We propose a modification of the existing algorithm for computing the one-step robust sets for the discrete-time piecewise affine (DTPWA) systems subject to additive polytope-bounded uncertainties. In the old algorith...
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This paper presents a novel approach to solve the constrained unit commitment problem using the Selective Self-Adaptive Ant Colony Optimization (SSACO) for improving search performance by automatically adapting ant po...
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ISBN:
(纸本)9789810594237
This paper presents a novel approach to solve the constrained unit commitment problem using the Selective Self-Adaptive Ant Colony Optimization (SSACO) for improving search performance by automatically adapting ant populations and their transition probability parameters, which cooperates with the Candidate Path Management Module (CPMM) and the Effective Repairing Heuristic Module (ERHM) in reducing search space and recovering a feasible optimality region so that a high quality solution can be acquired in a very early iterative. A new concept of the Relativity Pheromone Updating (RPU) is also introduced to provide a reasonable evaluation of the pheromone trail intensity among the agents. The proposed SSACO method not only enhances the convergence of search process, but also provides a suitable number of the population sharing which conducts a good guidance for trading-off between the importance of the visibility and the pheromone trail intensity. The proposed method has been performed on a test system up to 100 generating units with a scheduling time horizon of 24 hours. The numerical results show the most economical saving in the total operating cost when compared to the previous literature results. Moreover, the proposed SSACO topology can remarkably speed up the computational time of ant colony optimization, which is favorable for a large-scale UC problem implementation.
Grid is a highly distributed heterogeneous environment which interoperates towards completing a common goal. As such, grids performance is highly dependant on the speed of data transfer between systems of which grid c...
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Grid is a highly distributed heterogeneous environment which interoperates towards completing a common goal. As such, grids performance is highly dependant on the speed of data transfer between systems of which grid consists. Most commonly used and a "de facto" standard for data transfer on grid systems is GridFTP [7]. While working on CRO-GRID Infrastructure [3] project, we faced problems with small data transfer speeds when transferring small files. In this paper we present a program we have developed which uses GridFTP and speeds up data transfer of large number of small or medium sized files. We also present empirical results of the performance measurements achieved while using the implemented system.
Mining brain tumors and tracking their growth trends in the course of magnetic resonance imaging is an important task that assists medical professionals to describe the appropriate treatment. Nevertheless, applying co...
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In this article there are described applications of embedded systems for diagnostic and maintenance planning in healthcare applications. During the recent years, there was a rapid growth in the development of maintena...
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Scientific visualization evolved up to the stage where collaborative work in virtual coexistence of various experts has become unavoidable in identifying and solving specific visualization tasks. These problems encour...
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Scientific visualization evolved up to the stage where collaborative work in virtual coexistence of various experts has become unavoidable in identifying and solving specific visualization tasks. These problems encouraged us to research and define key aspects of visualization service which will enable collaborative work over the Internet. In this paper we define architecture of the whole system and unified interface for all requirements in such environment. Unified requests are sent to visualization processing unit to execute required visualization routine. Collaborative work on the volumetric medical data is a specially demanding task, so we present development of VMI (Visualization of Medical data over the Internet) system, where segmentation for visualization is based on joint histogram.
We propose a modification of the existing algorithm for computing the one-step robust sets for the discrete-time piecewise affine (DTPWA) systems subject to additive polytope-bounded uncertainties. In the old algorith...
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We propose a modification of the existing algorithm for computing the one-step robust sets for the discrete-time piecewise affine (DTPWA) systems subject to additive polytope-bounded uncertainties. In the old algorithm the Minkowski set difference between a union of polytopes (the so-called P-collection) and a polytope needs to be computed, which in turn calls twice for the computation of the set difference between a polytope and a P-collection. These set operations become computationally very demanding with the increasing number of polytopes in the P-collection and thus limit the practical applicability of the algorithm. In this paper we propose a more efficient procedure that avoids explicit evaluation of the Minkowski set difference. Our algorithm, on average, significantly reduces the complexity of the computation. We illustrate this on several examples of DTPWA systems for which the maximal robust positively invariant set is computed.
In this paper, a design of the 3-phase, 6-stator-pole and 4-rotor-pole, 15 kW switched reluctance motor for the propulsion system of the electric vehicle is presented. Its performance such as the torque per volume and...
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ISBN:
(纸本)8986510081
In this paper, a design of the 3-phase, 6-stator-pole and 4-rotor-pole, 15 kW switched reluctance motor for the propulsion system of the electric vehicle is presented. Its performance such as the torque per volume and its efficiency are compared to the machine which is designed based on the conventional design guideline.
In this paper a method to estimate the initial rotor position of the switched reluctance motor (SRM) at the stand still condition is proposed. The proposed method can be implemented by the simple microcontroller based...
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ISBN:
(纸本)8986510081
In this paper a method to estimate the initial rotor position of the switched reluctance motor (SRM) at the stand still condition is proposed. The proposed method can be implemented by the simple microcontroller based system, and it is not necessary to know the magnetization curves. The impulse gate drive signal is applied and the winding current is detected and its approximate value is used for calculating the rotor position. The compensation method to reduce the estimation error thorough one cycle is also mentioned. The proposed method is implemented with the 6-stator-pole and 4-rotor-pole, 1.5 kW 3-phase switched reluctance motor.
The advancement of traffic makes world more and more internationalized and increases frequency of communication between people who come from different cultures. Differences in their conversation go beyond the language...
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ISBN:
(纸本)9531841101
The advancement of traffic makes world more and more internationalized and increases frequency of communication between people who come from different cultures. Differences in their conversation go beyond the languages they speak to the non-verbal behaviors they express while talking. To improve the abilities of the embodied conversational agents (ECAs) while interacting with human users we are working on the ECA based application, a tour guide of city Dubrovnik that servers visitors in Japanese, Croatian and general western cultures speaking in English. This paper presents the overall architecture and explains possible extension with another culture. It describes issues we met while making agent talk in Croatian and proposed solutions.
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