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IEEE International Conference on Industrial engineering and engineering Management

作者： Y. Cheng F. Tao L. Zhang X. Zhang G.H. Xi D. Zhao School of Automation Science and Electrical Engineering Beihang University Beijing China National Key Laboratory of Vehicular Transmission China North Vehicle Research Institute Beijing China School of Mechanical and Electronic Engineering Wuhan University of Technology Wuhan China Department of Electrical and Computer Engineering University of Michigan Dearborn MI USA

ISBN: (纸本)9781424485017

As a new service-oriented network manufacturing model, cloud manufacturing (CMfg) can accelerate the transformation from production-oriented to service-oriented manufacturing. Study of resource service transaction (RST) is one of the key issues that deciding the practical application of CMfg. In this study, the comprehensive utility models considered the revenue, time, and reliability for the three sides, i.e., resource service provider (RSP), resource service demander (RSD), and resource service agent (Agent) in the RST process in CMfg under the decentralized decision-making condition are first established, respectively. Then the comprehensive utility model for the RST chain (RSTC) of “multiple RSP-one Agent-multiple RSD” under the centralized decision-making condition is proposed and discussed. The existence of utility equilibriums between RSP and Agent, Agent and RSD are proved in the optimal decision of the RSTC under the decentralized decision-making condition.

关键词： Decision making Reliability Manufacturing Biological system modeling Computational modeling Clouds Supply chains

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control performance optimization by convex hull manipulation

Control performance optimization by convex hull manipulation

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IEEE International Workshop on Robotics in Alpe-Adria-Danube Region (RAAD)

作者： Patricia Gróf Péter Baranyi Péter Korondi Cognitive Informatics Research Group Computer and Automation Research Institute Hungary Department of Mechatronics Optics and Engineering Informatics Budapest University슠of슠Technology슠and슠Economics Hungary Department of Telecommunications and Media Informatics Budapest University슠of슠Technology슠and슠Economics Hungary

This paper deals with the topic of qLPV state-space model based control design in which LMIs are used to optimize the multi-objective control performance. In this paper we investigate how the convex hull of the polytopic model influences the control performance of the LMI based control design. We examine these influences through the controller and observer design of the two dimensional aeroelastic wing's example. First we define various TP type polytopic model representations of a wing section whose vertices define different convex hulls. In the second step we investigate how these models change the control performance.

关键词： Delay effects control design Feedback control Robotics and automation Optical control Telecommunication control Informatics Design optimization Limit-cycles control systems

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Adaptive synchronization of fractional-order chaotic systems and parameters identification

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Jilin Daxue Xuebao (Gongxueban)/Journal of Jilin University (engineering and Technology Edition) 2010年第SUPPL.1期40卷 354-359页

作者： Sun, Guang-Hui Wang, Mao Shen, Li-Qun Space Control and Inertial Technology Research Center Harbin Institute of Technology Harbin 150001 China School of Electrical Engineering and Automation Harbin Institute of Technology Harbin 150001 China

This work presents an adaptive synchronization between two different order fractional chaotic systems with unknown parameters. Based on the nonlinear feedback, the proposed adaptive scheme not only can estimate the unknown parameters successfully in certain condition, but also realize the synchronization of chaotic fractional-order system. Taken the fractional liu system and Duffing system as an example, numerical simulation results verify the effectiveness of the proposed scheme.

关键词： Synchronization

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Neural stem cell segmentation using local complex phase information

Neural stem cell segmentation using local complex phase info...

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IEEE International Conference on Image Processing

作者： Taoyi Chen Yong Zhang Changhong Wang Zhenshen Qu Stephen T.C. Wong Department of Control Science and Engineering Harbin Institute of Technology Harbin Heilongjiang China Computer Science Division IBM Almaden Research Center San Jose CA USA Center of Bioengineering and Informatics The Methodist Hospital Research Institute and Department of Radiology Weill Cornell Medical College Methodist Hospital Houston TX USA

Segmentation of neural stem cells is the preliminary step to treat and cure several brain neural diseases. There exist a number of methods to accomplish this task. However, all of these methods suffer from some problems, such as high intensity variation sensitivity, human interaction and high computational complexity. In this paper we proposed a novel edge-detection-based neural stem cell image segmentation algorithm using the local complex phase characteristics. The proposed method is an illumination and contrast invariant measurement of edge significance. Our contributions are that, local weighting summation Gaussian kernel convolution and a new model for phase deviation weighting function are introduced into the proposed model to improve the local phase measurement. In experiments, we show that the proposed method is more accurate and reliable than three existing gradient-based edge detection algorithms and Kovesi's model for neural stem cell image segmentation.

关键词： Image edge detection Image segmentation Stem cells Phase measurement Wavelet transforms Detectors Gabor filters

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Delay-dependent conditions for monotonic convergence of uncertain ILC systems: An LMI approach

Delay-dependent conditions for monotonic convergence of unce...

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IEEE Conference on Decision and control

作者： Deyuan Meng Yingmin Jia Junping Du Fashan Yu Seventh Research Division the Department of Systems and Control Beihang University Beijing China Beijing Key Laboratory of Intelligent Telecommunications Software and Multimedia School of Computer Science and Technology Beijing University of Posts and Telecommunications Beijing China School of Electrical Engineering and Automation Henan Polytechnic University Jiaozuo Henan China

ISBN: (纸本)9781424477456

This paper deals with the iterative learning control (ILC) problem for uncertain time-delay systems (TDS). In order to ensure monotonic convergence of the ILC process, a sufficient condition is developed using an H ∞ -based framework. It shows that under this framework, the convergence condition is enabled to be delay-dependent and have a formulation in terms of linear matrix inequalities (LMIs). Moreover, formulas for the updating law design can be derived by directly solving LMIs. A numerical example is provided to verify that the delay-dependent condition in LMI forms is effective in producing monotonically convergent ILC algorithms.

关键词： Convergence Symmetric matrices Robustness Delay Uncertainty Performance analysis Linear matrix inequalities

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Mode in Output Participation Factors for Linear Systems

Mode in Output Participation Factors for Linear Systems

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American control Conference

作者： Li Sheng Eyad H. Abed Munther A. Hassouneh Huizhong Yang Mohamed S. Saad School of Communication and Control Engineering Jiangnan University 1800 Lihu Rd Wuxi 214122 P.R.China Department of Electrical and Computer Engineering and the Institute for Systems Research University of Maryland College Park MD 20742 USA Institute for Systems Research and the Department of Mechanical Engineering University of Maryland College Park MD 20742 USA Electrical Power and Machines Department Cairo University Cairo Egypt

ISBN: (纸本)9781424474264

The common definition of modal participation factors was intended to provide a measure of participation of modes in states and of states in modes for linear time-invariant (LTI) systems. In this paper, recent work by the authors that revisited this common definition is extended to yield definitions and calculations for quantifying the relative contribution of system modes in system outputs. When the system outputs are simply the system states, the mode-in-output participation factors are found to reduce to the original mode-in-state participation factors. A numerical example is given to illustrate the issues addressed and the results obtained.

关键词： participation factor output(systems) Linear system

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TP model transformation based sliding mode control design for nonlinear systems

TP model transformation based sliding mode control design fo...

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International (EPE-PEMC) Power Electronics and Motion control Conference

作者： Béla Takarics Péter Korondi Péter Baranyi Cognitive Informatics Research Group Computer and Automation Research Institute Budapest Hungary Department of Mechatronics Optics and Engineering Budapest University슠of슠Technology슠and슠Economics Budapest Hungary Department of Telecommunications and Media Informatics Budapest University슠of슠Technology슠and슠Economics Budapest Hungary

The main contribution of this paper is a new sliding mode design for nonlinear systems. This method is based on Tensor Product Model Transformation. It is partially extension and combination of the classical optimal manifold design for linear (or linearized) system and sector sliding mode control. This new approach enables a systematic design and decomposition of optimal sliding sector by the High Order Singular Value Decomposition (HOSVD)-based canonical description of a wide class of nonlinear systems. Two design examples and experimental results of a DSP-controlled single-degree-of-freedom motion-control system are presented.

关键词： Friction Sliding mode control Switches Tensile stress Mathematical model Nonlinear systems

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Effective connectivities of cortical regions for top-down face processing: A Dynamic Causal Modeling study

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Brain research 2010年 1340卷 40-51页

作者： Li, Jun Liu, Jiangang Liang, Jimin Zhang, Hongchuan Zhao, Jizheng Rieth, Cory A. Huber, David E. Li, Wu Shi, Guangming Ai, Lin Tian, Jie Lee, Kang Life Sciences Research Center School of Life Sciences and Technology Xidian University Xi'an 710071 China School of Electronic Engineering Xidian University Xi'an 710071 China School of Computer and Information Technology Beijing Jiaotong University Beijing 100044 China Institute of Automation Chinese Academy of Sciences Beijing 100190 China Developmental Cognitive Neuroscience Laboratory Northwestern University IL United States Department of Neuroimaging Beijing Tiantan Hospital Capital Medical University Beijing 100050 China Department of Psychology University of California San Diego La Jolla CA United States Institute of Child Study University of Toronto Toronto Ont. Canada

To study top-down face processing, the present study used an experimental paradigm in which participants detected non-existent faces in pure noise images. Conventional BOLD signal analysis identified three regions involved in this illusory face detection. These regions included the left orbitofrontal cortex (OFC) in addition to the right fusiform face area (FFA) and right occipital face area (OFA), both of which were previously known to be involved in both top-down and bottom-up processing of faces. We used Dynamic Causal Modeling (DCM) and Bayesian model selection to further analyze the data, revealing both intrinsic and modulatory effective connectivities among these three cortical regions. Specifically, our results support the claim that the orbitofrontal cortex plays a crucial role in the top-down processing of faces by regulating the activities of the occipital face area, and the occipital face area in turn detects the illusory face features in the visual stimuli and then provides this information to the fusiform face area for further analysis. © 2010 Elsevier B.V. All rights reserved.

关键词： Bottom-up processing Dynamic Causal Modeling (DCM) Face processing Orbitofrontal cortex (OFC) Top-down processing

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An ITD based automatic digital modulation recognition algorithm for broadband mobile multimedia communication system

An ITD based automatic digital modulation recognition algori...

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2010 IEEE International Symposium on Broadband Multimedia Systems and Broadcasting, BMSB 2010

作者： Li, Xue Tian, Bin An, Jinkun Wang, Xianbin Wu, Yiyan Yi, Kechu National Laboratory of Information Control 36Th Institute CECT Jiaxing 314001Zhejiang China State Key Labrotory of Intergrated Services Networks Xidian University Xi'an 710071 China Department of Electrical and Computer Engineering University of Western Ontario London ON N6A 5B9 Canada Communications Research Centre 3701 Caring Avenue Ottawa ON K2H 8S2 Canada

ISBN: (纸本)9781424444625

Automatic modulation recognition is extremely important for the receiver design in the broadband multimedia communication system. Based on the intrinsic time-scale decomposition algorithm for feature extraction on which the instantaneous amplitude, phase and frequency is precisely defined, this paper proposed a feature selection algorithm to find the features with high distinguishing capacity and a digital modulation recognition algorithm. Simulation results show that this algorithm is of low complexity and the average recognition accuracy is higher than 94% using only three feature parameters when SNR is above 5dB.

关键词： Feature extraction

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Modeling and identification of a Nuclear reactor with temperature dependent reactivity 10

Modeling and identification of a Nuclear reactor with temper...

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2009 10th European control Conference, ECC 2009

作者： Fazekas, Csaba Gabor, Attila Hangos, Katalin M. Process Control Research Group Computer and Automation Research Institute Budapest Hungary

ISBN: (纸本)9783952417393

A simple dynamic model of a nuclear reactor with temperature dependent reactivity and six groups of neutron emitting nuclei is developed in this paper based on first engineering principles. The proposed model contains the possible minimal number of differential equations and it is capable of describing important dynamic phenomena such as load change transients between day and night periods. Because the model is nonlinear in its parameters, an optimization-based parameter estimation procedure has been applied by using the Nelder-Mead algorithm and measured data from the Paks Nuclear Power Plant. The estimated parameter values fall into physically meaningful ranges and the response of the constructed reactor model shows a good fit to the measurement data. © 2009 EUCA.

关键词： Differential equations

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