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排序方式: 共有442条查询结果,搜索用时 78 毫秒
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Combustion, Explosion, and Shock Waves - Results of a numerical study of mixing, ignition, and combustion of a cold hydrogen jet propagating along the lower wall of a channel parallel to a... 相似文献
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Yu. F. Patrakov E. S. Pavlusha N. I. Fedorova Yu. A. Strizhakova 《Solid Fuel Chemistry》2008,42(1):10-13
The results of the thermal solution of oil shale in benzene in a flow unit under supercritical conditions are reported. It was found that the conversion of shale organic matter into liquid products increased by a factor of 2.5 with an increase in the solvent pressure from 5 to 15 MPa. 相似文献
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The authors assessed the method for life-time study of the biomechanical characteristics of ocular tissues in 281 children (562 eyes) aged 7 to 14 years. The method for assessing the biomechanics of the eyelids is described. In detail. The rates of propagation of acoustic waves in normal tissue and in 1.0 to 6.0 diopters myopia are presented. A correlation has been revealed between the increase of the velocity of acoustic surface waves, propagating in the horizontal direction in the internal segment of the orbital area of the upper eyelids, and the value of clinical refraction in myopia. The authors consider clinical signs of myopia-screwing up one's eyes and a wider lid slit-from a biomechanical viewpoint. 相似文献
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Metal Science and Heat Treatment - 相似文献
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V. T. Troshchenko P. V. Yasnii V. V. Pokrovskii B. T. Timofeev V. A. Fedorova 《Strength of Materials》1988,20(12):1552-1558
1. | Prestraining has an ambiguous effects on the FCG rate in steels 15Kh1MFA (I) and 15Kh2MFA (II). With increase in prestraining there is a decrease in the FCG rate in the threshold region of the KDFF of steel 15Kh2MFA (I) and also in the middle section for steel 15Kh2MFA (II). However, in the threshold region of the KDFF of steel 15Kh2MFA (II) FCG increases. |
2. | An increase in the level of prestraining for steels 15Kh2MFA (I) and 15Kh2MFA (II) leads to an increase of the SIF during opening of the crack. Due to this, the KDFF of these steels when plotted in the coordinates log V–log Keff is invariant relative to the degree of prestraining. |
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V. N. Rubchevskiy A. S. Gaidaenko Yu. A. Chernyshov A. V. Podlubnyy G. M. Tkalich A. A. Zhuravsky E. I. Toryanik S. V. Fedorova O. V. Sinyaeva 《Coke and Chemistry》2014,57(4):177-181
Experiment design is classically used in mathematical modeling of technological processes. To that end, experiments are conducted according to a matrix with strict ranking of the data. That approach is poorly suited to objects in which the input parameters vary arbitrarily, such as operational industrial enterprises. Accordingly, a new method has been developed for the analysis of data from a passive experiment; the method is incorporated in a computer program. 相似文献
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The results of a study of the chemical composition and technological properties of coals from the Khar Tarvagatai, Nuurst Khotgor, and Khushuut deposits are presented in this article. 相似文献
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