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Aproximadamente 57 registro(s) hasta el momento: (journal)

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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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Removal of a Degraded Concrete Layer with Emphasis on the Surface Optimization Before Application of Repair Material
Janurova, Eva - Pustelnik, Jan - Hlavac, Libor

Formato:	,
Enlaces:	This contribution is concerned with the modelling of destructive effects of a high-velocity water jet, used as a tool for preparation of surfaces during reconstructions, on a degraded layer of concrete. The destruction action of a water jet on model material…
Fecha:	2012-03-31
Recurso:	Advances in Electrical and Electronic Engineering

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Scanning Probe Microscopy as a Tool for Investigation of Biomaterials
Novotna, Veronika - Knapek, Alexandr - Tomanek, Pavel - Safarova, Sarka

Formato:	,
Enlaces:	Super-microscopic techniques like scanning tunnelling microscopy, atomic force microscopy or scanning near-field optical microscopy allows investigate micro- and/or nano-scale surfaces and structures. In this paper, both Environmental scanning electron microscope (ESEM) and Scanning near field optical microscope (SNOM) have been…
Fecha:	2012-12-29
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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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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Novel Wien Bridge Oscillator Design Using Functional Block Structure with Current Conveyors
Brandstetter, Pavel; VSB-Technical University of Ostrava - Klein, Lukas; VSB-Technical University of Ostrava

Formato:	,
Enlaces:	The purpose of this paper is to generally present possibilities of the current conveyor use in the well-known active electronic circuits. Current conveyors are able to substitute all known active elements. This claim is supported by the fact, that four…
Fecha:	2012-03-31
Recurso:	Advances in Electrical and Electronic Engineering

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10.

Electric Vehicle Control Units Communication
Slivka, David - Palacky, Petr - Vaculik, Petr - Havel, Ales

Formato:	,
Enlaces:	Article handles with control units cooperation, which is usable in drive control application especially in electric vehicle. Control unit with Freescale Digital Signal Controller 56F8037 is used as main subject of this research. CAN bus has been selected for control…
Fecha:	2012-03-31
Recurso:	Advances in Electrical and Electronic Engineering

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11.

Detector of Covered Conductor Faults
Hamacek, Stefan; Department of Electrical Engineering, FEI, VSB – Technical Univerzity of Ostrava - Misak, Stanislav; Department of Electrical Engineering, FEI, VSB – Technical Univerzity of Ostrava

Formato:	,
Enlaces:	In the Czech Republic are bare conductor lines replaced by cover conductor lines. The cover conductor lines have many advantages. Advantages and disadvantages of PAS system are described in this paper. This article describes issue of fault detection for lines…
Fecha:	2012-03-31
Recurso:	Advances in Electrical and Electronic Engineering

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12.

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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13.

On PID Controller Design Using Knowledge Based Fuzzy System
Nowakova, Jana; VSB-Technical University of Ostrava - Pokorny, Miroslav; VSB-Technical University of Ostrava

Formato:	,
Enlaces:	The designing of PID controllers is a frequently discussed problem. Many of design methods have been developed, classic (analytical tuning methods, optimization methods etc.) or not so common fuzzy knowledge based methods which are designed to achieve good setpoint following,…
Fecha:	2012-03-31
Recurso:	Advances in Electrical and Electronic Engineering

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14.

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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15.

Analytical Model of IPsec Process Throughput
Tisovsky, Adam - Baronak, Ivan

Formato:	,
Enlaces:	The paper concerns with a throughput of securing process which cannot be described neither by a constant value of bits per second nor by a constant value of packets per second over the range of packet sizes. We propose general…
Fecha:	2012-09-27
Recurso:	Advances in Electrical and Electronic Engineering

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16.

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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17.

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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18.

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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19.

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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20.

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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21.

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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22.

Single Input Variable Universe Fuzzy Controller with Contraction-Expansion Factor for Inverted Pendulum in Real Time
Dhanni, Yogesh Kumar; IIT Roorkee, India

Formato:	,
Enlaces:	In Conventional Fuzzy Logic Controller (CFLC), input variables are the error (E) and the change-in-error (EC) regardless of the complexity of controlled plant. The rule table constructed for CFLC is two dimensional in input space. This two dimensional rule table…
Fecha:	2012-12-29
Recurso:	Advances in Electrical and Electronic Engineering

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23.

A Dynamic Voltage Restorer based on Matrix Converter with Fuzzy Controller
Shabanpour, Amin - Seifi, Ali Reza

Formato:	,
Enlaces:	In this paper, a Dynamic Voltage Restorer (DVR) without any energy storage devices is proposed to compensate network voltage during disturbances. This DVR utilizes a matrix converter in its topology which eliminates the DC-link capacitor of conventional DVR. The modulation…
Fecha:	2012-09-27
Recurso:	Advances in Electrical and Electronic Engineering

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24.

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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25.

Voltage Mode OTRA MOS-C Single Input Multi Output Biquadratic Universal Filter
Pandey, Rajeshwari; Delhi Technological University,Delhi - Pandey, Neeta; Delhi Technological University,Delhi - Paul, Sajal Kumar; Indian School of Mines, Dhanbad, India - Singh, Ajay - Sriram, Balamurali - Trivedi, Kaushalendra

Formato:	,
Enlaces:	In this paper, an Operational transresistance amplifier (OTRA) based MOS-C voltage mode single input multi output (SIMO) biquadratic universal filter configuration is proposed. The configuration is made fully integrated by implementing the resistors using matched transistors operating in the linear…
Fecha:	2012-12-29
Recurso:	Advances in Electrical and Electronic Engineering

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26.

Triangular and Trapezoidal Fuzzy State Estimation with Uncertainty on Measurements
Sarcheshmah, Mohammad Sadeghi - Seifi, Ali Reza

Formato:	,
Enlaces:	In this paper, a new method for uncertainty analysis in fuzzy state estimation is proposed. The uncertainty is expressed in measurements. Uncertainties in measurements are modelled with different fuzzy membership functions (triangular and trapezoidal). To find the fuzzy distribution of…
Fecha:	2012-09-27
Recurso:	Advances in Electrical and Electronic Engineering

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27.

, The Real Implementation of NLMS Channel Equalizer into the System of Software Defined Radio
Martinek, Radek; Faculty of Electrical Engineering and Computer Science VSB-TU Ostrava - Zidek, Jan; Faculty of Electrical Engineering and Computer Science VSB-TU Ostrava

Formato:	,
Enlaces:	, This paper deals with modern wireless transmission systems. It focusses on real implementation of NLMS channel equalizer into the system of software defined radio. The authors aimed to conduct a real measurement (BER vs. Eb/No) using modern modular PXI…
Fecha:	2012-12-29
Recurso:	Advances in Electrical and Electronic Engineering

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28.

Medical Image Denoising by Improved Kuan Filter
Benes, Radek - Riha, Kamil

Formato:	,
Enlaces:	This paper focuses on the issue of speckle noise and its suppression. Firstly, the multiplicative speckle noise model and its mathematical formulation are introduced. Then, certain de-noising methods are described together with possible improvements. On their basis, an improvement of…
Fecha:	2012-03-31
Recurso:	Advances in Electrical and Electronic Engineering

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29.

Fuzzy Methods and Image Fusion in a Digital Image Processing
Vlach, Jaroslav - Kolar, Milan

Formato:	,
Enlaces:	Although the basics of image processing were laid more than 50 years ago, significant development occurred mainly in the last 25 years with the entrance of personal computers and today's problems are already very sophisticated and quick. This article is…
Fecha:	2012-03-31
Recurso:	Advances in Electrical and Electronic Engineering

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30.

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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31.

An Efficient TFETI Based Solver for Elasto-Plastic Problems of Mechanics
Cermak, Martin - Kozubek, Tomas

Formato:	,
Enlaces:	This paper illustrates how to implement effectively solvers for elasto-plastic problems. We consider the time step problems formulated by nonlinear variational equations in terms of displacements. To treat nonlinearity and nonsmoothnes we use semismooth Newton method. In each Newton iteration…
Fecha:	2012-03-31
Recurso:	Advances in Electrical and Electronic Engineering

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32.

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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33.

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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34.

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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35.

Implementation of Optical Meanders of the Optical-Fiber DTS System Based on Raman Stimulated Scattering into the Building Processes
Koudelka, Petr; Assistant Editor-in-Chief, VSB - Technical University of Ostrava, Faculty of Electrical Engineering and Computer Science, Department of Telecommunications - Latal, Jan; VSB-Technical University of Ostrava - Vitasek, Jan; VSB-Technical University of Ostrava - Hurta, Jan; VSB-Technical University of Ostrava - Siska, Petr; VSB-Technical University of Ostrava - Liner, Andrej; VSB-Technical University of Ostrava - Papes, Martin; VSB-Technical University of Ostrava

Formato:	,
Enlaces:	The Optical fiber DTS (Distribution Temperature Systems) are unique distributed temperature systems using optical fiber as a sensor. These systems are able to measure the temperature along the fiber, in some case they can measure tension as well. For their function they use…
Fecha:	2012-09-27
Recurso:	Advances in Electrical and Electronic Engineering

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36.

Evaluation of cooperation WPP and PV connected through the shared transformer to the network 22kV
Sumbera, Tomas; VŠB-TU Ostrava, FEI, Katedra elektroenergetiky - Strida, Frantisek; Department of Electrical Engineering, FEI, VSB – Technical Univerzity of Ostrava - Hradilek, Zdenek; Department of Electrical Engineering, FEI, VSB – Technical Univerzity of Ostrava - Rusek, Stanislav; Department of Electrical Engineering, FEI, VSB – Technical Univerzity of Ostrava

Formato:	,
Enlaces:	The article deals with evaluation the cooperation possibility of wind and solar power plants connected through the common transformator to the 22kV network. Cooperation evaluation is, based on measured data, for wind power plant about installed capacity 2MW and for…
Fecha:	2012-03-31
Recurso:	Advances in Electrical and Electronic Engineering

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37.

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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38.

General Notes on Processes and Their Spectra
Cepciansky, Gustav - Schwartz, Ladislav

Formato:	,
Enlaces:	The frequency spectrum performs one of the main characteristics of a process. The aim of the paper is to show the coherence between the process and its own spectrum and how the behaviour and properties of a process itself can…
Fecha:	2012-09-27
Recurso:	Advances in Electrical and Electronic Engineering

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39.

Experimental System for Investigation of Visual Sensory Input in Postural Feedback Control
Pucik, Jozef - Saling, Marian - Lovas, Stanislav - Kucharik, Martin - Ondracek, Oldrich - Cocherova, Elena

Formato:	,
Enlaces:	The human postural control system represents a biological feedback system responsible for maintenance of upright stance. Vestibular, proprioceptive and visual sensory inputs provide the most important information into the control system, which controls body centre of mass (COM) in order…
Fecha:	2012-09-27
Recurso:	Advances in Electrical and Electronic Engineering

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40.

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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41.

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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42.

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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43.

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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44.

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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45.

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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46.

The Frequency and the Shape of Driving Signal Influence in Measurement of the Active Points
Kukucka, Marek; Slovak University of Technology, Faculty of Electrical engineering and Information, technology, Institute of Electronics and Photonics, assistant professor - Krajcuskova, Zuzana; Slovak University of Technology, Faculty of Electrical engineering and Information, technology, Institute of Electronics and Photonics, assistant professor

Formato:	,
Enlaces:	Our contribution deals with the human skin voltage chart measurement. The human skin has a certain impedance or resistance - it can be easily described and simulated using a substitute electric circuit. But the skin also contains parts with measurably…
Fecha:	2012-09-27
Recurso:	Advances in Electrical and Electronic Engineering

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47.

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

Recurso libre

48.

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

Recurso libre

49.

A New Threshold Switching Scheme for a DVB-RCS Mobile Return Link in a Terrestrian Railway Scenario
Tropea, Mauro; Dipartimento di Elettronica Informatica e Sistemistica Faculty of Engineering University of Calabria

Formato:	,
Enlaces:	The new standard for DVB-RCS includes guidelines for mobile user in the market of aircraft, maritime and terrestrial transportation. The standard proposed by ETSI suggests the possibility of using a continuous carrier operation mode in the return channel, beside the…
Fecha:	2012-12-29
Recurso:	Advances in Electrical and Electronic Engineering

Recurso libre

50.

Evaluation of Resonance Properties of the Human Body Models Situated in the RF Field
Cocherova, Elena - Malicky, Gabriel - Kupec, Peter - Stofanik, Vladimir - Pucik, Jozef

Formato:	,
Enlaces:	The radio-frequency (RF) electromagnetic field absorption in the human body model is investigated in this article. Absorption of prolate model of the biological body exhibits resonance properties in the case of so called E polarization. This occurs in the arrangement…
Fecha:	2012-12-29
Recurso:	Advances in Electrical and Electronic Engineering

Recurso libre

51.

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

Recurso libre

52.

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

Recurso libre

53.

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

Recurso libre

54.

Generating Parallel Applications from Models Based on Petri Nets
Bohm, Stanislav; Faculty of Electrical Engineering and Computer Science, VSB - Technical University of Ostrava - Behalek, Marek; Faculty of Electrical Engineering and Computer Science, VSB - Technical University of Ostrava

Formato:	,
Enlaces:	Parallel and distributed systems play an important role in the development of information technologies and their applications today. These systems are very useful but their development and usage is inherently more difficult. A solution can be a tool focused on…
Fecha:	2012-03-31
Recurso:	Advances in Electrical and Electronic Engineering

Recurso libre

55.

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

Recurso libre

56.

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

Recurso libre

57.

Automated Region of Interest Retrieval of Metallographic Images for Quality Classification in Industry
Kotas, Petr; Department of Applied Mathematics (K 470) Faculty of Electrical Engineering and Computer Science (FEI) VSB-Technical University of Ostrava Tr. 17. listopadu 15 CZ 708 33 Ostrava-Poruba Czech Republic - Praks, Pavel; Department of Applied Mathematics (K 470) Faculty of Electrical Engineering and Computer Science (FEI) VSB-Technical University of Ostrava Tr. 17. listopadu 15 CZ 708 33 Ostrava-Poruba Czech Republic - Valek, Ladislav; Research – Production Technology, ArcelorMittal Ostrava plc, Ostrava, Czech Republic - Zejkovic, Vesna; New York Institute of Technology, School of Engineering & Computing Sciences, Nanjing campus, China - Vondrak, Vit; Department of Applied Mathematics (K 470) Faculty of Electrical Engineering and Computer Science (FEI) VSB-Technical University of Ostrava Tr. 17. listopadu 15 CZ 708 33 Ostrava-Poruba Czech Republic

Formato:	,
Enlaces:	The aim of the research is development and testing of new methods to classify the quality of metallographic samples of steels with high added value (for example grades X70 according API). In this paper, we address the development of methods…
Fecha:	2012-03-31
Recurso:	Advances in Electrical and Electronic Engineering