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  • Rankine criterion  (1)
  • Rutilus rutilus L.  (1)
  • taurine  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Screening for organic acids in fish tissues with special reference to the distribution of taurine inRutilus rutilus L. (1987)
    Springer
    Fish physiology and biochemistry 3 (1987), S. 145-149 
    Details
    ISSN: 1573-5168
    Keywords: Rutilus rutilus L. ; cyprinids ; organic acids ; taurine ; HPLC
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract A liquid chromatographic method for rapid profiling of some organic acids and other compounds of physiological interest in fish tissues is presented. The method provides the detection of α-ketoglutaric, malic and pyruvic acid and is optimized for the quantitation of citric, phosphoric, succinic, lactic and fumaric acids, as well as glucose and especially taurine. These substances were separated in a single analytical run on a cation exchange column with dilute sulfuric acid as the elutant. The effluent was monitored by a refractive index or an UV detector at 208 nm wavelength. Resolution was satisfactory. No further treatment was found to be necessary when samples were deproteinized with perchloric acid. Taurine (2-aminoethansulfonic acid), not previously described in the roach (Rutilus rutilus L.), occurs in considerable amounts in red and white muscle and heart tissue. However, it is also present in all other tissues.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02180416
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  • 2
    Electronic Resource
    Electronic Resource
    An anisotropic elastoplastic-damage model for plain concreteThis paper is dedicated to Prof. F. Ziegler on the occasion of his 60th birthday (1998)
    Chichester [u.a.] : Wiley-Blackwell
    International Journal for Numerical Methods in Engineering 42 (1998), S. 703-727 
    Details
    ISSN: 0029-5981
    Keywords: damage ; plasticity ; concrete ; cracking ; Rankine criterion ; finite element analysis ; Engineering ; Numerical Methods and Modeling
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mathematics , Technology
    Notes: A material model for plain concrete formulated within the framework of multisurface elastoplasticity-damage theory is proposed in this paper. Anisotropic stiffness degradation as well as inelastic deformations are taken into account. The applicability of the model encompasses cracking as well as the non-linear response of concrete in compression. The effect of different softening laws on the stress-strain relationship and on the dissipation is investigated in the context of a 1D model problem. The integration of the evolution laws is based on the standard return map scheme. Further computational issues include the stability of the local iteration procedure and the treatment of the apex region of the damage surface. The model is employed for re-analyses of a cylinder splitting test and of a notched concrete beam. Results from the composite elastoplastic-damage model are compared with test results and results from other material models for concrete, respectively. © 1998 John Wiley & Sons, Ltd.
    Additional Material: 17 Ill.
    Type of Medium: Electronic Resource
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