Nasa Scientific And Technical Programs
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Nasa Scientific And Technical Programs
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Author : United States. Congress. Senate. Aeronautical and Space Sciences
language : en
Publisher:
Release Date : 1961
Nasa Scientific And Technical Programs written by United States. Congress. Senate. Aeronautical and Space Sciences and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1961 with categories.
Scientific And Technical Programs
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Author : United States. Congress. Senate. Committee on Aeronautical and Space Sciences
language : en
Publisher:
Release Date : 1963
Scientific And Technical Programs written by United States. Congress. Senate. Committee on Aeronautical and Space Sciences and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1963 with categories.
The Nasa Scientific And Technical Information Program
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Author : United States. National Aeronautics and Space Administration. Scientific and Technical Information Program
language : en
Publisher:
Release Date : 1993
The Nasa Scientific And Technical Information Program written by United States. National Aeronautics and Space Administration. Scientific and Technical Information Program and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1993 with Astronautics categories.
Nasa S Science Programs
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Author : United States. Congress. House. Committee on Science and Technology (2007). Subcommittee on Space and Aeronautics
language : en
Publisher:
Release Date : 2008
Nasa S Science Programs written by United States. Congress. House. Committee on Science and Technology (2007). Subcommittee on Space and Aeronautics and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008 with Political Science categories.
Propellant For The Nasa Standard Initiator
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Author : Carl Hohmann
language : en
Publisher:
Release Date : 2000
Propellant For The Nasa Standard Initiator written by Carl Hohmann and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2000 with Perchlorates categories.
This paper discusses processes employed in manufacturing zirconium-potassium perchlorate propellant for the NASA standard initiator. It provides both a historical background on the NSI device - detailing problem areas and their resolution - and on propellant blending techniques. Emphasis is placed on the precipitation blending method. The findings on mixing equipment, processing, and raw materials are described. Also detailed are findings on the bridgewire slurry operation, one of the critical steps in the production of the NASA standard initiator.
Proceedings Of The Nasa First Wake Vortex Dynamic Spacing Workshop
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Author : Leonard Credeur
language : en
Publisher:
Release Date : 1997
Proceedings Of The Nasa First Wake Vortex Dynamic Spacing Workshop written by Leonard Credeur and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1997 with Airplanes categories.
Viton S Impact On Nasa Standard Initiator Propellant Properties
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Author : Carl Hohmann
language : en
Publisher:
Release Date : 2000
Viton S Impact On Nasa Standard Initiator Propellant Properties written by Carl Hohmann and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2000 with Propellants categories.
This paper discusses some of the properties of Viton that are relevant to its use as a pyrotechnic binder in a NASA standard initiator (NSI) propellant. Nearly every aspect of NSI propellant manufacture and use is impacted by the binder system. The effect of Viton's molecular weight on solubility, solution viscosity, glass transition temperature, and strength characteristics as applied to NSI production and performance are reviewed. Emphasis is placed on the Viton fractionation that occurs during the precipitation cycle and its impact on bridgewire functions. Special consideration is given to the production of bridgewire slurry mixtures.
Multidisciplinary Optimization Branch Experience Using Isight Software
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Author : S. L. Padula
language : en
Publisher:
Release Date : 1999
Multidisciplinary Optimization Branch Experience Using Isight Software written by S. L. Padula and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1999 with Multidisciplinary design optimization categories.
The Multidisciplinary Optimization (MDO) Branch at NASA Langley is investigating frameworks for supporting multidisciplinary analysis and optimization research. A framework provides software and system services to integrate computational tasks and allows the researcher to concentrate more on the application and less on the programming details. A framework also provides a common working environment and a full range of optimization tools, and so increases the productivity of multidisciplinary research teams. Finally, a framework enables staff members to develop applications for use by disciplinary experts in other organizations. This year, the MDO Branch has gained experience with the iSIGHT framework. This paper describes experiences with four aerospace applications, including (1) reusable launch vehicle sizing, (2) aerospike nozzle design, (3) low-noise rotorcraft trajectories, and (4) acoustic liner design. Brief overviews of each problem are provided, including the number and type of disciplinary codes and computation time estimates. In addition, the optimization methods, objective functions, design variables, and constraints are described for each problem. For each case, discussions on the advantages and disadvantages of using the iSIGHT framework are provided as well as notes on the ease of use of various advanced features and suggestions for areas of improvement.
The Second Joint Nasa Faa Dod Conference On Aging Aircraft
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Author :
language : en
Publisher:
Release Date : 1999
The Second Joint Nasa Faa Dod Conference On Aging Aircraft written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1999 with Airframes categories.
The Nasa Msfc Global Reference Atmospheric Model 1999 Version Gram 99
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Author : Carl Gerald Justus
language : en
Publisher:
Release Date : 1999
The Nasa Msfc Global Reference Atmospheric Model 1999 Version Gram 99 written by Carl Gerald Justus and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1999 with Atmosphere categories.
The latest version of Global Reference Atmospheric Model (GRAM-99) is presented and discussed. GRAM-99 uses either (binary) Global Upper Air Climatic Atlas (GUACA) or (ASCII) Global Gridded Upper Air Statistics (GGUAS) CD-ROM data sets, for 0-27 km altitudes. As with earlier versions, GRAM-99 provides complete geographical and altitude coverage for each month of the year. GRAM-99 uses a specially-developed data set, based on Middle Atmosphere Program (MAP) data, for 20-120 km altitudes, and NASA's 1999 version Marshall Engineering Thermosphere (MET-99) model for heights above 90 km. Fairing techniques assure smooth transition in overlap height ranges (2()%27 km and 9% 120km). GRAM-99 includes water vapor and 11 other atmospheric constituents (03, N20 CO, CH4, CO2, N2, 02, 0, A, He and H). A variable-scale perturbation model provides both large-scale (wave) and small-scale (stochastic) deviations from mean values for thermodynamic variables and horizontal and vertical wind components. The small-scale perturbation model includes improvements in representing intermittency ("patchiness"). A major new feature is an option to substitute Range Reference Atmosphere (RRA) data for conventional GRAM climatology when a trajectory passes sufficiently near any RRA site. A complete user's guide for running the program, plus sample input and output, is provided. An example is provided for how to incorporate GRAM-99 as subroutines in other programs (e.g., trajectory codes).