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Prof. Marian Sofranko
Technical University of Kosice, Faculty of Mining, Ecology, Process Control and Geotechnologies, Institute of Earth Resources, Slovakia

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0 Mining Exploration
0 Safety Analysis
0 Risk Analysis And Evaluation
0 Mining Practices and safety

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Conference paper
Published: 03 August 2021 in 5th EAI International Conference on Management of Manufacturing Systems
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Warehousing of goods is one of the most important subsystems of the logistics system in a company. An important parameter of a warehouse is the warehouse capacity. The paper deals with the problem of increasing the warehouse static capacity of a selected warehouse. In the paper, the four variants of increase will propose Elimination of the widest aisle (Proposal A1 5.4% capacity increase and Proposal A2 14.5% capacity increase), Decrease of the current rack cell height (Proposal B 33% capacity increase), and Exchange of handling equipment (Proposal C 43% capacity increase). The case study was carried out for the warehouse of returnable packaging in the manufacturing company. Increasing the warehouse static capacity, hereinafter referred to as capacity, was carried out for an enterprise that plans to increase its production by 25%. This will have an impact on the warehousing process in the company. The company uses several types of returnable packaging—plastic boxes, according to customer requirements. A warehouse for returnable packaging is designed to get packages as quickly as possible to the production line.

ACS Style

Samer Khouri; Janka Saderova; Andrea Rosova; Michal Cehlar; Marian Sofranko. Methods of Increasing Warehouse Capacity in an Enterprise: Case Study. 5th EAI International Conference on Management of Manufacturing Systems 2021, 295 -303.

AMA Style

Samer Khouri, Janka Saderova, Andrea Rosova, Michal Cehlar, Marian Sofranko. Methods of Increasing Warehouse Capacity in an Enterprise: Case Study. 5th EAI International Conference on Management of Manufacturing Systems. 2021; ():295-303.

Chicago/Turabian Style

Samer Khouri; Janka Saderova; Andrea Rosova; Michal Cehlar; Marian Sofranko. 2021. "Methods of Increasing Warehouse Capacity in an Enterprise: Case Study." 5th EAI International Conference on Management of Manufacturing Systems , no. : 295-303.

Journal article
Published: 30 July 2021 in Sustainability
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This article is focused on the creation of a system for forecasting of future orders for a specific beverage cans manufacturer. The problem comes from the irregular ordering of cans from different customers; not only national companies, but also from companies abroad. This causes fluctuations in production and consequently an irregular transport regime. That is why the beverage can producer demanded a forecasting system that would help to create an annual production plan. The aim is to analyze the ordering process for the last two years and on that basis to create a forecast system of the possible ordering process for the following year. This is necessary for the introduction of regularity of production, because the frequent transitions of the line to another assortment range or other surface printing requires long downtimes due to the technological setting, thus creating large losses due to inactivity of the production line. As drinking habits of final customers reflect the sale of cans, it was expected that sale data would have a seasonable character; this was proved after a brief analysis of the former data. After that, the appropriate forecasting methods were chosen. The methodology was created to combine multiple forecast results into one to increase the forecast objectivity. Forecasting is performed at three different levels: forecasting of assortment, forecasting of region sale and total forecasting of all orders. In spite of the change in market behavior in 2020, due to the pandemic situation in the first wave of the COVID-19 crisis, the sale of beverage cans is expected to stabilize and return to pre-crisis level as early as 2021. Then the forecasting system will fully meet the company’s requirements.

ACS Style

Peter Kacmary; Andrea Rosova; Marian Sofranko; Peter Bindzar; Janka Saderova; Jan Kovac. Creation of Annual Order Forecast for the Production of Beverage Cans—The Case Study. Sustainability 2021, 13, 8524 .

AMA Style

Peter Kacmary, Andrea Rosova, Marian Sofranko, Peter Bindzar, Janka Saderova, Jan Kovac. Creation of Annual Order Forecast for the Production of Beverage Cans—The Case Study. Sustainability. 2021; 13 (15):8524.

Chicago/Turabian Style

Peter Kacmary; Andrea Rosova; Marian Sofranko; Peter Bindzar; Janka Saderova; Jan Kovac. 2021. "Creation of Annual Order Forecast for the Production of Beverage Cans—The Case Study." Sustainability 13, no. 15: 8524.

Journal article
Published: 27 July 2021 in Sustainability
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Crushing is one of the most energy-consuming technological processes. The purpose of grinding is to achieve the desired grain size of mineral raw materials. The process of grinding consists of many factors, for example, the size and form of crushed grains, as well as their mutual arrangement inside the crushing machine chamber, the technological parameters of the crusher, the material properties, and the speed of the moving grains. One of the key parameters of the aggregate is its resistance to grinding. Resistance to grinding is related to the strength of the products made from aggregates subjected to grinding, which affects the overall quality of these products. Therefore, the aim of this study is to analyze the impact of the crushing of natural aggregate on the LA crumbling strength index. Two types of aggregates were analyzed—natural gravel and natural pebbles crushed in a crusher. Aggregates were acquired from two mines belonging to the plant Kruszgeo S.A. in Rzeszów, i.e., ZEK (Zakład Eksploatacji Kruszywa) Ostrów and ZEK Strzegocice II. The aggregate crushing process was carried out for 4–8 mm and 10–14 mm fractions using cone crushers of the 1044 type. Aggregate crushing was carried out in a Los Angeles drum, in accordance with the requirements of EN 1097-2:2020. The analysis showed that for grits of the 10–14 mm fraction, the lower values of the LA indices were obtained, which allows for obtaining a bigger index of crushing strength than in the case of crushing using the 4–8 mm fraction. This analysis showed how important the process of grinding aggregates is and, thus, the appropriate selection of fractions for the grit crushing process for the aggregate strength on grinding. Subjecting the aggregate to the grinding process results in an improvement in the crushing strength indicator, thus obtaining better strength parameters of the products manufactured from the aggregates subjected to the process of crushing (for example, concrete). The originality of the study is an analysis of key Polish aggregates and the crushing strength index.

ACS Style

Andrzej Pacana; Dominika Siwiec; Lucia Bednarova; Marian Sofranko; Olga Vegsoova; Martin Cvoliga. Influence of Natural Aggregate Crushing Process on Crushing Strength Index. Sustainability 2021, 13, 8353 .

AMA Style

Andrzej Pacana, Dominika Siwiec, Lucia Bednarova, Marian Sofranko, Olga Vegsoova, Martin Cvoliga. Influence of Natural Aggregate Crushing Process on Crushing Strength Index. Sustainability. 2021; 13 (15):8353.

Chicago/Turabian Style

Andrzej Pacana; Dominika Siwiec; Lucia Bednarova; Marian Sofranko; Olga Vegsoova; Martin Cvoliga. 2021. "Influence of Natural Aggregate Crushing Process on Crushing Strength Index." Sustainability 13, no. 15: 8353.

Journal article
Published: 24 June 2021 in Management Systems in Production Engineering
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During mechanical disintegration of the rock, for mining works are used also roadheaders. Roadheaders, in comparison with disintegration by blasting operations can without interuption, and works changes with one machine, dissolve, load and at the same time mine disintegrated rock. These electro-hydraulic machines cause no harmful vibrations and are ideal for mining coal and other soft rock minerals. Mechanical mining is safer, protects the rock environment, allows mining without further breaks, allows you to achieve a higher level of daily progress and also saves work. The analysis of occupational accidents in the Slovak Republic shows that it is necessary require from employees increased attention in any work activity and attention in the work performed (mainly work in handling material, objects and burdens). In the underground coal mines further attention needs to be paid to securing hazardous areas, it is necessary to proceed in such a way as to prevent as much as possible the fall of rock as much as possible Underground roads require modification and equipment in accordance with regulations. It is necessary to follow health and safety instructions mentioned in operating and maintenance documentation. Correction of some deficiencies is ordered by a decision of the Mining Office. Most measures are aimed at adhering to technological discipline, to complement operating documentation, to prevent rock falls, to equip some machinery and transport equipment, to work procedures for handling loads, to maintenance of mining works and for explosion and anti-vapor prevention. In this article, we assess the safety risks of two roadheaders for coal mining works in Slovak conditions. Pairwise comparisons of the criteria of selected roadheaders were used to determine the safety risks, as well as taking into account the risks and safety measures according to the mixed methods following to the standard.

ACS Style

Erika Škvareková; Marianna Tomašková; Dušan Sabadka; Marian Šofranko; Štefan Zelenák. Evaluation and Risk Factors of Roadheaders in Coal Mines. Management Systems in Production Engineering 2021, 29, 242 -250.

AMA Style

Erika Škvareková, Marianna Tomašková, Dušan Sabadka, Marian Šofranko, Štefan Zelenák. Evaluation and Risk Factors of Roadheaders in Coal Mines. Management Systems in Production Engineering. 2021; 29 (3):242-250.

Chicago/Turabian Style

Erika Škvareková; Marianna Tomašková; Dušan Sabadka; Marian Šofranko; Štefan Zelenák. 2021. "Evaluation and Risk Factors of Roadheaders in Coal Mines." Management Systems in Production Engineering 29, no. 3: 242-250.

Journal article
Published: 28 May 2021 in Applied Sciences
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This article evaluates changes in the organization of transport on urban roads through the transport model in the OmniTRANS program. The selected location for the case study in this article is the internal traffic circuit of Kosice, which borders the historic core of the city. Currently, the proposal is being prepared to change the organization of transport in the town’s monument reserve and its protection zone. The transition to a one-way road around the historic center is being considered. Before introducing the new proposed change in traffic, it is necessary to test this proposed change and determine how it will affect the traffic situation. The aim of this article is to compare the current transport organization with the proposed change in transport organization in terms of traffic intensity. The use of transport models in the world is not a new concept, but it is often not used in the conditions of the Slovak Republic. However, traffic and simulation models can save money and time and avoid possible unexpected problems before putting the proposed changes into practice. Solving the given problem is an excellent benefit for transport planning and traffic engineering for Kosice and other places with a similar arrangement of the historical center and a similar number of inhabitants. The proposed changes can be tested by modelling traffic and then to adjust them when the cons are identified. Thanks to the traffic simulation model, it is possible to compare the capacity load of the inner traffic circuit of the city before and after the introduction of the one-way circuit.

ACS Style

Peter Bindzar; Janka Saderova; Marian Sofranko; Peter Kacmary; Jaroslaw Brodny; Magdalena Tutak. A Case Study: Simulation Traffic Model as a Tool to Assess One-Way vs. Two-Way Traffic on Urban Roads around the City Center. Applied Sciences 2021, 11, 5018 .

AMA Style

Peter Bindzar, Janka Saderova, Marian Sofranko, Peter Kacmary, Jaroslaw Brodny, Magdalena Tutak. A Case Study: Simulation Traffic Model as a Tool to Assess One-Way vs. Two-Way Traffic on Urban Roads around the City Center. Applied Sciences. 2021; 11 (11):5018.

Chicago/Turabian Style

Peter Bindzar; Janka Saderova; Marian Sofranko; Peter Kacmary; Jaroslaw Brodny; Magdalena Tutak. 2021. "A Case Study: Simulation Traffic Model as a Tool to Assess One-Way vs. Two-Way Traffic on Urban Roads around the City Center." Applied Sciences 11, no. 11: 5018.

Journal article
Published: 17 April 2021 in Sustainability
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The warehouse process, as one of many logistics processes, currently holds an irreplaceable position in logistics systems in companies and in the supply chain. The proper function of warehouse operations depends on, among other things, the type of the used technology and their utilization. The research in this article is focused on the design of a warehouse system. The selection of a suitable warehouse system is a current research topic as the warehouse system has an impact on warehouse capacity and utilization and on the speed of storage activities. The paper presents warehouse system design methodology that was designed applying the logistics principle-systematic (system) approach. The starting point for designing a warehouse system represents of the process of design logistics systems. The design process consists of several phases: project identification, design process paradigm selection, system analysis, synthesis, and project evaluation. This article’s contribution is the proposed methodology and design of the warehouse system for the specified conditions. The methodology was implemented for the design of a warehouse system in a cold box, which is a part of a distribution warehouse. The technology of pallet racking was chosen in the warehouse to store pallets. Pallets will be stored and removed by forklifts. For the specified conditions, the warehouse system was designed for two alternatives of racking assemblies, which are served by forklifts. Alternative 1—Standard pallet rack with wide aisles and Alternative 2—Pallet dynamic flow rack. The proposed systems were compared on the basis of selected indicators: Capacity—the number of pallet places in the system, Percentage ratio of storage area from the box area, Percentage ratio of handling aisles from the box area, Access to individual pallets by forklift, Investment costs for 1 pallet space in EUR. Based on the multicriteria evaluation, the Alternative 2 was chosen as the acceptable design of the warehouse system with storage capacity 720 pallet units. The system needs only two handling aisles. Loading and unloading processes are separate from each other, which means that there are no collisions with forklifts. The pallets with the goods are operated on the principle of FIFO (first in, first out), which will facilitate the control of the shelf life of batches or series of products. The methodology is a suitable tool for decision-making in selecting and designing a warehouse system.

ACS Style

Janka Saderova; Andrea Rosova; Marian Sofranko; Peter Kacmary. Example of Warehouse System Design Based on the Principle of Logistics. Sustainability 2021, 13, 4492 .

AMA Style

Janka Saderova, Andrea Rosova, Marian Sofranko, Peter Kacmary. Example of Warehouse System Design Based on the Principle of Logistics. Sustainability. 2021; 13 (8):4492.

Chicago/Turabian Style

Janka Saderova; Andrea Rosova; Marian Sofranko; Peter Kacmary. 2021. "Example of Warehouse System Design Based on the Principle of Logistics." Sustainability 13, no. 8: 4492.

Article
Published: 16 March 2021 in Wireless Networks
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The paper deals with the simulation of selected activities in the warehouse. Routine logistics activities are the receipt of the goods, the control of the goods, and the goods’ storage in the warehousing system on the side of the entry into the warehouse. On the output side, these are activities such as picking, packing and shipping. The economy of warehouse operations depends on the efficiency of the logistics activities performed and on deployed the technical means. The paper’s main goal is to present a created simulation model for a selected warehouse activity—receipt of goods into the warehouse. This operation involves unloading the goods from the trucks, moving them to the physical receipt, where the quantitative and qualitative control of the goods is performed (acceptance of goods). An analysis of this activity preceded the creation of the simulation model under operating conditions. The research was performed by observing and measuring the forklift’s work cycle, which unloaded pallets from the trucks. The obtained data from the analysis were the input to the simulation model. The EXTENDSIM8 simulation system was used to create a simulation model. The several experiments were performed on the model after its creating and verifying the functionality. The paper evaluates 3 experiments and analyzes their results. The main benefit, novelty, of the article is the simulation of a selected activity for a specific company’s conditions. The experiments results are a reasonable basis for the creation of an operational tool for the company.

ACS Style

Janka Saderova; Andrea Rosova; Annamaria Behunova; Marcel Behun; Marian Sofranko; Samer Khouri. Case study: the simulation modelling of selected activity in a warehouse operation. Wireless Networks 2021, 1 -10.

AMA Style

Janka Saderova, Andrea Rosova, Annamaria Behunova, Marcel Behun, Marian Sofranko, Samer Khouri. Case study: the simulation modelling of selected activity in a warehouse operation. Wireless Networks. 2021; ():1-10.

Chicago/Turabian Style

Janka Saderova; Andrea Rosova; Annamaria Behunova; Marcel Behun; Marian Sofranko; Samer Khouri. 2021. "Case study: the simulation modelling of selected activity in a warehouse operation." Wireless Networks , no. : 1-10.

Journal article
Published: 27 February 2021 in Applied Sciences
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Vibrations caused by blasting works have an impact not only on buildings but also the internal environment of the buildings. If these buildings are situated in the surroundings of quarries, the citizens can perceive these vibrations negatively. By applying an appropriate millisecond timing interval, it is possible to lower the intensity of vibrations to the levels that the citizens will not perceive as negative effects inside the buildings. The limit values for this vibration intensity have not been defined to date. For the protection of the building from the vibrations, normative values of the particle velocity and frequency were determined. Hygienic standards for the inhabitants of the housing were applied, which assessed the impact of the vibration on humans through the measurement of the vibration acceleration in the housing. In this article, the results of the research carried out in Trebejov Quarry are presented. The experimental blasts carried out in Trebejov Quarry proved that the reduction in the vibration intensity under the value 2 mm.s−1 led to the satisfaction of the inhabitants.

ACS Style

Jan Feher; Jozef Cambal; Blazej Pandula; Julian Kondela; Marian Sofranko; Tawfik Mudarri; Ivan Buchla. Research of the Technical Seismicity Due to Blasting Works in Quarries and Their Impact on the Environment and Population. Applied Sciences 2021, 11, 2118 .

AMA Style

Jan Feher, Jozef Cambal, Blazej Pandula, Julian Kondela, Marian Sofranko, Tawfik Mudarri, Ivan Buchla. Research of the Technical Seismicity Due to Blasting Works in Quarries and Their Impact on the Environment and Population. Applied Sciences. 2021; 11 (5):2118.

Chicago/Turabian Style

Jan Feher; Jozef Cambal; Blazej Pandula; Julian Kondela; Marian Sofranko; Tawfik Mudarri; Ivan Buchla. 2021. "Research of the Technical Seismicity Due to Blasting Works in Quarries and Their Impact on the Environment and Population." Applied Sciences 11, no. 5: 2118.

Journal article
Published: 25 January 2021 in Processes
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The question of electromobility is greatly discussed theme of the present especially in connection with the reduction of greenhouse gas emissions. In order to fulfill decarbonization targets, incentives of many countries lead to the support of electromobility. In this paper we ask to which extend are Visegrád Group countries prepared for the widespread utilization of electric cars and define a new coefficient K called the infrastructural country electromobility coefficient. Its computing is covered by appropriate analysis and calculations done previously. Several indices that keep particular information about the state of preparation for electromobility are defined and debated here, as well. Their product forms the coefficient K. Obtained results include outcomes and discussion regarding the level of infrastructural electromobility preparedness for the chosen states, among which we extra focus on the position of Slovakia compared to the European Union average and European electromobility leaders. Based on the data obtained, we found out that the stage of preparation of Slovakia for electromobility among Visegrad Group countries is rather good, although it is far behind the European Union leaders. We realized that there was a rapid growth of electromobility infrastructure in Slovak Republic in the last five years as its infrastructural country electromobility coefficient grew 334 times.

ACS Style

Erika Feckova Skrabulakova; Monika Ivanova; Andrea Rosova; Elena Gresova; Marian Sofranko; Vojtech Ferencz. On Electromobility Development and the Calculation of the Infrastructural Country Electromobility Coefficient. Processes 2021, 9, 222 .

AMA Style

Erika Feckova Skrabulakova, Monika Ivanova, Andrea Rosova, Elena Gresova, Marian Sofranko, Vojtech Ferencz. On Electromobility Development and the Calculation of the Infrastructural Country Electromobility Coefficient. Processes. 2021; 9 (2):222.

Chicago/Turabian Style

Erika Feckova Skrabulakova; Monika Ivanova; Andrea Rosova; Elena Gresova; Marian Sofranko; Vojtech Ferencz. 2021. "On Electromobility Development and the Calculation of the Infrastructural Country Electromobility Coefficient." Processes 9, no. 2: 222.

Journal article
Published: 15 October 2020 in Energies
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Taking climate and geopolitical issues into account, we must shift our thinking towards “eco” and focus on renewable energy. The accessible solar energy represents 400 times the amount of consumption, while its potential represents 10,000 times the amount of demand. The paper aims to analyze recycled, customized polyvinyl butyral (PVB) with high purity (more than 98%) concerning its physicochemical and mechanical properties and its possible applicability in the photovoltaic industry as an encapsulating material. The detailed investigation on polyvinyl butyral starting from characterizations, homogenization, and moulding process to tensile tests and used exposure testing in laboratory apparatus are performed. Samples of recycled polyvinyl butyral were exposed to ultraviolet (UV) radiation of the value 0.76 W.m–2.nm–1 at 340 nm, water spray, drying at 50 °C and condensation for 320 h when the radiation was turned off. The results obtained were more controlled in a laboratory environment than those found in external, uncontrolled environments. These conditions subsequently accelerate any degradation of polyvinyl butyral as a material and subsequent degradation of the final product.

ACS Style

Samer Khouri; Marcel Behun; Lucia Knapcikova; Annamaria Behunova; Marian Sofranko; Andrea Rosova. Characterization of Customized Encapsulant Polyvinyl Butyral Used in the Solar Industry and Its Impact on the Environment. Energies 2020, 13, 5391 .

AMA Style

Samer Khouri, Marcel Behun, Lucia Knapcikova, Annamaria Behunova, Marian Sofranko, Andrea Rosova. Characterization of Customized Encapsulant Polyvinyl Butyral Used in the Solar Industry and Its Impact on the Environment. Energies. 2020; 13 (20):5391.

Chicago/Turabian Style

Samer Khouri; Marcel Behun; Lucia Knapcikova; Annamaria Behunova; Marian Sofranko; Andrea Rosova. 2020. "Characterization of Customized Encapsulant Polyvinyl Butyral Used in the Solar Industry and Its Impact on the Environment." Energies 13, no. 20: 5391.

Journal article
Published: 29 September 2020 in Sustainability
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This article is devoted to modelling of the extracted raw material removal from a mining area to the entry point for the next technological process. Two approaches were chosen for the process modelling. The first approach is regarded to traffic modelling by using available mathematical equations, based on capacity conversion and calculation of loading equipment efficiency. The second approach of modelling is computer simulation within the simulation system ExtendSim8. The modelling of the transport system and the determination of its efficiency were performed at the same conditions. The examined transport system was consisted of two lorries and one loader. The article presents the results of calculations and the results of simulation experiments, which also verified the results obtained by calculations. Calculations of the transport system performance and simulation experiments were performed for two time periods, for a time of 1 h and 6 h during a shift from three different loading places, which were 500, 1100 and 1450 m away from a place of unloading. The results obtained by both approaches are comparable. The main contribution, novelty, of this article is the modelling of the process in a quarry operation (loading and removal of mineral resources) not only on the basis of available mathematical formulas but also the application of simulation in the simulation tool EXTENDSim8, performing simulation experiments for specified conditions and their comparison with calculated values. Simulation is a suitable tool for determining and subsequently planning of the performance of both existing and projected transport systems.

ACS Style

Janka Saderova; Andrea Rosova; Peter Kacmary; Marian Sofranko; Peter Bindzar; Tomasz Malkus. Modelling as a Tool for the Planning of the Transport System Performance in the Conditions of a Raw Material Mining. Sustainability 2020, 12, 8051 .

AMA Style

Janka Saderova, Andrea Rosova, Peter Kacmary, Marian Sofranko, Peter Bindzar, Tomasz Malkus. Modelling as a Tool for the Planning of the Transport System Performance in the Conditions of a Raw Material Mining. Sustainability. 2020; 12 (19):8051.

Chicago/Turabian Style

Janka Saderova; Andrea Rosova; Peter Kacmary; Marian Sofranko; Peter Bindzar; Tomasz Malkus. 2020. "Modelling as a Tool for the Planning of the Transport System Performance in the Conditions of a Raw Material Mining." Sustainability 12, no. 19: 8051.

Journal article
Published: 14 August 2020 in Energies
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Uranium is one of the strategic minerals used mainly in energetics. The main purpose of uranium mining is to achieve maximum production to meet the rapidly growing demand for energies. It needs to become aware that technological progress in mining processes could significantly reduce the negative impacts associated with environmental, economic, and social risks. Uranium mining is one of the most controversial topics. It is dealt with by many experts and scientists around the world. Various methods and technologies of uranium mining are encountered in professional journals, as well as political or socio-economic decisions based on the impact and importance of the energy potential of uranium deposits, or the environmental impacts of uranium mining. The deposit of Kuriskova is one of the most perspective deposits not only in Slovakia but also in the world. The deposit is located near the town of Kosice (with near 240,000 inhabitants) and near the recreational area of Jahodna in the east of the Slovak Republic. The analysis and determination of the energy potential of the deposit of Kuriskova shows that uranium reserves from this deposit would be able to fully cover the needs for nuclear power plants for the production of nuclear fuel, in the Slovak Republic, even in the longer term. With the above-mentioned energy potential of the deposit of Kuriskova at the level of 600 TWh, nuclear power plants in the Slovak Republic are able to be supplied with raw materials from the deposit of Kuriskova for about 40 years with the current amount of electricity produced (approx. 15 TWh). Therefore, for the purposes of this research, a proposal for the extraction of uranium reserves at the deposit of Kuriskova was made. Based on it, it is possible to determine the amount of recoverable uranium reserves from the deposit. A methodology has been determined with mining this proposal, which takes into account the basic criteria of uranium deposit mining, which was used for the selection of a suitable mining technology for the uranium deposit of Kuriskova.

ACS Style

Marian Sofranko; Samer Khouri; Olga Vegsoova; Peter Kacmary; Tawfik Mudarri; Martin Koncek; Maxim Tyulenev; Zuzana Simkova. Possibilities of Uranium Deposit Kuriskova Mining and Its Influence on the Energy Potential of Slovakia from Own Resources. Energies 2020, 13, 4209 .

AMA Style

Marian Sofranko, Samer Khouri, Olga Vegsoova, Peter Kacmary, Tawfik Mudarri, Martin Koncek, Maxim Tyulenev, Zuzana Simkova. Possibilities of Uranium Deposit Kuriskova Mining and Its Influence on the Energy Potential of Slovakia from Own Resources. Energies. 2020; 13 (16):4209.

Chicago/Turabian Style

Marian Sofranko; Samer Khouri; Olga Vegsoova; Peter Kacmary; Tawfik Mudarri; Martin Koncek; Maxim Tyulenev; Zuzana Simkova. 2020. "Possibilities of Uranium Deposit Kuriskova Mining and Its Influence on the Energy Potential of Slovakia from Own Resources." Energies 13, no. 16: 4209.

Journal article
Published: 07 August 2020 in Sustainability
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Geopolymers are materials prepared from alkaline-activated cement without a calcium constituent. They are synthetic materials based on aluminosilicates. The main advantage of these environmentally friendly materials is that they save mineral resources and due to being free of calcium constituents, and only a small amount of CO2 emissions are released into the environment. The circular economy model of sustainable development of new composite materials will ensure the competitiveness of industries, their stable economic growth, and a healthy environment. This paper aims to investigate geopolymer composite materials that were reinforced with a mixture of glass powder from recycled windscreens. The glass 100% circulates in the closed material cycle and can be used again in the manufacturing process without any loss of quality. We are focused on verification of readability of selected automatic identification technology and their usability directly in the manufacturing process of geopolymer composite materials.

ACS Style

Marcel Behun; Patrik Kascak; Matej Hrabcak; Annamaria Behunova; Lucia Knapcikova; Marian Sofranko. Investigation of Sustainable Geopolymer Composite Using Automatic Identification Technology. Sustainability 2020, 12, 6377 .

AMA Style

Marcel Behun, Patrik Kascak, Matej Hrabcak, Annamaria Behunova, Lucia Knapcikova, Marian Sofranko. Investigation of Sustainable Geopolymer Composite Using Automatic Identification Technology. Sustainability. 2020; 12 (16):6377.

Chicago/Turabian Style

Marcel Behun; Patrik Kascak; Matej Hrabcak; Annamaria Behunova; Lucia Knapcikova; Marian Sofranko. 2020. "Investigation of Sustainable Geopolymer Composite Using Automatic Identification Technology." Sustainability 12, no. 16: 6377.

Journal article
Published: 12 May 2020 in Polish Journal of Environmental Studies
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Our paper is devoted to the reclamation of the environment degraded by mining activities. Specifically, it is about an andesite quarry in Vihorlat mountain range. The results show that stabilization of slopes is important from the point of view of technical reclamation of the environment. For mining purposes, the slope angle was defined as 60°. During the opening, preparation and realization of the extraction, the parameters of the operation were influenced by the cohesion in the rock mass c = 14.29 MPa, bulk mass γ = 2.646 kg, m-3 and internal friction angle φ = 50-75°. As part of the reclamation of the degraded area, it is also necessary to perform biochemical reclamation to increase the biodiversity of the area. One possibility is to build a water tank with a bottom area of 8,700 m2. The project results in the following dam parameters: 26 m heel thickness, 5 m thickness on the top, 12 m width, 11 m height, water slope angle 42° and air slope angle 51°. The possibilities of the reclaimed environment of the Zemplínske Hámre quarry are various.

ACS Style

Marian Šofranko; Oľga Végsöová; Tomáš Kalász; Vladimír Sulovec; Ján Beca; Martin Šuver. Effect of Reclamation on an Environment Impaired by Mining Activity: A Case Study. Polish Journal of Environmental Studies 2020, 29, 3329 -3337.

AMA Style

Marian Šofranko, Oľga Végsöová, Tomáš Kalász, Vladimír Sulovec, Ján Beca, Martin Šuver. Effect of Reclamation on an Environment Impaired by Mining Activity: A Case Study. Polish Journal of Environmental Studies. 2020; 29 (5):3329-3337.

Chicago/Turabian Style

Marian Šofranko; Oľga Végsöová; Tomáš Kalász; Vladimír Sulovec; Ján Beca; Martin Šuver. 2020. "Effect of Reclamation on an Environment Impaired by Mining Activity: A Case Study." Polish Journal of Environmental Studies 29, no. 5: 3329-3337.

Article
Published: 05 May 2020 in Wireless Networks
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The aim of the paper is to present a case study and to point out the possibilities of using computer simulation for the purpose of increasing the efficiency and efficiency of custom production of a company. The use of simulation modeling as a scientific method in research and in practice brings benefits such as financial, time, material and energy savings, as well as streamlining activities in real practice. The development of advanced simulation systems has opened up new possibilities and significantly supported the trend of streamlining production activities, thus reducing costs and improving business performance. Simulation, however, is not a tool for obtaining an optimal solution, but rather a tool that allows you to test different decision outputs on a simulation model. Such a simulation model makes it possible to carry out various experiments to evaluate, analyse and determine solution parameters that can then be used in a real system. Risk factors can be investigated and determined beforehand by ‘replacing’ the running simulation model while monitoring system performance and behaviour, then, after applying the required changes, the future behaviour of the system is examined for any potential problems and obstacles. Can be removed in advance. The goal is to analyse the material flow in the production process and then create a simulation to determine the length of production and identify bottlenecks in the production process. In order to get a better idea of the production process, a simulation model was developed in the selected software tool as a custom production project under the conditions of a particular company. The incentive to start production is given to the customer, where every order placed is immediately sent to the customer. The highest frequency order in the enterprise’s production program is used to create the material flow.

ACS Style

Andrea Rosova; Marcel Behun; Samer Khouri; Michal Cehlar; Vojtech Ferencz; Marian Sofranko. Case study: the simulation modeling to improve the efficiency and performance of production process. Wireless Networks 2020, 1 -10.

AMA Style

Andrea Rosova, Marcel Behun, Samer Khouri, Michal Cehlar, Vojtech Ferencz, Marian Sofranko. Case study: the simulation modeling to improve the efficiency and performance of production process. Wireless Networks. 2020; ():1-10.

Chicago/Turabian Style

Andrea Rosova; Marcel Behun; Samer Khouri; Michal Cehlar; Vojtech Ferencz; Marian Sofranko. 2020. "Case study: the simulation modeling to improve the efficiency and performance of production process." Wireless Networks , no. : 1-10.

Journal article
Published: 25 June 2018 in E+M Ekonomie a Management
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ACS Style

Jozef Čech; Marian Sofranko. Economic projection and evaluation of mining venture. E+M Ekonomie a Management 2018, 21, 38 -52.

AMA Style

Jozef Čech, Marian Sofranko. Economic projection and evaluation of mining venture. E+M Ekonomie a Management. 2018; 21 (2):38-52.

Chicago/Turabian Style

Jozef Čech; Marian Sofranko. 2018. "Economic projection and evaluation of mining venture." E+M Ekonomie a Management 21, no. 2: 38-52.

Proceedings article
Published: 20 June 2017 in 17th International Multidisciplinary Scientific GeoConference SGEM2017, Energy and Clean Technologies
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ACS Style

Marian Sofranko. NEW DEEP - WELL BORING TECHNOLOGIES OF ROCK DISINTEGRATION. 17th International Multidisciplinary Scientific GeoConference SGEM2017, Energy and Clean Technologies 2017, 1 .

AMA Style

Marian Sofranko. NEW DEEP - WELL BORING TECHNOLOGIES OF ROCK DISINTEGRATION. 17th International Multidisciplinary Scientific GeoConference SGEM2017, Energy and Clean Technologies. 2017; ():1.

Chicago/Turabian Style

Marian Sofranko. 2017. "NEW DEEP - WELL BORING TECHNOLOGIES OF ROCK DISINTEGRATION." 17th International Multidisciplinary Scientific GeoConference SGEM2017, Energy and Clean Technologies , no. : 1.

Journal article
Published: 01 January 2015 in International Journal of Mining and Mineral Engineering
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One of basic conditions of transport optimising in a quarry is effective use of machinery and minimising of downtimes to be occurred. This condition may be reached good organisation and operation management of loading and transporting. Expenses for optimum management and organisation of transport are growing with increasing mining capacity and amount of mechanisms used within the transporting system. For larger installations, there is a request for use of computer applications to solve tasks related to optimisation of the transport system. In this paper a proposal is presented for transport optimisation in a particular quarry operation using electronic information collection to be performed by means of PDA device and applied software developed for transport management needs.

ACS Style

Marian Sofranko; Gabriel Wittenberger; Erika Skvarekova. Optimisation of technological transport in quarries using application software. International Journal of Mining and Mineral Engineering 2015, 6, 1 .

AMA Style

Marian Sofranko, Gabriel Wittenberger, Erika Skvarekova. Optimisation of technological transport in quarries using application software. International Journal of Mining and Mineral Engineering. 2015; 6 (1):1.

Chicago/Turabian Style

Marian Sofranko; Gabriel Wittenberger; Erika Skvarekova. 2015. "Optimisation of technological transport in quarries using application software." International Journal of Mining and Mineral Engineering 6, no. 1: 1.

Journal article
Published: 01 August 2014 in Applied Mechanics and Materials
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This paper describes in the introduction part basic information concerning selection of device of technological line for the aggregates production. It is mostly focused on crushers, which during the crushing have main influence on the outer characteristics of aggregate. Correct functionality of crushers in the process of production of aggregate is crucial and relies on the selection of right mechanical influence on pieces of aggregate during crushing while respecting characteristics of crushed rocks and parameters of chosen crusher. Because of this there are written basic principles of mechanical influence on crushed material of pressure influence (jaw crusher) and with dynamic influence (impact crusher). Later are listed basic requirements for connection of each device within technological line on which follows description of an application for designing of technological line. This application allows designing the technological line with optimization of selection of devices which are using databases of available devices while still respecting listed basic rules of connection to the technological line. This way is ensured requirement of continuous material flow in production of aggregate on technological line.

ACS Style

Marek Laciak; Marian Sofranko. Optimization of Device Selection in Design of Technological Lines for the Aggregates Production. Applied Mechanics and Materials 2014, 611, 387 -394.

AMA Style

Marek Laciak, Marian Sofranko. Optimization of Device Selection in Design of Technological Lines for the Aggregates Production. Applied Mechanics and Materials. 2014; 611 ():387-394.

Chicago/Turabian Style

Marek Laciak; Marian Sofranko. 2014. "Optimization of Device Selection in Design of Technological Lines for the Aggregates Production." Applied Mechanics and Materials 611, no. : 387-394.

Journal article
Published: 01 June 2014 in Advanced Materials Research
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In coal mines one of the most serious safety problems are endogenous fires. Given the specific mining conditions a number of self-heating and spontaneous combustion occurs in coal mining. These activities have a negative effect on the organization of mining operations and require a variety of interventions for their disposal and are a considerable economic burden. At the same time in case of suitable conditions threaten of their transition in the explosion exists. For the application of appropriate measures it is necessary to know the size of the risk of endogenous fires in the coal mine. The paper therefore describes a methodology for risk analysis of endogenous fire in a coal mine, taking into account all relevant factors of production.

ACS Style

Marian Sofranko. Methodology of Risk Analysis of Endogenous Fire in Coal Mines. Advanced Materials Research 2014, 962-965, 1153 -1157.

AMA Style

Marian Sofranko. Methodology of Risk Analysis of Endogenous Fire in Coal Mines. Advanced Materials Research. 2014; 962-965 ():1153-1157.

Chicago/Turabian Style

Marian Sofranko. 2014. "Methodology of Risk Analysis of Endogenous Fire in Coal Mines." Advanced Materials Research 962-965, no. : 1153-1157.