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11th International Conference on Electrical Machines and Systems

作者： Young Jo Kim Hyoung Seok Kang Young Seok Kim Department of Computer Aided Control Yuhan CollegeKorea Department of Electrical Engineering Inha UniversityKorea

In this paper,the sensorless control of the interior permanent magnet synchronous motors using the sliding mode and the binary observers are ***,the structure of the above observers only uses the voltage *** the parameters of the dynamic equation such as machine inertia or viscosity friction coefficient are not well known and these values can be easily changed during normal operation,there are many restrictions in the actual *** order to estimate the rotor speed and position,the Lypunov function is *** performances of each observers are confirmed by the experiments

关键词： IPMSM A Sensorless Speed control of an IPMSM Motor using the Observers with the Adaptive Structure

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A distributed dynamic model of mobile sensor network

A distributed dynamic model of mobile sensor network

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International Conference on Machine Learning and Cybernetics (ICMLC)

作者： Long Zhao Li Peng Jindong Tang College of Communication and Control Engineering Jiangnan University Wuxi China Department of Electrical and Computer Engineering Michigan Technological University MI

Based on the located information and graph theory, a distributed sensor network model is introduced. The relationship between data transmission and fusion between nodes are described with Delaunay triangulation. And Voronoi diagrams have been used in the description of coverage region of nodes. With the model, disadvantages of existing located system based on a fixed infrastructure could be overcome.

关键词： Robot sensing systems Robots Robot kinematics Mobile communication Mobile computing Vehicles Wireless sensor networks

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Adaptive Digital Video Transmission in MIMO Systems

Adaptive Digital Video Transmission in MIMO Systems

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International Symposium on Intelligent Information Technology Application, IITA

作者： Jia-Chyi Wu Chi-Min Li Kuo-Hsean Chen Department of Communications Navigation and Control Engineering College of Electrical Engineering and Computer Science National Taiwan Ocean University Keelung Taiwan

Under limited channel capacity condition, this study investigates a combined source and channel coding algorithm providing a uniform video transmission rate to achieve better system performance in wireless MIMO systems. In the proposed algorithm, we applied MPEG2 video source coding scheme with convolutional channel coding as well as space-time block coding techniques, associated with BPSK/QPSK modulation method, to improve video transmission performance. The proposed algorithm assigned rates to MPEG2 source code and convolutional channel code, combined with space-time block coding schemes based upon the feedback information from performance control unit (PCU) under channel capacity limitation, which ensures the given system can achieve better performance compared to a conventional system.

关键词： MIMO Channel capacity Channel coding Convolutional codes Block codes System performance Source coding Binary phase shift keying Quadrature phase shift keying Modulation coding

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Fast Cascading Replication Strategy for Data Grid

Fast Cascading Replication Strategy for Data Grid

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International Conference on computer Science and Software engineering

作者： Liang Hong Qi Xue-dong Li Xia Li Zhen Wang Wen-xing College of Computer and Communication Engineering China University of Petroleum Dongying Shandong China College of Information and Control Engineering China University of Petroleum Dongying Shandong China

ISBN: (纸本)9781424439027

More and more large amounts of data shared with researchers and workstations worldwide are generated by scientific experiments and engineering applications. High performance grids aim at facilitating the distribution of such data to geographically remote places. For high performance data grids where users require remote access to large files, dynamic replication is an efficient method to improve performance. In this paper, Fast Cascading, a new dynamic replication algorithm, is proposed for the multi-tier Data Grid. The simulation results obtained by Simulator OptorSim which has been modified show that this algorithm can reduce the average response time of data access greatly for random access pattern compared with other algorithms,such as Fast Spread, LRU and Economy-Zipf dynamic replication strategy, and the gain increases with the number of jobs submitted.

关键词： Grid computing Reaction Time Science—Experiments cascades cascades remote access grids Simulation results Replication Fasting jobs Grid Gain HIGH-PERFORMANCE

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Dynamic reconfiguration for shipboard power system using multi-agent system

Dynamic reconfiguration for shipboard power system using mul...

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IEEE General Meeting Power& Energy Society

作者： James A. Momoh Yan Xia Keisha C. Alfred Center for Energy System and Control CESaC Department of Electrical and Computer Engineering Howard University College of Medicine WA USA Center for Energy System and Control CESaC Department of Electrical Engineering Howard University College of Medicine WA USA

Survivability and reliability are critical for the operation of shipboard power system both in normal and damage conditions. This paper presents a novel dynamic reconfiguration approach for shipboard power system by using multi-agent system. With the similar topology of the shipboard power system, the multi-agent system is generalized to constraint satisfaction problem (CSP). The environment- reactive rules-agents (ERA) approach, which is multi-agent oriented, is used to support the organization formation behavior in dynamic reconfiguration. The effectiveness of the proposed approach is illustrated by test results in a reduced shipboard power system.

关键词： Power system dynamics Power systems Multiagent systems Barium control systems Marine vehicles Electrical engineering

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Study of tumor molecular diagnosis model based on artificial neural network with gene expression profile

Study of tumor molecular diagnosis model based on artificial...

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Congress on Evolutionary Computation

作者： Xiaogang Ruan Jinlian Wang Hui Li Xiaoming Li College of Electronic Information and Control Engineering Beijing University of Technology China College of Computer Science Beijing University of Technology China Lang Fang Normal University China

We introduce a method for modeling cancer diagnosis at the molecular level using a Chinese microarray gastric cancer dataset. The method combines an artificial neural network with a decision tree that is intended to precede standard techniques, such as classification, and enhance their performance and ability to detect cancer genes. First, we used the relief algorithm to select the featured genes that could unravel cancer characteristics out of high dimensional data. Then, an artificial neural network was employed to find the biomarker subsets with the best classification performance for distinguishing cancerous tissues and their counterparts. Next a decision tree expression was used to extract rules subsets from these biomarker sets. Rules induced from the best performance decision tree, in which the branches denote the level of gene expression, were interpreted as a diagnostic model by using previous biological knowledge. Finally, we obtained a gastric cancer diagnosis model for Chinese patients. The results show that using the Chinese gastric biomarker genes with the diagnostic model provides more instruction in biological experiments and clinical diagnosis reference than previous methods.

关键词： Cancer Classification algorithms Decision trees Artificial neural networks Training Biological system modeling Gene expression

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ESTIMATION OF FATIGUE DAMAGE FOR AN AUSTENITIC STAINLESS STEEL (SUS304) USING A PANCAKE TYPE COIL

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AIP Conference Proceedings 2008年第1期975卷 1244-1251页

作者： M. Oka Y. Tsuchida S. Nagato T. Yakushiji M. Enokizono aDepartment of Computer and Control Engineering Oita National College of Technology 1666 Maki Oita 870‐0152 Japan bDepartment of Electrical and Electronic Engineering Faculty of Engineering Oita University 700 Dannoharu Oita 870‐1192 Japan cDepartment of Mechanical Engineering Oita National College of Technology 1666 Maki Oita 870‐0152 Japan

There are some fatigue damage estimation methods of an austenitic stainless steel that uses martensitic transformation. For instance, those are the remanent magnetization method, the excitation method, and so on. Those two methods are researched also in our laboratory now. In the remanent magnetization method, it is well known that the relationship between fatigue damage and the remanent magnetization is simple, clear, and reproducible. However, this method has the disadvantage to need a special magnetizer. Then, this method cannot be easily used at the job site such as the factory. On the other hand, as the special magnetizer is unnecessary, the excitation method can be easily used at the job site. But, this method has some disadvantages shown as follows. For instance, the output signal of this method is small. And the surface state of the specimen strongly influences the noise component of the output signal. It is well known that the inductance of a pancake type coil put on the metallic specimen changes according to the electromagnetic properties of the metallic specimen. In this paper, the method of evaluation of fatigue damage of an austenitic stainless steel (SUS304) by using a change of an inductance of a pancake type coil is shown. In addition, the fatigue evaluation performance of this method is described.

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Dynamic range expansion amplifier to measure the slow wave signal from the intestine by telemetry capsule

Dynamic range expansion amplifier to measure the slow wave s...

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IEEE/RAS-EMBS International Conference on Biomedical Robotics and Biomechatronics (BioRob)

作者： S. H. Woo T. W. Kim M. U. D. Zia Q. Wei E. U. Chung M. W. Kim J. W. Lee C. H. Won J. H. Cho School of Electronic Engineering and Computer Science Kyungpook National University College of Veterinary Medicine Department of physiology Kyungpook National University Medical & Biological Engineering Kyungpook National University Department of Computer Control & Electrical Engineering Kyung Hee University

Recently, various capsule endoscope systems have been developed, and it is possible measure various bio signal from the human to diagnosis a disease. There have been numerous studies of the myoelectric activity in a stomach, but only a few studies of the small intestines, because, there was no way to measure the signal by non-invasive method. Therefore, it is necessary to research myoelectric measurable telemetry capsule. In this paper, main focuses are implement swallowable telemetry capsule, and enough working time for future clinical experiments. The capsule use dynamic range expansion technique to reduce size of the amplifier, and reduce average power consumption as 3.6 mW; therefore, the capsule can use small batteries, that could be implemented as swallowable size. The capsule is verified by in-vitro experiment, and it amplifies the signal properly.

关键词： Dynamic range Intestines Telemetry Endoscopes Humans Diseases Stomach Battery charge measurement Power amplifiers Energy consumption

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Research of key technologies in a Windows CE-based monitoring and control system

Research of key technologies in a Windows CE-based monitorin...

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IEEE Conference on Industrial Electronics and Applications (ICIEA)

作者： Jianmin Duan Fan Lin Zhen Liu College of Electronic Information & Control Engineering Beijing University of Technology Beijing China School of Computer Science Beijing University of Posts and Telecommunications Beijing China

This paper describes a Windows CE-based intelligent system that integrates control and monitoring in one platform. The overall structure of the system is given and some techniques used inside the customization and transplantation of the Windows CE OS are introduced as well. These key techniques include development and transplantation of device drivers in Windows CE, the realization of preserving registry data when power off, the key points of building a special-purpose OS, and the realization of the bootloader. We have designed a temperature control and monitoring system for a heat furnace based on this embedded platform, and the results demonstrate the benefits of using this control solution.

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Locational Marginal Pricing for real and reactive power

Locational Marginal Pricing for real and reactive power

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IEEE General Meeting Power& Energy Society

作者： James A. Momoh Yan Xia Garfield D. Boswell Center for Energy Systems and Control CESaC and at the Department of Electrical and Computer Engineering ECE Howard University College of Medicine WA USA Center for Energy Systems and Control CESaC Howard University College of Medicine WA USA ECE Department Howard University College of Medicine WA USA

The locational marginal prices (LMPs) for real and reactive power is calculated with the framework of full AC optimal power flow (OPF). The production cost of reactive power from various generation sources including generators and reactive compensators was integrated in the objective function with operation constraints. Interior point method combined branch and bound was employed to solve the OPF problem with discrete variables. The decomposition of LMP into three components of energy reference, network loss and congestion are computed. The calculation of LMP for real and reactive power at each bus was tested using an IEEE 30-bus system model.

关键词： Reactive power Capacitors Generators Production Load flow Optimization Programming

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