检索结果-内蒙古大学图书馆

15th International Conference on Optimization and Applications, OPTIMA 2024

作者： Gornov, Alexander Anikin, Anton Sorokovikov, Pavel Zarodnyuk, Tatiana Matrosov Institute for System Dynamics and Control Theory of SB RAS Lermontov Str. 134 Irkutsk664033 Russia

ISBN: (纸本)9783031791185

The article discusses a novel approach for optimizing atomic-molecular structures in extra-large clusters, focusing on reducing computational complexity and applying parallel computing techniques. A three-stage computation process is outlined, offering benefits over traditional algorithms by efficiently navigating through multi-extremal optimization challenges. The software, based on this methodology, demonstrated high efficacy in solving complex molecular dynamics problems. When comparing the outcomes with experimental data, no significant deviations from the expected patterns in potential values were detected. The developed three-stage numerical approach proved instrumental in solving optimization tasks for extra-large atomic-molecular systems. © The Author(s), under exclusive license to Springer Nature Switzerland AG 2025.

关键词： Molecular dynamics

来源：评论

学校读者我要写书评

暂无评论

On the Application of a Queuing Network to Simulate Container Transshipment in a Sea Container Terminal 23rd

On the Application of a Queuing Network to Simulate Cont...

引用

23rd International Conference on Information Technologies and Mathematical Modelling, ITMM 2024

作者： Kazakov, Alexander Lempert, Anna Vu, Giang Zharkov, Maxim Matrosov Institute for System Dynamics and Control Theory of Siberian Branch of Russian Academy of Sciences (IDSTU SB RAS) Irkutsk Russian Federation Irkutsk National Research Technical University Irkutsk Russian Federation

ISBN: (纸本)9783031883064

The article concerns mathematical modeling and simulation of container handling in a sea container terminal based on queueing theory. The model has the form of a queueing network (QN), and various request flows are applied to describe the arrival of transport from sea and land. QN nodes describe the operation of the terminal structural elements, so they differ in the types of queuing systems used, queue length, number of servicing channels, and their performance. To describe two container movement routes, we use different types of requests with individual route matrices. The object of the study is the largest sea container terminal in the northern part of Vietnam. The QN describing its operation includes 15 nodes, two types of requests, and two incoming flows, one of which is batch. Based on the results of the simulation, the current level of terminal load and its maximum throughput are determined. In addition, we assess the operability of the object when organizing a new route followed by ultra-large container vessels. © The Author(s), under exclusive license to Springer Nature Switzerland AG 2025.

关键词： container shipping mathematical model queuing theory sea transport simulation

来源：评论

学校读者我要写书评

暂无评论

The light-by-light contribution to the muon g − 2 within the nonlocal chiral quark model with vector and axial-vector mesons

arXiv

引用

arXiv 2025年

作者： Radzhabov, A.E. Zhevlakov, A.S. Matrosov Institute for System Dynamics and Control Theory SB RAS Irkutsk664033 Russia Joint Institute of Nuclear Research BLTP Moscow region Dubna141980 Russia

The hadronic light-by-light contribution to the muon anomalous magnetic moment is calculated in the framework of a nonlocal quark model with scalar–pseudoscalar and vector–axial-vector channels. The effect of the dressing of internal photons by vector mesons is found to be tiny. As a result, the contribution from the non-strange quark loop is aHLbLµLoop = (96 ± 15.4) × 10−11. The total value, including meson exchanges and the contribution of strange particles, is aHLbLµ = (157 ± 10.6)×10−11 Copyright © 2025, The Authors. All rights reserved.

关键词： Magnetic moments

来源：评论

学校读者我要写书评

暂无评论

VOLTERRA MAP AND RELATED RECURRENCES

arXiv

引用

arXiv 2025年

作者： Svinin, Andrei K. Matrosov Institute for System Dynamics and Control Theory Siberian Branch of Russian Academy of Sciences P.O. Box 292 Irkutsk664033 Russia

In this paper we analyze recent work [10] by Hone, Roberts and Vanhaecke, where the so-called Volterra map was introduced via the Lax equation that looks similar to the Lax representation for the Mumford’s system [21]. This map turns out to be birational and a corresponding dynamical system on an affine space Mg of dimension 3g + 1 was associated with it. This mapping is related to some discrete equation of the order 2g + 1 associated with the Stieltjes continued fraction expansion of a certain function on a hyperelliptic (elliptic) curve of genus g ≥ 1. The authors of the paper provides examples of this equation for the simplest cases g = 1 and g = 2, but for higher values of g, corresponding equation turns out to be too cumbersome to write them out. We present an approach in which the mentioned (2g+1)-order equation can be written out for all values of g ≥ 1 in a compact form. This equation is not new and can be found, for example, in [18]. An essential point in our framework is the use of special class of discrete polynomials which as shown to be closely related to the Stieltjes continued fraction. On the one hand, this allows us to generalize some of the results of the work [10]. On the other hand, many things in this approach can be presented in a more compact and unified form. Ultimately, we believe that this allows us to give a new perspective on this topic. © 2025, CC BY.

关键词： Dynamical systems

来源：评论

学校读者我要写书评

暂无评论

Relationships between heavy metal migration in soils and landslide dynamics under conditions of modern climate change: A case study of Lake Baikal, Olkhon Island

引用

Science of the Total Environment 2025年 975卷 179285页

作者： Cherkashina, Tatiana Yu. Svetlakov, Artem A. Pellinen, Vadim A. Cherkashin, Evgeny A. Institute of the Earth's Crust Siberian Branch of Russian Academy of Sciences Lermontov St. 128 Irkutsk664033 Russia Matrosov Institute for System Dynamics and Control Theory Siberian Branch of Russian Academy of Sciences Lermontov St. 134 Irkutsk664033 Russia

The problem of studying landslide processes has attracted worldwide attention due to both the increase in human activities. New data for environmental monitoring of the Lake Baikal coast were obtained. The main goal aims to establish relationships between modern climate changes and the landslide process dynamics, as expressed in the assessment of Hg, Pb, Cd contamination levels, the identification of their possible sources and interelemental relationships, as well as the evaluation of some natural factors. Some improvements to previously developed analytical and physical-mechanical techniques have been made, which have enabled to improve some statistical characteristics for the analytical methods, as well as to achieve uniform moisture distribution throughout the tested sample to the specified values. The coastal zone was classified as moderately to heavily contaminated by Hg (2.97) and Pb (2.08) using the Cf method. The EF and Igeo methods indicated that a significant amount of Hg and Pb was probably from anthropogenic sources. The PCA indicated a strong inverse relationship between Hg and Cd (−0.833) in the landslide zone (L3 site) and a perfect positive relationship in the coastal zone (0.992) that suggests different sources and pathways. A change in soil temperature to positive values (from 0.6 to 1.1 °C) leads to an increase in the depth of thawing, which results in a lowering of the permafrost roof. This proves that permafrost rocks influence landslide activation, which in turn leads to migration of heavy metals in the landslide. These conclusions are fully consistent with the main goal of the study and the proposed hypotheses. These findings can help the authorities of the National Parks and other individuals in charge of making decisions regulate the anthropogenic load on the ecosystem of Olkhon Island and generally the Baikal region. © 2025

关键词： Lake pollution

来源：评论

学校读者我要写书评

暂无评论

BV solutions of rate independent processes driven by impulsive controls

引用

IFAC-PapersOnLine 2018年第32期51卷 361-366页

作者： Samsonyuk, Olga N. Timoshin, Sergey A. Matrosov Institute for System Dynamics and Control Theory of SB RAS Irkutsk Russia

An extension to discontinuous inputs of bounded variation of the play operator is presented. The motivation for such an extension comes from optimal impulsive control problems with hysteresis. The latter is introduced by means of variational inequalities modeling the action of the play operator on the BV-inputs. Our extension is applied to the graph completions of BV-functions and it allows us to study impulsive control systems characterized by measure-driven differential equations with nonlinear terms of hysteresis type. Some approximation results for impulsive processes are also provided. © 2018

关键词： Process control Differential equations Hysteresis Nonlinear equations Variational techniques Approximation results impulsive Impulsive control systems Impulsive controls Optimal controls Optimal impulsive control Rate independent process Variational inequalities

来源：评论

学校读者我要写书评

暂无评论

Optimality conditions with feedback controls for optimal impulsive control problems

引用

IFAC-PapersOnLine 2018年第32期51卷 509-514页

作者： Dykhta, Vladimir A. Samsonyuk, Olga N. Matrosov Institute for System Dynamics and Control Theory of SB RAS Irkutsk Russia

This paper concerns with optimal impulsive control problems with trajectories of bounded variation. Necessary optimality conditions based on weakly monotone solutions of the Hamilton Jacobi inequality and feedback controls are discussed. A particular attention is paid to necessary optimality conditions with feedback controls, called Feedback minimum principle. The latter is generalized the corresponding principle for classical optimal control problems and is formulated in terms of Pontryagin Maximum Principle. An example illustrating these results is considered. © 2018

关键词： Feedback control Differential equations Optimal control systems Bounded variations Hamilton Jacobi inequality Impulsive controls Minimum Principles Necessary optimality condition Optimal control problem Optimal impulsive control Optimality conditions

来源：评论

学校读者我要写书评

暂无评论

The sphere packing problem into bounded containers in three-dimension non-Euclidean space

引用

IFAC-PapersOnLine 2018年第32期51卷 782-787页

作者： Kazakov, A.L. Lempert, A.A. Ta, T.T. Matrosov Institute for System Dynamics and Control Theory SB RAS Irkutsk Russia Irkutsk National Research Technical University Irkutsk Russia

This paper deals with the problem of optimal packing a given number of equal spheres into different closed sets. We consider the problem both in three-dimensional Euclidean and non-Euclidean spaces. The special algorithm based on optical-geometric approach is suggested and implemented. This approach is previously used only for packing circles in two-dimensional space. Numerical results are presented and discussed. © 2018

关键词： Spheres

来源：评论

学校读者我要写书评

暂无评论

Angular coefficients of the Drell-Yan process across different rapidity and kinematical ranges

arXiv

引用

arXiv 2025年

作者： Lyubovitskij, Valery E. Zhevlakov, Alexey S. Anikin, Iurii A. Institut für Theoretische Physik Universität Tübingen Auf der Morgenstelle 14 TübingenD-72076 Germany of ANID Fernández Concha 700 Santiago Chile Bogoliubov Laboratory of Theoretical Physics Joint Institute for Nuclear Research Dubna141980 Russia Matrosov Institute for System Dynamics and Control Theory SB RAS Lermontov str. 134 Irkutsk664033 Russia Department of Physics Tomsk State University Tomsk634050 Russia

We present comprehensive analysis of the angular structure of the Drell-Yan process at different rapidity and kinematical ranges using data of the ATLAS, LHCb, and CMS Collaborations at CERN LHC. From theory side we discuss next-to-leading order calculations in the framework of the collinear perturbative QCD and geometrical method. © 2025, CC BY.

关键词： Angular distribution

来源：评论

学校读者我要写书评

暂无评论

Digital platform for forest resources monitoring in the BAIKAL natural territory 13

Digital platform for forest resources monitoring in the BAIK...

引用

13th Multiconference on control Problems, MCCP 2020

作者： Bychkov, I.V. Ruzhnikov, G.M. Fedorov, R.K. Popova, A.K. Matrosov Institute for System Dynamics and Control Theory Sb Ras Irkutsk Russia

Forest is the most important natural resource of the Baikal natural territory (BNT), which ensures sustainable development of the ecological system of the Lake Baikal, performing water protection, soil protection and water regulation functions. The article describes the issues of transition to a new technological order - the creation of a digital monitoring platform to support the rational use of forests. We formulate characteristics of the current state of forests and analyze the problems of forest resources monitoring in the BNT. We consider the types of digital platforms of different levels and propose basic requirements for forest digital monitoring. © Published under licence by IOP Publishing Ltd.

关键词： Lakes

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：