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IEEE International Conference on networking, Sensing and control

作者： Michiel Houwing Rudy R. Negenborn Marija D. Ilic Bart De Schutter Electic Energy Systems Group of Carnegie Mellon University Pittsburgh PA USA Faculty of Technology Policy and Management Delft University of Technnology Delft Netherlands Delft Center of Systems and Control Delft University of Technnology Delft Netherlands Departments of Electrical and Computer Engineering and Engineering and Public Policy Carnegie Mellon University Pittsburgh PA USA Control of Future Electricity Network Operations Faculty of Technology Delft University of Technnology Delft Netherlands Marine and Transport Technology Department Delft University of Technnology Netherlands

With the increasing application of distributed energy resources and information technologies in the electricity infrastructure, innovative possibilities for incorporating the demand side more actively in power system operation are enabled. At the residential level energy costs could be reduced with intelligent price-based control concepts (demand response). A promising, controllable, residential distributed generation technology is micro cogeneration (micro-CHP). Micro-CHP is an energy efficient technology that simultaneously provides heat and electricity to households during operation. This paper presents a detailed model of a household using a proton exchange membrane fuel cell (PEMFC) micro-CHP system in conjunction with heat storage options to fulfil its heat and part of its electricity demand. Furthermore, a decentralised controller based on a model predictive control (MPC) strategy is proposed. MPC can take benefit of future knowledge on prizes and energy demands and can therefore lead to better system performance. In simulations the performance of the MPC-controlled PEMFC system is illustrated under different conditions regarding energy pricing, domestic energy demand, and system configuration.

关键词： Predictive models Predictive control Fuel cells Cogeneration Resistance heating Power system modeling Distributed control Energy resources Information technology Costs

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Tobacco Farming and Public Health: Attitudes of the General Public and Farmers

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Journal of Social Issues 2010年第1期53卷 113-128页

作者： David G. Altman Douglas W. Levine George Howard Hal Hamilton The Bowman Gray School of Medicine Wake Forest University Winston-Salem North Carolina DAVID G. ALTMAN Ph.D. is an Associate Professor in the Department of Public Health Sciences at the Bowman Gray School of Medicine Wake Forest University. Before coming to Bowman Gray School of Medicine in 1994 Dr. Altman spent 10 years at the Stanford Center for Research in Desease Prevention. Dr. Altman has published in the areas of community health promotion and disease prevention most recently on issues related to tobacco control. His current research examines: a) relationships between community participation psychological empowerment and health behavior b) the relationship between tobacco access and tobacco use among youth c) the extent to which tobacco farmers can be encouraged to engage in crop diversification d) strategies for increasing physical activity among the elderly and e) strategies for public health intervention. DOUGLAS W. LEVINE is an Assistant Professor in the Department of Public Health Sciences Section on Social Sciences and Health Policy at the Bowman Gray School of Medicine Wake Forest University. His areas of expertise are related to statistics and quantitative methods. He is also conducting research on the subsistence activities of the Alaskan native residents in the Bristol Bay Region of Alaska and with David Altman a four-year study with tobacco farmers in North Carolina. GEORGE HOWARD Ph.D. is a Professor of Biostatistics and Epidemiology in the Department of Public Health Sciences of Wake Forest University. He received his Dr.P.H. from the University of North Carolina at Chapel Hill in 1987 and has published extensively on cardiovascular and cerebrovascular epidemiology risk factors including the effects of active and passive cigarette smoking on atherosclerosis. The Center for Sustainable Systems Berea Kentucky HAL HAMILTON is the executive director of the Center for Sustainable Systems and co-chair of the Campaign for Sustainable Agriculture a network of 570 organizations wor

The tobacco industry remains a formidable influence in thwarting tobacco control efforts, in part because industry leaders have raised policymaker and public concern about how tobacco control might negatively impact tobacco farmers. In this study, we interviewed a random, stratified sample of 528 tobacco farmers in the Southeast and 991 U.S. residents about issues related to tobacco farmers. We found that a majority of the U.S. public expressed the belief that U.S. taxpayers subsidized tobacco farmers. This belief, combined with the strong opposition to tobacco farmer subsidies (15 percent thought there should be subsidies), likely play a role in public attitudes toward tobacco farmers. At the same time, however, we found reasonably strong public support for efforts to help tobacco farmers transition to new enterprises, although the public underestimates tobacco farmer interest in diversification. For example, two of three Americans believe that the government should help farmers make a living other than growing tobacco and over half thought that taxpayers should help pay for such programs. These data illustrate potential common ground for elected officials to consider as they attempt to concomitantly address the needs of farmers and the interests of the public. Ultimately, if the interests of tobacco farmers can be made clearly to the general public, and vice versa, pro- health and pro-farmer policies might well become a reality.

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Application of robust fixed point transformations for technological operation of robots

Lecture Notes in Control and Information Sciences

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Lecture Notes in control and Information Sciences 2009年 396卷 93-101页

作者： Tar, József K. Rudas, Imre J. Kozlwski, Krzysztof R. MacHado, José A. Tenreiro Institute of Intelligent Engineering Systems John von Neumann Faculty of Informatics Budapest Tech Bécsi út 96/B H-1034 Budapest Hungary Chair of Control and Systems Engineering Poznań University of Technology ul. Piotrowo 3a Poznań 60-965 Poland Department of Electrotechnical Engineering Institute of Engineering of Porto Rua Dr. Antonio Bernardino de Almeida Porto 4200-072 Portugal

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Fixed point transformations in the adaptive control of fractional-order MIMO systems

Lecture Notes in Control and Information Sciences

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Lecture Notes in control and Information Sciences 2009年 396卷 103-112页

作者： Tar, József K. Rudas, Imre J. Nádai, László Kozlowski, Krzysztof R. MacHado, José A. Tenreiro Institute of Intelligent Engineering Systems John von Neumann Faculty of Informatics Budapest Tech Bécsi út 96/B Budapest H-1034 Hungary Computer and Automation Research Institute Hungarian Academy of Sciences Kende u. 13-17 Budapest H-1111 Hungary Chair of Control and Systems Engineering Poznań University of Technology ul. Piotrowo 3a Poznań 60-965 Poland Department of Electrotechnical Engineering Institute of Engineering of Porto Rua Dr. Antonio Bernardino de Almeida Porto 4200-072 Portugal

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A controller of the pendubot using quasi-velocities

A controller of the pendubot using quasi-velocities

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2008 Mediterranean Conference on control Automation, vol.1

作者： Przemyslaw Herman Chair of Control and Systems Engineering Poznan University of Technology Poznan Poland

An energy based control problem of the pendubot in terms of normalized quasi-velocities (NQVs) is considered in this paper. Introducing the NQVs vector together with generalized coordinates leads to first-order equations of motion with the identity mass matrix of the system. The obtained differential equations are next used to design decoupled controller for stabilizing the system around one of its unstable equilibrium position. The controller was compared analytically and in simulation to the analogous classical controller.

关键词： Automation Conferences

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The Health Care Bill

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ARTHROSCOPY-THE JOURNAL OF ARTHROSCOPIC AND RELATED SURGERY 2010年第2期26卷 147-148页

作者： McIntyre, Louis F. On Christmas Eve the Senate approved health care legislation HR 3590 by a strict party-line vote of 60 to 39 just enough votes to prevent further debate or filibuster. The bill now heads for reconciliation with the House version with the President hopeful that he will have something to sign before the State of the Union message in January. The Editors were constrained in their comments on health care by their duty to remain true to their mission of promoting the dissemination of the scientific literature on orthopaedic arthroscopic surgery. As we have recently witnessed with the climate science literature scandal scientific journals and politics should not be mixed and I applaud the Editors for their restraint. As chair of the AANA Health Policy and Practice Committee and as our representative to the Coding Coverage and Reimbursement Committee I have an obligation to share my thoughts on this bill with our membership. What follows is my opinion regarding the bill and its content. Both the AAOS and AANA have joined a coalition of 13 other specialties in opposition to the bill through Physicians United for Patients (***). That our parent and specialty organizations have come out publicly against this bill speaks to its many deficiencies. They include: ? The creation of an Independent Payment Advisory Board that will have the power to determine coverage decisions. The Board will be made of unelected appointees that must submit coverage policy to the President and Congress. This will politicize treatment decisions best left to physician and patients. It may be hard fighting with insurance companies imagine having to go to Congress to affect treatment decisions! ? New Comparative Effectiveness Research Programs (CER) similar to the NICE (National Institute for Health and Clinical Excellence) board in the United Kingdom that rations care and leads to as many as 15 000 premature cancer deaths in that country per year according to the National Cancer Intelligence Network. ? The bill depends on the recommenda

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Observation of Link Deformations of a Robotic Manipulator with Fiber Bragg Grating Sensors

Observation of Link Deformations of a Robotic Manipulator wi...

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2008 IEEE/ASME International Conference on Advanced Intelligent Mechatronics, Pages 1-476

作者： Rene Franke Frank Hoffmann Torsten Bertram Chair for Control Systems Engineering RST Faculty of Electrical Engineering and Information Technology Technische Universitat Dortmund D-44221 Dortmund Germany

ISBN: (纸本)9781424424948

More advanced robotic applications require high accuracy positioning of the robot manipulator. This paper introduces a novel approach to measure the elastic deformations of robot links in order to improve its pose accuracy. The paper develops a model of the fiber Bragg sensors that locally measure strain. In conjunction with an finite model of the link geometry this information enables the prediction of the arm deformation. The approach opens an avenue for more advanced position control, which considers the elastic link deformations. Both models provide the basis for a systematic analysis and optimization of the spectrometer, signal processing and sensor configuration. An evolutionary algorithm optimizes the sensor locations in order to minimize the predicted deformation error. The proposed scheme is verified experimentally on an industrial manipulator.

关键词： fiber bragg gratings position accuracy optimization industrial manipulator

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Scheduling on networks of Workstations with Task Runtime Restrictions

Scheduling on Networks of Workstations with Task Runtime Res...

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International Conference on networking (ICN)

作者： Marcin Bazyluk Leszek Koszalka Keith J. Burnham Chair of Systems and Computer Networks Wroclaw University of Technology Wroclaw Poland Control Theory and Applications Centre Coventry University Coventry UK

In recent time we spot a tendency to use the computing capacity of workstation clusters instead of investing in single machines with tremendous calculation power. Applying this idea we are able to execute multiple jobs paralelly. However, it still remains unclear how to schedule given jobs among available machines most effectively. Therefore this paper is an approach to optimization of mentioned scheduling. The problem faced here is known in the literature as parallel machine earliness-tardiness scheduling (PMSP_E/T). The optimum criterion is finding the minimal sum of the weighted earliness and tardiness penalties. Due to NP-hardness of specified problem and thus difficulty in locating the optimum we propose two heuristic algorithms to find a satisfying solution: genetic with MCUOX crossover operator and tabu search. We have conducted a research to compare the effectiveness of both approaches and display their dependence on the size of examined instances. Results proove genetic approach superiority over tabu search for larger instances.

关键词： Workstations Runtime Job shop scheduling Single machine scheduling Equations Processor scheduling Parallel machines Genetics Computer networks control theory

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Simple efficient techniques for creating effective 3D impressions from 2D original images

Simple efficient techniques for creating effective 3D impres...

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Signal Processing Algorithms, Architectures, Arrangements and Applications (SPA)

作者： Julian Balcerek Adam Dąbrowski Adam Konieczka Department of Computing Science and Management Chair of Control and System Engineering Division of Signal Processing and Electronic Systems Poznan University of Technology Poznan Poland

In this paper simple techniques based on nonlinear geometric transformations are presented for creating an effective 3D impression (stereovision or illusion of depth) from a single 2D original. Our aim is to propose semi-automatic ways to transform 2D images into their suggestive but plausible 3D anaglyph versions. Three conversion methods based on a binary depth map are proposed and the influence of various RGB component shifts on the 3D impression quality is studied.

关键词： Image color analysis Three dimensional displays Materials Cameras Image segmentation Convergence

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Trajectory Tracking of Underactuated Skid-Steering Robot

Trajectory Tracking of Underactuated Skid-Steering Robot

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2008 American control Conference, Pages 3088-3529

作者： Dariusz Pazderski Krzysztof Kozlowski Faculty of Computer Science and Management Chair of Control and Systems Engineering Poznan University of Technology ul. Piotrowo 3a 60-965 Poznan Poland

ISBN: (纸本)9781424420780

This paper considers problem of approximation of admissible trajectory for skid-steering mobile robot at kinematic level. Nonholonomic constraints at kinematic and dynamic level are taken into account. The trajectory tracking control problem is solved using practical stabilizer using tunable oscillator with novel method of tuning. The stability result is proved using Lyapunov analysis and takes into account uncertainty of kinematics. In order to ensure stable motion of the robot the scaling method is used. Theoretical considerations are illustrated by simulation results.

关键词： Trajectory Kinematics Mobile robots Vehicle dynamics Vehicles Oscillators Wheels Acceleration Angular velocity control Tuning

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