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International Conference on Advanced Computer Theory and Engineering

作者： Zobok, Maros Tanuska, Pavol Vazan, Pavel Institute of Applied Informatics Automation and Mathematics Slovak University of Technology Trnava Slovakia

ISBN: (纸本)9781424465408

The article provides the general overview and base proposal of solution in the area of controlling the IT resources within the company. It points out some common deficits of integrating systems and running data transfers. Lack of functionality in some large systems is supplemented by using interim database and proposed SQL processing prior to data loads. Interim database is also used for storing the import result status and log functionality. © 2010 IEEE.

关键词： Data transfer

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Convergence stabilization by parameter tuning in robust fixed point transformation based adaptive control of underactuated MIMO systems

Convergence stabilization by parameter tuning in robust fixe...

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IEEE International Joint Conferences on Computational Cybernetics and Technical informatics, ICCC-CONTI 2010

作者： Tar, J.K. Rudas, I.J. Bitó, J.F. Preitl, Stefan Precupt, Radu-Emil Institute of Intelligent Engineering Systems John von Neumann Faculty of Informatics Obuda University Budapest Hungary Department of Automation and Applied Informatics Politehnica University of Timijoara Romania

ISBN: (纸本)9781424474332

The classical approaches in the adaptive control of Classical Mechanical Systems as the "Adaptive Inverse Dynamics Controller (AIDC)" or the "Adaptive Slotine-Li Controller (ASLC)", as well as several implementations of the idea of the "Model Reference Adaptive Control (MRAC)" have the common feature that they are designed by the use of Lyapunov's 2nd ("direct") method that normally applies a quadratic Lyapunov function constructed of the tracking error and further additional terms. Though in the lack of unknown external disturbances this approach normally guarantees global asymptotic stability, it requires the use of complicated, slow, non-optimal tuning process with high computational burden. Furthermore, unknown external perturbations or the presence of not modeled, dynamically coupled subsystems can completely fob this sophisticated tuning. Recently an alternative problem tackling, the application of "Robust Fixed Point Transformations (RFPT)" were recommended for fully driven Classical Mechanical systems. This approach applies strongly saturated, multiplicative nonlinear terms causing a kind of "deformation" of the input of the available imprecise system model. Instead parameter tuning it operates with Cauchy sequences that are convergent only within a local basin of attraction. This technique can well compensate the simultaneous effects of modeling errors and unknown external disturbances. At first time, in this paper, as a completion, a convergence stabilizing tuning process is recommended and applied for underactuated Classical Mechanical systems. The conclusions of the paper are illustrated by simulation results. © 2010 IEEE.

关键词： Model reference adaptive control

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Nonlocal Four-Point Boundary Value Problem for the Singularly Perturbed Semilinear Differential Equations

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Boundary Value Problems 2010年第1期2011卷 1-9页

作者： Vrabel, Robert Institute of Applied Informatics Automation and Mathematics Faculty of Materials Science and Technology Trnava Slovakia

This paper deals with the existence and asymptotic behavior of the solutions to the singularly perturbed second-order nonlinear differential equations. For example, feedback control problems, such as the steady states of the thermostats, where the controllers add or remove heat, depending upon the temperature detected by the sensors in other places, can be interpreted with a second-order ordinary differential equation subject to a nonlocal four-point boundary condition. Singular perturbation problems arise in the heat transfer problems with large Peclet numbers. We show that the solutions of mathematical model, in general, start with fast transient which is the so-called boundary layer phenomenon, and after decay of this transient they remain close to the solution of reduced problem with an arising new fast transient at the end of considered interval. Our analysis relies on the method of lower and upper solutions.

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Basic course in control theory

Basic course in control theory

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2010 9th International Conference on Information Technology Based Higher Education and Training, ITHET 2010

作者： Hetthéssy, Jeno Barta, András Bars, Ruth Keviczky, László Dept. of Automation and Applied Informatics Budapest University of Technology and Economics HAS-BME Control Research Group Budapest Hungary MTA SZTAKI Computer and Automation Research Institute Hungarian Academy of Sciences Budapest Hungary

ISBN: (纸本)9781424457922

Course material of basic control theory has been overviewed and updated recently at the Faculty of Electrical Engineering and informatics, BME. The paper describes shortly the contents and the teaching methods of the course. In the theoretical material the concept of the Youla parametrization has been introduced which gives a new insight into controller design. MATLAB exercises support understanding and interactively applying the theoretical knowledge. New lecture notes were written both for the theoretical material and for the MATLAB laboratory exercises. The course web-site provides the actual information and gives also additional learning materials. ©2010 IEEE.

关键词： Websites

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Damped one-mode vibration model state and parameter estimation via pre-filtered moving horizon observer

Damped one-mode vibration model state and parameter estimati...

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5th IFAC Symposium on Mechatronic Systems, MECHATRONICS 2010

作者： Polóni, Tomáš Rohal-Ilkiv, Boris Johansen, Tor Arne Institute of Automation Measurement and Applied Informatics Faculty of Mechanical Engineering Slovak University of Technology Bratislava Slovakia Department of Engineering Cybernetics Norwegian University of Science and Technology Trondheim Norway

ISBN: (纸本)9783902661760

The estimation of parameters and states is one of the core data-processing algorithms used for the monitoring and control of continuum or structured mechatronical systems (e.g., flexible robotic arms and cantilevers). The measurements taken from the sensors combined with an appropriate model can filter the states and extract information about vibration dynamics parameters such as damping and spring constants. This paper presents a method based on the application of a Moving Horizon Observer (MHO) for state and parameter estimation of a lightly-damped vibrating system. A numerical experiment on a single-degree-of-freedom (SDOF) system is performed to demonstrate the method on noisy measurements and to compare the MHO with the benchmark Extended Kalman Filter (EKF). Test scenarios show that the MHO appears to be more robust with respect to modeling errors. © 2010 IFAC.

关键词： Extended Kalman filters

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Determination of the residual power of the fissionable fuel by modeling

Determination of the residual power of the fissionable fuel ...

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2nd International Conference on Computer Research and Development, ICCRD 2010

作者： Schreiber, Peter Barton, Stanislav Tanuska, Pavol Vazan, Pavel Institute of Applied Informatics Automation and Mathematics Slovak University of Technology in Trnava SUT Trnava El Salvador Department of Technology and Automobile Transport Mendel University in Brno MUB Brno Czech Republic

ISBN: (纸本)9780769540436

The today's determination of residual power of nuclear fuel in containers bases on differential equations, which describe the creation and the destruction of nuclides in the fuel. The Nuclear Regulatory of Slovak Republic requires the verification of present methodology alternatively. The new methodology and achieved results in determination of residual power of spent nuclear fuel by temperature measuring of the container are described in this article. The solution bases on modeling and simulation: The container without fuel was heated by electrical resistant spirals with known electrical power, which simulates the residual power of the transported nuclear fuel. The temperature of defined points of the container's surface and in environment was measured. The measured data were used for the design of the thermic mathematical model of the container. This model can be backwards used for the determination of the power of transported fuel in real container's operation. © 2010 IEEE.

关键词： Containers

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A case study on benchmarking for biomedical engineering study programs

A case study on benchmarking for biomedical engineering stud...

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International Congress on Engineering Education

作者： Elsarnagawy, Tarek Alhelih, Eyad Farrag, Manal King Saud University Community College Applied Medical Department Saudi Arabia Prince Sultan University for Women CIS KSA Saudi Arabia Faculty of Informatics and Automation Institute for Theoretical and Technical Informatics Computer Architecture Technical University Ilmenau Germany

ISBN: (纸本)9781424473113

This study presents the experience of the Department of applied Medical Sciences (AMS) - Riyadh Community College - King Saud University in its way to achieve the international accreditation standards to ensure quality. The study is based on a three years experience (2008-2010). The following will be clarified, the list of criteria adopted by AMS to ensure quality and the procedures adopted by AMS to apply accreditation standards to ensure quality of *** study followed the iterative descriptive approach in analyzing the topics. The results show the procedures how the standards were applied to ensure the quality of outputs by meeting the requirements in all aspects, national and international, especially of the internationally recognized organization Council on Occupational Education COE, by which the AMS was then accredited in June 2010. A four year development strategic plan is set for the department to ensure consistent quality and improvement standards. By reviewing the literature of former experiences of Arab and international bodies for accreditation and quality assurance, the study concluded a list of accreditation criteria and indicators of quality assurance, as well as indicators to ensure the quality of the university environment. The achieved number of accreditation and quality assurance standards are presented from both national and international organizations and were found to be: 25 accreditation standards leading to 245 indicators, and 41 indicators for QA, and 29 indicators for the QA of the university *** study recommended the need to activate the academic accreditation and assessment of academic programs periodically internally and externally. Furthermore, similar departments of applied medical sciences should adopt the presented accreditation and quality assurance principles. In addition those departments are asked to put a strategic plan that meets their needs and goals. © 2010 IEEE.

关键词： Biomedical engineering

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The integration of processes within IT resources control

The integration of processes within IT resources control

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International Conference on Advanced Computer Theory and Engineering, ICACTE

作者： Maros Zobok Pavol Tanuska Pavel Vazan Institute of Applied Informatics Automation and Mathematics Slovak University of Technology Trnava Slovakia

关键词： Databases Companies Communication cables

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The proposal of ontology as a part of University data warehouse

The proposal of ontology as a part of University data wareho...

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2010 2nd International Conference on Education Technology and Computer, ICETC 2010

作者： Tanuska, Pavol Vlkovic, Ondrej Vorstermans, Annemie Verschelde, Werner Institute of Applied Informatics Automation and Mathematics Slovak University of Technology Paulinska 16 SK-91701 Trnava Slovakia Department of Industneel Ingenieur KaHo Sint Lieven G. Desmetstraat 1 B-9000 GENT Belgium

ISBN: (纸本)9781424463688

Main goal of this paper is the proposal of modified university ontology as a part of University data warehouse. The existing ontology does not include all the required concepts and information that are necessary in the evaluation process. In a first step, university ontology is needed to define the base classes that become entities and their associations. After design phase and verification of class diagrams that present our proposed ontology, the mapping into the Data Warehouse multidimensional Star Schema is presented. The most valuable contribution (after implementation phase) will be the possibility to online evaluate the study achievements of students either individually or globally for a departments and faculties according to various parameters, which will undoubtedly increase the quality of pedagogical process. And it should decrease student failure rates. © 2010 IEEE.

关键词： Ontology

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Damped One-Mode Vibration Model State and Parameter Estimation via Pre-Filtered Moving Horizon Observer

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IFAC Proceedings Volumes 2010年第18期43卷 24-31页

作者： Tomáŝ Polóni Boris Rohal'-Ilkiv Tor Arne Johansen Institute of Automation Measurement and Applied Informatics Faculty of Mechanical Engineering Slovak University of Technology Bratislava Slovakia Department of Engineering Cybernetics Norwegian University of Science and Technology Trondheim Norway

关键词： State estimation Damping and spring constant estimation Moving horizon observer Extended Kalman Filter

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