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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Letters in mathematical physics 32 (1994), S. 241-248 
    ISSN: 1573-0530
    Keywords: 35Rxx ; 53Axx
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics , Physics
    Notes: Abstract The Estabrook-Wahlquist prolongation method is applied to the (compact and noncompact) continuous isotropic Heisenberg model in 1 + 1 dimensions. Using a special realization (an algebra of the Kac-Moody type) of the arising incomplete prolongation Lie algebra, a whole family of nonlinear field equations containing the original Heisenberg system is generated.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
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  • 2
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Angewandte Makromolekulare Chemie 40 (1974), S. 465-483 
    ISSN: 0003-3146
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Description / Table of Contents: Poly-[2,2′;-(m-phenylen)-5,5′-bisbenzimidazol] (PBI) wurde ursprünglich als faserbildendes Polymeres für militärische Anwendungen entwickelt. Die später festgestellte Nichtentflammbarkeit (LOI 48%) und hohe Wasseraufnahme (13%) erweiterten die möglichen Anwendungsbereiche beträchtlich, z. B. auf dem Gebiet der Schutzanzüge. In jüngster Zeit wurden PBI-Folien und Hohlfasern erfolgreich als Membranen für die Reversosmose in der Entsalzung von Brack- und Meerwasser eingesetzt.
    Notes: Poly-[2,2′-(m-phenylene)-5,5′-bisbenzimidazole] (PBI) was originally developed as a fiber-forming polymer for military applications. The eventually established intrinsic nonflammability (LOI 48%) and high moisture regain (13%) expanded application areas significantly; e.g., into protective suits. More recently, PBI flat membranes and hollow fils were successfully tested as reverse osmosis membranes in brine and sea water desalination.
    Additional Material: 11 Ill.
    Type of Medium: Electronic Resource
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