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  • dispersion  (2)
  • 21.60.-n  (1)
  • 1
    Digitale Medien
    Digitale Medien
    Surface wave propagation in a transversely isotropic elastic layer overlying a liquid saturated porous solid half-space and lying under the uniform layer of liquid (1990)
    Springer
    Pure and applied geophysics 133 (1990), S. 523-539 
    Details
    ISSN: 1420-9136
    Schlagwort(e): Surface waves ; transversely isotropic ; liquid saturated porous solid ; dispersion ; Rayleigh type waves ; nondissipative porous media ; frequency equation ; phase velocity
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Geologie und Paläontologie , Physik
    Notizen: Abstract Dispersion of Rayleigh-type surface wave is studied in a homogeneous transversely isotropic elastic layer overlying a nondissipative liquid-saturated porous solid half-space and lying under a uniform layer of homogeneous liquid. The frequency equation in the form of ninth-order determinant is obtained. Special cases have been deduced by reducing the depth of the layers to zero and by changing the transverse isotropic layer to an isotropic layer. Dispersion curves for the phase velocity have been plotted for a particular model.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00878003
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  • 2
    Digitale Medien
    Digitale Medien
    A LGA model for dispersion in heterogeneous porous media (1994)
    Springer
    Transport in porous media 17 (1994), S. 19-32 
    Details
    ISSN: 1573-1634
    Schlagwort(e): LGA model ; heterogeneous porous media ; miscible displacement ; dispersion ; tracer
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Geologie und Paläontologie , Technik allgemein
    Notizen: Abstract The lattice gas automaton (LGA) model proposed in the previous paper is applied to the problem of simulating dispersion and mixing in heterogeneous porous media. We demonstrate here that tracer breakthrough profiles and longitudinal dispersion coefficients can be computed for heterogeneous porous media.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00624048
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  • 3
    Digitale Medien
    Digitale Medien
    Compression properties of finite nuclei in a semi-classical relativistic approach (1991)
    Springer
    The European physical journal 339 (1991), S. 147-154 
    Details
    ISSN: 1434-601X
    Schlagwort(e): 11.10.Ef ; 21.10-k ; 21.60.-n
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Physik
    Notizen: Abstract Skyrme type potentials are known to lead — in the framework of the scaling model — to a finite-nucleus incompressibility valueK A where the volume coefficientK v equals roughly the negative surface coefficient Ks. This is found for Skyrme interactions with Kv between 200 and 360 MeV. In a semi-classical relativistic approach on the basis of theσ — ω model (linear as well as non-linear) using in addition local density approximations, we findK s to depend in particular on the surface energy coefficienta s , and not so much on the value ofK v . For a realistic value of as, both the linear and the non-linearσ — ω model (with NL1 parameter set) yield a ratio ¦K s K v ¦ of approximately 1. We discuss implications of this finding with a particular view on recent empirical results onK v andK s .
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01282944
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