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A new solution method for joint replenishment problem

International Journal of Manufacturing Technology and management 2009年第1-2期16卷 166-175页

作者： Yoo, Myungryun Lin, Lin Department of Computer Science and Media Engineering Musashi Institute of Technology Tokyo Japan Graduate School of Information Production and Systems Waseda University Kitakyushu-shi Japan Research Institute for Science and Engineering Graduate School of Information Production and Systems Waseda University Japan

In this paper, we propose a new approach for the Joint Replenishment Problem (JRP) where items are procured from multisupplier. In solution algorithms, Genetic Algorithm (GA) and Simulated Annealing (SA) are cooperatively used. In the new method, the convergence of GA is improved by introducing the probability of SA as the criterion for acceptance of new trial solution. The purpose of an algorithm proposed in this paper is to minimise the total relevant costs per unit time. The effectiveness of the new algorithm for the JRP is shown through a simulation study. Copyright © 2009 Inderscience Enterprises Ltd.

关键词： Genetic algorithms

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A normative self-organizing migrating algorithm for power economic dispatch of thermal generators with valve-point effects and multiple fuels

A normative self-organizing migrating algorithm for power ec...

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IEEE International Conference on systems, Man and Cybernetics

作者： Viviana Cocco Mariani Rodrigo Clemente Thom de Souza Leandro dos Santos Coelho Department of Mechanical Engineering PPGEM Pontifical Catholic University of Paraná Curitiba Parana Brazil Industrial and Systems Engineering PPGEPS Pontifical Catholic University of Paraná Curitiba Parana Brazil Industrial and Systems Engineering Graduate Program PPGEPS Pontifical Catholic University of Paraná Curitiba Parana Brazil

A new class of meta-heuristics called SOMA (Self-Organizing Migrating Algorithm) was proposed in recent literature. SOMA works on a population of potential solutions called specimen and it is based on the self-organizing behavior of groups of individuals in a ¿social environment¿. This paper proposes a modified SOMA approach to solving the economic load dispatch problem of thermal generators with the valve-point effect. To show the performance of the proposed modified SOMA algorithm based on fundamentals of normative knowledge in cultural algorithms, which was applied to test the power economic problem comprised 10 generating units with valve-point effects and multiple fuels for the load demands of 2400 MW. Simulation results show that the classical and modified SOMA algorithms are efficient and have good convergence property when compared with results of other optimization methods reported in the literature.

关键词： Power generation economics Fuel economy Power generation Environmental economics Power system economics Industrial economics systems engineering and theory Stochastic processes Evolutionary computation Modeling

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Detection of plagiarism in database schemas using structural fingerprints

Detection of plagiarism in database schemas using structural...

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ACS/IEEE International Conference on Computer systems and Applications

作者： Samer M. Abd El-Wahed Ahmed Elfatatry Mohamed S. Abougabal Department of Information Technology Institute of Graduate Studies and Research Alexandria University Egypt Department of Computer and Systems Engineering Faculty of Engineering Alexandria University Egypt

This research is concerned with plagiarism in software design. Specifically, the focus is on database design. Generally, producing plagiarized software may be done through illegal use of someone else's source code or database design. Since it is hard to steal source code from the original author(s), the database schema is usually easier to be viewed, studied and hence plagiarized. Efficient design of a database schema requires an understanding of the application area, the data usage patterns, and the underlying database management system. Stealing the effort of this step may be rewarding to some. The main contribution of this paper is the suggestion of a software tool for detecting plagiarized database schemas using structural fingerprints of database tables.

关键词： Plagiarism Fingerprint recognition Intellectual property Information technology Software tools Data engineering Software design Application software Database systems Forensics

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A parallel hybrid ant colony optimisation approach for job-shop scheduling problem

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International Journal of Manufacturing Technology and management 2009年第1-2期16卷 22-41页

作者： Zhang, Haipeng Gen, Mitsuo Department of Industrial Engineering Pusan National University Korea Republic of Graduate School of Information Production and Systems Waseda University Japan

In this paper, we combine ACO with some randomised dispatching heuristics and propose a special transition rule for finding the best schedule to the JSP problems. Moreover, a special critical path-based local search is also combined to improve the best solutions by reducing the idle time. In order to gain higher efficiency of the proposed algorithm and avoid the early convergence in local optimal solution, we enhance the hybrid ACO by building a parallel hybrid Ant Colony Optimisation (ph-ACO) algorithm. Some numerical examples are used to demonstrate the performance of the ph-ACO and we can find that the proposed ph-ACO algorithm with Longest Remaining processing Time (LRT) and Longest Remaining processing time Excluding the operation under consideration (LRE) can both improve the efficiency of the algorithm obviously. Furthermore, we also decide the appropriate parameter setting of β is around 2. Finally, after comparing with hybrid Genetic Algorithm (GA) by solving same benchmark problems, the experimental results show the proposed ph-ACO outperforms traditional ACO and hybrid GA. Copyright © 2009 Inderscience Enterprises Ltd.

关键词： Genetic algorithms

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In-situ single cell manipulation via nanorobotic manipulation system inside E-SEM

In-situ single cell manipulation via nanorobotic manipulatio...

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20th Anniversary MHS 2009 and Micro-Nano Global COE - 2009 International Symposium on Micro-NanoMechatronics and Human Science

作者： Shen, Yajing Nakajima, Masahiro Ahmad, Mohd Ridzuan Kojima, Seiji Homma, Michio Fukuda, Toshio Department of Micro-Nano Systems Engineering Nagoya University Chikusa-ku Nagoya 464-8602 Japan Division of Biological Science Graduate School of Science Nagoya University Furo-cho Chikusa-ku Nagoya 464-8602 Japan

ISBN: (纸本)9781424450954

We performed in-situ single cell (W303) manipulation with force measurement inside the Environment-SEM. The mechanical end effector was fabricated from a commercial A FM cantilever by F IB etching. The end effector was assembled to the nanorobotic manipulation system which can realize controlling the position at the nanometer scale. The releasing, sliding and rolling of single cell on a substrate were achieved by controlling the humidity condition inside E-SEM. The influence of humidity to the single cell manipulation inside E - S EM was also discussed for the first time. To our knowledge, it is the first time to manipulate single cell with sliding and rolling movements inside E-SEM. ©2009 IEEE.

关键词： End effectors

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Use of Tablet PCs to generate class discussion and facilitate deeper understanding

Use of Tablet PCs to generate class discussion and facilitat...

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2009 ASEE Annual Conference and Exposition

作者： Farahani, Ali Uhlig, Ronald National University School of Business and Information Management San Diego CA United States School of Engieering and Technology United States Department of Computer Science and Information Systems School of Engineering and Technology National University United States

At ASEE 2008, we reported encouraging results from our use of Tablet PCs in teaching complex information structures in wireless engineering and network security classes. In recent years there have been a number of similar studies on the use of Tablet PCs in the higher education classroom and their impact on teaching and learning. Most, if not all, report that learning is enhanced when tablet PC's are employed to increase interaction between students and instructors and among students. A common approach in keeping students engaged and interacting is by periodically broadcasting questions to students and having them send their responses anonymously to the instructor. All or selected answers are then shared with the class in order to generate discussion. In this paper we will specifically focus on this mode of utilizing Tablet PCs in an undergraduate Computer Science Data Structures course to study the impact and benefits of this facilitated discussion in terms of students' deeper understanding and improved learning of the lecture material. We will report both quantitative data that show improvements in scores on exams, and we will provide examples of specific exercises given in class, along with students' answers. In addition, we will report on students' perceptions of the impact of this mode of teaching on their ability to learn. This will be based on analysis of questionnaires completed by the students, and comparisons of results for this undergraduate computer science class with results from graduate wireless communications classes. The graduate student surveys yielded an average score of 4.21 out of 5 points on the positive impact of the interactive use of Tablet PCs on improving learning. We also provide some comments made by graduate and undergraduate students. This work is made possible by a Hewlett-Packard Corporation Technology for Teaching - Higher Education grant received in 2007. © American Society for engineering Education, 2009.

关键词： Students

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An LMI approach for output feedback Robust Predictive Control using Orthonormal Basis Functions

An LMI approach for output feedback Robust Predictive Contro...

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IEEE Conference on Decision and Control

作者： Humberto X. Araújo Gustavo H. C. Oliveira Department of Electrical Engineering Federal University of Bahia Salvador Bahia Brazil Industrial and Systems Engineering Graduate Program (PPGEPS Pontifícia Universidade Catóica do Paraná Curitiba Parana Brazil

ISBN: (纸本)9781424438716

This paper is focused on the problem of uncertain process control by using RMPC (robust model predictive control). A relevant class of RMPC algorithms is the one characterized by the use of the LMI framework. This field started in the middle of nineties and since then several works applying LMIs in the context of RMPC have been proposed. Most of them assume a polytopic representation of the process uncertainties and require full-state feedback. On the other hand, several works describing the theory and applicability of OBF (orthonormal basis functions) in identification and control fields can be found in the literature. So, the present paper proposes the use of OBF for uncertain process modelling and for RMPC algorithm synthesis. It is shown that, due to the proposed approach, one obtains an output feedback control law, with set-point tracking. This represents an advantage in actual applications. Moreover, well established state feedback RMPC strategies can be reviewed under the OBF modelling perspective. Simulation results illustrate the proposed methodology.

关键词： Output feedback Robust control Predictive control Predictive models Uncertainty State feedback Prediction algorithms Finite impulse response filter Parameter estimation Lyapunov method

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An LMI Approach for Output Feedback Robust Predictive Control using Orthonormal Basis Functions

An LMI Approach for Output Feedback Robust Predictive Contro...

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Joint 48th IEEE Conference on Decision and Control and 28th Chinese Control Conference

作者： Humberto X.Araújo Gustavo H.C.Oliveira Department of Electrical Engineering Federal University of Bahia (UFBA) Industrial and Systems Engineering Graduate Program (PPGEPS) Pontifícia Universidade Católica do Paraná(PUCPR)Rua Imaculada Concei?o

This paper is focused on the problem of uncertain process control by using RMPC（Robust Model Predictive Control）.A relevant class of RMPC algorithms is the one characterized by the use of the LMI *** field started in the middle of nineties and since then several works applying LMIs in the context of RMPC have been *** of them assume a polytopic representation of the process uncertainties and require full-state *** the other hand,several works describing the theory and applicability of OBF（Orthonormal Basis Functions） in identification and control fields can be found in the ***,the present paper proposes the use of OBF for uncertain process modelling and for RMPC algorithm *** is shown that,due to the proposed approach,one obtains an output feedback control law,with set-point *** represents an advantage in actual ***,well established state feedback RMPC strategies can be reviewed under the OBF modelling *** results illustrate the proposed methodology.

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Improvement of grounding resistances using a deep-ground-well method for indoor-type substations located in complex soils

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European Transactions on Electrical Power 2009年第2期19卷 274-290页

作者： Chang, Cheng-Nan Lee, Chien-Hsing Wang, Yaw-Juen Graduate School of Engineering Science and Technology National Yunlin University of Science and Technology Yunlin 640 Touliu Taiwan Department of Systems and Naval Mechatronic Engineering National Cheng Kung University Tainan 701 Taiwan Department of Systems and Naval Mechatronic Engineering National Cheng Kung University Ta-Hsueh Road Tainan 701 Taiwan

The purpose of this paper is to investigate the performance of a deep-ground-well method used for improving the grounding resistances of indoor-type substations located in complex soils in the system of Taiwan Power Company (TPC). Three and two ground wells are installed at Kungchia and Kuoan 161/23.9-11.95 kV substations as examples for assessing the improvement. The grounding resistances of ground wells are calculated by one- and equivalent n-layer soil models with the image method and the current distribution electromagnetic grounding and soil structure analysis (CDEGS) program. On the other hand, the grounding resistances of ground wells are measured by the fall-of-potential method. As a result, the calculated grounding resistances of ground wells based on an equivalent two-layer soil model are approximately equal to the measured grounding resistances of ground wells. Moreover, the grounding resistances of Kungchia and Kuoan indoor-type substations after installing ground wells are improved about 70.29 and 58.40%, respectively. Copyright # 2007 John Wiley & Sons, Ltd.

关键词： Soils

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Automatic Single Cell Transfer Module

Automatic Single Cell Transfer Module

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2009 IEEE International Conference on Robotics and Biomimetics(2009 IEEE 机器人与仿生技术国际会议 ROBIO 2009)

作者： Akiyuki Hasegawa Huseyin Uvet Kenichi Ohara Tomohito Takubo Yasushi Mae Tatsuo Arai Division of Systems Science Department of Systems Innovation Graduate School of Engineering ScienceOsaka University 1-3 MachikaneyamaToyonakaOsaka 560-8531Japan

ISBN: (纸本)9781424447749

In this paper, we presented a design for an automated single cell loading and supply system that can be used with complex microfluidic applications requiring single cell loading such as the current nuclear transplantation method. The aim of the system is to automatically transfer mammalian donor (～15μm) or egg (～100μm) cells one by one from a container to a PDMS micro-channel and then transport them to other modules. The system consists of two main parts;a single cell suction module, and a PDMS-based microfluidic chip controlled by an external pump. The desired number of vacuumed cells can be directed into the microfluidic chip and stored in a docking area. From the batch, they can be moved to next module by activating pneumatic pressure valves located on two sides of the chip. The entire mechanism is combined with monitoring systems that perform the detection/tracking and control program.

关键词： Micro-Nano Robotics Microfluidic Chips Single Cell Applications Vision systems

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