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Aproximadamente 619 registro(s) hasta el momento: (journal)

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51.

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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52.

Increasing of RFID System Read Range
Vestenicky, Peter

Formato:	,
Enlaces:	This paper describes some computations needed to increase RFID system read range twice without any changes in RFID reader. The increasing of read range is done only by proper selection of RFID marker parameters – coil diameter and number of…
Fecha:	2011-06-22
Recurso:	Advances in Electrical and Electronic Engineering

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53.

Development and Analysis of Train Brake Curve Calculation Methods with Complex Simulation
Vincze, Bela - Tarnai, Geza

Formato:	,
Enlaces:	This paper describes an efficient method using simulation for developing and analyzing train brake curve calculation methods for the on-board computer of the ETCS system. An application example with actual measurements is also presented.
Fecha:	2011-06-22
Recurso:	Advances in Electrical and Electronic Engineering

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54.

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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55.

Safety of Transport Process
Zahradnik, Jiri - Janota, Ales

Formato:	,
Enlaces:	The paper deals with formulation of general rules and principles needed for ensuring safety of the transport process.
Fecha:	2011-06-22
Recurso:	Advances in Electrical and Electronic Engineering

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56.

Three Phase Soft Commutation Auxilary Resonant Pole Inverter
Sladecek, Vaclav

Formato:	,
Enlaces:	This paper covers the circuit modification of the power part of the inverter with auxiliary resonant poles utilising configuration of switches realised with routinely produced IGBT modules. Covered is also the control optimisation which goal is the minimisation of switching…
Fecha:	2011-06-22
Recurso:	Advances in Electrical and Electronic Engineering

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57.

Parameters Evaluation of PLC Dependability and Safety
Zdansky, Juraj - Rastocny, Karol

Formato:	,
Enlaces:	This paper is focused on evaluation of dependability and safety parameters of PLC (Programmable Logic Controller). Achievement of requested level of these parameters is an application assumption for using PLC in control of safety critical processes. Evaluation of these parameters…
Fecha:	2011-06-22
Recurso:	Advances in Electrical and Electronic Engineering

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58.

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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59.

ZnO Nanostructures Prepared by RF Sputtering
Flickyngerova, Sona - Tvarozek, Vladimir - Novotny, Ivan - Satka, Alexander - Sutta, Pavol

Formato:	,
Enlaces:	ZnO is shortly reviewed as significant material for nanotechnology. Sputtered ZnO thin films showed colummarpolycrystalline structure with preffered orientation in <002> direction, resistivity ~ 1 Wcm and optical bandgap Eg = 3,33 eV. Nanoclusters of Au and ZnO were formed…
Fecha:	2011-06-22
Recurso:	Advances in Electrical and Electronic Engineering

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60.

Calculation of S11 Parameter of Coplanar Strip and Influence of Technology Process
Heindl, Karel - Blecha, Tomas - Skocil, Vlastimil - Braun, Jaromir

Formato:	,
Enlaces:	The paper is focused on a calculation of the S11 parameter of the coplanar strips. The primary parameterscalculations of the coplanar strips are described in the first part. The scattering parameters are defined. The calculation of the S11 parameter and…
Fecha:	2011-06-22
Recurso:	Advances in Electrical and Electronic Engineering

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61.

Electric Power Systems - EMC
Kovacova, Irena - Kovac, Dobroslav

Formato:	,
Enlaces:	The paper is dealing with some electromagnetic compatibility (EMC) problems of converters and inverters, which are utilized for feeding of electric machines.
Fecha:	2011-06-22
Recurso:	Advances in Electrical and Electronic Engineering

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62.

A Parallel Approach to Fractal Image Compression,
Dedera, Lubomir

Formato:	,
Enlaces:	The paper deals with a parallel approach to coding and decoding algorithms in fractal image compressionand presents experimental results comparing sequential and parallel algorithms from the point of view of achieved bothcoding and decoding time and effectiveness of parallelization.,
Fecha:	2011-06-29
Recurso:	Advances in Electrical and Electronic Engineering

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63.

Operation Analysis of the Series-Parallel Resonant Converter Working above Resonance Frequency
Dzurko, Peter - Dudrik, Jaroslav

Formato:	,
Enlaces:	The present article deals with theoretical analysis of operation of a series-parallel converter working above resonance frequency. Derived are principal equations for individual operation intervals. Based on these made out are waveforms of individual quantities during both the inverter operation…
Fecha:	2011-06-22
Recurso:	Advances in Electrical and Electronic Engineering

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64.

On the Stability of Average Effective Wage Rate in Enterprise
Balciar, Andrej

Formato:	,
Enlaces:	In the article a model of the investment activity of an enterprise including financing of investment from new loans, from net profit and with the help of depreciation is designed. Equilibrium of average effective wage rate is defined and its…
Fecha:	2011-06-22
Recurso:	Advances in Electrical and Electronic Engineering

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65.

Quantum Structures and Category Theory
Fric, Roman

Formato:	,
Enlaces:	The methods and constructions of category theory are suitable tools for studying quantum structures and generalized probability. The aim of the present paper is to support our claim via several examples and to motivate further research in this area.
Fecha:	2011-06-29
Recurso:	Advances in Electrical and Electronic Engineering

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66.

Construction of Lukasiewicz Filters
Kalina, Martin - Havranova, Zuzana

Formato:	,
Enlaces:	The paper deals with Łukasiewicz filters, based on aggregating of weights. Some Łukasiewicz filters are constructed and conditions to be put on the values of the weights are given.
Fecha:	2011-06-22
Recurso:	Advances in Electrical and Electronic Engineering

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67.

Graphical Reprezentation of Atomic D-posets
Chovanec, Ferdinand - Drobna, Eva

Formato:	,
Enlaces:	In the present paper is shown a construction of D-posets using of the method of the MV-algebra pasting and their graphical representation by Haase and Greechie diagrams.
Fecha:	2011-06-29
Recurso:	Advances in Electrical and Electronic Engineering

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68.

T-Norm-Based Orderings on Y[0,1]n
Kyselova, Darina

Formato:	,
Enlaces:	In this paper we recall orderings based on t-norms, which could help to select the best suited decision procedure in many practical situations. We discuss several refinements of t-norm based orderings which break some of possible ties.
Fecha:	2011-06-22
Recurso:	Advances in Electrical and Electronic Engineering

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69.

Complex Model of Induction Heating - Demounting of Shaft Flange
Vlk, Rostislav - Krasl, Milan

Formato:	,
Enlaces:	This paper deals with exemplary solutions of one specifies problem of induction heating. This problem was partly determined by means of numerical method as a light-coupling problem. Numerical solutions were calculated with the help of professional programs (Ansys, Fluent, QuickField).…
Fecha:	2011-06-29
Recurso:	Advances in Electrical and Electronic Engineering

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70.

Investigation of Solar and Solar-Gas Thermal Energy Sources
Herec, Ivan - Zupa, Jan

Formato:	,
Enlaces:	The article deals with the investigation of solar thermal sources of electrical and heat energy as well as the investigation of hybrid solar-gas thermal sources of electrical and heat energy (so called photothermal sources). Photothermal sources presented here utilize computer-controlled…
Fecha:	2011-06-29
Recurso:	Advances in Electrical and Electronic Engineering

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71.

Management of Voltage Quality in Slovak Power System
Altus, Juraj; University of Zilina - Rapsik, Miroslav

Formato:	,
Enlaces:	The reqested voltage value is one of the main indicators of the delivered electric energy quality. The energy transfer system has to secure the good-quality electric energy deliveri for all consumers in the time when the electric energy market is…
Fecha:	2011-06-28
Recurso:	Advances in Electrical and Electronic Engineering

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72.

The Scanning of Power Deformation of Tyre Surface by Tactile Piesoresistive sensors
Hurta, Ferdinand

Formato:	,
Enlaces:	Our work describes a static non-destructive method of measuring the contact pressures of tyres. The distribution of contact pressures during the contact of the tyre with a solid base represents one of the indicators we use. In this process, it…
Fecha:	2011-06-29
Recurso:	Advances in Electrical and Electronic Engineering

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73.

, Control of Dynamics Systems Based on Q-learning
Filasova, Anna - Klacik, Juraj - Kasprisin, Jan

Formato:	,
Enlaces:	, The purpose of the paper is to present an algorithm for solving nonlinear systems control problem based on Q-learning,which is a model-free approach belonging to the adaptive critic family of designs and its advantage over other algorithms of thisfamily…
Fecha:	2011-06-29
Recurso:	Advances in Electrical and Electronic Engineering

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74.

Transition States of Telecommunication Network
Sulovec, Andrej - Cepciansky, Gustav

Formato:	,
Enlaces:	The dimensioning and performance of the telecommunication network take place according to the theory of teletrafficalways taking into account the stable state. But the utterance of the network being in an unstable state is less known. In this paper, wewould…
Fecha:	2011-06-29
Recurso:	Advances in Electrical and Electronic Engineering

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75.

Technology of Electronic Signatur
Schwartz, Ladislav - Trstensky, Dusan - Sadovsky, Jaroslav

Formato:	,
Enlaces:	An electronic signature uses a hash of message and an asymetrical algorithm of encryption for its generation. During verification of message on receiver side the hash of original message must be identical with the hash of received message. Electronic message…
Fecha:	2011-06-29
Recurso:	Advances in Electrical and Electronic Engineering

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76.

Biomedical Image Analysis by Program "Vision Assistant" and "Labview"
Izak, Peter - Hrianka, Miroslav

Formato:	,
Enlaces:	This paper introduces application in image analysis of biomedical images. General task is focused on analysis and diagnosis biomedical images obtained from program ImageJ. There are described methods which can be used for images in biomedical application. The main idea…
Fecha:	2011-06-28
Recurso:	Advances in Electrical and Electronic Engineering

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77.

Acoustoelectronics Devices with Surface Acoustic Waves
Nevesely, Miloslav

Formato:	,
Enlaces:	The principle of acoustoelectronic devices using surface acoustic waves (SAV) is as well as fabricated devices and their technical parameters described.
Fecha:	2011-06-29
Recurso:	Advances in Electrical and Electronic Engineering

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78.

Thermovision Diagnostic, Thermovision Diagnostic
Simko, Milan - Sebok, Milan - Chlupac, Milan

Formato:	,
Enlaces:	Paper deals with the problem of thermovission diagnostics and its application in some branches of industry., Paper deals with the problem of thermovission diagnostics and its application in some branches of industry.
Fecha:	2011-06-29
Recurso:	Advances in Electrical and Electronic Engineering

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79.

High Power Zero-Voltage and Zero-Current Switching DC-DC Converters
Dudrik, Jaroslav; Technická univerzita v Košiciach

Formato:	,
Enlaces:	The paper presents principles and properties of the soft switching PWM DC-DC converters. The attention is focused mainly on high power applications and thus the full-bridge inverters are used in DC-DC converters. Considerations are also given to the control methods…
Fecha:	2011-06-28
Recurso:	Advances in Electrical and Electronic Engineering

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80.

Modern Trends in Circuit Systems
Ticha, Dasa

Formato:	,
Enlaces:	Paper presents a overview of research in the field of interactive CCTV networks made at the Department of Telecommunication of the Faculty of Electrical Engineering of the University of Zilina. Some results, concerning theoretical and practical aspects of network planning…
Fecha:	2011-06-29
Recurso:	Advances in Electrical and Electronic Engineering

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81.

Complex Power Quality Evaluation of Electrical Energy in Electric Networks
Altus, Juraj; University of Zilina - Novak, Milan - Otcenasova, Alena - Pokorny, Michal

Formato:	,
Enlaces:	Power quality evaluation is in the scope of research activities carried out by the members of Department of Power Electrical Systems (KVES) for many years. Results presented in the paper are the outcomes of number of accomplished measurements and analyses.…
Fecha:	2011-06-29
Recurso:	Advances in Electrical and Electronic Engineering

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82.

Prediction of the Stochastic System Properties Using Genetic Identification
Kuliha, Rastislav; Žilinská univerzita - Spalek, Juraj; Žilinská univerzita

Formato:	,
Enlaces:	The article deals with the equation solutions for conditional probabilities determination. The number of variables in equation for correlation estimation could be reduced under the specific conditions. Stochastic system could be approximated by the mean values of the conditional probabilities…
Fecha:	2011-06-29
Recurso:	Advances in Electrical and Electronic Engineering

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83.

The New Implementation Possibilities for Electronic Logical Devices
Cuntala, Jozef - Sindler, Peter - Kondelova, Anna

Formato:	,
Enlaces:	This article deals with various technological approaches to realization of electronic logical devices. The accent is given on new possibilities of logic system implementation into single chip microelectronic devices designed on programmable and configurable basis.
Fecha:	2011-06-29
Recurso:	Advances in Electrical and Electronic Engineering

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84.

Numerical Methods
Maga, Dusan

Formato:	,
Enlaces:	Presented paper is based on authors experience on numerical methods of field solution, mostly magnetic. This paper, as the first one of prepared series, deals with mathematical apparatus and basic physical principles, as well as with possible short-comings or advantages…
Fecha:	2011-06-29
Recurso:	Advances in Electrical and Electronic Engineering

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85.

Future High Volume Applications of SAW Device
Nevesely, Miloslav

Formato:	,
Enlaces:	This paper examines the prospects for continuing market growth during the next 15 years by surveying both RF communications technology for systems which use or will use SAW devices. It is predicted that the SAW wireless label will be the…
Fecha:	2011-06-29
Recurso:	Advances in Electrical and Electronic Engineering

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86.

Biological Effects of Electromagnetic Field
Cabanova, Zuzana

Formato:	,
Enlaces:	Biological effects of electromagnetic field (EMF) are still under discussion. Some effects (negative and positive too) are not exactly clear. This paper is talking about possible biological effects and influences of EMF. One area of EMF applications is medicine and…
Fecha:	2011-06-29
Recurso:	Advances in Electrical and Electronic Engineering

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87.

Multimedial CD for an Education in Optical Communications,
Psanecky, Roman - Stanik, Miroslav

Formato:	,
Enlaces:	This article deals with an e-learning in optical communications. Ways of e-learning include learning by education software, multimedial CD and Internet on the www address http://fel.utc.sk/~psanecky/.An aim of multimedial CD development was to develop an didactic tools for the course…
Fecha:	2011-06-29
Recurso:	Advances in Electrical and Electronic Engineering

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88.

Dynamic Model of Two-Phase Permanent Magnet Synchronous Motor
Zaskalicky, Pavel - Zaskalicka, Maria

Formato:	,
Enlaces:	The paper deals with a new type of an electronically commuted two-phase salient pole permanent magnet synchronous motor for an industrial and household appliances. The motor is fed from a single voltage-source inverter with 2 phase rectangular output voltage. The…
Fecha:	2011-06-29
Recurso:	Advances in Electrical and Electronic Engineering

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89.

Connection between Transmission Quality Parametrs
Sulovec, Andrej

Formato:	,
Enlaces:	Errors occuring in digital transmission are the major source of degradation in that they affect voice services in terms of distortion of voice, and data type services in terms of lost or inaccurate information or reduces throughput. Therefore International Telecommunication…
Fecha:	2011-06-29
Recurso:	Advances in Electrical and Electronic Engineering

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90.

Mechatronical Aided Concept (MAC) in Intelligent Transport Vehicles Design
Pavlasek, Pavel

Formato:	,
Enlaces:	This article deals with the principles of synergy effect of mechatronical aided concept (MAC) to the design of intelligent transport vehicles products applying CA technologies and virtual reality design methods. Also includes presentation of intelligent railway vehicle development.
Fecha:	2011-06-29
Recurso:	Advances in Electrical and Electronic Engineering

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91.

Optimalization of IGBT Communication
Spanik, Pavol; University of Zilina - Feno, Ivan - Ovcarcik, Radovan

Formato:	,
Enlaces:	The paper presents IGBT switch off process in order to reduce power loss in the structure. The soft switching method using switch-off after current reduction is used. Process mentioned above is optimized to minimize the power loss that is determined…
Fecha:	2011-06-29
Recurso:	Advances in Electrical and Electronic Engineering

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92.

Economical Evaluation of GSM Gate Installation in ZU Private Telecom Network
Vaculik, Martin; University of Zilina - Jendrekova, Martina

Formato:	,
Enlaces:	This article deals with economical evaluation of GSM Gate, installed in Private telecom Network of University of Žilina. In present time, there is only one Gate installed in the Campus network Veľký diel. From the comparison of revenues can be…
Fecha:	2011-06-29
Recurso:	Advances in Electrical and Electronic Engineering

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93.

Analysis of the Influence of Commutation of Unidirectional Electric Machines on Telecommunication Devices
Poliak, Jan

Formato:	,
Enlaces:	Present time situation in the field of disturbing telecommunication devices is described in the preliminary chapters. The focus of the article is the description and results of the measurement of commutation demonstration on telecommunication devices with both measuring the emissions…
Fecha:	2011-06-29
Recurso:	Advances in Electrical and Electronic Engineering

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94.

Reliability of Telecommunication Systems by Various Repair Regime
Trstensky, Dusan - Schwartz, Ladislav - Trunkvalter, Milan - Bartos, Roman

Formato:	,
Enlaces:	In the past the reliability of the telecommunication systems was evaluated on the simple assumption of the independence of elements. Comuputation of steady - state series - system availability depends on specific assumptions made about the non failed items during…
Fecha:	2011-07-07
Recurso:	Advances in Electrical and Electronic Engineering

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95.

Computers and the Teaching of the Technical Subject
Ticha, Dasa - Bores, Petr

Formato:	,
Enlaces:	The contribution deals with the use of computers in the technical subject teaching. It shows more common view on the possibilities of the computer use. It also shows that there is a lin to concrete conditions of the use of…
Fecha:	2011-07-07
Recurso:	Advances in Electrical and Electronic Engineering

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96.

Technical Benefits of Tram Vehicle Energy Accumulator
Maciolek, Tadeusz - Drazek, Zbigniew

Formato:	,
Enlaces:	Energy saving effects connected with use of energy accumulator on board of tram vehicle instead of substation are presented. Differences in results regarding weak and strong power supply system when taking into account energy losses and energy recuperation are pointed…
Fecha:	2011-07-07
Recurso:	Advances in Electrical and Electronic Engineering

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97.

Features of Traction Transformer Windings Utilised as Inductances
Danzer, Jiri

Formato:	,
Enlaces:	The paper analyses features of traction transformer desing. Secondary windings of the transformer are utilized as a choke of an locomotive input filter at DC supplying system. Different ways of connections of the secondary windings coils are compared, reachable inductances…
Fecha:	2011-07-07
Recurso:	Advances in Electrical and Electronic Engineering

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98.

Powers of Traction Rectifier Substation of DC ELectric Railways 3kV
Palecek, Josef

Formato:	,
Enlaces:	The article states main principles of dimensioning of traction supply stations DC traction current system. it also provides detailed results of the traction rectifier substation Ostrava-Svinov load measurement. The measured valued are subsequently used for calculation of characteristic coefficients, whitch…
Fecha:	2011-07-07
Recurso:	Advances in Electrical and Electronic Engineering

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99.

Electrical Energy Quality Studies in 3 kV DC Electric Traction Systems for Different Schemes of Connection Traction Substation to Power Utility System
Mierzejewski, Leszek - Szelag, Adam - Jankowski, Pavel

Formato:	,
Enlaces:	The paper present aspects of DC electric traction system influence on electric energetic system. Study is based on modeling and simulation of electrified railway line. After simulation, there was performed analysis of energy quality, whitch using results of simulation and…
Fecha:	2011-07-07
Recurso:	Advances in Electrical and Electronic Engineering

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100.

Decentralised Power Active Filters
Roch, Marek - Dobrucky, Branislav - Hosny, Wada M.

Formato:	,
Enlaces:	This paper deals with a decentralised power active filter control based on the separated computation of reference current for each active filter operating under determinated harmonic frequency. The basic principle of such controlled active filter is explained. It is shown…
Fecha:	2011-07-07
Recurso:	Advances in Electrical and Electronic Engineering