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Accuracy Analysis of Two Parallel Manipulators
38-45Views:95The 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
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Generational Transfer Among Family Businesses on the Fields of Reputation and Organizational Culture – Research Plan
102-108Views:127Aim: 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.
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Comparing higher education preferences with labour market needs
382-392Views:390Hungarian 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.
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Analysis of Henbuk Startup Value Using a Scorecard Assessment Method
1-12Views:209This study aims to determine the valuation value of Henbuk's startup by conducting qualitative and quantitative analyses. Henbuk is a startup engaged in e-commerce. The Henbuk startup is currently in the initial funding stage, and the founders are opening opportunities for investors, which can later support operational and development activities. In obtaining funding from investors, the Henbuk startup requires an initial assessment of the company's value. The score assessment consists of several indicators, e.g., quality of the founder and team, opportunity size, product and technology, competition, marketing, sales and partnerships, and the need for additional investment. The results of the value assessment are obtained by using the Scorecard Assessment Method. The results of this study may help to determine the real value of other start-ups for the investors in the future.
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Reduction of Energy Use for Heating in Detached Houses using Passive Technics
64-76Views:146Reduction of energy use in buildings continue to be one of the most important goals in this sector. The aim of our research was to analyse the effects on the heating energy demand of passive technics. In the case of a detached house the energy savings using mass wall, Trombe-Michel wall and sunspace was determined. The calculations have been performed in the case of a building with average thermophysical characteristics and in the case of a building having similar geometry but its external building elements fulfilling the requirements of nearly zero energy buildings. It was proven, that some of the mentioned technics may lead to higher energy demand for heating, so a complex energy analysis has to be carried out before implementing them.
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The Impact of Optical Character Recognition Artificial Intelligence on the Labour Market
9-16Views:373Because of present day information technology, there is neither need to plant complicated computers for more millions price if we would like to process and store big amounts of data, nor modelling them. The microprocessors and CPUs produced nowadays by that kind of technology and calculating capacity could not have been imagined 10 years before. We can store, process and display more and more data. In addition to this level of data processing capacity, programs and applications using machine learning are also gaining ground. During machine learning, biologically inspired simulations are performed by using artificial neural networks to able to solve any kind of problems that can be solved by computers. The development of information technology is causing rapid and radical changes in technology, which require not only the digital adaptation of users, but also the adaptation of certain employment policy and labour market solutions. Artificial intelligence can fundamentally question individual labour law relations: in addition to reducing the living workforce, it forces new employee competencies. This is also indicated by the Supiot report published in 1998, the basic assumption of which was that the social and economic regulatory model on which labour law is based is in crisis.
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The Impact of a Coronavirus Epidemic on China’s Public Debt Ratio Growth
151-159Views:272Public opinion in the economic profession is strongly preoccupied with the expected negative economic effects of the coronavirus epidemic. Among the consequences, special attention is paid to the increase in the gross debt of the states. Indeed, based on conventional economic knowledge, it is clear to everyone that the economic downturn and the increase in government sector expenditure will directly lead to a sharp rise in government debt. The study aims to predict an increase in China’s government debt ratio using a macroeconomic model. The study will quantify the rate of increase in China’s public debt based on four theoretically possible scenarios for the course of the coronavirus epidemic. I am aware that it is difficult to apply conventional economic knowledge to China’s state-capitalist system. This is explained by the fact that the theories of the socialist economic model do not apply to China either. At the same time, the functioning of China's economy is closer to that of market-based economies, but the country's structure as a whole cannot be integrated into this framework either. But models describing the economic development of developing national economies cannot be applied to the country either. Nonetheless, I attempt to use conventional economic economics to attempt to quantify the impact of the coronavirus epidemic on China’s sovereign debt ratio. China’s public debt growth rates calculated under different outbreak scenarios are different, but none show an increase that would call into question the financing of China’s public debt.
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Effect of the Changes in Bulk Density and Granulometric Properties on the Strength Properties of the Moulding Sand Mixtures
116-122Views:189Foundry technology uses a lot of several natural materials. Sands use for preparing mixtures whereby making moulds or cores. Sand is defined as a granular, refractory major portion of mixture (90 – 98% in dependence on used binder). Sand properties depend on it has chemical and mineralogical composition; mainly particle size distribution and shape of grains and its size and sand surface texture. A comparative measurement of two quartz sand with different surface quality was carried out. Greensand mixtures were prepared to measure their permeability, compressive strength and wet tensile strength. The strength of sand mixtures has two main components. One of them is the cohesion of the binder; the other one is the adhesion between the binder and the foundry sand. The aim of this research is to determine the ratio of cohesion and adhesion within the strength values.
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Development of a Small-Scale Plastic Recycling Technology and a Special Filament Product for 3D Printing
365-371Views:410In our days, the fight against pollution has become a real challenge for the state. recycling is one of the solutions that is adopted in several nations to reduce the rate of plastic discarded in nature. The amount of plastic waste has been increasing for decades contributing to the environmental pollution that is one of the most serious problem of the mankind. according to the statistics not only the household plastic waste, but the industry discharge is increasing because the utilization of plastic as a raw material is more and more extending. plastic can be found in a lot of products, huge number of bottles, plastic bags, computers, auto parts are sold every day. The current applications for using recycled plastics in fabrication and design are fairly limited, on a small scale, plastics (such as abs, HDPe1, or Pe2t) are shredded and formed into pellets, and then either extruded into lament to be used in existing 3d printers, or injection molded into small parts and pieces of larger components. at a large scale, recycled HDpE is melted into sheets and either used directly as sheets in construction, or then heat formed from a sheet into components for construction. these methods of fabrication using recycled plastics are the norm because of their straightforward processes. nevertheless, each method leaves some complexity to be desired. This paper we study the types of plastics and diagnose the pollution caused by the latter. this allowed us to design and size a recycling station of plastic into filaments for three-dimensional printers. this station which will contribute to the fight against pollution. the station consists of two machines for grinding of the plastic and the other for the extrusion of the desired filaments. we were able to make a theoretical academic study on both machines and also we designed with solidworks 2015. The theoretical study is spread of the mechanical calculations necessary to the design and validation of the structure using the tools. as the prospect of this project, we want to complete the achievement of this station while completing the crusher and extruder mechanically. then switch to electric and electronic parts (introduction of engines, sensors and wiring...). In the case of waste plastics that are recyclable and reusable. the most widely used are polyethylene terephthalate (pet, used for synthetic fibers and water bottles), and second high-density polyethylene (hdpe, used for jugs, bottle caps, water pipes).
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Kinematics and Control of a Planar Cable Robot
88-95Views:137This paper deals with the kinematics and control of a planar cable robot [1], which is driven by four DC motors with gear. Cable robots are frequently used e.g., for the motion of cameras in sport halls and stadiums and also in high storage logistical systems [2]. Main goal of this research work is to design and build a test bench with low budget, which can model the motion of real life cable robots.
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Egy világméretű sportesemény, a 2017 Vizes Világbajnokság néhány társadalmi aspektusa a jövő managereinek szemszögéből a felkészülési időszakban
40-59Views:760Hungary hosts the 2017 FINA World Championships and Master’s Championships, one of the world’s largest sport event. Besides exploring the influential factors behind the potential effectivity, this study aims to identify social effects related to the event. Students in higher education today are the next generation of managers and company owners, therefore their attitudes and opinions will be determinative in terms of the decision-making. The empirical research took place in the University of Debrecen, the most populouses University of Hungary, 6 month before the official opening ceremony of the Championships.
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Selection of Possible Installation Sites for Sour Cherry Refrigerated Containers and Estimation of Container Volumes to be Installed Using GIS Tools
108-115Views:75The 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.
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A Wounded Soldier Fighting on two Fronts: Civil Society Organizations Initiatives Struggling to Overcome the Pandemic Crisis by Practical Protective Means, Volunteerism, Reporting and Awareness Campaign Discourse
136-151Views:180Given the fact that the covid-19 pandemic virus has had a pervasive impact on almost every sphere of life globally, it is noteworthy to highlight the role and position of the civil society sector, and this paper intends to do so by striking at two matters. Initially, outlining the impact on the functioning and activities of Civil Society Organizations (CSOs), to then proceed with their response to the crisis, through new multifarious initiatives/activities. The analysis was developed by using, essentially, unobtrusive data and direct non-participatory observations of Non-Governmental Organizations (NGOs) in Kosovo that have had initiatives against covid-19. Although CSOs were badly affected by the pandemic as such, and the consequences it brought, whether, through measures and/or neglect from the central level, they still found the resources and willingness to launch initiatives to combat the pandemic in the form or different. All over the country, appeared organizations which among their activities found a place for awareness campaigns, material and financial assistance to citizens in need, production of masks, face shields, and other protective equipment for citizens or health institutions, and providing voluntary assistance as health staff. To link practice with theory, there are presented cases of NGOs that well reflect scholarship ideas such as the need to have a classification of CSOs based on activities, the importance of their IT repertoires, coproduction, and especially the response to the crisis. The importance of this study grounds on the benefit it brings to understanding the role and contribution of CSOs in exceptional times of crisis, especially for a society that underestimates and neglects this sector.
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Simulation Aspects of the High Pressure Die Casting Process
521-529Views:100High pressure die casting (HPDC) is a manufacturing process for producing accurately dimensioned, sharply defined, smooth or textured surface metal parts. It is accomplished by injecting liquid metal at fast velocity and under high pressure into reusable steel dies. Compared to other casting processes, die casting is at the top end of both velocity and pressure. The high velocity translates into a very turbulent flow condition. The process is often described as the shortest distance between raw material and the finished product.
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The Possibilities of Additive Manufacturing in Medical Use
246-253Views:118Additive Manufacturing has been invented in 1981 at the University of Texas, and to this day it has grown to be the most versatile and promising manufacturing technology in the market, both the industry and health care system has noticed this. Additive Bio-Manufacturing (ABM) techniques, which can be used in health care, are highly in demand, and researches have been going on to make these technologies safer and even more versatile. For more utilization and versatility, special attention is required to develop new materials which can help in increasing the service life, bioactivity, cell growth along with the desired mechanical properties, and to find the right manufacturing parameters for creating optimal products. The aim of this review is to present the available main Additive Manufacturing technologies, and particularly the biomedical usability of Additive Manufacturing.
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Material Stock and Flow Analysis within the Agricultural Building Sector Based on Local Database
297-320Views:141The purpose of the paper is to analyze on micro level the stream of building materials needed for raising cattle. The scope of the produced material flow chart will cover the inflow and storage of the materials. The overall objective of material flow analysis is to contribute to the data inventory development process which is needed to use these construction materials as secondary raw materials in the future. The assessment is based on a concrete new development in a Hungarian region being carried out nowadays as a development and modernization of an existing cattle raising farm. Driven by the concern of resource depletion, further research on higher level, based on larger database will be needed to verify the estimated national level results for the magnitude of growth of anthropogenic stocks.
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Investigating the Effects of Active Cooling in 3D Printing
39-47Views:1423D printing is an increasingly widespread manufacturing process. With the development of machines and materials, the technology is becoming more accessible and easier to use. However, the technology's specificities mean that it requires knowledge of manufacturing technology. In some cases, it is necessary to solidify the freshly deposited layers as soon as possible in the event of large overhangs. This can be achieved by active cooling, which in turn can affect the material properties of the part. This research investigates the effects of active cooling during production.
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Urban Transportation Problems and Issues in Homs-Syria: Analytical Study of the Current Condition and Proposing Future Solutions
30-42Views:339Cities in the north middle east are known for their past and old valuable heritage, with a complex master plan of each one. Homs city is Syria is one of them, it has a history dates back to 2000B.C. with a unique formation of the city. However, the urban area of Homs has a very distinctive characteristics, but unfortunately it suffers from the transportation system operated. The congested and unorganized planning process have led the city to a complete mess and disorders, for all categories of its inhabitants. This study analysis the components of the transportation system, and identifies the greatest issues and problems the inhabitants suffer from, by locating the driving forces and the causes of these issues, and generally asses the quality of the system itself. Therefore, a holistic approach is proposed to improve the transportation system, and suggests some key plans to shift the city to a higher level of development. By locating the strength points, and detect the benefits of these strength points and exploit them. By evaluating the road network and create a new system that mitigates the negative environmental impacts (emissions, noise…) and reduce the crowded gathering of inhabitants, which caused a severe stress in their daily life. Overall, an attempt of implementing a new transportation system to contribute in the development process, and opens the possibility to develop other systems of the city in a sustainable framework.
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Development of Efficient Drive Based on Self-help
147-151Views:96The efficiency and the life rating are essential characteristics of mechanical drives. The traction drives with proper geometry can avoid the geometrical slip and their efficiency can exceed that of the gear drives. The elements has hardened steel surfaces, the lubricant is rheopectic. There is no danger for thinning the oil film and consequently for connecting the asperities. The traction drives are relatively noiseless, they are applicable for increasing speed in particular. There are some problems to be solved in friction drive. This is the necessity of clamping force. A simple machine element usually make a constant clamping force, a tensioning mechanism can be too complicated. The ideal solution is a simple design which assure a clamping force that is proportional to the instantaneous external load requirements. The authors suggest a modified machine element – a helical torsion spring, an elastic one, instead of the original, rigid annular wheel – that comprises both the driving and clamping functions, and the latter one is proportional to the external load, so that the principle of self-help operates.
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The Appearance of Dark Triad Among University Students
579-588Views:296In recent decades, the examination of the so called “Dark Triad” – narcissism Machiavellianism and psychopathy – occupies a prominent place in personality research. These socially undesirable characteristics, which, to some extent are present in everybody, can play an important role in the workplace. Dark Triad members are those, according to the literature who are strong in all three features. In my paper I will present the results of a study I conducted among the students of University of Debrecen Faculty of Economics and Business. I analyse the Dark Triad characteristics of students with the help of a validated measure the Dirty Dozen. In my research I try to find answer to what extent these personality traits appear in the examined sample? Is there any difference depending on the background variables (age, sex, educational programme ...)? Are my results consistent with those described in international research?
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Six Sigma in preconstruction: case study on improving of reinforcement steel processing
49-60Views:129Lean process improvements are crucial for enhancing production efficiency. In my research, I examine the application of the DMAIC methodology to develop the MEP facility within the framework of lean Six Sigma. Highlighting the challenges of precast concrete production, my study details how lean management aids in efficient process design and measurement. Introducing lean Six Sigma methodology involves standardizing processes and ensuring their effective development, contributing to the facility's efficiency
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Cultural diversity, Intercultural Competence, Tolerance and the Economy: a Review
98-109Views:203Cultural diversity is generally a controversial topic in the literature. Whereas some studies proved that it has economic benefits, others denied that. However, it is possible to avoid the costs related to that through enhancing each of intercultural competence, on the level of firms, and social tolerance, on the level of economies. To investigate that, the study used literature review analysis. Based on the literature, cultural diversity plays important role in enhancing innovation and entrepreneurship which are necessary for economic development. However, it may result in different challenges such as a lack of trust and conflict. Therefore, it could be feasible to manage and benefit from cultural diversity in the companies through cross-cultural training as well as cultural diversity management. On the other hand, economies can avoid cultural diversity's costs by adopting the policies and institutions which are necessary for enhancing the level of social tolerance among people.
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Some Sources of Misunderstandings in Intercultural Business Communication
91-101Views:1291It is always a big challenge for all types of companies anywhere in the world to survive in the globalised and accelerated world. Their primary objective is to stay competitive, keep or even enlarge their market share while keeping their costs at a minimum level. These corporations often cross borders and operate on a multinational level. In order to do that successfully they need flexible workforce: people who have a high level of intercultural competencies and can help their corporations to achieve their aim of profit maximising. It is widely accepted that culture and languages are among the most significant impacts on intercultural communication. In this paper first I am going to interpret intercultural communication and the role of culture and then look at different intercultural skills and the role of languages in intercultural communication. Some areas that might cause problems in intercultural business communication will also be described.
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Artificial Intelligence in Human Resources Information Systems: Investigating its Trust and Adoption Determinants
749-765Views:3616With 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.
