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Agriculture and Seasonal Work - Features and Prospects
416-428Views:213In terms of employment specialities, certain sectors of agriculture may show quite a different picture. Especially the seasonal nature of employment, including day laborers and / daily work hireling nature deserves attention. In our country it has long tradition and can be directly linked to regional mobility and commuting trends since some people move near the western border to Austria for work. However, at the same time, near the eastern border, seasonal workers arrive from the East, which has an impact on the local labor markets, and for the lives of some settlements. In our study, we want to study and elaborate the specific details of these processes that connect the two countries and the issues of the advantages and disadvantages as well. In our paper we rely on literature data, private experiences, and the opinion of small scale farmers in Szabolcs-Szatmár-Bereg county, who have experience in employing laborers on a seasonal basis.
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Decision Support for Difficulties in a Furniture Manufacturing Company
405-418Views:123In “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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Food Industry 4.0 Readiness in Hungary
1-12Views:278In terms of production value, the food industry is the third-largest in Hungary, the first in Hungary in terms of the number of employees, and the first in Europe in the processing industry, as well as a significant user of resources. The research examined the state of art of digitalization readiness, focusing on I4.0 technologies, which supports the management to operate more efficiently the enterprise and to make better decisions. So the focus was on integrated enterprise information systems, management support systems, business intelligence systems, industry 4.0 technologies, and issues related to their application. The analysis based on an online questionnaire survey the request sent to 4.600 enterprises, the response rate was 5% which was representative of the branches of production, covered the Hungarian food and beverage manufacturing sectors in 2019. The companies were asked the most critical technologies in development, going towards Industry 4.0. The research tools were LimeSurvey, Mailing List Server, Excel, Power BI (Desktop, Publishing Server to distribute the results). The used analysing methods were making calculations, pivot tables, models, dasboards. We found that a significant portion of businesses, 78 %, use mobile devices in the manufacturing process. The three most relevant digital technologies are geolocating (GPS, GNSS), cloud computing, and sensor technology. The current level of digitalization and integration cannot be said to be high, but respondents are very optimistic about expectations. Improvements are expected in all areas in the next 2-3 years in terms of digitalisation and integration. Vertical integration involves, first and foremost, cooperation with partners in the supply chain. Horizontal integration means close, real-time connectivity and collaboration within the company. Unfortunately, between 6% and 15% of SMEs (approximately 9% on average) and large enterprises, 36% have a digital strategy. According to the survey, the sector needs significant improvement and creating a digitalization strategy.
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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:48The 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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Investigation of Zeta Potential of Water Based Nanomagnetite-Bentonite Dispersions
54-66Views:131The stability of different type nanomaterials play an important role among recent scientific and industrial
challenges, including the examination of the effect of polymers, surfactants and their mixture on surface and electric surface properties and aggregation extent of dispersed particles, which are of utmost importance. Bentonite and its composite with different nanomaterials are frequently used for instance in environmental protection for wastewater treatment, since due to their great specific surface area they have excellent sorption properties. There are several publications in the literature for the application of bentonite in drilling muds. By using them the fluid loss can be decreased during the drilling process, the filtration of the fluid can be increased, it also improves the rheological properties and the formation damage can also be mitigated. During research the investigation and the analysis of the zeta-potential of nanoparticles and their composites at different pH and salt content can be an interesting topic. During our experiments the electric surface properties of nanomagnetite synthetized in laboratory (NM), cation
exchanged bentonite from Mád (Be) and the composite particles of these particles were investigated. Hybrid particles of different compositions (9:1, 7:3, 1:1, 3:7, 1:9) were analyzed at different potassium chloride concentrations (0.1 – 0.0001 M). The surface adsorption on the surface, i.e. the change in the surface charge can be traced well by analyzing the obtained zeta-potential values. The behavior of such systems was observed in the full pH interval, thus, valuable data were obtained regarding the colloidal stability. As for the stability, different requirements may emerge in practice, there are application fields where the colloidally stable system is advantageous, on the other hand, in some cases, ceasing the stabile system is the goal. Our investigations are of high importance in terms of stability and its characterization. -
Quality Questions of Clinch Join
122-127Views:77This article deals with the quality of the clinch joints. Due to the volume of the production there is a need for the inspection of the joints and the monitoring of the joining process. Different producers give solutions for the inspection and monitoring and these solutions will be introduce through 1-1 example their importance.
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Examination of the Relationship between Renewable Energy and Economic Performance
234-243Views:194Many 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.
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Manufacturing Process Optimization and Tool Condition Monitoring in Mechanical Engineering
72-89Views:131The optimization of manufacturing and production processes with various computer software is essential these days. Solutions on the market allow us to optimize and improve our manufacturing and production processes; one of the most popular software is called Tecnomatrix, which is described in this paper. Tool condition monitoring is a vital part of the manufacturing process in the industry. It requires continuous measurement of the wear of the cutting tool edges to improve the surface quality of the work piece and maintain productivity. Multiple methods are available for the determination of the actual condition of the cutting tool. Vibration diagnostics and acoustic methods are included in this paper. These methods are simple, it requires only high sensitive sensors, microphones, and data acquisition unit to gather the vibration signal and make signal improvement. Extended Taylor equation is applied for tool edge wear ratio. Labview and Matlab software are applied for the measurement and the digital signal processing. Machine learning method with artificial neural network is for the detection and prediction of the edge wear to estimate the remaining useful lifetime (RUL) of the tool.
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Derivation of ZF6HP26 Speed Transmission
48-63Views:117Due to the increasing importance of automation, automatic transmissions have appeared. The different ratios of the transmission may be achieved by braking and coupling the corresponding elements of the planetary gear sets connected in series. The focus of the study is on the ZF6HP26 transmission. After disassembly and clarifying the teeth number of the gears, we derived the equations parametricly providing the ratios using the speed equations published in the literature. The ratio of each gear is calculated by substituting the particular teeth numbers into the derived equations.
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Examination of Innovative Wastewater Treatment Method for Chemical Treatment of Municipal Wastewater
136-144Views:352The VízTEC Ltd. and Debrecen Waterworks Co.’s management mutually expressed their intention, that to designate a period of research examining the Debrecen Waste Water Treatment Plant’s (WWTP) intensification. During this period, the newly developed product, VIRON Plus 40 coagulating agent will be tested provided by the VízTEC Ltd. The aim of using the VIRON Plus 40 coagulating agent is the examination of intensification opportunities of Debrecen WWTP. The functions of the new generation of coagulants go beyond inorganic phosphorus precipitation and are growing. A modern WWTP is not only clean the water but also produces energy and usable sludge product. The appropriate energy balance, cost efficiency and carbon dioxide emissions reduction get increasing emphasis in WWTP’ operations.
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Napenergia használata villamosáram termelésre egy családi házon vizsgálva
1-12Views:128In this paper we compare the naturalgas and solarenergy utilizatio nwith the help of SWOT analisys. Than we are presenting the solarpower utilization devices and system installation in economic point of view. And two payback calculation method is demonstrated on a family house.
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Do Talent Management Practices Affect Organizational Culture?
495-506Views:483The 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.
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Construction Solutions for Reducing the Effect of the Rear-end Collision
Views:144Analysing the accident statistics, we can detact that, the improvement of the transport safety is one of the most important engineering task. The number of the vehicles in the trasport gets significantly higher from year-to year, and the infrastructure of the cities frequently can not coordinate already it. Therefore the increasing of the vehicles’s number naturally involves the upgrowth of the accidents occasions too. The aim of the improvement of the vehicle-construction to reduce the personal injured and death resulted accidents number in contrast with the increasing traffic performance. This study analyses the construction options for reducing the effect of the rear-end collision whiches are concentrated for the passive vehicles and its passengers firtsly. Among the actual car manufacturers applied solutions, foward-looking possibilities and suggestions are described in this publication. The development can not be concentrated for only the safety improvement, the mass-optimalization must be completed simultenously. These apparent contrary requirements can be completed with application of new materials. Therefore the study addresses the more optimal utilization of the meatl foam in the vehicles crushbox. In addition, an optimized break-assist solution is described based on the Mercedes developed Pre Safe Plus® system to increas the abrorbtion of the impact energy.
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The Issue of Hidden Hunger
155-164Views:237Mankind faces major challenges in the area of food safety and food security. In addition to the growing population, urbanization, climate change, global environmental change and economic inequality, as well as instability, have a major impact on balanced food supply. According to the WHO (2018) study, not only the elimination of hunger is a problem, but also the increase of our well-being. While 0.8 billion people suffer from a lack of available food, 33% of the global population is overweight, 30% of them are obese. In a long term our growing well-being can also be a great problem. There are three types of dietary problems that coexist in parallel: the hunger and malnutrition, the microelement deficiency, and excessive nutrition and obesity. These three health problems represent a serious burden on public health, which has to be considered in the context of food security and food safety.
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The Role of Employee Participation and Resistance in the Success of Change Management
22-30Views:220Successful 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.
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„Forradalmi” változások a menedzsment területén
1-15Views:144Development of the Science and practical application of the results created big changes in the nontradicional areas too. The „Health industry” was developed. The results of the physics, chemistry, biology and mikroelektronics etc. helped to develop some new methods of diagnosis, operation etc. The „money industry” was developed too. Our opinion is, that the most important cause of the economic crisis is a non regulated well of the „money industry”. The „knowledge industry” was developed too. The „knowledge industry” contains all level of teaching and Research + Development + Innovation. Our analyze shows that the Innovation is the most important factor of the economic Development of Society. The new scientific results created big changes in area of the Management. The „Management Science” was developed as an independent area. Some management specialists developed some management methods (eg. Value Analysis, Risk Management, TRIZ, Lean methods etc.) for efficient allocation of sources.
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Modernisation of FESTO MPS Station with Implementation into Cyber-Physical Space
10-14Views:141In the course of our thesis we dealt with the implementation of a manufacturing cell. For this we used the FESTO MPS modules. The production cell is controlled by a PLC. We have not only implemented a unique layout and workflow), but also added new features to the system. This means using two control units, one of which is responsible for controlling the process, while the other is managing a web interface. On the web interface, you can see the warehouse containing the finished workpieces and order palettes assembled from different workpieces, or you can set the type and quantity of workpieces to be stored in the warehouse
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Project Risks and Risky Projects
164-189Views:311Projects are key drivers of organizational change, both their failure and success can have significant impact on the organizational performance. Risks may arise throughout the entire project life cycle. Managing these and initial project planning uncertainties is an important task of Project Management. The study describes the application of traditional project management tools and methods in risk analysis, -evaluation and -treatment based on modern project and risk management standards and recommendations. The authors also examine the link between classic project management objectives (project time - resources – scopes) and risk-based decision-making. The different scale and scope of projects call for different responses to the associated risks. The study highlights the possible role of the ISO 31000 risk management standard package in project risk management. The authors analyse the risk management of the different projects on the basis of processing relevant literature, including the relationship of the project stakeholders to the risks. R&D, agile projects and project portfolios have specific and complex risk exposures, but their project management can provide several „hidden” risk analysis and - treatment functions.
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Concept Images of Primary School Students and University Students About Function
114-122Views:294The concept of function is fundamental importance to the mathematics. Since the most mathematical concept is not acquired in one step [13], thus we have to take a long journey for developing of the function concept. One of the aim of this process to develop an effective concept image which have an important role in problem solution. The students decides on the basis of a concept image whether a given mathematical object is an example or nonexample of the concept. (Vinner & Dreyfus, 1989). In this paper we are looking for the answer of the following question: what are the concept image of the function concept formed of the students by the end of the primary school (8th grade) and the first year engineering university students?
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The Role of Information Security in the Business Processes
1-13Views:109Information security (namely, confidentiality, integrity, and availability of business-related data) is an issue which companies attach increasing importance nowadays. This is, however, not a self-centred goal to achieve, but an (additional) means businesses use to work towards security in their overall operations. In addition to briefly presenting two case studies on information security practices, this paper offers a survey of terms and management practices linked with process security. Business continuity planning and risk management techniques - as outlined here in connection with information protection controls - may cover all business processes at any company.
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International Coffee Trade Network Analysis
393-404Views:253Coffee is one of the most consumed beverages in the world. It is the second largest traded commodity after petroleum. It is crucial for the economy and politics of many developing countries, as its cultivation, processing, trade, transportation and distribution create jobs for millions of people. The analysis of network connections and structures became popular in the field of sociology, whereby the term Social Network Analysis (SNA) is derived. The method is well suited for the complex examination and modelling of composite social structures. The social network is defined as a finite set of social actors and the relationships between them. Modelling of complex networks now apply in countless locations, from social media through the pharmaceutical industry to economic and commercial processes. Our study examines changes in international coffee trade through a network analysis. Introducing the complex networks investigate by our, highlighting major changes in international coffee trade.
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Analysis of consumers’ eating attitudes having animal-origin diet
232-241Views:156The spread of civilization illnesses realized in the developed societies has also reached the less-developed ones as well. The reason behind this phenomenon is the non-proper food consumption among the first places. This study is dealing with the plant-based nutrition and its characteristics. The authors’ aim was to examine the consumers’ opinion on the plant-based diet.
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Conceptual Design of the Low-Cost Environmental Temperature Test Chamber System
81-94Views:92Unmanned robots being remotely controlled or autonomous are spread worldwide and used in different purposes. Inhabited robots are brought very close to users and accessibility to these tools is very high, moreover, at very low costs. Regardless to emphasize the increasing popularity of these robots. However, any robot system being electrically driven and controlled has bottleneck in the amount of the electrical energy stored aboard in the battery packs. In other words, due to limited amount of the electrical energy available special issues related to use energy best way with maximum effectiveness are needed and considered. Additionally, the battery management system is needed to control the processes of the discharge and the charge ensuring technical data and parameters set by the manufacturer. This paper addresses robot applications in regions out of the calculated when special environmental testing is needed to confirm battery pack technical data. Among those of the environmental tests required the temperature test is in the focus of attention. The main idea and purpose of this paper is to set up new concept of the low-cost environmental temperature test chamber, to define its technical parameters and other properties needed for its preliminary design and prototype manufacturing.
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Classification of Nanomaterial’s Risky Properties on the Aspect of Human Safety
34-45Views:168Due to their unique properties the application of nanomaterials continuously extends thus these appear for several industries. The industrial application of nanomaterials became significant during the last decades. As a result of the intensive development, our knowledge about the exact influence of nanomaterials for living bodies and human health is characterised by deficiency for both short and long time. Nanomaterials able to be entered to the living organism through several ways then invade to the circulatory system and the lymphatic system, reach the organs and can induce various kind of damages and serious diseases as a result of their different appearance, physical and chemical properties. Legislation in Hungary and in the European Union seems to be incomplete. There is no document which summarizes and details the risky factors and parameters in case of a risk assessment. Our aim was to develop a criterion system considering the risks related to the use and contact of nanomaterials based on their physical, chemical and biological properties, which criterion system could provide basic principle for a risk assessment thereby make the industrial processes safer both for the employees and those who are in the vicinity.
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The Information Security Risks of the BYOD
176-185Views:224Today we cannot imagine our everyday lives without using our smart devices. While commuting we often get into people - even literally - who are doing their work on their portable devices 24 hours a day. This habit is widespread; there are many solutions that can be used by the corporation to have their employees work on their private devices, besides using it in their personal life. They can use these devices at their home, while commuting, or even while being at their own cubicle at the firm. In this article, we are concentrating on the IT risks of the firm with this work practice from a theoretical point of view. After this step, we will continue our research with investigating the problem of measuring and mitigating of these risks.
