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  • Biotechnology  (1)
  • Polymer and Materials Science  (1)
  • Physics
  • chemostat
  • Wiley-Blackwell  (2)
  • 1970-1974  (1)
  • 1965-1969  (1)
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  • Wiley-Blackwell  (2)
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  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Materialwissenschaft und Werkstofftechnik 5 (1974), S. 407-412 
    ISSN: 0933-5137
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: The Gradient of the S, N-curve. The classical two-parameter basic equations of Wöhler and Basquin and also the four-parameter equation of Palmgren/Weibull approximate the Wöhler curve in certain ranges only. They fail in particular when one attempts to use them to convert a service life increase into the appropriate gain in strength. For a more exacting analysis these approximations must be replaced by models of the Wöhler curve which are nearer to actual reality.
    Notes: Die klassischen Zwei-Parameter-Ansätze von Wöhler und Basquin, aber auch der Vier-Parameter-Ansatz von Palmgren/Weibull approximieren die S, N-Kurve nur bereichsweise; vor allem versagen sie, wenn man sich ihrer bedienen will, um eine erzielte Lebensdauersteigerung in den entsprechenden Festigkeitsgewinn umzurechnen: Bei anspruchsvolleren Analysen müssen diese Approximationen durch wirklichkeitsnähere Modelle der Wöhlerkurve ersetzt werden.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Angewandte Chemie International Edition in English 5 (1966), S. 653-662 
    ISSN: 0570-0833
    Keywords: Biotechnology ; Fermentation ; Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: The preparation of organic substances with the aid of the enzyme systems of micoorganisms has become competitive as a result of recent progress in the technology of fermentation. The relatively high cost of apparatus and the lower production capacity of microbiological plants in relation to the plants used in purely chemical processes are offset in many cases by the advantages of biological methods (reactions at conventionally inactive positions in the molecule, stereospecific substitutions, coupling of several reactions, mild reaction conditions, possible use of waste products).
    Additional Material: 10 Ill.
    Type of Medium: Electronic Resource
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