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• Evaluating the Efficiency of Polyhedral Mesh Elements in Solving the Problem of the Flow around Ship’s Rudder

  241-256

  Amjd Ibraheem

  Views:

  951

  Meshing is one of the crucial key features to the success of CFD based simulations, this study is evaluating the efficiency of polyhedral elements in solving the problem of the flow around ship rudder, using a Reynolds-averaged Navier-Stokes turbulence model (SST k-ω), and compares it to a tetrahedral based mesh, considering that polyhedral elements were neglected in the past due to difficulties in implementing them, this was solved by introducing a tool by ANSYS that converges tetrahedral elements to polyhedral element, and integrating it into FLUENT software, the model was validated by comparing it with previously validated model which used the full version of ANSYS, this study was concluded using the academic version, but still it was able to produce satisfying results in predicting the lift and the drag coefficient, the pressure around the rudder surface, the velocity and the turbulent kinetic energy, finally the mesh quality was evaluated using the orthogonal quality criteria, the results showed the supremacy of the polyhedral elements in saving time and computational resources and improving mesh quality, and keeping high level of accuracy in predicting the results.

• Testing of Micro Switches for Garden Tools

  206-213

  Vivien Sipkás

  Gabriella Bodnár

  Views:

  233

  The aim of this paper is to introduce the design of testing method for the prediction of the life and acceleration methods of the micro switches applied in different type of garden tools. These products will be tested for complex stressing, for example higher temperature, humidity, current load and so on. Therefore, the most important information and multi-factor acceleration models are summarized, the Weibull, the lognormal and the exponential distributions which are suitable for performing and evaluating tests.

• Impression Management Strategies Used by Foreign Students

  127-132

  Mária Ulyhelyi

  Edit Barizsné Hadházi

  Views:

  275

  In this paper, we examined a general human behaviour, the impression management among university students. People are interested in how others think about them. At the organizational level, they can also benefit from being positively judged by others. Effort to create this positive image is Impression Management, which has several measurement options. In this paper, we conducted research on the impressions strategies used by first year international students of University of Debrecen, Faculty of Economics and Business Administration, Bachelor in Business Administration and Management programme. In our analysis we used the questionnaire consisting of 22 questions developed by Bolino and Turnley. We analysed what strategies are typical for the examined student group and to what extent? Are there differences in the strategies employed by men and women and depending on their cultural background.

• Application-oriented Mathematics Education at the Faculty of Engineering, University of Debrecen

  36-42

  Csaba Kézi

  Rita Nagyné Kondor

  Gusztáv Áron Szíki

  Views:

  300

  At the Department of Basic Technical Studies, Faculty of Engineering, University of Debrecen we have been dealing with the methodological reforming of mathematics education for more than ten years now. The recently published course book “Mathematical Tools in Engineering Applications” is the result of this long term creative work. The book presents the applications of the most important mathematical tools (vectors, matrices, linear functions, complex numbers, differential and integration calculus) in the different fields of engineering, natural sciences and economics. The aim of the authors with the recent publication is the presentation and popularization of the above book together with the educational and methodological trend it represents.

• Examination of the Relationship between Renewable Energy and Economic Performance

  234-243

  Hayyan Boubou

  Judit T. Kiss

  Views:

  413

  Many countries are making considerable efforts to achieve solutions to environmental problems that we face today and developing renewable energy resources is one of the potential long-term solutions that constitute an absolute priority from a sustainable development perspective. The usage of renewable energy is one of the critical future challenges to reduce greenhouse gas emission and decrease energy dependency at the same time. Thus, replacing traditional energy sources with renewable ones, like Hydropower and wind power to produce electricity instead of fossil fuel. The objective of this study is to find a relationship between renewable energy consumption, macroeconomic factors, and the environment. There is a reliable and significant (at 1% significant level) association between REC with GHG and GDP and a relatively strong association with EC.

• A Literature Review of Modern Branding

  63-73

  Krisztián Csák

  Csilla Juhász

  Views:

  649

  In the modern business landscape, branding goes beyond identifying products and services; it has become a crucial factor for corporate success. The leadership branding, and employer branding emerges as a key strategic tool in gaining competitive advantage, fostering loyalty, and enhancing engagement. Personal branding, as the conscious presentation of individual values and capabilities, supports leaders in strengthening credibility and trust. Leadership branding encapsulates a leader’s personality and style, serving as an inspiring example within the organization. Moreover, employer branding reflects the corporate culture and workplace values, making the organization attractive to talented employees. The aim of the study is to demonstrate how personal branding, including leadership branding and employer branding, can contribute to the more successful operation of a company, highlighting the synergy between the different levels of branding and their economic and social impacts.

• The Governance of Sports Organizations in Morocco: the Case of the Royal Moroccan Federation of Judo and Related Martial Arts

  38-50

  Omar Hannoun

  Views:

  483

  Governance is crucial for effective sports organization management, particularly as sports organizations increasingly adopt business models. Research inquiries into suitable governance practices in sports have grown, reflecting the evolving landscape of sports management. This qualitative research examined the governance of the Moroccan Judo Federation through semi-structured interviews and analysis using Voyant Tools. Stakeholders, including the vice president, board members, coaches, athletes, referees, technical committee members, and financial manager, provided insights on key aspects of governance. The findings emphasized the importance of strong leadership, effective decision-making processes, transparent governance structures, stakeholder engagement, and ethical conduct. However, challenges were identified in decision-making, stakeholder engagement, conflict resolution, and financial management. Stakeholders highlighted the need for inclusive decision-making processes and transparent and accountable governance practices. By addressing these challenges, the federation can strengthen its governance, support judo's growth, and foster fairness and inclusivity.

• Enhancing Sustainable Production Through Continuous Improvement: Evidence from Nigeria’s Manufacturing Sector

  1-20

  Oluwayomi Oluwayomi Olota

  Views:

  216

  The manufacturing industry in Nigeria has been the so-called cornerstone of economic development since the sector has continuously played a major role in providing jobs and industrial capital. However, there remain issues that impede its progress, including inefficient resource use, unstable regulatory systems, and the need to comply with international market requirements. Specifically, it examined the effect of employee engagement, process efficiency, and resource allocation on Nigeria’s manufacturing sector. A survey research design was adopted, with a total population of 117 employees across five manufacturing firms. A total of 91 participants were administered a structured questionnaire. Data collected was analyzed using PLS-SEM. Findings revealed that employee engagement has the strongest effect on sustainable production (β = 0.412, t = 6.250, p < 0.000), followed by resource allocation (β = 0.237, t = 3.610, p < 0.000), and process efficiency (β = 0.174, t = 2.877, p = 0.004). It concluded that continuous improvement is significantly vital for sustainable production in the five sugar manufacturing firms studied in Nigeria. It is therefore recommended that management of these selected firms focus on developing unique resource allocation strategies, employee engagement, and process efficiency to ensure sustained workforce improvement, thereby achieving sustainable production outcomes.

• Quality Development of a New Type Pharmaceutical Formulation

  112-127

  Szabolcs Erdei

  István Budai

  Views:

  454

  The aims of companies to understand internal and external customer demands in order to improve their existing products and develop new ones. Product development aims at understanding customer demands that may influence the production of the product to be manufactured. As a first step in the process, the customer voice method was used to define demands with measurable parameters. A questionnaire survey was used to prioritise them, which were then compared and ranked using a preference matrix. Within the QFD method, technical parameters influencing the satisfaction of customer demands were determined. A correlation matrix was established and the relationship between the technical parameters was investigated. A competition analysis of technical parameters and customer demands was carried out. From the absolute and relative weights, it is easy to establish the order of the technical parameters, so that the most important parameter in terms of meeting the defined customer demands is the determination of the ratio of raw materials, and important parameters are chemical stability, pharmaceutical formulation and particle size.

• Investigation of the Resistance Force Acting on a Sailing Craft in the Case of a Change of Draft Caused by a Change of Powertrain Using Numerical CFD Simulations

  30-35

  Péter Ficzere

  Emese Lévai

  Views:

  408

  Nowdays In the case of recreational craft, interfering with motor drive solutions is a common workflow due to increasingly strict rules for environmental reasons. When switching from an internal combustion engine to an electric engine, the change in draft varies from boat to boat, but it can be said in all cases that as the mass changes, so does the draft. Because of this, the magnitude of the resistance force acting on the ship also varies. In this paper, we examine, through a specific example, the benefits of a change in dive caused by weight gain at different travel speeds.

• Review of Modern Vehicle Powertrains and Their Modelling and Simulation in MATLAB/Simulink

  232-250

  Attila Szántó

  Gusztáv Áron Szíki

  Views:

  1421

  Thanks to technological advances and environmental standards, as well as changing usage patterns, road vehicles are constantly developing. Electric and hybrid vehicles are playing an increasingly important role in today’s road transport. The most significant changes are probably in the powertrain of vehicles. The efficiency of internal combustion engines increases while their emissions continue to decline. In addition, high performance electric motors, batteries and even fuel cells play an increasingly important role in hybrid and electric vehicles. In this publication, we review the drive systems of current modern vehicles and the types and characteristics of their major components. We also review the available models and computer programs for their simulation, focusing mainly on MATLAB/Simulink applications. Based on this, we can develop our own models and simulation programs which will help us to perform different driving dynamics simulations and to compare the performance, dynamic and energetic characteristics of these powertrains and their components to each other.

• Examining the Movement Differences in the Behavior of Normal and Rack Railway Vehicle

  96-103

  Andor Nagy

  István Lakatos

  Views:

  457

  The rack railway is a special type of railroad. There weren”t much built worldwide, and their number is decreasing. Now, in Budapest, there is a possibility to create an interoperable vehicle, based upon the experience gained from the previously operated line, and all the research regarding its unique characteristics. One from the many important sector of its operation, is the rail/rack/vehicle system. Its mechanical model is far more complex than a traditional railroad vehicle. We will demonstrate its behaviorial differences from a traditional railroad vehicle.

• Do Talent Management Practices Affect Organizational Culture?

  495-506

  Maha Lutfi Al-Dalahmeh

  Krisztina Dajnoki

  Views:

  1229

  The purpose of this paper is to enhance the readers' understanding of the domain of talent management and organisational culture and how  talent management becomes one of the important strategic tools to improve the work environment, specifically as a tool for enhancing the organizational culture. The paper also attempts to probe and aid readers in understanding to what extent talent management affects the organizational culture. This paper is based on secondary research and articles in the areas of talent management, organizational culture and the relationship between them. The author has reviewed the existing body of work on these topics to arrive at the analysis of the relationship between talent management and organizational culture. As well as measuring its impact on the whole organization by reviewing the existing literature.

• Servant, Ethical and Authentic Comparative Analysis of Leadership Styles in the Light of the Challenges of the BANI World

  43-52

  László Kollár

  Anita Pierog

  Views:

  450

  In a globalised and accelerated economy, managers are under increasing pressure to reconcile organisational goals that are independent from human being with the reality of human relationships. The human being, as a being with intellect and senses striving towards happiness, is the focus of positive leadership styles and is their major concern in the field of management theory. In this article, three such positive styles, authentic, servant and ethical leadership principles and their operating conditions are compared using international literature. The literature time span of about two decades shows that the evolution of the ethical leadership literature has slowed down, while the authentic and servant leadership literature has continued to evolve and is still evolving today. The comparative table that appears in this study highlights both commonalities and distinctions, in that, in addition to high moral and ethical standards, the authentic style focuses primarily on the person of the leader, the ethical leader on the ethical standards of the organisation, while the servant leader focuses on the development of the well-being of the subordinate, the other person, even through self-sacrifice.  We intend to use the results of this research to investigate measures of positive styles, preparing the scientific ground for future primary empirical field studies.

• Digitalization Trends and Their Possible Implications to SME Performance: Comparative Study Between Hungary and Azerbaijan

  1-13

  Leyla Mahmudova

  Views:

  436

  This comparative research intends to find similarities and differences in the digitalization level of Hungary and Azerbaijan. Following the state of art in digitalization, further focus is on the digitalization of small and medium enterprises in both countries. The secondary research is done through several international reports and databases collected for years 2018-2022, depending on the availability. The comparison is performed based on four subcategories of digitization areas defined by the European Commission. The study holds its uniqueness due to the absence of comparative research between the mentioned two countries and the indicators used. The results contribute to the awareness, existing knowledge and provide future research insights into digitalization trends of both countries.

• Thermoelastic Problems of Multilayered Spherical Pressure Vessels Subjected to Axisymmetric Loading

  106-115

  Dávid Gönczi

  Views:

  337

  This paper deals with the linear thermoelastic analysis of functionally graded multilayered spherical bodies subjected to constant mechanical and thermal loading. The temperature field is arbitrary function of the radial coordinate, the material properties and the radial body force vary according to power law functions along the radius of the sphere. An analytical method is presented to calculate the displacements and stresses within the multilayered spherical body. The method is expanded to tackle the problem of spherical bodies made from radially graded materials with temperature dependent material properties. The results are compared to finite element simulations and other methods.

• Vehicle Dynamics Simulation in Matlab/Simulink Environment

  36-41

  András Szántó

  Sándor Hajdu

  Views:

  492

  In the following we are researching different methods of vehicle dynamics simulations. Starting from a simple two-wheeled vehicle model, we are showing ways to simulate the movement of vehicles with real suspensions on any surfaces. MATLAB, Simulink and Simscape provide very suitable resources for the above mentioned purposes. The benefits of such vehicle model become obvious because of the fact during the physics simulation we can access all the data we need to simulate any control algorithms for vehicles: in this article we are presenting a simple ABS control simulation.

• International Financial Reporting Standards Convergence Process for Small and Medium-Sized Entities

  1-12

  Görkem Gök

  Views:

  962

  The "International Financial Reporting Standards (IFRS) Convergence Process for Small and Medium-Sized Entities (SMEs)" seeks to address the unique challenges and requirements faced by smaller businesses in adhering to international accounting and reporting standards. This initiative recognizes that SMEs operate in diverse economic environments and have distinct financial reporting needs compared to larger enterprises. The primary purpose of this convergence process is to enhance the relevance, accessibility, and practicality of IFRS for SMEs, fostering consistency in financial reporting practices across global markets.A project to create accounting standards appropriate for small and medium-sized businesses (SMEs) is being worked on by the International Accounting Standards Board. This abstract provides an overview of the convergence process involving International Financial Reporting Standards (IFRS) for Small and Medium Sized Entities (SMEs). With the global landscape of financial reporting constantly evolving, the integration of IFRS tailored specifically for SMEs marks a pivotal transition towards harmonizing financial reporting practices. This paper examines the essential elements and implications of this convergence, addressing the challenges and benefits faced by SMEs as they align with these international standards. The analysis delves into the driving factors behind the convergence, including the necessity for a unified and transparent financial reporting framework, aiming to facilitate comparability and accessibility of financial information across borders. Furthermore, the abstract discusses the potential impact on SMEs' financial reporting quality, decision-making processes, and access to capital. Through a comprehensive review of the convergence process, this abstract seeks to contribute to the understanding of the significance and implications of adopting IFRS for SMEs, thereby providing valuable insights for practitioners, regulators, and stakeholders in the financial reporting ecosystem.

• The Role of Employee Participation and Resistance in the Success of Change Management

  22-30

  Roland Filep

  Mária Ujhelyi

  Views:

  834

  Successful change in the lives of organizations has played a particularly important role in the recent turbulently changing decades, and leadership-follower relationships need to be addressed in order to maintain performance. Participation should be ensured for members of the organization and emerging resistance should be addressed. The subject of my research was to examine whether the assessment of the success of change is influenced by the provision of opportunities for employees to make suggestions and their opposition to change. By performing chi-square tests, I came to the conclusion that if the opinion of the worker is heard, they are more likely to judge the change to be successful, however, the manager is not affected by the involvement of the employees in this. However, there is a correlation between employees' resentment to change and the success of change, both from the employee and managerial side, change is more unsuccessful if resentment develops. Based on the results, both factors are important. It is worth drawing the attention of managers to the need to ensure participation, as failure to do so can lead to dissatisfaction among employees, which can also have a negative impact on the success of the organization.

• Physical Internet – a Novel Application Area for Industry 4.0

  152-161

  Eszter Puskás

  Gábor Bohács

  Views:

  350

  The Physical Internet (PI or π) is one of the most decisive ideas for future logistics systems. The idea behind it is to implement logistic systems which apply the principles of Internet information flow. Simultaneously technological innovations of Industry 4.0 have also appeared. Our current research deals with the applicability of the tools of Industry 4.0 technology in the PI system. Following the literature review we analyse the individual technological tools that could improve the functioning of PI components. Subsequently we will detail the usability of a specific Industry 4.0 tool and finally determine the future research steps.

• Simulation of BLDC Motor Drive Systems for Electric Vehicles Using Matlab Simulink

  48-52

  Nemes Dániel

  Sándor Hajdu

  Views:

  660

  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.

   

• Why Public Sector Projects Fail or Succeed in Pakistan- A Model for Evaluating Impact of HR Management Practices on Project Success

  77-90

  Muhammad Rizwan Hussain

  Views:

  1938

  Employees are the most important assets of an organization. As quality human resources become scarce, companies need to pay more heed to the satisfaction and motivation of their employees. If employees are motivated towards work, then it is likely to yield better results. This study will examine the role of Human resource management (HRM) practices upon New product development (NPD). NPD involves technical, marketing, and financial risks organizations undertake for developing new products and services. Effective project planning and control are valuable for decision-making. The analysis of the impact of HRM practices on NPD, project success, and organizational benefit is based on data collected using a cross-sectional design via a survey questionnaire. The questionnaire consisted of items related to HR practices, New product development, Project Success, and Organizational benefits adapted from previous studies. Respondents working in 10 large-scale public sector projects executed by National Database & Registration Authority, Pakistan were selected for the study. Therefore, the results of the study can be generalized to similar projects executed by the public sector in Pakistan. From the findings of data analysis, it has been concluded that there is a significant association between HR practices and project success, but no significant relationship has been established between new product development and organizational benefit. Therefore, it can be concluded that HR management practices have a significant impact on public sector project success in the case of Pakistan.

• Accuracy Analysis of Two Parallel Manipulators

  38-45

  Sándor Hajdu

  Dávid Bodnár

  Views:

  286

  The aim of the study is to analyse and visualize the accuracy of two parallel manipulators. The kinematics are calculated using vectors and the Newton method. The accuracy is calculated based on the actuator errors, visualization is done with color shading. Calculations was done using MATLAB

• Generational Transfer Among Family Businesses on the Fields of Reputation and Organizational Culture – Research Plan

  102-108

  Csilla Polster

  Views:

  271

  Aim: The aim of this paper is to generally introduce the topic, themes and relevance of the research on which my PhD thesis will be based. The research will focus on change of generations among Hungarian family businesses and deals with changes of leadership, organizational culture and core values, related to the management/owner succession. The research needs to apply knowledge from four disciplines ‒ PR, organizational culture, economic (family businesses) and leadership ‒ so it is multidisciplinary in nature. Following a current step of the research-process will be presented.

  Methodology: The Family Business Barometer results were applied for gaining information about the plans related to the future, generations, and so on of European Family Businesses. Then three Hungarian family businesses were interviewed in the frame of a panel-discussion organized by the Commercial and Industry Chamber in Győr-MosonSopron County.  These three family businesses were the Borsodi Műhely, the Biotextima and the Leier.

  Findings: All in all between 2013 and 2016 most of the family businesses seemed to be confident about the future. In this aspect just a few family businesses were neutral in this time period. Unfortunately, there were family businesses who had a negative attitude for the future. The deliberate and detailed planning of the handover, the selection of a determined date for handover, the determination of the older generation to really do not interfere in affairs, the cohesive role of the family, family activities, the support from the family could lead to the effective change of generations.

• Comparing higher education preferences with labour market needs

  382-392

  Tímea Gebei

  Szilvia Vincze

  Views:

  572

  Hungarian institutions of higher education play an important role in national economy: they ensure intellectual labour with appropriate knowledge and professional competencies for Hungary in all profession fields. If the rules of private sector are applied for these institutions – interpreting it within a certain framework as the quality of education and research has to be maintained and there are social benefits associated with them -, they owned by the state, their management is the institutional leadership and their consumer is the labour market. Thus, training programmes must or should be developed in accordance with the needs of labour market. It represents a major challenge, even without taking into consideration other factors, since future requirements should be aimed (at least a 3-5 year training period later) – along with a rapid technological development. Even if the state makes significant efforts to adapt training programmes to meet the requirements of the labour market demands, students who want to further their education pay limited attention to these factors in their educational decision-making. Partly for this reason, career transition or shortages may occur in the case of certain professions. This paper seeks to address to what extent the most popular training programmes meet the expectations and to what extent the degree earned may be regarded as a ‘success’ in the labour market; moreover, if they do not overlap each other, how much applicants prefer those training programmes which are to be considered the most successful based on recruitment information. Admission statistics of Education Department and database of DPR provide the necessary information for the period 2010-2017 and these data sources enable authors to follow-up students from application to higher education until employment.