Search Results - "Kalugina, N. A."

Evolution of Cracks at the Edge of a Gas-Bearing Coal Seam under Stationary Mining by Feldman, E. P., Kalugina, N. A., Chesnokova, O. V.

“…In this paper, we consider the conditions under which the gas enclosed in a main crack located at the edge of a coal or rock formation can produce fracture of…”
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Role of unloading and filtration of gas in the development of main cracks in coal seams by Feldman, E. P., Kalugina, N. A., Meln’ik, T. N.

“…The development of main cracks in coal seams due to rapid unloading is analyzed using the methods of theoretical physics. A fracture criterion and a criterion…”
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Physical kinetics of coal-methane system: Mass transfer, pre-outburst events by Fel’dman, E. P., Vasilenko, T. A., Kalugina, N. A.

“…The article gives the review of the present-day development in the physical kinetics of coal-methane system. The Gibbs thermodynamic potential is derived for…”
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Methane accumulation in non-ventilated blind coal roadways by Fel’dman, E. P., Kirik, G. V., Stadnik, A. D., Spozhakin, A. I., Kalugina, N. A.

“…The authors propose a theoretical solution to the problem on the air displacement by methane in blind coal roadways when their ventilation is ceased…”
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The use of productive technologies of professional education as a means of developing critical thinking and forming the subject of future teachers by Kalugina, N.A., Dmitrochenko, T.V.

“…The article describes the actual problem of the development of critical thinking and the formation of the subjectivity of the future teacher in modern…”
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Phase transitions in the coal-water-methane system by A.D.Alexeev, E.V.Ulyanova, N.A.Kalugina, S.E.Degtyar

“…Low temperature phase transitions in water and methane occurring in fossil coals were studied experimentally using Nuclear Magnetic Resonance (NMR) techniques…”
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Electromagnetic compression forces of an arc ignited on a toroidal electrode and an electrode with two tips by Kalugina, N A, Dolotov, B I

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Thermodynamics of a gas-coal massif and a nonuniform gas distribution in a coal bed by Alekseev, A. D., Feldman, E. P., Kalugina, N. A.

“…The thermodynamic potential of a coal bed is calculated, and the gas pressure in the crack-pore system of the bed is shown to be nonuniformly distributed. This…”
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Diffusion-filtration model of methane escape from a coal seam by Alexeev, A. D., Vasilenko, T. A., Gumennik, K. V., Kalugina, N. A., Feldman, E. P.

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Electromagnetic compression forces of an arc ignited on a toroidal electrode and an electrode with two tips by KALUGINA, N. A, DOLOTOV, B. I

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