Pavel Vazan - Academia.edu (original) (raw)
Papers by Pavel Vazan
Research Papers Faculty of Materials Science and Technology Slovak University of Technology
This paper deals with the light transport, photon trajectory and its radiation in tissue. A model... more This paper deals with the light transport, photon trajectory and its radiation in tissue. A model based on Monte Carlo simulation has been implemented in Matlab to get inside into photon interaction with tissue. The project is aimed to non-invasive pulse oximetry measurement of fetal oxygen saturation in the maternal abdomen. One of the fundamental challenges is to ensure a sufficient penetration depth which covers maternal and fetal tissue. This contribution investigates the photon trajectories and analyse the number of photons which stayed in tissue and their radiation distribution. The principle and photon propagation rules, needed for simulation, are presented in this article. Finally the results are compared with literature.
Nuclear Technology
In this paper, we develop a new method for determining the residual power of used nuclear fuel (U... more In this paper, we develop a new method for determining the residual power of used nuclear fuel (UNF). The method is based on the heat transfer analysis of UNF in a C-30 transport container with a KZ-48 compact storage cask. We compare the results achieved by the currently used SCALE 6 software packages based on nuclear physics calculations and the results from our method.
2016 IEEE 20th Jubilee International Conference on Intelligent Engineering Systems (INES), 2016
2016 IEEE 20th Jubilee International Conference on Intelligent Engineering Systems (INES), 2016
Ceciis 2008, Aug 27, 2008
The analysis of relevant standards and guidelines proved the lack of information on actions and a... more The analysis of relevant standards and guidelines proved the lack of information on actions and activities concerning data warehouse testing. The absence of the complex data warehouse testing methodology seems to be crucial particularly in the phase of the data warehouse ...
Applied Mechanics and Materials, Jan 13, 2012
The main objective of the project was to investigate the influence of the selected priority rules... more The main objective of the project was to investigate the influence of the selected priority rules of technological operations on chosen production goals. The paper presents the results of the project. The dynamic scheduling process of operations was simulated on the model of production system. The effect of each priority rule has been studied for different production goals in different stressful situations. The synthesis and the evaluation of results were performed by using mathematical and statistical methods. The multi-objective evaluations scoring method have been chosen by authors.
Advanced Materials Research, Apr 10, 2012
ABSTRACT In this paper, the effect of selected priority rules of scheduling is presented. This ef... more ABSTRACT In this paper, the effect of selected priority rules of scheduling is presented. This effect has been studied for chosen scheduling objectives by simulation method. The authors used the simulator Witness to experimentation with priority rules in a designed manufacturing system. The results of experiments have been processed into the synthesis of knowledge. The implementation of scheduling procedure is described in this paper.
Mathematical Problems in Engineering, 2015
The goal of this paper is to provide a mathematical threat modeling methodology and a threat risk... more The goal of this paper is to provide a mathematical threat modeling methodology and a threat risk assessment tool that may assist security consultants at assessing the security risks in their protected systems/plants, nuclear power plants and stores of hazardous substances: explosive atmospheres and flammable and combustible gases and liquids, and so forth, and at building an appropriate risk mitigation policy. The probability of a penetration into the protected objects is estimated by combining the probability of the penetration by overcoming the security barriers with a vulnerability model. On the basis of the topographical placement of the protected objects, their security features, and the probability of the penetration, we propose a model of risk mitigation and effective decision making.
Research Papers Faculty of Materials Science and Technology Slovak University of Technology, 2014
The paper presents the simulation study results of the traffic system in the city of Hlohovec. Th... more The paper presents the simulation study results of the traffic system in the city of Hlohovec. The authors describe the process of building the model in Witness 2013c simulator. The individual entities of simulation model are explained in details, as the Witness simulator is primarily suitable for manufacture or service simulation and not for traffic system simulation. The goal of this paper is to analyse the traffic system and to suggest the changes for improving the traffic in the city of Hlohovec. All proposed measures will bring about 20% improvement of traffic when compared to the current state.
2010 3rd International Conference on Advanced Computer Theory and Engineering(ICACTE), 2010
The article provides the general overview and base proposal of solution in the area of controllin... more The article provides the general overview and base proposal of solution in the area of controlling the IT resources within the company. It points out some common deficits of integrating systems and running data transfers. Lack of functionality in some large systems is supplemented by using interim database and proposed SQL processing prior to data loads. Interim database is also used for storing the import result status and log functionality.
Advances in Intelligent Systems and Computing, 2014
Advances in Intelligent Systems and Computing, 2014
2010 Second International Conference on Computer Research and Development, 2010
The today's determination of residual power of nuclear fuel in containers bases on differenti... more The today's determination of residual power of nuclear fuel in containers bases on differential equations, which describe the creation and the destruction of nuclides in the fuel. The Nuclear Regulatory of Slovak Republic requires the verification of present methodology alternatively. The new methodology and achieved results in determination of residual power of spent nuclear fuel by temperature measuring of the
Advances in Intelligent and Soft Computing, 2012
International Conference on Graphic and Image Processing (ICGIP 2011), 2011
The paper presents the simulation optimization as a good tool for solving many problems not only ... more The paper presents the simulation optimization as a good tool for solving many problems not only in research, but also in real praxis. It gives basic overview of the methods in simulation optimization. The authors also characterize their own experiences and they mention advantages and problems of simulation optimization.
Applied Mechanics and Materials, 2014
This paper presents design of portal that improves controlling of sales channel at initial condit... more This paper presents design of portal that improves controlling of sales channel at initial conditions. The customer needed to display key performance indicators on the portal and thus significantly improve the efficiency of business processes after the deployment of Microsoft Dynamics CRM 2011. The aim of this paper is to choose appropriate technology to create a portal and design possible architecture of solution. Microsoft Dynamics CRM 2011 with Web Application Microsoft SharePoint platform provide a solution for process control of business processes in company that is primarily offered like as the best solution. On the other hand, we found the possibility of open source content management system DotNetNuke, which meets customer's requirements and therefore, there is a possibility to reduce financial costs when selecting this system. Finally, we evaluated considered technologies, prepared more price variations of architecture and compared advantages and disadvantages of these ...
Applied Mechanics and Materials, 2014
The paper deals with the problem of simulation optimization and presents its usage for input cont... more The paper deals with the problem of simulation optimization and presents its usage for input control in a production system. The paper gives an overview of typical concepts of input control. Authors propose different approaches. The basic principles of simulation optimization are explained. A general procedure with each step is defined and this procedure is explained by an example. The solution is focused on the minimization of the production costs, which is included in the objective function. Realization of the simulation optimization is based on the combination of three different algorithms: Adaptive Thermostatistical Simulated Annealing, Random Solution and All Combination algorithm. The proposed procedure definitely leads to exact determination of input interval for given production system and short time period.
ipcsit.net
The aim of this article is to suggest the partial proposal of datawarehouse testing methodology.
Research Papers Faculty of Materials Science and Technology Slovak University of Technology
This paper deals with the light transport, photon trajectory and its radiation in tissue. A model... more This paper deals with the light transport, photon trajectory and its radiation in tissue. A model based on Monte Carlo simulation has been implemented in Matlab to get inside into photon interaction with tissue. The project is aimed to non-invasive pulse oximetry measurement of fetal oxygen saturation in the maternal abdomen. One of the fundamental challenges is to ensure a sufficient penetration depth which covers maternal and fetal tissue. This contribution investigates the photon trajectories and analyse the number of photons which stayed in tissue and their radiation distribution. The principle and photon propagation rules, needed for simulation, are presented in this article. Finally the results are compared with literature.
Nuclear Technology
In this paper, we develop a new method for determining the residual power of used nuclear fuel (U... more In this paper, we develop a new method for determining the residual power of used nuclear fuel (UNF). The method is based on the heat transfer analysis of UNF in a C-30 transport container with a KZ-48 compact storage cask. We compare the results achieved by the currently used SCALE 6 software packages based on nuclear physics calculations and the results from our method.
2016 IEEE 20th Jubilee International Conference on Intelligent Engineering Systems (INES), 2016
2016 IEEE 20th Jubilee International Conference on Intelligent Engineering Systems (INES), 2016
Ceciis 2008, Aug 27, 2008
The analysis of relevant standards and guidelines proved the lack of information on actions and a... more The analysis of relevant standards and guidelines proved the lack of information on actions and activities concerning data warehouse testing. The absence of the complex data warehouse testing methodology seems to be crucial particularly in the phase of the data warehouse ...
Applied Mechanics and Materials, Jan 13, 2012
The main objective of the project was to investigate the influence of the selected priority rules... more The main objective of the project was to investigate the influence of the selected priority rules of technological operations on chosen production goals. The paper presents the results of the project. The dynamic scheduling process of operations was simulated on the model of production system. The effect of each priority rule has been studied for different production goals in different stressful situations. The synthesis and the evaluation of results were performed by using mathematical and statistical methods. The multi-objective evaluations scoring method have been chosen by authors.
Advanced Materials Research, Apr 10, 2012
ABSTRACT In this paper, the effect of selected priority rules of scheduling is presented. This ef... more ABSTRACT In this paper, the effect of selected priority rules of scheduling is presented. This effect has been studied for chosen scheduling objectives by simulation method. The authors used the simulator Witness to experimentation with priority rules in a designed manufacturing system. The results of experiments have been processed into the synthesis of knowledge. The implementation of scheduling procedure is described in this paper.
Mathematical Problems in Engineering, 2015
The goal of this paper is to provide a mathematical threat modeling methodology and a threat risk... more The goal of this paper is to provide a mathematical threat modeling methodology and a threat risk assessment tool that may assist security consultants at assessing the security risks in their protected systems/plants, nuclear power plants and stores of hazardous substances: explosive atmospheres and flammable and combustible gases and liquids, and so forth, and at building an appropriate risk mitigation policy. The probability of a penetration into the protected objects is estimated by combining the probability of the penetration by overcoming the security barriers with a vulnerability model. On the basis of the topographical placement of the protected objects, their security features, and the probability of the penetration, we propose a model of risk mitigation and effective decision making.
Research Papers Faculty of Materials Science and Technology Slovak University of Technology, 2014
The paper presents the simulation study results of the traffic system in the city of Hlohovec. Th... more The paper presents the simulation study results of the traffic system in the city of Hlohovec. The authors describe the process of building the model in Witness 2013c simulator. The individual entities of simulation model are explained in details, as the Witness simulator is primarily suitable for manufacture or service simulation and not for traffic system simulation. The goal of this paper is to analyse the traffic system and to suggest the changes for improving the traffic in the city of Hlohovec. All proposed measures will bring about 20% improvement of traffic when compared to the current state.
2010 3rd International Conference on Advanced Computer Theory and Engineering(ICACTE), 2010
The article provides the general overview and base proposal of solution in the area of controllin... more The article provides the general overview and base proposal of solution in the area of controlling the IT resources within the company. It points out some common deficits of integrating systems and running data transfers. Lack of functionality in some large systems is supplemented by using interim database and proposed SQL processing prior to data loads. Interim database is also used for storing the import result status and log functionality.
Advances in Intelligent Systems and Computing, 2014
Advances in Intelligent Systems and Computing, 2014
2010 Second International Conference on Computer Research and Development, 2010
The today's determination of residual power of nuclear fuel in containers bases on differenti... more The today's determination of residual power of nuclear fuel in containers bases on differential equations, which describe the creation and the destruction of nuclides in the fuel. The Nuclear Regulatory of Slovak Republic requires the verification of present methodology alternatively. The new methodology and achieved results in determination of residual power of spent nuclear fuel by temperature measuring of the
Advances in Intelligent and Soft Computing, 2012
International Conference on Graphic and Image Processing (ICGIP 2011), 2011
The paper presents the simulation optimization as a good tool for solving many problems not only ... more The paper presents the simulation optimization as a good tool for solving many problems not only in research, but also in real praxis. It gives basic overview of the methods in simulation optimization. The authors also characterize their own experiences and they mention advantages and problems of simulation optimization.
Applied Mechanics and Materials, 2014
This paper presents design of portal that improves controlling of sales channel at initial condit... more This paper presents design of portal that improves controlling of sales channel at initial conditions. The customer needed to display key performance indicators on the portal and thus significantly improve the efficiency of business processes after the deployment of Microsoft Dynamics CRM 2011. The aim of this paper is to choose appropriate technology to create a portal and design possible architecture of solution. Microsoft Dynamics CRM 2011 with Web Application Microsoft SharePoint platform provide a solution for process control of business processes in company that is primarily offered like as the best solution. On the other hand, we found the possibility of open source content management system DotNetNuke, which meets customer's requirements and therefore, there is a possibility to reduce financial costs when selecting this system. Finally, we evaluated considered technologies, prepared more price variations of architecture and compared advantages and disadvantages of these ...
Applied Mechanics and Materials, 2014
The paper deals with the problem of simulation optimization and presents its usage for input cont... more The paper deals with the problem of simulation optimization and presents its usage for input control in a production system. The paper gives an overview of typical concepts of input control. Authors propose different approaches. The basic principles of simulation optimization are explained. A general procedure with each step is defined and this procedure is explained by an example. The solution is focused on the minimization of the production costs, which is included in the objective function. Realization of the simulation optimization is based on the combination of three different algorithms: Adaptive Thermostatistical Simulated Annealing, Random Solution and All Combination algorithm. The proposed procedure definitely leads to exact determination of input interval for given production system and short time period.
ipcsit.net
The aim of this article is to suggest the partial proposal of datawarehouse testing methodology.