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  • Inorganic Chemistry  (2)
  • Aircraft Propulsion and Power  (1)
  • Aircraft Stability and Control
  • 1950-1954  (3)
  • 1930-1934
  • 1915-1919
  • 1910-1914
  • 1952  (3)
Collection
Keywords
Publisher
Years
  • 1950-1954  (3)
  • 1930-1934
  • 1915-1919
  • 1910-1914
Year
  • 1
    Electronic Resource
    Electronic Resource
    Der Einfluß von Katalysatoren auf den Verlauf der Friesschen ReaktionDiese Arbeit ist wie die vorstehende Herrn Geheimrat Professor Dr. H. Wieland zu seinem 75. Geburtstag gewidmet. (1952)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 85 (1952), S. 585-590 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Es werden die gebräuchlichsten katalysatoren zur Einleitung einer Friesschen Reaktion sowie einige bisher nicht benutzte Halogenide und Organometallhalogenide auf ihre Wirksamkeit untersucht. Es zeigt sich, daß bei Umlagerungen von α-Naphthylacetat in Nitrobenzol als Lösungsmittel die erzielte Ausbeute und auch die Richtung der Isomerisierung vom benutzten Metallhalogenid abhängt. Bei Umlagerungen ohne Lösungsmittel werden dagegen nur die Ausbeuten an Oxyketon beeinflußt.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19520850614
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    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Über die monokline Modifikation des basischen Berylliumacetats (1952)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 270 (1952), S. 298-300 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Aus heißer Lösung in Tetralin kristallisiert basisches Berylliumacetat Be4O(CH3COO)4 in Form von gut ausgebildeten, doppelbrechenden Prismen. Diese haben das gleiche monokline Gitter wie das sublimierte Berylliumacetat. Bei Raumtemperatur gehen sie langsam in die reguläre Form über.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19522700504
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    Paper (German National Licenses)
    Fulltext
  • 3
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    Preliminary Air-Flow and Thrust Calibrations of Several Conical Cooling-Air Ejectors with a Primary to Secondary Temperature Ratio of 1.0 (1952)
    In:  CASI
    Details
    Publication Date: 2019-07-10
    Description: An investigation was made of the performance of nine conical cooling-air ejectors at primary jet pressure ratios from 1 to 10, secondary pressure ratios to 4.0, and a temperature ratio of unity. This phase of the investigation was limited to conical ejectors having shroud exit to primary nozzle exit diameter ratios of 1.06 and 1.40, with several spacing ratios for each. The experimental results indicated that the pumping range and amount of cooling-air flow obtained with a 1.06 diameter ratio ejector were relatively small for cooling purposes but that the maximum possible thrust loss, which occurred with no secondary flow, was only 7 percent of convergent nozzle thrust. The 1.40 diameter ratio ejector produced a large cooling air flow and showed a possible thrust loss of 29.5 percent with no cooling air flow. Thrust gains were attained with ejectors of both diameter ratios at secondary pressure ratios greater than 1.0. The limiting primary pressure ratio below which an ejector can operate at a specific secondary pressure ratio (cut-off point) may be estimated for various flight conditions from data contained herein.
    Keywords: Aircraft Propulsion and Power
    Type: NACA-RM-E52F26
    Format: application/pdf
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