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  • 1
    Electronic Resource
    Electronic Resource
    The thermal stress system associated with a moving heat source (1964)
    Springer
    Flow, turbulence and combustion 13 (1964), S. 144-148 
    Details
    ISSN: 1573-1987
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Summary A derivation is given of the thermal stress system associated with a source of heat moving with uniform velocity through an infinite medium.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00382042
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  • 2
    Electronic Resource
    Electronic Resource
    Structural and electrical properties of the glassy semiconductor system Cu-As-Te (1988)
    Springer
    Journal of materials science 23 (1988), S. 1399-1404 
    Details
    ISSN: 1573-4803
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract A method has been developed for measuring electrical conductivity in bulk samples of glassy semiconductors, based on the procedure described by Valdes, which is used to determine the conductivity of the compositions CU0.05As0.50Te0.45 and Cu0.15As0.40Te0.45. These experimental results are justified by the structural models corresponding to each of the compositions. The estimates of the number of bonds of each of the possible types, as well as their ionization energies, are used for this purpose. This analysis is preceded by the description of an electrical conduction model for this type of semiconductor material. Finally, the results obtained in the study of the properties of electrical switching are given.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01154607
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  • 3
    Electronic Resource
    Electronic Resource
    Structural and electrical properties of the glassy semiconductor system Cu-As-Te (1988)
    Springer
    Journal of materials science 23 (1988), S. 1709-1717 
    Details
    ISSN: 1573-4803
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract An X-ray diffraction radial-distribution study of Cu0,05As0,50Te0.45 (MI) and Cu0.15As0.40Te0.45 (MII) amorphous alloys obtained by the melt-quench method has been performed. The short-range order proposed from the radial distribution function (RDF) interpretation was calculated from a theoretical expression that takes into account the variation with s (scattering vector modulus) of the atomic scattering factor, and approximating it to polynomial functions. The local order of both alloys presents a deviation from the covalent character of the arsenic and tellurium elements bound to copper, increasing the mean coordination and not fitting the “octet” rule. For an in-depth study of the structural characteristics, tridimensional models were built by computer simulation of an X-ray diffraction experiment. Refinement was carried out by the Metropolis-Monte Carlo method with some modifications. The basic structure of both models may be described by a network of tetrahedra centred on copper and arsenic atoms. As both clusters are intermingled, the network connectivity is increased. Both models present a certain number of tellurium atoms with dangling bonds with average bonding distances above the mean value in the model which, together with the copper concentration, may be responsible for its decreased electrical resistivity.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01115710
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  • 4
    Electronic Resource
    Electronic Resource
    A continuum approach to the second-sound effect (1975)
    Springer
    Journal of elasticity 5 (1975), S. 237-248 
    Details
    ISSN: 1573-2681
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract Standard techniques of continuum mechanics are used to describe the flow of certain microscopic excitations which are believed to give rise to the second-sound phenomena in some materials at low temperatures. Appropriate balance laws are formulated, and constitutive equations for an elastic solid are postulated. The propagation of small-amplitude second-sound waves is discussed and the results compared with those predicted by the theory of Lord and Shulman [1].
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00126988
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  • 5
    Electronic Resource
    Electronic Resource
    Topological features of Cu15As34Se51 glassy semiconductor (1988)
    Springer
    Journal of materials science 7 (1988), S. 105-107 
    Details
    ISSN: 1573-4811
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01730585
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  • 6
    Electronic Resource
    Electronic Resource
    On the derivation of the constitutive equations of ideal plasticity (1969)
    Springer
    Acta mechanica 7 (1969), S. 248-251 
    Details
    ISSN: 1619-6937
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Description / Table of Contents: Zusammenfassung DieLèvy-Mises-Gleichungen für ein ideal plastisches Material wurden aus einer allgemeinen impliziten Beziehung zwischen dem Spannungstensor und dem Tensor der Deformations-geschwindigkeiten hergeleitet. Diese Herleitung bietet eine Alternative zu den üblichena priori Postulaten einer Fließbedingung und eines Fließgesetzes.
    Notes: Summary TheLèvy-Mises equations for an ideal plastic material are derived from a general implicit relation between the stress and rate of deformation tensors. This derivation provides an alternative to the usuala priori postulates of a yield criterion and flow rule.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01377526
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  • 7
    Electronic Resource
    Electronic Resource
    A multipolar approach to liquid helium II (1975)
    Springer
    Acta mechanica 21 (1975), S. 221-239 
    Details
    ISSN: 1619-6937
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Description / Table of Contents: Zusammenfassung Unter Verwendung der vonGreen andRivlin [1] angegebenen allgemeinen Theorie multipolarer Werkstoffe wird eine mögliche Alternative zu den Zweiphasentheorien von flüssigem Helium II diskutiert. Im speziellen wird die Existenz von Wellen mit zweiter Schallgeschwindigkeit, die in der, in stationärer wie auch in rotierender Flüssigkeit beobachteten Art abgemindert werden. Weiters wird eine mögliche Analogie des Konzepts einer gequantelten Wirbellinie vorgeschlagen.
    Notes: Summary Using the general framework of multipolar continuum mechanics as developed byGreen andRivlin [1], we discuss a possible alternative to the two-fluid theories of liquid helium II. We show in particular that our theory predicts the existence of second-sound waves which are attenuated in the manner obseved both in the stationary fluid and also in the rotating fluid. Moreover we suggest a possible continuum analogue of the concept of quantised vortex lines.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01181056
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  • 8
    Electronic Resource
    Electronic Resource
    Silica sonogels with drying control chemical additives (1991)
    Springer
    Journal of materials science 10 (1991), S. 1237-1242 
    Details
    ISSN: 1573-4811
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00720933
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  • 9
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    Structural and electrical properties of the glassy semiconductor system Cu-As-Te (1988)
    Springer
    Details
    Publication Date: 1988-04-01
    Print ISSN: 0022-2461
    Electronic ISSN: 1573-4803
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Published by Springer
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  • 10
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    The thermal stress system associated with a moving heat source (1964)
    Springer
    Details
    Publication Date: 1964-01-01
    Print ISSN: 1386-6184
    Electronic ISSN: 1573-1987
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Published by Springer
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