检索结果-内蒙古大学图书馆

2007 IEEE International Symposium on Industrial Electronics (ISIE 2007), vol.5

作者： Tao Hong Mo-Yuen Chow Perry Haaland Dylan Wilson Robert Walker Advanced Diagnosis Automation and Control Lab Department of Electrical & Computer Engineering North Carolina State University Raleigh NC USA BD Technologies NC USA

High-Throughput (HT) platforms have been increasingly used in the life science area for diverse bio-chemical experiments. This paper addresses the scheduling of HT platform based experiments under multiple constraints, such as operation constraints, resource constraints and starvation constraints. We use timed transition Petri nets (PN) to model the experimental process with constraints. We first propose the transition variant property of the PN model. We then propose the HCH (Hong-Chow-Haaland) algorithm, which is customized from A{sup}* algorithm, to find a feasible solution. HCH algorithm is more efficient than L1 algorithm and most other A{sup}* extended algorithms in identification of new markings when applied to the transition variant PN. We then applied HCH algorithm to two typical HT processes. The results show that HCH algorithm can be used to find optimal solutions with the time complexity of identifying new markings less than 2% of the L1 algorithm.

关键词： Petri nets Job shop scheduling Scheduling algorithm Humans Processor scheduling Automation USA Councils Resource management Mathematical model Chemical compounds

来源：评论

学校读者我要写书评

暂无评论

The Stability Analysis of the Adaptive Fading Extended Kalman Filter

The Stability Analysis of the Adaptive Fading Extended Kalma...

引用

IEEE Conference on control Technology and Applications (CCTA)

作者： Kwang Hoon Kim Jang Gyu Lee Chan Gook Park Gyu In Jee Department of Electronics Engineering Brain Korea 21 Research Group Konkuk University Seoul South Korea School of Electrical Engineering and Computer Science and Automatic Control Research Center Seoul National University Seoul South Korea School of Mechanical and Aerospace Engineering and Institute of Advanced Aerospace Technology Seoul National University Seoul South Korea Department of Electronics Engineering Konkuk University Seoul South Korea

The well-known conventional Kalman filter gives the optimal solution but requires an accurate system model and exact stochastic information. Thus, the Kalman filter with incomplete information may be degraded or even diverged. In a number of practical situations, the system model and the stochastic information are incomplete. To solve this problem, a new adaptive fading Kalman filter (AFKF) using the forgetting factor has recently been proposed. This paper extends the AFKF to nonlinear system models to obtain an adaptive fading extended Kalman filter (AFEKF). The forgetting factor is generated from the ratio between the calculated innovation covariance and the estimated innovation covariance. Based on the analysis result of Reif for the EKF, the stability of the AFEKF is also analyzed.

关键词： Stability analysis Fading Stochastic systems Nonlinear equations Nonlinear systems Information filtering Information filters Adaptive filters control systems Degradation

来源：评论

学校读者我要写书评

暂无评论

A control-design-based solution to robotic ecology: Autonomy of achieving cooperative behavior from a high-level astronaut command

A control-design-based solution to robotic ecology: Autonomy...

引用

作者： Wang, Jing Qu, Zhihua Ihlefeld, Curtis M. Hull, Richard A. Department of Electrical and Computer Engineering University of Central Florida Orlando FL 32816 United States Kennedy Space Center FL 32899 United States Lockheed Martin Missiles and Fire Control 5600 Sand Lake Rd. MP-450 Orlando FL 32819 United States School of Electrical and Computer Science University of Central Florida IEEE AIAA University of Central Florida Department of Electrical and Computer Engineering National Aeronautics and Space Administration Kennedy Space CenterKennedy Space Center Applied Physics Lab. Advanced Concepts Business Unit Science Applications International Corporation SAIC IEEE Control System Society

In this paper, we propose a cooperative control strategy for a group of robotic vehicles to achieve the specified task issued from a high-level astronaut command. The problem is mathematically formulated as designing the cooperative control for a general class of multiple-input-multiple-output (MIMO) dynamical systems in canonical form with arbitrary but finite relative degrees such that the outputs of the overall system converge to the explicitly given steady state. The proposed cooperative control for individual vehicle only need to use the sensed and communicated outputs information from its local neighboring vehicles. No fixed leader and time-invariant communication networks are assumed among vehicles. Particularly, a set of less-restrictive conditions on the connectivity of the sensor/communication networks are established, under which it is rigorously proven by using the newly found nice properties of the convergence of sequences of row stochastic matrices that the cooperative objective of the overall system can be achieved. Simulation results for a group of vehicles achieving a target and surrounding a specified object in formation are provided to support the proposed approach in this paper.

关键词： Robotics

来源：评论

学校读者我要写书评

暂无评论

electrical stimuli capsule for control moving direction at the small intestine

Electrical stimuli capsule for control moving direction at t...

引用

4th IASTED International Conference on Biomedical engineering

作者： Woo, S.H. Jang, J.Y. Jung, E.S. Lee, J.H. Moon, Y.K. Kim, T.W. Won, C.H. Choi, H.C. Cho, J.H. School of Electronic Engineering and Computer Science Kyungpook National University College of Veterinary Medicine Dept. of Physiology Kynugpook National University Department of Computer Control and Electrical Engineering Kyungil University Advanced Research Center for Recovery of Human Sensibility Kyungpook National University Engineering Building 10 Kyungpook National University 1370 Sankyuk-dong Buk-gu Daegu 702-701 Korea Republic of

ISBN: (纸本)0889865787

Recently, a capsule endoscope has been developed to observe images from the inside of intestine. Such a capsule endoscope does not have locomotion or hold method. To get proper diagnosis and medication, it is necessary to control the capsule from outside to guide locomotion. The designed and implemented capsule has feasibility to contract the small intestine by electrical stimuli through the electrodes. When the small intestine is contracted by electrical stimuli, the capsule can move to opposite direction, which means the capsule can go up and down in the small intestine. The implemented stimuli capsule always monitors excessive energy transmission and automatically shuts down the electrical stimuli to make it more secure. Additionally, the stimuli capsule goes on standby mode to save the battery, and it can be reset by comparator circuit which is connected to stimulus electrodes. To verify the design and implement the stimuli capsule, in-vitro experiments were performed with pig's small intestine.

关键词： Biomedical engineering

来源：评论

学校读者我要写书评

暂无评论

Design and implementation of the telemetry capsule for measuring of electrogastrography

Design and implementation of the telemetry capsule for measu...

引用

4th IASTED International Conference on Biomedical engineering

作者： Jung, E.S. Lee, J.H. Woo, S.H. Yoon, K.W. Jang, J.H. Kim, M.K. Moon, Y.K. Kim, T.W. Won, C.H. Choi, H.C. Cho, J.H. School of Electronic Engineering and Computer Science Kyungpook National University College of Veterinary Medicine Dept. of Physiology Kynugpook National University Department of Computer Control and Electrical Engineering Kyungil University Advanced Research Center for Recovery of Human Sensibility Kyungpook National University Engineering Building 10 Kyungpook National University 1370 Sankyuk-dong Buk-gu Daegu 702-701 Korea Republic of

ISBN: (纸本)0889865787

Electrogastrography (EGG) is a significant reference of the myoelectric activity of the gastrointestinal tract and indicates whether it has a disease or not. There have been numerous studies of the myoelectric activity in a stomach, but only a few studies of the intestines because of the difficulty of measurement in the intestines. Recently, the technology of the biotelemetry capsule for measurement of internal information in the human digestive tract has been developed. In the current study, an EGG telemetry system using the developed biotelemetry technology was designed and implemented for measuring EGG in intestines. The EGG capsule converts the acquired EGG value to digital data, which is transmitted from the capsule to the external receiver. The performance of the telemetry capsule for the EGG monitoring in the gastrointestinal tract was verified by in-vitro animal experiments. From the experiment, it was verified that the EGG telemetry capsule can measures a slow wave in intestines.

关键词： Biomedical engineering

来源：评论

学校读者我要写书评

暂无评论

DSP implementation of an efficient bit allocation algorithm for indoor wireless multicarrier systems

DSP implementation of an efficient bit allocation algorithm ...

引用

IEEE Conference on Wireless Communications and Networking

作者： M. Cudnoch A.M. Wyglinski F. Labeau Centre for Advanced Systems and Technologies in Communications (SYTACom) Department of Electrical and Computer Engineering McGill University Montreal QUE Canada Information and Telecommunication Technology Center University of Kansas Lawrence KS USA

来源：评论

学校读者我要写书评

暂无评论

Experiment and Simulation Studies of Current Distribution in Paralleled Thyristors

Experiment and Simulation Studies of Current Distribution in...

引用

Conference Record of the IEEE Industry Applications Society Annual Meeting (IAS)

作者： J. Wu Z. Wang P. R. Palmer A. T. Bryant D. Remy E. Santi J. Hudgins Department of Engineering Centre for Advanced Photonics and Electronics University of Cambridge Cambridge UK Department of Engineering University of Warwick Coventry UK Alstom Power Electrical and Control Systems 3 avenue des Trois Chenes Belfort Cedex France Electrical and Computer Engineering University of South Carolina Swearingen Engineering Center Columbia SC USA Department of Electrical Engineering University of Nebraska-Lincoln Lincoln NE USA

This paper presents the problems regarding to the behaviour of current distribution among paralleled thyristors. They are addressed with the experiment of high current transformer-rectifiers. The system is further implemented in the Power System Blockset, now SimPowerSystem, in MAT-LAB/Simulink. The Fourier-series-based model is employed to study both the system performance and the device internal behaviour. The experiment and simulation reported in this paper offer valuable insight into the parallel operation of thyristors

关键词： Current distribution Thyristors Voltage Power system modeling Power engineering and energy MATLAB Circuits Mathematical model Temperature Power system simulation

来源：评论

学校读者我要写书评

暂无评论

A novel method to determine the kind and rating of power quality solutions

A novel method to determine the kind and rating of power qua...

引用

2005 IEEE Russia Power Tech, PowerTech

作者： Won, Dong-Jun Chung, Il-Yop Ahn, Seon-Ju Moon, Seung-Il IEEE Advanced Power Technologies Center Department of Electrical Engineering University of Washington Seattle WA 98195-2500 United States Department of Electrical Engineering Korea University Seoul 136-701 Korea Republic of School of Electrical Engineering and Computer Science Seoul National University Seoul 151-742 Korea Republic of

ISBN: (纸本)9781424418749

This paper proposes a novel method on determining the kind and rating of power quality solutions. To determine the kind of solution, event cause and direction are utilized. According to the event cause and direction, adequate kind of solution is determined for effective compensation. To rate the required capacity of solution, the concept of lost energy is adopted. Lost voltage, lost power and lost energy are calculated and the rating of solution is determined to compensate specific event. The rating method which utilizes the result of stochastic diagnosis is also proposed. Power quality index such as CP95 is adopted for solution suggestion. The method developed in this paper is applied to the test system and proved to be useful for enhancing the power quality of customer system. It can provide the customers the information about what is a proper and costeffective solution among various compensating devices.

关键词： Power quality

来源：评论

学校读者我要写书评

暂无评论

A New Algorithm to Find the Optimal Numbers and Locations of Power Quality Monitors

A New Algorithm to Find the Optimal Numbers and Locations of...

引用

2005 IEEE Russia Power Tech, PowerTech

作者： Won, Dong-Jun Ahn, Seon-Ju Chung, Il-Yop Moon, Seung-Il IEEE Advanced Power Technologies Center Department of Electrical Engineering University of Washington Seattle WA 98195-2500 United States Department of Electrical Engineering Korea University Seoul 136-701 Korea Republic of School of Electrical Engineering and Computer Science Seoul National University Seoul 151-742 Korea Republic of

ISBN: (纸本)9781424418749

This paper proposes monitor positioning algorithm which determines the optimal number of monitors and their locations. The bus incidence matrix is modified using monitor locations. The principles of monitor positioning are suggested and the weighting factors of each component are defined following these principles. Ambiguity indices are newly suggested to evaluate the monitor locations in terms of topological ambiguity. Finally, the overall algorithm for monitor positioning is developed and applied to IEEE 37 node test feeder. It realizes the expert's knowledge on monitor positioning into sophisticated automatic computing algorithm.

关键词： Power quality

来源：评论

学校读者我要写书评

暂无评论

ONE-TO-ONE TECHNOLOGY-ENHANCED LEARNING: AN OPPORTUNITY FOR GLOBAL RESEARCH COLLABORATION

引用

Research and Practice in Technology Enhanced Learning 2006年第1期1卷 3-29页

作者： TAK-WAI CHAN JEREMY ROSCHELLE SHERRY HSI KINSHUK MIKE SHARPLES TOM BROWN CHARLES PATTON JOHN CHERNIAVSKY ROY PEA CATHIE NORRIS ELLIOT SOLOWAY NICOLAS BALACHEFF MARLENE SCARDAMALIA PIERRE DILLENBOURG CHEE-KIT LOOI MARCELO MILRAD ULRICH HOPPE Research Center for Science and Technology for Learning National Central University 300 Jhongda Road Jhongli City 32001 Taiwan ROC Center for Technology in Learning SRI International 333 Ravenswood Ave BN-376 Menlo Park California 94025 USA Center for Learning and Teaching The Exploratorium 3601 Lyon Street San Francisco California 94123 USA Advanced Learning Technologies Research Centre Massey University Private Bag 11-222 Palmerston North New Zealand Learning Sciences Research Institute Nottingham University Jubilee Campus Wollaton Road Nottingham NG8 1BB UK University of Pretoria Telematic Learning & Education Innovation Lynnwood Road Hillcrest Pretoria South Africa 0002 South Africa National Science Foundation 4201 Wilson Boulevard Arlington Virginia 22230 USA Stanford Center for Innovations in Learning Stanford University Wallenberg Hall Building 160 450 Serra Mall Stanford CA 94305-205 USA Department of Cognition and Technology University of North Texas Matthews Hall 316-D PO Box 311337 Denton TX 76203-1337 USA Department of Electrical Engineering and Computer Science University of Michigan Ann Arbor MI 48109 USA Laboratoire Leibniz 46 Avenue Félix Viallet 38031 Grenoble Cedex France Institute for Knowledge Innovation and Technology OISE/University of Toronto 252 Bloor Street West Toronto Ontario M5S 1V6 Canada Swiss Federal Institute of Technology Ecole Polytechnique Fédérale de Lausanne 1015 Lausanne Switzerland Learning Sciences Lab National Institute of Education Nanyang Technological University 1 Nanyang Walk Singapore 637616 Singapore Center for Learning and Knowledge Technologies Växjö University MSI Växjö University Vejdes plats 6 och 7 351 95 Växjö Sweden Institute for Computer Science and Interactive Systems University Duisburg-Essen Building LF Lotharstr. 63/65 47048 Duisburg Germany

Over the next 10 years, we anticipate that personal, portable, wirelessly-networked technologies will become ubiquitous in the lives of learners — indeed, in many countries, this is already a reality. We see that ready-to-hand access creates the potential for a new phase in the evolution of technology-enhanced learning (TEL), characterized by "seamless learning spaces" and marked by continuity of the learning experience across different scenarios (or environments), and emerging from the availability of one device or more per student ("one-to-one"). One-to-one TEL has the potential to "cross the chasm" from early adopters conducting isolated design studies to adoption-based research and widespread implementation, with the help of research and evaluation that gives attention to the digital divide and other potentially negative consequences of pervasive computing. We describe technology-enhanced learning and the affordances of one-to-one computing and outline a research agenda, including the risks and challenges of reaching scale. We reflect upon how this compares with prior patterns of technology innovation and diffusion. We also introduce a community, called "G1:1," that brings together leaders of major research laboratories and one-to-one TEL projects. We share a vision of global research, inviting other research groups to collaborate in ongoing activities.

关键词： Technology-enhanced learning research collaboration pervasive computing wireless technologies

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：