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A Combined TOPSIS and FA Based Strategic Analysis of Technical Condition of High Power Transformers
Bartlomeijczyk, Mikolaj - Gutten, Miroslav - Hamacek, Stefan

Formato:	,
Enlaces:	The paper presents mathematical model - TOPSIS method, which was utilized on insulating state of distribution transformer to analyze and sensibility of individual measurements methods mutual comparison. We can uniquely determine the importance of these measurements methods with this mathematical…
Fecha:	2013-09-24
Recurso:	Advances in Electrical and Electronic Engineering

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A Single MO-CFTA Based Electronically/Temperature Insensitive Current-mode Half-wave and Full-wave Rectifiers
Kongnun, Weerapon - Silapan, Phamorn

Formato:	,
Enlaces:	The article presents a current-mode full-wave rectifier employing multiple output current follower transconductance amplifier (MO-CFTA). The both circuits description is very simple, it merely comprises only single MO-CFTA, without external passive element. In addition, the magnitude and direction of output…
Fecha:	2013-09-24
Recurso:	Advances in Electrical and Electronic Engineering

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Optical Properties of Microstructured Fibre Tuned by Filling with Magnetic Liquids
Vanda, Jan; HiLASE project, Institute of Physics, Acadamy of Sciences of the Czech Republic - Candiani, Alessandro; Information Engineering Department, University of Parma, Area Parco delle Scienze 181/A 43124, Parma, Italy

Formato:	,
Enlaces:	Alternative for adjust optical fiber light-guiding properties by bulk glass doping is provided by microstructured optical fibers, which allows access directly to the light guiding core via their microstructure. Following paper will report utilizing of suspended-core, so-called high-delta, microstructured optical…
Fecha:	2013-09-24
Recurso:	Advances in Electrical and Electronic Engineering

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Frequency Bandwidth of Half-Wave Impedance Repeater
Dvorsky, Marek; Department of Telecommunications VSB–Technical University Ostrava Ostrava–Poruba Czech Republic - Michalek, Libor; Department of Telecommunications VSB–Technical University Ostrava Ostrava–Poruba - Tomis, Martin; Department of Telecommunications VSB–Technical University Ostrava Ostrava–Poruba

Formato:	,
Enlaces:	This article brings in the second part general information about half-wave impedance repeater. The third part describes the basic functional principles of the half-wave impedance repeater using Smith chart. The main attention is focused in part four on the derivation…
Fecha:	2012-11-24
Recurso:	Advances in Electrical and Electronic Engineering

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Random Cell Identifiers Assignment
Bestak, Robert; Department of Telecommunication Engineering Czech Technical University in Prague Prague - Helou, Valentin; Ecole des Mines de Nantes Nantes

Formato:	,
Enlaces:	Despite integration of advanced functions that enable Femto Access Points (FAPs) to be deployed in a plug-and-play manner, the femtocell concept still cause several opened issues to be resolved. One of them represents an assignment of Physical Cell Identifiers (PCIs)…
Fecha:	2012-11-24
Recurso:	Advances in Electrical and Electronic Engineering

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Dual Shots Detection
Vozarikova, Eva; Deptartment of Electronics and Multimedia Communications Technical University of Kosice Kosice - Juhar, Jozef; Deptartment of Electronics and Multimedia Communications Technical University of Kosice Kosice - Cizmar, Anton; Deptartment of Electronics and Multimedia Communications Technical University of Kosice Kosice

Formato:	,
Enlaces:	The identification of a special kind of acoustic events such as dual gunshots and single gunshots in the traffic background is described in this work. The recognition of dangerous sounds may help to prevent the abnormal or criminal activities that…
Fecha:	2012-11-24
Recurso:	Advances in Electrical and Electronic Engineering

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Modelling the Probability Density Function of IPTV Traffic Packet Delay Variation
Halas, Michal; Department of Telecommunications Faculty of Electrical Engineering and Information Technology Slovak University of Technology Bratislava - Klucik, Stanislav; Department of Telecommunications Faculty of Electrical Engineering and Information Technology Slovak University of Technology Bratislava

Formato:	,
Enlaces:	This article deals with modelling the Probability density function of IPTV traffic packet delay variation. The use of this modelling is in an efficient de-jitter buffer estimation. When an IP packet travels across a network, it experiences delay and its…
Fecha:	2012-11-24
Recurso:	Advances in Electrical and Electronic Engineering

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Parameters of Twisted Pairs Assessment for Frequency Band up to 1 GHz
Nevosad, Marek; Department of Telecommunication Engineering Faculty of Electrical Engineering, Czech Technical University in Prague Prague - Vodrazka, Jiri; Department of Telecommunication Engineering Faculty of Electrical Engineering, Czech Technical University in Prague Prague - Lafata, Pavel; Department of Telecommunication Engineering Faculty of Electrical Engineering, Czech Technical University in Prague Prague

Formato:	,
Enlaces:	The paper describes the measuring and modeling of attenuation and near-end crosstalk for a specific metallic cable in a frequency band up to 1 GHz. The paper also includes primary transmission parameters of this cable, which consists of four twisted…
Fecha:	2012-11-24
Recurso:	Advances in Electrical and Electronic Engineering

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Impact of Compression on the Video Quality
Uhrina, Miroslav; Department Department of Telecommunications and Multimedia Faculty of Electrical Engineering, University of Zilina Zilina - Hlubik, Jan; Department Department of Telecommunications and Multimedia Faculty of Electrical Engineering, University of Zilina Zilina - Vaculik, Martin; Department Department of Telecommunications and Multimedia Faculty of Electrical Engineering, University of Zilina Zilina

Formato:	,
Enlaces:	This article deals with the impact of compression on the video quality. In the first part, a short characteristic of the most used MPEG compression standards is written. In the second part, the parameter Group of Picture (GOP) with particular…
Fecha:	2012-11-24
Recurso:	Advances in Electrical and Electronic Engineering

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10.

Comparison of Different Scenarios for Path Diversity Packet Wireless Networks
Chlumsky, Petr; Department of Telecommunication Engineering Faculty of Electrical Engineering Czech Technical University in Prague Prague - Kocur, Zbynek; Department of Telecommunication Engineering Faculty of Electrical Engineering Czech Technical University in Prague Prague - Vodrazka, Jiri; Department of Telecommunication Engineering Faculty of Electrical Engineering Czech Technical University in Prague Prague

Formato:	,
Enlaces:	This article discusses the use of the principles of network coding in wireless networks to increase the overall robustness of the transmission. Path diversity on the packet level is investigated as a software alternative to classical diversity techniques commonly used…
Fecha:	2012-11-24
Recurso:	Advances in Electrical and Electronic Engineering

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11.

Evaluation of the Harmonic Impedance of Frydlant (Line 53) Power Network
Ali, Shehab Abdulwadood; University of Aden - Bodor, Alfred; EnerGoConsult CB, s.r.o.

Formato:	,
Enlaces:	The harmonic impedance of the power system is an important quantity, which describes the behaviour of the power system with the existence of different frequencies beside the fundamental. The harmonic study belongs to the most difficult part of the electrical…
Fecha:	2013-09-24
Recurso:	Advances in Electrical and Electronic Engineering

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12.

An Approach to Personalized Search within Distributed Repository of Visual Data
Glowacz, Andrzej; Department of Telecommunications AGH University of Science and Technology Krakow - Orzechowski, Tomasz Marcin; Academic Computer Centre CYFRONET AGH University of Science and Technology Krakow - Dziech, Andrzej; Department of Telecommunications AGH University of Science and Technology Krakow

Formato:	,
Enlaces:	In this paper, we introduce functional assumptions of the distributed repository of visual data that are one of key aspects of SYNAT framework for digital libraries. The proposed system will provide innovative tools and extend capabilities of current repositories. Within…
Fecha:	2012-11-24
Recurso:	Advances in Electrical and Electronic Engineering

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13.

Objective Assessment of IP Video Calls with Asterisk
Kapicak, Lukas; Department of Telecommunications VSB-Technical University of Ostrava Ostrava - Nevlud, Pavel; Department of Telecommunications VSB-Technical University of Ostrava Ostrava - Mikulec, Martin; Department of Telecommunications VSB-Technical University of Ostrava Ostrava - Zdralek, Jaroslav; Department of Telecommunications VSB-Technical University of Ostrava Ostrava

Formato:	,
Enlaces:	The paper deals with an objective assessment of IP video calls transmission over GSM and UMTS networks. Video transmission is affected by many factors in mobile network. Among these factors belong packet loss, latency and transmission rate of the mobile…
Fecha:	2012-11-24
Recurso:	Advances in Electrical and Electronic Engineering

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14.

A New Markovian Prediction Scheme for Resource Reservations in Wireless Networks with Mobile Hosts
Fazio, Peppino; Dipartimento di Elettronica Informatica e Sistemistica Faculty of Engineering University of Calabria - Tropea, Mauro; Dipartimento di Elettronica Informatica e Sistemistica Faculty of Engineering University of Calabria

Formato:	,
Enlaces:	Nowadays, mobile service requests in wireless networking are aimed to the benefit of a good level of satisfaction for the received Quality of Service (QoS) guarantees. In this paper, a new prediction algorithm is proposed, for the pre-reservation of passive…
Fecha:	2012-11-24
Recurso:	Advances in Electrical and Electronic Engineering

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15.

Analysis of Morph-Based Language Modeling and Speech Recognition in Slovak
Stas, Jan; Department of Electronics and Multimedia Communications Faculty of Electrical Engineering and Informatics Technical University of Kosice Kosice - Hladek, Daniel; Department of Electronics and Multimedia Communications Faculty of Electrical Engineering and Informatics Technical University of Kosice Kosice - Juhar, Jozef; Department of Electronics and Multimedia Communications Faculty of Electrical Engineering and Informatics Technical University of Kosice Kosice - Zlacky, Daniel; Department of Electronics and Multimedia Communications Faculty of Electrical Engineering and Informatics Technical University of Kosice Kosice

Formato:	,
Enlaces:	The inflection of the Slovak language causes a large number of unique word forms, which produces not only a large vocabulary, but also a number of out-of-vocabulary words. Morph-based language models solve this problem by decomposition of inflected word forms…
Fecha:	2012-11-24
Recurso:	Advances in Electrical and Electronic Engineering

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16.

OPNET Modeler Simulation Testing of the New Model Used to Cooperation Between QoS and Security Mechanisms
Papaj, Jan; Department of Electronics and Multimedia Communications Faculty of Electrical Engineering and Informatics Technical University of Kosice Kosice - Dobos, Lubomir; Department of Electronics and Multimedia Communications Faculty of Electrical Engineering and Informatics Technical University of Kosice Kosice - Cizmar, Anton; Department of Electronics and Multimedia Communications Faculty of Electrical Engineering and Informatics Technical University of Kosice Kosice

Formato:	,
Enlaces:	In this article the performance analysis of the new model, used to integration between QoS and Security, is introduced. OPNET modeler simulation testing of the new model with comparation with the standard model is presented. This new model enables the…
Fecha:	2012-11-24
Recurso:	Advances in Electrical and Electronic Engineering

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17.

ToA Node Distance Estimation Enhancement in MANET Localization Algorithm Based on Cooperative Trilateration
Cipov, Vladimir; Department of Electronics and Multimedia Communications Faculty of Electrical Engineering and Informatics Technical University of Kosice Kosice - Dobos, Lubomir; Department of Electronics and Multimedia Communications Faculty of Electrical Engineering and Informatics Technical University of Kosice Kosice - Papaj, Jan; Department of Electronics and Multimedia Communications Faculty of Electrical Engineering and Informatics Technical University of Kosice Kosice

Formato:	,
Enlaces:	This paper provides a brief survey of the Time of Arrival (ToA) ranging method often used in the Range-based localization for node distance estimation. It is focused especially on the Non Line-of-Sight (NLoS) channel identification – one of the dominant…
Fecha:	2012-11-24
Recurso:	Advances in Electrical and Electronic Engineering

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18.

Eigenvalue Criterion-Based Feature Selectionin Principal Component Analysis of Speech
Viszlay, Peter; Department of Electronics and Multimedia Communications Faculty of Electrical Engineering and Informatics Technical University of Kosice Kosice - Janecko, Jozef; Department of Electronics and Multimedia Communications Faculty of Electrical Engineering and Informatics Technical University of Kosice Kosice - Juhar, Jozef; Department of Electronics and Multimedia Communications Faculty of Electrical Engineering and Informatics Technical University of Kosice Kosice

Formato:	,
Enlaces:	This article presents a specific approach for selecting a limited set of most relevant, information rich speech data from the whole amount of training data. The proposed method uses Principal Component Analysis (PCA) to optimally select a lower-dimensional data subset…
Fecha:	2012-11-24
Recurso:	Advances in Electrical and Electronic Engineering

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19.

Textile Antenna for 50 ohm Applications
Dahal, Robi; Department of Telecommunication Engineering Faculty of Electrical Engineering Czech Technical University in Prague Prague - Mercan, Demet; Department of Electronics, Mathematics and Natural Sciences, Faculty of Engineering and Sustainable Development, University of Gavle - Vojtech, Lukas; Department of Telecommunication Engineering Faculty of Electrical Engineering Czech Technical University in Prague Prague - Neruda, Marek; Department of Telecommunication Engineering Faculty of Electrical Engineering Czech Technical University in Prague Prague

Formato:	,
Enlaces:	The new generation of textile materials have the capability to conduct electricity and at the same time be wearable. There are much more applications involved if an antenna is made from parts that are totally wearable. This new property of…
Fecha:	2012-11-24
Recurso:	Advances in Electrical and Electronic Engineering

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20.

Fundamental Frequency Extraction Method using Central Clipping and its Importance for the Classification of Emotional State
Partila, Pavol; Department of Telecommunications Faculty of Electrical Engeneering and Computer Science VSB-Technical University of Ostrava Ostrava - Voznak, Miroslav; Department of Telecommunications Faculty of Electrical Engeneering and Computer Science VSB-Technical University of Ostrava Ostrava - Mikulec, Martin; Department of Telecommunications Faculty of Electrical Engeneering and Computer Science VSB-Technical University of Ostrava Ostrava - Zdralek, Jaroslav; Department of Telecommunications Faculty of Electrical Engeneering and Computer Science VSB-Technical University of Ostrava Ostrava

Formato:	,
Enlaces:	The paper deals with a classification of emotional state. We implemented a method for extracting the fundamental speech signal frequency by means of a central clipping and examined a correlation between emotional state and fundamental speech frequency. For this purpose,…
Fecha:	2012-11-24
Recurso:	Advances in Electrical and Electronic Engineering

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21.

E-Model MOS Estimate Precision Improvement and Modelling of Jitter Effects
Kovac, Adrian - Halas, Michal

Formato:	,
Enlaces:	This paper deals with the ITU-T E-model, which is used for non-intrusive MOS VoIP call quality estimation on IP networks. The pros of E-model are computational simplicity and usability on real-time traffic. The cons, as shown in our previous work,…
Fecha:	2012-11-24
Recurso:	Advances in Electrical and Electronic Engineering

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22.

Markov Model M/M/m/K in Contact Center
Chromy, Erik; Slovak University of Technology - Diezka, Jan; Institute of Telecommunications Faculty of Electrical engineering and Information Technology Slovak University of Technology Bratislava - Kavacky, Matej; Institute of Telecommunications Faculty of Electrical engineering and Information Technology Slovak University of Technology Bratislava

Formato:	,
Enlaces:	Our paper deals with a contact center dimensioning. The main task of a contact center is to offer services to customers. The most simple and genuine way of communication with the contact center agent is by phone. From the customer…
Fecha:	2012-11-24
Recurso:	Advances in Electrical and Electronic Engineering

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23.

Improvement of Network Efficiency on the Grounds of Change Communication Protocol
Vychodil, Jiri; Department of Telecommunications Faculty of Electrical Engineering and Computer Science VSB-Technical University of Ostrava Ostrava - Mikulec, Martin; Department of Telecommunications Faculty of Electrical Engineering and Computer Science VSB-Technical University of Ostrava Ostrava - Safarik, Jakub; Department of Telecommunications Faculty of Electrical Engineering and Computer Science VSB-Technical University of Ostrava Ostrava - Voznak, Miroslav; Department of Telecommunications Faculty of Electrical Engineering and Computer Science VSB-Technical University of Ostrava Ostrava

Formato:	,
Enlaces:	This article deals with both theoretical and practical application of Extensible Messaging and Presence Protocol instead of different solution described detailed in the article. It uses periodically HTTP method POST to gain information about a state, which a client stands…
Fecha:	2012-11-24
Recurso:	Advances in Electrical and Electronic Engineering

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24.

Adapting the Streaming Video Based on the Estimated Motion Position
Aziz, Hussein Muzahim; School of Computing Blekinge Institute of Technology Karlskrona - Fiedler, Markus; School of Computing Blekinge Institute of Technology Karlskrona - Grahn, Hakan; School of Computing Blekinge Institute of Technology Karlskrona - Lundberg, Lars; School of Computing Blekinge Institute of Technology Karlskrona

Formato:	,
Enlaces:	In real time video streaming, the frames must meet their timing constraints, typically specified as their deadlines. Wireless networks may suffer from bandwidth limitations. To reduce the data transmission over the wireless networks, we propose an adaption technique in the…
Fecha:	2012-11-24
Recurso:	Advances in Electrical and Electronic Engineering

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25.

A New Concept of Two-Stage Multi-Element Resonant-/Cyclo-Converter for Two-Phase IM/SM Motor
Abdalmula, Mahmud Ali Rzig

Formato:	,
Enlaces:	The paper deals with a new concept of power electronic two-phase system with two-stage DC/AC/AC converter and two-phase IM/PMSM motor. The proposed system consisting of two-stage converter comprises: input resonant boost converter with AC output, two-phase half-bridge cyclo-converter commutated by…
Fecha:	2013-09-24
Recurso:	Advances in Electrical and Electronic Engineering

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26.

Performance of LTE ADVANCED Uplink in a Flat Rayleigh Channel
Kasem, Edward; BUT university - Faculty of Electrical Engineering and Communication - Marsalek, Roman; BUT university - Faculty of Electrical Engineering and Communication - Blumenstein, Jiri; BUT university - Faculty of Electrical Engineering and Communication

Formato:	,
Enlaces:	This paper describes the performance of LTE advanced uplink transmission in a flat Rayleigh channel. The uplink is simulated using a modified version of the Vienna uplink link level matlab code simulator. This modified version supports two transmission antennas instead…
Fecha:	2013-09-24
Recurso:	Advances in Electrical and Electronic Engineering

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27.

Transmission Delay Modeling of Packet Communication over Digital Subscriber Line
Vodrazka, Jiri; Dpt. of Telecommunication Engineering Czech Technical University in Prague - Lafata, Pavel; Dpt. of Telecommunication Engineering Czech Technical University in Prague

Formato:	,
Enlaces:	Certain multimedia and voice services, such as VoIP, IPTV, etc., are significantly delay sensitive and their performance is influenced by the overall transmission delay and its variance. One of the most common solutions used in access networks are xDSL lines,…
Fecha:	2013-09-24
Recurso:	Advances in Electrical and Electronic Engineering

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28.

Fault Indicators of Partial Discharges in Medium-Voltage Systems
Hamacek, Stefan; VŠB-TU Ostrava Štefan HAMACEK, today he is a scientific researcher in the Department of Electrical Engineering, Technical University of Ostrava and applies himself to the issue of medium-voltage lines with covered conductors and problems associated with the fault detection of covered conductors. He also deals with the problems of traction cathenary and research dissemination of stray currents in the area of traction. - Misak, Stanislav

Formato:	,
Enlaces:	The safety and reliability of the electricity system, these are the two basic keywords present in the energy sector. One of the ways to improve the overall security of the electricity system is to reduce the failure rate of transmission…
Fecha:	2013-09-24
Recurso:	Advances in Electrical and Electronic Engineering

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29.

Performance Evaluation of INACT - INDECT Advanced Image Cataloguing Tool
Michalek, Libor; Site Administrator, VSB - Technical University of Ostrava Faculty of Electrical Engineering and Computer Science, Department of Telecommunications - Grega, Michal; Department of Telecommunications FCSET AGH University of Science and Technology Krakow - Bryk, Damian; Department of Telecommunications FCSET AGH University of Science and Technology Krakow - Grabowski, Bartlomiej; Department of Telecommunications FCSET AGH University of Science and Technology Krakow

Formato:	,
Enlaces:	In this article, we describe the performance evaluation of INACT tool which is developed for cataloguing of high-level and low-level metadata of the evidence material. INACT tool can be used by police forces in the cases of prosecution of such…
Fecha:	2012-11-24
Recurso:	Advances in Electrical and Electronic Engineering

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30.

Statistical Analysis of Compression Methods for Storing Binary Image for Low-Memory Systems
Slaby, Roman; VSB-TUO - Nowakova, Jana; VSB-TUO - Hercik, Radim; VSB-TUO

Formato:	,
Enlaces:	The paper is focused on the statistical comparison of the selected compression methods which are used for compression of the binary images. The aim is to asses, which of presented compression method for low-memory system requires less number of bytes…
Fecha:	2013-09-24
Recurso:	Advances in Electrical and Electronic Engineering

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31.

IP Telephony Based Danger Alert Communication System and Its Implementation
Rezac, Filip; Copyeditor, VSB - Technical University of Ostrava, Faculty of Electrical Engineering and Computer Science, Department od Telecommunications - Kolenovsky, Filip; Department of Computer Science Faculty of Electrical Engineering and Computer Science VSB-Technical University of Ostrava Ostrava-Poruba - Mikulec, Martin; Department of Telecommunications Faculty of Electrical Engineering and Computer Science VSB-Technical University of Ostrava Ostrava-Poruba - Voznak, Miroslav; Department of Telecommunications Faculty of Electrical Engineering and Computer Science VSB-Technical University of Ostrava Ostrava-Poruba - Rozhon, Jan; Department of Telecommunications Faculty of Electrical Engineering and Computer Science VSB-Technical University of Ostrava Ostrava-Poruba - Vychodil, Jiri; Department of Telecommunications Faculty of Electrical Engineering and Computer Science VSB-Technical University of Ostrava Ostrava-Poruba - Tomala, Karel; Department of Telecommunications Faculty of Electrical Engineering and Computer Science VSB-Technical University of Ostrava Ostrava-Poruba - Safarik, Jakub; Department of Telecommunications Faculty of Electrical Engineering and Computer Science VSB-Technical University of Ostrava Ostrava-Poruba

Formato:	,
Enlaces:	The paper deals with development of a web application allowing to deliver pre-recorded voice messages by using SIP generator. The developed application is a part of complex system, which has been evolved in Dpt. of Telecommunications, Technical University of Ostrava…
Fecha:	2012-11-24
Recurso:	Advances in Electrical and Electronic Engineering