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Conference on Lasers and Electro-Optics Europe (CLEO EUROPE)

作者： J.G. Keating J. Halligan K. Adamson D.J. Gleeson S.M.P. McKema-Lawlor M. Klima Software Tools Group Department of Computer Science St. Patrick's College Maynooth Co. Kildare Ireland Faculty of Informatics University of Ulster Shore Road Newtownabbey Co. Antrim BT37 OQB Northern Ireland Space Technology (Ireland) Ltd. Industrial Park St. Patrick's College Maynooth Co. Kildare Ireland Department of Radioelectronics Faculty of Electrical Engineering Czech Technical University 166 27 Praha 6 Czech Republic

Classical signal processing functions such as spectrum analysis, correlation, convolution, filtering, mixing, and noise reduction can be performed optically using optical signal processing devices and systems. The signal media, i.e., light waves, not only have a higher information-carrying capacity than electrical wires, but may pass through each other without interference, thus providing an increased interconnection capacity. This property facilitates improved communication and ease of reconfiguration between processing elements in highly parallel optical computing architectures.1

关键词： software tools Optical signal processing High speed optical techniques Thyristors Optical saturation Optical interconnections Logic circuits Photonics Electron optics Hardware

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Educational use of a microwave electromagnetic analysis of 3-D planar structures

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computer Applications in engineering Education 1993年第3期1卷 243-243页

作者： Rautio, J.C. Sonnet Software Inc. Suite 203 135 Old Cove Road Liverpool NY 13090 Dr. James C. Rautio:founded Sonnet Software a developer of 3-D planar electromagnetic microwave software in 1983 with support from the David Sarnoff Research Center Hewlett Packard General Electric and Syracuse University. He has served as a visiting member of the faculty at Syracuse University and as an adjunct faculty member at Cornell University teaching microwave and computer courses as well as pursuing research in electromagnetics. Dr. Rautio previously worked in General Electric's Space Division and Electronics Laboratory. He designed microwave circuits including filters for a Landsat receiver and various GaAs microwave integrated circuits. He also developed microwave and millimeter wave automated measurement equipment and wrote a large microwave circuit analysis program. Dr. Rautio holds a BS in Electrical Engineering from Cornell University an MS in Systems Engineering from the University of Pennsylvania and a PhD in Electrical Engineering from Syracuse University

The use of an electromagnetic analysis of 3-D planar structures is described with respect to the educational requirements of students from the college freshman level through the graduate level. The analysis is intended primarily for microwave use; however, there is also significant potential interest from the student of high speed digital design. The analysis is used for passive planar circuits with any number of layers. The third dimension is represented by vias. A mature graphical user interface is provided allowing rapid capture of structure geometry, color visualization, and animation of the resulting current distributions. The software is also explicitly designed to work in conjunction with popular circuit theory based microwave software and with SPICE.

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Interactive video lessons for electromagnetic education

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computer Applications in engineering Education 1993年第2期1卷 147-147页

作者： Iskander, M.F. Reed, T. Breen, J. III. Electrical Engineering Department University of Utah Salt Lake City Utah 84112 Dr. Iskander edited two special issues of theJournal of Microwave Power one on “Electromagnetics and Energy Applications” March 1983 and the other on “Electromagnetic Techniques in Medical Diagnosis and Imaging” September 1983. He authored one book onElectromagnetic Fields and Waves published by Prentice Hall 1992 he edited theCAEME Software Book Vol. I 1991 and coedited two books onMicrowave Processing of Materials one published by the Materials Research Society in 1991 and the second to be published in 1992. The holder of seven patents he has contributed 16 chapters to eight research books published more than 100 papers in technical journals and made numerous presentations in technical conferences. In 1983 he received the College of Engineering Outstanding Teaching Award and the College Patent Award for creative innovative and practical invention. In 1984 he was selected by the Utah Section of the IEEE as the Engineer of the Year. In 1984 he received the Outstanding Paper Award from the International Microwave Power Institute and in 1985 he received the Curtis W. McGraw ASEE National Research Award for outstanding early achievements by a university faculty member. In 1991 he received the ASEE George Westinghouse National Award for innovation in Engineering Education. He also received the 1992 Richard R. Stoddard Award from the IEEE EMC Society. In 1986 Dr. Iskander established the Engineering Clinic Program in the College of Engineering at the University of Utah. Since then the program has attracted more than 45 research projects from 18 different companies throughout the United States. He is also the director of the NSF/IEEE Center for Computer Applications in Electromagnetics Education (CAEME). He coorganized symposia on “Microwave Processing of Materials” held in conjunction with Materials Research Society meetings Springs of 1990 and 1992 in San Francisco. He also organized several workshops and special

With the availability of a large number of software packages for electromagnetic (EM) education through the national computer Applications in Electromagnetic Education (CAEME) Center [1] and other individual efforts, there have been some concerns regarding the ability to integrate this software effectively in routine classroom teaching. Basically, congested EM curricula do not provide instructors with sufficient time to include software demonstrations and simulations during class periods. It is also not clear whether students will be able, adequately and independently, to understand basic underlying concepts and physical phenomena from visualization of colorful graphics and from the output of performed simulations. To help integrate available EM software in classroom teaching for both instructor use and student independent study, CAEME developed three interactive video lessons for student instruction. Interactive media lessons integrate and allow individuals to interactively manipulate information from multimedia such as video, software, and animated graphics, and also include instructional information such as quizzes and tutorials. In this article, we present the features of three interactive video lessons in EM developed by CAEME. These lessons include tutorials, simulations from CAEME software and videos, and quizzes to evaluate student understanding. The lessons use animated graphics illustrating specific dynamic phenomena and specific measurement procedures. They also keep a record of student quiz scores for instructor use. These, as well as other features of the three developed interactive video lessons, and the software and hardware requirements for developing such lessons, will be described.

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A computer Based Stabilizer for Low Frequency Mechanical Vibrations in Satellite Sensors : The Theoretical Basis

A Computer Based Stabilizer for Low Frequency Mechanical Vib...

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IEEE Conference on Electromagnetic Field Computation

作者： T. Kirubarajan P.R.P. Hoole Department of Computer Sciences Faculty of Engineering University of Peradeniya Peradeniya Sri Lanka Syatems Senoing and Software Group Department of Electrical and Electronic Engineering Faculty of Engineering University of Peradeniya Peradeniya Sri Lanka

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Arrays. A software package for analysis of antenna arrays

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computer Applications in engineering Education 1992年第1期1卷 109-109页

作者： Elsherbeni, A.Z. Ginn, P.H. Electrical Engineering Department University of Mississippi University Mississippi 38677 Dr. Atef Z. Elsherbeni:received an honorary BSc in Electronics and Communications an honorary BSc in Applied Physics and an MEng in Electrical Engineering all from Cairo University Cairo Egypt in 1976 1979 and 1982 respectively. He also received a PhD in Electrical Engineering from Manitoba University Winnipeg Manitoba Canada in 1987. He was a research assistant with the faculty of Engineering at Cairo University from 1976 to 1982 and at the Electrical Engineering Department Manitoba University from 1983 to 1986 and a Postdoctoral fellow in the same department from January to August 1987. He joined the faculty at the University of Mississippi in August 1987 where he is currently an Associate Professor of Electrical Engineering. During the last few years he was involved in developing software for undergraduate education related to electromagnetic waves and antenna design courses. His professional interests include microstrip antennas scattering and diffraction of electromagnetic waves numerical techniques and computer applications for electromagnetics education. He has authored or coauthored over 80 technical papers and reports on applied electromagnetics antenna design and microwave subjects. Dr. Elsherbeni is a senior member of the Institute of Electrical and Electronics Engineers (IEEE) belonging to the Antennas and Propagation Microwave Theory and Techniques and Magnetics Societies. His honorary memberships include the Electromagnetics Academy and the Scientific Sigma Xi Society. Patrick Ginn:was born in Corinth Mississippi on June 30 1969. Mr. Ginn attended Kossuth High School where he was awarded the STAR student award. He attended Northeast Mississippi Junior College from 1987 to 1989. In 1989 he began attending the University of Mississippi. He is currently enrolled as an undergraduate in the Electrical Engineering Department. Mr. Ginn expects to receive his BSEE in August 1992. He has r

This article describes a software package useful for the instruction of antenna array theory. The program provides the radiation pattern of different types of antennas, the array factor of linear, two-dimensional and three-dimensional arrays, and the total radiation pattern. The elements of the array are isotropic source, Hertzian dipole, straight thin wire dipole, and finite line source with uniform current distribution. The user has the freedom to choose one of the supported element types or to provide the pattern of an antenna element based on experimental or calculated data. This article serves as a tutorial for selected examples as well as a quick guide for the use of this software.

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NSF/IEEE CAEME center. An exciting opportunity to align electromagnetic education with the nineties

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computer Applications in engineering Education 1992年第1期1卷 33-33页

作者： Iskander, M.F. CAEME Director Electrical Engineering Department University of Utah Salt Lake City Utah 84112 Dr. Iskander edited two special issues of theJournal of Microwave Power one on “Electromagnetics and Energy Applications” March 1983 and the other on “Electromagnetic Techniques in Medical Diagnosis and Imaging” September 1983. He authored one book onElectromagnetic Fields and Waves published by Prentice Hall in 1992 he edited theCAEME Software Book Vol. I 1991 and he coedited a third book onMicrowave Processing of Materials published by the Materials Research Society in 1991. The holder of seven patents he has contributed 16 chapters to eight research books published more than 90 papers in technical journals and made numerous presentations in technical conferences. In 1983 he received the College of Engineering Outstanding Teaching Award and the College Patent Award for creative innovative and practical invention. In 1984 he was selected by the Utah Section of the IEEE as Engineer of the Year. In 1984 he received the Outstanding Paper Award from the International Microwave Power Institute and in 1985 he received the Curtis W. McGraw ASEE National Research Award for outstanding early achievements by a university faculty member. In 1991 he received the ASEE George Westinghouse National Award for innovation in engineering education. In 1986 Dr. Iskander established the Engineering Clinic Program in the College of Engineering at the University of Utah. Since then the program has attracted more than 45 research projects from 18 companies throughout the United States. He is also the director of the NSF/IEEE Center for Computer Applications in Electromagnetics Education (CAEME). He co-organized symposia on “Microwave Processing of Materials” held in conjunction with Materials Research Society meetings in the Springs of 1990 and 1992 in San Francisco. He also organized several workshops and special sessions in conjunction with IEEE symposia. Dr. Iskander is the editor of the journalComputer Applications i

The National Science Foundation/Institute of Electrical and Electronic Engineers (NSF/IEEE) Center for computer Applications in Electromagnetic (EM) Education (CAEME) was funded in early 1990 by the National Science Foundation to stimulate and accelerate the use of computers and software tools in EM education. The Center is managed by the Executive Office of IEEE on behalf of the Antennas and Propagation Society. This organizational structure provided avenues for broad participation by universities, professional societies, and corporations in the Center's activities. In two years of operation, CAEME has organized several workshops and special sessions in international meetings, published its first software book, prepared a lesson on “Electromagnetic Waves” using interactive video, and raised over $ 130,000 from university membership, participating societies, and corporate sponsors. This article summarizes CAEME activities, outlines its organizational structure, and briefly describes the contents of its first software book. Future developments are discussed and avenues for participation are outlined.

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Preliminary arrangements of arguments in lazy evaluation

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New Generation Computing 1991年第2期9卷 135-147页

作者： Husheng, Liao Takeichi, Masato Department of Software Engineering Beijing Computer Institute Beijing No. 24 Xi-San-Huan-Bei Road China Department of Mathematical Engineering Faculty of Engineering University of Tokyo Tokyo 113 Bunkyo-ku Japan

This paper describes a new implementation technique called preliminary arrangements of arguments for lazy functional languages. Unlike conventional lazy evaluators, the evaluator with preliminary arrangements partly processes every argument before calling functions. It works in a lazy way with less memory cells than conventional methods. The practical importance of this technique is demonstrated by some benchmark results. © 1991 Ohmsha, Ltd. and Springer.

关键词： Functional Language Lazy Evaluation SECD Machine

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A high-speed packet switch architecture with a multichannel bandwidth allocation

A high-speed packet switch architecture with a multichannel ...

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IEEE Annual Joint Conference: INFOCOM, IEEE computer and Communications Societies

作者： K. Ohtsuki K. Takemura J.F. Kurose H. Okada Y. Tezuka College of Liberal Arts Kobe University Japan Mitsubishi Electric Microcomputer Application Software Company Limited Japan Department of Computer and Information Science University of Massachusetts USA Faculty of Engineering Osaka University Japan

A novel packet switch architecture is proposed based on a channel grouped virtual circuit (CG-VC) scheme for high-speed communication networks. The case is considered in which there are several parallel channels between two switching nodes. The CG-VC scheme allows a packet to select an available channel in such a way as to avoid congested channels using a simple, hardware-based, self-routing mechanism. As a result, the architecture provides efficient channel use and low switching delay. The performance of the proposed switch is evaluated by simulation. The results show the proposed switch significantly improves channel utilization and switching delay compared with conventional single-channel allocation transmission policies.< >

关键词： Packet switching Channel allocation Optical switches Routing Delay computer architecture Optical fibers Bandwidth Contracts Educational institutions

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Two-level grammar: Data flow English for functional and logic programming 88

Two-level grammar: Data flow English for functional and logi...

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16th ACM Annual Conference on computer Science, CSC 1988

作者： Bryant, Barrett R. Edupuganty, Balanjaninath Sundararaghavan, K.R. Takaoka, Tadao Department of Computer and Information Sciences University of Alabama at Birmingham BirminghamAL35294 United States Department of Information Science Faculty of Engineering Ibaraki University Hitachi Ibaraki316 Japan Software Leverage Inc. 485 Massachusetts Avenue ArlingtonMA02174 United States MTB Computer Consulting Corporation 4151 Ashford Dunwoody Road AtlantaGA30319 United States

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VARIATION OF INTENSITY OF ENVIRONMENTAL GAMMA-RAYS MEASURED WITH GE(LI) SPECTROMETER

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JOURNAL OF NUCLEAR SCIENCE AND TECHNOLOGY 1982年第11期19卷 918-927页

作者： KATASE, A NARAHARA, Y ISHIHARA, Y TANAKA, K MATSUYAMA, H Faculty of Engineering Kyushu University Mitsui Shipbuilding Co. Ltd. Hitachi Computer Co. Ltd. Japan Software Developing Co. Ltd. Toyo Corp.

The variation of the intensity of environmental γ-rays has been studied with a Ge(Li) spectrometer. The 12 γ-rays were selected to be examined and typical characteristics of variations were obtained for each γ-ray. The intensity of γ-rays of 214Pb and 214Bi which are 222Rn daughter nuclei increases on rainy days to the severalfold value of the average in the case of no precipitation. These variations were observed to be roughly proportional to rainfall rate in a sequence of precipitation. The γ-ray intensity of nuclides of the thorium series and 137Cs is nearly constant within about 3% regardless of the weather. Its variation is about equal to the statistical fluctuation of the present measurements. The mean diurnal variations of γ-ray intensity were obtained on days without precipitation. The intensity of 214Pb and 214Bi γ-rays fluctuates nearly sinusoidally with an amplitude of about 6% of the average value and the maximum in the early morning.

关键词： environmental gamma radiation variation lead 214 bismuth 214 cesium 137 environmental monitoring nuclear facilities leaks diurnal variations concentrations rainfall

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