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  • 1
    Electronic Resource
    Electronic Resource
    Cambridge : Cambridge University Press
    Urban history 1 (1974), S. 99-101 
    ISSN: 0963-9268
    Source: Cambridge Journals Digital Archives
    Topics: Architecture, Civil Engineering, Surveying , History , Sociology
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Archive of applied mechanics 27 (1959), S. 227-241 
    ISSN: 1432-0681
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Conclusions The extensions of Trostel's solutions derived in this paper may be employed tor general ν over wide conditions with a resulting error less than 3%, the stress values being too small in magnitude by this amount. The error decreases as the variation of physical properties of the media decreases or as ν → 1/2.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Archive of applied mechanics 29 (1960), S. 260-261 
    ISSN: 1432-0681
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Conclusion We therefore conclude that the approximate solution B gives in a single operation, the “Grundlösung” and about 70% of the first correction term of the exact solution A.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Archive of applied mechanics 31 (1962), S. 241-249 
    ISSN: 1432-0681
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Conclusion For many purposes, the infinite series can be neglected in equations (29) and (30) for the stress field in a hollow sphere and in equations (47) and (48) for a solid sphere. The error estimate from equation (42) or equation (46) may be used as a criterion for deciding whether or not this is permissible. Finally, the method outlined in preceeding discussion is applicable to any one-dimensional thermoelastic problem with only very mild requirements on the variation of Young's Modulus as specified by equation (39). As would be suspected, the use of the procedure for higher dimensional problems entails the specific assumption that second order variations in Young's Modulus are negligibly small if any degree of calculational simplicity is to be retained. Still, this does not require small variations of first order.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Hoboken, NJ : Wiley-Blackwell
    AIChE Journal 12 (1966), S. 17-20 
    ISSN: 0001-1541
    Keywords: Chemistry ; Chemical Engineering
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: This paper describes a preliminary study of the linear flow of a non-Newtonian fluid, a water solution of Dextra (a polysaccharide), in porous media. A modification of Darcy's law, which uses capillary rheology data, is developed to describe non-Newtonian flow in underground reservoirs. The generalization, in effect, replaces the porous media with a capillary of equivalent radius proportional to the square root of the ratio of permeability to porosity. The constant of proportionality αo should be independent of permeability and porosity for a given type of rock. This has been partially confirmed experimentally. In principle, a capillary rheogram and a single core test permit evaluation of αo. Then non-Newtonian flow can be predicted in this type of rock regardless of porosity, permeability, or flow rate.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
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