检索结果-内蒙古大学图书馆

13th International Conference on Civil, Structural and Environmental engineering Computing, CC 2011

作者： Abdulkareem, M. Mahfouf, M. Theilliol, D. Department of Automatic Control and Systems Engineering University of Sheffield United Kingdom Faculty of Science and Technology Nancy University France

ISBN: (纸本)9781905088454

The advantage of the well-known kinematic form-finding method of tensegrity structures is its simplicity and possibility to include length constraints on structural members. The stability of the structures obtained using this method is, however, not guaranteed because it takes no account of the forces in structural members. In this paper, it will be shown that this method inherently assume that the magnitudes of force-to-length ratios in all cables and bars are equal. Thus, an approach for obtaining the optimal set of force-to-length ratios for a given tensegrity configuration that can be used with the kinematic form-finding methods for tensegrity structures for improved stability will be presented. The new approach will be described with an example. © Civil-Comp Press, 2011.

关键词： Nonlinear programming

来源：评论

学校读者我要写书评

暂无评论

Analysis for jump phenomena in random response of a Duffing oscillator using continuous wavelet transform (2nd report, analysis by complex wavelet transform)

Analysis for jump phenomena in random response of a Duffing ...

引用

作者： Tamura, Shinji Funakoshi, Yoshifumi Kato, Yuto Department of Electronic and Control Systems Engineering Interdisciplinary Faculty of Science and Engineering Shimane University 1060 Nishikawatsu-cho Matsue-shi Shimane 690-8504 Japan

Stochastic jump phenomena in the random responses of a Duffing oscillator subjected to narrow band excitation are investigated. The stochastic jump phenomena correspond to the existence of multiple stationary responses, which differ in phase to the excitation. In our previous paper, the product of each real wavelet of response and excitation is proposed as the phase of each frequency component. But taking the moving average of the product over one period is necessary because of pulsation. In this paper, the product of the complex wavelet transform of the response and the complex conjugate of that of the excitation is used to evaluate phase of each frequency component. The central value of unstable region of the phase in the frequency response function is used as the center of the range of the principal value of the complex argument, and the value and bounds of unstable region are taken as the threshold for phase obtained from the wavelet transforms. Using this range of principal value of complex argument and thresholds, two states of the response are successfully identified, as well as the previously proposed criterion using real wavelet transform. © 2011 The Japan Society of Mechanical Engineers.

关键词： Wavelet transforms

来源：评论

学校读者我要写书评

暂无评论

Comparison Study between a Simple Sensorless Method and Adaptive Observer for DTC-SVM Five-Phase Induction Motor Drive

Comparison Study between a Simple Sensorless Method and Adap...

引用

IEEE Interantional Conference on Industrial Technology

作者： B. S. Khaldi H. Abu-Rub A. Iqbal R. Kennel M. O. Mahmoudi D. Boukhetala Department of Electrical Engineering Faculty of Science and Engineering Djelfa University Algeria Department of Electrical & Computer Engineering Texas A&M University at Qatar Doha Qatar Department of Electrical Engineering College of Engineering Qatar University Qatar Institute for Electrical Drive Systems and Power Electronics Technische Universitat Munchen Munich Germany Laboratory of Process Control National Polytechnic School Algiers Algeria

ISBN: (纸本)9781467303408;9781467303422

This paper highlights the differences between a simple sensorless method and an adaptive flux and speed observer for a five-phase induction motor control. The drive is controlled using space vector modulation direct torque control (DTC- SVM) approach. The power measurement used for speed computation is simple, with a minimum processor time and memory, and relatively robust against parameters variation when compared with the adaptive observer based approach. Simulation verification and real time implementation are presented in the paper.

关键词： direct torque control (DTC) space vector modulation (SVM) Five-phase induction machine speed sensorless power measurement adaptive observer

来源：评论

学校读者我要写书评

暂无评论

Automatic spike detection based on real-time multi-channel template

Automatic spike detection based on real-time multi-channel t...

引用

2011 4th International Conference on Biomedical engineering and Informatics, BMEI 2011

作者： Ji, Zhanfeng Wang, Xingyu Sugi, Takenao Goto, Satoru Nakamura, Masatoshi Key Laboratory of Advanced Control and Optimization for Chemical Processes East China University of Science and Technology Ministry of Education Shanghai China Department of Advanced Systems Control Engineering Saga University Saga Japan Research Institute of Systems Control Saga University Saga Japan

ISBN: (纸本)9781424493524

Automatic EEG spike detection provide valuable information for diagnosis of epilepsy. In the past 30 years, a number of algorithms were proposed. However, the basic idea of most algorithms is to identify spike activities. We have developed an algorithm based on identify non-spike activities for off-line analysis. In this paper, we improved the algorithm for online application using real-time template. Template method is a typical spike detection method. It was not widely employed because of the difficulty of making template. Our results suggested that multi-channel template is meaningful and effective for real-time detection. Spike activities can be detected with a delay of about 2 s. We also designed an simple user-friendly monitor interface for monitor and review spike events in real-time. © 2011 IEEE.

关键词： multi-channel template real-time spike detection Spike spike spikes jigs(templates) Real time algorithms MONITOR analysis of flowline

来源：评论

学校读者我要写书评

暂无评论

Remote control of robot arms via network by force-free control followed template matching

Remote control of robot arms via network by force-free contr...

引用

50th Annual Conference on Society of Instrument and control Engineers, SICE 2011

作者： Pallegedara, Achala Matsuda, Yoshitaka Matsumoto, Takeo Tsukamoto, Kenta Egashira, Naruto Goto, Satoru Department of Science and Advanced Technology Graduate School of Science and Engineering Saga University Saga 840-8502 Japan Department of Advanced Technology Fusion Graduate School of Science and Engineering Saga University Saga 840-8502 Japan Department of Control and Information Systems Technology Kurume National College of Technology Fukuoka 830-8555 Japan

ISBN: (纸本)9784907764395

Continuous advancements and rapid developments of electronics, computing, network and web technologies have been much concerned in recent period of time. The emerging technologies including teleoperation, communication and control via web, visual servo control and so forth, have induced high motivation and demand towards the researchers who belong to conventional control and robotics. In this research, teleoperation and template matching techniques are applied to control the motion of industrial robot arms remotely via network. The system has two motion control behaviors;rough motion of the robot arm is handled by teleoperation technique and accurate motion is governed by visual template matching. Two behaviors are switched, from one to another appropriately according to the desired motion. The effectiveness of the proposed methodology is verified by the experimental results. © 2011 SICE.

关键词： Remote control

来源：评论

学校读者我要写书评

暂无评论

Estimation of thermal constriction resistance for simple thermal network analysis of electronic components

Estimation of thermal constriction resistance for simple the...

引用

2011 6th International Microsystems, Packaging, Assembly and Circuits Technology Conference, IMPACT 2011

作者： Tomimura, Toshio Ishizuka, Masaru Department of Advanced Mechanical Systems Graduate School of Science and Technology Kumamoto University 2-39-1 Kurokami Kumamoto 860-8555 Japan Department of Mechanical Systems Engineering Faculty of Engineering Toyama Prefectural University 5180 Kurokawa Imizu 939-0398 Japan

ISBN: (纸本)9781457713880

Related to the thermal contact resistance, lots of studies have been done on the thermal constriction resistance, which is a measure of the additional temperature drop at the contact interface [1]. And almost all of those studies have been conducted based on the two-dimensional cylindrical coordinates system. In the same way, the additional thermal resistance associated with the geometrical constriction is often encountered in the electronic components like relay circuits, the printed circuit boards, and so on. In these cases, however, heat is frequently transferred through a thin and narrow passage, which should be treated by two-dimensional rectangular coordinates system. © 2011 IEEE.

关键词： Printed circuit boards

来源：评论

学校读者我要写书评

暂无评论

Development of visual odometry component by using omni-directional camera

Development of visual odometry component by using omni-direc...

引用

50th Annual Conference on Society of Instrument and control Engineers, SICE 2011

作者： Yokota, Tadayuki Watanabe, Kajiro Kobayashi, Kazuyuki Kurihara, Yousuke Department of Systems and Control Engineering Faculty of Engineering Hosei University Tokyo 184-8584 Japan Faculty of Engineering Hosei University 3-7-2 Kajinocho Koganei Tokyo 184-8584 Japan Faculty of Science and Technology Seikei University Kichijoji-Kitamachi 3 Musashino Tokyo 180-8633 Japan

This paper describes a new visual odometry component for a mobile robot operating in an outdoor environment such as Real World Robot Challenge (RWRC), based on omni-directional camera images. The validity of the propo... 详细信息

ISBN: (纸本)9784907764395

关键词： Mobile robots

来源：评论

学校读者我要写书评

暂无评论

Study of visible light communication system using RGB LED lights

Study of visible light communication system using RGB LED li...

引用

50th Annual Conference on Society of Instrument and control Engineers, SICE 2011

作者： Komiyama, Takuto Kobayashi, Kazuyuki Watanabe, Kajiro Ohkubo, Tomoyuki Kurihara, Yosuke Department of Systems and Control Engineering Faculty of Engineering Hosei University Tokyo 184-8584 Japan Faculty of Engineering Hosei University 3-7-2 Kajinocho Koganei Tokyo 184-8584 Japan Faculty of Science and Technology Seikei University Kichijoji-Kitamachi 3 Musashino Tokyo 180-8633 Japan

ISBN: (纸本)9784907764395

In recent years, visible light communication is attracting growing interest for wireless communications since it is low-cost and easily maintained by using high-speed switchable LEDs. We have developed a prototype to demonstrate wireless visible light communications using RGB LEDs as both transmitter and light source. The RGB LEDs enable parallel signal communications, and a PSoC microcontroller is used to control them, thus significantly reducing the need for extra circuits and allowing rapid modification of communication software. A prototype system was developed and its validity was confirmed. © 2011 SICE.

关键词： Visible light communication

来源：评论

学校读者我要写书评

暂无评论

Sliding mode control for linear systems with time-varying input and state delays

引用

Circuits, systems, and Signal Processing 2011年第3期30卷 629-641页

作者： Xia, Yuanqing Yang, Hongjiu Fu, Mengyin Shi, Peng Department of Automatic Control Beijing Institute of Technology Beijing 100081 China Faculty of Advanced Technology University of Glamorgan Pontypridd CF37 1DL United Kingdom School of Engineering and Science Victoria University PO Box 14428 Melbourne VIC 8001 Australia

This paper deals with a sliding mode control for linear systems with input and state time-varying delays. Two different time delays are considered for the sliding mode control of a continuous linear system. Delay-dependent sufficient conditions are given for the existence of sliding manifolds in terms of linear matrix inequalities. A reaching motion controller is also proposed for such systems by means of both reaching law and inequality approach. An inverted pendulum system is utilized to illustrate the effectiveness of the developed techniques. © 2010 Springer science+Business Media, LLC.

关键词： Linear matrix inequalities

来源：评论

学校读者我要写书评

暂无评论

Mitigating Voltage Sags Due to DOL Starting of Three Phase Asynchronous Motors Using Dynamic Voltage Restorer (DVR)

Mitigating Voltage Sags Due to DOL Starting of Three Phase A...

引用

IEEE PES Transmission and Distribution Conference and Exposition

作者： Bach Q. Khanh J. Lian B. Ramachandran S. Srivastava D. Cartes Electric Power Systems Department Electrical Engineering Faculty Hanoi University of Science and Technology 1 Dai Co Viet Rd. Hanoi Vietnam Center for Advanced Power Systems Institute for Energy Systems Economics and Sustainability Florida State University 2000 Levy Ave Tallahassee FL- 32310 USA Center for Advanced Power Systems Institute for Energy Systems Economics and Sustainability Florida State University 2000 Levy Ave Tallahassee FL-32310 USA

ISBN: (纸本)9781467319348

Voltage sags caused by starting large asynchronous motors, especially in industrial distribution system have huge impacts on system power quality. The paper analyses and proposes an extended application of custom power devices using dynamic voltage restorer for mitigating voltage sags due to the direct-on-line (DOL) starting of asynchronous motors in industrial distribution system. In the paper, different control strategies used for custom power devices are analyzed and an effective method is proposed. A test system is simulated in Matlab/Simulink with different DVR configurations that proves the effectiveness and robustness of the proposed control strategy with dynamic voltage restorer for voltage sag mitigation. The results show that voltage sags are totally compensated.

关键词： Voltage sags Dynamic voltage restorer Custom power devices Power quality.

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：