Zobrazeno 1 - 10
of 9 266
pro vyhledávání: '"Vasilyeva IN"'
We consider image denoising using a nonlinear diffusion process, where we solve unsteady partial differential equations with nonlinear coefficients. The noised image is given as an initial condition, and nonlinear coefficients are used to preserve th
Externí odkaz:
http://arxiv.org/abs/2409.15952
Autor:
Vasilyeva, T. I.
Let $n$ be a natural number. A subgroup $H$ of a group $G$ will be called $n$-modularly embedded in $G$ if either $H$ is normal in $G$ or $H\not= \mathrm{Core}_{G}(H)$, $|G:H| =p$ and $|G/\mathrm{Core}_{G}(H)|=pq^{n}$, $q^{n}$ divides $p-1$ for some
Externí odkaz:
http://arxiv.org/abs/2406.04704
Autor:
Vasilyeva, Maria
In this paper, we consider a time-dependent discrete network model with highly varying connectivity. The approximation by time is performed using an implicit scheme. We propose the coarse scale approximation construction of network models based on th
Externí odkaz:
http://arxiv.org/abs/2404.16554
Autor:
Vasilyeva, Maria
In this work, we present an efficient way to decouple the multicontinuum problems. To construct decoupled schemes, we propose Implicit-Explicit time approximation in general form and study them for the fine-scale and coarse-scale space approximations
Externí odkaz:
http://arxiv.org/abs/2404.16576
Autor:
Logashenko, Dmitry, Litvinenko, Alexander, Tempone, Raul, Vasilyeva, Ekaterina, Wittum, Gabriel
Publikováno v:
Journal of Computational Physics, Volume 503, 2024, 112854
We investigate the applicability of the well-known multilevel Monte Carlo (MLMC) method to the class of density-driven flow problems, in particular the problem of salinisation of coastal aquifers. As a test case, we solve the uncertain Henry saltwate
Externí odkaz:
http://arxiv.org/abs/2403.17018
Autor:
V. S. Shabaev, V. A. Onoshko, A. S. Galushko, V. A. Mazurok, I. V. Orazmagomedova, L. G. Vasilyeva, D. A. Aleksandrova
Publikováno v:
Неотложная медицинская помощь, Vol 13, Iss 3, Pp 514-521 (2024)
RELEVANCE. We present the results of preclinical testing of an upgraded portable AR1 gas flow analyzer produced by JSC Krasnogvardeets (Saint Petersburg) in order to create import-substituting technologies and develop practical and scientific spher
Externí odkaz:
https://doaj.org/article/0e0c8ded5e5c445ab1eec1012eeec2df
Autor:
Olga Gennadievna Vasilyeva
Publikováno v:
Prostranstvennaâ Èkonomika, Vol 20, Iss 3, Pp 67-97 (2024)
Does capital structure matter for farms productivity? Do bank loans increase or decrease farms efficiency? To address this question, I use farm-level data for 2014–2020 from Amur region, which is one of the most typical Russian regions in terms of
Externí odkaz:
https://doaj.org/article/a5ce225cb5c841a88cd851ffb45d0ab9
Autor:
N. A. Vasilyeva, Sh. M. Abasov, A. A. Vladimirov, Yu. A. Dukhanin, K. A. Perevertin, M. Sh. Gaplaev, I. M. Bamatov
Publikováno v:
Бюллетень Почвенного института им. В.В. Докучаева, Vol 0, Iss 120, Pp 231-264 (2024)
The search for new technologies for effective regulation of yield and soil fertility is an urgent task. The use of slow-release fertilizers can simultaneously solve both problems – reducing fertilizer rates and increasing the mobilization of soil n
Externí odkaz:
https://doaj.org/article/5c572e426e1f49c4bd388a2adab5dbc0
Publikováno v:
Арктика и Север, Vol 56, Iss 56, Pp 42-63 (2024)
For the sustainable development of territories, it is important to pay special attention to transport infrastructure, which directly affects the level of efficiency and competitiveness of the state (region) economy and forms the creation of a rationa
Externí odkaz:
https://doaj.org/article/ded44db3d29748d7991a8aa6df368a80
Publikováno v:
International Journal for Quality Research, Vol 18, Iss 3, Pp 793-806 (2024)
The construction industry is characterized by the low level of digitalization in spite of the fact, that it has considerable potential. Digitalization in construction can bring significant results, connected with the improvement of the quality of pro
Externí odkaz:
https://doaj.org/article/1433594a297d44459134d02daebda555