Zobrazeno 1 - 7
of 7
pro vyhledávání: '"Oleg A. Kovalchuk"'
Autor:
Viktor N. Orlov, Oleg A. Kovalchuk
Publikováno v:
Vestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, Vol 25, Iss 2, Pp 381-392 (2021)
The paper gives a solution to one of the problems of the analytical approximate method for one class first order nonlinear differential equations with moving singular points in the real domain. The considered equation in the general case is not solva
Externí odkaz:
https://doaj.org/article/5e053060a90043178fa056693288551a
Autor:
Vitaly Polyanichko, Oleg E. Kovalchuk, Ravil Salikhov, Anna Nikiforova, V. K. Garanin, Konstantin Garanin, Alexander Tolstov
Publikováno v:
Domestic geology. :48-67
The geological and tectonic settings of new primary low-grade diamond deposit, the Zarya pipe (Alakit-Markhinsky kimberlite field, Yakutian diamond province, Western Yakutia, Russia), are discussed. Data on the geological structure of the diatreme, m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2223f347065752d0ab1fdd20603dc6be
https://doi.org/10.47765/0869-7175-2020-10030
https://doi.org/10.47765/0869-7175-2020-10030
Publikováno v:
Vestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, Vol 25, Iss 2, Pp 381-392 (2021)
The paper gives a solution to one of the problems of the analytical approximate method for one class first order nonlinear differential equations with moving singular points in the real domain. The considered equation in the general case is not solva
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::885f445b3df6b53279ec783c100ffa28
https://doi.org/10.14498/vsgtu1843
https://doi.org/10.14498/vsgtu1843
Autor:
Oleg Nikolaevich Kovalchuk
Publikováno v:
THEORIA: педагогика, экономика, право. :29-35
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::58bf021e1713ef9bb13140bc6fe55b3c
https://doi.org/10.51635/27129926_2021_1_29
https://doi.org/10.51635/27129926_2021_1_29
Autor:
Vladimir Vladimirovich Nesterov, Boris Lvovich Belyakov, Oleg Nikolaevich Kovalchuk, Evgeny Valeryevich Smirnov
Publikováno v:
THEORIA: педагогика, экономика, право. :26-37
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::57d698fbfbfc09496f98fd8c8e04d124
https://doi.org/10.51635/27129926_2021_3_26
https://doi.org/10.51635/27129926_2021_3_26
Autor:
Roman A. Khmelnitsky, Oleg E. Kovalchuk, Yulia S. Gulina, Alena A. Nastulyavichus, Galina Y. Kriulina, Nikolay Y. Boldyrev, Sergey I. Kudryashov, Alexey O. Levchenko, Vladimir S. Shiryaev
Publikováno v:
Diamond and Related Materials. 128:109278
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6fb6bf8a141e6ddc7dd9fe1df3038980
https://doi.org/10.1016/j.diamond.2022.109278
https://doi.org/10.1016/j.diamond.2022.109278
Autor:
A. V. Tolstov, Konstantin Garanin, Shun'ichi Nakai, Oleg E. Kovalchuk, I.V. Serov, A.M. Agashev
Publikováno v:
Mineralogy and Petrology. 112:597-608
Here we present new data from a systematic Sr, Nd, O, C isotope and geochemical study of kimberlites of Devonian age Mirny field that are located in the southernmost part of the Siberian diamondiferous province. Major and trace element compositions o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0f851d360ace36f0b6665ca74a49546e
https://doi.org/10.1007/s00710-018-0617-4
https://doi.org/10.1007/s00710-018-0617-4