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IEEE Region 10 International Conference TENCON

作者： J. Jais Z.A. Rahman S.A. Hamid Z. Ibrahim M.Z.M. Yusoff H. Hussain College of Engineering Universiti Tenaga Malaysia (UNITEN) Kajang Selangor Darul Ehsan Malaysia Center for Research and Post-Graduate Program Multimedia University Cyberjaya Selangor Darul Ehsan Malaysia

In Malaysia, the area of management information systems (MIS) is growing rapidly in most of the higher learning institutions, in line with the government's encouragement to make information technology (IT) a part of our lives. Thus, a survey was carried out to oversee the roles and application of MIS in the higher learning institutions of Malaysia, emphasising managerial roles in decision making. Decision-making consists of stages that can be described as intelligence, design, choice, and implementation. In our survey, twelve higher learning institutions are used to help identify factors/activities involved in the first stage of decision making i.e., intelligence. From the survey, it was found that managers of higher learning institutions play a vital role in the implementation of MIS to enable business objectives and improve productivity. Any management decisions made about IT are critically important, since it will determine the prosperity and survival of the organization.

关键词： Management information systems Decision making Educational institutions Electronic mail Multimedia systems Computer networks Government Information technology Business Productivity

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Multicriteria load management in power systems

Multicriteria load management in power systems

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International Conference on Electric Utility Deregulation and Restructuring and Power Technologies (DRPT)

作者： P.Ya. Ekel L.D.B. Terra M.F.D. Junges A.V. Prakhovnik O.V. Razumovsky Post Graduate Program in Electrical Engineering Pontifical Catholic University of Minas Gerais Belo Horizonte Minas Gerais Brazil Institute for Energy Savings and Energy Management National Technical University Kharkov Polytechnic Institute Kiev Ukraine

The problems of power and energy shortage (natural or associated with the advisability of load management) allocation at different levels of territorial, temporal, and situational hierarchy of consumption control are formulated within the framework of multicriteria optimization models. This permits one to realize a new technology of load management providing consideration and minimization of diverse negative consequences of power and energy shortage allocation and creation of incentive influences for consumers. The solution of multicriteria problems is based on the Bellman-Zadeh approach to decision making in a fuzzy environment. The advantages and capabilities opened by its application are discussed. The results of the paper are realized within the framework of an adaptive interactive decision making system, which can be used in allocating diverse types of resources or their shortages.

关键词： Load management Power system management Resource management Decision making Power generation economics Environmental economics Electricity supply industry Energy management Telephony Electronic mail

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Fuzzy logic technology in reactive power control

Fuzzy logic technology in reactive power control

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International Conference on Electric Utility Deregulation and Restructuring and Power Technologies (DRPT)

作者： P.Y. Ekel L.D.B. Terra M.F.D. Junges A.V. Prakhovnik F.J.A. De Oliveira A. Melek R. Kowaltschuk T.Y. Taguti Post Graduate Program in Electrical Engineering Pontifical Catholic University of Minas Gerais Belo Horizonte Minas Gerais Brazil Institute for Energy Savings and Energy Management National Technical University Kharkov Polytechnic Institute Kiev Ukraine Transmission System Operation Superintendence Parana State Energy Company Curitiba Parana Brazil

This paper presents results of research aimed at improving efficiency of coordinated on-line control of reactive power on the basis of developing models, methods, and a control system, integrating traditional numerical techniques with fuzzy logic technology. An approach associated with experimental design is considered to construct diverse types of sensitivity indices, which serve as the basis for multi-attribute evaluating efficiency of control actions and, therefore, for forming rules included in a knowledge base. Procedures related to classifying power system states are presented. Questions of the construction and tuning of linguistic variables as well as rational implementation of fuzzy logic procedures are discussed.

关键词： Fuzzy logic Reactive power control Power system modeling Fuzzy control Fuzzy set theory Power system control Power systems Control system synthesis Design for experiments Expert systems

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Fuzzy logic in voltage and reactive power control in power systems

Fuzzy logic in voltage and reactive power control in power s...

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IEEE Conference on Control Technology and Applications (CCTA)

作者： P.Ya. Ekel L.D.B. Terra M.F.D. Junges F.J.A. de Oliveira R. Kowaltschuk T.Y. Taguti Post Graduate Program in Electrical Engineering Catholic University of Minas Gerais Belo Horizonte Minas Gerais Brazil COPEL Transmission Parana State Energy Company Curitiba Parana Brazil

This paper presents results of research aimed at improving the efficiency of the coordinated online control of system voltage and reactive power on the basis of developing models, methods, and a control system, by integrating traditional numerical techniques with the fuzzy logic technology. An approach associated with experimental design is considered to construct diverse types of sensitivity indices, which serve as the basis for multi-attribute evaluating efficiency of control actions and, therefore, for forming rules included in knowledge base. Questions of the construction and tuning of linguistic variables as well as rational implementation of fuzzy logic procedures are discussed.

关键词： Fuzzy logic Reactive power control Power system control Power systems Voltage control Fuzzy control Power system modeling Control system synthesis Fuzzy set theory Expert systems

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A fuzzy decision making for the distribution systems planning

A fuzzy decision making for the distribution systems plannin...

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1998 International Conference on Power System Technology, POWERCON 1998

作者： Cavati, C.R. Ekel, P.Ya. Federal University of Espirito Santo Department of Electric Engineering AV. Fernando Ferrari UN Vitdria ES Brazil Catholic University of Minas Gerais Post Graduate Program in Electric Engineering AV. Dom Jose Gaspar 500 Belo Horizonte- MG30535-610 Brazil

ISBN: (纸本)0780347544

This paper presents results of research associated with the development of a fuzzy set based approach to improving the efficiency of distribution system operational planning on indices of service quality and economic feasibility. To reach this goal the problem of operational planning is formulated and solved within the framework of a fuzzy mixed integer linear programming model. An example illustrating the validity of the approach is considered. © 1998 IEEE.

关键词： Fuzzy sets

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A fuzzy decision making for the distribution systems planning

A fuzzy decision making for the distribution systems plannin...

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International Conference on Power System Technology (POWERCON)

作者： C.R. Cavati P.Ya. Ekel Department of Electric Engineering Federal University of Espirito Santo Vitoria Espirito Santo Brazil Post Graduate Program in Electric Engineering Catholic University of Minas Gerais Belo Horizonte Minas Gerais Brazil

关键词： Fuzzy systems Decision making Voltage Power system modeling Fuzzy sets Electronic mail Costs Uncertainty Fuzzy set theory Load flow

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Applying fuzzy functions and sequential coordination to optimization of machinery arrangement and pipe routing

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NAVAL ENGINEERS JOURNAL 1998年第6期110卷 43-54页

作者： Wu, BC Young, GS Schmidt, W Choppella, K Dr. Bi-Chu Wu:received a PhD in Mechanical Engineering from the University of Maryland College Park in 1991. She has worked on projects involving naval architecture design optimization solid mechanics and database development. Presently a senwr engineer with Angle Incorporated Dr Wu's research interests are in design optimization and fuzzy logic applications. Dr. Gin-Shu Young: a senior engineer with Angle Incorporated holds a PhD in Mechanical Engineering from the University of Maryland College Park. As a guest researcher with National Institute of Standards and Technologies from 1990 to 1993 he worked on vision-based navigation for autonomous vehicles. His experience also includes applications of optimization fuzzy logic neural network and genetic algorithm methods to engineering system design Mr. William Schmidt:co-founded Angle Incorporated in 1990 and has served as Vice PresidentlChiefScientist during this tame. He holds a B.Sc. in Applied Science from the Naval Acadt?my and an M.Sc. in Physics from the Naval Post Graduate School. He has cner 20 years experience in technical leadership material and personnel management. He has led the application of computer aided design (CAD) and Product Model Information Exchange to the shipbuilding industry. His experience also includes leading the amlication of model based operational analysis to support the Live Fire Test Program for DDG 51 Class Destroyers. Mr. Krishna M. Choppella:is a Sofware Engineer at Eidea Laboratories Incotporated where he works on componentbased distributed enterpvise frameworks. He has been involved in creating data analysis tools for the US Nay by integrating CAD modeis databases and graphical front ends. His work in the Masters degree program in Mechanical Engineering at the University of Texas at Austin was in di0ddase.r spectroscopy of combustion products in porous-matri burners. He received his Bachelors degree in Electrical Engineering in India. He was a Research Associate at the Centre for Laser Technology and Project Engi

Ship design is often multidisciplinary involving several design elements with various types of objectives and constraints (O/C) some easily described as mathematical formulas, others better modeled as descriptive assertions. This paper describes a method based on fuzzy functions and an integrated performance index to model O/C using descriptive assertions to be used with mathematical formulas in optimization. Another issue addressed in this paper concerns the coordination of design elements when sequentially coupled, that is, when one leads the other and the performance of the follower depends greatly on the design of the leader. Based on neuro-fuzzy techniques, the method described here coordinates and optimizes sequentially coupled elements. The two methods are applied to machinery arrangement (MA) and pipe routing (PR). Preliminary models for optimization of MA and PR are described considering convenience, producibility: engine room size, interference and location as factors in the O/C set. Some test results from MA/PR applications are presented and discussed. The methods are generic and can be extended to other elements in ship design. They are mutually independent and may be used separately Two advantages of their use are an improvement in overall performance and a reduction in the need for redesign of elements.

关键词： Optimization

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Effect of Ozonation and Biotreatment on Molecular Size and Hydrophilic Fractions of Natural Organic Matter

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ACS Symposium Series 1996年第649期649卷 196-196页

作者： Koechling, M. T. Shukairy, H. M. Scott Summers, R. Department of Civil Engineering University of Cincinnati Cincinnati OH 45221-0071 P.O. Box 210071 United States Post Graduate Research Program Oak Ridge Inst. for Sci./Education U.S. Environmental Protection Agency Cincinnati OH 45268 26 West Martin Luther King Drive United States

The impact of ozonation and ozonation combined with biotreatment on the molecular size (MS) distribution, hydrophilicity, chlorine reactivity and chemical composition of a groundwater natural organic matter was investigated. Chlorination of isolated fractions was conducted under constant precursor concentrations and chlorination conditions. In the untreated solution, the <1K MS fraction was the most reactive to chlorination, and the nonhumic fraction showed the highest bromine incorporation. Ozonation caused a shift to smaller MS and hydrophilic fractions, and from a polyaromatic nature to a polysaccharidal and proteinaecous nature, as measured by pyrolysis-GC/MS analyses, but did not affect the disinfection by-product (DBP) specific yield in the larger MS fractions. It did cause a shift towards more bromosubstituted DBFs. Subsequent biotreatment was most effective in dissolved organic carbon removal for the <1K MS fraction, but did not exhibit selective DBF precursor removal in any fraction.

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THE ADVANCED TOMAHAWK WEAPONS CONTROL-SYSTEM FOR SUBMARINES

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NAVAL ENGINEERS JOURNAL 1995年第3期107卷 35-40页

作者： BAEHR, JS LCdr. Joseph S. Baehr:is serving as the Submarine Advanced Systems Engineer tor the TOMAHAWK Weapons Control System Program Office PMA-282. He received his B.S. degree in Systems Engineering from the U.S. Naval Academy in 1983 and his M.S. degree in Electrical Engineering from the Naval Post Graduate School in 1990. He has served in several positions on board Sturgeon and Los Angeles class nuclear fast attack submarines including three years as Combat Systems Officer on USS Helena (SSN 725). He has been in his current assignment at the Cruise Missiles Project since June 1994 with primary responsibility for the Submarine ATWCS program.

The Advanced TOMAHAWK Weapons Control System (ATWCS) is being developed to support current and future tactical cruise missiles onboard navy ships. The ATWCS utilizes the Navy's standard Tactical Advanced Computer (TAC) 3 components and commercial standard Local Area Networks (LANs) to provide a flexible, robust system with excellent growth potential. Aggressive use of systems engineering principles has refined the system design so that it is adaptable to various Navy platforms. An excellent example of the success in meeting this design goal is the Submarine ATWCS. The primary data pathway for ATWCS is a Fiber Distributed Data Interface (FDDI) LAN connecting the four TAC 3 processors. Existing Common Display Consoles (CDCs) are used for display and control of the TAC 3 processors. The Submarine ATWCS builds on software already developed for surface ships. The open system architecture of this software is based on Computer Software Configuration Items (CSCIs) and several are obtained from other programs. Direct weapons interface in the Combat Control System (CCS) provides optimum efficiency in weapons control while gaining the functionality advantages of ATWCS. This paper describes the systems engineering solutions for both software and hardware to achieve a modern cruise missile weapons control capability for submarines utilizing non-development items (NDI), Commercial Off The Shelf (COTS) technology LANs and open system architecture.

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Evaluation of the Recreio Flowsheet — COPELMI

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Fuel 1993年第5期72卷 722-722页

作者： C.H. Sampaio L.A.C. Klujszo G.F. Cavalcante Post-Graduate Program on Metallurgical and Materials Engineering (PPGEMM) Federal University of Rio Grande do Sul (UFRGS) Porto Alegre Brazil

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