Zobrazeno 1 - 10
of 29
pro vyhledávání: '"Roman Andreev"'
Autor:
Roman Andreev, Irina Animitsa
Publikováno v:
Applied Sciences, Vol 13, Iss 6, p 3978 (2023)
The development of solid oxide fuel cells operating at medium temperatures (500–700 °C and even lower) requires the search for proton conductors based on complex oxides that would have a wide range of required properties. This task stimulates the
Externí odkaz:
https://doaj.org/article/1c8e5ccd2ad94a96b1c291504f1cdfd7
Publikováno v:
Materials; Volume 15; Issue 11; Pages: 3944
Materials
Materials
The hexagonal perovskite Ba5 In2Al2ZrO13 and In3+-doped phase Ba5 In2.1Al2Zr0.9O12.95 were prepared by the solid-state synthesis method. The introduction of indium in the Zr-sublattice was accompanied by an increase in the unit cell parameters: a = 5
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::85b2390968f0775007470cc9f81b65c0
Autor:
V.A. Malkhasyan, Tukhtasin Makhmudov, Dmitry Pushkar, Roman Andreev, Yuri Kim, Sergey Sukhikh
Publikováno v:
Journal of Urology. 206
INTRODUCTION AND OBJECTIVE:In a pandemic of a new coronavirus infection (COVID-19), most clinical centres in Moscow have been reorganized for the treatment of covid patients. In this abstract, we r...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cf33d6e8b5af04bc8b263799152e41cb
https://doi.org/10.1097/ju.0000000000002028.02
https://doi.org/10.1097/ju.0000000000002028.02
Publikováno v:
Vestnik of Kazan State Agrarian University. 14:88-94
The stability of the values of cyclic feeds and the angle of the actual beginning of the fuel supply largely depends on the presence of the injection valve of the fuel pump section and its design features. The valve must reliably separate the dischar
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6ad15daaefc6a3cd42bc32e44828c579
https://doi.org/10.12737/article_5d3e16a9e13528.77117651
https://doi.org/10.12737/article_5d3e16a9e13528.77117651
Autor:
Medvedev Vladimir I, Roman Andreev, Nikolay Pushkarenko, Aleksandr Vasil'ev, Nikolay Kuznecov, Petr Zaycev
Publikováno v:
Vestnik of Kazan State Agrarian University. 13:114-118
At present, in many regions of the Russian Federation, post-harvest processing of grain is carried out directly on the farms themselves. Produced grain is mainly used for fodder and seed purposes. This is predetermined by difficult weather conditions
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5858b471facc9980065a5f98893fe9d7
https://doi.org/10.12737/article_5c3de39977c439.48919234
https://doi.org/10.12737/article_5c3de39977c439.48919234
Publikováno v:
Vestnik of Kazan State Agrarian University. 13:5-9
The article describes the experiments on the drying of hops in laboratory conditions in rack-type dryers with electric heating, which, according to the results of tests, will allow to obtain samples of dry hops, comparable in quality to those obtaine
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f6b91f50ede66b794593feac7c53682d
https://doi.org/10.12737/article_5c3ddad4bc54c7.55579258
https://doi.org/10.12737/article_5c3ddad4bc54c7.55579258
Autor:
Yuriy Kazakov, Petr Smirnov, Gubeydulla Yunusov, Aleksandr Vasil'ev, Roman Andreev, Nikolay Pushkarenko, Aleksandr Akimov
Publikováno v:
Vestnik of Kazan State Agrarian University. 13:131-137
Based on experimental studies, a technique was proposed for comparing the areas of compaction by tractor propulsors in field conditions and in the aisle interval, the zones of inefficient and intensive use of the hopper space were determined and the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4e53f9d9847f27693da0d375c1fc1caa
https://doi.org/10.12737/article_5b3509dd843138.86764768
https://doi.org/10.12737/article_5b3509dd843138.86764768
Publikováno v:
Numerical Functional Analysis and Optimization. 36:549-566
In recent years, a series of convergence rates conditions for regularization methods has been developed. Mainly, the motivations for developing novel conditions came from the desire to carry over convergence rates results from the Hilbert space setti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f3a6d08b66d3f62acf8c177d9261abd3
https://doi.org/10.1080/01630563.2015.1021422
https://doi.org/10.1080/01630563.2015.1021422
Autor:
Roman Andreev
Publikováno v:
Calcolo. 53:19-34
We construct space-time Petrov---Galerkin discretizations of the heat equation on an unbounded temporal interval, either right-unbounded or left-unbounded. The discrete trial and test spaces are defined using Laguerre polynomials in time and are show
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f5943d6891199a7f642a5203bc64e2b2
https://doi.org/10.1007/s10092-014-0133-9
https://doi.org/10.1007/s10092-014-0133-9
Autor:
Roman Andreev
We discuss the application of the augmented Lagrangian method to the convex optimization problem of instationary variational mean field games with diffusion. The problem is first discretized with space-time tensor product piecewise polynomial bases.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ac32772088bb500e2963ce9cfbf69b9e
https://hal.science/hal-01301282v2/file/ALG2MFG_HAL_20170501.pdf
https://hal.science/hal-01301282v2/file/ALG2MFG_HAL_20170501.pdf
