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There are a total of 1031821 record(s) matching your query.
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Proceedings of the 15th Space Photovoltaic Research and Technology Conference
Abstract: Reports from the 15th Space Photovoltaic Research and Technology Conference included topics on space solar cell research, space photovoltaics, multibandgap cells,thermophotovoltaics,flight experiments, environmental effects; ...
NASA Center: Glenn Research Center
Publication Year: 2004
Added to NTRS: 2009-01-15
Document ID: 20040142233; Report Number: E-14260, NASA/CP-2004-212735
Knowledge representation by linguistic transitive closures of trapezoidal fuzzy numbers
Author(s): Bezdek, James C.
Abstract: No Abstract Available
NASA Center: NASA (non Center Specific)
Publication Year: 1988
Added to NTRS: 2009-01-14
Accession Number: 91N71370; Document ID: 19910073815
On transonic flow past a wave-shaped wall
Author(s): Kaplan, Carl
Abstract: This report is an extension of a previous investigation (described in NACA rep. 1069) concerned with the solution of the nonlinear differential equation for transonic flow past a wavy wall. In the present work several new ...
NASA Center: Langley Research Center
Publication Year: 1953
Added to NTRS: 2009-01-14
Accession Number: 93R21467; Document ID: 19930092177; Report Number: NACA-TR-1149
A unified two-dimensional approach to the calculation of three-dimensional hypersonic flows, with application to bodies of revolution
Author(s): Eggers, A J , Jr; Savin, Raymond C
Abstract: A procedure for calculating three-dimensional steady and nonsteady supersonic flows with the method of characteristics is developed and discussed. An approximate method is deduced from the characteristics method and shown to ...
NASA Center: Ames Research Center
Publication Year: 1955
Added to NTRS: 2009-01-14
Accession Number: 93R20287; Document ID: 19930090997; Report Number: NACA-TR-1249
A biharmonic relaxation method for calculating thermal stress in cooled irregular cylinders
Author(s): Holms, Arthur G
Abstract: A numerical method was developed for calculating thermal stresses in irregular cylinders cooled by one or more internal passages. The use of relaxation methods and elementary methods of finite differences was found to give ...
NASA Center: Glenn Research Center
Publication Year: 1952
Added to NTRS: 2009-01-14
Accession Number: 93R21395; Document ID: 19930092105; Report Number: NACA-TR-1059
Thin airfoil theory based on approximate solution of the transonic flow equation
Author(s): Spreiter, John R; Alksne, Alberta Y
Abstract: A method is presented for the approximate solution of the nonlinear equations of transonic flow theory. Solutions are found for two-dimensional flows at a Mach number of 1 and for purely subsonic and purely supersonic flows. ...
NASA Center: Ames Research Center
Publication Year: 1958
Added to NTRS: 2009-01-14
Accession Number: 93R20306; Document ID: 19930091016; Report Number: NACA-TR-1359
Nomenclature for aeronautics
Abstract: The purpose of the Committee in the preparation and publication of this report is to secure uniformity in the official documents of the government and, as far as possible, in technical and other commercial publications. This ...
NASA Center: NASA (non Center Specific)
Publication Year: 1921
Added to NTRS: 2009-01-14
Accession Number: 93R20443; Document ID: 19930091153; Report Number: NACA-TR-91
Unsteady oblique interaction of a shock wave with a plane disturbance
Author(s): Moore, Franklin K
Abstract: Analysis is made of the flow field produced by oblique impingement of weak plane disturbances of arbitrary profile on a plane normal shock. Three types of disturbance are considered: (a) sound wave propagating in the gas at ...
NASA Center: Glenn Research Center
Publication Year: 1954
Added to NTRS: 2009-01-14
Accession Number: 93R21483; Document ID: 19930092193; Report Number: NACA-TR-1165
Bodies of revolution having minimum drag at high supersonic airspeeds
Author(s): Eggers, A J , Jr; Resnikoff, Meyer M; Dennis, David H
Abstract: Approximate shapes of nonlifting bodies having minimum pressure foredrag at high supersonic airspeeds are calculated. With the aid of Newton's law of resistance, the investigation is carried out for various combinations of ...
NASA Center: Ames Research Center
Publication Year: 1957
Added to NTRS: 2009-01-14
Accession Number: 93R21589; Document ID: 19930092299; Report Number: NACA-TR-1306
Effect of fuel variables on carbon formation in turbojet-engine combustors
Author(s): Jonash, Edmund R; Wear, Jerrold D; Cook, William P
Abstract: Report presents the results of an investigation of the effects of fuel properties and of a number of fuel additives on combustion-chamber carbon deposition and exhaust-gas smoke formation in a single tubular turbojet-engine ...
NASA Center: Glenn Research Center
Publication Year: 1958
Added to NTRS: 2009-01-14
Accession Number: 93R21630; Document ID: 19930092340; Report Number: NACA-TR-1352
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