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Aproximadamente 33 registro(s) hasta el momento: (journal)

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Epitaxial Layers of InP Doped With Rare Elements for Use in Radiation Detector
Kozak, Halyna - Sopko, Bruno - Zdansky, Karel

Formato:	,
Enlaces:	We have focused on the investigation of the impact of Ce, Eu, Tm, Eu2O3 and Tm2O3 addition in LPE growth process on the properties of InP layers in the context of their application in detector structures.
Fecha:	2011-06-20
Recurso:	Advances in Electrical and Electronic Engineering

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Possibilities of Genetic Algorithm Application in the Calculation of Power Networks Operation,
Rapsik, Miroslav - Altus, Juraj

Formato:	,
Enlaces:	The paper describes the possibilities of genetic algorithm application by the reactive power flows’ optimization in Slovak power transmission system. The methods of reactive power flow calculation and the utilization of genetic algorithms for their minimalization are indicated in the…
Fecha:	2011-06-20
Recurso:	Advances in Electrical and Electronic Engineering

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Location in Mobile Networks Using Database Correlation (DCM)
Mada, Michal - Duha, Jan

Formato:	,
Enlaces:	The article presents one of the methods of location (DCM), which is suitable for using in urban environments, where other methods are less accurate. The principle of this method is in comparison of measured samples of signal with samples stored…
Fecha:	2011-06-20
Recurso:	Advances in Electrical and Electronic Engineering

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Advanced Ceramics Electronics Application
Trnka, Pavel - Bujalobokova, Magdalena

Formato:	,
Enlaces:	Ceramics materials infringe human life from early years of the humankind. Together with the progress of the science and engineering, various materials and technologies have been used. Suitable materials and technologies have been used in the proper applications. This paper…
Fecha:	2011-06-20
Recurso:	Advances in Electrical and Electronic Engineering

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Analysis of Efficiency Characteristics of Squirrel-Cage Induction Motor Loaded With Water System Pump
Lukasik, Zbigniew; Technical University of Radom - Szychta, Leszek; Technical University of Radom

Formato:	,
Enlaces:	The article presents a method of calculating efficiency of squirrel-cage induction motor. This efficiency depends on frequency of the voltage supplied to the motor and on electrical power. Results of laboratory testing of the motor's efficiency are presented.
Fecha:	2011-06-20
Recurso:	Advances in Electrical and Electronic Engineering

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3D Reconstruction of NMR Images
Izak, Peter - Smetana, Milan - Hargas, Libor - Hrianka, Miroslav - Spanik, Pavol

Formato:	,
Enlaces:	This paper introduces experiment of 3D reconstruction NMR images scanned from magnetic resonance device. There are described methods which can be used for 3D reconstruction magnetic resonance images in biomedical application. The main idea is based on marching cubes algorithm. For…
Fecha:	2011-06-20
Recurso:	Advances in Electrical and Electronic Engineering

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Fault Diagnosis in Deaerator Using Fuzzy Logic
Srinivasan, S - Kanagasabapathy, P - Selvaganesan, N

Formato:	,
Enlaces:	In this paper a fuzzy logic based fault diagnosis system for a deaerator in a power plant unit is presented. The system parameters are obtained using the linearised state space deaerator model. The fuzzy inference system is created and rule…
Fecha:	2011-06-20
Recurso:	Advances in Electrical and Electronic Engineering

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Operation States Analysis of the Series-Parallel resonant Converter Working Above Resonance Frequency
Dzurko, Peter - Durdik, Jaroslav

Formato:	,
Enlaces:	Operation states analysis of a series-parallel converter working above resonance frequency is described in the paper. Principal equations are derived for individual operation states. On the basis of them the diagrams are made out. The diagrams give the complex image…
Fecha:	2011-06-20
Recurso:	Advances in Electrical and Electronic Engineering

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Contribution to Control of an Elastic Two-Mass System by Means of Genetic Algorithm
Ferkova, Zelmira - Zboray, Ladislav

Formato:	,
Enlaces:	Oscillations of an elastic two-mass system with all known parameters may be suppressed by suitable feedback signal. An observer enables to estimate this feedback without measurement of load mechanism speed. This article contains application of genetic algorithms for identification of…
Fecha:	2011-06-20
Recurso:	Advances in Electrical and Electronic Engineering

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10.

The Development of Breakdown in Transformer Oil
Kudelcik, Jozef; Žilinská univerzita v Žiline

Formato:	,
Enlaces:	The conditions under which breakdown of composite liquid - solid insulation can be occurred, e.g. in transformer, play an important role in designing of such insulation. The initial state of breakdown development is explained based on development of streamers in…
Fecha:	2011-06-20
Recurso:	Advances in Electrical and Electronic Engineering

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11.

Properties Verification of MMPP and IPP ATM Cell Sources
Zabka, Jan

Formato:	,
Enlaces:	The paper is aimed to using aided software tool designed by .NET Framework. By means this one is possible to gain statistical file for next processing by software tool STATISTICA. Graphical results ilustrate the influence of cell flow source and…
Fecha:	2011-06-20
Recurso:	Advances in Electrical and Electronic Engineering

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12.

Domain Wall Mobility in Co-Based Amorphous Wire
Kladivova, Maria - Ziman, Jan - Zagyi, Barnabas

Formato:	,
Enlaces:	Dynamics of the domain wall between opposite circularly magnetized domains in amorphous cylindrical sample with circular easy direction is theoretically studied. The wall is driven by DC current. Various mechanisms which influence the wall velocity were taken into account: current…
Fecha:	2011-06-20
Recurso:	Advances in Electrical and Electronic Engineering

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13.

The Limitation of Using the Average Refractive Index Model in Photonic Crystal Fibres
Kacik, Daniel; University of Zilina - Turek, Ivan; University of Zilina

Formato:	,
Enlaces:	Results of investigation of dependence of transmission function of so called “index guiding” photonic crystal fibres on mechanical bending is presented in this paper. The bending was realised in two differently oriented planes. In both cases the influence of the…
Fecha:	2011-06-20
Recurso:	Advances in Electrical and Electronic Engineering

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14.

Microstructure Related Characterization of a-Si:H Thin Films PECVD Deposited under Varied Hydrogen Dilution
Vavrunkova, Veronika - Mullerova, Jarmila - Sutta, Pavel

Formato:	,
Enlaces:	We report on the structure and optical properties of hydrogenated silicon thin films deposited by plasma - enhanced chemical vapor deposition (PECVD) from silane diluted with hydrogen in a wide dilution range. The samples deposited with dilutions below 30 were…
Fecha:	2011-06-20
Recurso:	Advances in Electrical and Electronic Engineering

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15.

Kinetic Analysis of Mica Tape Curing Process
Polansky, Radek

Formato:	,
Enlaces:	Curing program of thermoset insulating materials and its responsible setting has the key importance for assurance of high quality and reliability of electrical devices. It is possible to determine parameters of this program (temperature and time of curing) by several…
Fecha:	2011-06-20
Recurso:	Advances in Electrical and Electronic Engineering

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16.

The Reviewing of Distributed Power Sources Impact on Fallout’s Localization in 22 kV Network
Bracinik, Peter - Otcenasova, Alena

Formato:	,
Enlaces:	The aim of this paper is to point out some facts that will occur by fault localization in 22 kV networks after the implementation of distributed power sources, especially wind power plants. This paper describes possible connection of these sources…
Fecha:	2011-06-20
Recurso:	Advances in Electrical and Electronic Engineering

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17.

Structure Change of the Insulating Composite
Mentlik, Vaclav - Trnka, Pavel - Taborik, Ondrej - Pihera, Josef

Formato:	,
Enlaces:	Modern power electric drives brought advantages in induction motor control. In the same time appeared problems with high frequency square waveform voltage (pulse stress) produced by the voltage converters. Voltage converters produce repetitive pulses with high level of voltage rise…
Fecha:	2011-06-20
Recurso:	Advances in Electrical and Electronic Engineering

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18.

Theoretical and Probability Analysis of Frequency Selective Circuits
Cherneva, Galina Petkova - Andonov, Antonio Vladimirov

Formato:	,
Enlaces:	The deviations of the circuit characteristics from their nominal values are random quantities and appear as a result of different destabilizing factors. With designing frequency selective circuits, two mutually connected problems are solved. The one is a study on the…
Fecha:	2011-06-20
Recurso:	Advances in Electrical and Electronic Engineering

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19.

Investigation of Defects as a Loading Impedance of Waveguide
Faktorova, Dagmar - Majer, Jozef

Formato:	,
Enlaces:	The paper deals with non-destructive microwave measurement of metal defects exploiting the waveguide features at the defect shape evaluation, (e.g. quarter – waveguide transformer). As we notify in the foregoing article we have paid our attention to the non-destructive investigation…
Fecha:	2011-06-20
Recurso:	Advances in Electrical and Electronic Engineering

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20.

Signal Compression in Automatic Ultrasonic testing of Rails
Ciszewski, Tomasz - Lukasik, Zbigniew

Formato:	,
Enlaces:	Full recording of the most important information carried by the ultrasonic signals allows realizing statistical analysis of measurement data. Statistical analysis of the results gathered during automatic ultrasonic tests gives data which lead, together with use of features of measuring…
Fecha:	2011-06-20
Recurso:	Advances in Electrical and Electronic Engineering

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21.

ZVS Operating Region of Multiresonant DC/DC Boost Conveter
Szychta, Elzbieta

Formato:	,
Enlaces:	Electromagnetic phenomena that occur during stable operation in resonant circuits of multiresonant ZVS boost converter are described, which can be applied in many fields of the needs of DC voltage electricity. The operating region of the converter is defined which…
Fecha:	2011-06-20
Recurso:	Advances in Electrical and Electronic Engineering

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22.

Irreversibility of Electrical Insulating Material Properties
Mentlik, Vaclav - Polansky, Radek

Formato:	,
Enlaces:	Property changes in electrical insulating materials that appear during repeated voltage stress (e. g. in an applied voltage test) are an often discussed problem. The voltage exposure leads to irreversible changes in a negative sense as this investigation clearly demonstrates.…
Fecha:	2011-06-20
Recurso:	Advances in Electrical and Electronic Engineering

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23.

Modelling of Disturbing Efects within Communication Channel for Safety-Related Communication System
Franekova, Maria; University of Zilina - Rastocny, Karol; University of Zilina

Formato:	,
Enlaces:	The aim of the paper is using of modelling within development of safety–related communication systems presented in the areas where guaranty of safety integrity level is required. In the paper basic principles used in the process of safety evaluation in…
Fecha:	2011-06-20
Recurso:	Advances in Electrical and Electronic Engineering

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24.

Multiprotocol Label Switching, Multiprotocol Label Switching
Schwartz, Ladislav - Trstensky, Dusan - Cepciansky, Gustav

Formato:	,
Enlaces:	The up to this time known networks with the IP protocol have worked as connection-less and they have not guaranteed the quality of services. Implementing the MPLS protocol, an overlay connection-oriented network with guaranteed quality of services QoS is being…
Fecha:	2011-06-20
Recurso:	Advances in Electrical and Electronic Engineering

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25.

Modelling the Load Torques of Electric Drive for Polymerization Process
Popenda, Andrzej

Formato:	,
Enlaces:	The problems of mathematical modelling the load torques on shaft of driving motor designed for applications in polymerization reactors are presented in the paper. The real load of polymerization drive is determined as a function of angular velocity. Mentioned function…
Fecha:	2011-06-20
Recurso:	Advances in Electrical and Electronic Engineering

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26.

Frequency and Trajectory Objects Evaluation in Frames Sequence
Koniar, Dusan; University of Zilina - Hargas, Libor; University of Zilina - Hrianka, Miroslav; University of Zilina - Spanik, Pavol; University of Zilina

Formato:	,
Enlaces:	Subject of submitted article is an analysis of moving objects in acquired video sequence. Region of interest is kinetics of Ciliated Respiration Epithelium. This analysis is very important for evaluation of medical diagnostics. The article describes image acquisition, preprocessing and…
Fecha:	2011-06-20
Recurso:	Advances in Electrical and Electronic Engineering

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27.

Image Deblurring – Wiener Filter Versus TSVD Approach
Bojarczak, Piotr; Radom University of Technology - Lukasik, Zbigniew; Radom University of Technology

Formato:	,
Enlaces:	This paper presents comparison study of two different deblurring methods: Wiener filter and TSVD decomposition. Wiener filter is a method giving the best results when variance of the noise incorporated in blurring process is known a priori. In TSVD decomposition…
Fecha:	2011-06-20
Recurso:	Advances in Electrical and Electronic Engineering

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28.

New ICT Trends in E-Health
Ciganek, Peter; University of Zilina - Pirnik, Rastislav; University of Zilina - Broncekova, Tatiana; University of Zilina

Formato:	,
Enlaces:	E-Health (electronic healthcare) is one of the priorities of eEurope action plan, which was created by European Union, to make Internet accessible for European Union inhabitants. To enable to use all eHealth possibilities and applications it is necessary to use…
Fecha:	2011-06-20
Recurso:	Advances in Electrical and Electronic Engineering

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29.

Generation of the Values of the Polynomial Function, Generation of the Values of the Polynomial Function
Prikopova, Anna - Hargas, Libor - Koniar, Dusan

Formato:	,
Enlaces:	The polynomial functions of the Galois´ finit field make up the base of original access to the solution to area logic control of technological processes with of the exploitation P systems. This article describes SW ways and means for determination…
Fecha:	2011-06-20
Recurso:	Advances in Electrical and Electronic Engineering

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30.

The Software-Based Implementation of the CFAR Reciever for the Processing of the Radar Signal
Gemzicky, Erik

Formato:	,
Enlaces:	The performance of a radar receiver is greatly dependent on the presence of noise. The receiver should achieve the constant false alarm rate (CFAR) and the maximum probability of the target detection. The CFAR receivers are usually used in radar…
Fecha:	2011-06-20
Recurso:	Advances in Electrical and Electronic Engineering

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31.

Experimental Analysis of Communitation Process of Power Semiconductor Transistor’s Structures
Spanik, Pavol; University of Zilina - Dobrucky, Branislav - Frivaldsky, Michal - Drgona, Peter - Lokseninec, Ivan

Formato:	,
Enlaces:	The paper deals with testing device designed for experimental examination of processes in power electronics devices during various switching modes is described. Through the use of auxiliary circuits additional switching modes (ZVS, ZCS) are realized except hard switching, and turning-off…
Fecha:	2011-06-20
Recurso:	Advances in Electrical and Electronic Engineering

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32.

Fail Detection of HV Machines Through Discharge Analysis – Focused on Transformers, Fail Detection of HV Machines Through Discharge Analysis – Focused on Transformers
Bujalobokova, Magdalena - Trnka, Pavel

Formato:	,
Enlaces:	High operational reliability of the power transformers is one of the most important features. Fast failure detection is the main aim. The power transformers producer faces the customer’s pressure not only for failure detection and prediction. Recently is also requested…
Fecha:	2011-06-20
Recurso:	Advances in Electrical and Electronic Engineering

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33.

Thermal Analyse sof Cross-Linked Polyethylene, Thermal Analyse sof Cross-Linked Polyethylene
Polansky, Radek

Formato:	,
Enlaces:	The paper summarizes results obtained during the structural analyses measurements (Differential Scanning Calorimetry DSC, Thermogravimetry TG, Thermomechanical analysis TMA and Fourier transform infrared spectroscopy FT-IR). The samples of cross-linked polyethylene cable insulation were tested via these analyses. The DSC and…
Fecha:	2011-06-20
Recurso:	Advances in Electrical and Electronic Engineering