Patrik Grznár

Dr. Patrik Grznár

University of Zilina
orcid

Research Focus & Metrics

Academic Career Length

12Years (2015-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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29 June 2020 in Applied Sciences
Verified
Journal Article
Open access
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Patrik GrznárPatrik Grznár
Patrik Grznár
MGMichal Gregor
Michal Gregor
Martin KrajčovičMartin Krajčovič
Martin Krajčovič
ŠMŠtefan Mozol
Štefan Mozol
MSMarek Schickerle
Marek Schickerle
TBTomáš Bielik
Tomáš Bielik
Current trends in manufacturing, which are based on customisation and gradually customised production, are becoming the main initiator for the development of new manufacturing approaches. New manufacturing approaches are counted as the application of new behavioural management patterns that calculate the retained competencies of decision-making by the individual members of the system agent; the production becomes decentralised. The interaction of the members of such a system creates emergent behaviour, where the result cannot be accurately determined by ordinary methods and simulation must be applied. Modelling and simulation will, therefore, be an integral part of the planning and control of the processes of factories of the future. The purpose of the article is to describe the use of modelling and simulation processes in factories of the future. The first part of the article describes new manufacturing concepts that will be used in factories of the future, with a description of modelling and simulation routing in the frame of Industry 4.0. The next section describes how simulation is used for the control of manufacturing processes in factories of the future. The included subsection describes the implementation of this suggested pattern in the laboratory of ZIMS (Zilina Intelligent Manufacturing System), with an example of a metamodeling application and the results obtained.

15 July 2021 in Sustainability
Verified
Journal Article
Open access
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Martin KrajčovičMartin Krajčovič
Martin Krajčovič
Gabriela GabajováGabriela Gabajová
Gabriela Gabajová
MMMarián Matys
Marián Matys
Patrik GrznárPatrik Grznár
Patrik Grznár
LDLuboslav Dulina
Luboslav Dulina
RKRobert Robert Kohar
Robert Robert Kohar
The article deals with the design of virtual reality (VR) interactive training as a teaching method and its effect on knowledge transfer and retention of students. The first part presents the methodology of the VR interactive training design. The second part utilizes the created interactive training for a case study to evaluate its effect on the teaching process and to examine the potential of VR interactive training as a sustainable teaching method. The study took place at the Department of Industrial Engineering, Faculty of Mechanical Engineering, University of Žilina. Volunteers were divided into two groups. The first group used VR interactive training as a teaching method, while the second group used the conventional method. Both groups then underwent tests. The main goal was to evaluate the effect of the VR interactive training on the teaching process in comparison to the conventional method while trying to identify the key elements of the VR interactive training design and its influence on knowledge transfer and retention in a sustainable learning environment. At the start of the case study, four hypotheses were formed, questioning the effect of interactive training on knowledge transfer and retention in the long and short term, and its overall influence on the teaching process. Obtained data were then used to evaluate these hypotheses.

7 March 2018 in MM Science Journal
Verified
Journal Article
Closed access
MFMiroslav Fusko
Miroslav Fusko
MRMiroslav Rakyta
Miroslav Rakyta
Martin KrajčovičMartin Krajčovič
Martin Krajčovič
LDLuboslav Dulina
Luboslav Dulina
MGMartin Gaso
Martin Gaso
Patrik GrznárPatrik Grznár
Patrik Grznár

10 July 2021 in Processes
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Journal Article
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Patrik GrznárPatrik Grznár
Patrik Grznár
Martin KrajčovičMartin Krajčovič
Martin Krajčovič
Arkadiusz GolaArkadiusz Gola
Arkadiusz Gola
LDLuboslav Dulina
Luboslav Dulina
Beáta FurmannováBeáta Furmannová
Beáta Furmannová
RSRadovan Svitek
Radovan Svitek
In the last decade, simulation software as a tool for managing and controlling business processes has received a lot of attention. Many of the new software features allow businesses to achieve better quality results using optimisation, such as genetic algorithms. This article describes the use of modelling and simulation in shipment and sorting processes that are optimised by a genetic algorithm’s involvement. The designed algorithm and simulation model focuses on optimising the duration of shipment processing times and numbers of workers. The commercially available software Tecnomatix Plant Simulation, paired with a genetic algorithm, was used for optimisation, decreasing time durations, and thus selecting the most suitable solution for defined inputs. This method has produced better results in comparison to the classical heuristic methods and, furthermore, is not as time consuming. This article, at its core, describes the algorithm used to determine the optimal number of workers in sorting warehouses with the results of its application. The final part of this article contains an evaluation of this proposal compared to the original methods, and highlights what benefits result from such changes. The major purpose of this research is to determine the number of workers needed to speed up the departure of shipments and optimise the workload of workers.

26 November 2019 in Sustainability
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Journal Article
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Gabriela GabajováGabriela Gabajová
Gabriela Gabajová
Beáta FurmannováBeáta Furmannová
Beáta Furmannová
IMIveta Medvecká
Iveta Medvecká
Patrik GrznárPatrik Grznár
Patrik Grznár
Martin KrajčovičMartin Krajčovič
Martin Krajčovič
RFRadovan Furmann
Radovan Furmann
The use of modern information and communication technologies plays a key role in the current global competitive environment of long-term manufacturing company sustainability. Based on the requirements of Slovak industrial companies (both domestic and foreign companies), there is a need to implement these technologies into the university teaching process. Therefore, this article describes virtual and augmented reality applications into the teaching process of Digital Factory module at the Industrial Engineering Department of the University of Zilina. The main aim of this study was to test and document how helpful immersive technologies could be in a teaching process. There were a group of students who took part in this study whose job was to assemble a specific assembly construction, first without the help of virtual technologies and second with the help of augmented and virtual reality. The results were collected through operation images and chronometry, these were then analyzed the conclusions stated in the article were obtained. In the conclusion, the final part of the article describes a general evaluation of virtual training use in the industrial practice of long-term industrial company sustainability.

1 January 2017 in Procedia Engineering
Verified
Journal Article
Open access
VVVladimír Vavrík
Vladimír Vavrík
MGMichal Gregor
Michal Gregor
Patrik GrznárPatrik Grznár
Patrik Grznár