Xem 1-20 trên 79 kết quả Control methodologies
  • inaccuracies lead to the deviation of operational space trajectory provided by the kinematic mapping. One method to deal with this issue can be found in an adaptive control. Xu and Gu proposed an adaptive control scheme for space robots in both joint space and operational space [Xu et al., 1992, Gu & Xu, 1993]. However, the adaptive control proposed in [Xu et al., 1992] requires perfect attitude control and the adaptive control in [Gu & Xu, 1993] is developed based on an under-actuated system on the assumption that the acceleration of the base-satellite is measurable.

    pdf344p lulanphuong 23-03-2012 52 24   Download

  • The current control problems present natural trend of increasing its complexity due to performance criteria that is becoming more sophisticated. The necessity of practicers and engineers in dealing with complex dynamic systems has motivated the design of controllers, whose structures are based on multiobjective constraints, knowledge from expert, uncertainties, nonlinearities, parameters that vary with time, time delay conditions, multivariable systems, and others.

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  • The current control problems present natural trend of increasing its complexity due to performance criteria that is becoming more sophisticated. The necessity of practicers and engineers in dealing with complex dynamic systems has motivated the design of controllers, whose structures are based on multiobjective constraints, knowledge from expert, uncertainties, nonlinearities, parameters that vary with time, time delay conditions, multivariable systems, and others.

    pdf0p aries23 29-09-2012 35 9   Download

  • INTERNAL CONTROL BASED ON THE COSO REPORT Objective  To use COSO, the Corporate Governance model, and COBIT, the Information Technology Governance framework, to achieve compliance with the SARBANES-OXLEY law 1 .Scope  New paradigms.  Methodology concepts of COSO.  MEYCOR COSO AG basics, a tool for implementing internal control based on the COSO report.

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  • This Handbook provides a concise overview of the latest technologies for managing industrial air pollution in petrochemical, oil and gas, and allied industries. Detailed material on equipment selection, sizing, and troubleshooting operations is provided along with practical design methodology. Unique to this volume are discussions and information on energy-efficient technologies and approaches to implementing environmental cost accounting measures.

    pdf582p transang5 23-11-2012 51 17   Download

  • Fuzzy control is a practical alternative for a variety of challenging control applications since it provides a convenient method for constructing nonlinear controllers via the use of heuristic information. Such heuristic information may come from an operator who has acted as a “human-in-the-loop” controller for a process. In the fuzzy control design methodology, we ask this operator to write down a set of rules on how to control the process, then we incorporate these into a fuzzy controller that emulates the decision-making process of the human.

    pdf522p nien55 08-03-2013 57 16   Download

  • A systematic control design methodology is introduced for multi-input/multi-output stable open loop plants with multiple saturations. This new methodology is a substantial improvement over previous heuristic single-input/single-output approaches. The idea is to introduce a supervisor loop so that when the references and/or disturbances are sufficiently small, the control system operates linearly as designed.

    pdf39p hoangnhat2112 24-02-2013 27 6   Download

  • This book reports the latest development and trends in the low Re number aerodynamics, transition from laminar to turbulence, unsteady low Reynolds number flows, experimental studies, numerical transition modelling, control of low Re number flows, and MAV wing aerodynamics. This book focuses particularly on: (1) a review and brief information study on low Reynolds number flows and transition as an introduction to low Re number aerodynamics (Chapter 1), (2) transition modelling (Chapters 2-4), flow control (Chapters 5-7).

    pdf172p greengrass304 18-09-2012 25 5   Download

  • Presents a new methodology for helping members of a group to arrive at carefully reasoned value judgments or decisions. The new procedure, called "qualitative controlled feedback," presents each group member with a common question, and each member is asked independently for both an answer to the question, and for reasons which he feels justify his answer. An intermediary collects all stated reason......

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  • Initially, the internet was an open medium with certain characteristics that made it hard to control. According to Western journalists and politicians, the efforts of the Chinese government to control the internet are doomed to fail. This study attempts to counter this view and discusses to what degree the Chinese government can control the internet in China and, more than that, to what degree the internet can be used as a means for control. Methodologically, the four modalities of control (the law, architecture, social norms and the market), set forth by Lessig will be used.

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  • Introduction Acknowledgments Lesson 1. So You're Going to Manage a Project? The Elements of a Project Project Planning Implementation Control Possible Project Players Lesson 2. What Makes a Good Project Manager? A Doer, not a Bystander Many Hats All the Time Principles To Steer You Seven Ways to Succeed as a Project Manager Seven Ways to Fail as a Project Manager Lesson 3.

    pdf135p augi19 10-04-2012 161 93   Download

  • Since the recognition of the importance of antenatal as well as postnatal depression, a number of studies have looked at the prevalence of depression among pregnant women in the developed and developing world. Prevalence rates vary because of a variety of methodological factors.

    pdf54p pt_1669 26-03-2012 150 69   Download

  • Evolution of global technologies has prompted increasing complexity of applications developed in both, the industry and the scientific research fields. These complexities are generally attributed to nonlinearities, poorly defined dynamics and absence of apriori information about the systems. Imprecision, uncertainties and vagueness in information about the system are also playing vital roles in enhancing the complexity of application.

    pdf518p wqwqwqwqwq 06-07-2012 101 42   Download

  • This book describes high-speed precision motion control technologies which are developed and applied to hard disk drives (HDDs). The first feature of this book is that all the editors and the authors are engineers and professors who are directly engaged in the study and development of HDD servo control. Each author describes the control technologies that he developed, and most of these technologies have already been successfully applied to mass production of HDDs.

    pdf315p nguyenthai_thinh 16-03-2013 46 19   Download

  • This book presents and develops major numerical methods currently used for solving problems arising in quantitative finance. Our presentation splits into two parts. Part I is methodological, and offers a comprehensive toolkit on numerical methods and algorithms. This includes Monte Carlo simulation, numerical schemes for partial differential equations, stochastic optimization in discrete time, copula functions, transform-based methods and quadrature techniques. Part II is practical, and features a number of self-contained cases.

    pdf618p thuymonguyen88 07-05-2013 37 19   Download

  • This book focuses on the very important and diverse field of vibration analysis and control.

    pdf0p ktcn_1 10-07-2012 51 16   Download

  • In this book, a set of relevant, updated and selected papers in the field of automation and robotics are presented. These papers describe projects where topics of artificial intelligence, modeling and simulation process, target tracking algorithms, kinematic constraints of the closed loops, non-linear control, are used in advanced and recent research. Also, the lecturer can find some of the new methodologies applied to solve complex problems in the field of control and robotic research fields....

    pdf396p bi_bi1 06-07-2012 46 13   Download

  • The umbrella term Social Sciences and Humanities refers to a plurality of fields outside the Natural or Physical Sciences. Disciplines as different as anthropology, archeology, architecture, art, cultural studies, economics, education, geography and environmental studies, history, law, languages and linguistics, political science, philosophy, psychology, sociology or translation studies, all share the concern for human relations and socio-cultural practices.

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  • Among performance audits, the number and complexity of the planning issues can be even greater. The methodology for assessing the operating efficiency of an entity will be quite different from that for attempting to measure the effectiveness of a programme in achieving its stated objectives. These two kinds of audits involve collecting and analysing different kinds of data from different sources.

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  • TRAJECTORY CONTROL OF A VEHICLE WITH MULTIPLE TRAILERS This chapter contains an in-depth application study of the fuzzy control methodologies introduced in this book. The system under study is a vehicle with multiple trailers. The control objective is to back the vehicle into a straight-line configuration without forward motion. This is often referred as the problem of backing up control of a truck-trailer.

    pdf20p doroxon 18-08-2010 43 8   Download

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