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Filtration model of the unsteady suspension flow in a porous medium
Ch. 00097. P. 1–6.
Kuzmina L., Osipov Y.
The study of filtration of the suspension in a porous medium is a vital problem in the design and construction of tunnels and hydraulic structures. An exact solution is constructed for an unsteady flow of a monodisperse suspension in a homogeneous porous medium with size-exclusion mechanism for particle retention. The concentrations of suspended and precipitated particles are calculated in case of a linear blocking filtration coefficient.
In book
Vol. 117: RSP 2017 – XXVI R-S-P Seminar 2017 Theoretical Foundation of Civil Engineerin. , EDP Sciences, 2017.
Shehtman V. B., Gagarin A., , in: Graph Games and Logic Design. Recent Developments and Further Directions. (TREN, volume 66)Vol. 66.: Springer, 2026. Ch. 17 P. 419–450.
The chapter contains an overview of results on products of propositional modal logics and related constructions: semiproducts, Segerberg squares, and others. We focus mainly on axiomatizations, finite model property, and decidability; we also sketch connections with classical and modal predicate logics. In some cases we give ideas of proofs, especially of those using games. ...
Added: June 30, 2026
Springer, 2026.
This book presents established and new research on the close connections between graph games and systems of logic, particularly existing and newly designed modal logics. The volume utilizes two graph games – the sabotage game and the hide-and-seek game – to demonstrate the natural interplay between designing new graph games and exploring new kinds of ...
Added: June 30, 2026
Исаев М. Р., Bobrov P., Журнал высшей нервной деятельности им. И.П. Павлова 2022 Т. 72 № 5 С. 728–738
The paper proposes methods for brain–computer interface, based on the hemodynamic activity registration using near–infrared spectroscopy (NIRS) and adapted for using in the movement disorders rehabilitation. Methods include a filtration adapted to the instructions frequency, step by step classification of the rest state and active tasks, as well as training of the interface classifier on ...
Added: March 18, 2026
Latyshev A., В кн.: Государственное управление в СССР в годы Второй мировой войны. Фронт и тыл: Материалы XVII Международной научной конференции. Екатеринбург, 19–22 июня 2025 г.: М.: Издательство "Политическая энциклопедия", 2025. С. 490–498.
The article analyzes the institutional, organizational, and ideological aspects of the state's work with returning military personnel after the battles with Japan at Khalkhin Gol, the war with Finland, during and after the Great Patriotic War. The priorities of the state and state security agencies, the logic of the latter's work, are being clarified. The ...
Added: December 2, 2025
Kudinov A., Shapirovsky I., Studia Logica 2025 P. 1–25
We study the finite model property of subframe logics with expressible transitive
reflexive closure modality. For m > 0, let Lm be the logic defined by axiom ♦^{m+1}p →
♦p ∨ p. We construct quotient filtrations for the logics Lm, which implies that these logics
and their tense counterparts have the finite model property. Then, we construct selective
filtrations ...
Added: October 14, 2025
Сурова С. В., Furmanov K. K., Известия Дальневосточного федерального университета. Экономика и управление 2024 № 1 С. 80–90
We consider a simple exponential queueing system with a finite capacity and heterogeneous customers. Type I customers are patient, they join the queue if the system capacity allows it. Type II customers are impatient, so that they refuse to join the queue if the waiting time is too large (so-called wait-based balking). The system makes profit ...
Added: November 12, 2024
Гагарин А. А., , in: Advances in Modal Logic 2024. Short Papers.: [б.и.], 2024. P. 21–26.
We study products of unimodal logics characterized by classes of Kripke frames defined
by universal Horn formulas, classifying them with respect to the finite model
property (FMP). Further, we show that products of modal logics defined only with
variable-free axioms have the FMP. We also provide a partial result regarding products
of logics with both Horn and variable-free axioms. ...
Added: August 15, 2024
Campillo A., Delgado F., Sabir M. Gusein-Zade, Bulletin of the London Mathematical Society 2024 Vol. 56 No. 1 P. 449–459
There exist several equivalent equations for the Poincaré series of a collection of valuations on the ring of germs of functions on a complex analytic variety. We give definitions of the Poincaé series of a collection of valuations in the real setting (i.e., on the ring of germs of functions on a real analytic variety), ...
Added: December 5, 2023
V. Z. Grines, L. M. Lerman, Moscow Mathematical Journal 2023 Vol. 23 No. 4 P. 533–544
A class of gradient-like nonautonomous vector fields (NVFs) on a smooth closed manifold M is studied and the following problems are solved: 1) can a gradient-like NVF be constructed by means of the nonautonomous suspension over a diffeomorphism of this manifold, and if so, 1) under what conditions on the diffeomorphism? 2) let a diffeomorphism f be gradient-like (see ...
Added: November 7, 2023
Kuzmina L., Osipov Y., , in: The 7th International Technical Conference on Frontiers of Hydraulic and Civil Engineering Technology (HCET 2022). Volume 31.Vol. 31: of Advances in Transdisciplinary Engineering.: IOS Press, 2022. P. 40–48.
Added: October 31, 2023
Gushchin A. A., Zhunussova A., , in: Operator Theory and Harmonic Analysis* 2: Probability-Analytical Models, Methods and Applications.: Cham: Springer, 2021. P. 219–231.
Let M be a local martingale with respect to a so-called single jump
filtration F = F(г ,F ) generated by a random time г on a probability space
(Omega,F ,P). It was recently mentioned by Herdegen and Herrmann (2016) that M
is also a local martingale with respect to the filtration H = F^M that it generates
if ...
Added: December 25, 2022
Gushchin A. A., Modern Stochastics: Theory and Applications 2020 Vol. 7 No. 2 P. 135–156
We define a single jump filtration generated by a nonnegative random variable on a given probability space. We prove a simple characterization of local martingales on this filtered space. This result seems to be new even if the filtration is the smallest one with respect to which the generating random variable is a stopping time. As a ...
Added: July 20, 2020
Pochinka O., Shubin D., Applied Mathematics and Nonlinear Sciences 2020 Vol. 5 No. 2 P. 261–266
In the present paper we construct an example of 4-dimensional flows on $S^3\times S^1$ whose saddle periodic orbit has a wildly embedded 2-dimensional unstable manifold. We prove that such a property has every suspension under a non-trivial Pixton's diffeomorphism. Moreover we give a complete topological classification of these suspensions. ...
Added: October 14, 2019
Усмонов Б. Ш., Evsyutin O., Iskhakov A. et al., , in: 2017 International Conference on Information Science and Communications Technologies (ICISCT).: IEEE, 2017. P. 1–4.
The article deals with the current problem of ensuring security when developing embedded technologies for the Internet of things. The authors analyze modern technological features of this concept; consider the main vulnerabilities of information security. An approach is proposed to protect the data transferred between the physical, logical and virtual components of the dedicated Internet ...
Added: September 8, 2019
Ludmila I. Kuzmina, Osipov Y., Vetoshkin N., International Journal for Computational Civil and Structural Engineering 2018 Vol. 14 No. 1 P. 92–101
The filtration problem in a porous medium is an important part of underground hydromechanics. Filtration of suspensions and colloids determines the processes of strengthening the soil and creating waterproof walls in the ground while building the foundations of buildings and underground structures. It is assumed that the formation of a deposit is dominated by the ...
Added: July 1, 2018
L.I. Kuzmina, Osipov Y. V., Вестник Московского государственного строительного университета 2017 No. 11 P. 1278–1283
Subject: a groundwater filtration affects the strength and stability of underground and hydro-technical constructions. Research objectives: the study of one-dimensional problem of displacement of suspension by the flow of pure water in a porous medium. Materials and methods: when filtering a suspension some particles pass through the porous medium, and some of them are stuck ...
Added: January 6, 2018
Latyshev A., В кн.: Исторические документы и актуальные проблемы археографии, источниковедения, отечественной и всеобщей истории нового и новейшего времени. Сборник материалов Пятой международной конференции молодых ученых и специалистов «Clio-2015».: М.: Издательство "Политическая энциклопедия", 2015. С. 194–199.
This article is about a political departments in NKVDs filtration camps, it aims and everyday issues, an influence of a political work on a life of a whole camp, moods of forme POWs and they attitude. ...
Added: October 20, 2017
Latyshev A., В кн.: Материалы Международного молодежного научного форума "ЛОМОНОСОВ-2015".: М.: МАКС Пресс, 2015.
This article is about differen designations that NKVD's officers gave to inmates in filtration camps. It discusses the role ot these official and semiofficial designations in a stigmatization of former POWs. ...
Added: October 20, 2017
Latyshev A., В кн.: Исторические документы и актуальные проблемы археографии, источниковедения, российской и всеобщей истории нового и новейшего времени. Сборник материалов IV Международной конференции молодых ученых и специалистов «Клио–2014».: М.: РОССПЭН, 2014. С. 228–233.
This article is about staff issues in NKVD's filtration camps, sources of staff recruting. It is revealed that these camps were ruled by a bunch of a different organization, that made a lot of problems in a filtration work. ...
Added: October 20, 2017
Latyshev A., В кн.: Материалы Международного молодежного научного форума «ЛОМОНОСОВ-2013».: М.: МАКС Пресс, 2013.
This article is about filtration system of former soviet POWs, it evolution during the war ...
Added: October 20, 2017
Latyshev A., Живая история 2017 № 4 (22) С. 32–37
В статье кратко рассматривается государственная политика в СССР в отношении вернувшихся из плена в годы войны. Выясняется, что было в ней репрессивного, свидетельствующего о политическом недоверии власти к бывшим военнопленным, а что было объективным ответом на вызовы военного времени. ...
Added: October 14, 2017
Latyshev A., Вестник Московского университета. Серия 8: История 2017 № 1 С. 98–109
The article covers a staff and sources of its recruitment in special/checkup-filtration NKVD camps in the years of the Great Patriotic War. It gives data about conflicts between counter-intelligence services and camps administration for an employment of people from these camps. The author makes the assessment of an influence of the staff issue on the ...
Added: October 14, 2017