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A single layer zero skew clock routing in X architecture

Science in China(Series F) 2009年第8期52卷 1466-1475页

作者： SHEN WeiXiang CAI YiCi HONG XianLong HU Jiang LU Bing Electronic Design Automation Laboratory Departmeat of Computer Science and Technology Tsinghua University Beijing 100084 China Electrical and Computer Engineering Texas A&M University College Station TX 77843 USA Cadence Design Systems Inc 35 Spring Street New Providence NJ 07974 USA

With its advantages in wirelength reduction and routing flexibility compared with conventional Manhattan routing, X architecture has been proposed and applied to modern IC design. As a critical part in high-performance integrated circuits, clock network design meets great challenges due to feature size decrease and clock frequency increase. In order to eliminate the delay and attenuation of clock signal introduced by the vias, and to make it more tolerant to process variations, in this paper, we propose an algorithm of a single layer zero skew clock routing in X architecture （called Pianar-CRX）. Our Planar- CRX method integrates the extended deferred-merge embedding algorithm （DME-X, which extends the DME algorithm to X architecture） with modified Ohtsuki＇s line-search algorithm to minimize the total wirelength and the bends. Compared with planar clock routing in the Manhattan plane, our method achieves a reduction of 6.81% in total wirelength on average and gets the resultant clock tree with fewer bends. Experimental results also indicate that our solution can be comparable with previous non-planar zero skew clock routing algorithm.

关键词： clock routing single layer X architecture zero skew

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Preface of the 2010 IAENG International Conference on Electrical engineering special session: design, analysis and tools for integrated circuits and systems

Proceedings of the International MultiConference of Engineer...

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Proceedings of the International MultiConference of Engineers and Computer Scientists 2010, IMECS 2010 2010年 1333-1335页

作者： Man, Ka Lok Mercaldi, Michele Hahanov, Vladimir Prinetto, Paolo Poncino, Massimo MacIi, Alberto Choi, Joongho Li, Wei Schellekens, Michel Popovici, Emanuel Seon, Jong-Kug Rossi, Umberto Fummi, Franco Pravadelli, Graziano Lam, Yui Fai PavLov, Vladimir Patel, Ajay Huang, Jinfeng Vallee, Thierry Boubekeur, Menouer Sokolova, Ana Almerares, Sergio Donno, Monica Cho, Jun-Dong Zahirul Alam, A.H.M. Provan, Gregory Velev, Miroslav N. Uddin, M. Nasir Botchkarev, Alexei Bosnacki, Dragan Hickey, Dave O'Keeffe, Maria Krilavičius, Tomas Pastrnak, Milan Herbert, John Lu, Zhe-Ming Pan, Jeng-Shyang Chang, Chin-Chen Horng, Mong-Fong Chen, Liang Lim, Chee-Peng Tao, Ngo Quoc Deb, Suash Merniz, Salah Valero, Oscar Yi, Yang Woods, Damien Vedrine, Franck Monsuez, Bruno Yen, Kang Matsuura, Takenobu Edwards, R. Timothy Tveretina, Olga Fino, Maria Helena O'Riordan, Adrian Patrick Labiak, Grzegorz Gaur, M.S. Chang, Jian Chung, Yeh-Ching Derezinska, Anna Cho, Kyoung-Rok Zhang, Yong Liutkevičius, R. Zeng, Yuanyuan Vasudevan, D.P. Bukowiec, Arkadiusz Kitsos, Paris Goudarzi, Maziar Dong, Jin Song Bhalla, Ateet Al-Khalili, Dhamin Navabi, Zainalabedin Zinchenko, Lyudmila Anjum, Muhammad Almas Narasimha, Deepak Laxmi Hughes, Danny Tadjouddine, Emmanuel M. Wang, Jun Kumar, A.P. Sathish Jaisankar, N. Mansoor, Atif Hollands, Steven Mohammadi, Siamak Klein, Felipe Westermann, Peter English, Tom Planas, Miquel Moreto Chung, Chelho Chakrabarti, Amlan Lei, Chi-Un Bamakhrama, Mohamed Naik, B. Rajendra Harte, Sean Yin, Alexander Giancardi, Luigi El-Din Mady, Alie Joseph, Arun Khandekar, Prasad D. Pandey, Hari Mohan Bharti, Vishal O'Mullane, Monica Chen, Chen Xi'an Jiaotong University China Liverpool University United Kingdom Kharkov National University of Radio Electronics Ukraine Politecnico di Torino Italy University of Seoul Korea Republic of Fudan University China Tyndall University College Cork Ireland System LSI Lab. LS Industrial Systems R and D Center Korea Republic of STMicroelectronics Italy University of Verona Italy Hong Kong University of Science and Technology Hong Kong Hong Kong International Software and Productivity Engineering Institute United States Intelligent Support Ltd. United Kingdom Philips and LiteOn Digital Solutions Netherlands Netherlands Georgia Southern University Statesboro GA United States University of Salzburg Austria Sung Kyun Kwan University Korea Republic of International Islamic University Malaysia Malaysia Aries Design Automation United States Lakehead University Canada IEEE Canada Board of Directors Canada Eindhoven University of Technology Netherlands Vytautas Magnus University Lithuania Siemens IT Solutions and Services Slovakia Sun Yat-Sen University China National Kaohsiung University of Applied Sciences Taiwan Feng Chia University Taiwan Shu-Te University Taiwan University of Northern British Columbia Canada University of South Australia Australia Vietnamese Academy of Science and Technology Viet Nam C. V. Raman College of Engineering India Mentouri University Constantine Algeria University of Balearic Islands Spain University of Seville Spain CEA France ENSTA France Florida International University United States Tokai University Japan MultiGiG Inc. United States Karlsruhe University Germany Universidade Nova de Lisboa Portugal University of Zielona Gora Poland Malaviya National Institute of Technology Jaipur India Texas Instruments Inc. United States National Tsing-Hua University Taiwan Warsaw University of Technology Poland Chungbuk National University Korea Republic of Shenzhen University China Vytautas Magnus University Kaunas Lithuania Hellenic Open Univ

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DATICS-2010: Welcome message from workshop organizers: FutureTech 2010

2010 5th International Conference on Future Information Tech...

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2010 5th International Conference on Future Information Technology, FutureTech 2010 - Proceedings 2010年

作者： Man, Ka Lok Mercaldi, Michele Hahanov, Vladimir Prinetto, Paolo Poncino, Massimo MacIi, Alberto Choi, Joongho Li, Wei Schellekens, Michel Popovici, Emanuel Seon, Jong-Kug Rossi, Umberto Fummi, Franco Pravadelli, Graziano Lam, Yui Fai PavLov, Vladimir Patel, Ajay Huang, Jinfeng Vallee, Thierry Boubekeur, Menouer Sokolova, Ana Almerares, Sergio Donno, Monica Cho, Jun-Dong Alam, Ahm Zahirul Provan, Gregory Velev, Miroslav N. Nasir Uddin, M. Botchkarev, Alexei Bosnacki, Dragan Hickey, Dave O'Keeffe, Maria Krilavičius, Tomas Pastrnak, Milan Herbert, John Lu, Zhe-Ming Pan, Jeng-Shyang Chang, Chin-Chen Horng, Mong-Fong Chen, Liang Lim, Chee-Peng Tao, Ngo Quoc Deb, Suash Merniz, Salah Valero, Oscar Yi, Yang Woods, Damien Vedrine, Franck Monsuez, Bruno Yen, Kang Matsuura, Takenobu Timothy Edwards, R. Tveretina, Olga Fino, Maria Helena O'Riordan, Adrian Patrick Labiak, Grzegorz Gaur, M.S. Chang, Jian Chung, Yeh-Ching Derezinska, Anna Cho, Kyoung-Rok Zhang, Yong Liutkevičius, R. Zeng, Yuanyuan Vasudevan, D.P. Bukowiec, Arkadiusz Kitsos, Paris Goudarzi, Maziar Dong, Jin Song Bhalla, Ateet Al-Khalili, Dhamin Navabi, Zainalabedin Zinchenko, Lyudmila Anjum, Muhammad Almas Narasimha, Deepak Laxmi Hughes, Danny Tadjouddine, Emmanuel M Wang, Jun Kumar, A.P. Sathish Jaisankar, N. Mansoor, Atif Hollands, Steven Mohammadi, Siamak Klein, Felipe Westermann, Peter English, Tom Planas, Miquel Moreto Chung, Chelho Chakrabarti, Amlan Lei, Chi-Un Bamakhrama, Mohamed Naik, B. Rajendra Harte, Sean Yin, Alexander Giancardi, Luigi Mady, Alie El-Din Joseph, Arun Khandekar, Prasad D. Pandey, Hari Mohan Xi'an Jiaotong-Liverpool University China Kharkov National University of Radio Electronics Italy Politecnico di Torino Italy University of Seoul China Fudan University Ireland University College Cork Ireland System LSI Lab. LS Industrial Systems R and D Center Korea Republic of STMicroelectronics Italy University of Verona Hong Kong Hong Kong University of Science and Technology Hong Kong Hong Kong International Software and Productivity Engineering Institute United States Intelligent Support Ltd. United Kingdom Philips and LiteOn Digital Solutions Netherlands Netherlands Georgia Southern University Statesboro GA Austria University of Salzburg Korea Republic of Sung Kyun Kwan University Malaysia International Islamic University Malaysia Malaysia Aries Design Automation United States Lakehead University Canada IEEE Canada Board of Directors Canada Eindhoven University of Technology Lithuania Vytautas Magnus University Greece Siemens IT Solutions and Services Slovakia Sun Yat-Sen University China National Kaohsiung University of Applied Sciences Taiwan Feng Chia University Taiwan Shu-Te University Canada University of Northern British Columbia Australia University of South Australia Viet Nam Vietnamese Academy of Science and Technology Viet Nam C. V. Raman College of Engineering India Mentouri University Constantine Spain University of Balearic Islands Spain University of Seville France CEA France ENSTA France Florida International University Japan Tokai University Japan MultiGiG Inc. United States Karlsruhe University Portugal Universidade Nova de Lisboa Poland University of Zielona Gora India Malaviya National Institute of Technology Jaipur India Texas Instruments Inc United States National Tsing-Hua University Poland Warsaw University of Technology Korea Republic of Chungbuk National University China Shenzhen University Lithuania Vytautas Magnus University Kaunas Greece Hellenic Open University Patras Singapore National University of Singapore Sing

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An improved particle swarm optimization and its application to power system transfer capability calculation

An improved particle swarm optimization and its application ...

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2006 International Conference on Power System Technology, POWERCON2006

作者： Zhang, Chang-Hua Sun, Rong-Fu Liu, Chong-Xu Fan, Yue Niu, Shuan-Bao Song, Yong-Hua IEEE Key Laboratory of Complex Systems and Intelligence Science Institute of Automation Chinese Academy of Sciences Beijing 100080 China Department of Electrical Engineering Tsinghua University Beijing 100084 China Northwest China Grid Company Xi'an 710048 Shanxi Province China School of Engineering and Design Brunel University London United Kingdom

ISBN: (纸本)1424401119

In this paper, an algorithm based on Particle Swarm Optimization (PSO) for power system transfer capability calculation is presented. A dual fitness scheme that takes both objective and constraint into account is adopted to evaluate the survival chance of any particle, thus avoid the drawbacks of traditional penalty method. In the evolution process, if the population best particle has no update during a prescribed number of consecutive generations, it is regarded as a local optimum solution and the searching space around this particle is locked to prevent other particles flying into it. And this particle is saved as one of the candidate solution. In the end, by comparing the fitness of all saved particles and the current population best particle, the optimum value can be obtained. This improved particle swarm algorithm is then successfully applied to IEEE 118 bus system optimization problem. Compared with a traditional well-known method, sequential quadratic programming (SQP), our proposal obtains better solutions for this problem. © 2006 IEEE.

关键词： Evolutionary algorithms

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Development and application of software for ATC calculation

Development and application of software for ATC calculation

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2006 International Conference on Power System Technology, POWERCON2006

作者： Sun, Rong-Fu Fan, Yue Song, Yong-Hua Sun, Yuan-Zhang Zhang, Chang-Hua Niu, Shuan-Bao IEEE Department of Electrical Engineering Tsinghua University Beijing 100084 China Key Laboratory of Complex Systems and Intelligence Science Institute of Automation Chinese Aoademy of Sciences Beijing 100080 China Northwest China Grid Company Xi'an 710048 Shanxi Province China Sohool of Engineering and Design Brunel University London United Kingdom

ISBN: (纸本)1424401119

In the environment of the power market, available transfer capability (ATC) is a measure of transfer capability remaining in the physical transmission network for future commercial activity over and above already committed uses, then it is an important parameter for all companies participating in the power transmission activities. Widely used ATC calculation software -Powerworld simulates power transfer increment through decreasing generation output in sink area (receiving-end) using the repeated power flow method, but this simulation model does not accord with the actual circumstances of electricity shortage in China. In this paper, a combined method including linear distribution factors and repeated power flow (RPF) is proposed to perform ATC calculation, meanwhile, two scenarios can be selected to simulate power transfer increment: One is to increase the total generation output in source area as the load in sink area increases;The other is to decrease the same amount of generation in sink area while the generation output in source area is to be increased. According to the tests applied in the Northwest China Power Network to perform ATC calculation and analysis, this method guarantees more exact results by simulating actual transfer increasing mode of the Northwest China Power Network. © 2006 IEEE.

关键词： Computer software

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TRACKING CONTROL IN THE PRESENCE OF NONLINEAR DYNAMIC FRICTIONAL EFFECTS: ROBOT EXTENSION

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Asian Journal of Control 2008年第3期1卷

作者： M. Feemster D.M. Dawson A. Behal W. Dixon Matthew Feemster received the B.S degree in Electrical Engineering from Clemson University Clemson South Carolina in December 1994. Upon graduation he remained at Clemson University and received the M.S. degree in Electrical Engineering in 1997. During this time he also served as a research/teaching assistant. His research work focused on the design and implementation of various nonlinear control algorithms with emphasis on the induction motor and mechanical systems with friction present. He is currently working toward his Ph.D. degree in Electrical Engineering at Clemson University. Darren M. Dawson was born in 1962 in Macon Georgia. He received an Associate Degree in Mathematics from Macon Junior College in 1982 and a B.S. Degree in Electrical Engineering from the Georgia Institute of Technology in 1984. He then worked for Westinghouse as a control engineer from 1985 to 1987. In 1987 he returned to the Georgia Institute of Technology where he received the Ph.D. Degree in Electrical Engineering in March 1990. During this time he also served as a research/teaching assistant. In July 1990 he joined the Electrical and Computer Engineering Department and the Center for Advanced Manufacturing (CAM) at Clemson University where he currently holds the position of Professor. Under the CAM director's supervision he currently leads the Robotics and Manufacturing Automation Laboratory which is jointly operated by the Electrical and Mechanical Engineering departments. His main research interests are in the fields of nonlinear based robust adaptive and learning control with application to electro-mechanical systems including robot manipulators motor drives magnetic bearings flexible cables flexible beams and high-speed transport systems. Aman Behal was born in India in 1973. He received his Masters Degree in Electrical Engineering from Indian Institute of Technology Bombay in 1996. He is currently working towards a Ph.D in Controls and Robotics at Clemson University. His research focuses on the control of no

In this paper, we extend the observer/control strategies previously published in [25] to an n -link, serially connected, direct drive, rigid link, revolute robot operating in the presence of nonlinear friction effects modeled by the Lu-Gre model. In addition, we also present a new adaptive control technique for compensating for the nonlinear parameterizable Stribeck effects. Specifically, an adaptive observer/controller scheme is developed which contains a feedforward approximation of the Stribeck effects. This feedforward approximation is used in a composite controller/observer strategy which forces the average square integral of the position tracking error to an arbitrarily small value. Experimental results are included to illustrate the performance of the proposed controllers.

关键词： Friction compensation nonlinear control

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Capturing multimedia requirements descriptions with mobile RE tools

Capturing multimedia requirements descriptions with mobile R...

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First International Workshop on Multimedia Requirements Enineering, MeRE'06

作者： Rabiser, Rick Seyff, Norbert Grünbacher, Paul Maiden, Neil Christian Doppler Laboratory for Automated Software Engineering Johannes Kepler University Linz 4040 Linz Austria Johannes Kepler University Linz Systems Engineering and Automation 4040 Linz Austria City University London Centre for HCI Design London EC1V 0HB United Kingdom

ISBN: (纸本)0769527132

As tools for requirements engineering (RE) become available on mobile devices using their multimedia capabilities to capture requirements descriptions is an obvious opportunity. This paper reports on two different approaches enabling mobile analysts and end-users to add multimedia descriptions to requirements. Based on our mobile tool for scenario-based RE we compare a solution based on the COTS package Microsoft Pocket Word with a novel plug-in solution providing more flexibility for tool users. © 2006 IEEE.

关键词： Requirements engineering

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Making Mobile Requirements engineering Tools Usable and Useful

Making Mobile Requirements Engineering Tools Usable and Usef...

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IEEE International Conference on Requirements engineering

作者： Neil Maiden Norbert Seyff Paul Grunbacher Omo Otojare Karl Mitteregger Centre for HCI Design City University of London London UK Systems Engineering & Automation Johannes Kepler University Linz Linz Austria Christian Doppler Laboratory for Automated Software Engineering Johannes Kepler University Linz Linz Austria

Recent advances in mobile computing technologies mean that mobile tools have the potential to support scenario-based techniques in the workplace, with potential benefits to requirements processes. However, mobile requirements engineering (RE) tools are a new idea, and little is known about their advantages and weaknesses. This paper reports empirical research to explore the use of mobile RE tools in practice. It describes a mobile scenario tool that we developed to discover requirements directly in the user's work context. It also describes the results from 3 evaluation studies that demonstrate that these tools can support workplace requirements discovery and documentation, although mobile RE tools pose new challenges that remain to be overcome

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Capturing Multimedia Requirements Descriptions with Mobile RE Tools

Capturing Multimedia Requirements Descriptions with Mobile R...

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International Workshop on Multimedia and Enjoyable Requirements engineering - Beyond Mere Descriptions and with More Fun and Games (MERE)

作者： Rick Rabiser Norbert Seyff Paul Grunbacher Neil Maiden Christian Doppler Laboratory for Automated Software Engineering Johannes Kepler University Linz Linz Austria Systems Engineering & Automation Johannes Kepler University Linz Linz Austria Centre for HCI Design City University of London London UK

As tools for requirements engineering (RE) become available on mobile devices using their multimedia capabilities to capture requirements descriptions is an obvious opportunity. This paper reports on two different approaches enabling mobile analysts and endusers to add multimedia descriptions to requirements. Based on our mobile tool for scenario-based RE we compare a solution based on the COTS package Microsoft Pocket Word with a novel plug-in solution providing more flexibility for tool users.

关键词： design engineering Personal digital assistants Videos Multimedia systems Microphones Digital cameras Natural languages Human computer interaction Laboratories Software tools

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Development and Application of Software for ATC Calculation

Development and Application of Software for ATC Calculation

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International Conference on Power System Technology (POWERCON)

作者： Rong-fu Sun Yue Fan Yong-hua Song Yuan-zhang Sun Department of Electrical Engineering Tsinghua University Beijing China Northwest China Grid Company Xi'an Shanxi Province China School of Engineering and Design Brunel University London UK Key Laboratory of Complex Systems and Intelligence Science Institute of Automation Chinese Academy of Sciences Beijing China

In the environment of the power market, available transfer capability (ATC) is a measure of transfer capability remaining in the physical transmission network for future commercial activity over and above already committed uses, then it is an important parameter for all companies participating in the power transmission activities. Widely used ATC calculation software-Powerworld simulates power transfer increment through decreasing generation output in sink area (receiving-end) using the repeated power flow method, but this simulation model does not accord with the actual circumstances of electricity shortage in China. In this paper, a combined method including linear distribution factors and repeated power flow (RPF) is proposed to perform ATC calculation, meanwhile, two scenarios can be selected to simulate power transfer increment: One is to increase the total generation output in source area as the load in sink area increases; The other is to decrease the same amount of generation in sink area while the generation output in source area is to be increased. According to the tests applied in the Northwest China power network to perform ATC calculation and analysis, this method guarantees more exact results by simulating actual transfer increasing mode of the Northwest China power network.

关键词： Application software Power generation Load flow Power markets Power measurement Particle measurements Power transmission Testing Performance evaluation Performance analysis

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