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1.
We present a complex of mathematical models that formalize gas recovery and processing. Optimization problems for gas recovery and gas condensate processing are stated and corresponding solution algorithms are suggested. These mathematical models provide a foundation of interactive decision support systems used in gas recovery and gas condensate processing. 相似文献
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Yurii G. Tkachenko Viktor F. Britun Emmanuil V. Prilutskii Dzhemma Z. Yurchenko Galina A. Bovkun 《Powder Metallurgy and Metal Ceramics》2005,44(3-4):196-201
We have investigated how the composition, grain morphology, and method of preparing the starting mixture affect the processes that form the structure and phase composition of B4C - SiC composites during hot pressing. We found that, depending on the composition of the initial powder mixtures, which is responsible for different mechanisms of consolidation of ceramic materials during hot pressing, the grain size of the main B4C phase and its defect content as well as the nature of the SiC phase distribution within the material differ significantly. When B4C - SiC composites with a low SiC content are made from initial B4C - B4Si - B - C powder mixtures those composites have a high cracking resistance because of their fine grain structure.__________Translated from Poroshkovaya Metallurgiya, Nos. 3–4(442), pp. 112–119, March–April, 2005. 相似文献
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T. Ya. Kosolapova G. N. Makarenko T. I. Serebryakova É. V. Prilutskii O. T. Khorpyakov O. I. Chernysheva 《Powder Metallurgy and Metal Ceramics》1971,10(1):22-26
Conclusions A study was made of the preparation of boron carbonitride by various techniques. It is shown that the method of synthesis from simple substances, involving nitriding boron and carbon black in a nitrogen atmosphere at temperatures of 1800–2000°C, yields a product corresponding, according to chemical analysis, to the composition BNC. Standard powder metallurgy techniques appear to be unsuitable for the production of massive boron carbonitride specimens.Translated from Poroshkovaya Metallurgiya, No. 1 (97), pp. 27–33, January, 1971. 相似文献
5.
L. G. Afraimovich M. Kh. Prilutskii 《Journal of Computer and Systems Sciences International》2008,47(2):214-220
A problem of finding multicommodity minimum-cost flows in tree-like networks is considered. To solve this problem, an algorithm based on the reduction to a problem of finding a single-commodity flow in a network of arbitrary structure is proposed. For single-commodity flows in tree-like networks, an algorithm using a procedure of border reduction is used. 相似文献
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S. M. Krylov R. M. Bogomolov V. A. Prilutskii 《Chemical and Petroleum Engineering》2007,43(1-2):65-67
An essentially new method has been developed for installing the blank for a lap in a drilling bit for mechanical machining,
which provides guaranteed gaps between the two holes with flat bottoms and the outer cylindrical surfaces of the corresponding
fingers. The new method of installing the lap for machining greatly reduces the tolerances for the end and radial slack in
the drilling bit and improves the working characteristics.
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Translated from Khimicheskoe i Neftegazovoe Mashinostroenie, No. 1, pp. 46–47, January, 2007. 相似文献
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S. I. Drapak V. V. Netyaga Yu. I. Prilutskii M. O. Vorobets Z. D. Kovalyuk 《Technical Physics Letters》2005,31(9):772-774
The list of materials that can be used in photosensitive structures has been expanded to include mumie—an organic compound
of a biological nature. The current-voltage, capacitance-voltage, and photoelectrical characteristics of n-InSe-mumie heterostructures have been studied. The spectrum of the relative quantum efficiency of these heterostructures
exhibits a correlation with the optical absorption spectrum of mumie films deposited from ethanol solutions. 相似文献