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Mikhail V. Golub, Ilya A. Moroz, Yanzheng Wang, Artur D. Khanazaryan, Kirill K. Kanishchev, Evgenia A. Okoneshnikova, Alisa N. Shpak, Semyon A. Mareev and Chuanzeng Zhang
A novel kind of acoustic metamaterials (AMMs) with unit cells composed of two layers made of dissimilar materials with a crack-like void situated at the interface between bars is considered. Recently, the authors showed numerically that this novel kind o...
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Nestor Shpak, Oleh Kuzmin, Zoriana Dvulit, Tetiana Onysenko and Wlodzimierz Sroka
The pace and scale of the digitalization of today?s global information society open up new opportunities for business. At the same time, they set new challenges for business owners and managers in the field of marketing. Given this fact, the purpose of t...
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O. A. Shpak
Pág. 230 - 235
The article is devoted to estimation of influence of separate factors on the summarizing index of operational efficiency of railway and suggestion of measures for the improvement of operating activities.
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Mesyats, G. A. Korovin, S. D. Rostov, V. V. Shpak, V. G. Yalandin, M. I.
Pág. 1166 - 1179
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