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Kateryna Kostyk, Ivan Kuric, Milan Saga, Viktoriia Kostyk, Vitalii Ivanov, Viktor Kovalov and Ivan Pavlenko
The relevant problem is searching for up-to-date methods to improve tools and machine parts? performance due to the hardening of surface layers. This article shows that, after the magnetic-pulse treatment of bearing steel Cr15, its surface microhardness ...
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Gifty Oppong Boakye, Laura E. Geambazu, Arna M. Ormsdottir, Baldur G. Gunnarsson, Ioana Csaki, Francesco Fanicchia, Danyil Kovalov and Sigrun N. Karlsdottir
Materials can be subjected to severe wear and corrosion due to high temperature, high pressure and mechanical loads when used in components for the production of geothermal power. In an effort to increase the lifetime of these components and thus decreas...
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Serhii Kovalov
Pág. 23 - 31
This paper describes the advantages of using gas motor fuels by vehicles, in particular liquefied petroleum gas, co MPared to conventional diesel fuel. The expediency of converting the diesel-based vehicles to gas internal combustion engines with sp...
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H. V. Miheev,E. A. Krugovova,R. V. Kovalov
Pág. 178 - 179
Some approaches and applications of railway vehicle and bridge interaction are presented. The results of computer simulation are considered.
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F. P. Shkarbets,A. I. Kovalov
Pág. 67 - 70
The variants of grounding the neutral wire of electric networks are considered and the recommendations are presented on increasing the level of operational reliability and electric safety of distribution networks with 6 kV voltage on the basis of limitat...
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V. V. Rybkin,M. I. Umanov,A. P. Taturevych,V. V. Tsyhanenko,N. V. Khalypova,V. V. Kovalov
Pág. 183 - 187
Results of experimental researches of electric locomotive ??3-001 on influence for a way to straight, curve radius of 400 and 600 m and also in limits ?????????? translations of mark 1/9 and 1/11 are given.
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M. I. Umanov,V. V. Kovalov,S. M. Sova
Pág. 101 - 105
The stresser-deformed estimation with the fastenings K??. The comparison of these parameters with the analogous ones for a track with fastenings K? have shown close enough conformity.
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