Zobrazeno 1 - 10
of 22
pro vyhledávání: '"A. D. Pershin"'
Publikováno v:
Gornyi Zhurnal. :56-59
After analyzing the technology of natural stone mining in Russia in comparison with European countries, we conclude that one of the ways to increase the efficiency of the mining transport equipment system in natural stone quarries is to use wheel loa
Publikováno v:
Electronic engineering Series 2 Semiconductor devices. 258:4-21
Lateral instability is inherent in power transistors structures, consisting of several simple transistors connected in parallel. The large number of transistor elements complicates the analysis of such instability. The introduction of suppressing res
Autor:
GZ Pulsar Jsc, D. G. Drozdov, B.L. Guskov, L.A. Seidman, Production Enterprise \\'Pulsar\\', Production Enterprise, A. D. Pershin, E.M. Savchenko, Scientific, Pulsar
Publikováno v:
Electronic Enginering.Semiconductor Devices. 253:53-63
Publikováno v:
Vestnik of Nosov Magnitogorsk State Technical University. 15:73-80
Publikováno v:
IOP Conference Series: Earth and Environmental Science. 666:052097
Research objective is improvement of engineering methods for calculating the main indicators and parameters of the process of cutting rocks with a carbide tool. The sawing coefficient is defined as the ratio of the total forces that arise during the
Autor:
M. S. Ulyakov, G. D. Pershin
Publikováno v:
Journal of Mining Science. 51:330-334
It is suggested to enhance output of marketable dimension stone in quarries with complex inclined and flat-lying fracture networks by minimizing in-process loss as well as by optimizing cutting bench height in order to benefit from higher production
Publikováno v:
Journal of Mining Science. 51:129-137
The authors prove feasibility and efficiency of high-strength stone wire saw cutting in rock mass with subvertical and low-angle joints as well as drilling-and-wedge cutting of stone into marketable size blocks on the working site. The article presen
Autor:
G. D. Pershin, M. S. Ulyakov
Publikováno v:
Journal of Mining Science. 50:310-318
Relations of the main characteristics of cutting (capacity, energy consumption and diamond tool wear) and the wire saw mode are presented for various heights of a cutting bench. The authors develop the wire saw control mode selection procedure accoun
Publikováno v:
Russian Physics Journal. 40:519-524
A general method is proposed for the construction of a gauge-invariant canonical quantum formulation for the gauge-invariant classical theory that depends on the set of parameters. The conditions for closure of the algebra of operators, which generat
Publikováno v:
Theoretical and Mathematical Physics. 108:1083-1092
We consider the anomaly problem in the generalized canonical quantization of a bosonic string interacting with background graviton and antisymmetric tensor fields. We derive an equation for the symbol of the anomaly operator, find a solution to that