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IEEE International Symposium on Parallel and Distributed Processing Workshops and Phd Forum (IPDPSW)

作者： David Peña Andrei Tchernykh Sergio Nesmachnow Renzo Massobrio Alexander Feoktistov Igor Bychkov Computer Science Department CICESE Research Center Ensenada Baja California México Computer Science Institute Universidad de la República Montevideo Uruguay Dynamics and Control Theory of SB Matrosov Institute for System RAS Irkutsk Russia

In this paper, we study the problem of vehicle scheduling in urban public transport systems taking into account the vehicle-type (different capacity and operating cost) known as VTSP. It is modeled as a multiobjective optimization problem (MOP). We propose a heuristic based on MOCell (Multi-Objective Cellular evolutionary algorithm) to solve the problem considering restrictions of government agencies in context of smart cities to improve the Intelligent Transportation systems (ITS). A set of non-dominated solutions represents different assignments of vehicles to cover trips of a specific route. The conflicting objectives of provider and users (passenger) are to minimize the total operating cost, and maximize the quality of service, reducing the waiting time and congestion in buses. We present experimental analysis and conclude that the proposed heuristic provides a good performance and competitive results in terms of convergence and diversity of the solutions along the Pareto front.

关键词： Optimization Processor scheduling Smart cities Vehicles Evolutionary computation Government

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Conceptual Model of Problem-oriented Heterogeneous Distributed Computing Environment with Multi-agent Management

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Procedia Computer Science 2017年 103卷 162-167页

作者： I. Bychkov G. Oparin A. Tchernykh A. Feoktistov V. Bogdanova S. Gorsky Matrosov Institute for System Dynamics and Control Theory SB RAS Lermontov str. 134 Irkutsk Post Box 292 664033 Russia CICESE Research Center Computer Science Department Carretera Ensenada-Tijuana No. 3918 Zona Playitas Codigo Postal 22860 Apdo. Postal 360 Ensenada B.C. Mexico

One of the promising approaches to the efficient management in a heterogeneous distributed computing environment is the use of multi-agent systems. When researchers want to solve tasks in such an environment, they need utilities for the description of the processing in the specific domain, and knowledge about a software-hardware infrastructure. This multi-component knowledge is used for effective decision-making. Practice and experience of multi-agent systems show that knowledge representation is non-trivial problems. We proposed an approach to the design of the conceptual model of a heterogeneous distributed computing environment based on multi-agent management. An important component of the model is algorithmic knowledge, which provides the support of planning, resources allocation and dynamic decomposition of a problem to subproblems. This knowledge is represented as a semantic network, which describe semantic relations between concepts. Unlike to Semantic Web Services and Semantic Grids, our approach provides advanced planning abilities to support parallelism and scalability. We develop specialized high-level tools for designing and using the conceptual models.

关键词： multi-agent systems knowledge representation distributed computing environment.

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Stabilization of Multi-AUV formation with digital control

Stabilization of Multi-AUV formation with digital control

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International Convention on Information and Communication Technology, Electronics and Microelectronics

作者： S. A. Ul'yanov N. N. Maximkin Institute for System Dynamics and Control Theory / Department of Information Control Systems Irkutsk Russia

ISBN: (纸本)9781509025435

Formation stability problem for a team of autonomous underwater vehicles (AUV) with digital control is investigated. A leader-follower formation control algorithm for multi-AUV system is proposed. Feedback control signal for the follower, which is piecewise constant, is computed on the basis of discrete measurements of the distance and the bearing angle to the leader. A discrete observer for estimation of the derivatives of the distance and the bearing angle are used to improve the control performance. The parameters of the controller and observer are synthesized using a digital control system design method based on the vector Lyapunov functions that allows one to take into account the uncertainties of the plant, measurement errors, and control constraints. Numerical simulations are carried out to demonstrate the effectiveness of the proposed control scheme.

关键词： Observers Digital control Vehicle dynamics Stability analysis Feedback control Lyapunov methods

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Deep inelastic e−τ and μ−τ conversion in the NA64 experiment at the CERN SPS

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Physical Review D 2018年第1期98卷 015007-015007页

作者： Sergei Gninenko Sergey Kovalenko Serguei Kuleshov Valery E. Lyubovitskij Alexey S. Zhevlakov Institute for Nuclear Research 117312 Moscow Russia Departamento de Física y Centro Científico Tecnológico de Valparaíso-CCTVal Universidad Técnica Federico Santa María Casilla 110-V Valparaíso Chile Institut für Theoretische Physik Universität Tübingen Kepler Center for Astro and Particle Physics Auf der Morgenstelle 14 D-72076 Tübingen Germany Department of Physics Tomsk State University 634050 Tomsk Russia Tomsk State Pedagogical University 634061 Tomsk Russia Matrosov Institute for System Dynamics and Control Theory SB RAS Lermontov str. 134 664033 Irkutsk Russia

We study the lepton flavor violating (LFV) e(μ)−τ conversion in deep inelastic scattering (DIS) of electrons (muons) on fixed-target nuclei. Our model-independent analysis is based on the set of low-energy effective four-fermion LFV operators composed of leptons and quarks with the corresponding mass scales Λk for each operator. Using the estimated sensitivity of the search for this LFV process in events with large missing energy in the NA64 experiment at the CERN SPS, we derive lower limits for Λk and compared them with the corresponding limits existing in the literature. We show that the DIS e(μ)−τ conversion is able to provide a plenty of new limits as yet nonexisting in the literature. We also analyzed the energy spectrum of the final-state τ and discussed the viability of the observation of this process in the NA64 experiment and ones akin to it. The case of polarized beams and targets is also discussed.

关键词： Particle interactions

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Unitary quantization and para-Fermi statistics of order two

arXiv

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arXiv 2017年

作者： Markov, Yu.A. Markova, M.A. Gitman, D.M. Matrosov Institute for System Dynamics and Control Theory SB RAS Irkutsk Russia P.N. Lebedev Physical Institute Moscow Russia Department of Physics Tomsk State University Tomsk Russia Institute of Physics University of São Paulo São Paulo Brazil

A connection between a unitary quantization scheme and para-Fermi statistics of order 2 is considered. An appropriate extension of Green's ansatz is suggested. This extension allows one to transform bilinear and trilinear commutation relations for the annihilation and creation operators of two different para-Fermi fields φaand φbinto identity. The way of incorporating para-Grassmann numbers ξkinto a general scheme of uniquantization is also offered. For parastatistics of order 2 a new fact is revealed, namely, the trilinear relations containing both the para-Grassmann variables ξkand the field operators ak, bmunder a certain invertible mapping go over into the unitary equivalent relations, where commutators are replaced by anticommutators and vice versa. It is shown that the consequence of this circumstance is the existence of two alternative definitions of the coherent state for para-Fermi oscillators. The Klein transformation for Green's components of the operators ak, bmis constructed in an explicit form that enables us to reduce the initial commutation rules for the components to the normal commutation relations of ordinary Fermi fields. A nontrivial connection between trilinear commutation relations of the unitary quantization scheme and so-called Lie-supertriple system is analysed. A brief discussion of the possibility of embedding the Duffin-Kemmer-Petiau theory into the unitary quantization scheme is provided. Copyright © 2017, The Authors. All rights reserved.

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Deep inelastic e - τ and μ - τ conversion in the NA64 experiment at the CERN SPS

arXiv

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arXiv 2018年

作者： Gninenko, Sergei Kovalenko, Sergey Kuleshov, Serguei Lyubovitskij, Valery E. Zhevlakov, Alexey S. Institute for Nuclear Research Moscow117312 Russia Departamento de Fisica y Centro Científico Tecnológico de Valparaíso-CCTVal Universidad Técnica Federico Santa María Casilla110-V Chile Institut für Theoretische Physik Universität Tübingen Kepler Center for Astro and Particle Physics Auf der Morgenstelle 14 TübingenD-72076 Germany Department of Physics Tomsk State University Tomsk634050 Russia Tomsk State Pedagogical University Tomsk634061 Russia Matrosov Institute for System Dynamics and Control Theory SB RAS Lermontov str. 134 Irkutsk664033 Russia

We study the Lepton Flavor Violating (LFV) e(μ) - τ conversion in Deep Inelastic Scattering (DIS) of electrons (muons) on fixed-target nuclei. Our model-independent analysis is based on the set of low-energy effective four-fermion LFV operators composed of leptons and quarks with the corresponding mass scales Λkfor each operator. Using the estimated sensitivity of the search for this LFV process in events with large missing energy in the NA64 experiment at the CERN SPS, we derive lower limits for Λkand compared them with the corresponding limits existing in the literature. We show that the DIS e(μ) - τ conversion is able to provide a plenty of new limits as yet nonexisting in the literature. We also analyzed the energy spectrum of the final-state τ and discussed the viability of the observation of this process in the NA64 experiment and ones akin to it. The case of polarized beams and targets is also discussed. Copyright © 2018, The Authors. All rights reserved.

关键词： Distribution functions

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Bounds on rare decays of η and η0 mesons from the neutron EDM

arXiv

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arXiv 2018年

作者： Zhevlakov, Alexey S. Gorchtein, Mikhail Hiller Blin, Astrid N. Gutsche, Thomas Lyubovitskij, Valery E. Department of Physics Tomsk State University Tomsk634050 Russia Matrosov Institute for System Dynamics and Control Theory SB RAS Lermontov str. 134 Irkutsk664033 Russia Institut für Kernphysik Johannes Gutenberg-Universität Mainz Germany PRISMA Cluster of Excellence Johannes Gutenberg-Universität Mainz Germany Institut für Theoretische Physik Universität Tübingen Kepler Center for Astro and Particle Physics Auf der Morgenstelle 14 TübingenD-72076 Germany Departamento de Física y Centro Científico Tecnológico de Valparaíso-CCTVal Universidad Técnica Federico Santa María Casilla 110-V Valparaíso Chile Laboratory of Particle Physics Tomsk Polytechnic University Tomsk634050 Russia

We provide model-independent bounds on the rates of rare decays η(η0) → ππ based on experimental limits on the neutron electric dipole moment (nEDM). Starting from phenomenological η(η0)ππ couplings, the nEDM arises at two loop level. The leading-order relativistic ChPT calculation with the minimal photon coupling to charged pions and a proton inside the loops leads to a finite, counter term-free result. This is an improvement upon previous estimates which used approximations in evaluating the two loop contribution and were plagued by divergences. While constraints on the η(η0)ππ couplings in our phenomenological approach are somewhat milder than in the picture with the QCD θ-term, our calculation means that whatever the origin of these couplings, The decays η(η0) → 2π will remain unobservable in the near future. Copyright © 2018, The Authors. All rights reserved.

关键词： Bosons

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Mott dissociation of pions and kaons in hot, dense quark matter

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Physical Review D 2017年第9期96卷 094008-094008页

作者： D. Blaschke A. Dubinin A. Radzhabov A. Wergieluk Institute for Theoretical Physics University of Wroclaw 50-204 Wroclaw Poland Bogoliubov Laboratory for Theoretical Physics JINR Dubna 141980 Dubna Russia National Research Nuclear University (MEPhI) 115409 Moscow Russia Marian Smoluchowski Institute of Physics Jagellonian University Cracow 30-348 Cracow Poland Matrosov Institute for System Dynamics and Control Theory Irkutsk 664033 Russia Department of Physics and Astronomy University of California Los Angeles California 90095-1547 USA

We describe the Mott dissociation of pions and kaons within a Beth-Uhlenbeck approach based on the Polyakov-loop improved Nambu–Jona-Lasinio model, which allows for a unified description of bound, resonant and scattering states. Within this model we evaluate the temperature and chemical potential dependent modification of the phase shifts both in the pseudoscalar and scalar isovector meson channels for Nf=2+1 quark flavors. We show that the character change of the pseudoscalar bound states to resonances in the continuum at the Mott transition temperature is signaled by a jump of the phase shift at the threshold from π to zero, in accordance with the Levinson theorem. In particular, we demonstrate the importance of accounting for the scattering continuum states, which ensures that the total phase shift in each of the meson channels vanishes at high energies, thus eliminating mesonic correlations from the thermodynamics at high temperatures. In this way, we prove that the present approach provides a unified description of the transition from a meson gas to a quark-gluon plasma. We discuss the occurrence of an anomalous mode for mesons composed of quarks with unequal masses which is particularly pronounced for K+ and κ+ states at finite densities a a possible mechanism to explain the “horn” effect for the K+/π+ ratio in heavy-ion collisions.

关键词： Bound states Finite temperature field theory Nonperturbative effects in field theory Quark-gluon plasma Relativistic heavy-ion collisions

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26th Annual Computational Neuroscience Meeting (CNS*2017): Part 3 Antwerp, Belgium. 15-20 July 2017 Abstracts

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BMC NEUROSCIENCE 2017年第SUPPL 1期18卷 95-176页

作者： [Anonymous] Department of Neuroscience Yale University New Haven CT 06520 USA Department Physiology & Pharmacology SUNY Downstate Brooklyn NY 11203 USA NYU School of Engineering 6 MetroTech Center Brooklyn NY 11201 USA Departament de Matemàtica Aplicada Universitat Politècnica de Catalunya Barcelona 08028 Spain Institut de Neurobiologie de la Méditerrannée (INMED) INSERM UMR901 Aix-Marseille Univ Marseille France Center of Neural Science New York University New York NY USA Aix-Marseille Univ INSERM INS Inst Neurosci Syst Marseille France Laboratoire de Physique Théorique et Modélisation CNRS UMR 8089 Université de Cergy-Pontoise 95300 Cergy-Pontoise Cedex France Department of Mathematics and Computer Science ENSAT Abdelmalek Essaadi’s University Tangier Morocco Laboratory of Natural Computation Department of Information and Electrical Engineering and Applied Mathematics University of Salerno 84084 Fisciano SA Italy Department of Medicine University of Salerno 84083 Lancusi SA Italy Dipartimento di Fisica Università degli Studi Aldo Moro Bari and INFN Sezione Di Bari Italy Data Analysis Department Ghent University Ghent Belgium Coma Science Group University of Liège Liège Belgium Cruces Hospital and Ikerbasque Research Center Bilbao Spain BIOtech Department of Industrial Engineering University of Trento and IRCS-PAT FBK 38010 Trento Italy Department of Data Analysis Ghent University Ghent 9000 Belgium The Wellcome Trust Centre for Neuroimaging University College London London WC1N 3BG UK Department of Electronic Engineering NED University of Engineering and Technology Karachi Pakistan Blue Brain Project École Polytechnique Fédérale de Lausanne Lausanne Switzerland Departement of Mathematics Swansea University Swansea Wales UK Laboratory for Topology and Neuroscience at the Brain Mind Institute École polytechnique fédérale de Lausanne Lausanne Switzerland Institute of Mathematics University of Aberdeen Aberdeen Scotland UK Department of Integrativ

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Current status of the muon g-2

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Journal of Physics: Conference Series 2016年第1期678卷

作者： A. E. Dorokhov A. E. Radzhabov A. S. Zhevlakov Bogoliubov Laboratory of Theoretical Physics JINR 141980 Dubna Russia Department of Physics Tomsk State University Lenin ave. 36 634050 Tomsk Russia N.N. Bogoliubov Institute of Theoretical Problems of Microworld M.V. Lomonosov Moscow State University Moscow 119991 Russia Institute for System Dynamics and Control Theory SB RAS 664033 Irkutsk Russia

The current status of the muon g-2 problem is briefly discussed. We briefly discuss the latest results on the muon g-2 measured in experiment and obtained theoretically within the standard model. Special attention is for the hadronic corrections and in particular the corrections due to the light by light scattering mechanism. For latter we present the results found in the leading in 1/Nc approximation with the nonlocal chiral quark model.

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