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991.
The Digital European Cordless Telecommunications (DECT) draft standard, which is the only wireless local area network (LAN) standard close to the 1-Mb/s data rate is briefly described. Active standards groups and their activities are reviewed. The work of the IEEE working groups for wireless LANs is examined 相似文献
992.
V. A. Babenko 《Journal of Engineering Physics and Thermophysics》1992,63(6):1176-1182
Flow and heat transfer at mixed convection in the vertical channel connecting a cryogenic vessel and a room temperature zone are considered. The two-dimensional problem of conjugated heat transfer in the metal wall of the channel and in its cavity is solved by the finite difference method. The calculated values of the heat flux into the cold zone and of the temperature of the hot pipe end at different channel wall thicknesses, lengths, diameters, helium flowrates, as well as at different constants of the interaction of heat with the environment are given.A. V. Lykov Heat and Mass Transfer Institute, Academy of Sciences of Belarus, Minsk. Translated from Inzhenerno-fizicheskii Zhurnal, Vol. 63, No. 6, pp. 665–672, December, 1992. 相似文献
993.
This paper, dedicated to the memory of Grigorii Valentinovich Samsonov (15 February 1918 – 22 December 1975) [1, 2], corresponding member of the Ukrainian Academy of Sciences, gives a brief survey of the fruitful cooperation of this prominent researcher in materials science with the scientific community of the city of Novosibirsk. Results that have come from cooperation with G. V. Samsonov are unique indeed. They are related to the study of phase equilibria in boron-containing systems, mechanisms of interactions between boron and metals, and synthesis of high-melting borides (in particular, in the ultradisperse state). A vast amount of research has been focused on the development of coatings based on various modifications of boron nitride and related materials. 相似文献
994.
995.
P. G. Bannov G. E. Shumilova N. A. Voronina O. V. Yurkina T. F. Alekseenko 《Chemistry and Technology of Fuels and Oils》1992,28(3):178-179
Translated from Khimiya i Tekhnologiya Topliv i Masel, No. 3, pp. 34–35, March, 1992. 相似文献
996.
Announces the death in Tennessee of H. F. Wright, a pioneer in ecological psychology. Wright, using ideas generated by a research group, defined the units and categories by which both the behaviors of children and the facts of their situations could be analyzed. Wright and his staff developed both methods for comparing town and city children and theory to illuminate the environmental qualities involved. (PsycINFO Database Record (c) 2010 APA, all rights reserved) 相似文献
997.
V. M. Zasimenko 《Measurement Techniques》1992,35(4):467-471
Translated from Izmeritel'naya Tekhnika, No. 4, pp. 43–46, April, 1992. 相似文献
998.
A general enthalpy method for modeling solidification processes 总被引:5,自引:0,他引:5
In the present work, a general implicit source-based enthalpy method is presented for the analysis of solidification systems.
The proposed approach is both robust and efficient. The performance of the method is illustrated by application to a number
of problems taken from recent metallurgical literature. 相似文献
999.
G. A. Isaak'yan V. Ya. Alekseev A. I. Ivanov N. I. Karmalitsyn A. E. Kochin T. E. Sazonova S. V. Sepman I. F. Uchevatkin V. I. Fominykh 《Atomic Energy》1992,73(5):903-907
Mendeleev All-Union Metrology Research Institute. Translated from Atomnaya Énergiya, Vol. 73, No. 5, pp. 393–397, November 1992. 相似文献
1000.
I. R. Tatur D. A. Yakovlev I. A. Timokhin L. R. Berezovskii G. B. Prigul'skii V. A. Lazarev V. N. Sergeev 《Chemical and Petroleum Engineering》1992,28(10):623-627
Translated from Khimicheskoe i Neftyanoe Mashinostroenie, No. 10, pp. 29–31, October, 1992. 相似文献