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  • 1985-1989  (3)
  • 85.70  (2)
  • Natural products  (1)
  • 51
  • 1
    Digitale Medien
    Digitale Medien
    Ordered HGMS filters in the transverse configuration (1987)
    Springer
    Applied physics 44 (1987), S. 161-166 
    Details
    ISSN: 1432-0630
    Schlagwort(e): 85.70
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Maschinenbau , Physik
    Notizen: Abstract A numerical solution for the Navier-Stokes equation is obtained for the flow conditions in an ordered high-gradient magnetic filter. Hence, capture efficiencies are calculated for this filter operated in the transverse configuration, with field, flow, and collector-wire axis mutually perpendicular. Good agreement with experiment is obtained over a wide range of filter parameters. Comparisons are made with results obtained by other models.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00626418
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 2
    Digitale Medien
    Digitale Medien
    Particle accumulation on a single wire in transverse HGMS configuration (1987)
    Springer
    Applied physics 42 (1987), S. 117-124 
    Details
    ISSN: 1432-0630
    Schlagwort(e): 85.70 ; 41
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Maschinenbau , Physik
    Notizen: Abstract An experimental investigation of particle accumulation on a single wire in the transverse HGMS configuration is presented. For saturation buildup we obtain a monotonic decrease of the coefficient of static frictionf sat with the flow velocityv a on the basis of the “friction model”. The power law of the dependence of the saturation accumulation area onv a , predicted by this model, is experimentally verified. Furthermore, we present an empirical law describing the dependence of the accumulation area on timeτ and on flow velocityv a for the entire buildup process. From the investigation of the initial accumulation we conclude that existing theories of the so-called capture radius do not satisfactorily describe the situation near the end of a capture wire.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00616720
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  • 3
    Digitale Medien
    Digitale Medien
    Synthesis and Biological Activity of α-Methylene-γ-butyrolactonesDedicated to Dr. Wilhelm A. Schuler on the occasion of his 70th birthday (1985)
    Weinheim : Wiley-Blackwell
    Angewandte Chemie International Edition in English 24 (1985), S. 94-110 
    Details
    ISSN: 0570-0833
    Schlagwort(e): α-Methylene-γ-butyrolactones ; Butyrolactones ; Lactones ; Natural products ; Chemistry ; General Chemistry
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie
    Notizen: α-Methylene-γ-butyrolactones [dihydro-3-methylene-2(3H)furanones] constitute an important group of natural products and possess wide-ranging biological activities. Progress in the synthesis of the heterocycle and the classification of the synthetic methods are not only of practical interest, but also fundamentally important as a current example for the construction of an unusual 1,4-functionality distance and an α-substituted acrylic ester moiety which is susceptible to nucleophilic attack.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/anie.198500941
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