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Economic impact for integrating constructivism, project-based learning and practice into high quality professional graduate education for engineers in industry to enhance corporate advantage and U.S. competitiveness in the global economy

Economic impact for integrating constructivism, project-base...

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2005 ASEE Annual Conference and Exposition: The Changing Landscape of engineering and Technology Education in a Global World

作者： Snellenberger, J.M. Quick, D.H. Tidwell, J.P. O'Brien, J. Davis, T.I. McHenry, A.L. Bardo, J.W. Dunlap, D.D. Deloatch, E.M. Lee, P.Y. Palmer, H.J. Tricamo, S.J. Depew, D.R. Bertoline, G.R. Dyrenfurth, M.J. Keating, D.A. Stanford, T.G. Rolls-Royce Corporation United States Boeing Company United States Hewlett-Packard United States Raytheon Missile Systems United States Arizona State University East United States Western Carolina University United States Morgan State University United States California Polytechnic State University United States Rochester Institute of Technology United States New Jersey Institute of Technology United States Purdue University United States Rolls-Royce Corporation Indianapolis IN United States ASEE Corporate Members Council United States Allison Advanced Development Company Rolls-Royce Corporation Indianapolis IN United States Boeing Company Meza AN United States Hewlett-Packard Company Palo Alto CA United States Raytheon Missile Systems Tucson AZ United States College of Technology and Applied Sciences Arizona State University East United States Department of Engineering and Technology Western Carolina University United States ASEE Graduate Studies Division School of Engineering Morgan State University United States ASEE College of Engineering California State Polytechnic University United States Kate Gleason College of Engineering Rochester Institute of Technology United States Department of Industrial and Manufacturing Engineering College of Technology Purdue University United States Discovery Resources Envision Center Department of Computer Graphics College of Technology Purdue University United States Department of Graduate Studies College of Technology Purdue University United States Department of Mechanical Engineering University of South Carolina United States Department of Chemical Engineering University of South Carolina United States

This is the fourth of four papers prepared for a special panel session of the National Collaborative Task Force on engineering Graduate Education Reform focusing on new educational approaches and processes that better meet the development needs of the U.S. engineering workforce in industry to enhance global competitiveness. Further graduate development of the U.S. engineering workforce in industry is critical to the continuous improvement, invention, development, and innovation of new technology which is the engine for U.S. economic prosperity and competitiveness. This paper focuses on a unique model for workforce development that represents a significant advancement in professional graduate education extending through the professional masters, professional doctorate and fellow levels of engineering practice. This advancement in professional graduate education forms a new partnership for university-industry engagement for U.S. engineering workforce development that completes a missing piece of the process to better enable U.S. technological innovation which is long overdue. The impact of project-based learning on industrial innovation is evidenced. This model is designed specifically to support the on-site engineering process for continuous improvement and innovation in industry. It purposefully integrates postgraduate professional education for industry's employed engineers with on-site technology development projects that are chosen to be directly relevant to industry's continuous innovation needs and high-end engineering projects. The returns for enhanced corporate advantage generated through this unique model are measured as a matrix of increasing complexity of economic worth of on-site projects and of increasing human proficiency gained for leadership of technological innovation.

关键词： Learning systems

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A new partitioning algorithm for considering paging load distribution in mobile communication systems

A new partitioning algorithm for considering paging load dis...

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IEEE Conference on Vehicular Technology (VTC)

作者： Dong-Jun Lee HyeJeong Lee Dong-Ho Cho Mobile Development Team Telecommunication Systems Division Information & Communication Business Samsung Electronics Company Limited South Korea Division of Electrical Engineering Department of Electrical Engineering and Computer Science Korea Advanced Institute of Science and Technology South Korea

ISBN: (纸本)0780382552

When the cells in a location area are paged sequentially, based on specific information, such as last registered area or mobile speed, the paging load may be non-uniformly distributed among the cells. This non-uniform paging traffic causes additional paging delay due to the increasing waiting time in cells that have a high paging load. We introduce a new partitioning strategy in which the paging sequence in a location area is optimized according to both the location probability of a mobile terminal and the paging load distribution among the cells. Numerical results show that our proposed strategy performs almost equivalently to the optimal one and outperforms the conventional paging scheme with respect to paging delay.

关键词： Partitioning algorithms Mobile communication Paging strategies Probability distribution Quality of service Mobile computing Business communication computer science Added delay Delay effects

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Experimental assessment of media synchronization quality in IEEE 802.11 b under Bluetooth interference

Experimental assessment of media synchronization quality in ...

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IEEE International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC)

作者： M. Kato H. Okura K. Ito S. Tasaka Digital Systems Development Center BU Sanyo Electric Company Limited Gifu Japan Department of Computer Science and Engineering Nagoya Institute of Technology Nagoya Japan

This paper assesses the media synchronization quality of audio-video transmission over the IEEE 802.11b wireless LAN under Bluetooth interference by experiment. In this situation, the temporal constraints of audio and video may be disturbed, since the Bluetooth interference cause delay jitter due to retransmission and carrier sensing in the MAC layer of IEEE 802.11b. In the experiment, a media server transfers stored video and audio streams to a mobile terminal over an IEEE 802.11b wireless LAN; as radio interference from Bluetooth, two other terminals transmit data over Bluetooth at the same time. We examine the influence of Bluetooth on the audio-video transmission over IEEE 802.11b in terms of the Bluetooth signal level and its data load. We also apply a media synchronization control scheme and confirm its effectiveness.

关键词： Bluetooth Interference Streaming media Wireless LAN Frequency synchronization Delay Spread spectrum communication Jitter Wireless personal area networks Media Access Protocol

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Site specific WLAN and WPAN coexistence evaluation

Site specific WLAN and WPAN coexistence evaluation

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IEEE Conference on Wireless Communications and Networking

作者： I. Howitt Seung Yong Ham Electrical & Computer Engineering Department North Carolina State University Charlotte NC USA System Development Team Telecommunication Systems Division Samsung Electronics Company Limited South Korea

Evaluating the coexistence between wireless local area networks and wireless personnel area networks is an important issue for determining usage policies for wireless devices that are collocated and sharing the same frequency spectrum. A method is presented for evaluating the impact Bluetooth piconets will have on IEEE 802.11b performance when collocated within a specific building layout. The method is centered on analytically evaluating the probability of collision between an 802.11b packet and packets from Bluetooth piconets. The analytical model is based on a parametric representation of the Bluetooth interference environment and a site specific propagation model used to estimate the received signal powers.

关键词： Wireless LAN Bluetooth Personal area networks Analytical models Sensor arrays Wireless sensor networks Downlink Telecommunication computing Intelligent systems Personnel

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System identification for nano-control: A finite wordlength problem

System identification for nano-control: A finite wordlength ...

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IEEE Conference on Control Technology and Applications (CCTA)

作者： A. Okao M. Ikeda R. Takahashi Dalnlppon Screen Manufacturing Company Limited Research and Development Center Kamigyo Kyoto Japan Department of Computer-Controlled Mechanical Systems Graduate School of Engineering Osaka University Suita Osaka Japan Frontier Research Center Graduate School of Engineering Osaka University Suita Osaka Japan

For system identification of continuous-time plants, we commonly use digital data converted from analog signals. Since digital variables are of finite wordlengths, they contain quantization errors. Such errors may deteriorate identification accuracy significantly, especially in the case of mechanical systems where large movement and precise positioning in nano meter orders are required. To overcome this problem, the present paper proposes to estimate the quantization errors and thus true analog sampled signals to improve identification accuracy. Estimation of quantization errors and system identification are carried out simultaneously.

关键词： System identification Control systems Quantization Signal processing Estimation error Analog computers Mechanical systems Data engineering Parameter estimation Least squares approximation

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Modeling of temperature dependent contact resistance for analysis of ESD reliability

Modeling of temperature dependent contact resistance for ana...

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Annual International Symposium on Reliability Physics

作者： Kwang-Hoon Oh Jung-Hoon Chun K. Banerjee C. Duvvury R.W. Dutton Discrete Team Fairchild Korea Semiconductor Company Limited South Korea Center for Integrated Systems University of Stanford CA USA Electrical and Computer Engineering University of California Santa Barbara CA USA Texas Instruments Silicon Technology Development Dallas TX USA

A physically based model has been formulated to represent temperature-dependent specific contact resistance. The new model can generate silicided contact resistance values at high temperatures and is capable of predicting high current behavior of silicided deep submicron devices. Implications for failure analysis of advanced silicided devices are also considered. Using the model, it has been demonstrated how current localization is affected by increased temperature, which is critical for predicting ESD reliability.

关键词： Temperature dependence Contact resistance Electrostatic discharge Silicides CMOS technology Degradation Circuit optimization Thermal stresses Predictive models Semiconductor device modeling

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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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The effect of segmentation mismatch on quality of continuous media transmission by Bluetooth

The effect of segmentation mismatch on quality of continuous...

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IEEE International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC)

作者： H. Okura M. Kato S. Tasaka Digital Systems Development Center SANYO Electric Company Limited Gifu Japan Department of Electrical and Computer Engineering Nagoya Institute of Technology Nagoya Japan

This paper examines the effect of segmentation mismatch on audio-video transmission by Bluetooth. We focus on the segmentation mismatch caused by the difference between the RFCOMM maximum frame size and the baseband packet payload size. By experiment, we assessed the maximum throughput and media synchronization quality for various types of ACL packets. In the experiment, a media server transferred stored video and audio streams to a single terminal with point-to-point communication; we supposed no fading environment and added white noise by which interference from DSSS systems is modeled. The experiment showed that the effect of segmentation mismatch is large especially when the total bit rate of the two streams is near the channel transmission rate. We also observed that the media synchronization control is effective in compensating for the disturbance by the segmentation mismatch in noisy environments.

关键词： Bluetooth Streaming media Baseband Payloads Throughput Fading White noise Interference Spread spectrum communication Bit rate

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Power estimation at architecture level for embedded systems

Power estimation at architecture level for embedded systems

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IEEE International Symposium on Circuits and systems (ISCAS)

作者： H. Mizuno H. Kobayashi T. Onoye I. Shirakawa Corporate Development Division Matsushita Elecrric Indusrrial Company Limited Japan Department of Information Systems Engineering Graduate School of Engineering Osaka University Japan Department of Communications & Computer Engineering Graduate School of Infcrmatics Kyoto University Japan

This paper proposes a practical approach to the power estimation of an embedded hardware/software codesign system at the architecture level, which intends to optimize the hardware/software configuration from the aspects of power dissipation, hardware cost, and processing performance. A distinctive feature of this approach consists in constructing a precise power estimation model at the architecture level, proper to each hardware component of an embedded system, such as CPU core, RAM/ROM, cache memory, and application-specific hardware, by taking account of the data transfer as well as the functional performance. The power estimation scheme in this model is incorporated into an existing instruction set simulator, so that the power dissipation can be evaluated accurately together with other design factors. This estimation approach enables a set of precise design specifications at the architecture level, which contributes much toward the enhancement of the design ability dedicated to mobile appliances.

关键词： Embedded system Hardware computer architecture Embedded software Software performance Power dissipation Power system modeling Software systems Cost function Read-write memory

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PMU based midterm stability evaluation of wide-area power system

PMU based midterm stability evaluation of wide-area power sy...

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IEEE/PES Transmission and Distribution Conference and Exhibition: Asia and Pacific

作者： Y. Ota H. Ukai K. Nakamura H. Fujita Department of Electrical and Computer Engineering Nagoya Institute of Technology Nagoya JAPAN Department of Systems Management and Engineering Nagoya Institute or Technology Nagoya JAPAN Electric Power Research & Development Center Chubu Electric Power Company Midori-ku Nagoya JAPAN

Since the aspect of instability phenomena during midterm is complicated, the stability analysis is significant in order to keep the power system stable. Synchronized phasor angles obtained by the PMU (phasor measurement unit) provide the effective information for evaluating the stability of a bulk power system. This paper proposes a midterm stability evaluation method of the wide-area power system by using the synchronized phasor measurements. Clustering and aggregating the power system to some coherent generator groups, the stability margin of each coherent group is quantitatively evaluated on the basis of the one machine and infinite bus system. The midterm stability of a longitudinal power system model of Japanese 60 Hz systems constructed by the PSA (Power System Analyzer), which is a hybrid-type power system simulator, is practically evaluated using the proposed method.

关键词： Power system stability Phasor measurement units Power system analysis computing Power system measurements Power system modeling Hybrid power systems Power system simulation Stability analysis Power measurement Power generation

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