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• Linear elastic finite element investigation of titanium specimen produced by Additive Manufacturing

  85-91

  Dániel Szabó

  Views:

  78

  Nowadays orthopaedic implants are mainly fabricated from solid material (titanium alloy). The mechanical properties of these implants are much stronger than human bone tissue’s properties, and this leads to fixation problems and a short lifetime, but today these problems can be eliminated with the usage of metal additive manufacturing. The mechanical properties of the implants can be influenced on demand with the variation of the material structure using different sizes and types of unit cells for building up its structure.

• Most Effective Management Style for Modern Workplace

  402-411

  Frya Adil Namiq

  Views:

  3300

  There are managers who are coaches, who are democratic, who are dictatorial and those who are consensus builders. All styles come with positives and negatives, many managers employ a combination of all to make progress. Ultimately, the managers that have the most successful teams are the ones who help each individual member of the team to grow. To manage the best way possible, you need to be strict but gentle and, employees will probably feel good and happy in a medium where inclusivity is a need. Balance in the work environment is imperative for empowering employees from all background to feel certain about their potential and accomplish their best. The higher the self-esteem, the more beneficial the employees are. People from different background can offer variety of abilities and experiences, aptitudes and encounters that might be of advantage to the organization and their work execution. Although some hybrid of aptitudes can be gainful with regards to helping each other, a mixture of skills and abilities among the group likewise implies that workers can gain from each other. By working nearby individuals of various backgrounds, experiences and working styles, creative ideas can be conceived then discussed among each other and offering feedback and proposals. Though one individual might be extraordinary at out of the box thoughts, another individual may have the important experience to execute it; so it is fundamental to play on every individual's skills, abilities and work together within the group.

• Comperative Economic Analysis of the Determining Leagues of European Clubfootball

  22-35

  Bence András Bács

  Views:

  456

  Nowadays sport is not just all about entertainment, or about social cohesion but also it has serious economic and business aspects. Sporteconimics is an individual concept and sector. Sport businesses are contributing  more and more to national incomes. Football business are specially important parts of this complex system called sporteconomics. The aim of my research is to create an economic and also comparative analysis of the five top European football leagues, also called as the “Big5” which are responsible for 74% of the total football revenue in Europe. By the analysis of the 2019 UEFA report it can be stated that in these leagues more than 60% of the competing clubs achieved positive operating profits, but the structure of their revenues warns them to look for opportunities to increase their operating revenues. According to the data it is clear that wage cost is the most significant cost element in the industry as they cover 53-68% of their total revenue. These statements set the course for the economic development of European football. The management of these outstanding football clubs may give example to the ones falling behind including Hungarian football businesses.

• Frequency Domain Analysis of Tractor Tyre Enveloping Properties

  223-229

  Boris Stojic

  Views:

  70

  Main source of vibration excitation for off-road vehicles are ground profile undulations. Most unprepared terrains are characterized by wavelength of unevenness that is of the order of magnitude of the contact length between tire and ground, so that, due to its shape and elasticity, tire actually behaves as geometric low-pass filter transforming real road profile geometry into effective vehicle vibration excitation. Since this effective profile represents real vehicle excitation, it is of interest to study this filtering behaviour in more depth. In this work, investigation of this kind of tire response has been studied for agricultural tractor tire rolling quasistatically over singular road obstacle. Frequency analysis of road excitation and tyre response was carried out in order to obtain their spectra and frequency response function magnitude of the tyre as filter was obtained by dividing input by output spectra. Final assessment of frequency response function magnitude was obtained by averaging instances obtained for different dimensions of input obstacles.

• Labor Market of Enforcement of People with Technical Qualifications in Hungary

  6-10

  Andrea Demeter

  Views:

  103

  The main purpose of my research was to investigate the validity of those with technical qualifications in the territory of Hungary.

• The Role of Renewable Energy Sources in Energy Production and Use

  678-688

  Margit Csipkés

  Views:

  296

  The role of renewable energies in energy management is growing both in the European Union and in Hungary. The use of renewable energy sources is already quite large (transport, heating, lighting, etc.) and it is advisable to deal with these energy sources in the year 2020. The use of energy from renewable sources can reduce greenhouse gas emissions and reduce dependency on the continuously problematic oil and gas market. A review of energy data over the last 10 years shows that renewable energy sources are playing an increasingly important role in the European Union. I support this finding by the fact that the share of energy from renewable sources in gross energy consumption has almost doubled in the last few years.

• Grounds of changemanagement

  257-267

  Zsuzsa Gál

  Views:

  607

  Organisations of the 21st century exist in a permanent change. Change management in business management deals with the analysis of directed and planned changes. However, it does not consider spontaneous changes.Change has been addressed in social science since the 1970s and is of growing importance. As in many cases adapting to the change is crucial for the organisations to survive. With the changeThese spontaneous changes are chaotic processes that are carried out without control. In this paper I present the evolution of changemanagement, and the most important questions of changes.

• Submerged aquatic plant (Vallisneria spiralis and Egeria densa) utilisation as a biogas cleaner and feedstock of co-digestion

  172-180

  Gábor Nagy

  Views:

  178

  Biogas was produced from sheep manure and two types of submerged aquatic plant (Vallisneria spiralis and Egeria densa). The gas cleaning was carried out by a water scrubber, where a significant part of CO2 and H2S can be separated from the gas. A part of water from the scrubber was circulated through an aquatic plant growth tank and the growth of used plants was examined. Addition of E. densa to sheep manure increased gas yield by 8% and the mixing of sheep manure and V. spiralis resulted in 21% increase in gas yield. With the used scrubber, 70-80 vol% methane content can be reached in the cleaned biogas, and the water from the scrubber (which contained dissolved CO2 and H2S) resulted in 56-87% increase in size as opposed to 12-44% increase in the control group.

• Experimental Study Regarding The Influence Of Compliant Hinges Geometry In Mechanical Structures

  125-131

  D. Lates

  Marius Casvean

  Views:

  86

  In this paper an experimental study will be carried out, on the influence of geometry, using different compliant mechanical couplings. In the first part of the paper will be presented the compliance of the couplings and a number of consecrated works on this theme will be quoted. The article continues with the case study made on three types of compliant joints. These joints and the mechanics that substitute them will be presented. Towards the end of the paper we explain the experimental method and its results. The final ideas concerning this work will be filled out by conclusions and research directions.

• Statistical Evaluation of University Student’s Motivation and Personal Competency with Principal Component and Cluster Analysis

  365-374

  Richárd Nagy

  Péter Balogh

  Views:

  198

  The aim of the research is to do a statistical evaluation of agricultural and rural development engineer student’s motivation and personal competency. It sums up the late generation Y’s characteristics and challenges. To be a successful, graduated employee, not only the skill is needed but the personal competency as well. Altogether, 121 filled out questionnaires were collected from the students which were the prime source of the research. They had to evaluate influential factors to their motivation level and competence. The database was analyzed with descriptive statistic methods, principal component and cluster analysis. Studying the personal competency, five different factors were divided based on Belbin’s team roles and four clusters. The four clusters were established by the five factors. Analyzing the student’s educational motivation four different components were divided: the need of performance, social entertainment, the benefits of learning in the near future and the reach of the financial freedom. Based on the four components, generating clusters was not possible due to the significance level of the K-means cluster analysis because it was higher than 0,05 in every grouping variables.

• Analysis of the Policy Background of Transport Related Use of Renewable Energy

  124-129

  Tibor Princz-Jakovics

  Views:

  91

  The EU energy policy prioritizes the following principles: sustainability, competitiveness and security of supply and addresses the reduction of greenhouse gas emissions as a priority. The related EU policy (including the White Paper on Transport) outlines these principles, identifies goals and opportunities for action. At company level methodological guidelines and standard procedures can be used to assess the carbon footprint of the organization, to generate efficiency goals and to prepare action plans. In the Hungarian policy framework, a comprehensive National Sustainable Development Framework Strategy defines the basic principles for the analysis of the sectorspecific or regional strategies. Sustainable Energy Action and Climate Plans (SECAPs) integrate energy and climate issues and include interventions and improvements for the better use of renewable energy sources in transport at municipal level. As a summary it can be stated that exploration of the policy background would needed to influence the use of renewable energy sources for transport and definition of the development goals can help economic organizations to transform their mobility patterns and reduce related carbon footprint.

• The Landscape of Civil Society Organizations in the Economy of Kosovo

  334-343

  Kushtrim Vllasaj

  Views:

  273

  Civil society organizations (CSOs) in the scientific literature have been studied broadly from various aspects such as cultural, political, social and economic. But as far as the last one is concerned, there is still a research gap because there is a lack of study about their contribution to economies under development, such as Kosovo, and which must be filled because of its importance. This paper tends to analyze the present situation of CSOs in Kosovo and their potential contribution to economic activity. Highlighting the activities, the structure and the place of these organizations in the economy will be the approach, in the beginning, to pave the way for further study of specific areas related to them. The methodology established contains analyses of secondary sources that are done by using data from the Ministry of Public Administration of Kosovo, Kosovar Index of Civil Society which is a regular report of the Kosovar Civil Society Foundation (KCSF), and other supplementary data. However, this will proceed after the scientific conceptual issues of CSOs and their place within the economy. Finally, the results show that civil society in Kosovo is very diverse with organizations in different sectors, and the economic activity sector consists of mostly agricultural NGOs.   In transition countries, CSOs are seen as an alternative that improves a particular sector. Thus far, there are over 10,000 organizations established in Kosovo, but relative studies suggest only 1000 to be active. Furthermore, their activity and contribution to economic development is little known so far, while the main problem of the economy remains unemployment.

•  The Construction History and Photo Scanner Survey of the Minorite Church in Nyírbátor

  53-66

  Olivér Turi

  Views:

  69

  The medieval Minorite church of Nyírbátor  suffered serious damages and became abandoned at the end of the 17th century. In the 18th century, the baroque reconstruction of the church began, and later a second period of Baroque modifications took place. After this, the church remained untouched for a long time. Then, in the 20th century once again renovations were deemed necessary, because of its poor condition at the time. During the 19th and until the end of the 20th century, several restoration works and archaeological excavations took place, which focused on certain aspects of the church. In this article, I would like to present a summary of the notes concerning the construction history of the church and the results and methods of the photo scanner survey I carried out.

• A Best-worst Scaling Usage in Marketing Research

  140-151

  Bertold Oláh

  Views:

  105

  Best-worst scaling (BWS) is a method of data collection and / or a theory of how respondents give the first and worst rankings in a list. In my article, I look at what best-worst scaling (BWS) is, what areas it is used to, and what the method itself is. I then turn to the BWS method, within which I examine its element: the BWS object case (case 1), the BWS profile case (case 2), and the BWS multi-profile case (case 3). I will detail the use of BWS in marketing research, and then compare the Likert-scaling method and BWS. I summarize my conclusions at the end of my article.

• Compliant Mechanisms in Progress and Development Of Modern Technology

  186-189

  Daniel Lates

  Marius Casvean

  Views:

  98

  In this paper, the compliant mechanisms will be presented. There will be presented some representative works that have brought progress and development in modern technology. Examples will be presented from simple concepts such as a tweezers, staples, to mechanical clutches, pointer and micro-compliant mechanical structures.

• Measuring and Developing Color Aptitude of Students at High Schools

  58-70

  Erika Perge

  Views:

  107

  The tutoring project called „ Chromatic sensation” will be executed via the project of the University of Debrecen titled EFOP-3.6.1-16-2016-00022 „Debrecen Venture Catapult". The aim of this tutoring project is to develop the students’ sense of colour and their ability to communicate through the use of colours. Our project is recommended to high-school students who might want to engage their further education in the fields of engineering. This paper presents the results of our research where ability to sense brightness differences and saturation differences of students completed their high school studies were tested, and discusses our skill development tools and their applications as an integrated part of our research.

• Labor market effects of health promotion on human capital

  591-602

  Péter Gottfried

  Views:

  453

  Today, workplace health promotion is increasingly present, both domestically and internationally. In my research, I used literature analysis to show how workplace health promotion programs, including physical activity, how affect employee earning capacity and productivity. Human capital is a significant factor in productivity. Human capital can be defined, that the human inner, inseparable features and characteristics of a person to which is invested and, as a result, increases the productivity of the individual. Investments can include health spending (health promotion programs), costs of extra-curricular lessons and time to find the ideal job.

  I’ve been used secondary data collection during my research. In my research I have reviewed the source of literature on health promotion and physical activity primarily. After reviewing the literature, consequence of the research that investing in health, including investing in physical activity, it also contributes to improving health, as well as increasing life earnings and productivity at work.

   

• Trends in the Internet of Things (IoT) and Influence on the Industries’ Progress

  176-187

  Vahid Zeynvand Lorestani

  Views:

  159

  This research aims to investigate the critical role of the Internet of Things in the future of industries’ progress. For this purpose, a survey of 250 top managers across 13 industries has conducted. The objective was to find their view of point about what short and mega trends, in which sector will have the most considerable influence in the five years as well as 30 years ahead. Moreover, various technologies are also identified that will have the most importance in the future according to the majority of the respondents, such as Internet of things, Automation and Artificial Intelligence, and, on the other hand, the segments that capital expenditure is currently being directed towards, such as Energy Efficiency and Personalisation of Services.

• Possibilities of the Reclamation of Wastewater in Small Abattoirs Combined with Rainwater Harvesting

  115-125

  Gabriella Hancz

  Views:

  57

  The purpose of the study is to review the extent to which waste water from small mobile slaughterhouses can be reclaimed along with the basic cases and the purpose for which this can be realized. Keeping the criteria of sustainability in mind, I identify the possible and at the same time reasonable combinations of technology, highlighting and presenting in more detail those that include the utilization of waste water and the utilization of rainwater. I will describe the limiting factors - site features, environmental protection and health regulations - which are decisive in which alternative can be chosen during a specific installation.

• International Experiences of Introducing Dual Training Based on Examples from Some Countries

  Katalin Toth

  Views:

  153

  In Hungary, dual training was introduced in 2015.  Dual training is a response to the needs of the labour market and has become increasingly popular since its introduction. Dual training is also playing an increasingly important role in higher educationin many countries, helping to modernise education, the knowledge transferred and fostering stronger links between companies and universities. The aim of this article is to present the dual training system and the international experience gained over time, drawing on the literature available on the subject.

• Designing Aspects and Classification of Bearing Industry Box Handling Apparatus

  325-334

  Zsolt Tiba

  Dániel Fekete-Szűcs

  Views:

  95

  It has been an accepted tendency in the industrial practice since the last third of the 20th Century to decrease the living labour demand of the manufacturing processes. One of the main tools of it is the automation of production. In the design, the construction and the programming of the developed automata, the results of electronics, informatics and mechatronics can be used. All of the scientific fields mentioned above undergo intensive development. By the application of the results achieved in the design of the applications, the monotonous, dangerous and tiresome work not requiring expertise can be assigned to machines. In the longer run, the application of the automata is beneficial also in financial aspect, since the costs of living labour are continuously growing, while that of the mechatronic and technological devices show a rather decreasing tendency. Reliability is also an important aspect. It is well known for everyone that a well-designed and programmed automatic device performs its task without mistakes. If there is any objection or breakdown, on the basis of the currently valid safety technology rules, the machine stops, does not trigger any damage and after its repair, work can be continued.

• Boundary Value Problem for a Heated Nanofluid Flow in the Presence of Magnetic Field

  58-66

  Krisztián Hriczó

  Views:

  82

  The aim of this paper is to introduce some new numerical results on the magneto-thermomechanical interaction between heated viscous incompressible magnetic nanofluid and a cold wall in the presence of a spatially varying magnetic field. The governing nonlinear boundary layer equations are converted into coupled nonlinear ordinary differential equations by similarity transformation. The ODE system is solvable numerically for example using higher derivative method. The investigation is focused on the influence of governing parameters corresponding to various physical conditions. Numerical results are exhibited for the dimensionless wall skin friction and for heat transfer coefficients at the wall, along to distributions of the velocity and the temperature.

• Analysis of Labor Market Indicators in the Northern Great Plain Region in 2018 and 2022

  1-18

  Lilla Csástyu

  Views:

  30

  In my study, I analyze the labor market indicators of the North Great Plain statistical region for the years 2018 and 2022 in order to map the regional labour market characteristics based on the indicators. One method of the analysis is the Beveridge curve. This complex analysis method graphically illustrates the evolution of the relationship between the unemployment rate and the proportion of vacant positions typical of the region under investigation. The results of the analysis can draw attention to possible problems in the labour market in the region. I examine the secondary statistical data in parallel with the available related literature.

• Staying Employed and Employing Others: Leadership Styles and Management Strategies of Proprietors of Micro Enterprises in Developing Countries

  408-419

  Peter Akpamah

  Views:

  204

  This study sought to find out the leadership style and management strategies of the proprietors of micro enterprises that have enabled them to stay in business this long and offering employment to several others in the midst of unfavourable economic conditions in developing countries. Management strategy and leadership style are complementary in pursuing organizational goal. Though, literature on the subject reveals that not much research has been done on the survival of micro business on the African’s continent regarding owners’ management strategies and the leadership style. We used mix methods in data collection and purposive samplings of thirty (30) micro enterprises’ proprietors were interviewed. The result reveals that owners of micro business practice multistrategies in their organizations. The Study found out that the Laissez Faire or Free Rein Leadership and the Bureaucratic Leadership were not practiced by any of the research participants. However, Authoritarian Leadership with strict instructions dominated Democratic Leadership and appeared to have been very effective and yielded result in most micro businesses.

• Neural Network Based Enveloping Model of Agricultural Tyre

  214-222

  Boris Stojic

  Views:

  69

  The vibration properties of agricultural tractor’s tyres significantly influence its response in terms of the exposure of the human operator to mechanical vibrations, which is still one of the key problems in the design and exploitation of tractors. The behaviour of the tyre in this sense is significantly influenced by the mechanism ofgeometric filtering of the short-wavelength unevenness of the unprepared ground mostly encountered by tractor during in-field operations. Herein, this aspect of tyre behaviour was studied with tyre rolling quasistatically over singular obstacle. Based on experimental results, neural network based model of tyre enveloping behaviour was developed. Main model properties are high computational efficiency, simplicity regarding number of input quantities and absence of the need for explicit parametrization etc. Main shortcomings of modelling approach used are high developing effort, labour-intensive experimental preparations and lack of flexibility regarding tyre design and operating parameters