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  • 1
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    Explosion seismological study for velocity distribution and structure of the crust and upper mantle from Damxung to Yadong of the Xizang plateau (1981)
    Science Press
    In:  Professional Paper, Open-File Rept., Geological and Ecological Studies of Qinghai-Xizang Plateau, Proceedings of the Symposium on Qinghai-Xizang (Tibet) Plateau, Beijing, China, Science Press, vol. I, Geology, Geological History and Origin of the Qinghai-Xizang Plateau, no. 16, pp. 691-709, (ISBN 1-86239-165-3, vi + 330 pp.)
    Details
    Publication Date: 1981
    Keywords: Deep seismic sounding (espec. cont. crust) ; CRUST ; Tibet ; earth mantle ; BIBTEX?
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    BIBLIOGRAPHY SEISMOLOGY
  • 2
    Electronic Resource
    Electronic Resource
    Dimensions of Xf virus from its rotational and translational diffusion coefficients (1980)
    s.l. : American Chemical Society
    Biochemistry 19 (1980), S. 1373-1376 
    Details
    ISSN: 1520-4995
    Source: ACS Legacy Archives
    Topics: Biology , Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/bi00548a016
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Loop entropy of the triple helix (1981)
    s.l. : American Chemical Society
    Macromolecules 14 (1981), S. 332-335 
    Details
    ISSN: 1520-5835
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ma50003a020
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    Paper (German National Licenses)
    Fulltext
  • 4
    Electronic Resource
    Electronic Resource
    Rate of protein absorption and desorption on cellulosic ion exchangers (1982)
    Hoboken, NJ : Wiley-Blackwell
    AIChE Journal 28 (1982), S. 245-250 
    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: Both equilibrium and rate studies were made for the adsorption and desorption of Bovine Serum Albumin (B.S.A.), Fraction V, from dilute solutions using a new cellulose based ion exchange resin. Using the equilibrium data and a simple two-film theory to describe the rate data it was shown that during the initial perioid of adsorption the rate was controlled by film diffusion, after which it was controlled by intraparticle diffusion. The desorption was largely intraparticle diffusion controlled except for a very short surface desorption step. It is suggested that the model could be used to describe other protein adsorption/ion exchange processes.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/aic.690280212
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    Paper (German National Licenses)
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  • 5
    Electronic Resource
    Electronic Resource
    Steady-state behavior of ideal liquids within vessels which are shaken circularly (1981)
    New York, NY [u.a.] : Wiley-Blackwell
    Biotechnology and Bioengineering 23 (1981), S. 451-454 
    Details
    ISSN: 0006-3592
    Keywords: Chemistry ; Biochemistry and Biotechnology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/bit.260230221
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  • 6
    Electronic Resource
    Electronic Resource
    Thermal diffusivity and conductivity of crystalline polymers (1981)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 26 (1981), S. 2325-2335 
    Details
    ISSN: 0021-8995
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: The thermal diffusivity and conductivity of the isotropic and drawn samples of five semicrystalline polymers - nylon 6, poly(ethylene terephthalate), poly(butylene terephthalate), polybutene-1, and poly(4-methylpentene-1) - were measured by the flash method over the temperature range 100-350 K. The temperature dependence of the thermal diffusivity was found to follow a simple phenomenological pattern, while a more detailed understanding of the temperature dependence and the effect of orientation on thermal conductivity was obtained by using the modified Maxwell model.
    Additional Material: 13 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/app.1981.070260719
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  • 7
    Electronic Resource
    Electronic Resource
    Thermal conductivity of oriented crystalline polymers (1980)
    New York : Wiley-Blackwell
    Journal of Polymer Science: Polymer Physics Edition 18 (1980), S. 1187-1207 
    Details
    ISSN: 0098-1273
    Keywords: Physics ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: Thermal conductivities of six oriented semicrystalline polymers which range from 0.37 to 0.63 in crystallinity and 1 to 5 in draw ratio λ (up to about 15 for two polymers) have been measured between 100 and 340 K. It was found that for increasing λ the conductivity K∥ (along the draw direction n̂) increases rapidly while K⊥ (normal to n̂) decreases slightly; K∥ also increases with temperature, but K⊥ shows no simple pattern in temperature dependence. These general features can be reproduced reasonably well at low draw ratio (λ 〈 5) by the modified Maxwell model, and the discrepancy in details may be attributed to the fact that the model does not take into account the possible anisotropy of the amorphous phase of the oriented polymers. At high draw ratio the intercrystalline bridge effect becomes important, and one must resort to the Takayanagi model, but the lack of corroborating x-ray data has rendered a detailed comparison impossible.
    Additional Material: 16 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pol.1980.180180603
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  • 8
    Electronic Resource
    Electronic Resource
    Negative thermal expansivity of polymer crystals: Planar zig-zag chain model (1981)
    New York : Wiley-Blackwell
    Journal of Polymer Science: Polymer Physics Edition 19 (1981), S. 971-981 
    Details
    ISSN: 0098-1273
    Keywords: Physics ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: The thermal expansivity of polymer crystals in the direction parallel to the chain axis α∥ is studied in a planar zig-zag chain model. Using values of force constants for polyethylene, it was found that α∥ = -1.3 × 10-5 K-1, in good agreement with experimental results. Torsional modes are found to contribute slightly more than half α∥. The expansivity is independent of the mass of the atomic groups on the chain and only weakly dependent on the interchain van der Waals interaction.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pol.1981.180190606
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  • 9
    Electronic Resource
    Electronic Resource
    Negative thermal expansion of polymer crystals: Lattice model (1980)
    New York : Wiley-Blackwell
    Journal of Polymer Science: Polymer Physics Edition 18 (1980), S. 2313-2322 
    Details
    ISSN: 0098-1273
    Keywords: Physics ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: The lateral thermal motion of atoms in an inextensible polymer chain would cause a shortening along the chain direction. This effect could explain the observed negative thermal expansivity α along the chain direction of a polymer crystal. Using this idea, the expansivity α is calculated for a lattice of parallel linear chains. A value of -1.3 × 10-5 K is obtained for chains with a carbon backbone, in good agreement with data for polyethylene.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pol.1980.180181201
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  • 10
    Electronic Resource
    Electronic Resource
    Negative thermal expansion in oriented crystalline polymers (1981)
    New York : Wiley-Blackwell
    Journal of Polymer Science: Polymer Physics Edition 19 (1981), S. 335-352 
    Details
    ISSN: 0098-1273
    Keywords: Physics ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: Measurements on the thermal expansivity α∥ and α⊥ (along and normal to the draw direction, respectively) have been carried out for a series of oriented polymers with widely different crystallinities (0.36-0.81) and draw ratios (1-20) and over large temperature ranges covering the major amorphous transitions in each case. While α⊥ increases with temperature, α∥ tends to decrease sharply above the transition temperature. For highly crystalline polymers, α∥ decreases to values typical of polymer crystals (-1 × 10-5 K-1) and this can be attributed to the constraining effect of the crystalline bridges connecting the crystalline blocks. However, for polymers of lower crystallinity, α∥ may become an order of magnitude more negative and this remarkable phenomenon is attributed to the rubber-elastic contraction of taut tie-moleucles. Since taut tie-molecules and bridges have drastically different effects on α∥ at high temperatures, this allows a rough determination of their relative fractions.
    Additional Material: 15 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pol.1981.180190213
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