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Comparison of the Euler-Bernoulli- and Solid Models of Three-Point Bending Test Specimens
53-68Views:307For hand calculations, the Euler-Bernoulli beam model has become widespread in engineering practice due to its simplicity and accuracy. In the present study, I compare the state variables calculated based on the Euler-Bernoulli model of a crack-free concrete beam and a crack-free concrete beam reinforced with FRP bars with the result of the three-dimensional solid body model.
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Secondary School Workshop About Dynamics Supported by Computer Software
84-90Views:206In the framework of the “Debrecen Venture Catapult Program (EFOP-3.6.1-16-2016-00022)” the colleagues of the Department of Basic Technical Studies of the Faculty of Engineering of the University of Debrecen worked out workshops for secondary school students. One of the above mentioned workshops is the „Dynamics workshop supported by computer software”, the topic of which is the experimental and theoretical study of dynamic problems using highly developed computer software. Apart from describing the above mentioned workshop and the experiences related to it, we also present the reactions of the students, and describe how the workshop contributes to their widening knowledge.. Furthermore, we also analyse what knowledge, skills and information students would need to be more creative, motivated and initiative and this way more successful in their studies and at work, as well as in their everyday lives, in the field of engineering. In the end, as a conclusion, we make recommendations concerning further improvements of the workshop.
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The Situation of Digitization in the Hungarian Food Processing Industry
196-209Views:545Thanks to various technologies, such as nanotechnology, the next decades will completely transform the individual production processes and sectors. With the rapid advancement of information technology, the digitalization and automation of industrial processes pose new challenges for food business operators. Hungarian food companies will be able to keep up with their competitors and be the winners for the next decades if they can successfully adopt these technologies. However, this requires a strong focus on digitization, digital strategy, and directing investment, technology change and R&D activities in this direction. Digitization is one of the decisive directions of the future, which is why I felt it essential to study the level of digitization of Hungarian food companies, IT infrastructure and Internet usage, the use, and role of enterprise management systems, decision support and business analysis tools, and business readiness, Industry 4.0 technology change. Based on the 205 evaluable responses to the questionnaire, it can be said that only a tiny proportion of Hungarian food companies have a digital strategy and only a few have digital transformation.
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Topology optimization and rim design
92-101Views:491A goal of this article is to show the development of the car wheel rims along with the progress of the manufacturing technologies over the past few years. To achieve this goal, topology optimization and generative design usage have been reviewed in this work. The research has focused on the main factors, which affect the life of car wheel rim, and it has shed the light on the effect of the topology optimization and the generative design on the manufacturing of the car wheel rims. Since the main factors above-mentioned are the: forces, material preferences and topology optimization, the study has covered the results of the studies made on each part along with the technology progress. Moreover, the article has explained the methodology main steps of the topology optimization and the generative design and their principles.
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Dependence of the Passive Force Fp From the Revolutions, back Engagement of Cutting Edge Ae, Working Engagement of the Cutting Edge Ap During Milling
72-79Views:311In this contribution is analysed the force component of final force (passive force) by peripheral milling operation. Therefore, the main parameters that had influence to independent variable were revolutions, back engagement of a cutting edge ae, working engagement of the cutting edge ap. The article deals with the issue of milling in material AlMgSi0.5 (aluminium alloy). Specifically evaluates the force component with respect to change of revolutions (4000/min., 5000/min., 6000/min.), working engagement of the cutting edge ap (1 mm, 2 mm, 3 mm) and back engagement of a cutting edge ae (5 mm, 10 mm, 15 mm). The Alfaflex process fluid with 7% concentration was supplied in an amount of about cca 10 l/min.
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Business Students’ Attitude to Social Responsibility
1-10Views:420The companies’ most important goal is the satisfaction of consumers’ needs and the profitmaking. But nowadays the companies have to deal with the activity of corporate social responsibility, too. Therefore it can be interesting to research about the next questions: can ethics be taught? Do we have to teach ethics in the schools and especially in the business schools? What are the students’ attitudes toward the social responsibility? Are students sensitive and open-minded connection with this issues? The aims of the study were to examine responsible management attitudes among business students at the University of Debrecen (Faculty of Economics and Business). We draw their CSR pyramid (based on Carroll model) and present their opinion in reference to business education’s role in social issues.
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X/Y emberkép hatása a teljesítményre változó környezetben
429-440Views:733A vezetési stílus kérdésköre kutatott terület, több elmélet és modell is született az elmúlt évtizedekben, ezek közül az egyik legismertebb a McGregortól származó X/Y elmélet, amely nagy múltra tekint vissza, mégis máig foglalkoztatja a kutatókat. Az utóbbi években számos olyan elemzés is megvalósult, amely a stílusnak a szervezeti teljesítményre gyakorolt hatását vizsgálta objektív vagy szubjektív mutatók használatával. Ebben a munkámban az X/Y elmélet alapjainak, a családi vállalkozások meghatározásának és a teljesítménymérésre tett legutóbbi kísérleteknek a rövid áttekintésén túl családi vállalkozások vezetőinek körében végzett empirikus kutatásomat mutatom be. A kutatási kérdéseimmel (K1, K2) arra kerestem a választ, hogy van-e összefüggés a vezető McGregor-i emberképe és a vállalkozás teljesítménye között. A teljesítmény mérőszámaként korábbi kutatások nyomán objektív számviteli adatot, az értékesítés nettó árbevételét vettem alapul, a 2008-as gazdasági válság idején a vállalkozók vezetői is elsődlegesen ebben – az értékesítési forgalom változásában – mérték a válság hatásait. A korábbi, X/Y emberkép hatásait vizsgáló kutatások a válság lehetséges befolyásoló hatásait nem vették figyelembe, indokolt lehet ilyen tekintetben is elemzéseket végezni, ezért az első kérdésemben (K1) az X/Y emberkép és a 2008/2012 -i teljesítmény közötti összefüggést vizsgáltam, ezzel lehetőségem nyílt a 2008-as gazdasági válság induláskori (2008) és a vezetők előzetes várakozása szerint fellendülést hozó 2012-es év teljesítményének összevetésére. A kapott eredmények a korábbi kutatási eredményekhez hasonló képet mutatnak, az Y elmélet képviselői eredményesebbek, amelyet a kereszttábla-elemzés szignifikáns eredményei is megerősítettek. Második kérdésemben (K1) a gazdasági válság időszakának átugrásával a K1-hez képest más időhorizonton (2008/2017) vizsgáltam meg az X/Y elmélet szerinti lehetséges összefüggést. Ez utóbbi (K2) esetben a K1-től eltérően statisztikailag nincs kimutatható összefüggés a változók között, viszont az arányok arról tanúskodnak, hogy az Y emberképpel rendelkezők ebben az időtávban is sikeresebbek forgalomnövelés tekintetében. Az attitűdök nagyon nehezen formálhatók, viszont az X emberképpel rendelkező vezetőknek érdemes lehet felülvizsgálni az emberekről alkotott vélekedésüket, változtatni a hozzáállásukon, mert az eredményekből kitűnik, hogy mérhetően sikeresebb az, aki Y emberképpel rendelkezik. A vállalkozások többségénél aktuálissá váló generációváltás esetében a kapott eredmények tükrében azt is érdemes megfontolniuk a stafétát átadó vezetőknek, hogy milyen emberképpel rendelkező utódra bízzák a vállalkozás további irányítását.
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Assessment of the Working Ability of Persons with Disabilities and Reduced Work Capacity
36-52Views:847Employment of persons with disabilities and reduced work capacity falls significantly behind that of non-disabled persons both in our country and the European Union. According to research findings, the low employment rate is partly due to discriminatory attitudes towards the group of employees concerned. In the labour market integration, apart from the attitudes of the employers, the approach of the employees working for the institute has also got a significant role, as they are the ones who as colleagues work together with persons with disabilities and reduced work capacity day by day.
The research findings presented in this study focus on the research question whether the 747 employees who participated in the questionnaire survey make a distinction between persons with disabilities and persons with reduced work capacity on the grounds of their ability to work. If so, what kind of differences are noticeable and what factors have a positive impact on their approach? What is characteristic of the employees with higher level of inclusive attitudes?
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Strategic Role of Environmental Factors in the Operation of a Manufacturing Company: A Synthesis of Three Analytical Models
56-74Views:356Nowadays, the operations of companies are influenced by increasingly complex internal and external factors, the systematic examination of which is essential for conscious strategy-making. The relevance of this study lies in the context of global economic instability, rapid technological advancement, and intensifying market competition, all of which present new challenges for organizations. The aim of the research is to demonstrate how the analysis of environmental factors can support strategic decision-making, with particular emphasis on a specific company case. The analysis was based on three established methods—PESTEL analysis, Porter’s Five Forces model, and the SWOT framework—which together enabled an integrated examination of macro- and micro-environmental factors as well as internal resources. The results highlighted several key strengths of the company, such as professional expertise, international presence, and the quality of customer relationships, while also identifying several areas in need of improvement, particularly in terms of pricing strategy, digital information accessibility, and internal communication. The novelty of the study lies in the combined application of the three analytical tools, which revealed interrelated insights and served as the basis for well-founded recommendations aimed at enhancing strategic flexibility and strengthening competitiveness.
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The Concept of Public Works in India
271-276Views:268The objective of this paper is to understand the concept of public work in India. Nowadays we may approach a wide and broad understanding of public work on international level. One aspect is working for the government. Another one is associated with fighting unemployment and providing work possibility for the unemployed (by doing this decreasing poverty). It may also be understood as participated in governmental financed construction programmes and NREG is one such programme which helps to generate employment for the poor people in India. In this paper various aspects about public works in India are discussed.
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Corporate Social Responsibility Scenario in Jordan: Transformation Context
1-10Views:451Corporate social responsibility (CSR) is not an alien concept in Jordan; although it has been seen so far as a philanthropic activity in keeping with Jordanian traditions. Jordan is an old state, politically stable and it is now in transformation from the point of CSR view, since more and more Jordanian stakeholders are becoming aware of the CSR concept and some firms in Jordan are working their way towards strategizing CR efforts. However, business still not fully grasps CSR practices and still considers CSR as part of philanthropy framework rather than lifting it to an upper level and taking it as a strategic approach to sustainability. Unfortunately, CSR in Jordan faces impeding obstacles: economic challenges, lack of government’s incentives, skill-set, weak transparency and disclosure, and finally management and governance. This study attempts to present the picture of the transformation of CSR in Jordan and discuss its main steps of evolution, moreover, it aims to analyze the challenges and future prospects of CSR on a national level. Regarding the applied research method, the paper’s data sources are of secondary research and I have used desk research to illustrate most important points and findings on the topic.
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Comparison of the information content of the notes on the accounts between information technology services and sports activities
689-700Views:320Annual accounting statements are an important source of information within business relations amongst companies. However, it should be noted that due to their aggregate nature, the necessary information and through that the necessary knowledge can only be obtained from the two fundamental parts of the annual statements (balance sheet and profit and loss account) if the notes on the account contains the information that contributes to the more comprehensive interpretation of the other part of the annual statement. Beyond that, the notes to the financial statement have to help the presentation of a reliable and realistic overall image. In the notes to the financial statement, depth and detail of the disclosed information are not specifically stated, therefore their professional evaluation is left to the given enterprise. My basic purpose is to illustrate a comparison of the information content of the notes on the accounts between information technology services and sports activities. By means of text mining, we analyse the extent to which the notes on the accounts are in conformity with the Accounting Act.
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Sustainability Goals - Can we Reduce Malnutrition?
268-276Views:444Nowadays, some parts of the world hunger still exists. One of the milestones of the Millennium Development Goals (MDGs) is eradicating hunger. These goals include a road map for progress and documenting specific steps to combat hunger. Another type of hunger that has been very common in these days is hidden hunger. Eradicating extreme poverty and hunger is still an illusion. The number of people living in extreme poverty and malnutrition has fallen slightly in recent years. Measuring hunger is a very complex issue. The Global Hunger Index is a tool to comprehensively measure and monitor hunger at global, regional and national levels. Despite noticeable improvements, the question remains: will the world achieve its Sustainable Development Goals (SDGs), including the eradication of hunger, by 2030? Despite these efforts, even in economically developed countries, hunger or food insecurity still exist.
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Future Power Plant Portfolio Analysis from the Point of View of Minimum Cost and Emission Optimization
61-77Views:257The article examines the expected composition of the power plant portfolio in Hungary by 2030. The indicators considered are the life-cycle unit costs (LCOE) and the life-cycle specific carbon dioxide emissions (LCA(CO2)) of the power plant types. The minimum of these two indicators, as objective functions, is determined by a linear programming method for the power plant portfolio. The results show that the LCOE minimum for the power plant portfolios in 2030 is worse in absolute terms and better in specific terms than in 2021. In both absolute and specific terms, the LCA(CO2) minimum is more favourable in 2021. These results are met under the thirty and twenty-five percent electricity import scenarios. With twenty percent imports, the absolute values are worse and the specific values are better for both indicators. On the other hand, the results of the calculations for 2030 fall short of the 2030 Agenda of the Institute for a Green Transition. This is due to the delay in commissioning a new nuclear power plant and the transformation of industry with increasing electricity demand. For the portfolios under review, a minimum of thirty percent of domestic generation from renewable sources is met. This contributes significantly to the European Union's ambition for the sector to be net greenhouse gas-free by 2050.
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Transformation of the Decisional Leadership Role
26-40Views:394Leadership decision-making is important for the successful functioning of organizations, so it is necessary for leaders to understand the factors that impact their decisions. Decision-making is always the responsibility of the leader, but in a changing world, it becomes an even more crucial factor for success. Making good decisions requires time, experience, and thorough problem-solving skills. In my research, through the analysis of scholarly sources, I have identified several role factors that clearly influence the decision-making process and its implementation. Furthermore, I have developed a self-designed questionnaire to examine the decision-making role in modern organizations. I analyzed the data from 230 respondents using various statistical methods. Based on my findings, conflict management, risk-taking, and a thorough understanding of the problem strongly determine leadership decision-making processes. The ability of leaders to effectively manage conflicts significantly impacts their decisions. Risk-taking is also of key importance, as leaders need to recognize the risks associated with a given situation and make decisions accordingly.
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The Impact of Electrical Vehicles on Sustainability: Jordan as a Case Study
393-403Views:365The Global concern is moving toward making a revolution in favor of exploitation of renewable energy in order to improve environment conditions, limit emissions and minimizes consumption of non-renewable resources within the planet. In this context, it is necessary to focus on the transport sector as it contributes of at least 30% of the total primary energy consumption. Therefore, a set of rules must be developed to maintain economic, environmental and social sustainability to address the problems so as not to increase their severity and these cannot be done unless there are joint measures and regulations from governments, companies, manufacturers and users. Unfortunately, the Jordanian transport system mostly depend on the individual transport which supported by cars, and that because of the weak role played by the public transport sector, especially at the capital, Amman. Buying hybrid cars (internal combustion engine + electric motor) and Electrical Vehicles (EV), in the past few years in Jordan is increasing, which is compatible with the global trend to use Electrical Vehicles (EV) instead of Internal Combustion Engine vehicles (ICE) powered by fossil fuels, this issue will have a direct and indirect impact on gas stations companies, also it will have direct impact on labor sector and the current car industry since electric charging stations as well as EV manufacturing is not labor intensive. The main purpose of the study is to show how much it is necessary now to start theoretical assumptions through studying the expected annual increase in passenger cars and its impact on sustainability and predicting the future fuel consumption and emissions and compare them with the base situation.
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Link between Corporate Philanthropy and Corporate Financial Performance: Evidence from Pakistani Textile Sector
1-12Views:234Literature highlights the immense potential of Corporate Philanthropy (CP) for generating social and economic benefits. The debate on economic benefits align corporate philanthropy with the business bottom line arguing that it can be a significant determinant of corporate financial performance. This research is intended to extent this debate by providing sector specific perspective through analyzing the sample of Pakistani public listed textile companies. Results of the study show that corporate philanthropy has a significantly positive relationship with Return on Assets (ROA) but with Return on Equity (ROE) the relationship is found to be insignificant. The previous year’s financial performance moderates the relationship between CP and ROA but the interaction effect for ROE is insignificant.
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Relationship between Population Growth and Urbanization
527-541Views:724The main purpose of this article is to examine how to respond to and change the field of urbanization. Creating dwindling new opportunities and challenges for globalization, new sector introductions and agricultural dominance. In relation to changing trends in urban and rural environments, people's preferences are very diverse and their lives are changing. The difference between a big city and a small city can test different lifestyles. It is a fundamentally important infrastructure personality insurance system (both cities), important from the point of view of larger cities and very different from small towns in terms of quality. The benefits of small towns can be a unique lifestyle and a healthy lifestyle, which can certainly be felt. Among the different characteristics of urbanization in developing and developed countries, we can mention the different time course and magnitude [1]. Namely, in developed countries the urban explosion has taken place for a long time and with fewer people than in developing countries [2]. The rate of urban population growth in the latter group will be 4.04% between 1950 and 1975, 3.6% between 1975 and 2000, and 2.4% between 2000 and 2030. The Earth and all of humanity are facing many challenges these days, and this trend will continue in the future. The planet's overpopulation and changing eating habits put great pressure on agriculture and the countryside. Research focused on the countryside focuses on analyzing the various functions of rural areas.
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Teaching the Analysis of Newton’s Cooling Model to Engineering Students
63-68Views:300To apply mathematical methods to physical or other real life problem, we have to formulate the problem in mathematical terms. It means that, we have to construct the mathematical model for the problem. Many physical problems shows the relationships between changing quantities. The rates of change are represented mathematically by derivatives. In this case the mathematical models involve equations relating an unknown function and one or more of its derivatives. These equations are the differential equations. In this article, teaching the analysis of Newton's cooling model to engineering students is presented as one of the applications of separable differential equations.
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Examining the employees and sectors of the economy according to the digital competence in the EU memeber states
344-357Views:415In this study, the challenges of digital development and its sectoral effects were examined between 2015 and 2017 in the EU Member States, based on data of OECD, Eurostat, and the World Bank. The connection between the countries' digital development and sector dominance was analyzed. I found - in line with international research - that in countries that belong to the developed group, the high value-added service sector is dominant. The statistics of developing countries’ supported the assumption, that industry is the engine of the economy. The analysis of the underdeveloped countries revealed that agriculture and industry are the most important sectors compared to other countries. Measuring the demand of developed countries for ICT professionals, I examined the relationship of individuals with different digital competencies to one kind of self-education. In line with international research, my database showed that digitally unskilled people are the least likely to take advantage of online courses. As a continuation of the research, it would be worthwhile to carry out this study in other economic areas as well. Especially in areas where salaries for high-digital occupations do not differ significantly between countries in the region.
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Trends and Challenges of Databases
71-75Views:235The database management, using relational databases, is part of curriculum in the Hungarian high schools. The aim of this paper is to present how we can show for students the challenges facing data processing, data retrieval, beyond the relational database management taught in high school.
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Ethical Leadership, at the Beginning of a Research
188-195Views:536In this study I deal with the ethical leadership. I give an insight into the approaches of ethical leadership, give a literature review on the concept of ethical leadership, and introduce the measurement methods used in the most important empirical researches related to this topic. I also try to report on the first results of my research (I plan to describe features of Hungarian leaders based on a smaller sample). How does this relate to the challenges of Industry 4.0? I give the answer from the fact that, with the advent of these new technologies (which in themselves have ethical questions), among these new challenges, the focus of the manager's attention will continue to be partly on their employees. If they set an ethical example for their subordinates, they encourage their employees to act ethically, which gives the company a competitive edge in many ways, both in the product/service market and in the labor market too. So, with my study, I would like to draw the attention of executives and managers to the fact that new technologies and the human factor together bring new successes, and that one possible way of doing this is by consciously managing their company ethically and developing an ethical organizational culture.
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Price Analysis Practices in the Pig Sector
1-12Views:312The analysis of sales prices has become a particularly important topic in pig production research, including statistical analysis. With globalisation, we can say that today we are talking about a sector constantly exposed to the effects of the world market. It is also worth pointing out that, compared with other sectors, the impact of external regulation and influence is less pronounced. Thus, the aim of the present research was to identify the journal articles published on the subject of price analysis and, on the basis of these, to establish the correlation with the methodologies often used. It examines the spatial location of price analysis. The results obtained show that the practice of price analysis is mainly carried out in the context of market leading countries, usually on the basis of a cross product chain issue. The research shows the emergence in recent years of increasingly sophisticated methodologies that allow more accurate conclusions to be drawn, while also facilitating planning from a practical point of view.
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Linear elastic finite element investigation of titanium specimen produced by Additive Manufacturing
85-91Views:237Nowadays 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.
