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Workshop on Numerical Modeling of Processes and Devices for Integrated Circuits

作者： G. Heiser A.G. Aberle School of Computer Science & Engineering University of New South Wales Sydney Australia Centre for Photovolt. Dev. & System University of New South Wales Sydney Australia

Under one-sun illumination, the highest energy conversion efficiencies of silicon solar cells are presently obtained with bifacially contacted n/sup +/p cells, where contact to the p-type substrate is made via small openings in the rear passivating oxide. Experimentally, it has been found that the dark and illuminated current-voltage (I-V) characteristics of these devices deviate strongly from ideal diode theory. In this work the experimental I-V curves are compared with results obtained from 2- and 3-dimensional (2D, 3D) device simulation based on experimental cell parameters. Excellent agreement between theory and experiment is obtained. The paper shows why these solar cells cannot accurately be modelled by 1D simulators and reveals the physical reasons underlying the observed non-idealities.< >

关键词： Numerical models Current-voltage characteristics Silicon Photovoltaic cells Lighting Voltage Light emitting diodes Surface resistance Thickness measurement Sun

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A expert system for aid in material selection process

A expert system for aid in material selection process

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IEEE International Conference on engineering Management (EMC)

作者： P.K. Sharma A. Aggarwal R. Gupta Suryanarayan Department of Computer Science & Engineering New Delhi India CMC Limited New Delhi India Project Engineering Group New Delhi India School of Computer and System Sciences Jawaharlal Nehru University New Delhi India

An expert system for aiding material selection process is proposed which, in conjunction with TOPSIS (Technique for Order Preference by Similarity to Ideal Situation), provides a very effective and efficient technique for material selection for a component. TOPSIS is a highly advanced optimization technique which requires that the user provides an index of relative importance for different properties by the author, the relative importance rating to be decided by the designers. However, the designers may not arrive at the same conclusion due to their different rating technique even though they use the same technique. In the proposed method, an expert system has been presented, which uses a small tool called Rulemaster and OPSS (developed at IIT Delhi) that facilitates the development of particular consultant paradigms. In identifying the knowledge base to be included in the system, special care was taken so that different designers get uniform results by using the proposed system.< >

关键词： Expert systems Costs Information analysis Design engineering Design optimization

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Preface

Lecture Notes in Computer Science (including subseries Lectu...

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Lecture Notes in computer science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) 1993年 744 LNAI卷 V页

作者： Jantke, Klaus P. Kobayashi, Shigenobu Tomita, Etsuji Yokomori, Takashi Fachbereich Informatik Mathematik und Naturwissenschaften Hochschule für Technik Wirtschaft und Kultur Leipzig Postfach 66 LeipzigD-04251 Germany Interdisciplinary Graduate School of Science and Engineering Tokyo Institute of Technology 4259 Nagatsuta Midori-ku Yokohama227 Japan Department of Communications and System Engineering University of Electro-Communications 1-5-1 Chofugaoka ChofuTokyo182 Japan Department of Computer Science and Inform. Math University Of Electro-Communications 1-5-1 Chofugaoka ChofuTokyo182 Japan

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FFG-61 PROTOTYPE DIGITAL TECHNICAL LIBRARY

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NAVAL ENGINEERS JOURNAL 1992年第2期104卷 58-68页

作者： VINROOT, CA ORNER, JG USN Capt. Charles A. Vinroot USN (Ret.)retired from the U.S. Navy in September 1991 following over 27 years of active duty as an engineering duty officer. He holds a BSEE from North Carolina State University and a MSEE and professional degree from the U.S. Naval Postgraduate School. During his naval career he served on USSIndependence (CVA-62) and USSLuce (DLC-7/DDC-38). He also served at Supship Quincy Mass. and Hunters Point Naval Shipyard. He was stationed in Washington D.C. with assignments at CNO (OP 98) ASN (S&L) and the Naval Sea Systems Command. Captain Vinroot was technical director of the Battleship Reactivation Program (PMS 378) technical director of the Destroyer Acquisition Program (PMS 389) and deputy program manager of the Amphibious Warfare and Strategic Sealift Program (PMS 377). Most recently he served as program manager for Gas Turbine Surface Combatants (PMS 314) and Surface Combatants (PMS 330). Captain Vinroot is now employed by PRC Inc. and serves as technical director for the Advanced Technology Division in Crystal City Va. Jeffery G. Ornergraduated from Wittenberg University in Springfield Ohio in 1979 with a bachelor of arts degree in political science and earned a master's of science degree in business from The American University in Washington D.C. in 1982. He has ten years of professional experience with the Naval Sea Systems Command in positions with responsibilities for logistic support planning policy and delivery computer-aided acquisition and logistic support and Fleet Modernization Program (FMP) and ship construction issues. He was a key player in establishing the current FMP integrated logistic support (ILS) process and in implementing of the Ships' Configuration and Logistic Support Information System (SCLSIS). His current position as Fleet Logistic Support Branch head for the Surface Combatant Program includes responsibility for logistic support and management of ship configuration and logistic data for all surface combatant ships (except for Aegis ships). In

USS Ingraham (FFG-61) is the prototype ship for NavSea's Advanced Technical Information system (ATIS). ATIS is a digital technical library, which holds on optical disks the ship's 2,000 technical manuals and 73,000 drawing sheets. It contains a detailed ship's configuration index (derived from SCLSIS) to lead the user to the proper drawing or manual, and it replaces the ship's aperture cards and the second (library) copy of the technical manuals. ATIS, and the data standards established and tested through ATIS development, will be the technical library portion of micro-SNAP and SNAP III. It also forms an important part of NavSea's plans to utilize EDMICS data. This paper describes the goals and technical concepts behind the development of ATIS. Problems encountered, solutions developed, and lessons learned are detailed. Special attention was paid to the application of the computer Aided Acquisition and Logistic Support (CALS) standards, problems caused by conflicts and ambiguities in those standards, the standards. Original program goals are compared with actual operational experiences. Plans for future expansion are outlined, including applications of this technology in the availability planning and execution process. A comparison is developed among the various methods of optical imaging and their costs and benefits.

关键词： Information Retrieval systems

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A model for input and output of multilingual text in a windowing environment 91

A model for input and output of multilingual text in a windo...

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4th Annual ACM Symposium on User Interface Software and Technology, UIST 1991

作者： Kataoka, Yutaka Morisaki, Masato Kuribayashi, Hiroshi Ohara, Hiroyoshi Science and Engineering Research Laboratory Waseda University 4-1 Okubo 3-chome Shinjuku-ku Tokyo Japan NTT Communications and Information Processing Laboratories Nippon Telegraph and Telephone Corporation Take Yokosuka Kanagawa1-2356 Japan Computer System RandD Laboratory Oraron Corporation Shimokaiinji Nagaokakyo Kyoto Japan Department of Information and Computer Science School of Science and Engineering Waseda University 4-1 Okubo 3-chome Shinjuku-ku Tokyo Japan

ISBN: (纸本)0897914511

A multilingual Input/Output (I/O) system has been designed based on typological studies of writing conventions of major world languages. Designed as a layered structure, it unifies common features of writing conventions and is intended to ease international and local functionalities. The input module of the internationalization layer converts phonograms to ideograms. The corresponding output module displays positionindependent characters and position-dependent characters. The localization layer positions highly language-specific functions outside the structure. These functions are integrated as tables and servers to add new languages without the necessity of compilation. The I/O system interactively generates both stateful and stateless code sets. Beyond the boundaries of the POSIX locale model, the system generates ISO 2022, ISO/DIS IO646, and Compound Text, defined for the interchange encoding format in X11 protocols, for basic polyglot text processing. Possessing the capability of generating multilingual code sets, this I/O system clearly shows that code sets should be selected by applications with purposes beyond the selection of one element from a set of localization. Likewise, functionality and functions relating to text manipulation in an operating system should be determined by such applications. A subset of this I/O system was implemented in the X window system as a basic X11R5 I/O capability by supplying basic code set generation and string manipulation to avoid interference from operating systems. To ensure the possibility of polyglot string manipulation, the I/O system clearly should be implemented separately from the operating system with its limitations. © 1991 ACM.

关键词： Text processing

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On the representation of uncertain information by multi-dimensional arrays 1

On the representation of uncertain information by multi-dime...

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1st International Symposium on Uncertainty Modeling and Analysis, ISUMA 1990

作者： Bhattacharya, Prabir Mukherjee, N.P. Department of Computer Science and Engineering University of Nebraska-Lincoln LincolnNE68588-0115 United States School of Computer and System Sciences Jawaharlal Nehru University New Delhi110067 India

ISBN: (纸本)0818621079

We develop a multi-dimensional approach to approximate reasoning. A multi-dimensional array, called a transition matrix, is defined which stores the joint probabilities of the occurrences of a set of n variables taking their values in different sets. Using the transition matrix it is possible to compute the information regarding the probability of occurrences of the variables as certain matrix products. © 1990 IEEE.

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On the representation of uncertain information by multidimensional arrays

On the representation of uncertain information by multidimen...

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International Symposium on Uncertainty Modeling and Analysis (ISUMA)

作者： P. Bhattacharya N.P. Mukherjee Department of Computer Science & Engineering University of Nebraska Lincoln Lincolnshire NE USA School of Computer & System Sciences Jawaharlal Nehru University New Delhi India

The authors develop a multidimensional approach to approximate reasoning. A multidimensional array, called a transition matrix, is defined which stores the joint probabilities of the occurrences of a set of n variables taking their values in different sets. Using the transition matrix it is possible to compute the information regarding the probability of occurrences of the variables as certain matrix products.< >

关键词： Multidimensional systems computer science Array signal processing Multidimensional signal processing Data analysis

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A finger shaped tactile sensor using an optical waveguide

A finger shaped tactile sensor using an optical waveguide

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Annual Conference of Industrial Electronics Society

作者： N. Nakao M. Kaneko N. Suzuki K. Tanie NTT Tsukuba Field Engineering Development Center Tsukuba Ibaraki Japan School of Computer Science and System Engineering Department Kyushu Institute of Technology Fukuoka Japan Cybernetics Division Robotics Department Mechanical Engineering Laboratory Tsukuba Ibaraki Japan

A finger-shaped tactile sensor consisting of a charge-coupled device (CCD) and a semispherical optical waveguide covered with an elastic sheet and connected to a light source is proposed. The principle of the sensor is based on producing the scattering light at the sensor-object contact. The contact location is recognized using a CCD to detect light. By a simple calculation of the equation derived from the sensor surface geometry, the sensor can also provide the surface normal of the touched object. Through experiments using a prototype sensor, the fundamental characteristics of the sensor are evaluated and the principle of the sensor is confirmed.< >

关键词： Optical waveguides Fingers Tactile sensors Optical sensors Sensor phenomena and characterization Optical scattering Charge coupled devices Optical surface waves Optical devices Light sources

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A family of maximal subgroups containing the Sylow subgroups and some solvability conditions

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Archiv der Mathematik 1989年第2期53卷 208-208页

作者： Bhattacharya, Prabir Mukherjee, N. P. Department of Computer Science and Engineering University of Nebraska-Lincoln Lincoln USA School of Computer and System Sciences Jawaharlal Nehru University New Delhi India

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Combined Frequency and Time Domain Techniques for the Design of Compensator for Multivariable Nonlinear Control systems

Combined Frequency and Time Domain Techniques for the Design...

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American Control Conference (ACC)

作者： S D Katebi M R Katebi Department of Computer Science and Engineering School of Engineering Shiraz University Iran Industrial System and Control Glasgow Glasgow UK

A combined frequency and time domain design technique is described for a class of multivariable feedback systems containing a set of coupled nonlinear elements of any general multivalued form. The parameter of the compensator is initially derived from the frequency domain analysis and automatically adjusted by the numerical synthesis routine in order to meet specified time domain performance. The method employs a combined analytical and synthesis procedures and provides a powerful tool in the design of a wide class of nonlinear multivariable feedback systems. Example is presented to demonstrate the efficiency of the proposed design technique.

关键词： Nonlinear control systems Limit-cycles Equations Frequency synthesizers Feedback Displays Tiles Couplings Performance analysis Neutron spin echo

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