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Found 5157 publications

Context dependent reconstructive communication

T. D. Gedeon L. T. Koczy

Publication Name: Isciii 07 3rd International Symposium on Computational Intelligence and Intelligent Informatics Proceedings

Publication Date: 2007-09-25

Volume: Unknown

Issue: Unknown

Page Range: 13-19

Description:

No description provided

Open Access: Yes

DOI: 10.1109/ISCIII.2007.367354

Analysis of RFId application through an automotive supplier's production processes

Petra Döbrössy Dorottya Mánik Lajos Tóth

Publication Name: Isciii 07 3rd International Symposium on Computational Intelligence and Intelligent Informatics Proceedings

Publication Date: 2007-09-25

Volume: Unknown

Issue: Unknown

Page Range: 177-181

Description:

The Department of Logistics and Forwarding at Széchenyi István University in Gyor, Hungary started a project in an automotive industry supplier company. The purpose of the project is to grow the efficiency of the production process. In order to achieve the target we should reorganized the IT system. During the research we had to take the special production circumstances and the already exist ad hock hformation system into consideration. The article adumbrates the course of the project shortly, the faults of the system, the own-developed new information system and represents how the human failures could be eliminated though RFId application. © 2007 IEEE.

Open Access: Yes

DOI: 10.1109/ISCIII.2007.367385

Fuzzy extension for Kano's model using bacterial evolutionary algorithm

J. Botzheim P. Földesi L. T. Koczy

Publication Name: Isciii 07 3rd International Symposium on Computational Intelligence and Intelligent Informatics Proceedings

Publication Date: 2007-09-25

Volume: Unknown

Issue: Unknown

Page Range: 147-151

Description:

For designing and developing products/services it is vital to know the relevancy of the performance generated by each technical attribute and how they can increase customer satisfaction. Improving the parameters of technical attributes requires financial resources, and the budgets are generally limited. Thus the optimum target is to achieve maximum customer satisfaction within given financial limits. Kano's quality model classifies the relationships between customer satisfaction and attribute-level performance and indicates that some of the attributes have a nonlinear relationship to satisfaction, rather power-function should be used. For the customers' subjective evaluation these relationships are not deterministic and are uncertain. This paper proposes a method for fuzzy extension of Kano's model and presents numerical examples that can prove the efficiency of bacterial evolutionary algorithm in as well. © 2007 IEEE.

Open Access: Yes

DOI: 10.1109/ISCIII.2007.367379

Heat treatment parameters effecting the fractal dimensions of AuGe metallization on GaAs

Csaba Dominkovics János Pipek L. Dobos Gábor Harsányi I. Mojzes Szilvia Nagy

Publication Name: Applied Physics Letters

Publication Date: 2007-08-24

Volume: 91

Issue: 7

Page Range: Unknown

Description:

Correlation was detected between the thermal treatment parameters of the AuGe-GaAs system and surface fractal structure. Structural entropic calculations were used to confirm the results obtained by fractal calculations. © 2007 American Institute of Physics.

Open Access: Yes

DOI: 10.1063/1.2768911

Measuring of the scalar hysteresis characteristic with a controlled flux density using analog and digital integrators

Tamás Ludvig Miklós Kuczmann Zoltán Pólik

Publication Name: Journal of Electrical Engineering

Publication Date: 2007-08-03

Volume: 58

Issue: 4

Page Range: 236-239

Description:

We have managed to build up a computer controlled system using National Instruments Data Acquisition card and National Instruments LabVIEW software package. First, the specimen under test has been simulated by the Jiles-Atherton model, but simulated measurements have been performed using LabVIEW functions. Our main goal now is to control the magnetic flux density during measurement by using a toroidal core with a feedback controller. In this paper, we show the developed procedure which is suitable for measurement of the hysteresis characteristics using analogue and digital integrators, and to control the waveform of the magnetic flux density determined from the induced voltage of the secondary coil wound on a toroidal core. Our experience is that the developed controller is robust. This work is an initial step to the future work on a vector hysteresis measurement system. © 2007 FEI STU.

Open Access: Yes

DOI: DOI not available

Localization in a Head-Related Transfer Function-based virtual audio synthesis using additional high-pass and low-pass filtering of sound sources

György Wersényi

Publication Name: Acoustical Science and Technology

Publication Date: 2007-08-02

Volume: 28

Issue: 4

Page Range: 244-250

Description:

Listening tests were carried out for investigating the localization judgments of untrained subjects through equalized headphones and with HRTF synthesis. The investigation was made on the basis of the former 'Graphical User Interface for Blind Persons' project in order to determine the possibilities of a 2D virtual sound screen and headphone playback. 50 untrained subjects evaluated a virtual audio display in front of the listener using different horizontal and vertical resolutions on a 2D surface. A listening test using white and filtered noise signals was followed by a special investigation using simple high-pass and low-pass filtering of the original sound in order to increase correct vertical localization judgments. The simulation uses high-pass filtering for higher elevations and low-pass filtering for lower elevations in a 5 × 2 and a 3 × 3 spatial resolution. Results of the listening test will be presented and the efficiency of the filtering in correct localization judgments will be discussed. © 2007 The Acoustical Society of Japan.

Open Access: Yes

DOI: 10.1250/ast.28.244

Measurement and control of scalar hysteresis characteristics

Miklós Kuczmann Zoltán Pólik

Publication Name: Pollack Periodica

Publication Date: 2007-08-01

Volume: 2

Issue: 2

Page Range: 27-37

Description:

A computer controlled measurement system based on National Instruments Data Acquisiton card and National Insturments Lab VIEW software package has been built. First, the hysteresis characteristics of the tested specimen have been simulated by Jiles-Atherton model, and simulated measurements have been performed using LabVIEW functions. This work is a preliminary study of LabVIEW and the measurement of hysteresis. The main goal is to control the magnetic flux density measured on a toroidal shaped core with a feedback controller. In this paper, the developed procedure, which is able to measure the hysteresis characteristics applying analogue and digital integrators, and to control the waveform of magnetic flux density determined from the voltage induced in the secondary coil wound on the toroidal shaped core is presented. The experience proves that the developed controller is stable and robust. This work is an initial step of the vector hysteresis measurement system. © 2007 Akadémiai Kiadó.

Open Access: Yes

DOI: 10.1556/Pollack.2.2007.2.3

Safety against bearing resistance failure of spread foundation using reliability method

Ádám Bukovics

Publication Name: Pollack Periodica

Publication Date: 2007-08-01

Volume: 2

Issue: 2

Page Range: 51-62

Description:

The aim of this research work is the analysis of the dimensioning of EC's of the vertical bearing structures of buildings, within the framework. In the beginning the bearing resistance of spread foundation is analyzed. The aim is to evaluate the method of EC-7 in the light of the safety to be demanded according to the current standard and reliability method. The current work describes the opportunity of determining this latter. © 2007 Akadémiai Kiadó.

Open Access: Yes

DOI: 10.1556/Pollack.2.2007.2.5

The effect of computer network errors on genetic algorithms

F. Hatwágner Andras Horvath

Publication Name: Pollack Periodica

Publication Date: 2007-08-01

Volume: 2

Issue: 2

Page Range: 3-12

Description:

Genetic algorithms are widely used in engineering, to solve nonlinear, multi-target optimization problems with multiple variables (e.g. optimization of geometry of flow domains, parameters of control systems). The parallelization of software using genetic algorithms is very important because in a typical practical problem they need huge computational power. Fortunately it is easy to implement a master-slave style parallelization. Our goal was to investigate the effect of random errors that can occur in a cluster of workstations on the efficiency of the genetic algorithm. © 2007 Akadèmiai Kiadó.

Open Access: Yes

DOI: 10.1556/Pollack.2.2007.2.1