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GEC REVIEW 1998年第3期13卷 172-+页

作者： Simons, RW Sutherland, JW Marconi Radar Systems Marconi's Wireless Telegraph Company Research Division United States Marconi Radar Systems Ltd. Radar Research Laboratory Baddow Dept. of Priciples of Eng. Design Sussex University United Kingdom Queens' College Cambridge Royal Navy Metropolitan Vickers Marconi Defence Projects Radar Division Marconi Radar Systems Limited Marconi Company Acorn Computer Group plc MTI Managers Limited Electronic Engineering Association

The article starts with a broad review of the organizations which came together to form Marconi Radar Systems Limited and its subsequent commercial, technical and corporate development. A survey of the evolution of radar markets and the factors influencing business, and in particular the systems approach, is followed by a detailed account of Marconi's major contribution to Air Defence in the UK, NATO and elsewhere overseas. Private Venture (that is, Company-funded) development of radar systems is described with particular emphasis on the S600 Series and MARTELLO. Passive Detection, a system to pin-point accurately large numbers of 'jamming' aircraft in an air defence environment, was a highly successful, but largely unknown contributor to UK Defence forever 20 years. Two other significant markets - Air Traffic Control and Naval Systems - complete the forty year story Marconi, during this period, wets the main supplier of radar, weapon systems and electronic control equipment to the Royal Navy.

关键词： radar air defence air traffic control naval systems NATO passive detection export

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Applying fuzzy functions and sequential coordination to optimization of machinery arrangement and pipe routing

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NAVAL ENGINEERS JOURNAL 1998年第6期110卷 43-54页

作者： Wu, BC Young, GS Schmidt, W Choppella, K Dr. Bi-Chu Wu:received a PhD in Mechanical Engineering from the University of Maryland College Park in 1991. She has worked on projects involving naval architecture design optimization solid mechanics and database development. Presently a senwr engineer with Angle Incorporated Dr Wu's research interests are in design optimization and fuzzy logic applications. Dr. Gin-Shu Young: a senior engineer with Angle Incorporated holds a PhD in Mechanical Engineering from the University of Maryland College Park. As a guest researcher with National Institute of Standards and Technologies from 1990 to 1993 he worked on vision-based navigation for autonomous vehicles. His experience also includes applications of optimization fuzzy logic neural network and genetic algorithm methods to engineering system design Mr. William Schmidt:co-founded Angle Incorporated in 1990 and has served as Vice PresidentlChiefScientist during this tame. He holds a B.Sc. in Applied Science from the Naval Acadt?my and an M.Sc. in Physics from the Naval Post Graduate School. He has cner 20 years experience in technical leadership material and personnel management. He has led the application of computer aided design (CAD) and Product Model Information Exchange to the shipbuilding industry. His experience also includes leading the amlication of model based operational analysis to support the Live Fire Test Program for DDG 51 Class Destroyers. Mr. Krishna M. Choppella:is a Sofware Engineer at Eidea Laboratories Incotporated where he works on componentbased distributed enterpvise frameworks. He has been involved in creating data analysis tools for the US Nay by integrating CAD modeis databases and graphical front ends. His work in the Masters degree program in Mechanical Engineering at the University of Texas at Austin was in di0ddase.r spectroscopy of combustion products in porous-matri burners. He received his Bachelors degree in Electrical Engineering in India. He was a Research Associate at the Centre for Laser Technology and Project Engi

Ship design is often multidisciplinary involving several design elements with various types of objectives and constraints (O/C) some easily described as mathematical formulas, others better modeled as descriptive assertions. This paper describes a method based on fuzzy functions and an integrated performance index to model O/C using descriptive assertions to be used with mathematical formulas in optimization. Another issue addressed in this paper concerns the coordination of design elements when sequentially coupled, that is, when one leads the other and the performance of the follower depends greatly on the design of the leader. Based on neuro-fuzzy techniques, the method described here coordinates and optimizes sequentially coupled elements. The two methods are applied to machinery arrangement (MA) and pipe routing (PR). Preliminary models for optimization of MA and PR are described considering convenience, producibility: engine room size, interference and location as factors in the O/C set. Some test results from MA/PR applications are presented and discussed. The methods are generic and can be extended to other elements in ship design. They are mutually independent and may be used separately Two advantages of their use are an improvement in overall performance and a reduction in the need for redesign of elements.

关键词： Optimization

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Characterization of thin-film blue SrGa₂S₄ phosphors for low-to-medium-energy cathodoluminescent displays

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Journal of the Society for Information Display 1998年第3期6卷 185-189页

作者： Chakhovskoi, A.G. Hunt, C.E. Yang, T. Wagner, B.K. Summers, C.J. Malinowski, M.E. Felter, T.E. Elec. and Computer Engineering Dept. University of California at Davis Davis CA 95616 United States PTCOE Manufacturing Research Center Georgia Institute of Technology Atlanta GA 30332-0560 United States LLNL Livermore CA 94530 United States Sandia National Laboratories Livermore CA 94550 United States Moscow Inst. of Phys. and Technology Russian Federation Russian Academy of Sciences Russian Federation Elec. and Comp. Eng. Department University of California Davis CA United States Materials Research Society Russ. Assoc. Ultramicroscopy N. SID United States University of Utah United States Cornell University United States VLSI Design Research Group Computer Science Department University of Utah United States Engineering Research Division Lawrence Livermore Natl. Laboratory United States UC Davis Vacuum Microlectron. G. DARPA Phosphor Technol. Ctr. E. United States Inst. Elec. Electronics Engineers Materials Research Society Electrochemical Society United States Brown University Caltech United States Sandia National Laboratories United States Lawrence Livermore Natl. Laboratory United States Sandia's Electron Emission C. United States

The spectral response, luminance, and outgassing characteristics of new, thin-film Ce-activated SrGa2S4 phosphors for application in field-emission flat-panel displays are presented. The tested phosphor materials are ... 详细信息

The spectral response, luminance, and outgassing characteristics of new, thin-film Ce-activated SrGa₂S₄ phosphors for application in field-emission flat-panel displays are presented. The tested phosphor materials are prepared using molecular beam epitaxy. The sample screens are tested with e-beam excitation at currents up to 50 μA within the 200-2000 V (i.e., "low-voltage") and 3-8 kV (i.e., "medium-voltage") ranges. The spectral coordinates are compared to those of commercial low-voltage phosphors. Phosphor outgassing, as a function of time, is measured with a residual gas analyzer at a fixed 50-μA beam current in the low-voltage range. We find that levels of outgassing stabilize to low values within the first hour of excitation. The desorption rates measured from thin films are compared to previously studied desorption parameters for powder phosphor layers.

关键词： Blue CL phosphors Cathodoluminescent phosphors FED phosphors Field-emission displays Phosphor outgassing Thin-film phosphors

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A toolset for architecture independent, reconflgurable, multi-agent systems 1st

A toolset for architecture independent, reconflgurable, mult...

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1st International Workshop on Mobile Agents, MA 1997

作者： Williams, Marcus J. Bendiab, A.T. Computer Supported Concurrent Engineering Research Group Dept of Mechanical Engineering Design and Manufacture Manchester Metropolitan University United Kingdom

ISBN: (纸本)3540628037

Large computer systems are expected to have long lifetime. For this reason, a system should evolve as user and system demands change. Attempts have been made at this in the field of distributed systems where configuration languages have been developed for just this purpose. Multi-agent systems provide a better solution to this problem but lack the development environments that are available for traditional software. This paper presents a generic agent shell and two agent system languages, ADLe (definition language) and ARCLe (reconfiguration language) for use with this shell. It is proposed that they will provide the basis for an environment that fills this gap. © Springer-Verlag Berlin Heidelberg 1997.

关键词： Multi agent systems

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Meeting the 21st century with SMART mission flexibility

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NAVAL ENGINEERS JOURNAL 1997年第3期109卷 341-346页

作者： Alexander, RK Olmstead, L Ronald K. Alexander P.E.:received his B.S. degree in mechnaical engineering from Purdue University and his M.S. degree in mechanical engineering from the Naval Postgraduate School. He is currently manager quality programs at RGE Engineering Service Company where he provides technical support to the ATC Program in the area of combat system modularity design. lhe is a member of ASNE and the Surface Navy Association. Larry Olmstead:received his B.L.S. degree in mathematics and computer scienc from Mary Washington College in 1982 and his M.S. degree in system management from the University of Southern California in 1986. He chaired the C'I Modular Implementation Wroking Group (MIWG) from its inception in September 1993 to December 1996 as a combat system engineer in the PEO CLA Engineering management Office (Code PMS307). He is currently employed at Science Application International Corporation.

A revolution is underway in the design, production and installation of the Navy/Marine Corps team's command, control, communications, computers and intelligence ((CI)-I-4) vision and strategies, which is significantly reducing costs, and dramatically improving the battle readiness of tomorrow's forward deployers. A strong emphasis on research and development has enabled the design, development and installation of the Shipboard Modular Arrangement Reconfiguration Technology (SMART) systems in ships. SMART is a methodology for installing equipment in shipboard spaces that will provide the fleet with enhanced mission flexibility. The heart of this technology is a track rail system, similar to that used by the aircraft industry, which enables equipment to be bolted to the deck, bulkheads or overhead, and meets all shipboard shock and vibration requirements. The fleet can reconfigure designated spaces to receive new systems, install equipment upgrades, position cross-decked systems, or rearrange work areas with minimal industrial work (welding, grinding, lagging, painting, etc.), and maximum cost savings. Key (CI)-I-4 spaces such as Tactical Flag Command Center (TFCC), Joint Operations Center (JOC), Communication Centers, etc., can be reconfigured as required. Thereby, new technology insertion can enable rapid deployment of state-of-the-art technologies much faster than the standard method of welding foundations in place to support various equipment installations. The SMART system includes a foundation track system, modular-connectorized power and lighting, and modular workstations.

关键词： Naval vessels

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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 Hambric, S Azarm, S Marquardt, M Hellman, A Bartlett, 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 been 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 variables and a common materials database. 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 feasible sequential quadratic programming (FSQP) and exhaustive search are used to modify the design variables 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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A spectral approach to compute the mean performance measures of the queue with low-order BMAP input

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Journal of Applied Mathematics and Stochastic Analysis 1997年第4期16卷 349-360页

作者： Lee, Ho Woo Moon, Jong Min Park, Jong Keun Kim, Byung Kyu Sung Kyun Kwan University Dept. of Systems Management Engineering Su Won 440-746 South Korea SE Application Prog. Info Tech. Group Division LG CNS Good Morning Bldg. Seoul 150-712 Yeo Eui Do South Korea I/O System Team Computer System Department Computer and Software Research Laboratory Dae Jon 305-350 South Korea Itsweb CRM Team R and D Center 789-4 Young Bldg. Seoul 135-080 Yok Sam Dong Kang Nam South Korea

This paper targets engineers and practitioners who want a simple procedure to compute the mean performance measures of the Batch Markovian Arrival process (BMAP/G/1) queueing system when the parameter matrices order is very low. We develop a set of system equations and derive the vector generating function of the queue length. Starting from the generating function, we propose a spectral approach that can be understandable to those who have basic knowledge of M/G/1 queues and eigenvalue algebra. ©2003 by North Atlantic Science Publishing Company.

关键词： BMAP/G/1 Queue Spectral Approach

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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 Oberman, FR Malone, TB Baker, 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 objectives 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 benefits that are thoroughly consistent with the direction of the Navy of the future, chief among these is reduction of required numbers 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 benefits from increased application of man-machine technology to Navy ship design is personnel reduction as well as improving system availability, effectiveness, and safety The objective 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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Operational systems, logistics engineering and technology insertion

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NAVAL ENGINEERS JOURNAL 1997年第3期109卷 205-220页

作者： Grubb, MJ Skolnick, A Michael J. Grubb:has perfomzed naval engineering at the Crane Division Naval Surface Warfare Center (NSWC) for more than twenty-five years. He currently the program manager for the Sustainable Hardware and Affordable Readiness Practice Program (SHARP). is a Navy-wide logistics research and development prgram aimed at the successful transiton of proved technologies inot the fleet. SHARP focuses on reducing acquisition performance capability reliability maintainability and readiness of these systems. Mr. Grubb has served as a department director for the past eleven years. His most recent assignment was as director of the Tactical Computer Resources and Test Equipment Department. This organization provided acquisition and in-service engineering support of the Navy's tectical embedded computers priphirals displays and mass memory storage devices. The organization also provided a complete range of product engineering and metrology engineerig services for SSP NevSeaSysCom and the Trident Program. Prior to this appointment Mr. Grubb was deptuy director psysical security programs department and site responsible for program management and system integration of ashore integrated security systems. Mr. Grubb holds a B.S. degree in industrial engineering from Iowa State Universtiy an M.S. degree in industrial engineering from Purdue University and has copleted the course work (Dec.'96 for a master's degree in public and environment affairs at Indiana University-Purdue Univeristy Indianapolis. Dr. Alfred Skolnick operates System Science Consultants (SSC) specilizing in strategic planning technical program definiton technology assessment and engineering analyses on selected matters of national interest. He has taught physics mathematics and management sciences at University of Virginia and Marymount University and is currently adjunct professor of mathematics at Northern Virginia Community College. Form 1985 to 1989 he was president of the American Society of Noval Engineers. Dr. Skolnick served at Applied Physic

In an era of fiscal austerity, downsizing and unforgiving pressure upon human and economic capital, it is an Augean task to identify resources for fresh and creative work. The realities of the day and the practical demands of more immediate fleet needs can often dictate higher priorities. Yet, the Navy must avoid eating its seed corn. Exercising both technical insight and management foresight, the fleet, the R&D community, the Office of the Chief of Naval Operations (OpNav) and the product engineering expertise of the Naval Surface Warfare Center (NSWC) are joined and underway with integrated efforts to marry new, fully demonstrated technologies and operational urgencies. Defense funding today cannot sponsor all work that can be mission-justified over the long term because budgets are insufficient to support product maturation within the classical development cycle. However, by rigorous technical filtering and astute engineering of both marketplace capabilities and currently available components, it is possible in a few select cases to compress and, in effect, integrate advanced development (6.3), engineering development (6.4), weapon procurement (WPN), ship construction (SCN), operation and maintenance (O&M,N) budgetary categories when fleet criticalities and technology opportunities can happily meet. In short, 6.3 funds can be applied directly to ''ripe gateways'' so modern technology is inserted into existing troubled or aging systems, sidestepping the lengthy, traditional development cycle and accelerating practical payoffs to recurrent fleet problems. To produce such constructive results has required a remarkable convergence of sponsor prescience and engineering workforce excellence. The paper describes, extensively, the philosophy of approach, transition strategy, polling of fleet needs, technology assessment, and management team requirements. The process for culling and selecting specific candidate tasks for SHARP sponsorship (matching operational need with t

关键词： Naval vessels

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design for manufacture in the aerospace extended enterprise

World Class Design to Manufacture

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World Class design to Manufacture 1995年第2期2卷 28-33页

作者： Kamal Sehdev Ip‐Shing Fan Stephen Cooper Gareth Williams Research Officer at the CIM Institute. As well as his involvement in the EPSRC‐funded Design for Manufacture in the Extended Enterprise Project he lectures to the Master′s course on the application of AI and expert systems in business on data communications and on computer‐aided design and manufacture. He can be contacted at the CIM Institute Cranfield University Cranfield Bedford MK43 0AL UK. Tel: 01234 754073 Fax: 01234 750852. Lecturer and the Research Manager at the CIM Institute. He is the Principal Investigator of this Project. He also works in various European Commission funded research projects in design for manufacture and concurrent engineering. Research Assistant at the CIM Institute at Cranfield University and is working towards a PhD. He is the full‐time Research Associate on the Design for Manufacture in the Extended Enterprise Project. He is involved with many aspects of the project but is particularly involved in the area of design for manufacture/assembly tools and techniques. Manufacturing engineering research group at the BAe Cranfield Manufacturing Centre. He is a Research Associate on the Design for Manufacture in the Extended Enterprise project contributing aerospace manufacturing and business process expertise.

design for manufacture (DFM) is accepted as an important tool toimprove manufacturing competitiveness. Reports on the results of thefirst phase of a study conducted by Cranfield University to establishthe user require... 详细信息

关键词： Aerospace industry Co‐makership Europe Supply‐chain management

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