Search
Search Results
-
Potentiodynamic Study of the Effects of Nickel on The Electrodeposition of Zinc from Chloride Media
15-24Views:336Abstract. 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.
-
A Literature Review: Artificial Intelligence Impact on the Recruitment Process
108-119Views:22956This paper aim is to review the implementation of artificial intelligence (AI) in the Human Resources Management (HRM) recruitment processes. A systematic review was adopted in which academic papers, magazine articles as well as high rated websites with related fields were checked. The findings of this study should contribute to the general understanding of the impact of AI on the HRM recruitment process. It was impossible to track and cover all topics related to the subject. However, the research methodology used seems to be reasonable and acceptable as it covers a good number of articles which are related to the core subject area. The results and findings were almost clear that using AI is advantages in the area of recruitment as technology can serve best in this area. Moreover, time, efforts, and boring daily tasks are transformed to be computerized which makes a good space for humans to focus on more important subjects related to boosting performance and development. Acquiring automation and cognitive insights as well as cognitive engagement in the recruitment process would make it possible for systems to work similarly to the human brain in terms of data analysis and the ability to build an effective systematic engagement to process the data in an unbiased, efficient and fast way.
-
Quality Development of a New Type Pharmaceutical Formulation
112-127Views:452The aims of companies to understand internal and external customer demands in order to improve their existing products and develop new ones. Product development aims at understanding customer demands that may influence the production of the product to be manufactured. As a first step in the process, the customer voice method was used to define demands with measurable parameters. A questionnaire survey was used to prioritise them, which were then compared and ranked using a preference matrix. Within the QFD method, technical parameters influencing the satisfaction of customer demands were determined. A correlation matrix was established and the relationship between the technical parameters was investigated. A competition analysis of technical parameters and customer demands was carried out. From the absolute and relative weights, it is easy to establish the order of the technical parameters, so that the most important parameter in terms of meeting the defined customer demands is the determination of the ratio of raw materials, and important parameters are chemical stability, pharmaceutical formulation and particle size.
-
Geometry Around Us - Development of the Skills for Students in the Secondary Education
112-121Views:209In the framework of the project EFOP-3.6.1-16-2016-00022 00022 „Debrecen Venture Catapult Program”t workshops are held in secondary schools in order to show for the students that the precise knowledge about the mathematical backgrounds is an important part of the engineers works. We give lot of examples in our environment for appearing of quadratic surfaces; for instance in architecture, in mechanical engineering life (gear– wheels, twist drills,…etc.).The development of geometrical spatial ability happen by the help of using 3D animations, moreover we investigate the changing of the shape of surfaces by mathematical shoftwares. We are going to built hyperboloid of one sheet and hyperbolic paraboloid.
-
Evolution, Place and Role of Controlling in a Business Organisation
466-477Views:1491The development of controlling can be traced back to the beginning of 20th century. Thus it has one century of continuous scientific development. Controlling has been applied in fields such as finance, manufactureproduction, and trade sales. In financial accounting different activities have been formed for planning and accounting costs and performance. These activities were integrated by management accounting, which serves the ever growing information needs of the management. In addition to the operational functioning of growing and diversification companies controlling covers even the strategic level. The primary focus of controlling activity at 21st-century businesses is to improve organisational performance. Previously there were differences between the German and Anglo-Saxon trends. According to the German trend controlling is a set of instruments that provides the required information needed for management decision-making and based on it planning, monitoring, and controlling activities could be achieved. Furthermore, the German trend considers that a particular department is responsible for controlling activities. Conversely, according to the Anglo-Saxon conception controlling is considered as a part of management and managers are responsible for efficient allocation of resources, the so-called „management control”, carrying out planning and controlling tasks at the same time. Some differences can be recognised between the two conceptions about where is controlling placed in companies within the organisational framework. However, it can be stated as a fact, that management and controlling are inseparably linked, and the aim of both fields is to increase the performance of a company.
-
Topics in the Research of E-book Usage and the Applicable Findings of it for Product Development
453-479Views:344This article aims to review the recent academic researches on print and e-book usage experience and preferences. Their findings will be compared to the results of a primary research previously conducted by the author. Using these data the article presents the Five Product Level of e-books and e-readers. Reviewing the Hungarian and International e-book / print sales figures and publishing trends, the article shows ways for further research for a better e-book product understanding and highlights a few promising ways for future product development in e-books and e-readers.
-
Analysis of the Policy Background of Transport Related Use of Renewable Energy
124-129Views:286The EU energy policy prioritizes the following principles: sustainability, competitiveness and security of supply and addresses the reduction of greenhouse gas emissions as a priority. The related EU policy (including the White Paper on Transport) outlines these principles, identifies goals and opportunities for action. At company level methodological guidelines and standard procedures can be used to assess the carbon footprint of the organization, to generate efficiency goals and to prepare action plans. In the Hungarian policy framework, a comprehensive National Sustainable Development Framework Strategy defines the basic principles for the analysis of the sectorspecific or regional strategies. Sustainable Energy Action and Climate Plans (SECAPs) integrate energy and climate issues and include interventions and improvements for the better use of renewable energy sources in transport at municipal level. As a summary it can be stated that exploration of the policy background would needed to influence the use of renewable energy sources for transport and definition of the development goals can help economic organizations to transform their mobility patterns and reduce related carbon footprint.
-
Use of IoT Tools to Support the Decision-making Process
125-141Views:435Nowadays sensor networks and other systems, based on the IoT concept demonstrate the benefits of their usage, which includes the support of the decision-making process, therefore achieving an optimal result in the context of more and more fields. In this experiment, an additional sensor network has been developed based on a modular system derived from a previous development by means of a target-specific modification of the required modules to measure environmental data in a drying chamber used in food industry. The main objectives include the development of the device, the verification of the measurements of the factory-built device, providing an interface, which is able access the measurement data and after gathering experience from the usage, further developing the system and extending the functionality of the web application. The built-in data acquisition and control system stores the data of the measurements in the form of text files, while our additional data acquisition and control system uses a unified measurement database to store the data. According to the structure, a task-specific application has been developed in order to unify the two sources. Analysis of collected data was performed after running the ETL (extract, transform, load) algorithm converting the transaction-oriented database. The experiment shows so far the benefits of the multi-point measurements by a significant difference between the measured values, so we certainly consider further developments.
-
The Role of Industry 4.0 and Digitalization in agriculture, Especially in Romanian Agriculture
Views:716The 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.
-
Development and Characterization of Sisal Fiber Reinforced Polypropylene Composite Materials
348-358Views:693In most of the developing countries, plastic polypropylene is not fully recycled and converted in-to use after it is once used. Sisal fiber is also widely available in different developing countries like Ethiopia. Adding this two materials and developing automotive interior part was taken as a primary motive for it reduces cost and is environmentally friendly. Thus, the main purpose of this research is to develop composite material from natural fibre (sisal fiber) reinforced with recycled plastic waste (polypropylene) for interior automobile accessories specifically for internal door trim panel application. This research examines effect of fiber length, fiber loading and chemical treatment of fiber on the physical and chemical properties of the sisal fiber reinforced polypropylene (SFRPP) composite material. The waste polypropylene and the treated and untreated sisal fiber with variable length and weight ratio (fiber/matrix ratio) were mixed. Flammability of sisal fiber reinforced Polypropylene (SFRPP) composites material was examined by a horizontal burning test according to ASTM D635 and chemical resistance of the sisal fibre reinforced PP composites was studied using ASTM D543 testing method. The result on the flammability test shows that treated fiber has lower burning rate than untreated fiber and decreases with increase in fiber length and fiber loading. The resistance of the composites to water has increased as the fiber length increases and decreased as the fiber loading increase. Generally, SFRPP composite is found to have better resistance to water than NaOH and H2SO4 and treating the fiber has brought considerable improvement on chemical resistance of the composite. Fiber loading and fiber length has positive and negative effect on the flammability of the SFRPP composite respectively.
-
The Factors of Digitality and Sustainable Competitiveness in the Domestic Context
217-226Views:350The recovery of international relations and the development of technology are in correlation with the increasing globalization tendencies. These processes increase the interdependence of countries, but also the competition between them. The factors of competition are constantly changing and being revalued. As a result new elements appear in addition to the traditional elements, and there are assimetries between existing components. The economic performance of a country increasingly depends on the knowledge and technology, its economic success on the use of knowledge. The purpose of the study is to present and analyze the proxies that define and shape the role of Hungary by IMD Competitiveness Research Center and by the complex indicators developed by Korea-based SolAbility. It also draws attention to all the factors that will significantly effect our country's economy in the future.
-
Algorithmization in Playful Way
105-111Views:258In the “Extending the Technical Researcher Capacity, Developing Research Services and Building a Knowledge Square in Engineering Education” sub-program of the EFOP-3.6.1-16-2016-00022 "Debrecen Venture Catapult Program" project a research group on engineering and innovation skills was founded. This team undertook to develop skills development workshops for high school students in connection with mathematics, physics, descriptive geometry and informatics topics. In this paper the "Algorithmization in playful way" workshop will be presented, where we develop the student's algorithmic skills by playing computer games.
-
Development of a Family Business in a Franchise System
390-400Views:492The 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.
-
Knowledge of Control Methods and their Application in the Practice of Small and Medium Enterprises in the Northern Great Plain Region
441-452Views:642Like large companies, the small, and medium-sized businesses need also all the information to ensure the efficiency and effectiveness of their business by making sound management decisions. Compared to large companies, SMEs have significant development potential, which can be created in part by the companies themselves, possibly through the introduction of new-modern management - business administration methods or economic policy measures (= targeted and efficient support system), which, by stimulating R & D & I processes, serves to increase competitiveness and contribute more and proportionally to domestic GDP and exports. The analysis presented in the study covers the controlling knowledge of the leading SMEs of the Northern Great Plain Region, the conscious or unconscious application of controlling tools, the assessment of succession, customer and supplier valuation and certain areas of managerial accounting. Overall, it can be concluded from the small sample size that the use of controlling tools is proportional to the size of the business, but nevertheless, many mid-size business executives do not require the collection and analysis of insider information that could explicitly help decision making for example through advanced costing procedures.
-
Survey of the Service Offer of Fitness Clubs for Group Classes in Debrecen
35-48Views:533The 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.
-
Changeable requirements & Answers With a dynamic system in order to continual improvement of the environmental performance of a rubber industrial big company
81-90Views:296The 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.
-
Simulation of a Quadcopter with LabVIEW
46-49Views:233The aim of the paper was to create a LabVIEW-based Real-Time embedded system supported development environment, which was used for the Real-Time kinematics and dynamics simulation of a quad copter as well as the adherent state-feedback controller. The state-feedback controller was designed with Linear Quadratic Regulator (LQR) based method.
-
Comperative Economic Analysis of the Determining Leagues of European Clubfootball
22-35Views:661Nowadays sport is not just all about entertainment, or about social cohesion but also it has serious economic and business aspects. Sporteconimics is an individual concept and sector. Sport businesses are contributing more and more to national incomes. Football business are specially important parts of this complex system called sporteconomics. The aim of my research is to create an economic and also comparative analysis of the five top European football leagues, also called as the “Big5” which are responsible for 74% of the total football revenue in Europe. By the analysis of the 2019 UEFA report it can be stated that in these leagues more than 60% of the competing clubs achieved positive operating profits, but the structure of their revenues warns them to look for opportunities to increase their operating revenues. According to the data it is clear that wage cost is the most significant cost element in the industry as they cover 53-68% of their total revenue. These statements set the course for the economic development of European football. The management of these outstanding football clubs may give example to the ones falling behind including Hungarian football businesses.
-
Pin on Disc Tests of Closed Cell Aluminium Foams
353-357Views:404Metal 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.
-
Learning Curve Based Sigma Level Determination in Interrupted Non-Production Processes
260-270Views:269The 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.
-
Changes in the Financial Condition of Families in Hungary between 2000 and 2019
712-722Views:498The financial condition of families living on wages is function of many factors. It is determined, among other things, by the development of wages, social benefits, tax rates and the amount of allowances that can be granted. The part of the tax system that affects the largest segment of individuals changes every year, and even during the year, reducing predictability. In recent years, discussions over the taxes have shown that the rate of personal income tax cannot be evaluated separately from the social security contribution rate. Gross average earnings - on the grounds of raising the minimum wage and the guaranteed minimum wage - have more than four-times in nearly 20 years. However the rate of growth is higher in the average net earnings due to changes in the tax system. Compulsory determined wages increased to almost six-times over the years under investigated. But in 20 years, how much has the income situation of an average family living on a salary become more favourable or more unfavourable? In our study we are looking for an answer to how the increase in the minimum wage and the changes in the law how to have affected the livelihood.
-
Servant, Ethical and Authentic Comparative Analysis of Leadership Styles in the Light of the Challenges of the BANI World
43-52Views:444In a globalised and accelerated economy, managers are under increasing pressure to reconcile organisational goals that are independent from human being with the reality of human relationships. The human being, as a being with intellect and senses striving towards happiness, is the focus of positive leadership styles and is their major concern in the field of management theory. In this article, three such positive styles, authentic, servant and ethical leadership principles and their operating conditions are compared using international literature. The literature time span of about two decades shows that the evolution of the ethical leadership literature has slowed down, while the authentic and servant leadership literature has continued to evolve and is still evolving today. The comparative table that appears in this study highlights both commonalities and distinctions, in that, in addition to high moral and ethical standards, the authentic style focuses primarily on the person of the leader, the ethical leader on the ethical standards of the organisation, while the servant leader focuses on the development of the well-being of the subordinate, the other person, even through self-sacrifice. We intend to use the results of this research to investigate measures of positive styles, preparing the scientific ground for future primary empirical field studies.
-
„Return to the Countryside” – The Retention Possibility of the Sport
292-307Views:586Nowadays, one of the most interesting parts of sociology is the research of the rural areas’ specific features. Within these studies the rural areas ability for survival and to retain forms an important basis. A basic pillar of these, that the youth from these areas become sufficiently motivated to return to their rural homeland after finishing their studies and be able to redound the local social and economic development. Sadly, we experience the opposite of it. Young generations are fleeing to large cities and in medium or long term it leads to the decay of these involved settlements; in worst case scenario the results can be irreversible. In close relation with the aforementioned, we have to mention the specific behaviour of the local – rural – elite, which can be the source of further problems. In the course of our research, we wanted to investigate, that what is the reason that university students, who are studying in large cities don’t want to return or move to rural areas. Furthermore, we tried to give an inside view about their opinions of rural areas and the life in the countryside.
-
Analysis of Social Media Activities - Through the Examination of Handball Clubs Competing at Different Levels
39-53Views:644In Hungary, handball enjoys special attention and support, this is true not only for our country, but also for Europe, and the sport is gaining more and more space worldwide. One of the biggest innovations of the last two decades is certainly social media, which has reformed the basic strategies related to information transfer and traditional marketing activities. The processes of content production on these platforms have radically changed, which every sports club should pay attention to, as they can gain significant advantages in terms of economics, marketing and community building if they are able to communicate well. Three sports clubs competing at different levels were compared during a qualitative study in terms of their social media marketing strategy activities, namely PICK Szeged, Balatonfüredi KSE – BFKA Balatonfüred and DEAC handball team. The basic concept of this research model was built on how the online marketing communication activities of club teams fighting for different professional goals at different levels differ from each other, as well as what are the development opportunities and aspects that can be used as effectively as possible on social media platforms. The handball club teams agreed on several research questions, but a significant difference could also be discovered in one area, in which the professionals responsible for social media disagreed or represented a different point of view. Looking at my results, it can be concluded that behind a successful online marketing strategy there is always serious preparation and planning work, as well as the diversification of content production on different platforms, because the consumer communities of the platforms are also different from each other.
-
Designing Aspects and Classification of Bearing Industry Box Handling Apparatus
325-334Views:271It 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.
