|
|
 |
 |
|
|
|
|
Sort results by:
|
|
|
There are a total of 1037907 record(s) matching your query.
Sorted by: NASA Center in Ascending order
|
The detection of planetary systems from Space Station - A star observation strategy
Author(s): Mascy, Alfred C.; Nishioka, Ken; Jorgensen, Helen; Swenson, Byron L.
Abstract: A 10-20-yr star-observation program for the Space Station Astrometric Telescope Facility (ATF) is proposed and evaluated by means of computer simulations. The primary aim of the program is to detect stars with planetary ...
NASA Center: Ames Research Center
Publication Year: 1987
Added to NTRS: 2004-11-03
Accession Number: 87A22555; Document ID: 19870035281; Report Number: AIAA PAPER 87-0317
Wireless Subsurface Microsensors for Health Monitoring of Thermal Protection Systems on Hypersonic Vehicles
Author(s): Milos, Frank S.; Watters, David G.; Pallix, Joan B.; Bahr, Alfred J.; Huestis, David L.
Abstract: Health diagnostics is an area where major improvements have been identified for potential implementation into the design of new reusable launch vehicles in order to reduce life cycle costs, to increase safety margins, and to ...
NASA Center: Ames Research Center
Publication Year: 2001
Added to NTRS: 2007-12-31
Document ID: 20010097314
Effect of Negative Ions on the Conductivity of the Titan Atmosphere
Author(s): Borucki, W. J.; Bakes, E.; Whitten, R. C.
Abstract: In an earlier paper, Borucki et al (1987) calculated the electrical conductivity and electrical charge on aerosols in Titan's atmosphere due to the ionization by galactic cosmic rays and electron precipitation from Saturn's ...
NASA Center: Ames Research Center
Publication Year: 2000
Added to NTRS: 2004-11-03
Document ID: 20010084732
Improving the Performance of Particle Tracing in Curvilinear Grids
Author(s): Hultquist, J. P. M.
Abstract: The tracing of particles through curvilinear gridded data is a common task in the visualization of computed flow fields. This is most often done using a numerical integration method over the interpolated physical-space ...
NASA Center: Ames Research Center
Publication Year: 1994
Added to NTRS: 2005-08-25
Accession Number: 97N71255; Document ID: 19970014820; Report Number: AIAA Paper 94-0324, NAS 1.15:111982, NASA-TM-111982, RNR-94-009
Numerical simulation of powered-lift flows
Author(s): Van Dalsem, William R.; Chawla, Kalpana; Smith, Merritt H.; Abeloff, Patricia A.
Abstract: This article presents work performed at NASA's Ames Research Center involving the application of Computational Fluid Dynamics (CFD) to the prediction of flows encountered by powered-lift aircraft operating in ground effect. ...
NASA Center: Ames Research Center
Publication Year: 1990
Added to NTRS: 2004-11-03
Accession Number: 95A60179; Document ID: 19950028580
Instrument Measures Airflow Friction Without Contact
Author(s): Monson, D. J.
Abstract: Dual beam laser interferometer determines airflow friction against body by measuring time-varying thickness of wind sheared oil film. Measurements yield skin friction between film and airstream. Errors from prerun oil flow, ...
NASA Center: Ames Research Center
Publication Year: 1983
Added to NTRS: 2005-09-30
Accession Number: 83B10047; Document ID: 19830000047; Report Number: ARC-11354
Adaptive wall technology for minimization of wind tunnel boundary interferences - where are we now
Author(s): Wolf, Stephen W. D.
Abstract: The status of adaptive wall technology to improve wind tunnel simulations for 2- and 3-D testing is reviewed. This technology relies on the test section flow boundaries being adjustable, using a tunnel/computer system to ...
NASA Center: Ames Research Center
Publication Year: 1994
Added to NTRS: 2004-11-03
Accession Number: 95A88903; Document ID: 19950057304
An Exploratory Study of Thermoelectrostatic Power Generation for Space Flight Applications
Author(s): Beam, Benjamin H.
Abstract: A study has been made of a process in which a solar heating cycle is combined with an electrostatic cycle for generating electrical power for space vehicle applications. The power unit, referred to as a thermoelectrostatic ...
NASA Center: Ames Research Center
Publication Year: 1960
Added to NTRS: 2005-08-25
Document ID: 19980223620; Report Number: NASA-TN-D-336
SAGE: The Self-Adaptive Grid Code
Author(s): Davies, Carol B.; Venkatapathy, Ethiraj
Abstract: The multi-dimensional self-adaptive grid code, SAGE, is an important tool in the field of computational fluid dynamics (CFD). It provides an efficient method to improve the accuracy of flow solutions while simultaneously ...
NASA Center: Ames Research Center
Publication Year: 1999
Added to NTRS: 2005-08-25
Document ID: 19990081128; Report Number: A-99V0034, NAS 1.15:208792, NASA/TM-1999-208792
A Reference Architecture for Space Information Management
Author(s): Mattmann, Chris A.; Crichton, Daniel J.; Hughes, J. Steven; Ramirez, Paul M.; Berrios, Daniel C.
Abstract: We describe a reference architecture for space information management systems that elegantly overcomes the rigid design of common information systems in many domains. The reference architecture consists of a set of flexible, ...
NASA Center: Ames Research Center, Jet Propulsion Laboratory
Publication Year: 2006
Added to NTRS: 2007-05-18
Document ID: 20070017419
|
|
|
|
|
