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61.
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V. A. Labutin L. G. Golubev R. G. Safin V. P. Andrianov 《Journal of Engineering Physics and Thermophysics》1983,45(2):911-914
The article examines nonsteady heat and mass transfer in the process of drying by reduced pressure, on the assumption that the moisture is situated on the surface of an infinite plate.Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 45, No. 2, pp. 272–275, August, 1983. 相似文献
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M. S. Tagirov E. M. Alakshin Yu. M. Bunkov R. R. Gazizulin A. M. Gazizulina L. I. Isaenko A. V. Klochkov T. R. Safin K. R. Safiullin S. A. Zhurkov 《Journal of Low Temperature Physics》2014,175(1-2):167-176
From atomic physics one knows the phenomenon of Bose–Einstein condensation (BEC), where a macroscopic ensemble of particles occupy coherently a single state. Similar phenomena were observed for different types of quasiparticles in condensed matter. Here we present the results of investigations on the BEC of elementary magnetic excitations—magnons—in antiferromagnets with a dynamical frequency shift. 相似文献
65.
V. A. Lashkov E. I. Levashko R. G. Safin 《Journal of Engineering Physics and Thermophysics》2001,74(1):112-118
A mathematical model of heat and mass transfer in wood chips subjected to hydrothermal treatment in a saturatedsteam medium for constant parameters of the external medium is developed. Filling of capillaries with a liquid moving with a finite velocity is responsible for the presence of different zones in which condensate transfer is determined by the corresponding mechanisms. 相似文献
66.
R. G. Safin V. A. Lashkov L. G. Golubev R. R. Safin 《Journal of Engineering Physics and Thermophysics》2002,75(2):384-389
A mathematical model of heat and mass transfer in vacuumoscillating drying of lumber in which the drying process is made up of alternating stages of warming up and vacuum treatment has been developed. At the stage of warming up, it has been proposed to use a superheated steam to intensify heat and masstransfer processes and to relax stresses occurring at the stage of vacuum treatment. 相似文献
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Translated from Izmeritel'naya Tekhnika, No. 2, pp. 31–32, February, 1990. 相似文献
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The influence of the technical condition of bearings on the efficiency of induction motors (IMs) with a squirrel-cage rotor was considered. The experiments were carried out using induction-motor tests in the rated nominal regime with one operable bearing and two faulty ones, which had defects of the outer and inner parts. The bearing defects increase the energy loss, which leads to increased heat dissipation in the contact zone of its components, overheating, and reduction of motor efficiency. More accurate data on changing the efficiency of IMs with faulty bearings taking into account the heated state of the machine that is close to actual operating conditions were obtained. Thermal-imaging inspection of motor was performed, the graphic data characterizing the changes of temperatures of units and the machine efficiency when operating with a faulty bearing are presented. A diagnostic technique of the bearing condition by means of integral parameters of vibration acceleration that makes it possible to analyze the potential defects taking into account the weak level of their activation and the shift over the frequency response is considered. 相似文献