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2005 IEEE International Conference on Wireless and Mobile Computing, Networking and Communications, WiMob'2005

作者： Ma, Tinghuai Kim, Yong-Deak Ma, Qiang Tang, Meili Zhou, Weican Computer Science Department NanJing University of Information Science and Technology China Electrical and Computer Engineering Department College of Information Technology Ajou University Korea Republic of Public Administration Department NanJing University of Information Science and Technology China Mathematics Department NanJing University of Information Science and Technology China

ISBN: (纸本)0780391829

Context awareness is emphasized in order to provide automatic services in smart home. This paper uses case based reasoning as the reasoning method which solves the problem "In the first phase, we don't know exactly about the key processes and their interdependencies in smart home's context". The context's contents in smart home are described in this paper. Also, case representation, case storage and similarity calculation are discussed in smart home's context awareness. We propose a framework of context aware based on CBR, and discuss the case adaptation in detail. © 2005 IEEE.

关键词： Telecommunication services

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Reliability and cost analysis of interconnected power systems with jointly owned generating units operating in a market environment

Reliability and cost analysis of interconnected power system...

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CIGRE/IEEE PES International Symposium

作者： E.N. Dialynas D. Michos D.J. Papakammenos School of Electrical and Computer Engineering National and Technical University of Athens Athens Greece Public Power Corporation of Greece Greece

The paper describes the main concepts and features of an efficient and improved computational method that was developed for conducting reliability assessment studies of interconnected power systems that may also contain jointly owned generating units operating in a market environment. It is a method based on the Monte-Carlo sequential simulation approach and can analyze systems with any given configuration and operational features. The operational behavior of the interconnected systems, interconnection lines and jointly owned generating units are simulated efficiently so that a more accurate reliability assessment is achieved. An extended set of appropriate reliability and operational indices is calculated for each system, the interconnection facilities and each jointly owned generating unit. Reliability indices can also be calculated for each load-point of interest belonging to any system. All these indices can be used to measure the changes obtained due to the operation of jointly owned generating units and can help in determining the possible advantages and disadvantages of their operation. Finally, very important indices are calculated concerning the operation of power systems in a market environment that show the additional information being gained. The analysis of a typical power system based on the IEEE-RTS is also included for various case studies representing certain operating and design features that can be applied

关键词： Power system reliability Power system interconnection Costs Power system analysis computing Power generation Power system simulation Computational modeling Analytical models Interconnected systems Power system measurements

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KINGPINS OR MULES: AN ANALYSIS OF DRUG OFFENDERS INCARCERATED IN FEDERAL AND STATE PRISONS

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Criminology & public policy 2006年第3期3卷

作者： ERIC L. SEVIGNY JONATHAN P. CAULKINS Eric L. Sevigny is a Ph.D. student in the Graduate School of Public and International Affairs at the University of Pittsburgh. Mr. Sevigny's research interests lie in the area of drug policy with an emphasis on enforcement sanctioning international control and treatment/harm reduction. His previous experience includes substance abuse counseling and substance abuse treatment needs research of special populations including prisoners the homeless and adolescents. Mr. Sevigny received a B.A. in Psychology from Middlebury College. Jonathan P. Caulkins Ph.D. is Professor of Operations Research and Public Policy at Carnegie Mellon University's Heinz School of Public Policy. Dr. Caulkins specializes in mathematical modeling and systems analysis of social policy problems with a particular focus on issues pertaining to drugs crime violence and prevention. Dr. Caulkins has also published on airline operations sulfur dioxide pollution trading markets Internet-based advertising flexible manufacturing systems and personnel performance evaluation among other topics. At RAND he has been a consultant visiting scientist codirector of RAND's Drug Policy Research Center (1994–1996) and founding director of RAND's Pittsburgh office (1999–2001). Dr. Caulkins received a B.S. and M.S. in Systems Science from Washington University and an S.M. in Electrical Engineering and Computer Science and Ph.D. in Operations Research both from M.I.T.

Research Summary: Drug policy reformers and defenders contest the extent to which low-level drug offenders are being sent to prison and for how long. Using data from the Survey of Inmates in Federal and State Correctional Facilities, 1997 (BJS, 2000), we assess the seriousness of incarcerated drug offenders along dimensions of dangerousness, culpability, and harm—specifically, functional role and drug group participation, type and amount of drugs, firearms involvement, and criminal conviction and arrest history. We find that only about 1.6% of federal and 5.7% of state inmates can be described as “unambiguously low-level.” Alternatively, not many are “kingpins.” Rather, most fall into a middle spectrum representing different degrees of seriousness that depend on what factors are emphasized. policy Implications: Our findings dampen hopes of dramatically reducing prison populations by getting out of prison those who are unambiguously low-level drug offenders. They simply do not represent the majority of incarcerated drug offenders. In particular, most played some role in distribution, so eliminating prison terms for users (decriminalization) would not have affected many now in prison. Indeed, if decriminalization increased demand, it could plausibly increase prison populations by increasing the number of suppliers still subject to imprisonment. On the other hand, “drug courier exceptions” to sentencing laws that apply to minor role offenders possessing large quantities could have a greater prison reduction impact.

关键词： Incarceration, Drug policy, Inmate Surveys, Low-Level Drug Offenders, Culpability

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Preventing future blackouts by means of enhanced electric power systems control: From complexity to order

Preventing future blackouts by means of enhanced electric po...

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作者： Ilić, Marija D. Allen, Eric H. Chapman, Jeffrey W. King, Charles A. Lang, Jeffrey H. Litvinov, Eugene IEEE United States Department of Electrical and Computer Engineering Carnegie Mellon University Pittsburgh PA 15213-3890 United States Albany NY 12203 United States Endimensions San Jose CA 95129 United States Cambridge MA 02139 United States ISO New England Holyoke MA 01040 United States Engineering Public Policy Department Carnegie-Mellon University Pittsburgh PA United States Newly Formed Engineering Systems Division MIT United States Albany United States EnDimensions LLC San Jose CA United States Market Services Albany State of New York United States Department of Electrical Engineering and Computer Science United States ISO New England Heading R and D and Technology Strategy in the Organization United Kingdom

This paper concerns the critical role enhanced control will play in the operating of future electric power systems reliably and efficiently. The nonstandard control problems are due to a large variety of controllers, presently acting in a multirate mode at various levels of the system. Today's monitoring and control logic is largely effective during normal conditions. This paper concerns its possible enhancements which might enable the system to operate reliably over broader ranges of loading and equipment status. In particular, it is suggested that major benefits could come from providing computer tools to assist human operators with their decision making when the system is under stress. A multilayered approach is introduced to support: 1) on-line adjustment of available resources;2) monitoring the interconnection based on qualitative indices (QIs) essential for deciding the severity of the operating mode;and 3) using the QIs to adjust structure of control as the system evolves from one mode to the next. An equivalenced model of the Northeast Power Coordinating Council (NPCC) interconnection is used to illustrate the potential of enhanced control in scenarios that resemble the blackout of August 2003. Also, the potential for efficient use of the resources during normal conditions is illustrated using this multilayered monitoring and control architecture. © 2005 IEEE.

关键词： Electric power systems

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Design of efficient generation markets

Design of efficient generation markets

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作者： Baldick, Ross Helman, Udi Hobbs, Benjamin F. O'Neill, Richard P. Department of Electrical and Computer Engineering University of Texas Austin TX United States United States Department of Geography and Environmental Engineering Johns Hopkins University Baltimore MD United States Department of Electrical and Computer Engineering University of Texas Austin United States Office of Markets Tariffs and Rates Federal Energy Regulatory Commission Washington DC United States IEEE United States Department of Geography and Environmental Engineering Whiting School of Engineering Johns Hopkins University Baltimore MD United States Department of Applied Mathematics and Statistics United States California ISO Market Surveillance Committee United States Policy Studies Unit Energieonderzoek Centrum Nederlands Netherlands Federal Energy Regulatory Commission Washington DC United States

The design of spot markets for generation services, such as energy, regulation, and operating reserves, and longer term markets for capacity, remain in evolution in many countries. Market design includes definition of the service, bid, or offer requirements, and rules for pricing and financial settlement. In the United States, most organized regional markets have converged on similar elements of spot market design. The design of capacity markets remains influx. Market power mitigation is currently a regulatory requirement in the United States, and experience with different methods shows that it must be carefully aligned with market design to ensure both efficient pricing and efficient investment. This paper surveys these topics and their relationships to each other and identifies researchable issues. © 2005 IEEE.

关键词： Product design

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Design of high-performance tunable filters based on current conveyors

Design of high-performance tunable filters based on current ...

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2005 European Conference on Circuit Theory and Design

作者： Lopez-Martin, Antonio J. Ramirez-Angulo, Jaime Carvajal, Ramon G. Dept. of Electrical and Electronic Eng. Public University of Navarra Campus Arrosadia E-31006 Pamplona Spain Klipsch School of Electrical and Computer Engineering New Mexico State University P.O. Box: 30001 Las Cruces NM 88003-8001 United States Dept. of Electronic Eng. School of Engineering University of Seville Camino de Los Descubrimientos E- 41092 Sevilla Spain

ISBN: (纸本)0780390660

Extra features are added to the conventional CCII in order to extend the use of CCII-based filters to high-performance applications in submicron CMOS technologies. They include continuous programming of current gain and fully balanced low voltage low power operation in moderate inversion region. Measurement results of a biquad fabricated in a 0.5-μm CMOS process are included that validate the proposed approach.

关键词： Electric filters

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A 70dB SFDR CMOS transconductor

A 70dB SFDR CMOS transconductor

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2005 European Conference on Circuit Theory and Design

作者： Lopez-Martin, Antonio J. Carvajal, Ramon G. Ramirez-Angulo, Jaime Dept. of Electrical and Electronic Eng. Public University Navarra Campus Arrosadia E-31006 Pamplona Spain Klipsch School of Electrical and Computer Engineering New Mexico State University P.O. Box: 30001 Las Cruces NM 88003-8001 United States Dept. of Electronic Eng. School of Engineering University of Seville Camino De Los Descubrimientos E- 41092 Sevilla Spain

ISBN: (纸本)0780390660

A CMOS transconductor suitable for very low distortion analog signal processing over a rail-to-rail input range is presented. Very low impedance virtual ground nodes obtained by local negative feedback allow a highly linear voltage to current conversion by passive resistors. Low mismatch sensitivity is achieved as the current generated in the resistors is not internally replicated. Measurement results for a 0.5μm CMOS prototype show a spurious-free dynamic range at 1MHz higher than 70dB for a 6Vpp input and a dual supply of ±1.5V.

关键词： Saturable core reactors

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Design of high-performance tunable filters based on current conveyors

Design of high-performance tunable filters based on current ...

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European Conference on Circuit Theory and Design, ECCTD

作者： A.J. Lopez-Martin J. Ramirez-Angulo R.G. Carvajal Department of Electrical and Electronic Engineering Public University of Navarra Pamplona Spain Klipsch School of Electrical and Computer Engineering New Mexico State University Las Cruces NM USA Department of Electronic Engineering School of Engineering Camino De Los Descubrimientos University of Seville Seville Spain

Extra features are added to the conventional CCII in order to extend the use of CCII-based filters to high-performance applications in submicron CMOS technologies. They include continuous programming of current gain and fully balanced low voltage low power operation in moderate inversion region. Measurement results of a biquad fabricated in a 0.5-/spl mu/m CMOS process are included that validate the proposed approach.

关键词： Filters CMOS technology Low voltage Energy consumption Breakdown voltage Degradation Tunable circuits and devices Electronic mail CMOS process Power supplies

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Microring resonators for biochemical sensing

Microring resonators for biochemical sensing

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Conference on Lasers and Electro-Optics, CLEO 2005

作者： Yalçin, Ayça Popat, Ketul C. Anthes-Washburn, Matthew Chhbouki, Nabil Desai, Tejal A. Selim Ünlü, M. Goldberg, Bennett B. Dept .of Electrical and Computer Engineering Boston University 8 St. Mary's St. Boston MA 02215 United States Dept. of Biomedical Engineering Boston University United States West Roxbury High School Boston Public Schools Boston MA United States Little Optics Inc. Annapolis Junction MD United States

A vertically coupled glass microring resonator biosensor is introduced with Q˜12000. We demonstrated sensitivity to refractive index change in medium and reproducibility. Theoretical refractive index sensitivity from ... 详细信息

ISBN: (纸本)1557527709

关键词： Refractive index

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A 70dB SFDR CMOS transconductor

A 70dB SFDR CMOS transconductor

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European Conference on Circuit Theory and Design, ECCTD

作者： A.J. Lopez-Martin R.G. Carvajal J. Ramirez-Angulo Department of Electrical and Electronic Engineering Public University of Navarra Pamplona Spain Klipsch School of Electrical and Computer Engineering New Mexico State University Las Cruces NM USA Department of Electronic Eng School of Engineering Camino De Los Descubrimientos University of Seville Seville Spain

A CMOS transconductor suitable for very low distortion analog signal processing over a rail-to-rail input range is presented. Very low impedance virtual ground nodes obtained by local negative feedback allow a highly linear voltage to current conversion by passive resistors. Low mismatch sensitivity is achieved as the current generated in the resistors is not internally replicated. Measurement results for a 0.5/spl mu/m CMOS prototype show a spurious-free dynamic range at 1MHz higher than 70dB for a 6Vpp input and a dual supply of /spl plusmn/1.5V.

关键词： Transconductors Resistors CMOS process Signal processing Rail to rail inputs Impedance Negative feedback Voltage Distortion measurement Prototypes

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