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IEEE Conference on Decision and Control

作者： Michael Dymkov Eric Rogers Siarhei Dymkou Krzysztof Galkowski Belarus State Economic University Minsk Belarus School of Electronics and Computer Science University of Southampton Southampton UK Department of Applied Mathematics II Friedrich-Alexander-University of Erlangen-Nuremberg Erlangen Germany Institute of Control and Computation Engineering University of Zielona Góra Zielona Gora Poland

ISBN: (纸本)9781424431236

Differential repetitive processes are a distinct class of continuous-discrete two-dimensional linear systems of both systems theoretic and applications interest. These processes complete a series of sweeps termed passes through a set of dynamics defined over a finite duration known as the pass length, and once the end is reached the process is reset to its starting position before the next pass begins. Moreover the output or pass profile produced on each pass explicitly contributes to the dynamics of the next one. Applications areas include iterative learning control and iterative solution algorithms, for classes of dynamic nonlinear optimal control problems based on the maximum principle, and the modeling of numerous industrial processes such as metal rolling, longwall cutting, etc. In this paper we develop substantial new results on optimal control of these processes in the presence of constraints where the cost function and constraints are motivated by practical application of iterative learning control to robotic manipulators and other electromechanical systems. The analysis is based on generalizing the well-known maximum and ¿-maximum principles to them.

关键词： Constraint theory Optimal control Linear systems Iterative algorithms Electrical equipment industry Industrial control Metals industry Cost function Robot control Control systems

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Observation of a Centrality-Dependent Dijet Asymmetry in Lead-Lead Collisions at sNN=2.76 TeV with the ATLAS Detector at the LHC

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Physical Review Letters 2010年第25期105卷 252303-252303页

作者： G. Aad B. Abbott J. Abdallah A. A. Abdelalim A. Abdesselam O. Abdinov B. Abi M. Abolins H. Abramowicz H. Abreu E. Acerbi B. S. Acharya M. Ackers D. L. Adams T. N. Addy J. Adelman M. Aderholz S. Adomeit P. Adragna T. Adye S. Aefsky J. A. Aguilar-Saavedra M. Aharrouche S. P. Ahlen F. Ahles A. Ahmad M. Ahsan G. Aielli T. Akdogan T. P. A. Åkesson G. Akimoto A. V. Akimov M. S. Alam M. A. Alam S. Albrand M. Aleksa I. N. Aleksandrov M. Aleppo F. Alessandria C. Alexa G. Alexander G. Alexandre T. Alexopoulos M. Alhroob M. Aliev G. Alimonti J. Alison M. Aliyev P. P. Allport S. E. Allwood-Spiers J. Almond A. Aloisio R. Alon A. Alonso J. Alonso M. G. Alviggi K. Amako P. Amaral C. Amelung V. V. Ammosov A. Amorim G. Amorós N. Amram C. Anastopoulos T. Andeen C. F. Anders K. J. Anderson A. Andreazza V. Andrei M-L. Andrieux X. S. Anduaga A. Angerami F. Anghinolfi N. Anjos A. Annovi A. Antonaki M. Antonelli S. Antonelli J. Antos F. Anulli S. Aoun L. Aperio Bella R. Apolle G. Arabidze I. Aracena Y. Arai A. T. H. Arce J. P. Archambault S. Arfaoui J-F. Arguin E. Arik M. Arik A. J. Armbruster K. E. Arms S. R. Armstrong O. Arnaez C. Arnault A. Artamonov G. Artoni D. Arutinov S. Asai J. Silva R. Asfandiyarov S. Ask B. Åsman L. Asquith K. Assamagan A. Astbury A. Astvatsatourov G. Atoian B. Aubert B. Auerbach E. Auge K. Augsten M. Aurousseau N. Austin R. Avramidou D. Axen C. Ay G. Azuelos Y. Azuma M. A. Baak G. Baccaglioni C. Bacci A. M. Bach H. Bachacou K. Bachas G. Bachy M. Backes E. Badescu P. Bagnaia S. Bahinipati Y. Bai D. C. Bailey T. Bain J. T. Baines O. K. Baker S Baker F. Baltasar Dos Santos Pedrosa E. Banas P. Banerjee Sw. Banerjee D. Banfi A. Bangert V. Bansal H. S. Bansil L. Barak S. P. Baranov A. Barashkou A. Barbaro Galtieri T. Barber E. L. Barberio D. Barberis M. Barbero D. Y. Bardin T. Barillari M. Barisonzi T. Barklow N. Barlow B. M. Barnett R. M. Barnett A. Baroncelli A. J. Barr F. Barreiro J. Barreiro Guimarães da Costa P. Barrillon R. Bartoldus A. E. Barton D. Bartsch R. L. Bates L. Batkova J. R. Batley A. Battaglia M. Albert-Ludwigs-Universität Fakultät für Mathematik und Physik Hermann-Herder Strasse 3 D-79104 Freiburg i.Br. Germany University of Oklahoma Homer L. Dodge Department of Physics and Astronomy 440 West Brooks Room 100 Norman Oklahoma 73019-0225 USA Institut de Física d’Altes Energies IFAE Edifici Cn Universitat Autònoma de Barcelona ES-08193 Bellaterra (Barcelona) Spain Université de Genève Section de Physique 24 rue Ernest Ansermet CH-1211 Geneve 4 Switzerland Oxford University Department of Physics Denys Wilkinson Building Keble Road Oxford OX1 3RH United Kingdom Institute of Physics Azerbaijan Academy of Sciences H. Javid Avenue 33 AZ 143 Baku Azerbaijan Oklahoma State University Department of Physics 145 Physical Sciences Building Stillwater Oklahoma 74078-3072 USA Michigan State University Department of Physics and Astronomy High Energy Physics Group East Lansing Michigan 48824-2320 USA Tel Aviv University Raymond and Beverly Sackler School of Physics and Astronomy Ramat Aviv IL - Tel Aviv 69978 Israel LAL Université Paris-Sud IN2P3/CNRS Orsay France INFN Sezione di Milano via Celoria 16 IT-20133 Milano Italy Università di Milano Dipartimento di Fisica via Celoria 16 IT-20133 Milano Italy INFN Gruppo Collegato di Udine Strada Costiera 11 IT-33100 Udine Italy ICTP Strada Costiera 11 IT-34014 Trieste Italy University of Bonn Physikalisches Institut Nussallee 12 D-53115 Bonn Germany Brookhaven National Laboratory Physics Department Building 510A Upton New York 11973 USA Hampton University Department of Physics Hampton Virginia 23668 USA Yale University Department of Physics P.O. Box 208121 New Haven Connecticut 06520-8121 USA Max-Planck-Institut für Physik (Werner-Heisenberg-Institut) Föhringer Ring 6 80805 München Germany Ludwig-Maximilians-Universität München Fakultät für Physik Am Coulombwall 1 DE-85748 Garching Germany Queen Mary University of London Department of Physics Mile End Road London E1 4NS United Kingdom Ruther

By using the ATLAS detector, observations have been made of a centrality-dependent dijet asymmetry in the collisions of lead ions at the Large Hadron Collider. In a sample of lead-lead events with a per-nucleon center of mass energy of 2.76 TeV, selected with a minimum bias trigger, jets are reconstructed in fine-grained, longitudinally segmented electromagnetic and hadronic calorimeters. The transverse energies of dijets in opposite hemispheres are observed to become systematically more unbalanced with increasing event centrality leading to a large number of events which contain highly asymmetric dijets. This is the first observation of an enhancement of events with such large dijet asymmetries, not observed in proton-proton collisions, which may point to an interpretation in terms of strong jet energy loss in a hot, dense medium.

关键词： Energy dissipation

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Results of Associated Implication Algebra on a Partial Ordered Set

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Journal of Donghua University(English Edition) 2007年第2期24卷 293-296页

作者：伊良忠裴峥宋文 Department of Applied Mathematics Southwest Jiaotong University School of Mathematics and Computer Engineering Xihua University

Some sufficient and necessary conditions that implication algebra on a partial ordered set is associated implication algebra are obtained, and the relation between lattice H implication algebra and associated implicat... 详细信息

关键词： partial ordered set implication algebra implication associated attice H implication lgebre filter

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Block ignition Inertial Confinement Fusion (ICF) for space propulsion

Block ignition Inertial Confinement Fusion (ICF) for space p...

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作者： Miley, George H. Hora, H. Cang, Yu Osman, F. Badziak, J. Wolowski, J. Sheng, Zheng-Ming Zhang, Jie Zhang, Weiyan He, Xia Department of Nuclear Plasma and Radiological Engineering University of Illinois Urbana 61801 United States Department of Theoretical Physics University of New South Wales Sydney Australia School of Computer Sciences University of Western Sydney Penrith Australia Institute of Plasma Physics and Laser Microfusion Warsaw Poland Beijing National Laboratory for Condensed Matter Physics Institute of Physics Chinese Academy of Science Beijing 100080 China Institute of Applied Physics and Computational Mathematics Beijing China Nuclear Plasma and Radiological Engineering 216 Talbot Lab. 104 S. Wright Urbana IL 61801 United States Emeritus Theoretical Physics Sydney Australia Prollerweg 4 Garching/Munich Germany Dept. Mathematics Trinity College Summerville/Sydney Australia Institute of Plasma Physics and Laser Fusion Warsaw Poland Inst. Physics Chinese Academy of Sciences Beijing China Shanghai Jiao Tong University Shanghai China China Academy of Engineering Physics Beijing China Chinese Academy of Science Beijing China

ISBN: (纸本)9781563479434

Use of laser-driven Inertial Confinement Fusion (ICF) for space propulsion has been examined in several earlier conceptual design studies. However, these designs used older ICF target technology. Important new directions opened following the development of "chirped" lasers capable of ultra-short ps pulses with powers of PWs. This allows fast ignition (FI) for high energy gain ICF power plants1. The FI approach uses a conventional laser to pre-compress the target to high density. The PW laser is then fired on the compressed target, creating an internal electron beam that ignites fusion in a central core of the target. It is estimated that using a 10 TW-ps laser for FI can achieve fusion energy gains >103. Here a new type of FI, termed block ignition, is considered2-4. This approach can further increase the fusion gain offered through FI. Application of block ignition to the earlier VISTA design for ICF space propulsion unit is considered here. With the improved performance obtained, it becomes feasible to bypass DT fusion and use tritium-lean D targets as a first step for development of fusion propulsion technology.

关键词： Inertial confinement fusion

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Formal Concept Analysis Based on Set-valued Mapping

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Chinese Quarterly Journal of mathematics 2008年第3期000卷

作者： CHEN Li-ya HUANG Tao SONG Zhen-ming PEI Zheng School of Mathematics Computer Engineering Xihua UniversityChengdu 610039China Zheng zhou Industry Safety Vocational College Xinzheng 451192China Department of Applied Mathematics Southwest Jiaotong UniversityChengdu 610031China

Formal concept analysis (FCA) is a discipline that studied the hierarchical structares induced by a binary relation between a pair of sets,and applies in data analysis,information retrieval,knowledge discovery,*** this paper,it is shown that a formal context T is equivalent to a set-valued mapping S :G →P(M),and formal concepts could be defined in the set-valued mapping *** is known that the topology and set-valued mapping are ***,the advantage of this paper is that the conclusion make us to construct formal concept lattice based on the topology.

关键词： FCA set-valued mapping isomorphism

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A new wrapper method for feature subset selection

A new wrapper method for feature subset selection

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13th European Symposium on Artificial Neural Networks, ESANN 2005

作者： Sánchez-Maroño, Noelia Alonso-Betanzos, Amparo Castillo, Enrique University of A Coruña Department of Computer Science LIDIA Lab 15071 A Coruña Spain University of Cantabria Civil Engineering School Department of Applied Mathematics and Computer Science 39005 Santander Spain

ISBN: (纸本)2930307056

ANOVA decomposition is used as the basis for the development of a new wrapper feature subset selection method, in which functional networks are used as the induction algorithm. The performance of the proposed method was tested against several artificial and real data sets. The results obtained are comparable, and even better, in some cases, to those accomplished by other well-known methods, being the proposed algorithm faster.

关键词： Feature Selection

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Graph coloring with no large monochromatic components

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Electronic Notes in Discrete mathematics 2007年第SPEC. ISS.期29卷 115-122页

作者： Linial, Nathan Matoušek, Jiří Sheffet, Or Tardos, Gábor School of Computer Science and Engineering Hebrew University Jerusalem Israel Department of Applied Mathematics Institute of Theoretical Computer Science (ITI) Charles University 118 00 Praha 1 Malostranské nám. 25 Czech Republic School of Computer Science and Engineering Hebrew University Jerusalem Israel School of Computing Science Simon Fraser University Burnaby BC Budapest Canada

For a graph G and an integer t we let m c ct (G) be the smallest m such that there exists a coloring of the vertices of G by t colors with no monochromatic connected subgraph having more than m vertices. Let F be any nontrivial minor-closed family of graphs. We show that mcc2 (G) = O (n^{2 / 3}) for any n-vertex graph G ∈ F. This bound is asymptotically optimal and it is attained for planar graphs. More generally, for every such F, and every fixed t we show that mcct (G) = O (n^{2 / (t + 1)}). On the other hand, we have examples of graphs G with no Kt + 3 minor and with mcct (G) = Ω (n^{(2 / 2 t - 1)}). It is also interesting to consider graphs of bounded degrees. Haxell, Szabó, and Tardos proved mcc2 (G) ≤ 20000 for every graph G of maximum degree 5. We show that there are n-vertex 7-regular graphs G with mcc2 (G) = Ω (n), and more sharply, for every ε > 0 there exists cε > 0 and n-vertex graphs of maximum degree 7, average degree at most 6 + ε for all subgraphs, and with mcc2 (G) ≥ cε n. For 6-regular graphs it is known only that the maximum order of magnitude of mcc2 is between sqrt(n) and n. We also offer a Ramsey-theoretic perspective of the quantity m c ct (G). © 2007 Elsevier B.V. All rights reserved.

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Parallel Simulation of Compressible Fluid Dynamics Using Lattice Boltzmann Method

Parallel Simulation of Compressible Fluid Dynamics Using Lat...

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第一届最优化与系统生物学国际研讨会

作者： Bing He Wei-Bing Feng Wu Zhang Yu-Ming Cheng School of Computer Engineering and Science Shanghai University Shanghai Institute of Applied Mathematics and Mechanics Shanghai University

The Lattice Boltzmann Method （LBM） has numerous computational advantages, such as the simplicity of programming, the ability to incorporate microscopic interactions, and the easy parallelization of algorithms. The traditional lattice Boltzmann model has a constraint of small mach number（the velocity of fluid must be less than 0.3 mach）. This paper presents a novel lattice Boltzmann method to simulate compressible flows, Appling the model in computing the velocity of flows between 0.3 mach to 0.7 mach. The numerical experiments show that our algorithm is more numerical stable than traditional LBM methods when the Reynolds number is large. The parallel performance of this algorithm on workstation clusters is presented in the end.

关键词： Lattice Boltzmann method compressible fluid dynamics parallel computing cache optimization.

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AN AUTONOMOUS AGENT-BASED ITERATIVE BIDDING MECHANISM FOR MANUFACTURING RESOURCE OPTIMISATION

AN AUTONOMOUS AGENT-BASED ITERATIVE BIDDING MECHANISM FOR MA...

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INternational Conference on Product Design and Manufacturing Systems(2007年产品设计与制造系统国际会议)

作者： MK Lim Z Zhang WT Goh School of Engineering and Applied Science Aston University UK School of Engineering Computer Science and MathematicsUniversity of Exeter UK School of Mechanical Engineering University of Sheffield UK

The competitive global market has placed great pressures on manufacturing organisations in coping with dynamic customer *** order to strive for greater market shares,manufacturing organisations must be capable of rapid coping with *** paper introduces an agent-based iterative bidding mechanism,which aims at facilitating the integration of the functions of production planning and control,so as to dynamically optimise the utilisation of manufacturing resources in response to market *** bidding mechanism is also used as a means for co-ordinating the *** agent bidding process is carried out based on a currency scheme,in which all jobs are assigned with virtual currency values and agents bid for the jobs based on these *** currency values are adjusted iteratively and the agents re-bid for the jobs based on the new set of currency *** bidding process takes place iteratively until the total production cost is *** this way,the optimisation of the utilisation of manufacturing resources can also be *** deal with the adjustment of currency values,a Tabu Search optimisation algorithm is *** the implementation of the agent system,a test case is presented and the results will also he discussed.

关键词： Agile manufacturing Multi-agent system Adaptive manufacturing systems Tabu Search

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Multidimensional solitons in irregular-lattice media

Multidimensional solitons in irregular-lattice media

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Bragg Gratings, Photosensitivity, and Poling in Glass Waveguides, BGPP 2007

作者： Ilan, Boaz Ablowitz, Mark J. Schonbrun, Ethan Piestun, Rafael School of Natural Sciences University of California Merced P.O. Box 2039 Merced CA 95344 United States Department of Applied Mathematics University of Colorado Boulder CO 80309-0526 United States School of Engineering and Applied Sciences Harvard University Cambridge MA 02138 United States Department of Electrical and Computer Engineering University of Colorado Boulder CO 80309-0425 United States

Localized nonlinear modes, i.e., solitons, are computed for the two-dimensional nonlinear Schrodinger equation with external lattices that posses vacancy defects, edge dislocations, quasicrystal and Bessel structures.... 详细信息

ISBN: (纸本)1557528470

关键词： Solitons

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