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  • 1
    Electronic Resource
    Electronic Resource
    Diffusion phenomena during the decaffeination of coffee beans (1976)
    Oxford, UK : Blackwell Publishing Ltd
    International journal of food science & technology 11 (1976), S. 0 
    Details
    ISSN: 1365-2621
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Process Engineering, Biotechnology, Nutrition Technology
    Notes: The diffusion of caffeine in green coffee beans was investigated at atmospheric pressure using dichlormethane as a solvent.The diffusion coefficient of caffeine was determined as a function of temperature and water content of the beans. the mathematical treatment was based on Fick's second law of diffusion applied to a spherical model.The apparent diffusion coefficients are in the range of 0.2-1.1. 10−6 cm2 sec−1.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.1976.tb00767.x
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    The ground-state phase diagram of the spinless 1D Falicov-Kimball model: numerical studies (1999)
    Springer
    Czechoslovak journal of physics 49 (1999), S. 1105-1113 
    Details
    ISSN: 1572-9486
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Extrapolation of small-cluster exact-diagonalization calculations is used to study the ground state phase diagram of the spinless one-dimensional Falicov-Kimball model at half filling. Our results show that the phase diagram has an extremely simple structure for the Coulomb interactions U ≥ 2. Here the ground states are the most homogeneous configurations (mhc) with the smallest periods. Valence transitions are discontinuous and only of the type insulator-insulator. In this region the finite size effects are negligible and thus the picture of valence transitions is definitive. For U 2 the phase diagram exhibits a more complicated structure. Here we have specified a domain where the ground states are the mhc and a metallic domain where the ground states are mixtures of configurations with the empty configuration. The boundary between these two domains is the boundary of discontinuous insulator-metal transitions. Unlike the case U ≥ 2 the valence transitions are gradual in the weak coupling limit.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1022846110907
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Bindungsfähigkeit von casein für natriumchlorid bei hohen wasseraktivitäten. Untersuchungen mit einer neuartigen isopiestischen sorptionsapparatur (1977)
    New York : Wiley-Blackwell
    Die Makromolekulare Chemie 178 (1977), S. 1535-1544 
    Details
    ISSN: 0025-116X
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: A new isopiestic sorption apparatus and its application to the determination of the binding capacity of casein for sodium chloride are described. The method provides reliable binding values in equilibrium with salt solutions of medium and high concentrations.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/macp.1977.021780526
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    Paper (German National Licenses)
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