+ Visit NASA.gov + Contact NASA   + Home Select Search Field * All Report - Patent Number Abstract *Accession Number *NASA Center *Author NameDocument IDKeywordsPublication Date *Title * Find Results With All of the words At least one of the words Enter Search Term  within returned results    Search Tips: Use only the fields with * to search NIX collection. Enclose terms in double quotation marks (") to search for exact phrases, ie: "space shuttle". NOTE: Commas and dashes are removed from search term by search engine. Select Reset Search button to start a new search. See Help for more tips. + NASA Center + Subject + Item/Media Type Selected Navigations: [Remove] Publication Year > 1991-2000 > 1994 [x] Subject > A-C [x] Availability Options > Order From Other Sources [x] Sort results by: NASA Center | Date Added to NTRS | Publication Year There are a total of 2389 record(s) matching your query. Sorted by: Date Added To NTRS in Descending order 1 2 3 4 5 6 7 8 9 10 Next >> Hypersonic flow past open cavities Author(s): Morgenstern, Algacyr, Jr.; Chokani, Ndaona Abstract: The hypersonic flow over a cavity is investigated. The time-dependent compressible Navier-Stokes equations are numerically solved. An implicit algorithm, with a subiteration procedure to recover time accuracy, is used to ... NASA Center: NASA (non Center Specific) Publication Year: 1994 Added to NTRS: 2008-04-09 Accession Number: 95A87207; Document ID: 19950055608 Software fault tolerance in computer operating systems Author(s): Iyer, Ravishankar K.; Lee, Inhwan Abstract: This chapter provides data and analysis of the dependability and fault tolerance for three operating systems: the Tandem/GUARDIAN fault-tolerant system, the VAX/VMS distributed system, and the IBM/MVS system. Based on ... NASA Center: NASA (non Center Specific) Publication Year: 1994 Added to NTRS: 2006-11-10 Accession Number: 95N24993; Document ID: 19950018573; Report Number: NAS 1.26:197999, NASA-CR-197999 The effects of gravity on the circadian timing system Author(s): Fuller, C. A. Abstract: The physiological system responsible for the temporal coordination of an organism is the circadian timing system (CTS). This system provides two forms of temporal coordination. First, the CTS provides for synchronization ... NASA Center: Ames Research Center Publication Year: 1994 Added to NTRS: 2006-08-02 Document ID: 20040089969 Cardiovascular responses to repetitive exposure to hyper- and hypogravity states produced by parabolic flight Author(s): Mukai, C. N.; Lathers, C. M.; Charles, J. B.; Bennett, B. S. Abstract: Physiologic changes to repetitive hyper- and hypogravity stresses occurring during eight to ten parabolas on NASA's KC-135 aircraft were studied. Hemodynamic responses in 11 subjects in 4 different postures (supine, ... NASA Center: Johnson Space Center Publication Year: 1994 Added to NTRS: 2006-08-02 Document ID: 20040192874 Impact of altered gravity on aspects of cell biology Author(s): Claassen, D. E.; Spooner, B. S. Abstract: No abstract available NASA Center: NASA (non Center Specific) Publication Year: 1994 Added to NTRS: 2006-08-02 Document ID: 20050000399 The effect of blood volume loss on cardiovascular response to lower body negative pressure using a mathematical model Author(s): Karam, E. H.; Srinivasan, R. S.; Charles, J. B.; Fortney, S. M. Abstract: Different mathematical models of varying complexity have been proposed in recent years to study the cardiovascular (CV) system. However, only a few of them specifically address the response to lower body negative pressure ... NASA Center: Johnson Space Center Publication Year: 1994 Added to NTRS: 2006-08-02 Document ID: 20040089958 Cardiopulmonary adaptation to weightlessness Author(s): Prisk, G. K.; Guy, H. J.; Elliott, A. R.; West, J. B. Abstract: The lung is profoundly affected by gravity. The absence of gravity (microgravity) removes the mechanical stresses acting on the lung paranchyma itself, resulting in a reduction in the deformation of the lung due to its own ... NASA Center: Johnson Space Center Publication Year: 1994 Added to NTRS: 2006-08-02 Document ID: 20040089966 An analysis of interplanetary space radiation exposure for various solar cycles Author(s): Badhwar, G. D.; Cucinotta, F. A.; O'Neill, P. M. Abstract: The radiation dose received by crew members in interplanetary space is influenced by the stage of the solar cycle. Using the recently developed models of the galactic cosmic radiation (GCR) environment and the ... NASA Center: Johnson Space Center Publication Year: 1994 Added to NTRS: 2006-08-02 Document ID: 20050000351 Knee-joint proprioception during 30-day 6 degrees head-down bed rest with isotonic and isokinetic exercise training Author(s): Bernauer, E. M.; Walby, W. F.; Ertl, A. C.; Dempster, P. T.; Bond, M.; Greenleaf, J. E. Abstract: To determine if daily isotonic exercise or isokinetic exercise training coupled with daily leg proprioceptive training, would influence leg proprioceptive tracking responses during bed rest (BR), 19 men (36 /- SD 4 years, ... NASA Center: Ames Research Center Publication Year: 1994 Added to NTRS: 2006-08-02 Document ID: 20050000280 Causes of chronic orthostatic hypotension Author(s): Robertson, D.; Robertson, R. M. Abstract: OBJECTIVE: To determine the frequency of various causes of orthostatic hypotension. DESIGN: Survey. SETTING: Tertiary referral center. PATIENTS: One hundred patients with moderate to severe orthostatic hypotension. RESULTS: ... NASA Center: NASA (non Center Specific) Publication Year: 1994 Added to NTRS: 2006-08-02 Document ID: 20050000319 1 2 3 4 5 6 7 8 9 10 Next >> + Back to Top + Sponsored by the NASA Scientific and Technical    Information Program + 2004 Vision for Space Exploration + Freedom of Information Act + NASA Web Privacy Policy and Important Notices + NASA Disclaimers, Copyright Notice,    and Terms and Conditions of Use NASA Official: Calvin Mackey Page Curator: NASA Center for AeroSpace Information (help@sti.nasa.gov) Last Updated: July 5, 2007