Zobrazeno 1 - 10
of 160
pro vyhledávání: '"A. A. Sheykin"'
The group-theoretic method for constructing symmetric isometric embeddings is used to describe all possible four-dimensional surfaces in flat $(1,9)$-dimensional space, whose induced metric is static and spherically symmetric. For such surfaces, we p
Externí odkaz:
http://arxiv.org/abs/2411.13135
Autor:
S. A. Paston, A. A. Sheykin
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 78, Iss 12, Pp 1-6 (2018)
Abstract It is well known that the recently proposed model of mimetic gravity can be presented as general relativity with an additional mimetic matter. We discuss a possibility to analogously reformulate the embedding theory, which is the geometrical
Externí odkaz:
https://doaj.org/article/92b9e2c6f77b41d69f97d9a58230f941
Technological lubricant for forming internal grooves in tubular products by cold plastic deformation
Publikováno v:
Технічна інженерія, Vol 1, Iss 93, Pp 89-95 (2024)
The paper presents the results of research on the creation of an effective liquid technological lubricant for the processing of structural alloy steel parts by the method of deformation drawing (DP) based on the determination of the effect of the int
Externí odkaz:
https://doaj.org/article/e7c9627c5e4043f9b51fa91f0405a937
Publikováno v:
Технічна інженерія, Vol 1, Iss 93, Pp 96-104 (2024)
The work is devoted to the study of the formation of stress concentrators on the inner surfaces of "tube"-type parts, the main function of which is to ensure the minimum consumption of fracture energy under the influence of tensile loads. The work sh
Externí odkaz:
https://doaj.org/article/0bc091309e804c74b922f25808e14035
Autor:
Tkachuk, O.V., Sheykin, S.E., Lavrys, S.M., Rostotskii, I. Yu, Danyliak, M.-O.M., Pohrelyuk, I.M., Proskurnyak, R.V.
Publikováno v:
In Vacuum December 2024 230
Autor:
Minor, M.A., Sheykin, S.D., Stolbov, V.A., Ermilov, S.G., Joharchi, O., Afonin, A.S., Shvartseva, O.S., Tolstikov, A.V.
Publikováno v:
In Applied Soil Ecology November 2024 203
Water mites (Acariformes: Hydrachnidia, Halacaroidea) of the Visimsky Nature Reserve (Central Urals)
Publikováno v:
Acta Biologica Sibirica, Vol 10, Pp 235–248-235–248 (2024)
Water mites of the Urals have been poorly studied. In 2019–2020, we studied water mites from the water bodies of the Visimsky State Nature Biosphere Reserve and its surroundings, as well as from the territory of the Chusovaya River Nature Park. Dif
Externí odkaz:
https://doaj.org/article/f8c699b62c974463b476b9775f7d56de
Autor:
Shliakhetka, Khrystyna, Pohrelyuk, Iryna, Sheykin, Serhii, Lavrys, Serhii, Balog, Martin, Kamyshnykova, Kateryna
Publikováno v:
In Surface & Coatings Technology 30 April 2024 482
Publikováno v:
Symmetry 2020, 12(5), 722
We consider the approach to gravity in which four-dimensional curved spacetime is represented by a surface in a flat Minkowski space of higher dimension. After a short overview of the ideas and results of such an approach we concentrate on the study
Externí odkaz:
http://arxiv.org/abs/2004.04481
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