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  • 1975-1979  (3)
  • 1
    Electronic Resource
    Electronic Resource
    Exact results for transport properties of anisotropic Fermi superfluids near the transition temperature (1976)
    Springer
    Journal of low temperature physics 23 (1976), S. 225-230 
    Details
    ISSN: 1573-7357
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: We discuss transport and relaxation processes in an anisotropic superfluid close to the transition temperature by deriving the quasiparticle Boltzmann equation. As an application we calculate the shear viscosity of liquid 3He exactly to first order in the superfluid gap, in terms of normal state properties. Exact results for the transport coefficients and relaxation rates in the super-fluid enable one to extract precise information about normal state scattering amplitudes from measurements in the superfluid phases.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00117252
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Fluctuation contribution to the velocity and damping of sound in liquid 3He above the superfluid transition temperature (1979)
    Springer
    Journal of low temperature physics 37 (1979), S. 379-387 
    Details
    ISSN: 1573-7357
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract We have developed a theory, valid for arbitrary frequencies, to calculate the change in the velocity and damping of sound due to fluctuations of the order parameter just above the superfluid transition temperature in liquid 3He. While the theory is approximate, it gives the exact high-frequency limit and is off the exact low-frequency limit by less than 0.5%. We show that careful measurements on the frequency dependence of the fluctuation contribution should allow one to obtain information on the nature of quasiparticle interactions in the normal liquid.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00119195
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Reaction between nitrous acid and hydrogen peroxide in perchloric acid medium (1977)
    New York, NY : Wiley-Blackwell
    International Journal of Chemical Kinetics 9 (1977), S. 629-640 
    Details
    ISSN: 0538-8066
    Keywords: Chemistry ; Physical Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: A kinetic investigation on the reaction has been carried out in HClO4 medium under different conditions. A spectrophotometric method of estimation of nitrous acid at various time intervals has been employed. The results are interpreted on the basis ofthe following mechanism: The absolute rate constant value of 39.7 M-1 plusmn; s-1 for k4 and the equilibrium constant Keq = 116M-1 for reaction (2) have been evaluated. The activation energy of the overall reaction has also been determined as Ea = 13.2 kcal/mol.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/kin.550090411
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    Paper (German National Licenses)
    Fulltext
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