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There are a total of 1031821 record(s) matching your query.
Sorted by: Date Added To NTRS in Descending order
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Multielectrode burst pattern feature extraction from small mammalian networks in culture
Author(s): Gross, Guenter W.
Abstract: No Abstract Available
NASA Center: NASA (non Center Specific)
Publication Year: 1988
Added to NTRS: 2009-01-14
Accession Number: 91N71362; Document ID: 19910073807
Correlation, evaluation, and extension of linearized theories for tire motion and wheel shimmy
Author(s): Smiley, Robert F
Abstract: An evaluation is made of the existing theories of a linearized tire motion and wheel shimmy. It is demonstrated that most of the previously published theories represent varying degrees of approximation to a summary theory ...
NASA Center: Langley Research Center
Publication Year: 1957
Added to NTRS: 2009-01-14
Accession Number: 93R21584; Document ID: 19930092294; Report Number: NACA-TR-1299
Characteristics of turbulence in boundary layer with zero pressure gradient
Author(s): Klebanoff, P S
Abstract: The results of an experimental investigation of a turbulent boundary layer with zero pressure gradient are presented. Measurements with the hot-wire anemometer were made of turbulent energy and turbulent shear stress, ...
NASA Center: NASA (non Center Specific)
Publication Year: 1955
Added to NTRS: 2009-01-14
Accession Number: 93R21539; Document ID: 19930092249; Report Number: NACA-TR-1247
Extrapolation techniques applied to matrix methods in neutron diffusion problems
Author(s): Mccready, Robert R
Abstract: A general matrix method is developed for the solution of characteristic-value problems of the type arising in many physical applications. The scheme employed is essentially that of Gauss and Seidel with appropriate ...
NASA Center: Glenn Research Center
Publication Year: 1956
Added to NTRS: 2009-01-14
Accession Number: 93R21570; Document ID: 19930092280; Report Number: NACA-TR-1283
A special investigation to develop a general method for three-dimensional photoelastic stress analysis
Author(s): Frocht, M M; Guernsey, R , Jr
Abstract: The method of strain measurement after annealing is reviewed and found to be satisfactory for the materials available in this country. A new general method is described for the photoelastic determination of the principal ...
NASA Center: NASA (non Center Specific)
Publication Year: 1953
Added to NTRS: 2009-01-14
Accession Number: 93R21466; Document ID: 19930092176; Report Number: NACA-TR-1148
Characteristics of the Langley 8-foot transonic tunnel with slotted test section
Author(s): Wright, Ray H; Ritchie, Virgil S; Pearson, Albin O
Abstract: A large wind tunnel, approximately 8 feet in diameter, has been converted to transonic operation by means of slots in the boundary extending in the direction of flow. The usefulness of such a slotted wind tunnel, already ...
NASA Center: Langley Research Center
Publication Year: 1958
Added to NTRS: 2009-01-14
Accession Number: 93R21658; Document ID: 19930092368; Report Number: NACA-TR-1389
Linear fuzzy controller
Author(s): Buckley, James J.
Abstract: No Abstract Available
NASA Center: NASA (non Center Specific)
Publication Year: 1988
Added to NTRS: 2009-01-14
Accession Number: 91N71372; Document ID: 19910073817
A visualization study of secondary flows in cascades
Author(s): Herzig, Howard Z; Hansen, Arthur G; Costello, George R
Abstract: Flow-visualization techniques are employed to ascertain the streamline patterns of the nonpotential secondary flows in the boundary layers of cascades, and thereby to provide a basis for more extended analyses in ...
NASA Center: Glenn Research Center
Publication Year: 1954
Added to NTRS: 2009-01-14
Accession Number: 93R21481; Document ID: 19930092191; Report Number: NACA-TR-1163
Estimation of the maximum angle of sideslip for determination of vertical-tail loads in rolling maneuvers
Author(s): Stone, Ralph W , Jr
Abstract: Report includes the National Advisory Committee for Aeronautics Technical Reports 1135 through 1157. Recent experiences have indicated that angles of sideslip in rolling maneuvers may be critical in the design of vertical ...
NASA Center: Langley Research Center
Publication Year: 1953
Added to NTRS: 2009-01-14
Accession Number: 93R21456; Document ID: 19930092166; Report Number: NACA-TR-1136
Some effects of nonlinear variation in the directional-stability and damping-in-yawing derivatives on the lateral stability of an airplane
Author(s): Sternfield, Leonard
Abstract: A theoretical investigation has been made to determine the effect of nonlinear stability derivatives on the lateral stability of an airplane. Motions were calculated on the assumption that the directional-stability and the ...
NASA Center: Langley Research Center
Publication Year: 1951
Added to NTRS: 2009-01-14
Accession Number: 93R21383; Document ID: 19930092093; Report Number: NACA-TR-1042
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