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Aproximadamente 34 registro(s) hasta el momento: (journal)

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An Introduction to Feedforward Control of Electric Drives
Malek, Michal - Makys, Pavol - Stulrajter, Marek

Formato:	,
Enlaces:	The field of electric drives provides a broad spectrum of applications with different power demands, utilized motor types or different environment requirements. Lot of applications are characterized by very high demands on accuracy and dynamic properties and have attribute of…
Fecha:	2010-09-30
Recurso:	Advances in Electrical and Electronic Engineering

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Design of Fuzzy Based Virtual Actuator for a Class of Nonlinear Systems
Filasova, Anna; Technical University of Kosice - Serbak, Vladimir; Technical University of Kosice

Formato:	,
Enlaces:	The paper presents new conditions suitable in design of a virtual actuator for a class of continuous-time nonlinear systems represented by Takagi-Sugeno models, and measurable premise variables. Simulation results illustrate the design procedure and demonstrate the basic performances of the…
Fecha:	2012-06-30
Recurso:	Advances in Electrical and Electronic Engineering

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Fabrication and Properties of Er-Doped Nanocrystalline Phase-Seperated Optical Fibers
Dhar, Anirban; Institute of Photonics & Electronics, ASCR v.v.i, - Kasik, Ivan; Institute of Photonics & Electronics, ASCR v.v.i, - Podrazky, Ondrej; Institute of Photonics & Electronics, ASCR v.v.i, - Matejec, Vlastimil; Institute of Photonics & Electronics, ASCR v.v.i,

Formato:	,
Enlaces:	The fabrication of Er-doped ZrO2-based nanocrystalline phase-separated optical fiber preforms using the MCVD and solution doping techniques is presented and discussed in details in the paper. Preforms with nearly transparent cores containing Er-doped nanocrystals with dimensions mainly within 20-80 nm…
Fecha:	2013-03-30
Recurso:	Advances in Electrical and Electronic Engineering

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Backward Multiscattering and Transport of Photons in Biological Tissue: Experiment and Simulation
Abubaker, Hamed Mohamed; Brno University of Technology - Tomanek, Pavel; Brno University of Technology

Formato:	,
Enlaces:	Optical polarimetry is a mighty tool for study of transparent and translucent inorganic and organic materials. Growing interest in better health and also the quality of the food pointed the investigation of physical properties of biological turbid tissues. Due to…
Fecha:	2012-06-30
Recurso:	Advances in Electrical and Electronic Engineering

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AFM Study of Structure Influence on Butterfly Wings Coloration
Dallaeva, Dinara Sultanovna; Brno University of Technology - Tomanek, Pavel; Brno University of Technology

Formato:	,
Enlaces:	This study describes the structural coloration of the butterfly Vanessa Atalanta wings and shows how the atomic force microscopy (AFM) can be applied to the study of wings morphology and wings surface behavior under the temperature. The role of the…
Fecha:	2012-06-30
Recurso:	Advances in Electrical and Electronic Engineering

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Ultrasonic Transducer Peak-to-Peak Optical Measurement
Skarvada, Pavel - Tofel, Pavel - Tomanek, Pavel

Formato:	,
Enlaces:	Possible optical setups for measurement of the peak-to-peak value of an ultrasonic transducer are described in this work. The Michelson interferometer with the calibrated nanopositioner in reference path and laser Doppler vibrometer were used for the basic measurement of vibration…
Fecha:	2012-06-30
Recurso:	Advances in Electrical and Electronic Engineering

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Dispersion Compensating Photonic Crystal Fiber with Enhanced Properties Achieved by Modified Core Geometry
Kraus, Stanislav; Department of Telecommunications Engineering Faculty of Electrical Engineering Czech Technical University in Prague - Lucki, Michal; Department of Telecommunications Engineering Faculty of Electrical Engineering Czech Technical University in Prague

Formato:	,
Enlaces:	A novel dispersion compensating fiber based on photonic crystal fiber has been designed and studied in terms of optimal dispersion and operating bandwidth. The investigation of dispersion characteristics with respect to change in hole diameter and pitch has been provided.…
Fecha:	2012-06-30
Recurso:	Advances in Electrical and Electronic Engineering

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Attacks to Cryptography Protocols of Wireless Industrial Communication Systems
Ondrasina, Tomas - Franekova, Maria

Formato:	,
Enlaces:	The paper deals with problems of safety and security principles within wireless industrial communication systems. First safety requirements to wireless industrial communication system, summarisation of attack methods and the available measures for risks elimination are described with orientation to safety…
Fecha:	2010-09-30
Recurso:	Advances in Electrical and Electronic Engineering

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Power System for Intelligent House
Jahelka, Michal

Formato:	,
Enlaces:	Power supply of intelligent houses or house phones is possible to do with standard transformer with voltage stabilizer or with intelligent power supply. Standard solution can has as a result of failure fuse blown or fire occurrence. Intelligent power supply…
Fecha:	2010-09-30
Recurso:	Advances in Electrical and Electronic Engineering

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10.

Spectral Subtractive Type Speech Enhancement Methods
Verteletskaya, Ekaterina - Simak, Boris

Formato:	,
Enlaces:	In this paper spectral subtractive method and some of its modification are compared. Performance of spectral subtraction, its limitations, artifacts introduced by it, and spectral subtraction modifications for eliminating these artifacts are discussed in the paper in details. The algorithms…
Fecha:	2010-09-30
Recurso:	Advances in Electrical and Electronic Engineering

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11.

The Software Reliability of Large Scale Integration Circuit and Very Large Scale Integration Circuit
Ganiyev, Artem - Vitasek, Jan

Formato:	,
Enlaces:	This article describes evaluation method of faultless function of large scale integration circuits (LSI) and very large scale integration circuits (VLSI). In the article there is a comparative analysis of factors which determine faultless of integrated circuits, analysis of already…
Fecha:	2010-06-30
Recurso:	Advances in Electrical and Electronic Engineering

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12.

Implementation of Different Variants of Table-Based Frequency Synthesizers with Quadrature Output in VHDL
Kekrt, Daniel - Klima, Milos - Podgorny, Radek - Zavrtalek, Jan

Formato:	,
Enlaces:	This article describes the modelling and implementation of two different variants of direct frequency synthesizer, and evaluation of the performance of the finished design, in terms of memory and speed efficiency. The frequency synthesizer requirement comes from our complex radio…
Fecha:	2012-06-30
Recurso:	Advances in Electrical and Electronic Engineering

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13.

A Virtual Instrument for DC Power Flow Solution Using LabVIEW Language
Souag, Slimane - Benhamida, Farid; Department of Electrical Engineering University of Djillali Liabes

Formato:	,
Enlaces:	In this paper, we present a method for solving the power flow problem by the method of DC power flow using the graphical programming environment of LabVIEW as a virtual instrument (VI) suitable for contingency analysis. The DC power flow…
Fecha:	2012-06-30
Recurso:	Advances in Electrical and Electronic Engineering

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14.

Third Order Low-Pass Filter Using Synthetic Immittance Elements with Current Conveyors
Brandstetter, Pavel - Klein, Lukas

Formato:	,
Enlaces:	The paper deals with a theoretical proposal of the resulting circuit of the frequency filter using synthetic immittance elements of higher order with current conveyors. The text pays particular attention to design process of synthetic immittance elements, explains the principle…
Fecha:	2012-06-30
Recurso:	Advances in Electrical and Electronic Engineering

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15.

Second Order Low-Pass and High-Pass Filter Designs Using Method of Synthetic Immitance Elements
Brandstetter, Pavel; VSB-Technical university of Ostrava - Klein, Lukas; VSB-Technical university of Ostrava

Formato:	,
Enlaces:	The paper briefly describes the basics of frequency filter design method using synthetic immittance elements with current conveyors. An introduction of the paper explains the advantages and also disadvantages of using this method. Other chapters briefly introduce a design process…
Fecha:	2013-03-30
Recurso:	Advances in Electrical and Electronic Engineering

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16.

Speed Estimation of Induction Motor Using Model Reference Adaptive System with Kalman Filter
Brandstetter, Pavel; VSB - Technical University of Ostrava Department of Electronics - Dobrovsky, Marek; VSB - Technical University of Ostrava Department of Electronics

Formato:	,
Enlaces:	The paper deals with a speed estimation of the induction motor using observer with Model Reference Adaptive System and Kalman Filter. For simulation, Hardware in Loop Simulation method is used. The first part of the paper includes the mathematical description…
Fecha:	2013-03-30
Recurso:	Advances in Electrical and Electronic Engineering

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17.

The Test of Organic Solvents Vapours Based on Commercial Tin Dioxide Gas Sensors
Gajdosik, Libor; VSB-technical university of Ostrava

Formato:	,
Enlaces:	This article describes the experiments carried out with the system of three tin dioxide gas sensors MQR 1003, TGS 822 and TGS 813, as well as the achieved results. Vapours of five industrial organic solvents were tested. The measurement values…
Fecha:	2013-06-30
Recurso:	Advances in Electrical and Electronic Engineering

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18.

Semi-Smooth Newton Method for Solving 2D Contact Problems with Tresca and Coulomb Friction
Motyckova, Kristina; Ph.D. student Department of Applied Mathematics, Faculty of Electrical Engineering and Computer Science, VSB-Technical University of Ostrava - Kucera, Radek; Associated professor Centre of Excellence IT4I, VSB-Technical University of Ostrava

Formato:	,
Enlaces:	The contribution deals with contact problems for two elastic bodies with friction. After the description of the problem we present its discretization based on linear or bilinear finite elements. The semi--smooth Newton method is used to find the solution, from…
Fecha:	2013-06-30
Recurso:	Advances in Electrical and Electronic Engineering

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19.

The Applications for the Calculation and Optimization of Passive Optical Networks Attenuation Characteristics
Lafata, Pavel - Vodrazka, Jiri

Formato:	,
Enlaces:	The passive optical networks represent modern and promising solution to meet the increasing demands on the transmission speed in access networks. These optical networks consist only of passive optical components, essential role play mainly the passive optical splitters. Therefore, it…
Fecha:	2010-06-30
Recurso:	Advances in Electrical and Electronic Engineering

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20.

Comprehensive Study of Solar Cell Structure Defects by Means of Noise and Light Emission Analysis
Macku, Robert - Koktavy, Pavel - Sicner, Jiri

Formato:	,
Enlaces:	This paper discusses the issue of silicon solar cells localized defects from metrological and physical points of view. Structure imperfections represent the real problem because of solar cells long-term degradation and conversion efficiency decreasing. To this aim we pay our…
Fecha:	2012-06-30
Recurso:	Advances in Electrical and Electronic Engineering

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21.

Hybrid Microoptical WDM Receiver for PON Communication
Jerabek, Vitezslav; CTU in Prague Faculty of Electrical Engineering - Armas, Julio - Prajzler, Vaclav

Formato:	,
Enlaces:	The paper presents the design, simulation and construction results of the wavelength division multiplex (WDM) optical hybrid receiver module for the passive optical network (PON). The optical WDM receiver was constructed using system of three micromodules in the new circle…
Fecha:	2012-06-30
Recurso:	Advances in Electrical and Electronic Engineering

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22.

New Sophisticated Analysis Method of Crystallizer Temperature Profile Utilizing Optical Fiber DTS Based on the Stimulated Raman Scattering
Koudelka, Petr; Assistant Editor-in-Chief, VSB - Technical University of Ostrava, Faculty of Electrical Engineering and Computer Science, Department of Telecommunications - Liner, Andrej; VSB-Technical University of Ostrava - Papes, Martin; VSB-Technical University of Ostrava - Latal, Jan; VSB-Technical University of Ostrava - Vasinek, Vladimir; VSB-Technical University of Ostrava - Hurta, Jan; VSB-Technical University of Ostrava - Vinkler, Tomas; VSB-Technical University of Ostrava - Siska, Petr; VSB-Technical University of Ostrava

Formato:	,
Enlaces:	Continuous casting is a modern and advanced technology of steel production, whose product is a steel blank as a semifinished product for further manufacturing. It is known that better monitoring and process control of casting improves the steel quality and…
Fecha:	2012-06-30
Recurso:	Advances in Electrical and Electronic Engineering

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23.

Advanced Algorithm for Optimizing the Deployment Cost of Passive Optical Networks
Lafata, Pavel; Department of Telecommunication Engineering, Faculty of Electrical Engineering, Czech Technical University in Prague, Czech Republic

Formato:	,
Enlaces:	The deployment of passive optical networks (PONs) is slow today, especially in Europe, because completely new optical infrastructures are necessary to be installed in the last-mile segments of access networks, which is always very expensive process. One of the possibilities…
Fecha:	2013-03-30
Recurso:	Advances in Electrical and Electronic Engineering

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24.

Restoration of Optical Spectrum
Vitasek, Jan; Layout Editor, VSB - Technical University of Ostrava, Faculty of Electrical Engineering and Computer Science, Department of Telecommunications - Latal, Jan; VSB - Technical University of Ostrava, Faculty of Electrical Engineering and Computer Science, Department of Telecommunications - Siska, Petr; VSB - Technical University of Ostrava, Faculty of Electrical Engineering and Computer Science, Department of Telecommunications - Koudelka, Petr; VSB - Technical University of Ostrava, Faculty of Electrical Engineering and Computer Science, Department of Telecommunications - Vasinek, Vladimir; VSB - Technical University of Ostrava, Faculty of Electrical Engineering and Computer Science, Department of Telecommunications

Formato:	,
Enlaces:	This article deals with research of luminous sources which could be applied in indoor Free Space Optic (FSO) networks. Indoor FSO networks have potential to replace standard IEEE 802.11 in the future. Suitable selection and configuration of optical radiation sources…
Fecha:	2013-06-30
Recurso:	Advances in Electrical and Electronic Engineering

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25.

Utilization Asterisk for Service Desk
Vychodil, Jiri - Tomala, Karel - Voznak, Miroslav

Formato:	,
Enlaces:	Article discusses our established Service Desk, which was created to help and facilitate the work of a wide sector of users. To reduce costs in small and large institutions rather than traditional PBX solutions, the use Voice over IP (VoIP)…
Fecha:	2010-09-30
Recurso:	Advances in Electrical and Electronic Engineering

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26.

Self Tuning Techniques on PLC Background and Control Systems With Self Tuning Methods Design
Kocian, Jiri - Koziorek, Jiri

Formato:	,
Enlaces:	Advanced Process Control techniques have become standard functions of distributed control systems. Self tuning methods belong to Advanced Process Control (APC) techniques. APC techniques contain software packages for advanced control based on mathematical methods. APC tools are designed to increase…
Fecha:	2010-06-30
Recurso:	Advances in Electrical and Electronic Engineering

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27.

Dynamic Constrained Economic/Emission Dispatch Scheduling Using Neural Network
Benhamida, Farid - Belhachem, Rachid; Department of Electrical Engineering University of Djillali Liabes of Sidi Bel-Abbes

Formato:	,
Enlaces:	In this paper, a Dynamic Economic/Emission Dispatch (DEED) problem is obtained by considering both the economy and emission objectives with required constraints dynamically. This paper presents an optimization algorithm for solving constrained combined economic emission dispatch (EED) problem and DEED,…
Fecha:	2013-03-30
Recurso:	Advances in Electrical and Electronic Engineering

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28.

Comparison between Different Control Strategies of a Z-Source Inverter Based Dynamic Voltage Restorer
Kazemdehdashti, Abolfazl; School of Electrical and Computer Engineering, Shiraz University, Shiraz, Iran - Seifi, Ali Reza; School of Electrical and Computer Engineering, Shiraz University, Shiraz, Iran - Shabanpoor Haghighi, Amin; School of Electrical and Computer Engineering, Shiraz University, Shiraz, Iran

Formato:	,
Enlaces:	In this paper, dynamic voltage restorer (DVR) compensation methods are compared to each other for the load side connected shunt converter topology of z-source inverter based DVR to choose the best method. Four different topologies are recognized for DVR that…
Fecha:	2013-06-30
Recurso:	Advances in Electrical and Electronic Engineering

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29.

Investigation of VDSL2 Digital Lines with Bridged Taps and Various Parameters
Lafata, Pavel

Formato:	,
Enlaces:	Modern Very-High Speed Digital Subscriber Lines (VDSL2) can potentially increase the transmission rates in access networks up to tens of Mbps in both directions. However, the real transmission performance of VDSL2 technology is heavily influenced by real conditions of symmetrical…
Fecha:	2013-06-30
Recurso:	Advances in Electrical and Electronic Engineering

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30.

Impact of Apparent Reactance Injected by TCSR on Distance Relay in Presence Phase to Earth Fault
Zellagui, Mohamed; Doctor and Researcher at Research Laboratory of Electromagnetic Propulsion and Induction System (LSP-IE), Faculty of Technology, Department of Electrical Engineering, University of Batna - Chaghi, Abdelaziz; Professor at Research Laboratory of Electromagnetic Propulsion and Induction System (LSP-IE), Faculty of Technology, Department of Electrical Engineering, University of Batna

Formato:	,
Enlaces:	This research paper presents the impact study of apparent reactance injected by series Flexible AC Transmission System (FACTS) i.e. Thyristor Controlled Series Reactor (TCSR) on the measured impedance of a 400 kV single electrical transmission line in the presence of…
Fecha:	2013-06-30
Recurso:	Advances in Electrical and Electronic Engineering

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31.

Design of Power Converters for Renewable Energy Sources and Electric Vehicles Charging
Tvrdon, Martin; Ph.D. Student, VSB - Technical University of Ostrava, Faculty of Electrical Engineering and Computer Science, Department of Electronics - Chlebis, Petr; Professor, VSB - Technical University of Ostrava, Faculty of Electrical Engineering and Computer Science, Department of Electronics - Hromjak, Michal; Ph.D. Student, VSB - Technical University of Ostrava, Faculty of Electrical Engineering and Computer Science, Department of Electronics

Formato:	,
Enlaces:	This paper describes the design and construction of new series of power converters equipped with liquid cooling system. This power series is created for project ENET – Energy Units for Utilization of non Traditional Energy Sources. First power converter is…
Fecha:	2013-06-30
Recurso:	Advances in Electrical and Electronic Engineering

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32.

Using the Antiphase for Elimination the Noise of Electrical Power Equipment
Pokorny, Viktor; Layout editor. Department of Electrical Power Engineering, Faculty of Electrical Engineering and Computer Science, VŠB - Technical University of Ostrava, 17. listopadu 15/2172, Ostrava - Poruba, Czech Republic - Misak, Stanislav; Layout editor. Department of Electrical Power Engineering, Faculty of Electrical Engineering and Computer Science, VŠB - Technical University of Ostrava, 17. listopadu 15/2172, Ostrava - Poruba, Czech Republic

Formato:	,
Enlaces:	The aim of this research is to create functional system which eliminates the noise of electrical devices. This system works on active basis, therefore it process parasitic signal itself and use it for elimination of the noise. On the first…
Fecha:	2013-06-30
Recurso:	Advances in Electrical and Electronic Engineering

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33.

Backup Alternatives for 110 kV Lines
Houdek, Vit; VSB - Technical University of Ostrava - Rusek, Stanislav; VSB - Technical University of Ostrava - Gono, Radomir; VSB - Technical University of Ostrava

Formato:	,
Enlaces:	The paper describes backup alternatives for 110 kV lines. Line backup is one of input parameters used to optimise the renovation of 110 kV lines. The optimisation is based on the principle of reliability centred maintenance (RCM) which depends on…
Fecha:	2013-06-30
Recurso:	Advances in Electrical and Electronic Engineering

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34.

Laboratory Research of Hydrogen Production at VŠB - TU Ostrava, Laboratory Research of Hydrogen Production at VSB-Technical University of Ostrava
Vaculik, Jan; VSB - TU Ostrava - Moldrik, Petr; VSB - TU Ostrava - Hradilek, Zdenek; VSB - TU Ostrava

Formato:	,
Enlaces:	This paper elaborates on the hydrogen technology with respect to electrical power accumulation in hydrogen via Hogen GC600 electrolyzer. Further details will include options for storage of hydrogen into containers currently available. The measurements contained in the paper illustrate laboratory…
Fecha:	2013-03-30
Recurso:	Advances in Electrical and Electronic Engineering