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M/D^{[y]}/1 Periodically Gated Vacation Model and Its Application to IEEE 802.16 Network
In this paper we consider the analysis of an M/D[y] /1 vacation queue with periodically gated discipline. The motivation of introducing the new periodically gated discipline lies in modeling a kind of contention-based bandwidth reservation mechanism applied in wireless networks. The analysis approach applied here consists of two steps and it is based on appropriately chosen characteristic epochs of the system. We provide approximate expressions for the probability-generating function of the number of customers at arbitrary epoch as well as for the Laplace–Stieljes transform and for the mean of the steady-state waiting time. Several numerical examples are also provided. In the second part of the paper we discuss how to apply the periodically gated vacation model to the non real-time uplink traffic in IEEE 802.16-based wireless broadband networks.
Samsonova E. S., Zheltukhin V. S., Shemakhin A.Y, et al., High Energy Chemistry 2024 Vol. 58 No. Suppl. 3 P. S393–S399
A two-dimensional axisymmetric plasma model of a radio frequency induction discharge of low pressure (13–133 Pa) with gas blowing is presented. The model includes the Navier−Stokes equations, the continuity equations for ions, electrons, and metastable atoms, the equations for the conservation of energy of electrons and atoms in the ground state, and the Maxwell equations ...
Added: February 26, 2026
Abdullin I. S., Zheltukhin V. S., A. Yu. Shemakhin, Journal of Engineering Physics and Thermophysics 2024 Vol. 97 No. 2 P. 480–493
A self-consistent end-to-end model defining a radio-frequency inductive jet discharge of lowered pressure (13.3–133 Pa) in an undisturbed gas flow and in the presence of a solid body has been proposed. The model comprises three interrelated submodels defining the parts of such a discharge, participating in its interaction with the material treated: the plasma jet, ...
Added: February 26, 2026
Урюпин И. В., Sukharev A., Vlasenko A., Информационные технологии и вычислительные системы 2023 № 3 С. 79–92
Transportation systems including air transportation play one of the most important roles in the economic and social development of any country. The effectiveness of the quality of control of such complex systems can be assessed according to various criteria, from the cost of developing infrastructure to the degree of satisfaction of the population with transport. ...
Added: February 24, 2026
Урюпин И. В., Vlasenko A., Экономика и математические методы 2024 Т. 60 № 2 С. 92–104
At present, in an unstable geopolitical situation, one of the most important tasks for the Russian Federation is the creation of advanced domestic aircraft that will not be inferior to its foreign counterparts. The cost of operating is the main criterion in the design of a new aircraft to ensure competitiveness in air transport systems. ...
Added: February 24, 2026
Урюпин И. В., Vlasenko A., Sukharev A., Экономика и математические методы 2025 Т. 61 № 4 С. 73–85
At present development of advanced civil aircraft is one of the key priorities in Russia. To become commercially successful advanced civil aircraft should provide competitive lifecycle costs. Accordingly, it requires balancing operational expenses and consumer-acceptable pricing during an aircraft design phase. However, price evaluation of a prospective aircraft with the analog method or the income ...
Added: February 24, 2026
Akaev A., Давыдова О. И., Korotayev A., Философия и общество 2025 № 4(117) С. 5–46
This article presents a comprehensive macroeconomic analysis of countries grouped into civilizational clusters based on a cultural-historical approach. The object of the study is the macroeconomic dynamics of states in the context of civilizational differences, and the subject is the model-based assessment and forecast of GDP growth rates for the period up to 2050. The ...
Added: February 24, 2026
Nizomutdinov B., Olga G. Filatova, , in: Proceedings of the 2025 Communication Strategies in Digital Society Seminar (2025 ComSDS), 9 April 2025.: IEEE, 2025. P. 248–253.
The modern development of urban digital services greatly simplifies the interaction of citizens and authorities, making it urgent to find new approaches to analyze their effectiveness. The study examined user reviews of the Unified Map of St. Petersburg mobile application as a data source for evaluating the social effectiveness of electronic services. The main hypothesis ...
Added: January 13, 2026
A. V. Titova, S. D. Korolkov, V. V. Izmodenov, Lobachevskii Journal of Mathematics 2025 Vol. 46 No. 9 P. 4526–4533
The stability of the heliopause, the tangential discontinuity separating the solar wind from the interstellar medium, is influenced by various processes, including the Kelvin–Helmholtz instability. This study investigates the role of charge exchange collisions between protons and hydrogen (H) atoms in reduction of the Kelvin–Helmholtz growth rate at the heliopause. Using a two-dimensional gasdynamic model ...
Added: January 12, 2026
Storchevoy M., Mylnikov L., Чернышев В. В. et al., / SSRN. Серия "Working Papers". 2025.
Внимание к охране природы принимает все большую значимость для бизнеса с одной стороны в связи с ужесточением в природоохранном законодательстве, а с другой в связи с использованием ESG рейтингов при принятии решений о коммерческой деятельности компаний. Составление рейтинга LLM систем, способных оказывать консультационные услуги в области природоохраны и ESG, позволяет осуществить выбор такой системы для ...
Added: September 18, 2025
Смирнов И. А., Koucheryavy E., В кн.: СБОРНИК МАТЕРИАЛОВ XI МЕЖДУНАРОДНОЙ НАУЧНО-ПРАКТИЧЕСКОЙ КОНФЕРЕНЦИИ «Актуальные аспекты развития науки и общества в эпоху цифровой трансформации» (шифр –МКАА) 6 ноября 2023 года.: М.: ООО "Издательство АЛЕФ", 2023.
In this paper from the point of view of information security (hereinafter IS) the document "FG NET-2030 Technical Specification on Network 2030 Architecture Framework" (hereinafter Technical Specification) released by the International Telecommunication Union (hereinafter ITU) in 2020 is considered. The developed Technical Specification describes architectural principles for 6G public networks, such as: access, routing and ...
Added: September 7, 2025
Смирнов И. А., В кн.: Сборник научных трудов по материалам XX Международной научно-практической конференции «УСТОЙЧИВОЕ РАЗВИТИЕ ОБЩЕСТВА: НОВЫЕ НАУЧНЫЕ ПОДХОДЫ И ИССЛЕДОВАНИЯ» (шифр – МУРО) от 08.07.2025.: М.: [б.и.], 2025. С. 105–113.
The study is devoted to assessing the effectiveness of measures to reduce cyber risks in 5G networks. The key vulnerabilities and threats arising from the development of artificial intelligence technologies, big data analysis, the Internet of Things and robotics are considered. The architecture of 5G networks is analyzed, the main cybersecurity threats are identified and ...
Added: September 7, 2025
Sokolov B., / Series OSF "SocArXiv". 2025.
This paper reviews various estimands used in modern scientific and applied research to operationalize causal inquiries within the Rubin Causal Model framework. I first introduce the most widely utilized average treatment effects, such as ATE, ATT, and ATC. I then describe their popular extensions, including those targeting local and conditional treatment effects; causal interactions and mediation; effects ...
Added: May 6, 2025
Ivan A. Smirnov, Koucheryavy E., Elektrotehniski Vestnik/Electrotechnical Review 2025 Vol. 92 No. 3 P. 104–114
Abstract. The 5G communication networks have been destined to become one of the pillars of the digital economy, driven by artificial intelligence (AI), machine learning (ML), Big Data, Internet of Things (IoT) and robotization. The 5G networks have inherited many vulnerabilities from the preceding systems. In this regard, the issue of a proper information security ...
Added: April 28, 2025
Ovanesova Y., Moshiashvili M. M., Типсина Н. О., / Series "Working Papers". 2021.
The purpose of this article is to analyze and evaluate the cultural characteristics of the digital ecosystem product teams leaders and operational efficiency. Using binary choice models (the main conclusions were made on the basis of logit regressions), has been found a significant negative relationship between the probability of achieving business goals by a team ...
Added: February 17, 2025
Mirkin B., Parinov A., Halynchyk M. et al., / Series WP7 "Математические методы анализа решений в экономике, бизнесе и политике". 2024.
Recently, k-means clustering has been extended to the so-called interval data. In contrast to conventional data case, the interval data feature values are intervals rather than single reals. This paper further explores the least-squares criterion for k-means clustering to tackle the issue of initialization, that is, finding a proper set of initial cluster centers at ...
Added: November 26, 2024
Болдырев К. А., Glushak A., Pisarev V. et al., Радиоактивные отходы 2024 № 3 С. 83–95
This article overviews global and Russian atomistic modelling experience in exploring the properties of clay and cement-based materials for the long-term safety assessment of high-level waste (HLW) repositories. It explains the general concept of molecular dynamics simulation providing some case studies solved based on it. It discusses the accuracy of the calculated parameters and coefficients, ...
Added: September 30, 2024
Alexandrov A. E., S. P. Borisov, Bunina L. V. et al., Российский технологический журнал 2023 Vol. 11 No. 3 P. 56–69
Objectives. The wear monitoring of metal structural elements of power plants-in particular, pipelines of nuclear power plants-is an essential means of ensuring safety during their operation. Monitoring the state of the pipeline by direct inspection requires a considerable amount of labor, as well as, in some cases, the suspension of power plant operation. In order ...
Added: March 21, 2024
IEEE, 2022.
This collection of scientific papers contains articles written based on reports given at the conference "4th International Conference on Control Systems, Mathematical Modeling, Automation and Energy Efficiency (SUMMA)". This conference took place in Lipetsk (Russia) on November 9-11, 2022.
The articles cover a wide range of topics corresponding to the following topics:
I. Industrial Applied Mathematics and ...
Added: February 15, 2024
IEEE, 2023.
Added: February 14, 2024
Урюпин И. В., Sukharev A., Власенко А. О., Информационные технологии и вычислительные системы 2023 № 3 С. 79–92
Transportation systems including air transportation play one of the most important roles in the economic and social development of any country. The effectiveness of the quality of control of such complex systems can be assessed according to various criteria, from the cost of developing infrastructure to the degree of satisfaction of the population with transport. ...
Added: January 12, 2024
Springer, 2023.
This volume gathers together selected peer-reviewed works presented at the BIOMAT 2022 International Symposium, which was virtually held on November 7-11, 2022, with an organization staff based in Rio de Janeiro, Brazil.
Topics touched on in this volume include infection spread in a population described by an agent-based approach; the study of gene essentiality via network-based ...
Added: November 7, 2023
Akaev A., Malkov S., Bilyuga S. et al., , in: Reconsidering the Limits to Growth. A Report to the Russian Association of the Club of Rome.: Springer, 2023. P. 253–307.
Akaev et al. outline their methodological approach to mathematical modeling of social self-organization and historical dynamics, which is used in the study of processes occurring in the world and in forecasting further world development. They describe basic equations (in the demographic, ecological, economic, technological, social, and political spheres) and the order of their use in ...
Added: October 5, 2023
Sadovnichy V., Akaev A., Ilyin I. et al., , in: Reconsidering the Limits to Growth. A Report to the Russian Association of the Club of Rome.: Springer, 2023. P. 241–251.
Sadovnichy et al. present this chapter as an introductory one to the Mathematical Part which consists of nine chapters, including the present one. In the present chapter, Sadovnichy et al. explain the design of the Mathematical Part, which mathematical apparatus is used, how the chapters and conclusions of this part are connected with those in ...
Added: October 5, 2023
Dunas D., Vartanov S., Journal of Multicultural Discourses 2020 Vol. 15 No. 2 P. 186–203
Digital media is now the dominant influence of peoples’ everyday lives and social behavior in the global culture of twenty-first century society. Contemporary media usage is associated with the need for affection and involvement in social and cultural communities and approval and integration into the emerging digital culture. Thus, it is possible to observe signs ...
Added: September 15, 2023