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  • 1
    Electronic Resource
    Electronic Resource
    The influence of walls on the motion of a sphere in non-Newtonian liquids (1983)
    Springer
    Rheologica acta 22 (1983), S. 27-33 
    Details
    ISSN: 1435-1528
    Keywords: Wall effect ; pseudoplasticity ; sphere ; drag
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: Abstract The influence of the contained wall on the drag of a sphere moving through a non-Newtonian fluid is analysed in this work separately for the low Reynolds number and the high Reynolds number regions. In the former, we make use of the two-concentric-sphere model. It is predicted that the wall effect will decrease with the increase of the shear-thinning anomaly and this is in a reasonable agreement with the available experimental data and correlations. The wall effect in the high Reynolds number region is analysed in this work using the cell model (used to study the motion of an assemblage of solid spheres) and the predictions are in satisfactory agreement with the available empirical correlation for non-Newtonian fluids.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01679826
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Mass transfer from cylinders rotating in Newtonian fluids and dilute polymer solutions (1983)
    Springer
    Journal of applied electrochemistry 13 (1983), S. 289-293 
    Details
    ISSN: 1572-8838
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Electrical Engineering, Measurement and Control Technology
    Notes: Abstract A new theoretical expression for tubulent mass transfer from a rotating cylinder has been proposed using Levich's three-zone model. The predictions of this model, which has no adjustable parameters, were compared with available experimental data and with other correlations for Newtonian fluids and the agreement was found very satisfactory. Equally good agreement was found between the predictions of our model and the available data for mass transfer from a rotating cylinder under the conditions of maximum drag reduction.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00941600
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    A power-law fluid flow past a porous sphere (1981)
    Springer
    Rheologica acta 20 (1981), S. 128-132 
    Details
    ISSN: 1435-1528
    Keywords: Pseudoplasticity ; porous wall ; sphere ; drag ; sheardependent viscosity
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Physics
    Description / Table of Contents: Zusammenfassung Es wird ein Modell für die Strömung einer nichtnewtonschen Flüssigkeit längs einer porösen Kugel entwickelt. Die auf die in einer Ostwald-DeWaele-Flüssigkeit bewegte Kugel ausgeübte Reibungskraft wird durch eine Näherungslösung der Bewegungsgleichungen für schleichende Strömung gewonnen. Man findet, daß der Einfluß der Abweichung vom newtonschen Verhalten um so ausgeprägter wird, je größer die Porosität ist.
    Notes: Summary A model has been developed for the flow of a non-Newtonian fluid past a porous sphere. The drag force exerted on a porous sphere moving in a power-law fluid is obtained by an approximate solution of equations of motion in the creeping flow regime. It is predicted that the effect of the pseudoplastic anomaly on the drag force is more pronounced at large porosity parameters.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01513055
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Search for an isomer in94Rb (1984)
    Springer
    The European physical journal 318 (1984), S. 191-193 
    Details
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Measurements of theβ-ray half-life,γ-ray and X-ray spectra andγ-ray half-lives have been done with a plastic scintillation detector, a high resolution Ge(HP) detector and a 142 cm3 Ge(Li) detector to search for an isomeric state in94Rb. Mass-separated activities of94Rb were obtained from the He-jet type on-line mass-separator at the Kyoto University reactor. No isomeric transition was found in theγ-ray and X-ray measurements with the upper limits of 3×10−4 and 8×10−5, respectively, as compared with the 836.9 keV transition. Half-lives obtained from theγ-ray decay measurements are discussed in the light of classification given byQ β -value measurements.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01413467
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    Paper (German National Licenses)
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  • 5
    Electronic Resource
    Electronic Resource
    Letters to the editor (1984)
    Hoboken, NJ : Wiley-Blackwell
    AIChE Journal 30 (1984), S. 526-528 
    Details
    ISSN: 0001-1541
    Keywords: Chemistry ; Chemical Engineering
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Additional Material: 1 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/aic.690300335
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  • 6
    Electronic Resource
    Electronic Resource
    Non-Newtonian fluid-particle mass transfer in granular beds (1983)
    Hoboken, NJ : Wiley-Blackwell
    AIChE Journal 29 (1983), S. 689-691 
    Details
    ISSN: 0001-1541
    Keywords: Chemistry ; Chemical Engineering
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/aic.690290427
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    Paper (German National Licenses)
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