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Former pilot and flight instructor for airplanes and helicopters with 22 years of experience, air traffic controller with 3 years of experience, 12 parachute jumps, and managerial skills of the Air Force Base Commander. I currently work in aviation education of civil and military pilots, air traffic controllers, and other specialists for the aviation industry, in interdisciplinary and applied research on relevant topics, at the Technical University in Košice. Research interest: air transport; aviation education; flight training; aeronautical engineering; decision-making processes; security and safety; the impact of aviation activities on the environment and health; interdisciplinary research in the field of health and human factors/performance; criminology in aviation.
The main objective of the presented study was to examine the associations between the use of renewable energy sources in selected sectors (transport, electricity, heating, and cooling) and the prevalence of selected groups of diseases in the European Union, with an emphasis on the application of statistical methods considering the structure of data. The analyses included data on 27 countries of the European Union from 2010 to 2019 published in the Eurostat database and the Global Burden of Disease Study. Panel regression models (pooling model, fixed (within) effects model, random effects model) were primarily used in analytical procedures, in which a panel variable was represented by countries. In most cases, positive and significant associations between the use of renewable energy sources and the prevalence of diseases were confirmed. The results of panel regression models could be generally interpreted as meaning that renewable energy sources are associated with the prevalence of diseases such as cardiovascular diseases, diabetes and kidney diseases, digestive diseases, musculoskeletal disorders, neoplasms, sense organ diseases, and skin and subcutaneous diseases at a significance level (α) of 0.05 and lower. These findings could be explained by the awareness of the health problem and the response in the form of preference for renewable energy sources. Regarding statistical methods used for country data or for data with a specific structure, it is recommended to use the methods that take this structure into account. The absence of these methods could lead to misleading conclusions.
Robert Stefko; Beata Gavurova; Miroslav Kelemen; Martin Rigelsky; Viera Ivankova. Relationships between Renewable Energy and the Prevalence of Morbidity in the Countries of the European Union: A Panel Regression Approach. International Journal of Environmental Research and Public Health 2021, 18, 6548 .
AMA StyleRobert Stefko, Beata Gavurova, Miroslav Kelemen, Martin Rigelsky, Viera Ivankova. Relationships between Renewable Energy and the Prevalence of Morbidity in the Countries of the European Union: A Panel Regression Approach. International Journal of Environmental Research and Public Health. 2021; 18 (12):6548.
Chicago/Turabian StyleRobert Stefko; Beata Gavurova; Miroslav Kelemen; Martin Rigelsky; Viera Ivankova. 2021. "Relationships between Renewable Energy and the Prevalence of Morbidity in the Countries of the European Union: A Panel Regression Approach." International Journal of Environmental Research and Public Health 18, no. 12: 6548.
This paper presents the development of technologies to support the decision-making of local government executives and smart city concept managers in selecting and evaluating the competencies of new members for advisory groups for solving problems that are implemented in safe times in individual areas or in crises, such as pandemics. The reason for developing effective urban transformation strategies and for the transparent selection of independent experts (non-politicians) for policymaking, decision-making, and implementation teams is not only the heterogeneity of smart city dimensions together with the necessary complexity and systems approach, but also the nature of the capacities and tools needed for smart city concepts. The innovative hybrid competency assessment model is based on fuzzy logic and a network for neuro-fuzzy assessment. It is a technological model for evaluating the competencies of specialists, taking into account the influence of human factors on the processes of personnel selection and system management. An innovative web platform named “Smart City Concept Personnel Selection” has been designed, which can be adapted to various users of municipalities or regional institutions for the transparent selection of qualified personnel for effective decision-making and the use of public funds during safe times or emergencies, such as the COVID-19 pandemic.
Miroslav Kelemen; Volodymyr Polishchuk; Beáta Gavurová; Róbert Rozenberg; Juraj Bartok; Ladislav Gaál; Martin Gera; Martin Kelemen. Model of Evaluation and Selection of Expert Group Members for Smart Cities, Green Transportation and Mobility: From Safe Times to Pandemic Times. Mathematics 2021, 9, 1287 .
AMA StyleMiroslav Kelemen, Volodymyr Polishchuk, Beáta Gavurová, Róbert Rozenberg, Juraj Bartok, Ladislav Gaál, Martin Gera, Martin Kelemen. Model of Evaluation and Selection of Expert Group Members for Smart Cities, Green Transportation and Mobility: From Safe Times to Pandemic Times. Mathematics. 2021; 9 (11):1287.
Chicago/Turabian StyleMiroslav Kelemen; Volodymyr Polishchuk; Beáta Gavurová; Róbert Rozenberg; Juraj Bartok; Ladislav Gaál; Martin Gera; Martin Kelemen. 2021. "Model of Evaluation and Selection of Expert Group Members for Smart Cities, Green Transportation and Mobility: From Safe Times to Pandemic Times." Mathematics 9, no. 11: 1287.
Radar measurements are inherently affected by various meteorological and non-meteorological factors that may lead to a degradation of their quality, and the unwanted effects are also transferred into composites, i.e., overlapping images from different radars. The paper was aimed at answering the research question whether we could create ‘cleaner’ radar composites without disturbing features, and if yes, how the operational practice could take advantage of the improved results. To achieve these goals, the qRad and qPrec software packages, based on the concept of quality indices, were used. The qRad package estimates the true quality of the C-band radar volume data using various quality indices and attempts to correct some of the adverse effects on the measurements. The qPrec package uses a probabilistic approach to estimate precipitation intensity, based on heterogeneous input data and quality-based outputs of the qRad software. The advantages of the qRad software are improved radar composites, which offer benefits, among others, for aviation meteorology. At the same time, the advantages of the qPrec software are manifested through improved quantitative precipitation estimation, which can be translated into hydrological modeling or climatological precipitation mapping. Beyond this, the developed software indirectly contributes to sustainability and environmental protection—for instance, by enabling fuel savings due to the more effective planning of flight routes or avoiding runway excursions due to information on the increased risk of aquaplaning.
Ladislav Méri; Ladislav Gaál; Juraj Bartok; Martin Gažák; Martin Gera; Marián Jurašek; Miroslav Kelemen. Improved Radar Composites and Enhanced Value of Meteorological Radar Data Using Different Quality Indices. Sustainability 2021, 13, 5285 .
AMA StyleLadislav Méri, Ladislav Gaál, Juraj Bartok, Martin Gažák, Martin Gera, Marián Jurašek, Miroslav Kelemen. Improved Radar Composites and Enhanced Value of Meteorological Radar Data Using Different Quality Indices. Sustainability. 2021; 13 (9):5285.
Chicago/Turabian StyleLadislav Méri; Ladislav Gaál; Juraj Bartok; Martin Gažák; Martin Gera; Marián Jurašek; Miroslav Kelemen. 2021. "Improved Radar Composites and Enhanced Value of Meteorological Radar Data Using Different Quality Indices." Sustainability 13, no. 9: 5285.
One of the praxeological problems of safe and sustainable air transport (airfreight transport/air cargo, and air passenger transport) is the prevention and management of risks by competent staff, with the support of modern information and communication technologies. This paper presents an educational information model and software for the airport network and information systems risk assessment, primarily intended for aviation education and training of professionals for ensuring safe and sustainable air transport. The solution to the problem is based on the application of the fuzzy logic method in the air transport environment. Based on a fuzzy expert model, the selected scenario, and the input data established separately for airport assets by a group of 23 experts from aviation practice and a university, the following three assessments of airport network information system assets were constructed: Asset A2 (meteorological information systems) has an insignificant risk with an estimated 0.1162, and assets A1 (air traffic control and management (ATM), navigational aids and approach) and A3 (runway monitoring system) received a low risk of airport network and information systems (NIS) security with ratings of 0.2623 and 0.2915, respectively. An airport NIS risk assessment was aggregated (0.2288), indicating a low degree of security risk to the airport’s network and information systems. The aggregated risk assessment of airport NIS, including financial loss data, was calculated as 0.1438, representing a low degree of security risk to the airport’s network and information systems. Scenarios for evaluating airport assets are changing for students during education. The results of the developed model and its software will be part of the Simulation Center of the Faculty of Aeronautics.
Miroslav Kelemen; Volodymyr Polishchuk; Beáta Gavurová; Rudolf Andoga; Stanislav Szabo; Wenjiang Yang; John Christodoulakis; Martin Gera; Jaroslaw Kozuba; Peter Kaľavský; Matej Antoško. Educational Model for Evaluation of Airport NIS Security for Safe and Sustainable Air Transport. Sustainability 2020, 12, 6352 .
AMA StyleMiroslav Kelemen, Volodymyr Polishchuk, Beáta Gavurová, Rudolf Andoga, Stanislav Szabo, Wenjiang Yang, John Christodoulakis, Martin Gera, Jaroslaw Kozuba, Peter Kaľavský, Matej Antoško. Educational Model for Evaluation of Airport NIS Security for Safe and Sustainable Air Transport. Sustainability. 2020; 12 (16):6352.
Chicago/Turabian StyleMiroslav Kelemen; Volodymyr Polishchuk; Beáta Gavurová; Rudolf Andoga; Stanislav Szabo; Wenjiang Yang; John Christodoulakis; Martin Gera; Jaroslaw Kozuba; Peter Kaľavský; Matej Antoško. 2020. "Educational Model for Evaluation of Airport NIS Security for Safe and Sustainable Air Transport." Sustainability 12, no. 16: 6352.
Environmental risks, in particular climate change and environmental pollution, are among the key challenges faced by modern governments nowadays. Environmental risks are associated with specific costs and expenditures necessary to mitigate their negative effects. In this context, the financial system plays a significant role, particularly the public financial system, which allocates and redistributes public resources and has an impact on market participants by imposing environmental taxes. This study assessed the interdependence between environmental degradation and public expenditure, financial sector development, environmental taxes, and related socioeconomic policies. The aim was to diagnose and define the relationship between environmental degradation and sustainable fiscal instruments used in the financial system. The original research approach adopted in the study is the inclusion of variables representing a sustainable approach to assessment of the financial system. Two groups of European Union countries were analyzed for the period 2008–2017, namely, converging economies from Central and Eastern Europe and the largest developed economies of Western Europe. The authors found a strong relationship between greenhouse gas emissions and fiscal instruments, especially expenditure on research and development, and the development of the financial sector. In the case of environmental taxes, their impact differed depending on the country, being predominantly beneficial in countries with higher greenhouse gas emissions but unfavorable in countries with lower emissions levels.
Magdalena Zioło; Krzysztof Kluza; Jarosław Kozuba; Miroslav Kelemen; Piotr Niedzielski; Paweł Zinczak. Patterns of Interdependence between Financial Development, Fiscal Instruments, and Environmental Degradation in Developed and Converging EU Countries. International Journal of Environmental Research and Public Health 2020, 17, 1 .
AMA StyleMagdalena Zioło, Krzysztof Kluza, Jarosław Kozuba, Miroslav Kelemen, Piotr Niedzielski, Paweł Zinczak. Patterns of Interdependence between Financial Development, Fiscal Instruments, and Environmental Degradation in Developed and Converging EU Countries. International Journal of Environmental Research and Public Health. 2020; 17 (12):1.
Chicago/Turabian StyleMagdalena Zioło; Krzysztof Kluza; Jarosław Kozuba; Miroslav Kelemen; Piotr Niedzielski; Paweł Zinczak. 2020. "Patterns of Interdependence between Financial Development, Fiscal Instruments, and Environmental Degradation in Developed and Converging EU Countries." International Journal of Environmental Research and Public Health 17, no. 12: 1.
The Single Europe Sky Air Traffic Management Research (SESAR) program develops and implements innovative technological and operational solutions to modernize European air traffic management and to eliminate the negative environmental impacts of aviation activity. This article presents our developments within the SESAR Solution “Safety Support Tools for Avoiding Runway Excursions”. This SESAR Solution aims to mitigate the risk of runway excursion, to optimize airport operation management by decreasing the number of runway inspections, to make chemical treatment effective with respect to the environment, and to increase resilience, efficiency and safety in adverse weather situations. The proposed approach is based on the enhancement of runway surface condition awareness by integrating data from various sources. Dangerous windy conditions based on Lidar measurements are also discussed as another relevant factor in relation to runway excursions. The paper aims to explore four different data mining methods to obtain runway conditions from the available input data sources, examines their performance and discusses their pros and cons in comparison with a rule-based algorithm approach. The output of the SESAR Solution is developed in compliance with the new Global Reporting Format of the International Civil Aviation Organization for runway condition description to be valid from 2020. This standard is expected to provide concerned stakeholders with more precise information to enhance flight safety and environmental protection.
Olga Vorobyeva; Juraj Bartok; Peter Šišan; Pavol Nechaj; Martin Gera; Miroslav Kelemen; Volodymyr Polishchuk; Ladislav Gaál. Assessing the Contribution of Data Mining Methods to Avoid Aircraft Run-Off from the Runway to Increase the Safety and Reduce the Negative Environmental Impacts. International Journal of Environmental Research and Public Health 2020, 17, 796 .
AMA StyleOlga Vorobyeva, Juraj Bartok, Peter Šišan, Pavol Nechaj, Martin Gera, Miroslav Kelemen, Volodymyr Polishchuk, Ladislav Gaál. Assessing the Contribution of Data Mining Methods to Avoid Aircraft Run-Off from the Runway to Increase the Safety and Reduce the Negative Environmental Impacts. International Journal of Environmental Research and Public Health. 2020; 17 (3):796.
Chicago/Turabian StyleOlga Vorobyeva; Juraj Bartok; Peter Šišan; Pavol Nechaj; Martin Gera; Miroslav Kelemen; Volodymyr Polishchuk; Ladislav Gaál. 2020. "Assessing the Contribution of Data Mining Methods to Avoid Aircraft Run-Off from the Runway to Increase the Safety and Reduce the Negative Environmental Impacts." International Journal of Environmental Research and Public Health 17, no. 3: 796.
The article presents an assessment of the long-term variability of storm activity in the aspect of potential threats to aircraft. The analysis of data from the period 1970–2018 was conducted for selected airports in Poland: Gdańsk Lech Wałęsa Airport, IATA code: GDN, ICAO code: EPGD (54°22′39″N 18°27′59″E, altitude above sea level 149 m above sea level); Solidarity Szczecin- Goleniow Airport, IATA code: SZZ, ICAO code: EPSC (53°35′05″ N 14°54′08″ E, altitude above sea level 47 m above sea level); Poznań-Ławica Henryk Wieniawski Airport, IATA code: POZ, ICAO code: EPPO (52°25′16″ N 16°49′35″ E, altitude above sea level 94 m above sea level); Warsaw Chopin Airport, IATA code: WAW, ICAO code: EPWA (52°09′57″ N 20°58′02″ E, altitude above sea level 110 m above sea level); Copernicus Airport Wrocław, IATA code: WRO, ICAO code: EPWR (51°06′10″ N 16°53′10″ E, altitude above sea level 123 m above sea level); John Paul II International Airport Kraków-Balice, IATA code: KRK, ICAO code: EPKK (50°04′40″ N 19°47′06″ E, altitude above sea level 241 m above sea level). The purpose of this paper is to assess the long-term variability of storm activity in the aspect of potential threats to air operations in Poland with the examples of six selected airports. In order to achieve the goal, an analysis of the frequency of storm phenomena in Poland was carried out both in annual and long- term terms. The analysis will allow the assessment of the geographical diversity of the distribution of storm phenomena and their variability in the years 1970–2018. The next stage of the work will be to determine the climatic conditions that exert the greatest impact on the formation of storms. The important factors include atmospheric circulation, which, over the Polish territory, is shaped by the influence of air masses from the Atlantic Ocean, the Baltic Sea and in addition, from the vast continental area. All these air masses clash over the area of Poland causing large variability in the frequency of occurrence of hazardous atmospheric phenomena. For this reason, the Polish climate is defined as a moderate warm climate with transitory features. The important factors affecting regional diversity are local conditions, such as terrain, nature of the land, and distance from water reservoirs. The thermal, humidity and aerodynamic properties of the substrate, which are components of radiation processes, determine the exchange of energy at the interface between the atmosphere and the earth, and largely determine the intensity of selected hazardous atmospheric phenomena. Each occurrence of a storm is a potentially dangerous meteorological event that threatens the environment and human activities, including all types of transport. The studied phenomenon of storms is particularly dangerous for air transport. Literature shows that storm phenomena in Poland are characterized by a large regional diversity, both during the year and over many years. The greatest threat of storm phenomena occurs in the warm period of the year—spring and summer.
Małgorzata Kirschenstein; Kamil Krasuski; Jaroslaw Kozuba; Miroslav Kelemen. Assessment of the Variability of Many Years of Thunderstorm Activity in the Aspect of Potential Threats to Aircraft at Selected Airports in Poland. International Journal of Environmental Research and Public Health 2019, 17, 144 .
AMA StyleMałgorzata Kirschenstein, Kamil Krasuski, Jaroslaw Kozuba, Miroslav Kelemen. Assessment of the Variability of Many Years of Thunderstorm Activity in the Aspect of Potential Threats to Aircraft at Selected Airports in Poland. International Journal of Environmental Research and Public Health. 2019; 17 (1):144.
Chicago/Turabian StyleMałgorzata Kirschenstein; Kamil Krasuski; Jaroslaw Kozuba; Miroslav Kelemen. 2019. "Assessment of the Variability of Many Years of Thunderstorm Activity in the Aspect of Potential Threats to Aircraft at Selected Airports in Poland." International Journal of Environmental Research and Public Health 17, no. 1: 144.
The authors wish to add the following data corrections to the coauthors listed, because of the updated data for their paper published in the International Journal of Environmental Research and Public Health
Miroslav Kelemen; Volodymyr Polishchuk; Beáta Gavurová; Stanislav Szabo; Róbert Rozenberg; Martin Gera; Jaroslaw Kozuba; Rudolf Andoga; Adriana Divoková; Peter Blišťan. Correction: Fuzzy Model for Quantitative Assessment of Environmental Start-up Projects in Air Transport. Int. J. Environ. Res. Public Health 2019, 16(19), 3585. International Journal of Environmental Research and Public Health 2019, 16, 5011 .
AMA StyleMiroslav Kelemen, Volodymyr Polishchuk, Beáta Gavurová, Stanislav Szabo, Róbert Rozenberg, Martin Gera, Jaroslaw Kozuba, Rudolf Andoga, Adriana Divoková, Peter Blišťan. Correction: Fuzzy Model for Quantitative Assessment of Environmental Start-up Projects in Air Transport. Int. J. Environ. Res. Public Health 2019, 16(19), 3585. International Journal of Environmental Research and Public Health. 2019; 16 (24):5011.
Chicago/Turabian StyleMiroslav Kelemen; Volodymyr Polishchuk; Beáta Gavurová; Stanislav Szabo; Róbert Rozenberg; Martin Gera; Jaroslaw Kozuba; Rudolf Andoga; Adriana Divoková; Peter Blišťan. 2019. "Correction: Fuzzy Model for Quantitative Assessment of Environmental Start-up Projects in Air Transport. Int. J. Environ. Res. Public Health 2019, 16(19), 3585." International Journal of Environmental Research and Public Health 16, no. 24: 5011.
The authors wish to make the following correction to their paper
Volodymyr Polishchuk; Miroslav Kelemen; Beáta Gavurová; Costas Varotsos; Rudolf Andoga; Martin Gera; John Christodoulakis; Radovan Soušek; Jaroslaw Kozuba; Peter Blišťan; Stanislav Szabo. Correction: A Fuzzy Model of Risk Assessment for Environmental Start-Up Projects in the Air Transport Sector. Int. J. Environ. Res. Public Health 2019, 16, 3573. International Journal of Environmental Research and Public Health 2019, 16, 4850 .
AMA StyleVolodymyr Polishchuk, Miroslav Kelemen, Beáta Gavurová, Costas Varotsos, Rudolf Andoga, Martin Gera, John Christodoulakis, Radovan Soušek, Jaroslaw Kozuba, Peter Blišťan, Stanislav Szabo. Correction: A Fuzzy Model of Risk Assessment for Environmental Start-Up Projects in the Air Transport Sector. Int. J. Environ. Res. Public Health 2019, 16, 3573. International Journal of Environmental Research and Public Health. 2019; 16 (23):4850.
Chicago/Turabian StyleVolodymyr Polishchuk; Miroslav Kelemen; Beáta Gavurová; Costas Varotsos; Rudolf Andoga; Martin Gera; John Christodoulakis; Radovan Soušek; Jaroslaw Kozuba; Peter Blišťan; Stanislav Szabo. 2019. "Correction: A Fuzzy Model of Risk Assessment for Environmental Start-Up Projects in the Air Transport Sector. Int. J. Environ. Res. Public Health 2019, 16, 3573." International Journal of Environmental Research and Public Health 16, no. 23: 4850.
Low-level wind shear, i.e., sudden changes in wind speed and/or wind direction up to altitudes of 1600 ft (500 m) above-ground is a hazardous meteorological phenomenon in aviation. It may radically change the aerodynamic circumstances of the flight, particularly during landing and take-off and consequently, it may threaten human lives and the health of passengers, people at the airport and its surrounding areas. The Bratislava Airport, the site of this case study, is one of the few airports worldwide and the first in Central Europe that is equipped with a Doppler lidar system, a perspective remote sensing tool for detecting low-level wind shear. The main objective of this paper was to assess the weather events collected over a period of one year with the occurrences of low-level wind shear situations, such as vertical discontinuities in the wind field, frontal passages and gust fronts to increase the level of flight safety and protect human lives and health. The lidar data were processed by a computer algorithm with the main focus on potential wind shear alerts and microburst alerts, guided by the recommendations of the International Civil Aviation Organisation. In parallel, the selected weather events were analyzed by the nearby located meteorological radar to utilize the strengths of both approaches. Additionally, an evaluation of the lidar capability to scan dynamics of aerosol content above the airport is presented.
Pavol Nechaj; Ladislav Gaál; Juraj Bartok; Olga Vorobyeva; Martin Gera; Miroslav Kelemen; Volodymyr Polishchuk. Monitoring of Low-Level Wind Shear by Ground-based 3D Lidar for Increased Flight Safety, Protection of Human Lives and Health. International Journal of Environmental Research and Public Health 2019, 16, 4584 .
AMA StylePavol Nechaj, Ladislav Gaál, Juraj Bartok, Olga Vorobyeva, Martin Gera, Miroslav Kelemen, Volodymyr Polishchuk. Monitoring of Low-Level Wind Shear by Ground-based 3D Lidar for Increased Flight Safety, Protection of Human Lives and Health. International Journal of Environmental Research and Public Health. 2019; 16 (22):4584.
Chicago/Turabian StylePavol Nechaj; Ladislav Gaál; Juraj Bartok; Olga Vorobyeva; Martin Gera; Miroslav Kelemen; Volodymyr Polishchuk. 2019. "Monitoring of Low-Level Wind Shear by Ground-based 3D Lidar for Increased Flight Safety, Protection of Human Lives and Health." International Journal of Environmental Research and Public Health 16, no. 22: 4584.
Miroslav Kelemen; Matej Antoško; Stanislav Szabo; Luboš Socha; Jaroslav Jevčák; Ladislav Choma; Alica Tobisová. EXPERIMENTAL VERIFICATION OF PSYCHOPHYSIOLOGICAL PERFORMANCE OF A SELECTED FLIGHT PERSONNEL AND SW: PRESURVEY FOR TRANSPORT SAFETY. Transport Problems 2019, 14, 145 -154.
AMA StyleMiroslav Kelemen, Matej Antoško, Stanislav Szabo, Luboš Socha, Jaroslav Jevčák, Ladislav Choma, Alica Tobisová. EXPERIMENTAL VERIFICATION OF PSYCHOPHYSIOLOGICAL PERFORMANCE OF A SELECTED FLIGHT PERSONNEL AND SW: PRESURVEY FOR TRANSPORT SAFETY. Transport Problems. 2019; 14 (3):145-154.
Chicago/Turabian StyleMiroslav Kelemen; Matej Antoško; Stanislav Szabo; Luboš Socha; Jaroslav Jevčák; Ladislav Choma; Alica Tobisová. 2019. "EXPERIMENTAL VERIFICATION OF PSYCHOPHYSIOLOGICAL PERFORMANCE OF A SELECTED FLIGHT PERSONNEL AND SW: PRESURVEY FOR TRANSPORT SAFETY." Transport Problems 14, no. 3: 145-154.
The purpose of this paper is to develop an applied fuzzy model of information technology to obtain quantitative estimates of environmental start-up projects in air transport. The developed model will become a useful tool for venture funds, business angels, or crowdfunding platforms for the development of innovative air transport businesses. Obtaining a quantitative estimate of the environmental start-up projects will increase the sustainability of the decision making on the security of financing of such projects by investors. This article develops a fuzzy evaluation model of project start-ups in air transport as an application of our neuro-fuzzy model in a specific air transport environment. The applied model provides output ranking of start-up project teams in air transport based on a four-layer neuro-fuzzy network. The presented model declares the possibilities of the application to solve these economic problems and offers the space for subsequent research focused on its usability in several areas of start-up development, in sectors and processes differentiated. The benefits are also visible for several types of policies, with an emphasis on decision-making processes in regulatory mechanisms to support the state funding in Slovakia, the EU etc.
Miroslav Kelemen; Volodymyr Polishchuk; Beáta Gavurová; Stanislav Szabo; Róbert Rozenberg; Martin Gera; Jaroslaw Kozuba; Rudolf Andoga; Adriana Divoková; Peter Blistan; Jakub Hospodka; Peter Bliš’an. Fuzzy Model for Quantitative Assessment of Environmental Start-up Projects in Air Transport. International Journal of Environmental Research and Public Health 2019, 16, 3585 .
AMA StyleMiroslav Kelemen, Volodymyr Polishchuk, Beáta Gavurová, Stanislav Szabo, Róbert Rozenberg, Martin Gera, Jaroslaw Kozuba, Rudolf Andoga, Adriana Divoková, Peter Blistan, Jakub Hospodka, Peter Bliš’an. Fuzzy Model for Quantitative Assessment of Environmental Start-up Projects in Air Transport. International Journal of Environmental Research and Public Health. 2019; 16 (19):3585.
Chicago/Turabian StyleMiroslav Kelemen; Volodymyr Polishchuk; Beáta Gavurová; Stanislav Szabo; Róbert Rozenberg; Martin Gera; Jaroslaw Kozuba; Rudolf Andoga; Adriana Divoková; Peter Blistan; Jakub Hospodka; Peter Bliš’an. 2019. "Fuzzy Model for Quantitative Assessment of Environmental Start-up Projects in Air Transport." International Journal of Environmental Research and Public Health 16, no. 19: 3585.
The purpose of this paper is to develop a fuzzy model of the risk assessment for environmental start-up projects in the air transport sector at the stage of business expansion. The model developed for the following software will be a useful tool for the risk decision support system of investment funds in financing environmental start-up projects at the stage of market conquest. Developing a quantitative risk assessment for environmental start-up projects for the air transport sector will increase the resilience of making risk decisions about their financing by the investors. In this paper, a set of 21 criteria for assessing the risk of launching environmental start-up projects in the air transport sector were formulated for the first time by presenting inputs in the form of a linguistic risk assessment and the number of credible expert considerations. The fuzzy risk assessment model, based on expert knowledge, uses linguistic variables, reveals the uncertainty of the input data, and displays a risk assessment with linguistic interpretation. The result of the paper is a fuzzy model that is embedded in a generalized algorithm and tested in an example risk assessment of environmental start-up projects in the air transport sector.
Volodymyr Polishchuk; Miroslav Kelemen; Beáta Gavurová; Costas Varotsos; Rudolf Andoga; Martin Gera; John Christodoulakis; Radovan Soušek; Jaroslaw Kozuba; Peter Blišťan; Jr. Stanislav Szabo; Gera; Jakub Hospodka; Szabo Jr.; Stanislav Szabo Jr.. A Fuzzy Model of Risk Assessment for Environmental Start-Up Projects in the Air Transport Sector. International Journal of Environmental Research and Public Health 2019, 16, 3573 .
AMA StyleVolodymyr Polishchuk, Miroslav Kelemen, Beáta Gavurová, Costas Varotsos, Rudolf Andoga, Martin Gera, John Christodoulakis, Radovan Soušek, Jaroslaw Kozuba, Peter Blišťan, Jr. Stanislav Szabo, Gera, Jakub Hospodka, Szabo Jr., Stanislav Szabo Jr.. A Fuzzy Model of Risk Assessment for Environmental Start-Up Projects in the Air Transport Sector. International Journal of Environmental Research and Public Health. 2019; 16 (19):3573.
Chicago/Turabian StyleVolodymyr Polishchuk; Miroslav Kelemen; Beáta Gavurová; Costas Varotsos; Rudolf Andoga; Martin Gera; John Christodoulakis; Radovan Soušek; Jaroslaw Kozuba; Peter Blišťan; Jr. Stanislav Szabo; Gera; Jakub Hospodka; Szabo Jr.; Stanislav Szabo Jr.. 2019. "A Fuzzy Model of Risk Assessment for Environmental Start-Up Projects in the Air Transport Sector." International Journal of Environmental Research and Public Health 16, no. 19: 3573.
The prediction of landslides and other events associated with slope movement is a very serious issue in many national parks around the world. This article deals with the territory of the Malá Studená Dolina (Little Cold Valley, High Tatras National Park—Slovakia), where there are extensive talus cones, through which seasonally heavy hiking trails lead. In the last few years particularly, there have been frequent falls and landslides in the mountainous environment, which also caused several fatal injuries in 2018. For the above reasons, efforts are being made to develop a methodology for monitoring the changes of the talus cones in this specific alpine area, to determine the size, speed, and character of the morphological changes of the soil. Non-contact methods of mass data collection (laser scanning with Leica P40 and aerial photogrammetry with unmanned aerial system (UAS) DJI Phantom 4 Pro) have been used. The results of these measurements were compared and the overall suitability of both methods for measurement in such terrain evaluated. The standard deviation of the difference of surface determination (represented by the point cloud) is about 0.03 m. As such accuracy is sufficient for the purpose of monitoring talus cones and the use of UAS is easier and associated with lower risk of damage of expensive equipment, we conclude that this method is more suitable for mapping and for repeated monitoring of such terrain. The properties of the outputs of the individual measurement methods, the degree of measurement difficulty and specific measurement conditions in the mountainous terrain, as well as the economy of the individual methods, are discussed in detail.
Rudolf Urban; Martin Štroner; Peter Blistan; Ľudovít Kovanič; Matej Patera; Stanislav Jacko; Igor Ďuriška; Miroslav Kelemen; Stanislav Szabo. The Suitability of UAS for Mass Movement Monitoring Caused by Torrential Rainfall—A Study on the Talus Cones in the Alpine Terrain in High Tatras, Slovakia. ISPRS International Journal of Geo-Information 2019, 8, 317 .
AMA StyleRudolf Urban, Martin Štroner, Peter Blistan, Ľudovít Kovanič, Matej Patera, Stanislav Jacko, Igor Ďuriška, Miroslav Kelemen, Stanislav Szabo. The Suitability of UAS for Mass Movement Monitoring Caused by Torrential Rainfall—A Study on the Talus Cones in the Alpine Terrain in High Tatras, Slovakia. ISPRS International Journal of Geo-Information. 2019; 8 (8):317.
Chicago/Turabian StyleRudolf Urban; Martin Štroner; Peter Blistan; Ľudovít Kovanič; Matej Patera; Stanislav Jacko; Igor Ďuriška; Miroslav Kelemen; Stanislav Szabo. 2019. "The Suitability of UAS for Mass Movement Monitoring Caused by Torrential Rainfall—A Study on the Talus Cones in the Alpine Terrain in High Tatras, Slovakia." ISPRS International Journal of Geo-Information 8, no. 8: 317.
The information technology models improving security functioning of crowdfunding platforms and advice on a new type of business were developed. The article solves the problem of safety of crowdfunding platform functioning based on developed models: rating assignment system of unified assessment crowdfunding platforms; startup projects assessment; startup projects risk assessment concerning their financing safety level and criminal law protection of investors against the financial fraud. The models are based on the correct usage of fuzzy logic and fuzzy set device to reveal the uncertainty of experts’ consideration that insures authenticity of scientific results.
Volodymyr Polishchuk; Miroslav Kelemen; Jarosław Kozuba. Technology Improving Safety of Crowdfunding Platforms Functioning in the Context of the Protection of the Start-Up Investors in the Financial and Transport Sectors. Journal of KONBiN 2019, 49, 313 -330.
AMA StyleVolodymyr Polishchuk, Miroslav Kelemen, Jarosław Kozuba. Technology Improving Safety of Crowdfunding Platforms Functioning in the Context of the Protection of the Start-Up Investors in the Financial and Transport Sectors. Journal of KONBiN. 2019; 49 (1):313-330.
Chicago/Turabian StyleVolodymyr Polishchuk; Miroslav Kelemen; Jarosław Kozuba. 2019. "Technology Improving Safety of Crowdfunding Platforms Functioning in the Context of the Protection of the Start-Up Investors in the Financial and Transport Sectors." Journal of KONBiN 49, no. 1: 313-330.
Wizzair was the first low-cost airline to operate at Kosice Airport. From the beginning, it has shown exceptionally good results and the occupancy of its lines has been over 80%. The situation that took place in Vienna forced Wizzair to cancel the base in Kosice and to move the fleet to Vienna. Ryanair takes advantage of this change and enters the market with practically the same line as Wizzair from Kosice to London. The aim of this paper is to describe the situation at Kosice airport. The competitive fight between these two companies is visible from the very first moment when Ryanair introduced its flights at a much better price than Wizzair. The paper also focuses on the comparing these prices and fares as well as the profit over the period under review.
Miroslav Kelemen; Marek Pilát; Sebastián Makó; Róbert Rozenberg; Alica Tobisová. Pricing Policy Aspects in Competitive Fight Between Low-Cost Airlines on Kosice Airport. Journal of KONBiN 2019, 49, 331 -342.
AMA StyleMiroslav Kelemen, Marek Pilát, Sebastián Makó, Róbert Rozenberg, Alica Tobisová. Pricing Policy Aspects in Competitive Fight Between Low-Cost Airlines on Kosice Airport. Journal of KONBiN. 2019; 49 (1):331-342.
Chicago/Turabian StyleMiroslav Kelemen; Marek Pilát; Sebastián Makó; Róbert Rozenberg; Alica Tobisová. 2019. "Pricing Policy Aspects in Competitive Fight Between Low-Cost Airlines on Kosice Airport." Journal of KONBiN 49, no. 1: 331-342.
The article was solved by using the methods with an emphasis on the applied methodological approach to tackling the issue within the concepts of the security sector, personal security, emerging management theories concerning security risks and simulation technologies. The results could secure the protected interests of the state as strategic object for the security sciences that exploring reality through unique research areas, which are characterized by the selected objects of research and application of relevant theoretical and methodological approaches to the field of study. Our findings and conclusion can affect other theoretical and practical direction of research on the quality of education of security personnel for the critical infrastructure sectors to which our Transport sector is an important part too.
Miroslav Kelemen; J. Jevcak. Security Management Education and Training of Critical Infrastructure Sectors’ Experts. 2018 XIII International Scientific Conference - New Trends in Aviation Development (NTAD) 2018, 68 -71.
AMA StyleMiroslav Kelemen, J. Jevcak. Security Management Education and Training of Critical Infrastructure Sectors’ Experts. 2018 XIII International Scientific Conference - New Trends in Aviation Development (NTAD). 2018; ():68-71.
Chicago/Turabian StyleMiroslav Kelemen; J. Jevcak. 2018. "Security Management Education and Training of Critical Infrastructure Sectors’ Experts." 2018 XIII International Scientific Conference - New Trends in Aviation Development (NTAD) , no. : 68-71.
E-learning is way of providing, rapid and adequate response for training in legislative changes and requirements. This is vital, because such changes are frequent in safety education and specifically fire-safety education. It is an enormous burden for schools and training centers to provide all such learning. Money, time saving, and simplification are the main reason to use a “blended” learning. This paper characterizes the advantages and disadvantages of education through the Internet. It deals with the possibilities and ways of using a blended learning approach in selected forms of fire-safety education.
Jozefína Drotárová; Danica Kačíková; Miroslav Kelemen; Mikuláš Bodor. THE POSSIBILITIES OF USING BLENDED LEARNING IN FIRE SAFETY EDUCATION. CBU International Conference Proceedings 2016, 4, 283 -286.
AMA StyleJozefína Drotárová, Danica Kačíková, Miroslav Kelemen, Mikuláš Bodor. THE POSSIBILITIES OF USING BLENDED LEARNING IN FIRE SAFETY EDUCATION. CBU International Conference Proceedings. 2016; 4 ():283-286.
Chicago/Turabian StyleJozefína Drotárová; Danica Kačíková; Miroslav Kelemen; Mikuláš Bodor. 2016. "THE POSSIBILITIES OF USING BLENDED LEARNING IN FIRE SAFETY EDUCATION." CBU International Conference Proceedings 4, no. : 283-286.
Miroslav Kelemen; Jozefína Drotárová; Danica Kačíková; Mikuláš Bodor. PERCEPTON OF SECURITY AND SAFETY NEED: VOLUNTERY FIRE PROTECTION AS A PART OF VOLUNTEERING ON SLOVAK REPUBLIC. Journal of Security and Sustainability Issues 2016, 5, 589 -599.
AMA StyleMiroslav Kelemen, Jozefína Drotárová, Danica Kačíková, Mikuláš Bodor. PERCEPTON OF SECURITY AND SAFETY NEED: VOLUNTERY FIRE PROTECTION AS A PART OF VOLUNTEERING ON SLOVAK REPUBLIC. Journal of Security and Sustainability Issues. 2016; 5 (4):589-599.
Chicago/Turabian StyleMiroslav Kelemen; Jozefína Drotárová; Danica Kačíková; Mikuláš Bodor. 2016. "PERCEPTON OF SECURITY AND SAFETY NEED: VOLUNTERY FIRE PROTECTION AS A PART OF VOLUNTEERING ON SLOVAK REPUBLIC." Journal of Security and Sustainability Issues 5, no. 4: 589-599.
Miroslav Kelemen. LOGISTIC MODELLING TO HANDLE THE THREAT OF FLOODS � THE BODVA RIVER EXAMPLE. 14th SGEM GeoConference on INFORMATICS, GEOINFORMATICS AND REMOTE SENSING 2014, 1 .
AMA StyleMiroslav Kelemen. LOGISTIC MODELLING TO HANDLE THE THREAT OF FLOODS � THE BODVA RIVER EXAMPLE. 14th SGEM GeoConference on INFORMATICS, GEOINFORMATICS AND REMOTE SENSING. 2014; ():1.
Chicago/Turabian StyleMiroslav Kelemen. 2014. "LOGISTIC MODELLING TO HANDLE THE THREAT OF FLOODS � THE BODVA RIVER EXAMPLE." 14th SGEM GeoConference on INFORMATICS, GEOINFORMATICS AND REMOTE SENSING , no. : 1.