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  • 1
    Electronic Resource
    Electronic Resource
    Scanning electron microscopy of scales from different body regions of three lizard species (1973)
    New York, NY : Wiley-Blackwell
    Journal of Morphology 139 (1973), S. 377-388 
    Details
    ISSN: 0362-2525
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Notes: The Oberhautchen of scales from the dorsal, parietal, and ventral regions of Sceloporus occidentalis (Iguanidae), Gerrhonotus multicarinatus (Anguinidae), and Anniella pulchra (Anniellidae) were examined with a scanning electron microscope. At low magnification, all scales of S. occidentalis exhibit well-defined outlines of cells belonging to the Oberhautchen layer and the previously overlying clear layer. The dorsal and parietal cells of this species exhibit a minutely dentate Oberhautchen that forms tooth-like spinules 0.2 to 0.5 μ long and arranged in irregular rows. Minute pits 0.1 to 0.3 μ in diameter characterize the Oberhautchen of a ventral scale.Cell outlines are not evident on the scales of G. multicarinatus. The Oberhautchen of dorsal and parietal scales of this species is prominently laminated. Laminae are less prominent on scales of the lateral fold, and no intrinsic surface structure is evident on a ventral scale. In contrast, the fossorial anguinomorph Anniella pulchra exhibits Oberhautchen surfaces with practically no intrinsic microornamentation. However, what appear to be outlines of Oberhautchen cells are visible on the dorsal and ventral scales.These observations suggest that modifications of Oberhautchen microornamentation may have evolved to reduce friction with the substrate or other scales. The lack of pronounced microornamentation of the Oberhautchen on some body scales may indicate that a complex interdigitation between clear layer and Oberhautchen cells is not essential to the sloughing process.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jmor.1051390402
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  • 2
    Electronic Resource
    Electronic Resource
    Developments in mechanics, Vol. 5, Proceeding of the 11th Midwestern Mechanics Conference, H. J. Weiss, D. F. Young, W. F. Riley, and T. R. Rogge, editors, The Iowa State University Press, Ames, Iowa (1969), 1001 pages. $22.50 (1970)
    Hoboken, NJ : Wiley-Blackwell
    AIChE Journal 16 (1970), S. 162-162 
    Details
    ISSN: 0001-1541
    Keywords: Chemistry ; Chemical Engineering
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/aic.690160202
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  • 3
    Electronic Resource
    Electronic Resource
    Forced convection in three-dimensional flows: II. Asymptotic solutions for mobile interfaces (1970)
    Hoboken, NJ : Wiley-Blackwell
    AIChE Journal 16 (1970), S. 771-786 
    Details
    ISSN: 0001-1541
    Keywords: Chemistry ; Chemical Engineering
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Boundary-layer solutions are given for heat and mass transfer at mobile interfaces. The results are asymptotically valid for small thermal and material diffusivities, or for short exposure times. Phase breakup and coalescence are formally included, but Marangoni effects are not. Effects of rapid mass transfer, chemical reactions, and variable boundary conditions are evaluated. The treatment is a generalization of the penetration and surface-renewal theories.
    Additional Material: 10 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/aic.690160516
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  • 4
    Electronic Resource
    Electronic Resource
    Errata (1973)
    Hoboken, NJ : Wiley-Blackwell
    AIChE Journal 19 (1973), S. 1286-1286 
    Details
    ISSN: 0001-1541
    Keywords: Chemistry ; Chemical Engineering
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/aic.690190645
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  • 5
    Electronic Resource
    Electronic Resource
    Letters to the editor (1972)
    Hoboken, NJ : Wiley-Blackwell
    AIChE Journal 18 (1972), S. 875-876 
    Details
    ISSN: 0001-1541
    Keywords: Chemistry ; Chemical Engineering
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/aic.690180443
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  • 6
    Electronic Resource
    Electronic Resource
    Multicomponent mass transfer in turbulent flow (1973)
    Hoboken, NJ : Wiley-Blackwell
    AIChE Journal 19 (1973), S. 398-400 
    Details
    ISSN: 0001-1541
    Keywords: Chemistry ; Chemical Engineering
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/aic.690190237
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  • 7
    Electronic Resource
    Electronic Resource
    The role of porosity in filtration VII effect of side-wall friction in compression-permeability cells (1972)
    Hoboken, NJ : Wiley-Blackwell
    AIChE Journal 18 (1972), S. 13-20 
    Details
    ISSN: 0001-1541
    Keywords: Chemistry ; Chemical Engineering
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: The effect of side-wall friction on the uniformity of packing of beds in compression-permeability cells is examined. A large portion of pressure applied to the top of a compressible bad is absorbed in wall friction, resulting in a nonuniformly packed bed. A simplified analysis of wall friction and its effect on porosity and permeability is presented.All experimenters involived in flow through porous media are urged to examine the effects of stress distribution on the structure and uniformity of the packing. In general, compressible beds of small particles will be strongly affected by the walls.
    Additional Material: 7 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/aic.690180104
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  • 8
    Electronic Resource
    Electronic Resource
    Computational models for cylindrical catalyst particles (1973)
    Hoboken, NJ : Wiley-Blackwell
    AIChE Journal 19 (1973), S. 969-975 
    Details
    ISSN: 0001-1541
    Keywords: Chemistry ; Chemical Engineering
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: A study is made of computational methods for predicting the performance of cylindrical catalyst particles in reactions with nonlinear kinetics. Accurate two-dimensional collocation solutions are obtained and used to test simplified solution methods. A novel parametric integration method is used to traverse the region of multiple solutions. The local stability of several states is determined.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/aic.690190513
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  • 9
    Electronic Resource
    Electronic Resource
    Nucleation and growth of bubbles in elastomersPresented at the Gordon Research Conference on the Chemistry and Physics of Cellular Materials, New Hampton, New Hampshire, August 20, 1969. (1970)
    New York : Wiley-Blackwell
    Journal of Polymer Science Part A-2: Polymer Physics 8 (1970), S. 937-955 
    Details
    ISSN: 0449-2978
    Keywords: Physics ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: The theory of homogeneous nucleation of bubbles is combined with an expression, for their rate of growth in elastomers to obtain approximate expressions for calculating the number of bubbles formed under a high degree of supersaturation. Experimental results are given for several elastomers with argon as the dissolved gas under a variety of foaming conditions. The theory adequately describes the manner in which the number of bubbles formed depends on the temperature, surface tension of the polymer, and permeability of the dissolved gas.
    Additional Material: 9 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pol.1970.160080609
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  • 10
    Electronic Resource
    Electronic Resource
    Thermoplastic polyurethane hydrolysis stability (1973)
    Weinheim : Wiley-Blackwell
    Angewandte Makromolekulare Chemie 29 (1973), S. 413-430 
    Details
    ISSN: 0003-3146
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Description / Table of Contents: Die Hydrolysestabilität einiger thermoplastischer Poly(ester-urethan)-Elastomerer in Abhängigkeit vom molekularen Aufbau wird untersucht. Entscheidend für den hydrolytischen Abbau dieser Polymeren ist das Auftreten von Carboxylgruppen. Es werden Möglichkeiten aufgezeigt, diesen Abbau zu verringern, so z. B. durch Zusatz von Poly(carbodiimiden). Abschließend werden die Hydrolysestabilität von thermoplastischen Poly(ester-urethan)-Elastomeren untersucht, die Poly-(∊-Caprolacton) und Poly(hexamethylencarbonat) als Glykolkomponente enthalten.
    Notes: This paper reviews several types of thermoplastic polyurethane elastomers, and the unique properties these polymers have. In discussing the hydrolysis stability of thermoplastic polyurethane elastomers the suitability of these polymers for such study was pointed out. A relationship between poly(ester-urethane) composition in terms of methylene group concentration, hardness and chain stiffness, and hydrolysis stability was shown. The dominant role of polyurethane acid number in thermoplastic poly(ester-urethane) hydrolysis stability was demonstrated and the origin of this unexpected acid number was discussed. The pronounced stabilizing action of added poly(carbodiimide) in thermoplastic poly(ester-urethane) hydrolysis was shown, as well as the severe destabilizing action of a carboxylic acid, stearic acid. The hydrolysis stabilities of thermoplastic poly(ester-urethane) elastomers based on poly(∊-caprolactone) glycol and on poly(hexamethylene carbonate) glycol were also described.
    Additional Material: 15 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/apmc.1973.050290118
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