检索结果-内蒙古大学图书馆

Development and application of MCAL tools for marine radar instruction

Computer Applications in engineering Education 1995年第4期3卷 259-259页

作者： Guirguis, S. Korany, E. Abdel-Bary, A. Institute of Graduate Studies and Research Alexandria University Alexandria Egypt Shawkat K. Guirguis:obtained the BSc and M.Sc. degrees in Computer Science and Automatic Control Faculty of Engineering Alexandria University in 1981 and 1984 respectively. In 1988 he obtained a PhD degree in Electronics and Communications Faculty of Engineering Cairo University co-supervised by the Imperial College of Science and Technology University of London where he spent two years as an academic visitor. His current research interests include software quality management multimedia automatic programming and decision support systems. He is currently a lecturer of Computer Science at the Institute of Graduate Studies & Research Alexandria University. Ezzat A. Korany:received the BS degree in Electrical Engineering (Electronics Section) from the University of Alexandria Egypt in 1971 the MS degree in Electrical Engineering (Computer Section) from Ain Shams University Cairo Egypt in 1977 and the PhD degree in Electrical Engineering (Digital Systems) from Florida Institute of Technology U.S.A. in 1982. He is currently an associate professor of Computer Science at the Institute of Graduate Studies & Research University of Alexandria. His research interests are in data communications and multimedia applications computer networks image processing and pattern recognition. Abdel-Latif A. Abdel-Bary:obtained the BEng degree in Electronics Technology from Arab Maritime Transport Academy in 1986. In 1995 he obtained the MSc degree in Information Technology from the Institute of Graduate Studies & Research Alexandria University. His current research interests include ICAL hypermedia and automatic programming.

In this article a multimedia computer-assisted learning (MCAL) system is presented. The major objective of this work was to investigate the potential of using such systems as tools for transferring instructional course information through various types of computer media as opposed to the classic CAL systems. The philosophy and techniques employed to design the system are investigated. Usage of the implemented system and its merits have been illustrated through its application to teach engineering students and technicians the theory and concepts of marine radar. System design, implementation, test, and revision phases are presented and discussed.

关键词：

来源：评论

学校读者我要写书评

暂无评论

On interpolation memories for learning control

On interpolation memories for learning control

引用

IEE Colloquium on Advances in Neural Networks for control and systems

作者： H. Tolle Institute of Control Engineering Department of Control systems Theory and Robotics Technical University of Darmstadt Darmstadt Germany

The paper deals with new developments of interpolating memories as the basic element of learning control and with their possible application. It discusses learning control, interpolating memories, characteristic manif... 详细信息

关键词： Interpolation Learning systems

来源：评论

学校读者我要写书评

暂无评论

Associative datafields in automotive control

Associative datafields in automotive control

引用

IEEE Conference on control Technology and Applications (CCTA)

作者： Schmitt Ullrich Tolle Department of Motor Vehicle Safety Systems Robert Boach GmbH Schwieberdingen Germany Institute of Control Engineering Department of Control System Theory and Robotics Technical University of Darmstadt Germany

This work presents an associative datafield structure that has been developed for automotive control applications by the institute of control engineering, Department of control systems theory and Robotics at the Technical University of Darmstadt and the Robert Bosch GmbH. In contrast to the state-of-the-art lattice-like datafields, the new system permits the modelling of multidimensional nonlinear process and/or controller characteristics with respect to computational performance and storage capacity provided by automotive control units. Furthermore, the associative datafield allows the compensation of wear and tear and manufacturing tolerances by learning, i.e. online adaptation of its contents. The paper describes the principles of the associative datafield and different update algorithms. Results of simulations using realistic data from car engines are discussed.< >

关键词： Road vehicles Interpolation Real time systems Road vehicle control Intelligent control Learning control systems

来源：评论

学校读者我要写书评

暂无评论

UNIMODALITY AND BIMODALITY OF MIXED WEIBULL-DISTRIBUTIONS

引用

QUALITY AND RELIABILITY engineering INTERNATIONAL 1994年第4期10卷 355-358页

作者： GERA, AE Leibowitz Str. 13 Gedera 70700 Israel Amos Eliahu Gera was born in 1944 in Israel. He received the B.Sc. from the Hebrew University. Jerusalem and the M.Sc. and Ph.D. in Applied Mathematics from the Weizmann Institute Rehovot. His thesis was related to the design of feedback controllers for systems with large parameter uncertainties. He joined the ELTA electronic industry in 1981. His topics of interest belong to the areas of reliability engineering antenna theory and electromagnetics and feedback control.

The failure density function and probability density function of logarithmic lifetime are partially correlated. Normally, both patterns are either unimodal or else bimodal. This is not always the case. Quantitative cr... 详细信息

关键词： LIFETIME MODEL COMPOUND WEIBULL DISTRIBUTION UNIMODAL BIMODAL DISTRIBUTION ROOT LOCUS TECHNIQUE

来源：评论

学校读者我要写书评

暂无评论

HYBRID SATELLITE AND TERRESTRIAL NETWORKS

引用

INTERNATIONAL JOURNAL OF SATELLITE COMMUNICATIONS 1994年第3期12卷 313-327页

作者： CHITRE, DM SHYY, DJ EPHREMIDES, A GUPTA, S COMSAT Laboratories 22300 Comsat Drive Clarksburg MD 20871–9475 USA. Received his B.Sc. from the University of Bombay India an M.A. in mathematics from the University of Cambridge U.K. and a Ph.D. in physics from the University of Maryland. He is currently an Associate Executive Director of the Network Technology Division at COMSAT Laboratories. He has been involved in research and development activities in ISDN VSAT networks data communications and network systems and architectures. Prior to his current positions Dr. Chitre was a Principal Scientist in the Network Technology Division at COMSAT Laboratories. Dr. Chitre joined COMSAT Laboratories in 1980. He has made major contributions to the analysis and architecture of data communication ISDN and BISDN via satellite. Dr. Chitre directs and participates in the international and national standards activities in ISDN BISDN and data communication as they apply to satellite communication. He was Chairman of the Working Group on Protocols and Network Timing Function of the CCIR/CCITT Joint Ad Hoc Group on ISDN/Satellite Matters during 1990–1992. Currently he is the Chairman of the Working Group on New Technologies in the ITU Intersector Coordinating Group (ICG) on Satellite Matters. Dr. Chitre was a programme manager during 1990 and 1991 on a contract from INTELSAT on systems studies on satellite communications systems architectures for ISDN and broadband ISDN systems. Currently he is the technical manager of the DoD Contract on ATM via satellite demonstration and the programme manager for the INTELSAT contract on analysis and top-level specification of INTELSAT ISDN subnetworks and SDH compatible transport network. Received the B.S. degree in electrical engineering from national Chiao-Tung University Hsin-Chu Taiwan in 1983 and the M.S. and Ph.D. degrees in electrical engineering from Georgia Institute of Technology Atlanta GA in 1986 and 1990 respectively. From June 1987 to October 1987 he worked for the Department of Neurology Emory Univers

The role of satellite communications in networks that provide new services, such as frame relay and multimedia, is investigated. Both passive and active (on-board switching/processing) satellite systems are considered. Novel techniques are developed for each system to demonstrate, via detailed analysis and simulation, how the communications bandwidth agility of multipoint/broadcast satellite channels, and the on-board switching/processing, makes it feasible to provide these new services via hybrid satellite and terrestrial networks in a resource-efficient manner.

关键词： HYBRID NETWORKS ON-BOARD PROCESSING FRAME RELAY

来源：评论

学校读者我要写书评

暂无评论

A MULTI-D-TRELLIS DECODER FOR A 155-MB/S CONCATENATED CODEC

引用

INTERNATIONAL JOURNAL OF SATELLITE COMMUNICATIONS 1994年第6期12卷 539-553页

作者： PIETROBON, SS KASPARIAN, JJ GRAY, PK Australian Space Centre for Signal Processing University of South Australia Warrendi Road The Levels SA 5095 Australia Born in Naracoorte SA on 5 October 1963. He received the B. Eng. and M. Eng. degrees in electronic engineering from the South Australian Institute of Technology (SAIT now University of South Australia) Adelaide SA in 1986 and 1989 respectively and the Ph.D. degree in electrical engineering from the University of Notre Dame Notre Dame Indiana USA. in 1991. He received a SAIT Medal for outstanding academic achievement for his B. Eng. degree. n 1991 he joined the Australian Space Centre for Signal Processing University of South Australia as a Research Fellow. In 1993 he was awarded a three-year Australian Postdoctoral Research Fellowship at the University of South Australia. His research interests include convolutional coding trellis coded modulation satellite and deep space communications and implementation of Viterbi and trellis decoders. Dr. Pietrobon has been a member of the IEEE since 1986. He belongs to the Information Theory Society and Communications Society. Born in Mount Gambier SA on 30 January 1962. He received the B. Eng. degree in electronic engineering from the South Australian Institute of Technology (SAIT now University of South Australia) Adelaide SA in 1990. He received a SAIT medal for outstanding academic achievement for his degree. In 1991 he received an Australian Postgraduate Research Award with the Australian Space Centre for Signal Processing University of South Australia where he is carrying out research in the area of error control coding in satellite Systems. Particular interests are in the areas of Viterbi decoding and design and implementation of high speed codecs for satellite applications. Mr. Kasparian has been a student member of the IEEE since 1990. He belongs to the Information Theory Society and Communications Society. Born in Adelaide SA on 23 February 1965. He received the. B. Eng. and M. Eng. degrees in electronic engineering from th

An implementation of a 16 state, rate 8/9 six-dimensional (6-D) 8PSK rotationally invariant trellis decoder for use in a concatenated codec is described. The concatenated codec allows transmission of STM-1 signals (at the 155.52 Mb/s information rate) over a 72 MHz satellite transponder. The inner trellis decoder is used with an outer (255,239) RS block decoder. The trellis decoder operates at 165.93 Mb/s and currently has an implementation loss of only 0.2 dB. The concatenated codec achieves a bit error ratio of 10(-10) at an E(b)/N-0 of 8.2 dB (assuming an ideal modem and AWGN channel). Details are given of many Viterbi decoding 'tricks' that were used in order to implement the main functions of the decoder on two 10,000 gate equivalent CMOS programmable gate arrays.

关键词： MULTIDIMENSIONAL TRELLIS CODES TRELLIS DECODING 8PSK MODULATION BISDN

来源：评论

学校读者我要写书评

暂无评论

EXPANSE SOFTWARE FOR DISTRIBUTED CALL AND CONNECTION control

引用

INTERNATIONAL JOURNAL OF COMMUNICATION systems 1994年第2期7卷 149-160页

作者： BUSSEY, H MINZER, S MOUCHTARIS, P MOYER, SL PORTER, F Bellcon MRE 2Q275 445 South Street Morristown NJ 07960-1910 U.S.A. Previously he conducted research on systems for information dissemination and personalization through filtering of the stream of received information articles. Before that he conducted research on broadband systems architecture and participated in constructing an early prototype of a broadband switch. With several colleagues he patented a non-blocking self-routeing switch suitable for ATM. Prior to joining Bellcore he worked for AT&T Bell Labs and the U.S. National Oceanic and Atmospheric Administration. Howard received a BS in Mathematics and Psychology from the University of Colorado in 1974 a Bachelor of Electrical Engineering (with high distinction) from the University of Minnesota in 1979 and a MS in Electrical Engineering from the University of California Berkeley in 1980. From 1977 to 1980 he worked on database and system software development for GTE Northlake IL. From 1980 to 1983 he was at AT&T Bell Laboratories Naperville IL where he designed and implemented software for the DMERT operating system of the 3B20D processor. He joined Bellcore in 1984 where he has worked on ATM was involved in BISDN standards participating in T1S1 and CCITT Study Group XVIII. He is currently involved in exploratory'research on signalling that is known as object-oriented call control working co-operatively with European experts in the RACE/MAGIC project and participating in T1S1 and CCITT Study Group XI. He has been with Bellcore as a Member of Technical Staff since August 1992 working on routeing resource allocation connection management and signalling for BISDN. His research interests include traffic theory switching systems and ATM networks. From 1987 to 1990 he worked on a secure jam-resistant communications system for the United States Armed Forces at Plessey Electronics System Corporation Wayne New Jersey. He received the M.E. degree in Electrical Engineering from Stevens Institute of Technology Hoboken New Jersey in 1

The experimental ATM network services environment (EXPANSE) prototype provides an experimental testbed for multimedia multiparty telecommunications services over heterogeneous communications networks. The EXPANSE software architecture supports the functional separation of call and connection control. At the call control layer an object-oriented, transaction-based call model provides for the co-ordination of the negotiations among users for the establishment, modification and disconnection of telecommunications services. The connection control layer provides an object-oriented protocol for the dynamic establishment, modification and release of network connections which include the control and allocation of network resources required for multimedia multiparty services. The EXPANSE software includes an application programming interface (API) to the signalling protocol at the call control level. The API provides a uniform and powerful interface to the call model and allows different applications to co-ordinate the control of local resources and session state.

关键词： SIGNALING CALL control CONNECTION control BISDN

来源：评论

学校读者我要写书评

暂无评论

USING VIRTUAL ENVIRONMENTS IN THE DESIGN OF SHIPS

引用

NAVAL ENGINEERS JOURNAL 1994年第3期106卷 91-106页

作者： JONS, OP RYAN, JC JONES, GW Otto P. Jons:received a Diplom Ing. in shipbuilding from the Technical University of Hanover W. Germany and an MS in naval architecture and marine engineering from MIT. He then joined Litton Ship Systems where he was responsible for the preliminary design of the DD-963 hull structure and then for ship system integration as manager LHA ship systems engineering department. From 1972 to 1974 he was the principal research scientist at Hydronautics. In 1974 as technical director he helped establish the Crystal City office of Designers and Planners. Mr. Jons was one of the co-founders of Advanced Marine Enterprises Inc. in 1976 where he serves as corporate vice president engineering. J. Christopher Ryan:earned his bachelors and masters degrees in naval architecture from Webb Institute and MIT respectively. He spent three years at the advanced marine technology division of Litton Industries working on the DD-963 class ship design and related computer aided design projects. He subsequently went to the Navy Department concentrating on early stage design of surface combatants for twelve years including work on the FFG-7 Sea Control Ship CSGN and CVV aircraft carrier projects. He then shifted focus and became the Technical Director for the Computer Supported Design Program in NavSea for five years. Mr. Ryan has served in several supervisory positions within the Ship Design Group in NavSea since that time. He is currently the director of the future ship concepts division. Gary W. Jones:graduated from the University of Tennessee in 1971 with a BS in mechanical engineering and followed up with graduate work at George Washington University and the University of Maryland. Mr. Jones was with the Naval Sea Systems Command from 1971 until 1988 where he was a naval architect in the submarine section of the hull form design division. In 1988 he was detailed to the Defense Advanced Research Projects Agency (DARPA) where he became the program manager for the advanced submarine technology program's hydrodynamic hydroac

A major contributor to the expense and length of time to design, build, and test new systems has been the need to build and test hardware prototypes to determine their effectiveness in meeting operational requirements. Recent and dramatic advances in computer simulation technologies hold forth the promise of revolutionizing design and acquisition strategies by providing the means to validate end users' requirements prior to hardware construction. By designing and operationally testing virtual prototypes in a virtual environment, these technologies will soon offer naval architects the ability to build and launch ships in computer-based cyberspace in lieu of the shipbuilder's ways. The authors of this paper provide the background for these developments, explore the significance and ramifications of these technologies to the current process of ship and system design, outline challenges lying ahead, and present their vision and recommendations for future development.

关键词：

来源：评论

学校读者我要写书评

暂无评论

BioX ++ -Extended Learning control of Biotechnological Processes

引用

IFAC Proceedings Volumes 1993年第2期26卷 997-1000页

作者： K.D. Bettenhausen H. Tolle Section Control Systems Theory and Robotics Institute of Control Engineering Technical University of Darmstadt Darmstadi Germany

The technical use of biological or biochemical processes requires additionally to the biological preparation and process engineering an intelligent automatic control engineering whose performance characteristics excel the classical approaches. Most fermentations are operated in a phase-building batch mode, which does not allow a linearization of the not or only inexact known process model and the operation near one or several different working points. With Bio X + + an intelligent control system was successfully designed, whose fundamentals and extensions will be the contents of the article at hand

关键词： Biotechnology batch fermentations learning systems associative memories expert systems fuzzy systems

来源：评论

学校读者我要写书评

暂无评论

control of real-time discrete event systems with hybrid controllability of events

Control of real-time discrete event systems with hybrid cont...

引用

IEEE Conference on Decision and control

作者： P. Kozak Czech Academy of Sciences Institute of Information Theory and Automation AS CR Prague Czech Republic Systems Control Group Department of Electrical Engineering University of Toronto Toronto ONT Canada

The paper solves a real-time extension of the supervisory control problem for a class of real-time discrete event systems with hybrid components. The considered plant is parallel composition of subsystems each with guaranteed infimal delays between two subsequent output discrete events, with true parallelism, and with delayed response to input events. The delayed response depends on current state of plant. It is modelled using one integrator for each controllable event. An event is actually disabled if the value of integrator is equal or higher than "hybrid controllability" of the event. The minimally restrictive solution is presented.< >

关键词： control systems Real time systems Discrete event systems controllability Roads Delay effects Vehicles Sensor systems Manufacturing systems Degradation

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：