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simulation Winter Conference

作者： Andreas Tolk Osman Balci Saikou Y. Diallo Paul A. Fishwick Xiaolin Hu Margaret Loper Mikel D. Petty Paul F. Reynolds Hessam Sarjoughian Bernard P. Zeigler Engineering Management & Systems Engineering Old Dominion University Norfolk VA USA Department of Computer Science Virginia Polytechnic Institute and State University Blacksburg VA USA Virginia Modeling Analysis & Simulation Center Old Dominion University Suffolk VA USA Digital Arts and Sciences CISE Department University of Florida Gainesville FL USA Computer Science Department Georgia State University Atlanta GA USA Information & Communications Laboratory Georgia Tech Research Institute Georgia Institute of Technology Atlanta GA USA University of Alabama-Huntsville Huntsville AL USA University of Virginia Charlottesville VA USA Center for Integrative Modeling and Simulation Arizona State University Tempe AZ USA RTSync Corp. Rockville MD USA

Although Modeling and simulation is successfully applied for several decades, the community only established a handful of M&S specific standards. Although the standards were applied enabling worldwide distributed simulation applications, in particular in the training application domain of military simulation systems, the general success of M&S standard efforts and their potential for general applicability has been debated repeatedly during several conferences and workshop. This collection of position statements discusses related questions, such as, “What makes M&S special that we need M&S standards,” “Are M&S standards truly different from Software Engineering Standards,” and “What metrics can be used to measure M&S standard success,” and tries to contribute to establishing a methodological approach to identify future M&S standard needs. These position statements have been contributed in preparation of a panel discussion and edited for the supporting proceedings.

关键词： Standards USA Councils Biological system modeling Educational institutions Computational modeling

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A rapid reentry trajectory planning method for CAV

A rapid reentry trajectory planning method for CAV

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International Symposium on systems and Control in Aerospace and Astronautics (ISSCAA)

作者： Zhiqiang Zhao Zhengdong Hu National University of Defense Technology Changsha China Complex Systems Simulation-II National Key Laboratory of Science and Technology Beijing China

ISBN: (纸本)9781424460434

A rapid reentry trajectory planning method for a common aero vehicle (CAV) subject to all path constraints is developed. The reentry trajectory is divided into initial descent phase and quasi-equilibrium glide phase which possesses a majority of the reentry period. An improved quasi-equilibrium glide condition is utilized to convert reentry corridor constraints to the control variable constraints and get a simple relation between the range-to-go and velocity. Accordingly the longitudinal reference trajectory is computed through the one-parameter search of bank angle model and the corresponding tracking law is designed using linear quadratic regulator theory. To enhance the maneuvering capability, a geometrical control approach considering no-fly zone constraints is applied to the lateral guidance. Finally, the performance of this method is verified by computer simulation.

关键词： Trajectory Aerodynamics Planning Vehicles Heating Earth Mathematical model

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Compactness of the commutators of parabolic singular integrals

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science China Mathematics 2010年第10期53卷 2633-2648页

作者： CHEN YanPing1 & DING Yong2,3 1Department of Mathematics and Mechanics,University of science and technology Beijing,Beijing 100083,China 2School of Mathematical science,Beijing Normal University,Beijing 100875,China 3laboratory of Mathematics and complex systems (BNU),Ministry of Education of China,Beijing 100875,China 1. Department of Mathematics and Mechanics University of Science and Technology Beijing Beijing 100083 China2. School of Mathematical Science Beijing Normal University Beijing 100875 China3. Laboratory of Mathematics and Complex Systems (BNU) Ministry of Education of China Beijing 100875 China

In this paper,the authors prove that the commutator [b,T] of the parabolic singular integrals is a compact operator on Lp(Rn)(1 < p < ∞) if and only if b ∈ VMO(Rn,ρ).The result is substantial improvem... 详细信息

关键词： parabolic singular integrals commutators compactness BMO VMO

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Reconstructing car shape from a still image

Reconstructing car shape from a still image

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2010 IEEE International Conference on Vehicular Electronics and Safety, ICVES 2010

作者： Yuan, Gu Tang, Shuming Wang, Fei-Yue Laboratory of Complex Systems and Intelligence Science Institute of Automation Chinese Academy of Science Beijing 100190 China Shandong University of Science and Technology Qingdao 266510 China University of Arizona Tucson AZ 85721 United States

ISBN: (纸本)9781424471249

This paper addresses the problem of detecting and recognizing car 3D-contour in the presence of car occlusion from a still image. We proposed a deformable template - Meaning Active Basis Model (mABM) which is a variant of Active Basis Model (ABM). MABMs consists of a small number of Gabor wavelet elements with different locations, orientations and sizes, and every element corresponds some specific part contour of a car. We use mABMs to detect 2D-contours of cars with various colors, sizes and shapes, in the process of detection elements of mABM are allowed to slightly perturb their locations and orientations to get the accurate 2D-contours. After detection, the car 3D shape is reconstructed according to the 2D-contour and the calibrated camera parameters. Another contribution of this paper is a novel technique of handling car occlusion: we coarsely rebuild car 3D-cuboid models according to the detecting result of mABMs, followed by the estimation of the overlap coefficients to separate occluded cars. Experimental results with real world images show that this method is effective in the detection of cars even under severe occlusions. © 2010 IEEE.

关键词： Three dimensional computer graphics

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CardioGRID: a framework for the analysis of cardiological signals in GRID computing

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Journal of Physics: Conference Series 2011年第1期313卷

作者： Juan Francisco Garcia Eijo Marcelo Risk Francisco Prieto Castrillo Cesar Suarez Ortega Maria Boton Fernandez Alfonso Pardo Diaz Manuel Rubio del Solar Raul Ramos Pollan Laboratory of Complex Systems Department of Computer Science FCEyN. University of Buenos Aires Argentina Extremadura Research Centre for Advanced Technologies. Research Centre for Energy Environment and Technology (CETA-CIEMAT). Trujillo Spain

The present paper describes the development of the CardioGRID framework into the GRID infrastructure. The core GRID services; Workload Management System (WMS), Data Management System and Grid Authentication have been implemented. Additionally, a web-based tool -the CardioGRID portal- has been developed to facilitate the user interaction with the GRID. As a result, the user is able to process the electrocardiogram (ECG) signals obtained form a portable data acquisition device and to process it on the GRID. Once the CardioGRID portal is prompted and the user identity is verified through a digital X.509 certificate, the operator may either upload new raw ECG data to the GRID Storage Elements or use already stored data. Then, subsequent analytics from these data are performed as GRID jobs and relevant medical quantities are derived through middle-ware job retrieval mechanism. In summary in this paper was described the development of a medical GRID based system, and its integration to an existing platform for Digital Repositories Infrastructure.

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Reconstructing Car Shape from a Still Image

Reconstructing Car Shape from a Still Image

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2010 IEEE International Conference on Vehicular Electronics and Safety(2010 IEEE 汽车电子与安全国际会议)

作者： Gu Yuan Shuming Tang Fei-Yue Wang Laboratory of Complex Systems Intelligence Science Institute of AutomationChinese Academy of Scienc Shandong University of Science and Technology Qingdao 266510China Key Laboratory of Complex Systems Laboratory of Complex Systems and Intelligence Science Institute of AutomationChinese Academy of Sc

This paper addresses the problem of detecting and recognizing car 3Dcontour in the presence of car occlusion from a still image. We proposed a deformable template-Meaning Active Basis Model (mABM) which is a variant of Active Basis Model (ABM). MABMs consists of a small number of Gabor wavelet elements with different locations, orientations and sizes, and every element corresponds some specific part contour of a car. We use mABMs to detect 2Dcontours of cars with various colors, sizes and shapes, in the process of detection elements of mABM are allowed to slightly perturb their locations and orientations to get the accurate 2Dcontours. After detection, the car 3D shape is reconstructed according to the 2Dcontour and the calibrated camera parameters. Another contribution of this paper is a novel technique of handling car occlusion: we coarsely rebuild car 3Dcuboid models according to the detecting result of mABMs, followed by the estimation of the overlap coefficients to separate occluded cars. Experimental results with real world images show that this method is effective in the detection of cars even under severe occlusions.

关键词： Computational modeling Vehicles Manganese

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Performance evaluation of beaconing in dense VANETs

Performance evaluation of beaconing in dense VANETs

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2010 IEEE Youth Conference on Information, Computing and Telecommunications, YC-ICT 2010

作者： Tian, Daxin Wang, Yunpeng Ma, Kuifeng MOE Key Laboratory for Urban Transportation Complex Systems Theory and Technology Beijing Jiaotong University Beijing 100044 China School of Transportation Science and Engineering Beihang University Beijing 100191 China

ISBN: (纸本)9781424488841

Beaconing is one of the core communication method for Vehicle Ad Hoc Networks (VANETs). In this paper we traced the beaconing behavior in dense VANETs by NS2 with free space, two-ray ground, and shadowing radio propagation models. Among the 100 line up vehicles with 10m inter-vehicle distance, one beacon can be successfully received by all vehicles in 55ms, the packet loss rate is about 40%. We also observed that there is fluctuation behavior in packet receive. © 2010 IEEE.

关键词： Vehicular ad hoc networks

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Research and application of conflict detection technology in machinery collaborative design

Research and application of conflict detection technology in...

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International Conference on Computer Supported Cooperative Work in Design

作者： Hanmei Chen Yinzhang Guo Complex Systems and Computational Intelligence Laboratory Taiyuan University of Science and Technology Taiyuan China

In mechanical product collaborative design to solve the problem of conflict detection, classification and resolution, in which a method of detecting conflict based on constraint satisfaction techniques were studied, Constraint network was established and interval propagation algorithms was proposed to solve constraint satisfaction problems. The storage and representation of design constraints and interval propagation process were discussed in detail in the collaborative design process. Based on theoretical study, a Constraint — Based Conflict Detection prototype combined with examples of excavator product design was developed.

关键词： Machinery Collaboration Collaborative work Product design Process design Prototypes Product development Computational intelligence Laboratories Mechanical products

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News filtering and summarization on the Web

News filtering and summarization on the Web

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作者： Wu, Xindong Wu, Gong-Qing Xie, Fei Zhu, Zhu Hu, Xue-Gang Lu, Hao Li, Huiqian School of Computer Science and Information Engineering Hefei University of Technology China Zhejiang Taobao Network China Key Laboratory of Complex Systems and Intelligence Science Institute of Automation Chinese Academy of Sciences China Center for Social Computing and Parallel Systems Institute of Automation Chinese Academy of Sciences China

The news filtering and summarization (NFAS) system can automatically recognize Web news pages, retrieve each news page's title and news content, and extract key phrases. This extraction method substantially outper...

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Numerical simulation of Flameless Premixed Combustion with an Annular Nozzle in a Recuperative Furnace

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Chinese Journal of Chemical Engineering 2010年第1期18卷 10-17页

作者：米建春李鹏飞郑楚光 State Key Laboratory of Turbulence and Complex Systems Department of Energy-& Resources Engineering College of Engineering Peking University Beijing 100871 China State Key Laboratory of Coal Combustion Huazhong University of Science and Technology Wuhan 430074 China

This paper reports an investigation of Computational Fluid Dynamics(CFD)on the influence of injection momentum rate of premixed air and fuel on the flameless Moderate or Intense Low oxygen Dilution(MILD) combustion in a recuperative *** of the furnace flow velocity,temperature,O2,CO2 and NOx concentrations are *** obtained suggest that the flue gas recirculation plays a vital role in establishing the premixed MILD *** is also revealed that there is a critical momentum rate of the fuel-air mixture below which MILD combustion does not ***,the momentum rate appears to have less significant influence on conventional global combustion than on MILD combustion.

关键词： flameless oxidation premixed combustion numerical simulation

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