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Gray relational evaluation model with preferences based on characteristics-AHP

Gray relational evaluation model with preferences based on c...

引用

International Conference on electrical and Control engineering, ICECE 2010

作者： Gang, Li Xiaowei, Zhang Chao, Yang Department of Mathematics and Information Science Zhengzhou University of Light Industry Zhenzhou China Department of Public Computer Teach. Zhoukou Normal College Zhoukou China School of Electrical Information and Engineering Zhengzhou University of Light Industry Zhenzhou China

ISBN: (纸本)9780769540313

An evaluation model of Gray Relational Analysis with preferences of decision makers based on Characteristics-AHP is built. This model makes fully use of the advantage of gray theory on the fields of performance evaluation for small sample and poor data. Considering preference degree of decision-makers not only makes evaluation result objective and fairness, but also reflects decision-making fact. On preference weight's determination, characteristics-AHP model is used, which reduces subjective effect. Empirical practice and simulation analysis show the advantage and applicability of this model on relative fields. © 2010 IEEE.

关键词： Decision making

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Three novel improved CMOS capacitance scaling schemes

Three novel improved CMOS capacitance scaling schemes

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IEEE International Symposium on Circuits and Systems (ISCAS)

作者： Jesús Aguado Ruiz Antonio Lopez-Martin Jaime Ramirez-Angulo Electrical and Electronic Engineering Department Public University of Navarra Pamplona Spain Klipsch School of Electrical and Computer Engineering New Mexico State University Las Cruces NM USA

Three novel CMOS capacitance scaling schemes, a comparison between them and some different classic schemes are presented. The novel topologies which use a modified second generation current conveyor, an improved current mirror and a current steering configuration of OTA provide higher values of Q and better frequency responses than the classical structures using basic current mirror schemes, as the simple current mirror and two different cascode current mirrors. Simulation results for the six different studied schemes are presented.

关键词： Capacitance Mirrors Capacitors Dynamic voltage scaling Testing Linearity Circuit topology Frequency Computational modeling Silicon

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A guide for synchronous generator parameters determination using dynamic simulations based on IEEE standards

A guide for synchronous generator parameters determination u...

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International Conference on electrical Machines, ICEM

作者： Juan C. Peqqueña Suni E. Ruppert F. Fajoni Computer and Electrical Engineering School (FEEC) Campinas State University (UNICAMP) Private companies and public institutions in Brazil

This paper shows, through simulations using the software Matlab/Simulink, its library Simpowersystems and the standars IEEE 115-1995, IEEE 1110-2002, how to perform load rejection tests for salient pole synchronous generator and sudden short-circuit test for cylindrical rotor synchronous generator and how to obtain the values of the synchronous generator electrical operational parameters which are important data to perform generator and electrical power system dynamic studies. The paper discuss the d-axis load rejection test, the q-axis load rejection test, the arbitrary axis load rejection test and sudden short-circuit test, saturation is not considered.

关键词： Windings Synchronous generators Mathematical model Load modeling Transient analysis Damping

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A Multi-Layered Adaptive Load Management (ALM) System: Information exchange between market participants for efficient and reliable energy use

A Multi-Layered Adaptive Load Management (ALM) System: Infor...

引用

IEEE PES Transmission and Distribution Conference and Exposition

作者： Jhi-Young Joo Marija D. Ilic Department of Electrical and Computer Engineering Carnegie Mellon University Department of Electrical and Computer Engineering and the Department of Engineering and Public Policy Carnegie Mellon University

ISBN: (纸本)9781424465460

In this paper, we propose a multi-layered adaptive load management (ALM) system capable of integrating large-scale demand response efficiently and reliably. At the tertiary layer, the system/market operator utilizes demand bid curves provided by the load aggregators on behalf of the end-users they serve. This information is processed by the system/market operator together with the bid curves provided by the generators. The information is further used to estimate electricity price and send it to load aggregators. Similarly, at the secondary layer, the load aggregators utilize the demand curves provided to them by the individual end-users. Based on the end-users' requests and the estimated electricity price given by the system/market operator, load aggregators create aggregate demand curves on behalf of all their users, and share them with both the system operator and their own customers. Finally, at the primary layer, individual end-users create their own demand functions while taking into consideration their own needs and preferences. They provide this information to their load aggregator. The proposed ALM system is best implemented online. In this paper, we provide a basic formulation of the multi-layered multi-directional decision making and information exchange in support of the ALM system. We illustrate this process using simple simulations. The proposed ALM can be used to implement demand response for different industry rules, such as fixed rate, time-of-use, and real-time pricing.

关键词： Demand Function Demand Response Real-Time Pricing Adaptive Load Control Adaptive Load Management

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Tunable rail-to-rail FGMOS transconductor

Tunable rail-to-rail FGMOS transconductor

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IEEE International Symposium on Circuits and Systems (ISCAS)

作者： José M. Algueta Miguel Antonio J. Lopez-Martin Jaime Ramirez-Angulo Ramon 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 University of Seville Spain

A tunable CMOS transconductor is presented. Input rail-to-rail operation is achieved using floating-gate MOS (FGMOS) transistors. Tuning is also obtained using FGMOS transistors, which are biased in weak or moderate inversion to achieve precise output current scaling. A technique to set the proper transconductance value independently of process or temperature variations is also included. Measurement and simulation results using a 0.5um CMOS technology are presented to confirm all the circuits and strategies proposed.

关键词： Transconductors Voltage Resistors Tunable circuits and devices MOSFETs Transconductance Railway engineering Circuit simulation CMOS technology Linearity

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The enacted curriculum: A video based analysis of instruction and learning in high school pre-engineering classrooms

The enacted curriculum: A video based analysis of instructio...

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2010 ASEE Annual Conference and Exposition

作者： Prevost, Amy Nathan, Mitchell Stein, Benjamin Phelps, Allen Department of Education Leadership and Policy Analysis University of Wisconsin Madison United States Department of Educational Psychology Curriculum and Instruction and Psychology School of Education University of Wisconsin Madison United States Electrical and Computer Engineering Department University of Wisconsin United States Department of Education Leadership and Policy Analysis Center on Education and Work University of Wisconsin Madison United States

engineering excellence serves as one of the primary vehicles for technological innovation, economic prosperity, national security, and advancements in public health. To address engineering preparation and appeal, technical education programs have emerged that provide hands-on, project-based curricula that focus on the integration of mathematics and science knowledge with engineering activities. Learning Sciences research emphasizes that integration of conceptual knowledge must be made explicit to learners to promote successful transfer of these ideas to novel problem-solving and design contexts. In this study, we analyze the second foundation course in the Project Lead the Way™ sequence, Principles of engineering ™. We found that while a significant portion of the instructors' time was spent on class management tasks, such as collecting worksheets and taking roll (non-instructional time), lecturing and tutoring took up the bulk of the class time. Only a small amount of time in class was spent on non-interactions between the instructor and students. Second, a greater proportion of the total instruction time was devoted to concepts than skills;moreover most concept instruction co-occurred with skills instruction. Lastly, over one third of the instruction linked mathematics skills and concepts to engineering skills and concepts. Explicit connections were made more often than implicit connections, though, occasionally, no connections were made between the mathematics being discussed and the engineering activity that was the focus of the lesson. These analyses show greater presence of concepts, and more frequent explicit conceptual connections between math and engineering than observed in earlier analyses of Introduction to engineering™, the first course in the Project Lead the Way™ program. Thus, our observations of the Principles of engineering™ courses show several ways in which instruction may provide stronger support for learning, engagement and transfer than was ev

关键词： Curricula

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WAVE and CalFit — Towards social interaction in mobile body sensor networks

WAVE and CalFit — Towards social interaction in mobile body...

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International Conference on Wireless Internet

作者： Posu Yan Irving Lin Michael Roy Edmund Seto Curtis Wang Ruzena Bajcsy Electrical Engineering and Computer Sciences University of California Berkeley CA USA School of Public Health University of California Berkeley CA USA

WAVE is an API for Android OS which which allows for easy management of body sensor networks (BSNs) on mobile platforms. It presents a simple framework for health-oriented applications by providing functionality for data collection from sensors and data processing. CalFit is an interactive application built using WAVE that leverages the power of social influence to promote physical activity.

关键词： Body sensor networks Signal processing algorithms Databases Data processing Global Positioning System Mobile computing Statistics Operating systems Wireless sensor networks Biosensors

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Research of the matching method of train engine car bearings based on AHP

Research of the matching method of train engine car bearings...

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2010 International Conference on Mechanic Automation and Control engineering, MACE2010

作者： Wang, Yong-Qiang Zhang, Ming Qing, Zhao-Bo Wang, Xiao-Lin College of Mechanical and Electrical Engineering China Jiliang University Hangzhou China Public Computer Teaching and Research Center Jllin University Changchun China

ISBN: (纸本)9781424477388

Current situation of bearing matching in China is mainly by artificial selected, thus it inevitably exists some errors and can't achieve the optimal matching. This paper proposes a algorithm of locomotive bearings that is based on the analytic hierarchy process view of the current status. There are several major technology mentioned bearing index gived separately weight. Then each technical indicators divides into five levels. Getting a score by the multiplication of each index weights and level score, each index is calculated in this method, finally all of the index score add together, the final score is as a reference for matching bearing. ©2010 IEEE.

关键词： Analytic hierarchy process

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Order-preserving factor discovery from misaligned data

Order-preserving factor discovery from misaligned data

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2010 IEEE Sensor Array and Multichannel Signal Processing Workshop, SAM 2010

作者： Puig, Arnau Tibau Wiesel, Ami Zaas, Aimee Ginsburg, Geoffrey S. Fleury, Gilles Hero III, Alfred O. Dpt. of Electrical Engineering University of Michigan United States E3S - SUPELEC Systems Sciences Signal Processing and Electronic Systems Department Supélec France School of Computer Science and Engineering Hebrew University of Jerusalem Israel Institute for Genome Sciences and Policy Duke University United States Division of Infectious Diseases and International Health Dpt. of Medicine Duke University School of Medicine United States

ISBN: (纸本)9781424489770

We present a factor analysis method that accounts for possible temporal misalignment of the factor loadings across the population of samples. Our main hypothesis is that the data contains a subset of variables with similar but delayed profiles obeying a consistent precedence ordering relationship. Our model is motivated by the difficulty of gene expression analysis across subjects who have common patterns of immune response but show different onset times after a uniform innoculation time of a viral pathogen. The proposed method is based on a linear model with additional degrees of freedom that account for each subject's inherent delays. We present an algorithm to fit this model in a totally unsupervised manner and demonstrate its effectiveness on extracting gene expression factors affecting host response using a flu-virus human challenge study dataset. © 2010 IEEE.

关键词： Gene expression

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Analytical modeling and experimental studies of robotic fish turning

Analytical modeling and experimental studies of robotic fish...

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IEEE International Conference on Robotics and Automation (ICRA)

作者： Xiaobo Tan Michael Carpenter John Thon Freddie Alequin-Ramos Smart Microsystems Laboratory Department of Electrical and Computer Engineering Michigan State University East Lansing MI USA Holt Public Schools Holt MI USA

ISBN: (纸本)9781424450381;9781424450404

Turning is one of the most important maneuvers for biological and robotic fish. In our group's prior work, an analytical framework was proposed for modeling the steady turning of fish, given asymmetric, periodic body/tail movement or deformation. However, the approach was not illustrated with simulation or validated with experiments. The contributions of the current paper are three fold. First, an extension to the modeling framework is made with a more rigorous formulation of the force balance equation. Second, we have worked out two examples explicitly, one with an oscillating, rigid tail, and the other with a flexible tail having a uniform curvature, and compared their turning behaviors through numerical results. Third, for model validation purposes, a robotic fish prototype has been developed, with the tail shaft controlled precisely by a servo motor. For a rigid tail, experimental results have confirmed the model prediction that, for the tested range, the steady-state turning radius and turning period decrease with an increasing bias in the tail motion, and that the turning period drops with an increasing tail beat frequency. We have also found that, with a flexible fin attached to the tail shaft, the robot can achieve faster turning with a smaller radius than the case of a rigid fin, and modeling within the same framework is underway to understand this phenomenon.

关键词： Analytical models Robots Marine animals Turning Tail Biological system modeling Shafts Deformable models Equations Prototypes

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