Program of section Poster

Lectures

Posters

RefNr: 5 (Review state=accepted_lecture)

Victor Valeriu Patriciu and Silviu Petrescu:
Security Threats in Industrial Control Systems
Abstract

Specific network systems are widely used in critical infrastructures such as electric grid, natural gas, water, and wastewater industries. Distributed control systems (DCS) and supervisory control and data acquisition (SCADA) systems were developed to reduce labor costs, and to allow system-wide monitoring and remote control from a central location. Both governments and industry have recognized that SCADA, DCS and other process control networks (referred to as Industrial Control Systems ? ICS ? in this paper), are potential targets of attack from hackers, disgruntled insiders, cyber terrorists, and others who want to disrupt the critical infrastructure. This paper describes how current intrusion detection and cyber security monitoring products and services used in IT enterprise networks can provide early identification of attacks from the most common threat agents. Special emphasis is placed on how intrusion detection can serve as a compensating security control for the lack of security in field communications.

RefNr: 13 (Review state=accepted_poster)

Ing. Tibor VINCE, Assoc. Prof. Ing. Irena KOVÁČOVÁ, PhD.:
DISTANCE REMOTE OF MECHATRONIC SYSTEMS VIA INTERNET
Abstract

The article presents possibilities of distance remote of mechatronic systems via Internet. The Internet protocols divided by OSI model that can be used for controlling and regulations are discussed with final focusing on TCP and UDP protocols and comparing these protocols from the controlling point of view. The paper is analyzing advantages and disadvantage of using the Internet in different level of the existing levels in the information hierarchy and the delay time problem in communication via Internet. Design for dynamic compensation of Internet various time delays using Adaptive Traffic Smoothing is discussed too. The item contains also a few distance remote control system proposals.

RefNr: 20 (Review state=accepted_poster)

Machacek, Honc, Dusek:
EXPERIMENTAL IDENTIFICATION OF HYDRAULIC-PNEUMATIC PROCESS
Abstract

Paper deals with experimental identification of hydraulic-pneumatic process. Process consists of two pairs of water tanks, which have air spaces above water levels connected together by pneumatic volumes and valves. These pneumatic connections create cross coupling between both sections. Process has own electrical power unit for signal data processing, which is connected with Real-Time Toolbox MATLAB and the environment Simulink running on PC. Measured time and frequency responses were used for model parameters estimating. The model was in form of continuous time transfer function. Both models were verified and compared on measured step responses.

RefNr: 21 (Review state=accepted_poster)

Dusek, Honc:
Two-dimensional valve static characteristic
Abstract

This paper deals with mathematical description of steady state liquid flow through the valve. Flow is assumed to be depending on liquid pressure difference and valve opening ? two-dimensional valve static characteristic. Two methods for discharge coefficient  computing are used. The unknown parameters are determined from measured data by numeric optimization. Specific problem of used valve ? determination of manipulated variable range ? is mentioned.

RefNr: 31 (Review state=accepted_poster)

Daniel HONC, Robert HABER, Niels MANN:
MULTIVARIABLE PREDICTIVE CONTROL FOR MATRIX FRACTION MODELS
Abstract

Briefly theory and an illustrative example how to compute TITO GPC regulator are presented. An Integrated Controller Auto-Regressive Moving-Average (CARIMA) plant model is used. The control objective is accomplished by minimizing quadratic multistage cost function defined over the prediction horizon. If no constraints are considered an analytical solution is possible. GPC regulator is consequently transformed to the pole placement RST form.

RefNr: 41 (Review state=accepted_poster)

Neculai-Daniel Stoleru and Victor Valeriu Patriciu:
IMPROVING THE IMAGE WATERMARKING SCHEMES
Abstract

In the last few years the digital image watermarking techniques have gain a special interest in the cryptographic research. Many different models were developed and a number of commercial applications implementing such models can be already found on the market. We describe in the present paper the main characteristics of three well known image watermarking applications. Then we present a number of attacks that enable the removal of the information hidden in the watermarked images. Finally we present some research directions which could lead to the development of improved image watermarking applications.

RefNr: 42 (Review state=accepted_poster)

Gabriela Sochovičová, Marta Benková and Marcela Čarnogurská:
SWOT ANALYSIS AND CUSTOMER´S WINDOW
Abstract

In actual market environment each company must still verify his position. Most often it evaluate this position by SWOT analysis. Knowledge of strength and weakness company aspects, knowledge its opportunities and threats is in company realizing by internal arrangement. Every company but needs also downward information about it, as external environment - its customers look like this enterprise. For this sight is useful elaborate so-called ?customer's window?. The matrices with four quadrants introduce relation strength between general evaluation customer's satisfaction and consequence individual customer requests for oneself. It can be requirements to product quality, to their price, service, flexibility, etc. Comparison of the results obtaining from own SWOT analysis and results from customers arrange in "window" the company make possible respond dynamically and quickly at tendency scaling sign customer's dissatisfaction ? gap between customer expectation and their real fulfilling. Key words: customer window, strength, weakness, opportunities, threats, customer satisfaction

RefNr: 43 (Review state=accepted_poster)

Marta Benková, Ľubica Floreková, Gabriela Sochovičová and Marcela Čarnogurská:
CUSTOMER SATISFACTION INDEX AND HIS IMPORTANCE FOR ENTERPRISE´S COMPETITIVES
Abstract

Abstract: In presence measurement of customer's satisfaction with products is very important feedback information for both of interested sides. Actual customer conception is relatively extensive. The external customer evaluates not only product quality, but also his availability, price, clearable, length of life-cycle product. The internal customer, that is enterprise employee, evaluates his superior, his colleagues, especially with relation precedent ? process owner ? succedent. The enterprise evaluates his source suppliers for his activity, for those is too external customer another type. Different practices are employing for measurement of customer's satisfaction. However is necessary to extract an objective description out of the information, which is partially subjective. Then from this information is possible calculated Satisfaction Index, which is aggregating index. It incorporates different satisfaction attribute and their various importance. For Satisfaction Index application is needed know tendency his evolution, his dynamics. All off the accessory must be knowledgeable with Satisfaction Index results. Only, if those attributes are meeting, Satisfaction Index values can be efficacious inputs for appropriate arrangements to continuously improving problems in each enterprise. Key words: customer satisfaction index, external/internal customer

RefNr: 44 (Review state=accepted_poster)

Gabriela Bogdanovská, Ľubica Floreková and Beáta Stehlíková:
ECONOMICAL VIEW ON THE SIX SIGMA METHOD FOR PRODUCT QUALITY PARAMETERS DEVELOPMENT
Abstract

Abstract: By planning of target quality product parameters is usually expects, that growth of costs on prevention and on valuation assessment has influence decreasing cost on nonquality, in minimum nonconformance/ failure of product. This assumption expresses Crosby by well-known Zero Defect principle. Not every production is deterministic. Disagreement in product from statistical point of view introduces multiple casual effect. Existing number faults/ failures/ nonconformance, which has Gauss?s normal probability distribution. On multiple production decreasing variability in metrics/ parameters of quality products is technical possible till level 6 multiply of standard deviation "s" from target value. In practice it means that from one million realization of product will only 3,4 nonconformance, from the total price the costs for nonquality will only 1%. Decreasing level - multiplication standard deviation "s" of 1 unit means grow costs for nonquality by 10%. So: Decreasing of variability in target parameters of process/ products causes decreasing of cost of businesses. Key words: SIX SIGMA, ZERO DEFECT, COST ON QUALITY/ NONQUALITY

RefNr: 45 (Review state=accepted_poster)

Ľubica Floreková, Gabriela Bogdanovská and Marcela Malind?aková:
QUALITY, ENVIRONMENT AND SAFETY COMPETENCE EDUCATION
Abstract

Abstract: Educational of employees is bound on systematic increase and/ or changes qualification. For their qualification development all the employees must know: why, how and what they are supposed to do. Continuously development human resource is based on Japanese 3G approach: GEMBA- educational on tangible place, GEMBUTSU - educational in tangible condition, GEMJITSU - educational with tangible information. The Capability of the employee is bound on two levels. The level of knowledge?s (manageability, expertness) and the level of skills (leadership, personality). For the area of management of quality and/ or environment, also safety at workplace is needed systematic developing in education and training directly at firm (work based learning). However care about environment and health &safety at workplace is one part of the processes in the firm, the care can not be realized out of quality assurance (see Juran´s loop: development of the product, ....., product liquidation after finished his life-cycle). Receiving of the personal certificate for QMS according to ISO standards 9001:2000/ for EMS by ISO standards 14001:1996/ for HSMS by ILO standards OHSAS 18001:2001 is proof of competence of the keeper. Certificate consecutive permit in full scale observe principle "participation of all" (want and not have to) by creating management system. Great advantage is, that all these standard are created on the base of extended DEMING cycle base: (STUDY ? ANALYZE)- PLAN-DO- CHECK- ACT- (AMEND) and apply process approach to system management PDMAI (PLAN-DESING- MEASURE- ASSESS- IMPROVE). Key words: education, quality, environment, safety, competence, ISO standard

RefNr: 49 (Review state=accepted_poster)

Stehlíková Beáta, Floreková Ľubica, Benková Marta, Bogdanovská Gabriela:
Utilization of SCP/SQC methods for products quality metrics assessment
Abstract

By assurance and assessment of process are required some metrics and/or parameters of quality of products. These metrics and/or parameters of quality are well known as SPC/SCQ (Statistical Process, Quality Control) methods. Specific features, advantages and disadvantages, different information contents define each of this method. For assessment of metrics it is important to presume different approaches to compare them. It is possible to expect correct results, their interpretation and implementation for metrics improvement. 1. For one metric assessment has been utilized next methods: Standard statistical characteristics (average, standard deviation, coefficient of variability confidence interval) supplemented by box and whisker plot, one-sample t-test to evaluate target value. 2. Fitness Test by Pearson and Kolmogorov and Smirnov. 3. Shewhart?s Control Charts for average and range. 4. Capability Indices of Product.

RefNr: 59 (Review state=accepted_poster)

Marek LACIAK, Karol KOSTÚR, Martin JACO:
FEEDFORWARD CONTROL SYSTEM OF COKE-OVEN WITH CORRECTION MODEL
Abstract

The coke is produced from baking coal in coke-oven. The coke-oven consists from coal chambers in which the coal carbonizes on coke without air during 15-24 hours. Each coal chamber is heating by two neighbouring combustion chambers. The set of combustion chambers and coal/coke chambers is called a block. The coking plant usually consists of several blocks (A,B,C) and it is mixed by gas-heated. The mixing station mixes the blast-furnace gas and coke-oven gas. Then the mixed gas is distributed to blocks on coke and machinery side. Combustion of mixed gas is realized in 30 combustion chambers from the coke and machinery side. The volume flow of mixed gas depends on the output of the block and is regulated by a system of flap valves. The combustion of gas fuel in combustion chambers is the source of heat, which by conductivity proceeds to the coal in coke chambers. Combustion chambers are parallel with the coke chambers. The draft of combustion products from combustion chambers to the chimney is opposite to the gas flow from each side of each block and they are connected to the chimney.

RefNr: 73 (Review state=accepted_poster)

Ivo PETRÁ?, Ľubomír DORČÁK, Igor PODLUBNÝ, Ján TERPÁK and Paul O?LEARY:
IMPLEMENTATION OF FRACTIONAL-ORDER CONTROLLERS ON PLC B&R 2005
Abstract

This paper deals with the fractional-order controllers and their possible hardware realization based on PLC. The mathematical description of the fractional - order controllers and control algorithm in the discrete domain are presented. Numerical approximation of fractional order differentiation and integration is realized by Continued Fraction Expansion of Tustin trapezoidal rule. An example of realization of the particular case of digital fractional-order PID controller is shown and described. The hardware realization is based on the PLC B&R 2005. Some possibilities of the practical application of this type of controller and other approaches of the digital and analogue realization are also discussed in article.

RefNr: 80 (Review state=accepted_poster)

Henryk RUSINOWSKI, Wojciech STANEK, Jacek JAMBORSKI:
Regression model of a power boiler
Abstract

An empirical model of a power boiler has been formulated on the basis of recorded in a computer system operating measurements. In a operation period of a boiler stationary operation periods have been determined. Classification of boiler operation has been based on Page-Hinkley criteria. For each of determined operation periods heat calculations according to the norm DIN 1942 have been done what allowed to evaluate boiler energy efficiency and relative energy losses. 470 operating periods of a boiler have been taken into account in the calculations. The results of the calculations in determined periods of time has been used to identification of empirical functions which formulate dependences of heat outlet and incomplete combustion losses from exploitation parameters. A step-wise regression method has been applied in parameters estimation and for verification of assumed structure of empirical functions. The above method, on the basis of F-Snedecor test, enables estimation of parameters, choice of the most suitable structure of empirical functions and assessment of estimation uncertainty. In the final part of the paper the use of developed boiler empirical model in a energy diagnostic system of power unit will be presented.

RefNr: 81 (Review state=accepted_poster)

Jacek JAMBORSKI, Henryk RUSINOWSKI:
Algorithm of classification of operational states in energy processes
Abstract

Thermal processes proceeding in machines and energy facilities pertain to slow-running continuous processes. The continuous process may be found in steady or unsteady state. For processes nominally led in steady state the recognition of steady and unsteady states has the basic significance. In order to that, classification of the course of process variables has been carried out. This enables to determine the periods in which the course can be found as steady and the periods in which sudden change of moving average may occur. For realization of the above classification the GLR algorithm (Generalized Likelihood Ratio) based on Page ? Hinkley criteria has been applied. It is applied when average value of a signal after its change is not known. In the GLR algorithm detection of change of moving average of a signal value consists in calculating of decisive function value and its comparing with experimentally defined threshold value. In the final part of the paper examples of application of the GLR algorithm for classification of steady operation periods of heat-and-power and power units due to the course of electric power will be presented. The above classification is the source of information for identification of static models and operation control systems.

RefNr: 82 (Review state=accepted_poster)

Wojciech STANEK:
Modelling of the influence of operational parameters steam power plant upon the ecological effects of electricity production
Abstract

The unfavourable ecological effects of production of electricity results mainly from depletion of non-renewable fossil fuels as well as from rejection of harmful substances to natural environment. Both of mentioned effects leads to depletion of non-renewable natural resources. Accepting exergy (defined as maximum ability to perform work in real natural environment) as a measure of quality of natural resources the unfavourable ecological effects can be evaluated by means of thermoecological cost which is defined as cumulative exergy consumption of non-renewable resources burdening fabrication of useful product (for example electricity). The influence of electricity generation upon depletion of natural resources depends on operational parameters of power plant such as load, fuel quality, regime of operation of feed water regeneration system, ambient temperature, air excess ratio etc. Basing on operational data from measurement system of real power unit the empirical characteristics of power unit has been derived using step-wise regression. Such an empirical model is used for the simulative calculations of influence of main operational parameters of power unit upon thermoecological cost of electricity production.

RefNr: 85 (Review state=accepted_poster)

Janacova Dagmar, Kolomaznik Karel, Vasek Vladimir:
OPTIMIZATION OF LIQUIDS CONSUMPTION AT WASHING TANNING PROCESSES
Abstract

Most of the operations, in which the raw hide is conversed into leather, are realized in the tanning drum. From the point of view of chemical kinetics it is a heterogeneous reaction realized in tanning drum. Every heterogeneous reaction is related to the transport process and tanning operations are not the exception. The key (control) step concerning the reaction speed is the reactants diffusion almost at all physico-chemical processes realized in the tanning drum. The main part of operating costs connected with the consumption of active aqueous solutions, eventually technological wash water, depends on the operating time, which simultaneously determines the consumption of electrical energy necessary to the drum drive (move). The bigger liquid consumption, the bigger gradient of diffusive components concentration and the bigger decrease of operating time needed for the achievement of required level of the solid phase conversion (leather, raw hide). The result of mentioned consideration is the minimum main part of operating costs in their dependence on the liquid consumption. Our task is to estimate this minimum and to compare the result with real process.

RefNr: 86 (Review state=accepted_poster)

Pavel HOROVČÁK and Ivo PETRÁ?:
EXTERNAL REFERENCES IN XML WITH PHP
Abstract

The contribution deals with the solution and problems of external text references in XML in development environment PHP. It specifies the entity concept, its internal and external references. The problems of external references are investigated at two XML files interconnected by external reference. For this task two PHP scripts are used based on SAX and DOM interface. The results are tested by means of various browsers (IE, Gecko, and Opera). There are verified possibilities and background of external reference solution in PHP environment for versions 4.3.9 and 5.0.2.

RefNr: 95 (Review state=accepted_poster)

Dorin Sendrescu, Constantin Marin:
IDENTIFICATION OF A CLASS OF NONLINEAR SYSTEMS
Abstract

In this paper the problem of nonlinear systems identification is analysed. The identification problem is formulated in function spaces based on derivative operators. The identificability is presented as a condition to vanish a continuous time function. All these aspects are formulated in the distribution framework. Some applications of the nonlinear system identification based on distributions are developed in this paper.

RefNr: 98 (Review state=accepted_poster)

Karel Perutka & Martin Tomastik:
COMPUTER AIDED EDUCATION: SUPPORT OF SUBJECT TAUGHT BY OUR DEPARTMENT
Abstract

This paper deals with the goal on a long term basis trying to fill in the lack of more extensive educational materials supporting the teaching and study of MATLAB in Czech language. The practical experience of teaching MATLAB leads us to revise existing materials supporting education, especially the commented programs. Simple examples of such programs exist, but more complex examples are needed, too. Some students of bachelor study programs at our institute were interested in to cooperate on project of supportive programs creation trying to explain basic commands of MATLAB using them in combination with the graphical interface or to create simple games in MATLAB to make the first steps in MATLAB programming more attractive. During the last semester, some of interesting programs were created and some of them are described in this paper. The main task of this paper is to inform about the project and maybe to get more people to cooperate on this.

RefNr: 100 (Review state=accepted_poster)

Pavel HOROVČÁK and Ján TERPÁK:
XML PARSING AND PROCESSING WITH PHP
Abstract

Parsing and processing of XML is one of the most actual today?s tasks. PHP technology as one of the most popular script languages launches now a version 5 with many improvements namely in XML processing area. Typical is its transition to object orientation. There are in PHP5 four interfaces for XML processing ? SAX, DOM, XPath and SimpleXML. The contribution deals with possibilities of their application to XML file analysis as well as its modification. Advantages and disadvantages of object and event based interfaces are discussed.

RefNr: 101 (Review state=accepted_poster)

Ján TERPÁK, Ľubomír DORČÁK, Ivo PETRÁ? and Rastislav ČEČKO:
SUPPORTING SOFTWARE FOR CHEMICAL PROCESSES MODELLING
Abstract

The paper deals with software design for supporting chemical processes modelling. Basic of the analysis technological processes and of the synthesis control of technological processes is mathematical model. For chemical process modelling are needed data at individual substance and software for calculations chemical thermodynamics and kinetics. The paper describes data structure, realization data processing and completes data from various source to the consistent databases assessment in XML format. It describes classes library in C++ language which supports thermodynamics and kinetics calculations. Solution result is application for processing and imaging data, analysis chemical process etc. Classes library is possible to connect to generation models.

RefNr: 142 (Review state=accepted_poster)

Imrich KO?TIAL, Ján TERPÁK, Ján MIKULA:
BEHAVIOURAL MODELLING OF COMPLEX THERMAL SYSTEMS
Abstract

Presented paper describes unified approach to the design of thermal apparatus based on hierarchical process modelling. The design process is described as mapping from specification level into component level. The specification model, processing model and architectural model is characterised. Elementary models can be specified on different hierarchical levels. Their synthesis is based on unified approach. Developed modelling system was applied for design and optimisation of thermal treatment of granular material.

RefNr: 148 (Review state=accepted_poster)

Gabriel Tréfa, Peter Korytko, Marek Laciak:
INTERMIX COMPUTER PREDICTION MODEL
Abstract

This article deals with abilities of the InterMix Computer Prediction Model development under conditions of the U. S. Steel Ko?ice. Continuous casting technology is characterized by casting of several heats in sequence without casting interruption. During continuous casting you may connect heats with a various chemical composition of liquid metal. As a consequence of mentioned operation, transitory (intermix) areas of chemical composition between connected neighboring heats are generated. In order to solve the problem without undesirable events accompanying conventional sampling we consider another way of solution: to develop and apply convenient InterMix Computer Prediction Model. If the model works with high accuracy, its application would save operational time and costs for conventional sampling without affection of intermix slabs identification and processing in addition to the main role that the model should play: to ensure guaranty of final products quality and to reduce extended ?intermix production? costs.

RefNr: 151 (Review state=accepted_poster)

Mircea PREDA and Dan POPESCU:
Integrating Reinforcement Learning and Logical Programs into an Adaptive Recommender System
Abstract

The online recommendations are a popular presence in theWeb sites world due to their potential to increase the customers satisfaction, to boost the revenues and to reduce the operational costs. This paper presents a recommender system based on reinforcement learning. The system represents concepts presented on Web site by logical programs and uses a similarity measure between programs in order to facilitate generalization. A prototype of this system was implemented and its performances were proved to be compatible with another recommender system from same class but it has the advantage of a more understandable representation of the ontological knowledge.

RefNr: 153 (Review state=accepted_poster)

Dániel Szegő:
A network model for DFBHD
Abstract

This paper covers a new approach for intelligent network modelling. The approach is based on a simple modal logical formalism, providing a pure theoretical approach with well-defined formal semantics. With the help of the proposed approach models for different style of networks can be easily built by simply monitoring the network traffic. The approach is primarily being tested by building a network model for DFBHD interactive software.

RefNr: 172 (Review state=accepted_poster)

Albert FAZAKAS, Mihaela CÎRLUGEA and Lelia FEŞTILĂ:
Applying Offset Voltage Canceling Method To a Bipolar Current Conveyor with Enhanced Biasing
Abstract

In this paper, considerations about reducing offset voltage to a bipolar current conveyor structure are presented. The method for reducing the offset voltage proposed in the literature is applied to an enhanced high-speed current conveyor structure, and offset voltage canceling conditions are determined. Finally, simulation results of the proposed structure are presented to highlight the improvements made.

RefNr: 183 (Review state=accepted_poster)

Mihaela CÎRLUGEA, Albert FAZAKAS and Lelia FEŞTILĂ:
Pspice Goal Functions Applied To Model Characteristics Representation
Abstract

The Pspice goal functions, also called measurements, are useful collections of search commands performed on the plotted data. In this paper their possibility of application in model characteristics representation is presented. An example is made for bipolar junction transistor collector-base parasitic capacitor representation. A method of representing parameters that depend on the collector current is also presented. The use of goal functions overcomes to the disadvantage of Parts, the OrCad Model Editor that does not allow model comparison nor data navigation possibility.

RefNr: 193 (Review state=accepted_poster)

Ľubomír DORČÁK, Ján TERPÁK, Ivo PETRÁ?, Jaroslav PROKOP, Viktor ZÁBAVNÍK, Stanislav ZELENÝ, Du?an GALAJDA, Ladislav DADEJ:
MODELS FOR MONITORING OF THE LIQUID STEEL TEMPERATURE IN THE LADLE AND TUNDISH
Abstract

copy of paper 113

RefNr: 208 (Review state=accepted_lecture)

Tomasz KUŹMIEROWSKI Franciszek SIEMIENIAKO:
CONTROL SYSTEM OF THE MECHATRONICS AEROSTATIC PLANAR DRIVE
Abstract

Article presents construction and control system of the mechatronics aerostatic planar drive made of Ruchservomotor with internal measuring system of position based on Hall sensor. It was described construction of collector card UC48 the co-operating from presented drive and talk over the entrance signal and algorithms with high and low-end control commands

RefNr: 223 (Review state=accepted_poster)

Szega Marcin:
COMPARISON OF METHODS OF ANALYSIS OF THE QUALITY OF MEASURED DATA IN THE DATA VALIDATION ALGORITHM
Abstract

The validation of measurements is an indispensable element of modern control systems of the operation of thermal installations. The algorithm of validation of measurement data is based on least squares adjustment method according to the criterion of maximizing the reliability function of measurements. The application of the least squares adjustment method for the validation of measurements makes it also possible to control the assumed accuracy of measurements. Control of the quality of measured data using data validation algorithm is based on algorithms of direct analysis of measured data corrections. Such algorithms take advantages of results of reconciliation calculations. Example reconciliation calculations concerning mass and energy balances of high-pressure heat regeneration system of 370 MW power unit have been worked out. Basing on obtained results of calculations the methods of direct analysis of measured data corrections have been presented. The final conclusions concerning the comparison of described methods have been formulated.

RefNr: 228 (Review state=accepted_poster)

stván AJTONYI, László ORMOS, Áron BALLAGI, Dániel MARKOVICS:
NEW GENERATIONS OF DCS SYSTEMS
Abstract

globalization has led to increased competition among manufacturers, resulting in restructuring and fewer competitors. This competition has reinforced the importance of achieving a strategic advantage through increased added value. Coordinated support is now the key to both manufacturing and business assets having a common focus. This coordination requires a clear understanding of how resources are to be deployed and optimized.

RefNr: 233 (Review state=accepted_poster)

Zoltán GÁRDUS, Tihamér ÁDÁM:
WALL-SIMULATION FOR INTERMITTENT-RUNNING FURNACES
Abstract

The speedy increace in energy costs which nearly reaches an annual 25 %, has induced designers, producers and operators to develop light, fire-proof and at the same time heat-insulating materials with low bodydensity which reduce the wall-losses and the heat stored in the walls. Thus the right way to design and carry out the lining material of the walls of the new furnaces is to use these light, fire-proof and heat-insulating materials.

RefNr: 237 (Review state=accepted_poster)

Péter Serfőző, Prof. Wim Böhm, Prof. Sanjay Rajopadhye:
SA-C IMPLEMENTATION OF THE MOJETTE TRANSFORM AND INVERSE MOJETTE TRANSFORM ALGORITHM
Abstract

Mojette transform (MoT) is an exact discrete Radon transform defined for a set of specific projections. The MoT is used for several image processing applications like image transmission, image watermarking, etc.) The paper describe the development work to create SA-C programme package for computing Mojette Transform (MoT) and Inverse Mojette Transform (IMoT).

RefNr: 238 (Review state=accepted_poster)

Attila VARGA, Dr. János KOVÁCS:
INCONSISTENCY OF TELECOMMUNICATION QUALITY
Abstract

If we want to determine quality of an audio-visual transfer, e.g. CaTV channel, than we can do it with subjective measuring algorithm yet. But the subjective methode might have inconsistent results. In this article I will present an algorithm to reduce inconsistency based on probability calculations[3][4][5]. First I will go an some results of probability calculations, later on recommendation of voice and video quality measurement, finaly I will take an offer for measuring the quality of a TV channel.