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The Relationship Between Renewable Energy Consumption, Net Energy Import, Greenhouse Gas Emission and Human Cap
58-71Views:271The measures to improve energy efficiency and increase of renewable energy production and consumption should be encouraged in the interest of sustainable development. Many factors can influence the use of renewable energy such as the level of economic development of an economy, nationals’ and the main economic actors’ environmental awareness, energy import dependency, ratio of the urban population, and government subsidization intensity among the others. The main purpose of this study is to examine the relationship between the share of renewable energy in the total energy consumption and net energy import as a percentage of energy use less production, greenhouse gas emission per capita and human capital using by OECD countries data from 1990 to 2014. The results indicate that there is a negative relationship between net energy import and renewable energy consumption, and also negative relationship can be shown between the amount of greenhouse gas emission per capita and renewable energy consumption. However, we identified a positive relationship between human capital and renewable energy consumption for energy importer countries above a certain level of human capital.
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The Role of Industry 4.0 and Digitalization in agriculture, Especially in Romanian Agriculture
Views:609The use of robotics, automation, big data, artificial intelligence are growing in the world and in the agricultural sector, which contribute to the development of a more efficient agricultural sector. In the agriculture sector for sustainable development it is necessary the use of opportunities and technologies provided by industry 4.0. For the agriculture sector digitalization means the future, because it helps increasing output meanwhile environmental pressure is remitting, and is not increasing. The aim of these paper is to present the concept of Industry 4.0 in agriculture and to analyse the romanian agricultural sector attitude and conditions towards digitalization.
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An Exploratory Study on the Level of Trust Among Hungarian Food Manufacturer Companies
277-288Views:347The intensification of globalized economic competition is playing an increasingly important role in the lives of companies to determine their true position among their competitors. Food companies are of paramount importance because of their role and weight in the national economy. In Hungary, the food industry plays an important social and economic role and is a world leader in terms of employment and value added. Currently, there are nearly 1100 active food companies in Hungary, so it is worth examining the peculiarities of the role of trust between companies.
There are often contradictory statements in the literature about the effects of Industry 4.0 technologies and the trust placed in IT tools. Therefore, it is a relevant research question to examine whether the characteristics of the role of trust - e.g. staff, suppliers, IT tools and technologies, etc. as confidence levels can have a direct positive impact on the efficiency, profits, liquidity, etc. of the companies in question. development.
During the research, I analyzed the level of trust between the food trading companies, in which I discuss the trust within the industry within the company. My aim is to further enrich my previous research knowledge in this field.
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Potentiodynamic Study of the Effects of Nickel on The Electrodeposition of Zinc from Chloride Media
15-24Views:245Abstract. The potentiodynamic experiments of the nickel effects on the zinc electrodeposition have been done to understand the impact of Ni impurities on the electrowinning of Zn from spent pickling liquor. The nickel chloride solutions of Ni concentrations 90 and 1 g/dm3 were used as the electrolytes. The latter was also mixed with 90 g/dm3 Zn in the experiments. All the runs were carried out at room temperature with 40 mV/s continuous polarization speed and with 1/s sampling rate. It was observed that nickel electrodeposition from chloride media containing 90 g/dm3 Ni started with the generation of hydrogen bubbles, entirely blocking the cathode surface. Only a slight current development was observed until the polarization potential ~ -0,8 V. The visual observation showed bubbles also formed at the anode, which may represent chlorine and/or oxygen evolution. While, in the electrodeposition of nickel with only 1 g/dm3 Ni concentration in the electrolyte, metal deposition was hardly observed, but visible hydrogen bubbles constantly blocked the cathode surface. A similar tendency was observed in the mixed-solution electrolysis cell; the initial tiny bubbles accumulated at the cathode surface more than in the pure Zn solution. The enhancement of H2 evolution indicates how nickel deposition may contribute to the loss of useful current in the process of Zn electrodeposition. The mass of nickel deposited from the mixed solutions significantly decreases as the Ni concentration decreases in the electrolyte, while the mass of deposited zinc is relatively constant. It means that the purity of the produced Zn is appreciably higher – with respect to Ni – if nickel is efficiently eliminated from the solution before electrowinning.
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Proposition of Enhancing the Significance of Green Infrastructure in the Smart City Concept
1-22Views:342The aim of the paper is -in accordance with the goals of the research team called „ Sustainable Integrated Settlement And Regional Planning” within the project EFOP-3.6.1-16 – to compile a comprehensive expert material on smart city. In accordance with my personal assignments within the teamwork, I studied first of all how sustainable urban water management issues are managed in the corresponding smart city documents, how the smart city concept which is evidently one possible way of sustainable urban development involves the strategy of sustainable stormwater management along with the elements of green infrastructure which are the inevitable segment thereof. The basis of the study were Hungarian official methodological guides and one university textbook published so far in the topic. Contrarily to the expected results the two notions of smart city and sustainable urban water management are not harmonized despite their common overall goals. Therefore I make a few suggestions in order to harmonize to some extent the criteria and indicators developed for the two notions - smart city and sustainable urban water management including green infrastructure - promoting sustainable cities. The overall goal is to ensure that green infrastructure is not neglected while smart cities are realized.
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Requirements for Multicultural Competencies Defined by a Focus Group
44-56Views:302Globalization, the spread of multinational companies and the enormous development of information technology can lead to a new trend in employers’ requirements. However, being employed by an international company is a real possibility for any employee in any part of the world. Even if they do not have to work abroad, employees may have to function in a multinational environment in their home countries. A favourable combination of intercultural competencies is a key factor in the selection and development of employees. A possible way of measuring these competencies can be the Multicultural Personality Questionnaire (MPQ). First of all,on the employers’ part, it is important to clarify the exact requirements and competencies (dimensions) to be able to draw up an ‘ideal profile’. We prepared two versions of the MPQ (91-item; 5-dimensional) and used them to test employers’ requirements in the selection process regarding the dimensions of cultural empathy, open-mindedness, social initiative, emotional stability and flexibility. This study describes the results of a focus group interview, which took place in 2017, revealing the importance of multicultural competencies from the employers’ point of view and examining the conditions of the adaptability of the two questionnaires. We used the focus group method to find out in what conditions the questionnaires canbe used in a selection process. What possibilities and limits are therefor using the direct five-dimensional questionnaire? What aspects do we need to take into consideration in expressing and interpreting the requirements in the results of the test?
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How Should We Develop the Careers of Our Employees? Organizational Career Management Tools in Focus
1-13Views:600We can observe more and more often that people change their jobs frequently. They work for more employers during their life. The question may arise that organizations should care about the career management of their workers? Certain surveys which investigate the reasons of job changes can disprove it. One of the most common causes is that employees cannot see their career opportunities at the company. The organizations should not necessarily use complex career development systems it may also be appropriate, if they use only some techniques consciously. The study shows the career management tools used by the organizations examined in the survey. The authors demonstrate that there is a provable relation between organizational performance and career development methods. Furthermore they describethe techniques applied by the successful organizations.
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Measuring and Developing Color Aptitude of Students at High Schools
58-70Views:191The 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.
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Statistical Evaluation of University Student’s Motivation and Personal Competency with Principal Component and Cluster Analysis
365-374Views:290The 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.
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Decision Support for Difficulties in a Furniture Manufacturing Company
405-418Views:227In “Decision support for difficulties in a furniture manufacturing company” titled work we are presenting in detail the operation of a particular furniture company and the difficulties encountered during its operation, which they try to overcome in some way so that they do not hinder the operation of the company. After that, we will show how we wanted to achieve the production support system. In different versions, we detail what we actually wanted to accomplish while showing results that illustrate the evolution of the system. We also present the difficulties of the development, which is made in Java. We also present the latest version of the system and its results. After processing the input parameters, the system is able to produce results using scheduling algorithms that can help in making important decisions during production planning.
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The Importance of Continuous Organizational Project Risk Management and the Value of Project Management Certificates in the Customers’ Eyes
51-68Views:722In an increasingly complex and volatile business environment, organizational project risk management plays a critical role in determining the chances of project success. Project management has become a common tool in the hands of large organizations for executing development and improving their production cycles in a more carefully planned way. However, the future is often hard to predict, and unexpected events may occur which could have been avoided with the use of the right tools and mindset. This comprehensive research study aims to showcase the importance of continuous risk management in organizations and highlight how risk management contributes to successful project outcomes. By synthesizing information from 59 high-quality publications from Scopus and Web of Science, the research describes various risk mitigation methodologies used across diverse fields, and explores potential obstacles faced by project managers when executing risk management strategies. The primary research of the study builds upon a survey conducted with 181 experienced project managers across various industries to gain deeper insights into their risk management approaches and the constraints they may encounter. Additionally, the study seeks to analyse the value of obtaining project management certificates in relationship with led projects’ length and budget. Employing SPSS, the research presents descriptive statistics, regression, and correlation calculations to further analyse the data gathered. The aim of the research is to draw attention to the significance of continuous risk management, propose effective methodologies, identify and mitigate potential challenges, and shed light on the potential benefits of having certifications in the field of project management. This study aims to present valuable knowledge for both researchers and organizations striving to better understand the field of project risk management strategies through the systematic literature review and quantitative research results presented.
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Survey of the Service Offer of Fitness Clubs for Group Classes in Debrecen
35-48Views:415The economic and social importance of the fitness sector is steadily increasing. The range of services provided by fitness centers is expanding and the popularity of fitness clubs is constantly growing. Fitness workouts are easily accessible for everyone, and there are numerous types of fitness centers which can play an important role in everyday physical activity. There are many factors that can influence the choice of fitness consumers for the gym, also fitness professionals play a key role in this regard. It is essential for fitness clubs in order to remain competitive on the market, to employ fitness instructors with the optimal personality and expertise, but in many cases, there is a lack of verification of qualifications. In our study, we conducted interviews with 20 fitness instructors who work in a fitness center that offers group lessons to consumers. The questionnaire included questions about consumer preferences, fitness facilities, trainers qualifications, and activities. Our study was made among eleven fitness clubs in Debrecen. The number of fitness clubs is constantly changing, with each year closing, opening or rebuilding fitness centers, which vary widely in size and number of services offered. The majority of respondent trainers are women as are the participants women in group lessons. Most of the interviewed trainers have OKJ qualifications, but the results reflect that fitness providers have not checked their qualifications at all before applying them. Fitness professionals play an extremely important role in leisure sports, contributing in maintainance and development of the fitness consumers’s health. Their work has a particular responsibility, as they can influence the physical and mental health of others in both positive and negative ways. Not only to avoid the risk of injuries, but also to prevent long-term health damage, fitness professionals play an important role. Controlling the qualifications also be in the interest of fitness clubs, not only avoiding accidents, but also increasing attendance at group classes by employing reliable, excellent personal trainers.
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Changeable requirements & Answers With a dynamic system in order to continual improvement of the environmental performance of a rubber industrial big company
81-90Views:230The topic of this article is the analysis of the changeable environmental requirements for the Environmental Management Systems (EMS) of the companies. The strengthened environmental criteria of the 21st century creates new challenges for the participants of the business sphere. In order to satisfy the criteria of the stakeholders, it is necessary to build out a - by the top management - preferred and proactive EMS that can contain also a life cycle thinking method. This logic is supported by the new ISO14001:2015 standard, too. In the first part of the article the stakeholder conception and the new standard model is presented based on literature analysis. The second part of the article presents an environmental management tool developed by a multinational, tyre company. The model combines the stakeholder conception, the requirements and the life cycle assessment (LCA) in order to respond to the new environmental management challenges. The last part of the article closes with the new development possibilities of the presented environmental management tool worked out by the author.
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Operation of the Mediacentrum Debrecen
77-91Views:248The media market has been significantly rearranged over the last two decades. The local media of bigger cities worked for a long time in the background of local television. In addition to county print newspapers, television was the main source of information. Changes in media consumption habits, technical development have brought new market demands and new forms of appearance. Most of the local televisions, such as the Debrecen Television, were forced into operational and organizational change. With the expansion of the media portfolio, it has reached the dominant media of the region, covering the entire market segment, where content creation and providing the background of content delivery are at the highest level.
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Wind Tunnel Making in Practise
19-24Views:175In this paper, we examined the low speed wind-tunnels. Our goal is to construct an open flow system windtunnel that can be utilized in our measurements. To make such a wind-tunnel we needed to build a prototype and calibrated with the help of measurements. Than we determined the flow at the area of measurement. Finally results of the measurements satisfied our expectations. Although there is still much more in development that we would like to do based on the newly gained experience.
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Pin on Disc Tests of Closed Cell Aluminium Foams
353-357Views:326Metal foams have a lightweight cellular structure with excellent mechanical and physical properties and are at the forefront of materials development for the automotive and other industries. Although metal foams are popular, they are still not sufficiently characterized thanks to their extremely complex structure. The aim of the research is the tribological investigation of closed cell metal foams with different production technologies and different cell sizes. The paper introduces the closed cell aluminium foams produced by direct foaming and gas injection and those raw materials. The Pin on Disc instrument and the most important parameters of the experiments are also presented.
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Learning Curve Based Sigma Level Determination in Interrupted Non-Production Processes
260-270Views:202The philosophy and methods of six sigma process development have been applied successfully since mid1980s, and the application of the six sigma concept in non-production processes has increased significantly in the last decade. In this paper processes that can be characterized by learning curves are modeled. The quality of such processes can be analyzed on the basis of the six sigma concept. In this paper two back office processes are analyzed. The processes are built up of simple repeated steps and incorporate some interruptions. The application of the model allows the calculation of the maximally permitted number of interruptions in the process if the preliminary determined norm is to be kept.
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R&D infield of “Waste-to-Energy”in Institute of Raw Materials Preparation and Environmental Processing, University of Miskolc
49-57Views:193The importance of research and development in the field of „Waste-to-Energy” is vital in our modern society trying to establish the circular economy. Such R&D activity has been carrying out at Institute of Raw Materials Preparation and Environmental Processing for decades in several directions. This paper deals with the main results of research on refuse derived fuel from MSW, biogas production, briquetting of biomass, as well as production of fluid fuels.
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Potential Impact of Innovation on the Competitiveness of Sports
666-677Views:361Innovation and development activities related to sports and the tools created during the processes facilitate performance sports players (athlete, coach, sports manager) to achieve outstanding results in their field.
The success of sport can have a major impact on the social image of sport and its economic potential, and thus on the future of the sport. In my paper, I undertake to introduce the innovation processes associated with competitive sport and the products that result from these innovative activities, and then examine how and to what extent these supplies influence the economic and professional performance of the sports under investigation.
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The Middle East perspective of Corporate Social Responsibility
282-291Views:366Corporate social responsibility (CSR) in the Middle East is gaining more importance than in the past. Although it still remains more about philanthropy and charity, it moves towards a more strategic approach which includes formalizing ways of giving, as a set of non-random actions, and focuses more on addressing social ills and environment, economic challenges, that are hindering development. However, the business in the region has not yet taken the step to fully integrate the CSR into their core business operations. The most common challenges that facing the CSR implementation are the lack of government requirements and incentives, spreading awareness, building CSR partnership model, going beyond the marketing and PR campaigns, and full integration of CSR into the business strategy. In this paper, we aim to introduce the current state of the CSR in the Middle East and its perspectives, besides reviewing its evaluation stages, motivations, and current challenges. Moreover, we aim to examine CSR common practices through examples from the financial sector. The research method applied in this research is based on secondary data sources and we have used desk research to illustrate most important points and findings on the topic.
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Designing Aspects and Classification of Bearing Industry Box Handling Apparatus
325-334Views:198It 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.
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Organizational Applications of Coaching Approach at Strategic Level
1-13Views:551Main topic of this paper is business coaching which is an individualized leadership development tool working with actual challanges of leaders through developing and transforming from good to great. By using coaching in organizational level traditional and innovative organizational cultures can be radically changed. The change is possible because under the influence of coaching there are strong engagement in individual level. Coaching results growing creativity and efficiency in planning and implementation in organizational level, and behaviourial changes in individual level at the same time. It has positive effects on people’s motivation, because they have time and space for doing and living changes, it doesn’t need revolutionary changes from them. Aim of this paper to analyze and show application of coaching approach in organizational level through examples of companies.
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Investigating the Effects of Active Cooling in 3D Printing
39-47Views:2643D 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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Effect of nanomaterials on work safety
304-312Views:176Nowadays, due to their special properties, nanomaterials are gaining more and more interest and their industrial application is increasing. Their specific properties are mainly due to the fact that the main characteristics of nanomaterials are not always the same as the normal size range of the same material. While these materials fulfill an important new function in the industry, their interactions with the environment and biological organisms are becoming increasingly unpredictable, increasing uncertainty, for example, in their application to human safety. Due to the very rapid technological development, these substances have been used much earlier than the legal framework for their application could have developed, and therefore a binding regulation on the use of nanomaterials is currently not available. At this moment, the manufacturer of the nanomaterial is responsible for the safety of the products. Of course, owever, chemical safety legislation and standards provide an excellent basis for their management, but due to their specific properties, novelty and lack of knowledge of the mechanism of action, risk assessment can still be a challenge for the practitioner.
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Teaching Process Improvement Principles and Techniques – Development of Engineering Competences in Secondary Schools
45-57Views:191Students in Hungarian secondary schools generally have no realistic picture of what engineers do. In the framework of a project workshops are held in secondary schools to pass knowledge about the world of engineers through games, problem solving, and teamwork. Our aim is to give the students an idea of the broad range of engineering fields and activities. In this paper we briefly introduce the details of the programme and our experience in the application.
