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Assessment of Mycotoxin Contamination of Foods
90-96Views:315According to RASFF reports, in the present, pathogenic microorganisms, pesticide residues and mycotoxins are the most frequent food contaminants. In 2014, 12% of the total notifications were caused by mycotoxin contamination. In this study we have analyzed the RASFF notifications that are related to the mycotoxin contaminations. It can be stated that aflatoxin is responsible for 90% of the total mycotoxin notifications, and the total notification number has decrease by 40% since 2004. However the number of oc hratoxin-A notifications are slowly increasing. Aflatoxin was mainly detected in nuts and nut products and oil seeds, especially groundnuts, while ochratoxin-A was detected in fruits (more than 85% in figs) and spices. The number of deoxynivalenol and fumonisin notifications were significantly less, however some appear every year for cereals and bakery products, especially corn and wheat. Zearalenone and patulin were detected only in 16 and 18 cases but 22% of the patulin notifications are related to baby food, so the tracking of patulin is really important.
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Vocational Training Students’ Self-Assessment in Higher Education
223-231Views:305This paper is intended to clarify the phenomenon that lower achieving students tend to evaluate their own academic performance less accurately than those who are better in their studies. Former studies have found that lower performers generally overestimate while higher performers underestimate their performance. The current study analyses the self-assessment behaviour and efficiency among Hungarian higher vocational education students. We found that the lowest level of higher education students typically overestimate themselves. Over results strengthen the empirical evidences in former studies that higher-achieving students evaluate their performance more accurately than their lower achieving fellows. Furthermore we found that lower-achieving students tend to evaluate their performance less accurate and typically over-assess their examination results than high-achieving students, who generally evaluate themselves more accurate and rather underestimate. We analysed the difference between the two genders too. Compared to female students, male tend to evaluate their results more accurate and overestimate their own performance more.
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Developing of Analytical Methods for Determination of Greywaters’ Detergent Content
42-47Views:308In our research we improved the technologies for the determinations of greywaters’ detergent content. We examined the quantity of anionic detergent (ANA) in synthetic greywater with Hyamine reagent using two-phased titrimetric method. We added to the synthetic greywater samples phenolphthalein indicator, acid mixed indicator and chloroform. After we shaked the mixture, and we got two separated phase. We titrated the mixture with cation active Hyamine reagent. The quantity of the chloroform and the quality of greywater samples (syntetic and real) were also changed in these experiment to determinate the actual ANA content. It was shown that the applied method is representative and reliable, too.
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Y Generation and the Job Seeking
490-501Views:1555Generations Y and their expectations have caused many surprises for employers. They are different compared to their predecessors. Millennials were born in socialism in our country, but they did not experience from it so much, because they grew up in democracy. Their main feature is that they are openminded to opportunities, and they learn quickly modern technology innovations. They have a strong self-conscious, and are highly proactive. They prefer forms of atypical work, because they can carry out their work anywhere in the world due to the internet access. It is very important for them to keep the work - life balance. These properties have overwritten the conventional management methods, such as conventional recruiting techniques. This paper examines the main job seeking features of the Generation Y based on an empirical research.
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Status of the Hungarian Agricultural Higher Education
263-281Views:269In our article we are publishing a brief overview on the actual status of the Hungarian agriculture and agricultural higher education. We are presenting the changes of the agrieconomy in several economies of the world and the actual economic status of the Hungarian agriculture as well. We are showing the education level and the age of the employees working in the agriculture. We are presenting some information about the agircultural higher education, and some problems and perspectives of the investigated sector.
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Security Evaluation of MODBUS RTU Protocol, Testing New Cryptographic Methods
35-42Views:253In the late decade, the number of attacks against SCADA, CIS, or ICS systems had grown considerably. The purpose of this paper is to summarize the results of the implementation of a new cryptographic method on th e MODBUS RTU line.
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Safety Index Based on Geometric Probability Is Proposed to Represent the Uncertainty of Soil Parameters for Spread Foundations
43-52Views:269The overall factor of safety in geotechnics can be defined as the product of four partial factors of safety. One of these partial factors represents the uncertainty of the soil parameters. Based on geometric probability, a safety index is proposed to calculate the uncertainty of the soil parameters for spread foundations. Numerical examples have also been presented.
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Analysing the Possible Connection Between Dark Triad Personality Traits and Ethical Attitudes of University Students
57-67Views:449In our paper we examined the possible connection between the Dark Triad personality traits and ethical attitudes among university students. The analysis of both topics has become the focus of interest in the past decades. Researchers consider the impact of many factors in the background of ethical attitudes and behavior. Among other things, personality is also a potential factor. The Dark Triad personality means the coexistence of the socially undesirable narcissism, Machiavellianism and psychopathy. Such people are characterized by self-love, aggression, the lack of guilt or conscience, so they are less likely to have ethical attitudes. In our research, this connection was examined by a questionnaire survey conducted among first year students of University of Debrecen Faculty of Natural Sciences and Technology and Faculty of Economics and Business. Respondents completed the validated Dirty Dozen questionnaire which was developed to measure Dark Triad personality and a questionnaire adapted from Lozier's research in which respondents were asked to evaluate school situations whether they are ethical or unethical and to what extent they are unethical. In our research, we were looking for significant relationships between the strength of the Dark Triad characteristics and the ethical judgment of situations. We also analyzed the differences between men and women and students of the two faculties.
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The Logistics Conception of the Value Chain of Wood
139-154Views:320The importance of the forest management and timber producing is highly determined by the value chain of timber. The forest management and timber producing can basically contribute to achieve the goals of the sustainable development as producing and processing the wood as a raw material. The relationship of the multifunctional forestry management as producing different scale of products and services results that changing a member of the chain might cause the total net alternation of the forestry system’s added value. The added value of the special areas of the appropriate and sustainable forest management is the infrastructural, recreational and touristic services.
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Review of Drive Systems Applied in Modern Vehicles
728-732Views:313In this publication we review the drive systems of modern electric and hybrid vehicles. We also discuss the various types of electric motors, batteries, as well as fuel cell systems applied in them. Furthermore, as an important part of hybrid vehicles is the internal combustion engine, we review the literature about the methods used to.
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Impact of Digitalization on Domestic Trade Strategies
318-333Views:1682The aim of our study is to reveal the fit of digital space into current and future trade and to assess the effects of digitization on Hungarian trade strategies. The information gathering and purchasing habits of consumers have changed dramatically in recent years. Consumers today make buying decisions based primarily on convenience, effectiveness (fast and convenient access to products at adequate price/value ratio), and experience. Adjusting to these trends, traders developed novel trading strategies, and the use of achievements of digitization is an integral part of these strategies. One aspect of digitization is the increasing global development of e-commerce. The Hungarian online commerce have also been expanding significantly from year after year: based on 2018 data, domestic and foreign online sales volume have passed 1000 billion HUF. The Hungarian online consumers buy on the Internet more and more often and at greater and greater value. The online shopping on virtual reality platforms may make this purchase mode more experiential. Webshops have to meet new consumer needs, and deliver the ordered products as soon as possible, preferably within 24 hours. An increasing number of parcel delivery options has begun becoming more and more popular (e.g., automatic parcel terminals, pick pack points). However, traditional channels should not be buried, either. Their obvious advantage is that consumers can take their choice based on multiple senses and it also gives them more room for impulse buying. Combined with the digital technology compliant with contemporary requirements, this can offer a complete shopping experience. Nowadays, recognizing this need online and traditional channels have been mixed in several cases (e.g., multichannel, omnichannel, cross-channel sales) and offer several options for consumers during the purchase process. The sales area optimization of traditional shops and the buyer paths aided by digital technology (e.g., digital shelf labels) are designed for the buyers’ convenience. The newest innovations imply automation of the buying process making the whole process more convenient and more personalized with the use of sensors (e.g., Amazon Go) or robots (e.g., Pepper). In our future purchases, digital personal assistants will appear as digital versions of sales personnel.
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Effect of nanomaterials on work safety
304-312Views:197Nowadays, 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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Efficiency Analysis of Production Management System
401-415Views:292Due to the continuously evolving technology, even more escalating market competition has emerged between the companies. This competition is not only about the logistics related processes, it also appears to be significant for the production since the manufacturing companies form the center of global sale streams and without them the items found in logistical processes cannot be created. The role of production’s optimization and efficiency in the supply chain continuously grows since this is the part where a company’s most cost is produced. Our research objective was the examination of a company that applies various manufacturing, assembly technologies, and the used tools and softwares for this purpose were the SAP Business One ERP system and it’s add-on, called PPS One, the latter originated in Switzerland. We used these softwares to provide solutions to companies, especially to those that are dealing with manufacturing and production, for the optimization of their workflows, operations, supervising and controlling of their material. We also monitored from production technology’s elements the capacity planning, production orders, schedules, production tracking and cost accounting. We have made proposals during the analysis that might improve the company's strategy, competitiveness and increase it’s efficiency in business, and at the same time they can facilitate the company's pricing and inventory management activities.
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Optimization of Automotive Industry’s Manufacturing Process with Lean Tools
81-89Views:502Lean plays i mportant role in industrial environment. Automotive industries use lean tools in order to reduce cost and i mprove productivity. To achieve the company's objectives and so lve the detected problems I also used lean tools. By using lean tools we want to decrease total process cost (TPC). In order to achieve this target, the three-shift production has to reduce in two-shift production, which result decrease in the human resource costs and production costs. In order to reduce shifts we have to increase overall equipment efficiency (OEE) and eliminate minimum 50% of wastes by implementing 5s methodology, using Poka-yoke and scheduled maintenance.
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Business Students’ Attitude to Social Responsibility
1-10Views:377The 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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Egy világméretű sportesemény, a 2017 Vizes Világbajnokság néhány társadalmi aspektusa a jövő managereinek szemszögéből a felkészülési időszakban
40-59Views:975Hungary 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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Laboratory investigation of the rediffusion of contaminants originated from the aquiclude
232-238Views:213Many organic pollutants are released into the soil and thus into the groundwater due to anthropogenic effects (a chain of harmful human activities). Layers with low permeability (e.g. clay) play an important role in blocking the path of these contamintants. However, due to their sorption and diffusion properties, such aquiclude layers can also serve as long-term sources of contamination. Once the layer is contaminated, it is already very difficult to recultivate, and there is a potential for the pollutant to spread to higher permeability layers by slow diffusion processes. This phenomenon is defined as a so-called rediffusion process, in which contaminants are retransferred from the aquiclude to the layer with higher permeability. The purpose of this study is to demonstrate the possibility of modeling this rediffusion process in a laboratory scale and to quantify the effect of influencing parameters on pollutant transport.
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Maintenance Strategies and Life Cycle Costs of Renewable Energy Systems
106-116Views:232Life cycle costs are important factors in decisions on renewable energy investments. Since maintenance costs generally constitute a high portion of the life cycle costs, the maintenance strategy applied in a project can affect the bottom line significantly. The effective maintenance tools used in the production industry (e.g., diagnostics, condition monitoring, data management, integrated information systems, machine learning, and automated decision making) can be involved in planning and maintenance of renewable energy systems to gain the benefits of these approaches. In this paper the effects of maintenance strategies on life cycle costs are investigated and the benefits of up-to-date condition monitoring techniques are presented through case studies.
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Quality Improvement in Higher Education – Role of Indicators and Student Feedbacks in Course Improvement
1-10Views:239Customer oriented conduct and process-based thinking have become quasivital pillars of durable competitiveness for the business world today. Following this approach should result in satisfied customers, decreased costs, and efficient employees. However, the actors in higher education are just starting tolerant his way of thinking. The increasing focus on quality issues and the process-related approach to this is catalyzed by several factors. These concept is not a new issue at the Budapest University of Technology and Economics. The Department of Management and Corporate Economics as the flagship of teaching and researching quality management at the University looks for opportunities to give practical answer. Based on this the purpose of my paper is to demonstrate different examples at the different level of processes in higher education.
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Analysis of Driving Data of Lorries on a Certain Route
347-352Views:219In this paper the development of a driving cycle for lorries traveling a certain route is presented. A typical transportation route has been selected, which used by lorries instrumented with the proper data-collecting equipment. We used these on-board units to collect data over a long time period in the real-life traffic. We filtered the collected data, and carried out a statistical evaluation on the basis of the measured data.
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Survey of the Dynamic Modeling Methods of Light Vehicles
723-727Views:346Vehicle dynamics models can be classified into two groups based on the model simplification. There are simplified models based on neglections, these models do not contain all body directions: longitudinal, lateral and vertical directions. There are several reasons for the simplification: control, estimation and analysis methods can be used only with simplified models, or another reason is the computational cost. Apart from simplified models, there are detailed/truth vehicle dynamics models which aim is to provide a virtual plant of the real vehicle for virtual prototype-based development. In this paper, some simplified vehicle models are presented, after a short introduction.
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The implementation of Balanced Scorecard System in social enterprises using the social-cooperatives – compliance with the needs of external organisations
300-317Views:358To discover the major economic problems of social cooperatives, we have made a survey. The analysis of this survey stated that the quality of available labour force and the finding of the proper target markets are the biggest concerns of social cooperatives. By this survey a Balanced Scorecard model (BSC) was implemented, which is an adaptation of Bull’s model (Bull, 2006). Present paper demonstrates the BSC modul to satisfy the needs of external partners and authorities. These needs and the tracing indicators were determined, furthermore the frequency of the indicator measurement was also proposed.
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Application of drones in solving EHS tasks
296-303Views:314Drones or unmanned aerial vehicles (UAVs) or unmanned aerial systems (UAS) are unmanned aerial vehicles without pilot and passenger on board. These tools have been used primarily in the military, but have now grown significantly in applications including industrial use, services, disaster management, and the civilian sector. We briefly introduce the most important classification criteria for drones. In addition, in this study, we have collected the uses that the industry and the EHS sector can or will use in the future. We mention the most important drone-mounted and mountable accessories that can be used by users for their specific tasks.
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Successful International and Hungarian Family Businesses
280-287Views:702The purpose of family businesses are maintaining market competitiveness, develop sustainably and achieve their results in the dynamic market environment. The family run businesses are contributing significantly to the economic growth. They are interested in long-term preservation of values. The study presents the charachteristics of the world’s TOP family owned companies. In order to proving the economic value and importance of the Hungarian family businesses the study contains some findings of a representative national.
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Development of a Family Business in a Franchise System
390-400Views:423The purpose of this study was to examine that franchise as a form of enterprise in perspective to existing family businesses how can they operate this way. Why is this form better for them, what advantages it has? In this case an ice cream shop’s economic inidicators was examined which one is owned by a hungarian family in JászNagykun-Szolnok county who runs several shops like this. That is why this study made, to find out is that possible to run it sucsessfully and what costs does the newcomers in the franchise business network have to pay and how much is the time on the return of investments.
