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A user interface metaphor for distributed systems

Electronics and communications in Japan (Part III: Fundamental Electronic science) 1998年第11期80卷

作者： Kiwamu Sato Norio Shiratori Hiroshi Nunokawa Takashi Kusumi Syoichi Noguchi Research Institute of Electrical Communication Tohoku University Sendai Japan 980-77 Research Institute for Science Education Miyagi University of Education Aoba Sendai Japan 980 Tokyo Institute of Technology Tokyo Japan 152 Faculty of Technology Nihon University Kooriyama Japan 963

This paper aims at the construction of a user interface that provides a metaphor for utilizing a large-scale and complex system such as a distributed system. The engineering and cognitive analysis of the distributed system is presented from the viewpoint of the user. A cognitive engineering model for the metaphor is proposed as a technique to design a metaphor satisfying the following conditions for the large and complex system: (1) representation with consistency that can describe all scenes and functions of the distributed system; (2) flexibility such as expandibility and dynamic representation; (3) engineering adaptability to the existing services on the distributed system. A user interface (UI) metaphor model with three metaphor mappings is proposed based on the concepts of metaphor mapping and the structurization. UI based on the proposed model is actually implemented on the distributed system, and the role of the metaphor in the distributed system interpretation is evaluated. © 1997 Scripta Technica, Inc. Electron Comm Jpn Pt 3, 80(11): 82–93, 1997

关键词： metaphor human interface graphical user interface distributed system

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Removal of volatile organic compounds horn surfactant solutions by 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 be removed from contaminated ground water and subsurface media by surfactant-enhanced remediation processes. For the process to be economically competitive it is necessary to recover and reuse the surfactant from this concentrated solution. The VOC can be removed from this concentrated solution by 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 above that, the MTC decreases slightly with an increase in the liquid loading rate. This trend may have been due to foaming. At surfactant concentrations above 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, beyond 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 observed across the packed bed due to foaming.

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Book Reviews

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Urban Studies 1997年第8期34卷 1309 - 1325页

作者： Roger W. Caves Hugo Priemus Derek Kerr Wray Vamplew Paul Kantor Neil Mckeganey Mike Danson Sue Brownill Cathy A. Rakowski Hugh Clout Graduate Program in City Planning San Diego State University OTB Research Institute for Policy and Technology Delft University Department of Building Engineering and Surveyin g Heriot-Watt University International Centre for Sports History and Culture De Montfort University Department of Political Science Fordham University Centre for Drug Misuse Research University of Glasgow Department of Economics University of Paisley School of Planning Oxford Brookes University Department of Agricultural Education The Ohio State University Department of Geography University College London

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A progress report on subliminal-free channels 1st

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1st International Workshop on Information Hiding, 1996

作者： Burmester, Mike Desraedt, Yvo G. Itoh, Toshiya Sakurai, Kouichi Shizuya, Hiroki Yung, Moti Department of Mathematics Royal Holloway - University of London Egham Surrey TW20 OEX United Kingdom Department of EE and CS University of Wisconsin MilwaukeeWIP.O. Box 784 United States Department of Information Processing Interdisciplinary Graduate School of Science and Engineering Tokyo Institute of Technology Midori-ku Yokohama 226 Japan Department of Computer Science and Communication Engineering Kyushu University 6-10-1 Hakozaki Higashi-kuFukuoka812-81 Japan Education Centre for Information Processing Tohoku University Kawauchi AobakuSendai980-77 Japan IBM T.J. Watson Research Centre Yorktown Hights NY10598 United States

ISBN: (纸本)9783540619963

Subliminal channels are closely related to covert channelsand are used to hide secret information. They abuse the communications resource. Subliminal channels can be introduced in many cryptographicsystems, and exploit the inherent randomness of the systems. For example, secret information can be hidden in the randomness of the authenticators of an authentication system. Similarly secret information can be hidden in the randomness (of the prover or verifier) of both zeroknowledge proof systems and signature systems. To establish a subliminal channel the cryptosystem is abused, that is, used in a different way and for a different purpose than intended by its designer. A particularly obnoxious type of subliminal channel may be activated by abortive halting. For state-of-the-art security, it may be desirable to detect, and if possible prevent, subliminal channels. In this paper we address the problem of whether it is possible to develop (and if so, how) appropriate techniquesfor detecting or preventing the use of such channels. Several such techniques have already been proposed in the literature, and are suitable for many systems. We review these. We also consider recent developments, in particular with regards to the formal security requirements and their impact on research. © Springer-Verlag Berlin Heidelberg 1996.

关键词： Authentication

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Propagation properties of Love wave-type surface-acoustic wave on alpha-quartz

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ELECTRONICS AND communicationS IN JAPAN PART II-ELECTRONICS 1996年第2期79卷 24-30页

作者： Isobe, A Hikita, M Asai, K Central Research Laboratory Hitachi Ltd. Kokubunji Japan 185 (Member) graduated from the Department of Physics Tohoku University in 1986 and completed an M.S. course in 1988. In that year he joined Hitachi Ltd. Presently he is with Hitachi Central Research Laboratory. He has been engaged in research on surface acoustic wave devices. (Member) completed the doctoral program of the Department of Electronic Engineering Hokkaido University in 1977 and remained as a research student. In 1978 he joined Hitachi Ltd. Presently he is a Senior Researcher at Hitachi Central Research Laboratory. He holds a Doctor of Engineering degree. He has been engaged in research on the electromagnetic field analysis boundary value problem of the surface acoustic wave interaction of the acoustic wave and optics high-performance SAW filter high-frequency circuit for satellite communication and mobile communication. In 1981 he received an Academic Promotion Award from I.E.I.C.E. In 1990 he received an IEEE MTT Microwave Prize Award. In 1991 he received a Kanto District Invention Award (from the Invention Society) and in 1993 a Commendation for Research Accomplishment from the Director of Science and Technology Agency. He is a senior member of IEEE. (Member) graduated from the Department of Mechanical Engineering Matsuyama Technical High School in 1984 and joined Hitachi Central Research Laboratory. In 1988 he graduated from the Department of Electronic Engineering Hitachi Keihin Technical School. Since then he has been engaged in research and development of the process technology of magnetic bubble memory and surface acoustic wave devices. Presently he is with the Communication Systems Department.

As a piezoelectric substrate for surface acoustic wave devices, the LST cut quartz has good temperature characteristics and low propagation loss. However, as the thickness of the metal electrodes on the substrate surface is increased, propagation loss also increases. Further, the electromechanical coupling coefficient is small. In this paper, a cut angle of the quartz substrate is sought that has excellent temperature stability, low propagation loss, and a large electromechanical coupling coefficient in the present of metal electrode films. For the rotated Y-cut substrate in the neighborhood of the LST cut, the propagating surface acoustic wave (SAW) merle changes from the leaky surface wave to the Love wave-type surface acoustic wave for which. no propagation loss occurs in theory while the electromechanical coupling coefficient increased to 0.5 percent at the maximum if gold is used for the electrodes and the propagation direction of the SAW is shifted from the X axis. This is shown by simulation. By experiment, it is shown that the second-order temperature coefficient is on the same order as that of the ST-cut quartz substrate.

关键词： surface acoustic wave quartz Love wave temperature characteristics

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Abstracts of papers presented at the 14th conference of the Weed science Society of Israel Abstracts of papers presented at the international conference on controlled atmosphere and fumigation (CAF) in stored products Abstracts of papers presented at the joint international conference of FAOPMA — CEPA on pest control in the 21st century Abstracts of papers presented at the 2nd international Agro-Ecology Symposium on integrated pest management: from the drawing board to the market

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Phytoparasitica 1996年第3期24卷 199-265页

作者： E. Yogev M. Berson Y. Benyamini Y. Sheinboim T. Lev-Ran A. Bahat Y. Barkai Y. Gatti M. Zaidan O. Barazani Y. Boshvize S. Graph U. Luchinsky T. Blumenfeld Y. Kleifeld G. Herzlinger H. Bucsbaum S. Golan T. Chilf R. Aly Y. Ohali A. Ovadia Y. Chachlon H. Yovel Y. Tesler G. Colodney A. Nir S. Zarka A. Tal B. Rubin T. Yaacoby Y. Alon Y. Kedar Orit Ben-Zvi Assaraf O. Shainberg H. D. Rabinowitch E. Tel-Or Y. Goldwasser D. M. Joel D. Plakhine V. Portnoy G. Tzuri N. Katzir Dalia Losner-Goshen A. M. Mayer R. Jacobsohn Z. Tanaami H. Eisenberg Ziva Amsellem Z. Kernyi L. Hornok J. Gressel Adiva Shomer-Ilan Ela Nir Daphna Michaeli V. Kampel A. Warshawsky M. Yogev M. Negbi J. Hershenhorn Y. Lavan T. Hilf M. Horowitz M. Cohen I. Hirsch A. Veneziani S. T. Conyers C. H. Bell Ana C. Sá-Fischer C. S. Adler Ch. Reichmuth P. W. Flinn D. W. Hagstrum G. N. Mbata R. G. Winks Elisabeth A. Hyne M. Q. Chaudhry A. D. MacNicoll N. R. Price M. Schöller J. -F. Dugast R. Plarre S. Navarro E. J. Donahaye R. Diaz Miriam Rindner A. Azrieli P. Trematerra F. Fontana M. Mancini Ailsa D. Hocking Marta H. Taniwaki J. Lacey A. Hamer N. Magan N. Paster F. M. Caliboso D. G. Alvindia G. C. Sabio M. T. dela Cruz Okky Setyawati Dharmaputra A. S. R. Putri M. Sidik Eleni Papademetriou A. Varnava C. Mouskos M. A. Malek B. Parveen K. A. Dzisi W. O. Ellis Ana Maria Estevez Ljubica Galletti T. Fichet E. Oteiza L. A. Lizana M. X. Gonzalez B. Yakobson Y. Slavezky H. Ephrati El-H. Bartaly R. K. Kashyap M. Gupta W. L. Kashyap B. S. Dahiya A. K. Dash J. R. Rangaswamy R. D. Shroff D. S. Jayas W. E. Muir N. D. G. White L Gaye Weller J. E. van S. Graver Wu-Kang Peng M. Bengston E. Alip C. Reed J. G. Leesch G. F. Knapp G. F. Russell L. B. Llewellin Ch. Ulrichs H. J. Banks P. C. Annis R. Allanson R. Tauscher K. Westphal S. Mohan M. Gopalan P. C. Sumdarababu V. V. Sree Narayanan Sabine Prozell G. Ziegleder B. Schartmann R. Matissek J. Kraus D. Gerard S. Rogg W. Raemann R. F. Ryan Ya-Nan Wang R. T. Noyes P. Kenkel J. T. Criswell G. W. Cuperus C. J. Waterford C. P. Whittle L. Be Luxembourg Chemicals and Agriculture Ltd. Tel Aviv Israel Agrochemicals Dept. Milchan Bros. Ltd. Ramat Gan Israel Extension Service Ministry of Agriculture Zefat Mevo Hamma Ramat HaGolan Israel Dept. of Weed Science ARO Newe Ya’ar Research Center Haifa Israel Agrochemicals Department Milchan Bros. Ltd. Ramat Gan Israel Tarsis-Agrichem Tel Aviv Israel Weed Control Co. Ltd. Bet Dagan Israel Dept. of Field Crops Vegetables and Genetics The Hebrew University of Jerusalem Faculty of Agriculture Rehovot Israel Plant Protection and Inspection Services Ministry of Agriculture Bet Dagan 50250 Agan Chemical Manufacturers Ltd. Ashdod Israel Dept. of Field Crops Vegetables and Genetics Rehovot Dept. of Agricultural Botany The Hebrew University of Jerusalem Faculty of Agriculture Rehovot Israel Dept. of Weed Science ARO Newe Ya’ar Research Center Haifa Dept. of Botany The Hebrew University of Jerusalem Jerusalem Israel Dept. of Vegetable Crops ARO The Volcani Center Bet Dagan Israel Dept. of Plant Genetics Weizmann Institute of Science Rehovot Israel Inst. for Plant Science Agricultural Biotechnology Center Gödöllö Hungary Dept. of Botany Tel-Aviv University Tel Aviv Israel Dept. of Plant Genetics The Weizmann Institute of Science Rehovot Israel Dept. of Organic Chemistry The Weizmann Institute of Science Rehovot Israel Dept. of Ornamental Horticulture ARO The Volcani Center Bet Dagan Israel Weed Control Co. Ltd. Bet Dagan Chem-Nir Ltd. Kefar Shemaryahu Tiveon-Chem Co. Haifa Israel Central Science Laboratory Ministry of Agriculture Fisheries and Food Slough Berks UK Federal Biological Research Centre for Agriculture and Forestry Inst. for Stored Product Protection Berlin Germany USDA-ARS Grain Marketing and Production Research Center Manhattan USA School of Biological Sciences Abia State University Uturu Nigeria CSIRO Division of Entomology SCMC Nambour CSIRO Division of Entomology Canberra Australia DowElanco Europe Letcombe Laboratory L

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A DISTRIBUTED MEDIA ACCESS PROTOCOL FOR PACKET RADIO NETWORKS AND PERFORMANCE ANALYSIS .2. NETWORK SET-UP TIME AND DATA RATE

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INTERNATIONAL JOURNAL OF communication SYSTEMS 1995年第1期8卷 49-63页

作者： POND, LC LI, VOK Communication Sciences Electrical Engineering Systems University of Southern California Los Angeles CA 90089-2565 U.S.A. Lawrence C. Pond received the M.Sc. and Ph.D. degrees in electrical engineering from the University of Southern California in 1983 and 1990 respectively. Dr. Pond is currently a scientist at Hughes Space and Communications Company having joined in 1980. He has worked in the fields of communication system design mobile communication network and spacecraft payload design. He is currently working on the development of satellite-based ATM transport and switching architectures for BISDN and Defense Information System Network amlications. Dr. Pond is a member of IEEE. Victor O. K. Li was born in Hong Kong in 1954. He received his SB SM and Sc.D. degrees in Electrical Engineering and Computer Science from the Massachusetts Institute of Technology Cambridge Massachusetts in 1977 1979 and 1981 respectively. Since February 1981 he has been with the University of Southern California (USC) LOS Angeles California where he is Professor of Electrical Engineering and Director of the USC Communication Sciences Institute. He has published 150 technical papers and has lectured and consulted extensively around the world. His research interests include high-speed communication networks personal communication networks intelligent networks distributed databases queueing theory graph theory and applied probability. Dr. Li is very active in the Institute of Electrical and Electronic Engineers (IEEE) having been a member of the Computer Communications Technical Committee since 1983 and having served as Chairman from 1987–1989. He served as Chairman of the Los Angeles Chapter of the IEEE Information Theory Group from 1983–1985. He is the Steering Committee Chair of the International Conference on Computer Communications and Networks (IC3 N) General Chair of the 1st Annual IC3N held in San Diego California in June 1992 General Chair and Technical Program Chair of the 4th IEEE Workshop on Comp

In this, the second part of a two-part paper, the required time for establishing a mobile packet radio network using the virtual circuit and time division multiple access protocol developed in Part 1 is analysed. Tools are developed to determine the virtual circuit and network set-up times in terms of the channel bandwidth allocated to establish and maintain the network. The tools are then extended to include the effects of user mobility. Then these results are combined with the network capacity results of Part 1 to analyse the trade-off between the data rate and set-up time of the network. Next a hierarchical architecture is proposed and the network data rate versus set-up time trade-off of this architecture is analysed using these tools. This architecture is shown to both provide a higher data rate and establish faster than flat networks of the same number of nodes.

关键词： PACKET RADIO NETWORK EPLRS DISTRIBUTED NETWORK TDMA VIRTUAL CIRCUITS MULTIHOP NETWORK BOUNDED DELAY MOBILITY NETWORK SET-UP TIME HIERARCHICAL NETWORK NETWORK DATA RATE

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Under the jeweler's loop

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Computer Applications in Engineering education 1995年第4期3卷 273-273页

作者： Fortenberry, N.L. Central Office National Consortium for Graduate Degrees for Minorities in Science and Engineering Inc. (GEM) Notre Dame IN 46556 Dr. Norman L. Fortenberry ScD: is Executive Director of the National Consortium for Graduate Degrees for Minorities in Science and Engineering Inc. (GEM). GEM is a $4.2-million enterprise with offices in three states and a staff of 13. He is also an adjunct professor of mechanical engineering at the University of Notre Dame. Dr. Fortenberry received his undergraduate and graduate degrees in mechanical engineering from the Massachusetts Institute of Technology. He has worked in industry government and the academy. Prior to joining GEM he was Staff Associate and a program director (engineering) in the Division of Undergraduate Education (DUE) of the National Science Foundation. Before joining NSF he was an assistant professor of mechanical engineering and associate director of minority engineering programs at the Florida A&M University/Florida State University College of Engineering in Tallahassee Florida. At FAMU/FSU he sponsored research programs in the areas of design theory and methodology as well as in recruitment retention and professional development of students.

I am pleased to introduce a new column in CAE entitled “Under the Jeweler's Loop,” which will be prepared by Dr. Norman L. Fortenberry. As you may recall, while program director in the Division of Undergraduate education at the National science Foundation, Dr. Fortenberry introduced and was the editor of the “What's DUE” column. He has now joined the National Consortium for Graduate Degrees for Minorities in Engineering and science, Inc. (GEM), as its Executive Director, and we are delighted to introduce him as the editor of the new “Under the Jeweler's Loop” column. Meanwhile, Dr. Janet Rutledge, who is now program director in the Division of Undergraduate education at NSF, will continue Dr. Fortenberry's work and has graciously agreed to continue to prepare the “What's DUE” column. We are delighted to have Dr. Rutledge on the Editorial Board of CAE , and welcome the opportunity to have Dr. Fortenberry continue his participation in CAE . Magdy F. Iskander Editor In this new column, I will be examining various happenings and trends in engineering education. My purpose is to give you a closer view of what underlies some of these issues and events. I wish to express my sincere gratitude to Dr. Magdy Iskander for providing this forum. Norman L. Fortenberry

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PARALLEL AND DISTRIBUTED 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 describes the implementation of transmission-line matrix (TLM) method algorithms on a massively parallel computer (DECmpp 12000), the technique of distributed computing in the UNIX environment, and the combination of TLM analysis with Prony's method as well as with autoregressive moving average (ARMA) digital signal processing for electromagnetic field modelling. By combining these advanced computation techniques, typical electromagnetic field modelling of microwave structures by TLM analysis can be accelerated by a few orders of magnitude.

关键词： Mathematical models

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Windows computer laboratory as a tutorial for undergraduate electromagnetics

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Computer Applications in Engineering education 1995年第3期3卷 183-183页

作者： McCulloch, J. Keddy, W.A. Stuchly, M.A. University of Victoria Department of Electrical and Computer Engineering University of Victoria Victoria British Columbia Canada Janet McCulloch:is a native of Toronto Canada where she briefly attended both York University and the University of Toronto before she set off on a year-long adventure through the Middle East and North Africa. When she returned to Canada she relocated to California. She spent a number of years living both in Los Angeles and coastal Northern California interspersed with several extended trips through the United States Mexico and Central America. Ms. McCulloch moved to Victoria British Columbia in 1989 and a year later registered in the cooperative education program in Electrical Engineering at the University of Victoria. She is presently in the fifth and final year of the program and has her sights set on graduate school. Besides the work described in this article she has been very much involved in the use of technology to assist in the delivery of curriculum at the senior secondary level. She lives on a country property a half-hour from the University with her husband her horse and three cats. W. Alfred Keddy:is an applications programmer/analyst for the Department of Electrical and Computer Engineering at the University of Victoria. He received a BEng (1988) in Electrical Engineering and an MASc (1994) from the University of Victoria. His research interests include distributed systems image processing local area networks VLSI and DSP system design for computation and communication and human–computer interface design. Maria A. Stuchly:received an MSc in Electrical Engineering in 1962 from Warsaw Technical University and a PhD in Electrical Engineering from the Polish Academy of Sciences in 1970. Between the years of 1962 and 1970 she was with the Warsaw Technical University an Institute of the Polish Academy of Sciences. After immigrating to Canada during 1970 her first position was with the University of Manitoba. In 1976 she became employed by the Bureau of Radi

Contents and implementation of a computer laboratory for undergraduate electromagnetics are described. The laboratory consists of four 3-hour sessions covering vector calculus, Maxwell's equations (integral and differential forms), wave propagation in materials, and wave behavior at planar interfaces. Each session contains theory (in the Help file), animations (where relevant) and a quiz. The program runs on IBM compatible 486-based PCs in a Windows environment and uses the Borland C ++ 4.0 compiler.

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