+ 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 > 1981-1990 > 1989 [x] Availability Options > Order From Other Sources [x] Sort results by: NASA Center | Date Added to NTRS | Publication Year There are a total of 7865 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 >> Use of an Expansion Tube to Examine Scramjet Combustion at Hypersonic Velocities Author(s): Rizkalla, Oussama; Bakos, Robert J.; Chinitz, Wallace; Pulsonetti, Maria V; Erdos, John I. Abstract: Combustion testing at total enthalpy conditions corresponding to flight Math numbers in excess of 12 requires the use of impulse facilities. The expansion tube is the only operational facility of its size which can provide ... NASA Center: Langley Research Center Publication Year: 1989 Added to NTRS: 2008-08-06 Document ID: 20080026356; Report Number: AIAA Paper-89-2536 Hydrogen embrittlement in nickel-hydrogen cells Author(s): Gross, Sidney Abstract: It was long known that many strong metals can become weakened and brittle as the result of the accumulation of hydrogen within the metal. When the metal is stretched, it does not show normal ductile properties, but fractures ... NASA Center: NASA (non Center Specific) Publication Year: 1989 Added to NTRS: 2008-02-12 Accession Number: 89N23008; Document ID: 19890013637 Lipophilic pigments from cyanobacterial (blue-green algal) and diatom mats in Hamelin Pool, Shark Bay, Western Australia Author(s): Palmisano, A. C.; Summons, R. E.; Cronin, S. E.; Des Marais, D. J. Abstract: Lipophilic pigments were examined in microbial mat communities dominated by cyanobacteria in the intertidal zone and by diatoms in the subtidal and sublittoral zones of Hamelin Pool, Shark Bay, Western Australia. These ... NASA Center: Ames Research Center Publication Year: 1989 Added to NTRS: 2006-08-02 Document ID: 20040089058 Different isotope compositions of C32 DPEP and C32 etioporphyrin III in oil shale: origin of etioporphyrin III from heme Author(s): Ocampo, R.; Callot, H. J.; Albrecht, P.; Popp, B. N.; Horowitz, M. R.; Hayes, J. M. Abstract: No abstract available NASA Center: NASA (non Center Specific) Publication Year: 1989 Added to NTRS: 2006-08-02 Document ID: 20040089063 Auxin asymmetry during gravitropism by tomato hypocotyls Author(s): Harrison, M. A.; Pickard, B. G. Abstract: Gravitropic asymmetry of auxin was observed in hypocotyls of tomato (Lycopersicon esculentum Mill.) soon after horizontal placement: the ratio of apically supplied [3H]IAA collected from the lower sides to that from the ... NASA Center: Kennedy Space Center Publication Year: 1989 Added to NTRS: 2006-08-02 Document ID: 20040112084 Evidence for a plasma-membrane-bound nitrate reductase involved in nitrate uptake of Chlorella sorokiniana Author(s): Tischner, R.; Ward, M. R.; Huffaker, R. C. Abstract: Anti-nitrate-reductase (NR) immunoglobulin-G (IgG) fragments inhibited nitrate uptake into Chlorella cells but had no affect on nitrate uptake. Intact anti-NR serum and preimmune IgG fragments had no affect on nitrate ... NASA Center: NASA (non Center Specific) Publication Year: 1989 Added to NTRS: 2006-08-02 Document ID: 20040090331 The use of bioelectric currents to study gravity perception in roots Author(s): Bjorkman, T. Abstract: Inhibitor-based studies of gravity perception in plants have yielded ambiguous results because gravitropism consists of many steps in series. Inhibiting any step eliminates gravicurvature; it cannot be shown whether gravity ... NASA Center: NASA (non Center Specific) Publication Year: 1989 Added to NTRS: 2006-08-02 Document ID: 20040089249 Effects of microgravity on liposome-reconstituted cardiac gap junction channeling activity Author(s): Claassen, D. E.; Spooner, B. S. Abstract: Effects of microgravity on cardiac gap junction channeling activity were investigated aboard NASA zero-gravity aircraft. Liposome-reconstituted gap junctions were assayed for channel function during free-fall, and the data ... NASA Center: NASA (non Center Specific) Publication Year: 1989 Added to NTRS: 2006-08-02 Document ID: 20050027178 Rapid enumeration of viable bacteria by image analysis Author(s): Singh, A.; Pyle, B. H.; McFeters, G. A. Abstract: A direct viable counting method for enumerating viable bacteria was modified and made compatible with image analysis. A comparison was made between viable cell counts determined by the spread plate method and direct viable ... NASA Center: Johnson Space Center Publication Year: 1989 Added to NTRS: 2006-08-02 Document ID: 20040112169 Polyamine binding to proteins in oat and Petunia protoplasts Author(s): Mizrahi, Y.; Applewhite, P. B.; Galston, A. W. Abstract: Previous work (A Apelbaum et al. [1988] Plant Physiol 88: 996-998) has demonstrated binding of labeled spermidine (Spd) to a developmentally regulated 18 kilodalton protein in tobacco tissue cultures derived from thin ... NASA Center: NASA (non Center Specific) Publication Year: 1989 Added to NTRS: 2006-08-02 Document ID: 20040112072 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