems engineering.
    Keywords: GENERAL
    Type: NASA, Washington Govt.-Ind. System Safety Conf.; p 147-160
    Format: text
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    NASA TECHNICAL REPORTS
  • 3
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    System safety management: A new discipline (1971)
    In:  CASI
    Details
    Publication Date: 2005-11-30
    Description: The systems theory is discussed in relation to safety management. It is suggested that systems safety management, as a new discipline, holds great promise for reducing operating errors, conserving labor resources, avoiding operating costs due to mistakes, and for improving managerial techniques. It is pointed out that managerial failures or system breakdowns are the basic reasons for human errors and condition defects. In this respect, a recommendation is made that safety engineers stop visualizing the problem only with the individual (supervisor or employee) and see the problem from the systems point of view.
    Keywords: GENERAL
    Type: NASA, Washington Govt.-Ind. System safety Conf.; p 37-40
    Format: text
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    NASA TECHNICAL REPORTS
  • 4
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    New polymer systems: Chain extension by dianhydrides (1972)
    In:  CASI
    Details
    Publication Date: 2005-11-30
    Description: The results are presented for a systematic investigation on the use of anhydrides to prepare stable elastomeric materials for space use, under mild reaction conditions. The three anhydrides investigated were found to provide effective chain extension of hydroxy-terminated poly(alkylene oxides) and poly(butadienes). These were tetrahydrofuran tetracarboxylic dianhydride, pyromellitic dianhydride, and benzophenone tetracarboxylic diahydride. The most effective catalyst investigated was ferric acetylacetonate, which resulted in chain extension at 333 K (60 C). One feature of these anhydride reactants is that they are difunctional as anhydrides, but tetrafunctional if conditions are selected that lead to reaction of all carboxyl groups. Therefore, chain extension can be effected and then followed by crosslinking via the residual carboxyl groups.
    Keywords: CHEMISTRY
    Type: JPL Quart. Tech. Rev., Vol. 1, No. 4; p 97-103
    Format: text
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    NASA TECHNICAL REPORTS
  • 5
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    Census Cities Project and atlas of urban and regional change (1970)
    In:  CASI
    Details
    Publication Date: 2005-11-30
    Description: The research design and imagery utilization for urban applications of remote sensing are reviewed, including the combined use of sensor and census data and aircraft and spacecraft sensor platforms. The related purposes of the Census Cities Project are elucidated: (1) to assess the role of remote sensors on high altitude platforms for comparative study of urban areas; (2) to detect changes in selected U.S. urban areas between the 1970 census and the time of launching of an earth-orbiting sensor platform prior to next census; (3) to test the satellite sensor platform utility to monitor urban change and serve as a control for sensor image interpretation; (4) to design an information system for incorporating graphic sensor data with census-type data gathered by traditional techniques; (5) to identify and to design user-oriented end-products or information services; and (6) to ascertain what organizational capability would be needed to provide such services on a continuing basis. A need to develop not only a spatial data information system, but also a methodology for detecting and interpreting change is implied.
    Keywords: GENERAL
    Type: NASA. Manned Spacecraft Center 3d Ann. Earth Resources Program Rev., vol. 1; 16 p
    Format: text
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    NASA TECHNICAL REPORTS
  • 6
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    Application of advanced aerodynamics to future transport aircraft (1971)
    In:  CASI
    Details
    Publication Date: 2005-11-27
    Description: Applications of supercritical airfoils to transport aircraft designs
    Keywords: AERODYNAMICS
    Type: NASA AIRCRAFT SAFETY AND OPERATING PROBL., VOL. 1 1971; P 165-176
    Format: text
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    NASA TECHNICAL REPORTS
  • 7
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    Aircraft response to the wing trailing vortices generated by large jet transports (1971)
    In:  CASI
    Details
    Publication Date: 2005-11-27
    Description: Flight tests for evaluating effect of wing-tip vortex wake generated by large jet transports on smaller aircraft
    Keywords: AERODYNAMICS
    Type: NASA AIRCRAFT SAFETY AND OPERATING PROBL., VOL. 1 1971; P 115-126
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    NASA TECHNICAL REPORTS
  • 8
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    Progress report on wing-trailing-vortex studies (1971)
    In:  CASI
    Details
    Publication Date: 2005-11-27
    Description: Effect of wing-tip vortex wakes generated by large jet transport aircraft on smaller airplanes
    Keywords: AERODYNAMICS
    Type: NASA AIRCRAFT SAFETY AND OPERATING PROBL., VOL. 1 1971; P 101-113
    Format: text
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    NASA TECHNICAL REPORTS
  • 9
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    Gust alleviation (1971)
    In:  CASI
    Details
    Publication Date: 2005-11-27
    Description: Alleviation of lateral and longitudinal gust effects on aircraft
    Keywords: AERODYNAMICS
    Type: PERFORMANCE AND DYN. OF AEROSPACE VEHICLES 1971; P 505-553
    Format: text
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    NASA TECHNICAL REPORTS
  • 10
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    Effects of aeroelasticity on static aerodynamic derivatives (1971)
    In:  CASI
    Details
    Publication Date: 2005-11-27
    Description: Effects of aeroelasticity on static longitudinal aerodynamic derivatives
    Keywords: AERODYNAMICS
    Type: PERFORMANCE AND DYN. OF AEROSPACE VEHICLES 1971; P 375-438
    Format: text
    Location Call Number Expected Availability
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    NASA TECHNICAL REPORTS
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