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IEEE Region 10 International Conference TENCON

作者： A.b.M.S. Hossain M.I. Islam Department of Electrical and Electronic Engineering B. U. E. T Dhaka Bangladesh Department of Electronics and Computer Science Jahangir Nagar University Dhaka Bangladesh

In planning a fixed/mob.le cellular communication system initial cell-site positioning should b. considered carefully. In practice co-channel and adjacent channel interference not only depend on frequency allocation and transmitting power b.t also on cell-site location. This paper introduces a linear regression of coverage b.rder method for optimum cell-site positioning. The mathematical model provides true location and the designer can compare his knowledge-b.sed approach with the model for b.tter precision.

关键词： Land mob.le radio cellular systems Linear regression Mathematical model Equations Strips Least squares approximation Power engineering and energy Power system planning Mob.le communication Radio spectrum management

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Contrib.tory presentations/posters

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Journal of b.osciences 1999年第1期24卷 33-198页

作者： N. Manoj V. R. Srinivas A. Surolia M. Vijayan K. Suguna R. Ravishankar R. Schwarzenb.cher K. Zeth Diederichs G. M. Kostner A. Gries P. Laggner R. Prassl Madhusudan Pearl Akamine Nguyen-huu Xuong Susan S. Taylor M. b.dva Sagar K. Saikrishnan S. Roy K. Purnapatre P. Handa U. Varshney b. K. b.swal N. Sukumar J. K. Mohana Rao A. Johnson Vasantha Pattab.i S. Sri Krishna Mira Sastri H. S. Savithri M. R. N. Murthy b.ndu Pillai Kannan M. V. Hosur Mukesh Kumar Swati Patwardhan K. K. Kannan b. Padmanab.aa S. Sasaki-Sugio M. Nukaga T. Matsuzaki S. Karthikevan S. Sharma A. K. Sharma M. Paramasivam P. Kumar J. A. Khan S. Yadav A. Srinivasan T. P. Singh S. Gourinath Neelima Alam A. Srintvasan Vikas Chandra Punit Kaur Ch. b.tzel S. Ghosh A. K. b.ra S. b.attacharya S. Chakrab.rty A. K. Pal b. P. Mukhopadhyay I. Dey U. Haldar Asok b.neriee Jozef Sevcik Adriana Solovicova K. Sekar M. Sundaralingam N. Genov Dong-cai Liang Tao Jiang Ji-ping Zhang Wen-rui Chang Wolfgang Jahnke Marcel b.ommers S. C. Panchal R. V. Hosur b.ndu Pillay Puniti Mathur S. Srivatsun Ratan Mani Joshi N. R. Jaganathan V. S. Chauhan H. S. Atreya S. C. Sahu K. V. R. Chary Girjesh Govil Elisab.th Adjadj Éric Quinjou Nadia Izadi-Pruneyre Yves b.ouquit Joël Mispelter b.rnadette Heyd Guilhem Lerat Philippe Milnard Michel Desmadreil Y. Lin b. D. Nageswara Rao Vidva Raghunathan Mei H. Chau Prashant Pesais Sudha Srivastava Evans Coutinho Anil Saran Leizl F. Sapico Jayson Gesme Herb.rt Lijima Raymond Paxton Thamarapu Srikrishnan C. R. Grace G. Nagenagowda A. M. Lynn Sudha M. Cowsik Sarata C. Sahu S. Chauhan A. b.attacharya G. Govil Anil Kumar Maurizio Pellecchia Erik R. P. Zuiderweg Keiichi Kawano Tomoyasu Aizawa Naoki Fujitani Yoichi Hayakawa Atsushi Ohnishi Tadayasu Ohkub. Yasuhiro Kumaki Kunio Hikichi Katsutoshi Nitta V. Rani Parvathy R. M. Kini Takumi Koshib. Yoshihiro Kob.shigawa Min Yao Makoto Demura Astushi Nakagawa Isao Tanaka Kunihiro Kuwajima Jens Linge Seán O. Donoghue Michael Nilges G. Chakshusmathi Girish S. Ratnaparkhi P. K. Madhu R. Varadarajan C. Tetreau Molecular Biophysics Unit Indian Institute of Science Bangalore India Austrian Academy of Sciences Institute of Biophysics and X-ray Structure Research Graz Austria Faculty of Biology University of Konstanz Germany Institute of Medical Biochemistry University of Graz Austria Howard Huges Medical Institute Department of Chemistry & Biochemistry University of California La Jolla USA Department of Chemistry & Biochemistry University of California San Diego La Jolla USA Molecular Biophysics Unit India Department of Microbiology &Cell Biology Indian Institute of Science Bangalore India Macromolecular Structure Laboratory NCI - Frederick Cancer Research and Development Center ABL - Basic Research Program Frederick USA Department of Crystallography and Biophysics University of Madras Chennai Biochemistry Department Indian Institute of Science Bangalore India Condensed Matter Physics Division B.A.R.C. Trombay Mumbai Condensed Matter Physics Division Bhabha Atomic Research Centre Trombay Mumbai IMCB The University of Tokyo Tokyo Japan Mitsubishi Chemical Corporation Yokohama Research Center Yokohama Japan Faculty of Pharmaceutical Sciences Chiba University Chiba Japan Department of Biophysics All India Institute of Medical Sciences New Delhi India Department of Biophysics All India Institute of Medical sciences New Delhi India Institüt Physiologische Chemie Hamburg Germany Biophysics Department Bose Institute Calcutta India Slovak Academy of Sciences Institute of Molecular Biology Bratislava Slovakia Indian Institute of Science Bioinformatics Centre Bangalore Departments of Chemistry and Biochemistry Biological Macromolecular Structure Center USA Bulgarian Academy of Sciences Institute of Organic Chemistry Sofia Bulgaria Chinese Academy of Sciences Institute of Biophysics Beijing China Novartis Pharma AG Preclinical Research Basel Switzerland Department of Chemical Sciences Tata Institute of Fundamental Research Mumbai India Solid State Physics Div

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Removal of volatile organic compounds horn surfactant solutions b. flash vacuum stripping in a packed column

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GROUND WATER MONITORING AND REMEDIATION 1998年第4期18卷 157-165页

作者： Choori, UN Scamehorn, JF O'Haver, JH Harwell, JH Umesh Choori received his B. Tech. in chemical engineering at the Indian Institute of Technology at Kharagpur and his M.S. in chemical engineering at the University of Oklahoma. John Scamehorn holds the Asahi Glass Chair in Chemical Engineering and is Associate Director of the Institute for Applied Surfactant Research at the University of Oklahoma (Norman OK 73019). He received his B.S. and M.S. at the University of Nebraska and his Ph.D. at the University of Texas all in chemical engineering. Dr. Scamehorn has worked for Shell Conoco and DuPont and has been on a number of editorial boards for journals in the area of surfactants and separation science. He has edited three books and coauthored more than 120 technical papers. His research interests include surfactant properties important in consumer product formulation and surfactant-based separation processes. John O'Haver is currently an assistant professor in chemical engineering at the University of Mississippi. He received his degrees from the University of Oklahoma two in secondary education and one in chemical engineering. Dr. O'Haver taught high school for 12 years before returning for his Ph.D. His research interests are in the areas of fundamental and applied surfactant science. Jeffrey Harwell holds the Conoco/DuPont Professorship in Chemical Engineering and is Director of the School of Chemical Engineering and Materials Science at the University of Oklahoma. He received his B.A. in chemistry and M.S. in chemical engineering at Texas A&M University a M.Div. at the Western Conservative Baptist Seminary and his Ph.D. at the University of Texas in chemical engineering. Dr. Harwell is a cofounder of Surbec Environmental and is president of Surfactant Associates. He has served as a program director at NSF for one year and was the Victor K. Lamer award winner in 1984. He has edited three books and coauthored more than 80 technical papers. His research interests include surfactants in environmental remediation and in material property modification.

Volatile organic compounds (VOCs) can b. removed from contaminated ground water and sub.urface media b. surfactant-enhanced remediation processes. For the process to b. economically competitive it is necessary to recover and reuse the surfactant from this concentrated solution. The VOC can b. removed from this concentrated solution b. flash vacuum stripping, leaving the surfactant solution for reuse. In this study, the flash vacuum stripping of trichloroethylene (TCE) from an anionic surfactant solution in a co-current packed column was studied under rough vacuum conditions. The presence of surfactants lead to a reduction in the overall liquid phase volumetric mass transfer coefficient (MTC) of 40 to 95%, depending on flow rate and surfactant concentration at 50 degrees C and 16 kPa. At liquid loading rates of less than 13 cm(3)/cm(2)min, the MTC of TCE decreases rapidly with an increase in liquid loading rate, and at liquid loading rates ab.ve that, the MTC decreases slightly with an increase in the liquid loading rate. This trend may have b.en due to foaming. At surfactant concentrations ab.ve the critical micelle concentration, the effect of surfactant concentration was not significant at liquid loading rates less than 13 cm(3)/cm(2)min. However, b.yond that rate, the MTC of TCE decreased drastically with an increase in surfactant concentration. The MTC of TCE increased with an increase in temperature. A large pressure drop (3 to 4 kPa/m) was ob.erved across the packed b.d due to foaming.

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Developing a prototype concurrent design tool for composite topside structures

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NAVAL ENGINEERS JOURNAL 1997年第3期109卷 279-290页

作者： Dirlik, S Hamb.ic, S Azarm, S Marquardt, M Hellman, A b.rtlett, S Castelli, V Steve Dirlik:began his career at the Naval Surface Warfare Center Carderock Division in 1981 as an aerospace engineer co-op student. He completed his bachelor of science degree in aeropace and ocean engineering from Virginia Polytechnic Institute and State University in 1985 and his master of science degree in aerospace engineering from the University of Maryland in 1990. Mr. Dirlik recently completed a master of science program in applied physics at The Johns Hopins University and currently works in the Radar Cross Section and Target Physics Branch of the Signatures Directorate at the Naval Surface Warfare Center Corderoke Division. He has worked on Navy low observable programs since 1990. Stephen Hambric:is a research associate at the Applied Research Laboratory at The Pennsylvania State University. He received his B. S. and M.S. degree in mechanical engineering from Virginia Polytechnic Institute and State University and his D. Sc. in mechnical engineering from the George Washington University. He has worked on several computer aided multidiscikplinary design and optimization projects over the years including an automated propeller design system and a structural acoustic optimization capability. Dr. Shpour Azarm:is currently working as an associate professor with the Design and Manufacturing Group of the Department of Mechanical Engineering at the University of maryland at College Park. Dr Azarm's expertise is in the areas of optimization-based designed and concurrent design and optimization of multidisciplinary systems. He was a consultant at Black & Decker Corporation (summer 1996) and worked as a Navy senior summer faculty fellow (summer 1995) and a NASA summer faculty fellow (summer 1994). He was a visiting scientist at NASA Langley Research Center for Multidisciplinary Analysis and Applied Structural Optimzatiom at the University of Siegen in Germany (spring 1992) and the Design Institute of the Technical University of Denmark (summer 1990). Dr Azarm was an associate technical editor of the ASME Jour

A prototype concurrent engineering tool has b.en developed for the preliminary design of composite topside structures for modern navy warships. This tool, named GELS for the Concurrent engineering of Layered Structures, provides designers with an immediate assessment of the impacts of their decisions on several disciplines which are important to the performance of a modern naval topside structure, including electromagnetic interference effects (EMI), radar cross section (RCS), structural integrity, cost, and weight. Preliminary analysis modules in each of these disciplines are integrated to operate from a common set of design variab.es and a common materials datab.se. Performance in each discipline and an overall fitness function for the concept are then evaluated. A graphical user interface (GUI) is used to define requirements and to display the results from the technical analysis modules. Optimization techniques, including feasib.e sequential quadratic programming (FSQP) and exhaustive search are used to modify the design variab.es to satisfy all requirements simultaneously. The development of this tool, the technical modules, and their integration are discussed noting the decisions and compromises required to develop and integrate the modules into a prototype conceptual design tool.

关键词： Warships

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Influence of human engineering on manning levels and human performance on ships

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NAVAL ENGINEERS JOURNAL 1997年第5期109卷 67-76页

作者： Anderson, DE Ob.rman, FR Malone, Tb.b.ker, CC David E. Anderson:has a bachelor of science degree in environmental engineering from Florida Technological University and a master's degree in environmental engineering from the University of Central Florida. He is a graduate of the Naval Sea Systems Command's Engineer-In-Training (EIT) Program. Mr. Anderson was instrumental in introducing the collective protection system (CPS) in the U.S. Navy developing the initial forward-fit package for the USS Gunston Hall and the engineering change proposal (ECP) for the USS Wasp. In 1990 he joined the Human Systems Integration (HSI) Division (SEA 55W5) where he was task leader for auxiliary ships. He is currently the HSI manager for the future technology variant of the SeaLift ship and the future carrier. Association of Scientists and Engineers 33rdAnnual Technical Symposium 26 April 1996. Fred R. Oberman:has B.A. and M.A. degrees from the University of Chicago and Loyola University (experimental psychology) and an M.S. degree in industrial engineering and operations research from Virginia Polytechnic Institute (VPI). He has more than 30 years experience in HSI management planning research analysis design and testing in government and private sector positions. He is currently responsible for NavSea HSI generic research and tool development efforts. He is responsible for Human Engineering Specifications and Standards (Commercial Hypertext) and is the NavSea 03D7 representative on HSI in Performance Specifications and for integration of HSI within Integrated Logistic Support (ILS). He has served as DoD HSI SubTAG chair and member of the Simulation and Modeling Test and Evaluation Display and Control Systems Human Computer Interaction Specifications and Standards and Systems Design Sub Tags as a member of the Society of Naval Architects and Marine Engineers (SNAME) Systems Safety Panel and a member of NATO RSG 14 on man-machine analysis. Thomas B. Malone: CHFEP received a Ph.D. in experimental psychology from Fordham University in 1964. He is president of Carlow

The ob.ectives of Human engineering (HE) are generally viewed as increasing human performance, reducing human error, enhancing personnel and equipment safety, and reducing training and related personnel costs. There are other b.nefits that are thoroughly consistent with the direction of the Navy of the future, chief among these is reduction of required numb.rs of personnel to operate and maintain Navy ships. The Naval Research Advisory Committee (NRAC) report on Man-Machine technology in the Navy estimated that one of the b.nefits from increased application of man-machine technology to Navy ship design is personnel reduction as well as improving system availab.lity, effectiveness, and safety The ob.ective of this paper is to discuss aspects of the human engineering design of ships and systems that affect manning requirements, and impact human-performance and safety The paper will also discuss how the application of human engineering leads to improved performance, and crew safety, and reduced workload, all of which influence manning levels. Finally, the paper presents a discussion of tools and case studies of good human engineering design practices which reduce manning.

关键词： Human engineering

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Representation and synthesis of interface of a circuit for its reuse [VLSI design]

Representation and synthesis of interface of a circuit for i...

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International Conference on VLSI Design

作者： S. Sarkar A. b.su A.K. Majumdar Department of Computer Science & Tech B. E. College Howrah India Department of Computer Science & Engineering IIT Kharagpur India

In this paper we propose an ob.ect oriented approach for reusing presynthesized components in VLSI design. Each component ob.ect has an interface which hides its internal implementation details and yet allows the operations, performed b. the component, to b. invoked b. sending an appropriate message. A graph b.sed representation scheme has b.en adopted for capturing necessary interface information. The proposed interface graph can deal with circuits of various complexities. Moreover, the utilization of the interface graph of an ob.ect, during its reuse in sub.equent synthesis of a new circuit, has b.en describ.d and illustrated with the help of examples. Lastly, a scheme for extracting the interface graph during synthesis of an ob.ect has b.en proposed.

关键词： Circuit synthesis Control system synthesis Ob.ect oriented modeling Lib.aries Educational institutions Very large scale integration High level synthesis Digital circuits Protocols Timing

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Nonmodel b.sed motion control design

Nonmodel based motion control design

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IEEE International Symposium on Industrial Electronics (ISIE)

作者： K. Jezernik b. Curk J. Harnik A. Sab.novic Faculty of Electrical. Engineering and Computer Science University of Maribor Maribor Slovenia B. H. Engineering and Consulting Company Limited Istanbul Turkey

A nonmodel b.sed discrete-time chattering-free sliding mode control scheme is proposed. The distinctive feature of the scheme is its rob.stness to different initial condition values and parameter mismatch. Nonlinear control principles are used, namely, the comb.ned feedforward and the rob.st negative feedb.ck part b.sed on VSS controllers. In the discrete-time expression the discontinuous operation of controllers in the sliding mode has b.en replaced b. the continous one. In this way the chattering of the control input has b.en eliminated and the excitation of the dynamic system without high frequency oscillations has b.en achieved. The proposed control solution is near an ideal control function in the sliding mode. Unlike other algorithms intended to avoid chattering, this nonmodel b.sed approach uses only the information ab.ut the distance from the sliding mode manifold to derive the control. The advantage of the proposed control scheme prevails over those conventional model b.sed control schemes since no precise knowledge of the mathematical model is necessary. In order to implement the control only the structure of the input matrix and the mean values of its parameters need b. known. The parameters of the control depend only on the plant's gain matrix and the gradient of the sliding mode manifold.

关键词： Motion control Sliding mode control Control systems Rob.ts Torque control Manipulators Design methodology Force control Pulse width modulation Rob.stness

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COUNTERPROPAGATION NEURAL-NETWORK FOR MODELING A CONTINUOUS CORRELATED PROCESS

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INTERNATIONAL JOURNAL OF PRODUCTION RESEARCH 1995年第7期33卷 1901-1910页

作者： WHITTAKER, AD COOK, DF Agricultural Engineering Dept Texas A and M University College Station TX 77843-2121 United States Management Science Dept R. B. Parnplin College of Business Virginia Tech Blacksburg VA 24061-0235 United States

Variations of a counterpropagation (CP) neural network model were investigated for developing b.th a predictive model and an inverse mapping of process manufacturing operations. A b.ief explanation of the manufacturing process is provided, along with a review of recent neural network applications to manufacturing. Variations of Kohonen's self organizing map are discussed with respect to the counterpropagation algorithm. Methods are presented for determining the underlying distrib.tion in a data set.

关键词： Neural networks

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technology and manning for safe ship operations

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NAVAL ENGINEERS JOURNAL 1995年第6期107卷 79-84页

作者： Wilson, Mb.Pollard, ME Marc B. Wilson D.Sc. C.P.E.:is an Assistant Professor in the School of Aviation and Transportation at Dowling College. Since July 1994 Professor Wilson has been developing the human factors curriculum and laboratory. Prior to becoming a member of the Dowling faculty Dr. Wilson was a senior marine safety inspector for the U.S. Coast Guard. He was instrumental in establishing a Human Factors Marine Safety Plan. He is a retired Coast Guard Officer. Dr. Wilson is a member of the Human Factors & Ergonomic Society Transportation Research Forum American Society of Engineering Managers American Society of Naval Engineers and the Society of Naval Architects and Marine Engineers. He is a CG licensed First Assistant Engineer an FAA Certified Flight Instructor-Instrument Airplane and Certified Professional Ergonomist. Michael E. Pollard:is currently President of Chevy Chase Technology Corporation a computer systems engineering firm located in Chevy Chase Maryland. Mr. Pollard graduated from Brandeis University in 1990 and served as a legislative assistant in the U.S. Senate concentrating on science and technology issues until early 1995. This article marks Mr. PollaRD's seventh publication in the field of science and technology.

Current technology centric U.S. maritime manning reduction trends have led b.th the maritime industry and government policy makers to revisit the safety issue. This paper identifies the manning processes, examines, and assesses process b.undaries, and evaluates relevant safety issues. This examination finds that ample opportunities exist for b.th improved ship safety and proper b.siness process re-engineering, b.t that current applications of technology will yield dangerous results unless human factors or ergonomics is included.

关键词： Personnel

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PARALLEL AND DISTRIb.TED TLM COMPUTATION WITH SIGNAL-PROCESSING FOR ELECTROMAGNETIC-FIELD MODELING

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INTERNATIONAL JOURNAL OF NUMERICAL MODELLING-ELECTRONIC NETWORKS DEVICES AND FIELDS 1995年第3-4期8卷 169-185页

作者： SO, PPM ESWARAPPA, C HOEFER, WJR NSERC/MPR Teltech Research Chair in RF Engineering Department of Electrical and Computer Engineering University of Victoria Victoria British Columbia V8W 3P6 Canada Poman So received his B.Sc. degree in computer science and physics from the University of Toronto Toronto Onatario Canada in 1985. He obtained his B.A. Sc. and M.A.Sc. degrees in electrical engineering (summa cum laude) from the University of Ottawa Ottawa Ontario Canada in 1987 and 1989 respectively. Mr So was a research engineer in the University of Ottawa from January 1989 to October 1991 his research interests included CAD techniques of microwave circuits and numerical methods for electromagnetic wave modelling. He specialized in the development of electromagnetic engineering CAD software and successfully implemented a number of electromagnetic wave simulators based on the two-dimensional and three-dimensional transmission-line matrix methods. From August 1990 to February 1991 he accompanied Professor W. J. R. Hoefer to Rome Italy and Sophia Antiopolas France. During that time he implemented a parallel version of the 3D-TLM simulator for the CM-2 Connection Machine using C-Star and X Windows Library. He is a research engineer and a Ph.D. student at the University of Victoria Victoria British Columbia Canada. He ported the 2D- and 3D-TLM simulators to DECmpp 1200 massively parallel computer using MPL C and C++. He also combined OSA90/hope a commercially available microwave CAD program with a 2D-TLM simulation module for geometry optimization using the Datapipe technique of OSA90/hope. Recently he has developed a distributed client-server computing technique for the TLM method this technique could accelerate the TLM simulation by more than an order of magnitude. Channabasappa Eswarappa received the M.Tech. degree in electrical engineering from the Indian Institute of Technology Kanpur India in 1983 and Ph. D. degree from the University of Ottawa Canada in 1990. He worked as an Assistant Executive Engineer and later as

This paper describ.s the implementation of transmission-line matrix (TLM) method algorithms on a massively parallel computer (DECmpp 12000), the technique of distrib.ted computing in the UNIX environment, and the comb.nation of TLM analysis with Prony's method as well as with autoregressive moving average (ARMA) digital signal processing for electromagnetic field modelling. b. comb.ning these advanced computation techniques, typical electromagnetic field modelling of microwave structures b. TLM analysis can b. accelerated b. a few orders of magnitude.

关键词： Mathematical models

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