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  • The Relationship Between Leadership and Management and Quality Management: Systematic Literature Review
    48-62
    Views:
    459

    This publication is intended to examine the close relationship between quality management and leadership and organization, highlighting the possibilities of increasing organizational efficiency in both industrial and non-industrial environments. During the systematic literature review, we examined the role of leadership, the closely related organizational culture, and quality management. The publication aims to explain how quality systems and frameworks, such as ISO and the EFQM model, support strategic planning and sustainability, thus providing direction for modern organizations. The research emphasizes the importance of digital transformation and knowledge management, and we have formulated the future research goals that can advance the productivity of organizations.

  • Simulation of BLDC Motor Drive Systems for Electric Vehicles Using Matlab Simulink
    48-52
    Views:
    491

    The defining scientific developments of our time would not have been possible without the use of simulations. The aim of the research is to create a simulation of a BLDC motor. When creating a simulation, great emphasis must be placed on defining the purpose of the simulation. This basically determines the structure and complexity of the model. The model discussed here was created so that an optimization task could be defined more precisely by inserting it as a sub-model into a vehicle dynamics model. Scalability was another aspect, that is, to be able to increase the accuracy of the model with measured data in the future, as well as to be able to validate it. During the research, a BLDC motor efficiency map generation program was created, as well as an environment for testing the generated data. The created system gives researchers the opportunity to use a shape-correct efficiency model when simulating a BLDC motor even without measured data. This makes it possible to discover real relationships between model parameters when performing optimization.

     
  • Examination of road sections in Debrecen by noise mapping
    287-295
    Views:
    186

    During the research, noise level calculations were performed for 13 numbered roads in and around Debrecen and a noise map analysis was conducted on the roads’ environment. The first examined year was 1995, the last was 2017. In the time interval, annual status was determined based on average daily traffic data. In addition to the road noise values calculated for each section, a noise map was prepared for each survey year. For the evaluation of the results a difference map of the highlighted periods was prepared. Typically, noise level increase from road sources was identified between 1995 and 2017 in a significant part of the studied area (southern and eastern parts of Debrecen and around the newly built roads). Stagnant noise level was diagnosed near the downtown of Debrecen and around the main road No. 4, furthermore in some places noise reduction was caused by the development of the road network (between Debrecen-Józsa and Hajdúböszörmény, between Debrecen and Látókép around road No, 33, and along roads No. 4808 and No. 4814) .

  • Company Valuation of an Entity Operating in International Accounting Environment
    320-331
    Views:
    699

    Company and asset valuation plays a major role nowadays. Determining the company’s value is a key factor for management in appropriate decision making, and it is a necessary step for individuals who wish to invest and for investors. There are numerous models which utilize different methods for company valuation. In our study we based our valuation on the McKinsey model for a company in an international accounting environment. In the study we present the main attributes of the McKinley model, its structure, which includes the main steps of valuation. We put a special emphasis on the calculation of free cash flow, future balance sheets and profit and loss accounts anticipation as well as future turnover, which highly influences the changes of data in the future reports thus in the company value. The McKinsey model is a discounted cash flow model, in which the company value and the consequent future cash flow can be determined as present value.

  • Determination of the Accumulation of the Heavy Metal Content of the Sediment of River Danube by Plants
    163-170
    Views:
    210

    In these days, the surface waters and their floodplains and oxbow lakes are operating as ecological corridors, although their touristic role is not negligible. The monitoring and saving of these wetlands need for sustain these areas for the future generations. The environmental parameters of floodplains and oxbow lakes is revealed with the analyses of the quality of the water and sediment. The main sampling place of our research is a sediment dump was created by excavation from the Open Beach of Dunaújváros in 2009. In 2010 the whole sediment dump was planted with trees, and many kinds of weeds were also grown here. The main aim of this research is to analyse the heavy metal content of the sediment dump in Dunaújváros. Furthermore, the heavy metal content of the parella (Rumex obtusifolius L.), perennial rye-grass (Lolium perenne) and riparian sedges (Carex riparia) which are growing on the sediment dump were also analysed. The distribution and the accumulation of the heavy metals inside this plant can be also determined with these measurements.

  • Parametric Programming Applied to the Optimal Production Structure in Determining
    375-389
    Views:
    216

    The agricultural planning often the question arises, how the different input (fertilizer, feed, irrigation, etc) from what to use on a production (land, animals) unit basis, and to what intensity. The input transformational efficiency experiments by setting analysis and evaluation. For example examined the nutrient replenishers fertilization experiments, the effect of nutritional values of the feed on the body weight gain, milk production in animal experiments. The input input efficiency to the external environment (weather, soil conditions, unexpected events), the technology used and the biological factors both influence. The farmer must be chosen in each sector, taking into account the magnitude of these inputs and environmental requirements. The economic optimum is usually trying to approach the sectoral level, which serves as the basis for future planning data. The mathematical programming models using relatively simply and quickly determine the optimal production structure. The models provide the specific resource requirements for, and the limitations of the objective function coefficients are calculated on the basis of sectoral. This becomes a deterministic model, and we can get the appropriate sectoral analyzes outstanding results of production structures. Therefore the relationships within sectors directly incorporate mathematical programming model and corporate interests placed above the interests of the industry to determine the intensity of the sectoral inputs. in their article a fertiliser application example, we present the production structure and the plant production sector fertiliser input of a time optimization, in which the fertilizer for specified sectoral relationships appear in the model objective function.

  • Analysis of Smart Photovolatic Systems
    67-75
    Views:
    195

    Nowadays more attention should be paid to the electric power generation wi th renewables. The photovoltaic systems have several benefits. But this systems power output could drastically drop by numerous external phenome. To avoid these, we introduce the so called “TIGO” power opti mizing system features and the monitoring of the deployed system on an existing building. We examine the produced energy for a given time period.

  • Examination of preferences for pork meat and pork meat products among university students
    131-141
    Views:
    286

    The purpose of this study was to examine the preferences for pork meat and pork meat products. The used sample (N=324) for the analysis came from the students of the University of Debrecen Faculty of Economics and Business. The survey was conducted by the form of online questionnaire. The results from data analyzes were based on descriptive statistics, cross-table and correlation analysis, Mann-Whitney and Kruskal-Wallis tests. Based on the results we can concluded that majority of consumers in the sample would be willing to pay more for hungarian and healthier products with less than 50%. Furthermore we can say that have a significant difference between men and women according all factors which used in analysis; have a significant difference between people with secondary and higher education according to perception of manufacturer/brand; have a significant difference between income level groups according to price and healthy eating.

  • Selection of Possible Installation Sites for Sour Cherry Refrigerated Containers and Estimation of Container Volumes to be Installed Using GIS Tools
    108-115
    Views:
    180

    The purpose of this study is to propose the selection of installation sites based on publicly available data and sour cherry refrigeration container specifications, as well as to estimate the number of containers to be installed at possible sites. Today's escalating fuel supply and fuel price extremes make it particularly important to develop a sensible logistics sub-solution in the complex process of production, harvesting, storage, processing and sales. We undertook to develop a geospatial system that can be built and operated economically, its data sources can be updated occasionally or even at regular intervals, it is suitable for producing other outputs with additional descriptive or spatial data.

  • The Use of Additive Manufacturing for Wind Tunnel Simulations
    62-71
    Views:
    259

    The current economical situation requires aircraft operators to start organizing their  activity in the direction of carbon neutrality using innovative solutions.

    The goal of present study is to desing a brand new wingtip device using 3D printing which helps reducing aerodynamical drag, leading to fuel efficiency and less carbon emission with its innovative shape.

  • The Economic and Social Effects of the COVID-19 Epidemic in the European Union over the Past Year, Especially in Hungary
    67-79
    Views:
    2304

    The apparence of the COVID-19 pandemic at the beginning of 2020 affected all countries in the world, entailing major changes in everyday life. In our study – in a one year perspective – we summerize the socio-economic effects of the COVID-19 pandemic on various economic sectors and their consequences for the European Union and Hungary. As a result of the pandemic restrictions the role of some sectors were decreasing considerably, while on the other hand the other sectors emerged and underwent a significant improvement. The growing trend of working from home, as well as the decline of the tourism, the catering service and the entertainment industry has led to a change in the behavior of the population. .    Changes during the pandemic period led to an increase in wealth inequalities.Changes  during the pandemic period led to anincreas  in economic inequality. The transformation of consumers’ values and income situation is having an huge impact on all sectors of the national economy. When reflecting upon the current situation, the following questions arise: When will the declining businesses be able to recover? Will they be able to achieve their pre-pandemic profit level, and if yes, how long will it take them?

  • VET 4.0 and Vocational Teacher Training
    12-23
    Views:
    245

    Vocational Teacher Training is a small but important element of the regional industrial development. Nowadays the state-of-the-art industrial organisations and processes generate new jobs and positions, and additionally, need new competences. To be able to establish the successful carrier of young professionals these requirements have to be taken into consideration. Teacher Training Programmes of Universities provide new generations of Teachers of Engineering and their approach will determine the nature of the teaching process at VET (Vocational Education and Training) schools. Universities have to adapt to the current requirements of the industry and have to support VET with updated curriculums and training methods.

  • Security and Risk management of Intelligent Integrated Institutes
    74-84
    Views:
    211

    The intelligent households are getting more and more popular beside the intelligent technologies. With all the advantages that this can provide, it brings the security risk of the information technology as well. We must deal with those dangers. We have to determine the risks so that we can make proper precautions. This article gives an effective guideline to achieve safety.

  • Parallel Data Acquisition and Processing with Paspberry Pi Clusters
    40-45
    Views:
    199

    Computer network was built from Raspberry Pis, what can solve research task in the filed of building mechatronics. According to the results, it can state the cluster built from Raspberry Pis, can process indoor sensor data effectively

  • Artificial Intelligence in Human Resources Information Systems: Investigating its Trust and Adoption Determinants
    749-765
    Views:
    5102

    With the rapidly emerging trend of employing Artificial Intelligence technologies within modern economics. This study is an attempt to fill the research gap associated with the factors that have influence with the adoption of artificial intelligence in human resources information systems on HR-leaders intention to use it. It empirically investigates the influences that trust, technological readiness, facilitating condition and performance expectancy on HR-professional’s behavioral intention to use AI in HRM. Besides, examine the moderating effect of age and experience on the proposed associations. Data were collected from by online questionnaire from 185 HR managers. A structural framework was introduced to test the relationship between study latent variables. Result exhibited that trust and performance expectancy has a significant influence on HR-professionals behavioral intention to use AI-HRIS. Trust and technological readiness showed a significant influence on HR-professionals performance expectancy of using AI-HRIS. While facilitating condition, organizational size and technological readiness did not show a significant influence on HR-professionals behavioral intention toward using AI-HRIS. Lastly, Age and Experience did not have a moderating effect on trust and performance expectancy association with the behavioral intention toward using AI-HRIS. The findings of this study contribute to the theory development of information technology diffusion in HRM.

  • Level of Digital Competences and the Examination the Relationship Between Unemployment and in Job-Trainings in the European Union
    197-209
    Views:
    363

    In this study we examined the digital competences by the EU Member States between 2015 and 2017 based on data of OECD and EuroStat. We wanted to know, are there any relationship between the unemployment and the level of digital competences. We realised that, in these countries where the percentage of individuals with basic digital skills is higher, there the harmonized unemployment rate is lower, than in those states where the individuals have above-average digital skills. In the case of lower educated states (where the citizens do not have a general digital knowledge), the unemployment rate is higher. We researched the openness of companies towards individuals with different levels of digital knowledge. In these countries, where the more educated people live there provide the comapnies more chance to take part further trainings, than in the less educated countires. We found a moderately strong negative correlation between the group of individuals who have low overall digital skills and in-work trainings. It means, if a country has individuals with a few digital competences, there the organisations will not offer trainings them. According to the available data we could divide the EU Member States in three clusters. These groups are underdeveloped, developing, developed countries. The biggest difference is between these groups in the quantity of skilled people, however the distribution of individuals in the developed group also shows interesting features. We realised in these countries the so-called „reverse competence pyramid”. It means, as the level of skill grows, the number of individuals, who own it, grows as well. As a continuation of the research, it would be worth examining the countries regionally, so it would be clear where are, the "digital kingdoms" can be found. On the one hand this could help the state in the allocation of digital education, on the other hand, it would also improve the position of companies. They could create regional centers in less developed countries, thus outsourcing expensive high added value work.

  • Manufacturing Process Optimization and Tool Condition Monitoring in Mechanical Engineering
    72-89
    Views:
    416

    The optimization of manufacturing and production processes with various computer software is essential these days. Solutions on the market allow us to optimize and improve our manufacturing and production processes; one of the most popular software is called Tecnomatrix, which is described in this paper. Tool condition monitoring is a vital part of the manufacturing process in the industry. It requires continuous measurement of the wear of the cutting tool edges to improve the surface quality of the work piece and maintain productivity. Multiple methods are available for the determination of the actual condition of the cutting tool. Vibration diagnostics and acoustic methods are included in this paper. These methods are simple, it requires only high sensitive sensors, microphones, and data acquisition unit to gather the vibration signal and make signal improvement. Extended Taylor equation is applied for tool edge wear ratio. Labview and Matlab software are applied for the measurement and the digital signal processing. Machine learning method with artificial neural network is for the detection and prediction of the edge wear to estimate the remaining useful lifetime (RUL) of the tool.

  • A proposal for increasing the significance of smart city indicators evaluating green spaces
    370-380
    Views:
    211

    The expected ecosystem services are provided by the urban green spaces only if it is developed according to the interdisciplinary criteria for city level green infrastructure. This paper introduces an analysis carried out on an urban site according to the two systems of criteria. The comparison of the two set of indicators allows for making conclusions and proposal for adopting green infrastructure criteria in the smart city methodology in order to ensure the proper planning of urban green spaces.

  • What Image is Conveyed by the Webpages of Hungarian Higher Education Institutions?
    355-370
    Views:
    249

    This exploratory study analyses the online higher education marketing practice in Hungary. It examines the homepages of all of the state accredited higher education institutions in Hungary. The selected dimensions of the examination are to measure different aspects of openness expressed by the image published on the homepages to their audience. State vs. non-state financed (and as a sub-category of the latter: church financed) institutions are compared along these dimensions, as well as universities vs. colleges (according to their status both before 2000 and present). The main finding of the research is that there is a statistically significant evidence that the homepages expressed different images for the analysed institution groups. Differentiating signals between state financed institutions vs. non-state financed institutions, as well as between universities vs. colleges were identified: the number of pictures published on the main page, the presence of sliders, the accessibility of the website to people with visual impairment and to non-Hungarian speakers, and the access to social media. State institutions and universities were found to publish a more open image via their homepages than the non-state financed institutions and the colleges.

  • Control of Metal Trading Activities, in Particular the Purchase of Scrap Metal
    457-465
    Views:
    309

    Over the past decade, the metal trade was a frequented area of the black economy. The transformation of the legal background of registration and reporting obligations has played an important role in the change of the situation. There were several steps taken to whiten metals trade such as introduction of the reverse charge, then a few years later, the possibility of nationalization, the metal Act and the related decree. From the impact of all these the authors introduce the influence of registration and reporting obligations related to certain acquisitions of enterprises engaged in metal trading activities.

  • Supplier Evaluation Schemes in Case of Different Research Frameworks
    617-624
    Views:
    239

    Performance evaluation is not only important in employer and employee relationships, but also in partnerships between a supply chain’s members. In order to satisfy customers’ needs according to the 7 Rights of logistics, all members of the given chain have to perform properly. To ensure the best performance, supplier evaluation can act as a starting point. Besides continous feedback, supplier evaluation plays an important role in performance development of suppliers. The aim of our research is to develop and introduce innovative supplier evaluation models, which include the advantages of traditional and electronic supplier evaluation forms. In addition to this, these models are visualised, making it easier to understand expectations and information. In this study, the aim is to present two different models the PaTeNt©- SESC (Pató Tetrahedrons of interNational Theory - Supplier Evaluation of Supply Chain) and the Douple Evaluation Platform, based on previous research.

  • Analysis of the Operation of a Vocational Training Institution in the Light of the Models of Educational Management
    51-68
    Views:
    254

    The operational characteristics of educational institutions are substantially influenced by educational policy choices. In July 2015 the establishment of Centers of Vocational Training marked the start of a new chapter in the management of school-based vocational education and training under a new organisational structure. As part of the Centers of Vocational Training, Vocational Trainging Institutions have become member institutions with legal personality . The introduction of centralised management has significantly changed the framework and the way in which institutions, as educational organisations operate, which has had an impact on management and governance processes and thus on the functioning of the whole organisation. According to the different management and governance processes applied in practice in educational institutions, educational institutions can be classified into different models of educational management, whose literature theory we call upon to examine the functioning of a vocational training institution. The aim of our study is to examine the functioning of a Vocational Training Institution in the light of the models of educational management. We will examine the operation of a Vocational Training Institution in the case of a Vocational Training Centre and its member institution operating in Szabolcs-Szatmár-Bereg County. Our study is based on the method of document analysis. In the course of the analysis, the documents of the examined institutions were analysed according to certain characteristics of the key dimensions of the educational management models defined in the literature. The results of the analysis provide an overall picture of the type and nature of the management of the vocational training institution examined.

  • Investments and Their Financing Risks and Risk Management Trends in the Last 10 Years
    184-203
    Views:
    324

    The purpose of our literature review was to understand the state of research related to management of risk of corporation’s investments and their finance within the past 10 years. Nowadays the risk management and problem solving are characterized by holistic approach and complexity - and these tendencies we can see clearly. We need to examine the likvidity, financing and investment questions together, because of the interactions between them. They can influenced the corporate value together. The role of risk management in the investments is the  cash-flow smoothing (we mean: cash-flow generated by investment). The field of corporate finance is noticeably inseparable from other areas of business science (at least in the empirical analyses), and even technical issues, like risk management, have long been considered suitable appropriate in an integrated form. The financial and operational hedging has become indispensable elements of the managerial toolbar. The consequence of crisis (from 2007) promotes the birth of many studies that justify it. The researchers are paying close attention the transaction costs, such as costs of contracts or agent costs, and the losses due to information assimetry. The statements of behavioral finance connection with managerial decisions mean important additives in this field.

  • Microbiological and Chemical Investigation of Drinking Water Samples on the Operational Area of Pannon Víz Zrt.
    151-160
    Views:
    319

    In our research the potable water quality was monitored between 1 January 2015 and 31 October 2017 in the operational area of Pannon-Víz Zrt. The connection between temperature, microbiological load and chemical parameters were investigated. After evaluating data, the following results have been identified. The seasonal changes of the microbiologically positive samples are determined by the contamination caused by Escherichia coli, Enterococci and Pseudomonas aeruginosa. The coliform group and the 22°C and 37°C colony-form units showed no seasonal dynamics. The analysed chemical parameters were below the limit during the examined period. Based on the correlation analysis, there is no correlation between chemical and microbiological parameters.

  • Investigating the Development Impact of the Reorganized Quality Control System on One of the Public Service Provider’s Pers
    226-241
    Views:
    205

    At the investigated public service providers’ personal customer service they did significant changes were made in the field of quality control since April 2017. A method which existed and was used for a long time was modified, which had one of the most important objectives from a management aspect to help the development of the administrators in order to provide high quality. During our research we mostly focused the development impact of the modified system. We wanted to obtain an answer whether the new system is better for promoting the development of the administrators than the former method and to what extent administrators require feedback related to their job as well as whether this system is properly inspected and controlled by leaders. During the research we targeted three focus points related to the development aspect: self-check, constructive feedback and the degree to which seated work is controlled. Based on the results of the investigation we draft such suggestions which can promote efficiency if necessary and possibly even make the operation of the system more efficient.