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Aproximadamente 519 registro(s) hasta el momento: (journal)

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Recurso libre

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

Recurso libre

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

Recurso libre

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

Recurso libre

First-order Phase Transitions in Finite Systems I: Periodic Boundary Conditions
Medved, Igor

Formato:	,
Enlaces:	We briefly review rigorous results on the finite-size effect near first-order phase transitions at which a two-phase coexistence takes place. We consider a large class of statistical mechanical models in (hyper)cubic volumes with periodic boundary conditions at low temperatures. The…
Fecha:	2011-06-28
Recurso:	Advances in Electrical and Electronic Engineering

Recurso libre

Traps in Zirconium Alloys Oxide Layers
Frank, Helmar

Formato:	,
Enlaces:	Oxide films long-time grown on tubes of three types of zirconium alloys in water and in steam were investigated, by analysing I-V characteristic measured at constant voltages with various temperatures. Using theoretical concepts of Rose [3] and Gould [5], ZryNbSn(Fe)…
Fecha:	2011-06-28
Recurso:	Advances in Electrical and Electronic Engineering

Recurso libre

Determination of the Position of a Tectonic Dislocation in the Shape of a Line, which is Radiating Gamma Rays
Virdzek, Pavel - Bellan, Ivan - Sidor, Peter - Kostrova, Jela

Formato:	,
Enlaces:	In the present paper we describe a computation of the position of a tectonic dislocation in the shape of a line, which is radiating gamma rays. We derive the equation for dose rate as a function of the distance of…
Fecha:	2011-06-28
Recurso:	Advances in Electrical and Electronic Engineering

Recurso libre

Rhythmical Phenomena in Dermal Perfusion - Proved Assesment Strategies and new Discoveries
Huelsbusch, Markus; RWTH Aachen University - Blazek, Vladimir; RWTH Aachen University

Formato:	,
Enlaces:	The phenomena of rhythm fluctuation of arterial blood pressure were discovered already in the first continuous recordings in the 18th century. However the formation of such rhythms hasn’t been explained until now. This work presents two concepts which could aid…
Fecha:	2011-06-28
Recurso:	Advances in Electrical and Electronic Engineering

Recurso libre

Telemedical System for Monitoring of Blood Pressure
Fabian, Vratislav - Fejtova, Marcela

Formato:	,
Enlaces:	It is increasingly clear that the traditional way of measuring blood pressure in the clinic or office frequently produces numbers that grossly overestimate a patient’s true blood pressure level. This effect is often caused by so called „white coat“ syndrome.…
Fecha:	2011-06-28
Recurso:	Advances in Electrical and Electronic Engineering

Recurso libre

Modular Measuring System for Assesment of the Thyroid Gland Functional State
Rosik, Vladimir; Slovak academic sciences - Tysler, Milan; Slovak academic sciences - Svehlikova, Jana; Slovak academic sciences - Zdinak, Jaroslav; Slovak academic sciences

Formato:	,
Enlaces:	Distributed modular system BioLab for biophysical examinations enabling assessment of the thyroid gland functional state is presented in the paper. The BioLab system is based on a standard notebook or desktop PC connected to an Ethernet-based network of two smart…
Fecha:	2011-06-28
Recurso:	Advances in Electrical and Electronic Engineering

Recurso libre

10.

Explanation of Some Features of the Cardiovascular Control in Horses
Kozelek, Petr; Czech Technical University in Prague - Holcik, Jiri; Czech Technical University in Prague

Formato:	,
Enlaces:	Shortening of RR intervals is often associated with prolonging QT intervals in dynamic studies of the cardiovascular activity in horses. Causes of the relationship have not been explained neither in veterinary nor human medicine yet. Our simulation experiments explain that…
Fecha:	2011-06-28
Recurso:	Advances in Electrical and Electronic Engineering

Recurso libre

11.

Identification of Significant Features in Signals of Equine Cardiovascular System using ICA
Kohut, Martin; České vysoké učení technické v Praze - Holcik, Jiri; České vysoké učení technické v Praze - Hanak, Jaroslav; Veterinární a farmaceutická univerzita Brno - Kabes, Radovan; Veterinární a farmaceutická univerzita Brno

Formato:	,
Enlaces:	The paper deals with application of the Independent Component Analysis (ICA) for looking for causes of the sudden cardiovascular death in horses during surgery. The first chapter describes the solved problem and state of art. Next part describes the ICA…
Fecha:	2011-06-28
Recurso:	Advances in Electrical and Electronic Engineering

Recurso libre

12.

Linear Feedback Analysis of Cardiovascular System using Seismocardiogram
Holcik, Jiri; Czech Technical University in Prague - Smrcka, Pavel; Czech Technical University in Prague - Kohut, Martin; Czech Technical University in Prague - Jiřina, Marcel; Czech Technical University in Prague

Formato:	,
Enlaces:	The paper deals with an analysis of relationship between heart rate described by a sequence of cardiac interbeat intervals and mechanical activity of heart represented by a sequence of systolic forces. Both the quantities were determined from seismocardiograms recorded from…
Fecha:	2011-06-28
Recurso:	Advances in Electrical and Electronic Engineering

Recurso libre

13.

Utilization Possibilities of Multi-Agent Systems in Medicine
Lhotska, Lenka; České vysoké učení technické v Praze

Formato:	,
Enlaces:	The aim of the paper is to inform about existing medical applications of multiagent systems at foreign institutions and about the system for monitoring and diagnostics under development at the Gerstner Laboratory, Czech Technical University in Prague, Faculty of Electrical…
Fecha:	2011-06-28
Recurso:	Advances in Electrical and Electronic Engineering

Recurso libre

14.

Application of Hardware Desription Languages to Specification of the Point Module Interlocking Logic
Kawalec, Piotr; Warsaw University of Technology - Mocki, Jacek; Scott Wilson Kirkpatrick Co & Ltd

Formato:	,
Enlaces:	There is proposal to apply hardware description languages HDL in this paper to specify control movement devices in transport. Languages HDL, mainly used to design specialised programmable and reprogrammable digital devices, allow both simple and precise ways to describe functionality…
Fecha:	2011-06-28
Recurso:	Advances in Electrical and Electronic Engineering

Recurso libre

15.

J-A Hysteresis Model Parameters Estimation using GA
Zidaric, Bogomir; TECES - Miljavec, Damijan; Univerza v Ljubljani

Formato:	,
Enlaces:	This paper presents the Jiles and Atherton (J-A) hysteresis model parameter estimation for soft magnetic composite (SMC) material. The calculation of Jiles and Atherton hysteresis model parameters is based on experimental data and genetic algorithms (GA). Genetic algorithms operate in…
Fecha:	2011-06-28
Recurso:	Advances in Electrical and Electronic Engineering

Recurso libre

16.

New Possibility of Lines Power Flow Control
Altus, Juraj; University of Zilina - Novotny, Marek; University of Zilina - Rapsik, Miroslav

Formato:	,
Enlaces:	Present time is characteristic with increasing requests of consumers on the quality and quantity of delivered energy. In regard to financial and time difficulty of building up new power plants and distribution lines, producers and distributors must find out more…
Fecha:	2011-06-28
Recurso:	Advances in Electrical and Electronic Engineering

Recurso libre

17.

, Telemetry System of Biological Parameters
Spisak, Jan - Penhaker, Marek

Formato:	,
Enlaces:	, The mobile telemetry system of biological parameters serves for reading and wireless data transfer of measured values of selected biological parameters to an outlying computer. It concerns basically long time monitoring of vital function of car pilot.The goal of…
Fecha:	2011-06-28
Recurso:	Advances in Electrical and Electronic Engineering

Recurso libre

18.

, Telemetry Measurement of Selected Biological Signal Using Bluetooth Technology
Cerny, Martin - Penhaker, Marek

Formato:	,
Enlaces:	, This work treats of using the Bluetooth technology in biomedical engineering. The Bluetooth is used for transmission of measured data from pulse oximeter, ECG and monitor of blood pressure. OEM modules realize the devices for pulse oximetry and ECG.…
Fecha:	2011-06-28
Recurso:	Advances in Electrical and Electronic Engineering

Recurso libre

19.

Data Rates in EDGE Standard, Data Rates in EDGE Standard
Holly, Vladimir - Wieser, Vladimir

Formato:	,
Enlaces:	Several modulations and coding schemes are used to reach the effective radio resources usage in EDGE networks. The review describes these methods together with base stations interference and variable quality of signal impact to data rate and used coding scheme.,…
Fecha:	2011-06-28
Recurso:	Advances in Electrical and Electronic Engineering

Recurso libre

20.

Trends in Area of Safety Communications within Industrial Networks, Trends in Area of Safety Communications within Industrial Networks
Franekova, Maria; University of Zilina - Janota, Ales - Rastocny, Karol

Formato:	,
Enlaces:	The paper deals with the problems of safety communication in industrial networks for purpose of assurance of functional safety. It is intents on analysis of treats on industry networks and there is described recommended safety protections and their location into…
Fecha:	2011-06-28
Recurso:	Advances in Electrical and Electronic Engineering

Recurso libre

21.

Complex Simulation Model of Mobile Fading Channel
Marek, Tomas; Technical University of Zilina - Psenak, Vladimir; Siemens PSE, s.r.o - Wieser, Vladimir; Technical University of Zilina

Formato:	,
Enlaces:	In the mobile communication environment the mobile channel is the main limiting obstacle to reach the best performance of wireless system. Modeling of the radio channel consists of two basic fading mechanisms - Long-term fading and Short-term fading. The contribution…
Fecha:	2011-06-28
Recurso:	Advances in Electrical and Electronic Engineering

Recurso libre

22.

WCDMA Mobile Radio Network Simulator with Hybrid Link Adaptation
Wieser, Vladimir; Technical University of Zilina - Psenak, Vladimir; Siemens PSE

Formato:	,
Enlaces:	The main aim of this article is the description of the mobile radio network model, which is used for simulation of authentic conditions in mobile radio network and supports several link adaptation algorithms. Algorithms were designed to increase efficiency of…
Fecha:	2011-06-28
Recurso:	Advances in Electrical and Electronic Engineering

Recurso libre

23.

Optimal Dimensioning of Broadband Integrated Services Digital Network
Chmelikova, Zdenka

Formato:	,
Enlaces:	Tasks of this paper are research of input flow statistic parametres influence and parameters demands relating to VP (Virtual Path) or VC (Virtual Channel) dimensioning. However it is necessary to consider different time of flow arrival and differend time of…
Fecha:	2011-06-28
Recurso:	Advances in Electrical and Electronic Engineering

Recurso libre

24.

Remarks to Description of Index Guiding Photonic-Crystal Fibres, Remarks to Description of Index Guiding Photonic-Crystal Fibres
Kacik, Daniel - Turek, Ivan - Martincek, Ivan - Pudis, Dusan

Formato:	,
Enlaces:	Some properties of "index guiding photonics crystal fibres" do not correspond to this name. As it is shown in this paper, the influence of mechanical bending on the transfer function as well as the shape of their modal field documments…
Fecha:	2011-06-28
Recurso:	Advances in Electrical and Electronic Engineering

Recurso libre

25.

Hundres Years of Theory of Relativity, Hundres Years of Theory of Relativity
Franek, Jaroslav

Formato:	,
Enlaces:	In 2005, all civilised worl will remind the 100 years anniversary of Publishing the original work on special theory of relativity by Albert Einstein. This contribution is a brief review of its principial ideas in the field of electrodynamics., In…
Fecha:	2011-06-28
Recurso:	Advances in Electrical and Electronic Engineering

Recurso libre

26.

Material Nondestructive Evalution by Eddy Current Testing, Material Nondestructive Evalution by Eddy Current Testing
Marek, Tomas

Formato:	,
Enlaces:	Eddy current method is one of many methods of nondestructive testing. The aim of nondestructive testing is prevention of equipment breakdown without any impact on equipment operation. Especially breakdowns coused by hidden material defect from witch is equipment or part…
Fecha:	2011-06-28
Recurso:	Advances in Electrical and Electronic Engineering

Recurso libre

27.

Modern Electric Traction of Skoda Plzen Vehicles, Modern Electric Traction of Skoda Plzen Vehicles
Drabek, Jiri - Danzer, Jiri

Formato:	,
Enlaces:	The electric traction vehicle producting plant SKODA Plzen - Transportations develops and produces electric traction drives with the top technological niveau. Electric vehicles are delivered to transport institutions in Czech Republic as well as abroad. Many Ma, and PhD. graduates…
Fecha:	2011-06-28
Recurso:	Advances in Electrical and Electronic Engineering

Recurso libre

28.

X-Ray Diffractometry of Thin Layers - Possibilities and Problems
Zucha, Vladimir - Jackuliak, Quido

Formato:	,
Enlaces:	Efficieney of two deconvolution methods used in X-ray powder diffraction analysis is compared for thin films of Pd and Pt. The first method is the classical Stokes method and the second one is method of indirect deconvolution. But calculated integral…
Fecha:	2011-06-28
Recurso:	Advances in Electrical and Electronic Engineering

Recurso libre

29.

Geard-Ring and Charge Collection Efficiency of GaAs Detector
Perdochova, Andrea - Dubecky, Frantisek - Necas, Vladimir - Zatko, Bohumir

Formato:	,
Enlaces:	The study present the results of an experimental investigation focused on the inflence of guard-ring on detector charge collection. The tested detector is based on semi-insulating (SI) GaAs substrate with a base thinkness of 250 um, where the depletion region…
Fecha:	2011-06-28
Recurso:	Advances in Electrical and Electronic Engineering

Recurso libre

30.

Sims Characterisation of ZnO Layer Prepared By Pulsed Laser Deposition
Vincze, Andrej - Michalka, Miroslav - Bruncko, Jaroslav - Uherek, Frantisek

Formato:	,
Enlaces:	New material development requires new technologies to create and prepare basic material for semiconductor industry and device applications. Materials have given properties, which exhibit particulary small tolerances. One of the most important and promising material is recently ZnO. ZnO has…
Fecha:	2011-06-28
Recurso:	Advances in Electrical and Electronic Engineering

Recurso libre

31.

Complex Imaging of Photorefractive Records
Turek, Ivan - Tarjanyi, Norbert

Formato:	,
Enlaces:	Commonly used diffraction method of photorefractive effect investigation does not give the complete information about properties of photorectrative record. Thus, the legitimate assumption aries that such a way of investigation cannot register manifestation of the all-possible mechanisms contributing to formation…
Fecha:	2011-06-28
Recurso:	Advances in Electrical and Electronic Engineering

Recurso libre

32.

Orgin of Slag from Early Medieval Age Furnaces in Nitra
Dekan, Julius - Miglierini, Marcel - Stassikova-Stukovska, Danica

Formato:	,
Enlaces:	Two types of archaeological artefacts from remains of Early Medieval Age furnaces excavated in Nitra are analysed. They are supposed to originate from slag of glass and iron production. Employing Mossbauer spectrometry, iron crystallographic sites are identified and compared. In…
Fecha:	2011-06-28
Recurso:	Advances in Electrical and Electronic Engineering

Recurso libre

33.

Spectral Investigation of Laser Structures using NSOM Experiment
Pudis, Dusan - Kovac jr., Jaroslav - Kovac, Jaroslav - Martincek, Ivan - Gottschalch, Volker

Formato:	,
Enlaces:	We present for the first time the local spectral analysis of quantum well laser devices recorded in the near-field region. The distribution of mode spectra along and active region was scanned near-field scanning optical miecroscopy (NSOM). This experimental technique in…
Fecha:	2011-06-28
Recurso:	Advances in Electrical and Electronic Engineering

Recurso libre

34.

Nanotubes as Cold Cathode Elements
Janik, Jan - Vinduska, Peter - Marton, Marian

Formato:	,
Enlaces:	Several materials have been developed, investigated and have exhibited various emission properties following the intent to use them as cold cathodes. The most significant steps in the development of such materials were probably diamon/DLC thin films and nanotubes. these steps…
Fecha:	2011-06-28
Recurso:	Advances in Electrical and Electronic Engineering

Recurso libre

35.

First-Order Phase Transitions in Finite Systems II: Weak Boundary Conditions
Medved, Igor

Formato:	,
Enlaces:	We continue in our brief review of rigorous results on the finite-size effect near firt-order phase transitions with a two phase coexistence. We again consider the large class of statiscal mechanical models in (hyper)cubic volumes and at low temperatures that can…
Fecha:	2011-06-28
Recurso:	Advances in Electrical and Electronic Engineering

Recurso libre

36.

Behaviour of Human Hemodynamics under Microcavity –a Proposal for the 7th German Parabolic Flight Campaign
Blazek, Vladimir; RWTH Aachen University - Hülsbusch, Markus; RWTH Aachen University - Herzog, Markus; RWTH Aachen University - Blazek, Claudia R.; RWTH Aachen University - Gunga, Hanns Christian; Charité University Medicine - Kowoll, Rainer; Charité University Medicine - Fraszl, Waltraud; Charité University Medicine

Formato:	,
Enlaces:	All astronauts often feel uncomfortable during first encounter microgravity because of fluid shifts from the lower extremities to the head caused by weightlessness. Parabolic flights offer a great possibility for research of this phenomenon under “zero gravity”. With a combination…
Fecha:	2011-06-28
Recurso:	Advances in Electrical and Electronic Engineering

Recurso libre

37.

The Human Eye Position Control System in a Rehabilitation Setting
Nolan, Yvonne; National University of Ireland - Burke, Edward; National University of Ireland - Boylan, Clare; National University of Ireland - de Paor, Annraoi; National University of Ireland

Formato:	,
Enlaces:	Our work at Ireland’s National Rehabilitation Hospital involves designing communication systems for people suffering from profound physical disabilities. One such system uses the electro-oculogram, which is an (x,y) system of voltages picked up by pairs of electrodes placed, respectively, above…
Fecha:	2011-06-28
Recurso:	Advances in Electrical and Electronic Engineering

Recurso libre

38.

Noninvasive Identification of Ischemic Lesion in the Heart
Tysler, Milan; Slovak Academy of Sciences - Turzova, Marie; Slovak Academy of Sciences - Svehlikova, Jana; Slovak Academy of Sciences - Heblakova, Eva; Slovak Academy of Sciences

Formato:	,
Enlaces:	A method for noninvasive identification of heart lesions with changed repolarization caused by local ischemia was proposed and tested on a model and on a group of patients. It evaluates changes in QRST integral maps measured on a chest surface…
Fecha:	2011-06-28
Recurso:	Advances in Electrical and Electronic Engineering

Recurso libre

39.

Mapping of electrical potentials from the chest surface - preprocessing and visualization, Mapping of Electrical Potentials from the Chest Surface - Preprocessing and Visualization
Chudacek, Vaclav; CZECH TECHNICAL UNIVERSITY IN PRAGUE - Huptych, Michal; CZECH TECHNICAL UNIVERSITY IN PRAGUE - Lhotska, Lenka; CZECH TECHNICAL UNIVERSITY IN PRAGUE - Kittnar, Otomar

Formato:	,
Enlaces:	The aim of the paper is to present current research activity in the area of computer supported ECG processing. Analysis of heart electric field based on standard 12lead system is at present the most frequently used method of heart diseasediagnostics.…
Fecha:	2011-06-28
Recurso:	Advances in Electrical and Electronic Engineering

Recurso libre

40.

Long-Term EEG Records Analysis, Long-Term EEG Records Analysis
Rieger, Josef; České vysoké učení technické v Praze - Lhotska, Lenka; České vysoké učení technické v Praze - Krajca, Vladimir; Fakultní nemocnice Na Bulovce

Formato:	,
Enlaces:	This paper presents results of development of long-term EEG records analysis software and its application to real world coma signals. Due to the nature of coma signals, presented methods are also suitable for other types of signals (sleep and neonatal…
Fecha:	2011-06-28
Recurso:	Advances in Electrical and Electronic Engineering

Recurso libre

41.

Using of the Glucometers Serial Interface by Sightless People
Martinak, Lukas; VŠB - Technická univerzita Ostrava - Penhaker, Marek; VŠB - Technická univerzita Ostrava

Formato:	,
Enlaces:	Many of the personal diagnostic systems mainly glucometers (for measuring glucose) contain a serial interface for PC connection. Through this interface it is possible to receive useful data that will be used mainly for an attending physician’s purpose to evaluate…
Fecha:	2011-06-28
Recurso:	Advances in Electrical and Electronic Engineering

Recurso libre

42.

Radio Channel State Prediction by Kalman Filter, Radio Channel State Prediction by Kalman Filter
Ziacik, Peter - Wieser, Vladimir

Formato:	,
Enlaces:	In this article there is the description Kalman filter using as a radio channel state predictor. Simulator of prediction has been created in MATLAB environment and it is capable to simulate the prediction of radio signal envelope by Clark’s model…
Fecha:	2011-06-28
Recurso:	Advances in Electrical and Electronic Engineering

Recurso libre

43.

Classification of Voltage Dips in Distribution Networks, Classification of Voltage Dips in Distribution Networks
Lojek, Stefan - Otcenasova, Alena

Formato:	,
Enlaces:	Today is much attention paid to power quality, especially in deragulated electricity market. Voltage dips and short power supply interruptions are the most frequently problems in this area. Every voltage dip can be categorized in to the one of the…
Fecha:	2011-06-28
Recurso:	Advances in Electrical and Electronic Engineering

Recurso libre

44.

Numerical Methods - III, Numerical Methods - III
Maga, Dusan

Formato:	,
Enlaces:	This contribution deals with giving a possible most simplified view on one of the most frequently used numerical methods – Boundary Element Method (BEM). However, after reading the previous related papers the reader would be able to realize the adequate…
Fecha:	2011-06-28
Recurso:	Advances in Electrical and Electronic Engineering

Recurso libre

45.

Dynamic Model of the Universal Motor Supplied by a Harmonic Voltage, Dynamic Model of the Universal Motor Supplied by a Harmonic Voltage
Zaskalicky, Pavel - Dupej, Jan

Formato:	,
Enlaces:	In present article a dynamic model of universal motors, based on the measured data is developed. Suppose that the supply voltage is harmonic and motor operate in open circuit loop. After representing of the mathematical model a simulation model based…
Fecha:	2011-06-28
Recurso:	Advances in Electrical and Electronic Engineering

Recurso libre

46.

Technical Aspects of New Concentrating Solar Thermomechanic Conversion, Technical Aspects of New Concentrating Solar Thermomechanic Conversion
Herec, Ivan - Dostal, Zdenek - Zupa, Jan - Gresik, Stefan

Formato:	,
Enlaces:	The article concerns technical aspects of new concentrating solar thermo-mechanic conversion from the point of view of automated control algorithms of solar thermal motor working on a principle of modified Clausius-Rankin's thermal circulation. On the basis of the proposed algorithms…
Fecha:	2011-06-28
Recurso:	Advances in Electrical and Electronic Engineering

Recurso libre

47.

High Speed Downlink Packet Access in UMTS Network, High Speed Downlink Packet Access in UMTS Network
Psenak, Vladimir - Wieser, Vladimir

Formato:	,
Enlaces:	High speed downlink packet access added to UMTS network provides to users data speed up to 10 Mbit/s. The achievement of high data speed is possible due to new link management and link control, and also due to change from…
Fecha:	2011-06-28
Recurso:	Advances in Electrical and Electronic Engineering

Recurso libre

48.

Synthesis of Reliable Telecommunication Networks
Trstensky, Dusan - Schwartz, Ladislav - Trunkvalter, Milan - Bartos, Roman - Sadovsky, Jaroslav

Formato:	,
Enlaces:	In many application, the network designer may to know to senthesise a reliable telecommunication network. Assume that a network, denoted Gm,e has the number of nodes n and the number of edges e, and the operational probability of each edge…
Fecha:	2011-06-28
Recurso:	Advances in Electrical and Electronic Engineering

Recurso libre

49.

Dynamic Model of Reluctance Step Motor, Dynamic Model of Reluctance Step Motor
Zaskalicky, Pavel

Formato:	,
Enlaces:	Reluctance step motors are the electromechanical componets to engineering applications stems from their low cost, reliability and controllability. Because torque depends only on the square of the applied stator currents and not on their direction, these machines can be operated…
Fecha:	2011-06-28
Recurso:	Advances in Electrical and Electronic Engineering

Recurso libre

50.

Analyse of SF6 Properties in High-Voltage Equipments and its Optimal Utilization with Combination N2, Analyse of SF6 Properties in High-Voltage Equipments and its Optimal Utilization with Combination N2
Kudelcik, Jozef - Gutten, Miroslav

Formato:	,
Enlaces:	The fundamental characteristics and properties of SF6 and its mixtures with N2 and CO2 are given. Current wave-forms of initial stages of negative corona discharge formation in a short negative point-to-plane gap have been measured with nanosecond time resolution in…
Fecha:	2011-06-28
Recurso:	Advances in Electrical and Electronic Engineering

Recurso libre

51.

The Effect of Substitution of Fe By Co on Rapidly Quenched (FeCo)MoCuB Amorphous Alloys
Paluga, Marek - Mrafko, Peter - Svec, Peter - Janickovic, Dusan - Illekova, Emilia - Conde, Clara F.

Formato:	,
Enlaces:	(Fe1-xCox)79Mo8Cu1B15 amorphous alloys ware prepared in the form of ribbons by rapid quenching for x=0. 0.25 and 0.5. The effect of variation of Co/Fe ratio is analyzed with respect to the formation of amorphous state and to transformation of the…
Fecha:	2011-06-28
Recurso:	Advances in Electrical and Electronic Engineering

Recurso libre

52.

Performance of AlGaN/GaN Heterostructure Field-Effect Transistors for High-Frequency and High-Power Electronics
Kordos, Peter - Bernat, Jan - Heidelberger, Gero - Marso, Michel

Formato:	,
Enlaces:	Preparation and properties of GaN-based heterostructure field-effect transistors (HFETs) for high-frequency and high-power applications are studied in this work. Performance of unpassivated and SiO2 passivated AlGaN/GaN HFETs, as well as passivated SiO2/AlGaN/GaN MOSHFETs (metal-oxide-semicondutor HFETs) is compared. It is found…
Fecha:	2011-06-28
Recurso:	Advances in Electrical and Electronic Engineering

Recurso libre

53.

Conversion of Dielectric Data from the Time Domain to the Frequency Domain
Durman, Vladimir - Lelak, Jaroslav

Formato:	,
Enlaces:	Polarisation and conduction processes in dielectric systems can be identified by the time domain or the frequency domain measurements. If the systems is a linear one, the results of the time domain measurements can be transformed into the frequency domain,…
Fecha:	2011-06-28
Recurso:	Advances in Electrical and Electronic Engineering

Recurso libre

54.

Influence of Magnetic Field on Electric Charge Transport in Holomiun Thin Films at Low Temperatures
Dudas, Jan - Gabani, Stanislav - Kavecansky, Viktor - Vincze, Andrej

Formato:	,
Enlaces:	Holmium thin films were prepared by evaporation in ultrahigh vacuum (UHV) and high precision electrical resistance measurements were performed on them as well as on holomium bulk sample in the wide temperature range from 4,2 K up to the room…
Fecha:	2011-06-28
Recurso:	Advances in Electrical and Electronic Engineering

Recurso libre

55.

Normative Gait Databases in Praxis, Normative Gait Databases in Praxis
Majernik, Jaroslav - Simsik, Dusan

Formato:	,
Enlaces:	The gait analysis history brought a lot of methods and methodologies. It became a standard to collect data and create databases of human gait characteristics. One of the reasons is to derive standard deviations to be able compare patients’ data.…
Fecha:	2011-06-28
Recurso:	Advances in Electrical and Electronic Engineering

Recurso libre

56.

Assistive Technologies for Communication and Information, Assistive Technologies for Communication and Information
Simsik, Dusan - Galajdova, Alena - Dolna, Zlatica

Formato:	,
Enlaces:	Information and communication technologies (ICT) affect all aspects of life, in the time of technical progress there are also special assistive devices developed that makes the daily life easier. The use of the ICT is rapidly becoming an essential part…
Fecha:	2011-06-28
Recurso:	Advances in Electrical and Electronic Engineering

Recurso libre

57.

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

Recurso libre

58.

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

Recurso libre

59.

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

Recurso libre

60.

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

Recurso libre

61.

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

Recurso libre

62.

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

Recurso libre

63.

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

Recurso libre

64.

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

Recurso libre

65.

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

Recurso libre

66.

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

Recurso libre

67.

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

Recurso libre

68.

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

Recurso libre

69.

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

Recurso libre

70.

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

Recurso libre

71.

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

Recurso libre

72.

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

Recurso libre

73.

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

Recurso libre

74.

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

Recurso libre

75.

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

Recurso libre

76.

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

77.

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

78.

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

79.

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

80.

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

81.

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

Recurso libre

82.

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

Recurso libre

83.

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

Recurso libre

84.

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

Recurso libre

85.

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

86.

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

Recurso libre

87.

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

88.

Surface Effect on Three Phase Lines of Low-Ohmic Furnaces
Novak, Pavel

Formato:	,
Enlaces:	The article another option of using numerical method of elementary conductors in surface effect three-phase supply linesfor low-ohmic furnaces. Impedance asymmetry of three-phase supply lines of different conductor profiles and various spaceconfigurations is analysed following to the author`s article published…
Fecha:	2011-06-29
Recurso:	Advances in Electrical and Electronic Engineering

Recurso libre

89.

WDM in Courses of Communication Technologies
Filka, Miloslav - Bernkopf, Miroslav

Formato:	,
Enlaces:	This conference paper shows and demonstrates how modern technologies (such as WDM – Wavelength Division Multiplex) were introduced to students of Optical Networks lectured at Brno University of Technology, Faculty of Electrical Engineering and Communication, Dept. of Telecommunications.
Fecha:	2011-06-17
Recurso:	Advances in Electrical and Electronic Engineering

Recurso libre

90.

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

Recurso libre

91.

Science is a Part of the Culture
Turek, Ivan

Formato:	,
Enlaces:	The contribution points on relation between sciences and various aspects of the life of a society. The relation of physics and mathematics with technical disciplines is stressed. It is accented that technical education should be based on a mathematical and…
Fecha:	2011-06-29
Recurso:	Advances in Electrical and Electronic Engineering

Recurso libre

92.

Note on the Methodology of Measuring the Attenuation of Acustic Waves in Solid State
Sidor, Peter - Vajda, Drahoslav

Formato:	,
Enlaces:	The presented paper is a note on the methodology of measuring the attenuation of ultrasonic waves in the case of observation device not facilitating a direct measurement of the attenuation based on the definition of the ratio of amplitudes. Instead…
Fecha:	2011-06-29
Recurso:	Advances in Electrical and Electronic Engineering

Recurso libre

93.

Intermodal Interference as a Source of Information on Optical Fibres
Kacik, Daniel - Turek, Ivan - Martinecek, Ivan - Grendár, Drahomír

Formato:	,
Enlaces:	A basic description of intermodal interference which follows possibility investigation of intermodal interference in spectral and space region. There is also a brief description of equipments used for such investigation and some illustrations of obtained results. There is pointed in the…
Fecha:	2011-06-29
Recurso:	Advances in Electrical and Electronic Engineering

Recurso libre

94.

Four-Wave Mixing Aplication in Semiconductor Optical Amplifier
Odrobinak, Radoslav

Formato:	,
Enlaces:	Four-Wave Mixing (FWM) in semiconductor optical amplifiers is an attrative mechanism for wavelenght coversion in wavelenght-division multiplexed (WDM) systems since it provides modulation format and bit rate transparency over wide tuning ranges. A series of systems experiments evaluating several aspects…
Fecha:	2011-07-07
Recurso:	Advances in Electrical and Electronic Engineering

Recurso libre

95.

Diagnostics and Reconfiguration of Control Systems
Krokavec, Dusan - Filasova, Anna

Formato:	,
Enlaces:	This contribution summarizes some of the major trends, as well as real opportunities for the application of system fault diagnosis and reconfiguration control structures in automatic control systems. There are referenced ongoing concepts for residual generation, described design approaches in virtual reconfiguration…
Fecha:	2011-06-17
Recurso:	Advances in Electrical and Electronic Engineering

Recurso libre

96.

Mathematical Model of Thyristor Inverter Including a Series-parallel Resonant Circuit
Luft, Miroslaw; Technical University of Radom - Szychta, Elzbieta

Formato:	,
Enlaces:	The article presents a mathematical model of thyristor inverter including a series-parallel resonant circuit with theaid of state variable method. Maple procedures are used to compute current and voltage waveforms in the inverter.
Fecha:	2011-06-17
Recurso:	Advances in Electrical and Electronic Engineering

Recurso libre

97.

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

Recurso libre

98.

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

Recurso libre

99.

High-Freqeuncy Analysis of Three-Winding Autotransformers 400/121/34 kV
Gutten, Miroslav - Brandt, Martin - Polansky, Roman - Prosr, Pavel

Formato:	,
Enlaces:	This article deals with a description of methods of an experimental analysis concerning the actual condition of windings and magnetic circuit of the autotransformer, which is required in power transmission companies all over the world.
Fecha:	2011-06-17
Recurso:	Advances in Electrical and Electronic Engineering

Recurso libre

100.

Analysis of PMMT Operation for Renewable (PV/FC) Energy Source
Sul, Robert - Fibich, Peter - Frivaldsky, Michal

Formato:	,
Enlaces:	Utilization and construction of renewable energy sources require complexity of whole system. It is considered touse a set of devices that are necessary for energy conversion, accumulation, preparation and its distribution into electrical power supply network. The way of realization…
Fecha:	2011-06-17
Recurso:	Advances in Electrical and Electronic Engineering