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  • 1985-1989  (8)
  • 1955-1959  (4)
  • 1
    Digitale Medien
    Digitale Medien
    Delayed Growth and Sexual Maturation in Sickle Cell Disease (1989)
    Oxford, UK : Blackwell Publishing Ltd
    Annals of the New York Academy of Sciences 565 (1989), S. 0 
    Details
    ISSN: 1749-6632
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Allgemeine Naturwissenschaft
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1111/j.1749-6632.1989.tb24160.x
    Standort Signatur Erwartet Verfügbarkeit
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    Artikel (Nationallizenzen)
    Volltext
  • 2
    Digitale Medien
    Digitale Medien
    Interferon-β-related DNA on human chromosome 4 (1985)
    Springer
    Somatic cell and molecular genetics 11 (1985), S. 403-408 
    Details
    ISSN: 1572-9931
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Medizin
    Notizen: Abstract A DNA subclone (pPE-4000) derived from the λB4 interferon-β-related human genomic DNA clone was used as a probe in blot-hybridization experiments of DNA from a panel of human-rodent somatic cell hybrids containing overlapping subsets of human chromosomes. The DNA hybridization experiments showed that the λB4 IFN-β locus is localized to human chromosome 4. A provisional regional assignment to 4q12-qter was also obtained. Thus available hybridization data implicate human chromosomes 2, 4, and 9 in the human IFN-β system while the available biological data also implicated human chromosome 5.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01534418
    Standort Signatur Erwartet Verfügbarkeit
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    Artikel (Nationallizenzen)
    Volltext
  • 3
    facet.materialart.
    Unbekannt
    Recent advances in nickel-hydrogen technology at nasa Lewis research center (1986)
    Elsevier
    Details
    Publikationsdatum: 1986-08-01
    Print ISSN: 0378-7753
    Digitale ISSN: 1873-2755
    Thema: Elektrotechnik, Elektronik, Nachrichtentechnik
    Publiziert von Elsevier
    Standort Signatur Erwartet Verfügbarkeit
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    AKTUELLE ARTIKEL
  • 4
    facet.materialart.
    Unbekannt
    Granite: Some Tectonic, Petrological, and Physico-Chemical Aspects (1958)
    Cambridge University Press
    Details
    Publikationsdatum: 1958-10-01
    Beschreibung: Granites of the main movement-phase of an orogenic zone form an integral part of the tectonic pattern being characteristically located at the intersection of cross- and main-folds. Here, an older granitic core pierces upwards through the anticlinal vault to form a diapir-fold in which migmatization, synchronous with movement, leads to the evolution of granodiorite. At higher structural levels where pressure is lower K-granites occur. Only at sub-volcanic levels has evidence of melting been found.Recent hydrothermal investigations, by Bowen and Tuttle, show that synthetic haplo-pitchstones which begin to crystallize at minimum temperatures become richer in K as pressure decreases. These results are closely comparable with evidence provided by the sub-volcanic K-microgranites (migmatized Caledonian granodiorite) of Slieve Gullion, but have no application to the granodiorites.
    Print ISSN: 0016-7568
    Digitale ISSN: 1469-5081
    Thema: Geologie und Paläontologie
    Publiziert von Cambridge University Press
    Standort Signatur Erwartet Verfügbarkeit
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    AKTUELLE ARTIKEL
  • 5
    facet.materialart.
    Unbekannt
    Magmatic and Amygdaloidal Plagioclases (1955)
    Cambridge University Press
    Details
    Publikationsdatum: 1955-10-01
    Print ISSN: 0016-7568
    Digitale ISSN: 1469-5081
    Thema: Geologie und Paläontologie
    Publiziert von Cambridge University Press
    Standort Signatur Erwartet Verfügbarkeit
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    AKTUELLE ARTIKEL
  • 6
    facet.materialart.
    Unbekannt
    Performance of lightweight nickel electrodes (1988)
    In:  CASI
    Details
    Publikationsdatum: 2019-06-28
    Beschreibung: The NASA Lewis Research Center is currently developing nickel electrodes for nickel-hydrogen (Ni-H2) batteries. These electrodes are lighter in weight and have higher energy densities than the heavier state-of-the-art (SOA) sintered nickel electrodes. In the present approach, lightweight materials or plaques are used as conductive supports for the nickel hydroxide active material. These plaques (fiber and felt, nickel plated plastic and graphite) are commercial products that are fabricated into nickel electrodes by electrochemically impregnating them with active material. Evaluation is performed in half cells structured in the bipolar configuration. Initial performance tests include capacity measurements at five discharge levels, C/2, 1.0C 1.37C, 2.0C and 2.74C. The electrodes that pass the initial tests are life cycle tested in a low Earth orbit regime at 80 percent depth of discharge. Different formulations of nickel fiber materials obtained from several manufacturers are currently being tested as possible candidates for nickel electrodes. One particular lightweight fiber mat electrode has accumulated over 3000 cycles to date, with stable capacity and voltage. Life and performance data of this electrode were investigated and presented. Good dimensional stability and active material adherence have been demonstrated in electrodes made from this lightweight plaque.
    Schlagwort(e): INORGANIC AND PHYSICAL CHEMISTRY
    Materialart: NASA-TM-100958 , E-4252 , NAS 1.15:100958
    Format: application/pdf
    Standort Signatur Erwartet Verfügbarkeit
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    NASA TECHNICAL REPORTS
  • 7
    facet.materialart.
    Unbekannt
    Lightweight nickel electrode for nickel hydrogen cells and batteries (1986)
    In:  Other Sources
    Details
    Publikationsdatum: 2019-07-13
    Beschreibung: The nickel electrode was identified as the heaviest component of the nickel hydrogen (NiH2) battery. The NASA Lewis Research Center is developing nickel electrodes for NiH2 battery devices which will be lighter in weight and have higher energy densities when cycled under a low Earth orbit regime at deep depths of discharge. Lightweight plaques are first exposed to 31 percent potassium hydroxide for 3 months to determine their suitability for use as electrode substrates from a chemical corrosion standpoint. Pore size distribution and porosity of the plaques are then measured. The lightweight plaques examined are nickel foam, nickel felt, nickel plastic and nickel plated graphite. Plaques are then electrochemically impregnated in an aqueous solution. Initial characterization tests of the impregnated plaques are performed at five discharge levels, C/2, 1.0 C, 1.37 C, 2.0 C, and 2.74 C rates. Electrodes that passed the initial characterization screening test will be life cycle tested. Lightweight electrodes are approximately 30 to 50 percent lighter in weight than the sintered nickel electrode.
    Schlagwort(e): ENERGY PRODUCTION AND CONVERSION
    Materialart: International Power Sources Symposium; Jun 09, 1986 - Jun 12, 1986; Cherry Hill, NJ; United States
    Format: text
    Standort Signatur Erwartet Verfügbarkeit
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    NASA TECHNICAL REPORTS
  • 8
    facet.materialart.
    Unbekannt
    Performance of lightweight nickel electrodes (1988)
    In:  Other Sources
    Details
    Publikationsdatum: 2019-07-13
    Beschreibung: The NASA Lewis Research Center is currently developing nickel electrodes for nickel-hydrogen (Ni-H2) batteries. These electrodes are lighter in weight and have higher energy densities than the heavier state-of-the-art (SOA) sintered nickel electrodes. In the present approach, lightweight materials or plaques are used as conductive supports for the nickel hydroxide active material. These plaques (fiber and felt, nickel plated plastic and graphite) are commercial products that are fabricated into nickel electrodes by electrochemically impregnating them with active material. Evaluation is performed in half cells structured in the bipolar configuration. Initial performance tests include capacity measurements at five discharge levels, C/2, 1.0C, 1.37C, 2.0C and 2.74C. The electrodes that pass the initial tests are life cycle tested in a low earth orbit regime at 80 percent depth of discharge. Different formulations of nickel fiber materials obtained from several manufacturers are currently being tested as possible candidates for nickel electrodes. One particular lightweight fiber mat electrode has accumulated over 3000 cycles to date, with stable capacity and voltage. Life and performance data of this electrode were investigated and presented. Good dimensional stability and active material adherence have been demonstrated in electrodes made from this lightweight plaque.
    Schlagwort(e): INORGANIC AND PHYSICAL CHEMISTRY
    Materialart: International Power Sources Symposium; Jun 13, 1988 - Jun 16, 1988; Cherry Hill, NJ; United States
    Format: text
    Standort Signatur Erwartet Verfügbarkeit
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    NASA TECHNICAL REPORTS
  • 9
    facet.materialart.
    Unbekannt
    Characterization and cycle tests of lightweight nickel electrodes (1989)
    In:  CASI
    Details
    Publikationsdatum: 2019-07-13
    Beschreibung: Development of a high specific energy nickel electrode is the main goal of the lightweight nickel electrode program at NASA Lewis Research Center. The approach was to improve the nickel electrode by continuing combined in-house and contract efforts to develop a more efficient and lighter weight electrode for the nickel-hydrogen battery. High energy nickel electrodes suffer from having shorter lives than state-of-the-art electrode. However, these lightweight electrodes appear to be favorable for missions requiring moderate cycle lives and depth-of-discharge.
    Schlagwort(e): INORGANIC AND PHYSICAL CHEMISTRY
    Materialart: NASA-TM-102399 , E-5153 , NAS 1.15:102399 , Electrochemical Society Meeting; Oct 16, 1989 - Oct 20, 1989; Hollywood, FL; United States
    Format: application/pdf
    Standort Signatur Erwartet Verfügbarkeit
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    NASA TECHNICAL REPORTS
  • 10
    facet.materialart.
    Unbekannt
    Lightweight fibrous nickel electrodes for nickel-hydrogen batteries (1989)
    In:  CASI
    Details
    Publikationsdatum: 2019-07-13
    Beschreibung: The NASA Lewis Research Center is currently developing nickel electrodes for nickel-hydrogen batteries. These electrodes are lighter in weight and have higher energy densities than the heavier state-of-the-art sintered nickel electrodes. Lightweight fibrous materials or plaques are used as conductive supports for the nickel hydroxide active material. These materials are commercial products that are fabricated into nickel electrodes by electrochemically impregnating them with active material. Evaluation is performed in half cells structured in the bipolar configuration. Initial performance tests include capacity measurements at five discharge levels, C/2, 1.0C, 1.37C, 2.0C, and 2.74C. The electrodes that pass the initial tests are life cycle-tested in a low Earth orbit regime at 80 percent depth of discharge.
    Schlagwort(e): INORGANIC AND PHYSICAL CHEMISTRY
    Materialart: NASA-TM-101997 , E-4701 , NAS 1.15:101997 , Annual Battery Conference on Applications and Advances; Jan 17, 1989 - Jan 19, 1989; Long Beach, CA; United States
    Format: application/pdf
    Standort Signatur Erwartet Verfügbarkeit
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    NASA TECHNICAL REPORTS
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