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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Fluid dynamics 23 (1988), S. 637-639 
    ISSN: 1573-8507
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract Fast and slow simple waves are studied in the framework of the anisotropic magnetohydrodynamics of Chew, Goldberger, and Low [1]. Baranov [2] has constructed fields of integral curves for fast and slow waves and in two special cases has shown that such waves break in the compression section. The possibility of breaking of a slow wave in a rarefaction section was noted by Akhiezer et al. [3]. However, their general relations in simple waves [3] have been shown to be incorrect [2, 4]. In the present paper the nature of the variation of the longitudinal and transverse plasma pressures is determined, and the problem of the breaking of fast and slow waves is completely solved. Conditions under which a slow wave breaks in a rarefaction section are found. A fast wave always breaks in a rarefaction section.
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Fluid dynamics 25 (1990), S. 959-962 
    ISSN: 1573-8507
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Fluid dynamics 26 (1991), S. 636-638 
    ISSN: 1573-8507
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Fluid dynamics 28 (1993), S. 277-280 
    ISSN: 1573-8507
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract Small perturbations of an unbounded volume of anisotropic collisionless plasma in a strong magnetic field are studied on the basis of MHD equations. It is assumed that there are present in the plasma ion heat fluxes connected with the third-order moments of the ion distribution function. The dispersion equation obtained, determining the velocity of five types of waves, is analyzed. In the space of the undisturbed plasma parameters the regions of values in which small perturbations are damped exponentially with time are found.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    Fluid dynamics 24 (1989), S. 625-628 
    ISSN: 1573-8507
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract The density variation in low-intensity shock waves propagated in an anisotropic rarefied plasma is studied on the basis of a system of relations in the Chew-Goldberger-Low magnetohydrodynamics (CGL MHD) approximation [1].
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  • 6
    Electronic Resource
    Electronic Resource
    Springer
    Journal of thermal analysis and calorimetry 31 (1986), S. 581-587 
    ISSN: 1572-8943
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Zusammenfassung Ergebnisse einer experimentellen Untersuchung der Kinetik der Freisetzung von C n H m , CH4, CO und H2 im Verlaufe der thermischen Zersetzung von Schiefern werden mitgeteilt. Die Versuche wurden mit einer komplexen, aus einem Derivatograph, einem Chromatograph und einem Spektrophotometer bestehenden Ausrüstung vorgenommen. Untersucht wurden Schiefer von verschiedenen, kommerziell abgebauten Lagerstätten. Obwohl sich die Schieferproben hinsichtlich der Lage und der Charakteristik des Vorkommens unterscheiden, verlaufen doch die Reaktionsgeschwindigkeitskurven für jedes Gas nahezu gleich.
    Abstract: Резюме Представлены резуль таты эксперименталь ного исследования кинети ки выхода С n Н m , СН4, СО, H2 при термическ ом разложении сланца. Опыты проводились на компл ексной экспериментальной у становке, состящей из дериватографа, хрома тографа и спектрофот ометра, с образцами сланца ра зличных фракций из ра зличных пластов основных про мышленных месторождений. Показ ано, что кривые скорос ти реакции для каждого газа близ ки друг к другу независимо от различ ий в местах отборов об разцов и их характеристиках.
    Notes: Abstract The results are presented of an experimental investigation of the kinetics of evolution of C n H m , CH4, CO and H2 in the course of shale thermal decomposition. The experiments were carried out with a complex experimental set-up consisting of a derivatograph, a chromatograph and a spectrophotometer, with shale samples of different fractions from different seams of basic commercial deposits. In spite of the differences in the sites of taking the samples and in their characteristics, the reaction rate curves for each gas are close to one another.
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  • 7
    Electronic Resource
    Electronic Resource
    Springer
    Journal of thermal analysis and calorimetry 31 (1986), S. 805-812 
    ISSN: 1572-8943
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Zusammenfassung Die Ergebnisse der Berechnung kinetischer Parameter, die die Freisetzung von C n H m , CH4, CO und H2 im Verlaufe der thermischen Zersetzung von Schiefern beschreiben, werden mitgeteilt. Die Berechnungen wurden nach der Methode von Allakhverdov und Nirsha ausgeführt. Die Mittelwerte der kinetischen Parameter wurden für jedes Gas bestimmt und mit den für Material aus Flözen verschiedener industriell ausgebeuteter Lagerstätten ermittelten Parametern verglichen. Es wird gezeigt, daß die Berechnung mit den experimentellen Werten gut übereinstimmende Ergebnisse liefert.
    Abstract: Резюме Представлены резуль таты расчетов кинетических параме тров, описывающих вых од C n H m , CH4, CO, H2 при термическо м разложении сланца. Расчеты проводились методом Аллахвердова-Нирша с учетом поведения сум мы квадратов отклонени й в пространстве кинетических параме тров. Для каждого газа определены средние кинетически е параметры на основе параметров, оп ределенных для разли чных пластов промышленны х месторождений. Показано, что результ аты хорошо согласуют ся с экспериментом.
    Notes: Abstract Kinetic parameters describing the evolution of C n H m , CH4, CO and H2 in the course of shale thermal decomposition were calculated by the Allakhverdov-Nirsha method allowing for sum of square difference behaviour in the kinetic parameters. The mean kinetic parameters were determined for each gas according to the parameters which were determined for the different seams of commercial deposits. The calculated results agreed well with the experiments.
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  • 8
    Electronic Resource
    Electronic Resource
    Springer
    Russian chemical bulletin 35 (1986), S. 236-236 
    ISSN: 1573-9171
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
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  • 9
    Publication Date: 1993-01-01
    Print ISSN: 0015-4628
    Electronic ISSN: 1573-8507
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Published by Springer
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  • 10
    Publication Date: 1992-01-01
    Print ISSN: 0015-4628
    Electronic ISSN: 1573-8507
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Published by Springer
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