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Annual International Conference of the IEEE engineering in Medicine and Biology Society (EMBC)

作者： Teruhiro Haga Sosuke Tsukamoto Hiroshi Hoshino Masters Program in Electronic and Computer Engineering Graduate School of Science and Engineering Tokyo Denki University Hiki Saitama Japan School of Science and Engineering Tokyo Denki University Hiki Saitama Japan

In this paper, a method of estimating both the position and the rotation angle of an object on a measurement stage was proposed. The system utilizes the radio communication technology and the directivity of an antenna. As a prototype system, a measurement stage (a circle 240mm in diameter) with 36 antennas that placed in each 10 degrees was developed. Two transmitter antennas are settled in a right angle on the stage as the target object, and the position and the rotation angle is estimated by measuring efficiency of the radio communication of each 36 antennas. The experimental result revealed that even when the estimated location is not so accurate (about a 30 mm error), the rotation angle is accurately estimated (about 2.33 degree error on average). The result suggests that the proposed method will be useful for estimating the location and the direction of an object.

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Naval Engineers Journal 2009年第6期109卷

作者： Joseph F. Yurso President Joseph F. Yurso:is currently director of technical development for Q.E.D. Systems Inc. He received a Bachelors of Science in mechanical engineering from The Pennsylvania State University and an Masters of Science in mechanical engineering from the Naval Postgraduate School. He also completed a special management program at Carnegie Mellon University. Prior to entering the Navy as an engineering duty officer Mr. Yurso was a refrigeration and air conditioning engineer for the Bureau of Ships. His Navy experience includes engineer officer of a combatant ship submarine type desk quality assurance officer and production officer in naval shipyards and planning officer quality assurance officer and deputy supervisor in Supervisor of Shipbuilding offices. His two command tours were as Supervisor of Shipbuilding Groton Connecticut (1980-81) and Shipyard Commander Portsmouth Naval Shipyard Kittery Maine (1981-84). He was awarded the Legion of Merit for both of these tours. Mr. Yurso has been a member of ASNE since 1964. He is a life member and a sustaining member of the Society. He has been active in several Sections including Charleston Northern and Southern New England and Tidewater. He is a former chairman of the Tidewater Section and was the chairman of the ASNE Fleet Maintenance Symposium in 1991. He served as Council vice president from 1993 to 1996 and as a member of Council for six years. He was a contributing author to the Society's first edition of Naval Engineering and American Sea Power. In 1993 he was awarded the Frank G. Law Award for his dedication and longtime service to the Society. Mr. Yurso maintains memberships in other societies including the American Society of Mechanical Engineers Sigma Xi the American Society for Quality Control Naval Institute and Tidewater Association of Service Contractors. He has held registered professional engineer status in two states and is listed inWho's Who in Science and Engineering.

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Acquisition and maintenance of knowledge for online navigation suggestions

Acquisition and maintenance of knowledge for online navigati...

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作者： Velásquez, Juan D. Weber, Richard Yasuda, Hiroshi Aoki, Terumasa Research Center for Advanced Science and Technology University of Tokyo Tokyo 153-8904 Japan Center for Collaborative Research University of Tokyo Tokyo 153-8904 Japan Department of Industrial Engineering University of Chile Chile Masters Program of Operations Management Japan

The Internet has become an important medium for effective marketing and efficient operations for many institutions. Visitors of a particular web site leave behind valuable information on their preferences, requirements, and demands regarding the offered products and/or services. Understanding these requirements online, i.e., during a particular visit, is both a difficult technical challenge and a tremendous business opportunity. Web sites that can provide effective online navigation suggestions to their visitors can exploit the potential inherent in the data such visits generate every day. However, identifying, collecting, and maintaining the necessary knowledge that navigation suggestions are based on is far from trivial. We propose a methodology for acquiring and maintaining this knowledge efficiently using data mart and web mining technology. Its effectiveness has been shown in an application for a bank's web site. Copyright © 2005 The Institute of Electronics, Information and Communication Engineers.

关键词： Internet

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On an upper bound of the secrecy capacity for a general wiretap channel

On an upper bound of the secrecy capacity for a general wire...

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IEEE International Symposium on Information Theory

作者： H. Koga N. Sato Graduate School of Systems and Information Engineering University of Tsukuba Tsukuba Ibaraki Japan Masters Program of Science and Engineering University of Tsukuba Tsukuba Ibaraki Japan

This paper is concerned with coding theorems for a generalized wiretap channel. In the problem of the wiretap channel it is important to characterize the secrecy capacity, i.e., the maximum achievable rate of information securely transmitted from a sender to a legitimate receiver in the presence of a wiretapper. In our model, channels are not restricted to memoryless channels. We first define the secrecy capacity C s and evaluate C s from information-spectrum approach. We give a new upper bound of C s not including auxiliary random variables and explore conditions under which the obtained upper bound becomes tight for the cascaded wiretap channel

关键词： Upper bound Codes Memoryless systems Random variables Decoding Systems engineering and theory Books Joining processes

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Controller design of the locomotion system for an autonomous cleaning system

Controller design of the locomotion system for an autonomous...

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International Conference on Mechatronics (ICM)

作者： M.A. Jarrah M. Al-Khedher American University of Sharjah Masters of Science in Mechatronics Engineering Program UAE American University of Sharjah Masters of Science in Mechatronics Engineering Program

This paper presents the design and implementation of autonomous cleaning system algorithm for Dubai International Airport. Different approaches were presented to build the locomotion platform for an autonomous cleaning system cleaning. Two types of controllers were discussed to achieve the design objectives: conventional gain scheduled PID controller, and fuzzy PID controller. Tests have been conducted for the PID fuzzy controller in the preliminary design analysis.

关键词： Control systems Buildings Robots Surface cleaning Three-term control Rail transportation Algorithm design and analysis Airports Fuzzy control Humans

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Parallel implementation of Strassen's matrix multiplication algorithm for heterogeneous clusters

Parallel implementation of Strassen's matrix multiplication ...

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International Symposium on Parallel and Distributed Processing (IPDPS)

作者： Y. Ohtaki D. Takahashi T. Boku M. Sato Masters program in Science and Engineering University of Tsukuba Japan Institute of Information Sciences and Electronics University of Tsukuba Japan

Summary form only given. We propose a new distribution scheme for a parallel Strassen's matrix multiplication algorithm on heterogeneous clusters. In the heterogeneous clustering environment, appropriate data distribution is the most important factor for achieving maximum overall performance. However, Strassen's algorithm reduces the total operation count to about 7/8 times per one recursion and, hence, the recursion level has an effect on the total operation count. Thus, we need to consider not only load balancing but also the recursion level in Strassen's algorithm. Our scheme achieves both load balancing and reduction of the total operation count. As a result, we achieve a speedup of nearly 21.7% compared to the conventional parallel Strassen's algorithm in a heterogeneous clustering environment.

关键词： Clustering algorithms Load management Hardware Concurrent computing Computer networks Costs Scalability Parallel processing Supercomputers Libraries

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Performance of cluster-enabled OpenMP for the SCASH software distributed shared memory system 03

Performance of cluster-enabled OpenMP for the SCASH software...

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IEEE/ACM International Symposium on Cluster Computing and the Grid (CCGRID)

作者： Y. Ojima M. Sato H. Harada Y. Ishikawa Masters Program in Science and Engineering University of Tsukuba Japan Institute of Information Sciences and Electronics University of Tsukuba Japan Hewlett Packard Japan Limited Japan University of Tokyo Japan

ISBN: (纸本)9780769519197

OpenMP has attracted widespread interest because it is an easy-to-use parallel programming model for shared memory multiprocessor systems. Implementation of a "cluster-enabled" OpenMP compiler is presented. Compiled programs are linked to the page-based software distributed-shared-memory system, SCASH, which runs on PC clusters. This allows OpenMP programs to be run transparently in a distributed memory environment. The compiler converts programs written for OpenMP into parallel programs using the SCASH static library, moving all shared global variables into SCASH shared address space at runtime. As data mapping has a great impact on the performance of OpenMP programs compiled for software distributed-shared-memory, extensions to OpenMP directives are defined for specifying data mapping and loop scheduling behavior, allowing data to be allocated to the node where it is to be processed. Experimental results of benchmark programs on PC clusters using both Myrinet and fast Ethernet are reported.

关键词： Software performance Software systems Ethernet networks Communication system software Parallel programming Multiprocessing systems Software libraries Runtime Workstations Message passing

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Human systems integration and advanced technology in engineering department workload and manpower reduction

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NAVAL ENGINEERS JOURNAL 2003年第1期115卷 57-65页

作者： Lively, KA Seman, AJ Kirkpatrick, M KENNETH A. LIVELY graduated from the University of Colorado with a BS in applied mathematics and an MS in mathematics in 1976 and from the Massachusetts Institute of Technology with an MS in electrical engineering and the degree ocean engineer in naval architecture and marine engineering in 1984. He retired from the U.S. Navy in 1989 after 23 years of service. Assignments included electrical officer on the USS Constellation (CV 64) project engineer for the DDG 51 machinery control system (NAVSEA) and DDG 51 Technical Director (NAVSEA). He was vice president of the PDI Division of Bird-Johnson Company from July 1989 to November 1998 where he managed various gas turbine and machinery controls related development projects. He joined Anteon Corporation's Systems Engineering Group as senior controls engineer in December 1998 where he provided technical support to the integrated power systems program (NAVSEA PMS 510) and managed the Office of Naval Research Afloat Laboratory. DR. MARK KIRKPATRICK is currently an independent consultant in human factors and work-load/manning analysis and modeling. He holds a Ph.D. degree in experimental psychology from The Ohio State University and has 34 years of experience in applied human factors. From 1982 through 2000 Dr. Kirkpatrick served as the senior vice president of Carlow International. Prior to joining Carlow in 1982 Dr. Kirkpatrick served as a member of the technical staff at North American Rockwell's Missiles Division and as a project director and vice president for Essex Corporation. His areas of expertise include workload simulation task analysis operator-in-the-loop simulation human performance experimentation statistical analysis and human factors T&E. He has directed and/or participated in human factors projects for the U.S. Navy U.S. Army NASA Department of Transportation the U.S. Nuclear Regulatory Commission and private industry. ANTHONY J. SEMAN III is the technical manager for the reduced ship's crew by virtual presence (RSVP) advanced technology d

Aboard current ships, such as the DDG 51, engineering control and damage control activities are manpower intensive. It is anticipated that, for future combatants, the workload demand arising from operation of systems under conditions of normal steaming and during casualty response will need to be markedly reduced via automated monitoring, autonomous control, and other technology initiatives. Current DDG 51 class ships can be considered as a manpower baseline and under Condition III typical engineering control involves seven to eight watchstanders at manned stations in the Central Control Station, the engine rooms and other machinery spaces. In contrast to this manning level, initiatives such as DD 21 and the integrated engineering plant (IEP) envision a partnership between the operator and the automation system, with more and more of the operator's functions being shifted to the automation system as manning levels decrease. This paper describes some human systems integration studies of workload demand reduction and, consequently, manning reduction that can be achieved due to application of several advanced technology concepts. Advanced system concept studies in relation to workload demand are described and reviewed including. Piecemeal applications of diverse automation and remote control technology concepts to selected high driver tasks in current DDG 51 activities. Development of the reduced ship's crew by virtual presence system that will provide automated monitoring and display to operators of machinery health, compartment conditions, and personnel health. The IEP envisions the machinery control system as a provider of resources that are used by various consumers around the ship. Resource needs and consumer priorities are at all times dependent upon the ship's current mission and the availability of equipment pawnbrokers.

关键词： Naval warfare

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Fuzzy rules acquisition using interactive genetic algorithms

Fuzzy rules acquisition using interactive genetic algorithms

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SICE Annual Conference

作者： T. Onisawa Y. Fujihara Institute of Engineering Mechanics and Systems University of Tsukuba Tsukuba Japan Masters Program in Science and Engineering Onisawa Laboratory Institute of Engineering Mechanics and Systems University of Tsukuba Tsukuba Japan

This paper discusses fuzzy rules acquisition and their linguistic expressions using the interactive GA. The number of fuzzy rules is also determined by the presented approach. A fuzzy rule is represented by a chromosome, and individuals with various numbers of chromosomes are considered by the GA operations. Fuzzy sets in the acquired fuzzy rules are expressed using plain linguistic labels. We attach great importance to a qualitative evaluation of rule intelligibility as well as a quantitative evaluation by a fitness function. The presented approach is applied to car control for running through crank-typed courses. Simulation results show that the acquired fuzzy rules approach is acceptable from the viewpoints of rule intelligibility, the number of fuzzy rules and control results.

关键词： Genetic algorithms Fuzzy sets Biological cells Fuzzy control Fuzzy systems Humans Genetic engineering Systems engineering and theory Control systems Graphics

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Future Coast Guard Cutter (FCGC)

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NAVAL ENGINEERS JOURNAL 1999年第3期111卷 111-124页

作者： Brougham, WJ Lt. William J. Brougham:is an Engineering Duty officer (ED) in the Navy undergoing advanced studies at the Massachusetts Institute of technology. He has had tours as a submarine line officer as well as a Program Manager's Assistant for Weapons System Safety Test and Evaluation at NAVSEA PMS-350 before transferring into the ED community. Current studies include dual masters degrees in naval construction and engineering and mechnical engineering from MIT as well as a master of science management of technology (MOT) from the Sloan School of Management MIT. He has an MBA finance and investments from The George Washington University (1996) and a BS general engineering/control systems from the University of Illinios-Urbana (1988). He is a member of both the American Society of Naval Engineers and the Society of Naval Architects and Marine Engineers.

The Coast Guard wants to replace their aging cutter fleet. The new construction Deepwater Project would like to integrate their efforts with the DD 21 family of ships but the Coast Guard does not want to wait for the Navy program to mature. This study investigates the engineering feasibility of an alternate near term solution-conversion of the decommissioning Oliver Hazard Perry class frigates into Future Coast Guard Cutters (FCGC). Detailed analyses for combat system selection, propulsion plant and endurance range Limitations, and manning and automation issues form the foundation for new ship arrangements capable of supporting a mixed gender crew. Additional analysis reviews small boat operations, habitability requirements, ship stability structural loading, and a cost estimation technique. The converted Oliver Hazard Perry class frigates were shown to provide a technically feasible interim solution to replace decommissioning Coast Guard cutters while meeting or exceeding the Coast Guard requirements for a conservatively estimated cost of $141M (FY98).

关键词： Naval vessels

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