Search

Published After
Published Before

Search Results

  • Impact of Digitalization on Domestic Trade Strategies
    318-333
    Views:
    1452

    The 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.

  • Opportunities in circular agriculture
    17-23
    Views:
    249

    Water is the source of life. For the long-term preservation of water resources it is very important to develop sewerage and sewage treatment. Sewage sludge is not primarily a waste that needs to be disposed of but also a secondary raw material or a renewable energy source. Municipal sewage sludge, and sewage sludge composts, contain relatively large quantities of organic matter, so agricultural utilization can be a major potential of its use. The transition to sustainable agriculture is becoming more urgent and increasingly important as it can provide a solution that looks to the future. Sustainable agriculture should work according to natural law, so it should be self-sustaining, that means, cycles, where in to one process the waste created can be used as raw material in the other process. The beneficial effects of sludge on soil include increasing soil organic matter content, increasing soil fertility, nutritional capacity, microbiological activity, and complex fertilizing effects. However, when is applicated, there is always a problem with the occurrence and accumulation of toxic elements and drug residues. The traditional model of economic activity is the linear model. This model ignores the high economic social, and environmental costs of exploiting, transforming and removing of the resources therefore it is not sustainable in the long term. The circular economy offers an alternative model in which the products materials and resources are maintaned as long as possible and the amount of waste is significantly reduced or lost. It is also possible adapt the overtuned ecological, biological balance of agricultural production systems, with a closed loop circular model. According to this model, the development of tillage technologies and the restoration of organic materials and nutrient supply are possible.

  • Possible ways of IP Commercialisation in the European Higher Education Ecosystem
    56-74
    Views:
    237

    Strong links between universities, and companies can play crucial role in promoting taking into practice of ideas that drive the knowledge society, and in raising competitiveness and living standards. In academic terms of IP management, all activities aimed at sharing knowledge generated in research institutions as a knowledge transfer including scientific publishing, conference presentations, collaborative research with external partners, and contract-based clustering activities, such as licensing and spin-offs. In a narrower sense, the IP management means technology transfer is aimed at placing a given technology on the market, and includes any process by which the recovery partner becomes able to produce new products or services. IP with traditional university mission, values, and activities primarily focusing an active university role in entrepreneurship and contracts with private sector for IP commercialization. This paper gives a comprehensive overview about IP management in universities of the European Higher Education System including the following aspects: partnerships (licensing, industry collaborators); IP invention (disclosures, patenting); proof of concept research bridging the gap between lab discoveries and market application (highly innovative R&D to solve practical problems and commercialization research aiming patented technologies towards business exploitations) and commercialization (start-up incubators and strengthening the entrepreneurial attitudes and competencies). The methodology based on secondary research analysing EU, OECD, on-line literature sources and relevant, up-to date statistical data as well. The conclusions and recommendations based on this „desk research” work reflects the authors.

  • The Measurement of The Three Components of The Cutting Force During The Turning Process
    139-146
    Views:
    118

    We carried out the measurement of the three components of the cutting force as a function of the modification of the depth of cut during the longitudinal turning process. The results show that if we increase the depth of cut, all three components of the cutting force shows increasing tendency, regardless of how much the cutting speed and feed speed were performed during the measurements [1] [2] [3] [4].

  • Implementation of Lean management Practices in Azerbaijan (on the Example of a Private Company)
    30-40
    Views:
    115

    Organizations are facing crucial modifications as global market and conditions change day after day. To keep up with fast changing realities, it’s important to apply innovation decisions to the current stage of organizations. Lean management consolidates tools and techniques to revert from traditional way of operating to the new human oriented one. In the carried-out research its outlined, human resources management plays a big role in spreading and supporting lean initiatives. It was suggested that, Lean and Human resources management are compatible and should work together to obtain sustainable success by implementation of an innovation approach such as Lean.  Both lean management and human resource management focus on the same goals with different methods in terms of control of businesses. All positivist approaches and practices are included in these approaches and practices, which are developed with a focus on the interests of the community, in order for the process to be concluded positively. The employee-centred management approach of human resources management is crucial to lead and maintain good environment in the teams. For this reason, in the lean management philosophy, it is aware that the corporate structure has responsibilities in terms of training the employees, eliminating their problems and supporting them in struggling with the responsibilities they undertake. This paper is quantitative, online survey has been conducted with employees of a private company in Azerbaijan and results were analysed in statistical analysis software SPSS and relevant suggestions and recommendation were given for reorganization to enable lean friendly environment on a sample of the given company.

     

  • Laboratory investigation of the rediffusion of contaminants originated from the aquiclude
    232-238
    Views:
    115

    Many 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.

  • Use of IoT Tools to Support the Decision-making Process
    125-141
    Views:
    238

    Nowadays 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.

  • Specialties of First SMED in Pharmaceutical Manufacturing
    1-11
    Views:
    219

    Single Minute Exchange of Die (SMED) is considered as an effective lean management method increasingly used in pharmaceutical manufacturing. By reducing change-over times and costs, the successful implementation of the first SMEDs may bring a significant increase in terms of manufacturing flexibility. The purpose of this study is present the special factors that fundamentally determine SMEDs applied especially in the process of pharmaceutical manufacturing. By focusing on a well defined part of the pharmaceutical manufacturing process, lasting from Weighing and Measuring to the end of Tablet Pressing, the study also aims to highlight the benefits of SMED itself. The findings of the research are based on the practical experiences of four SMEDs implemented in various sections of production. According to the experiences and considering industrial specialties, the implementation of SMED has to harmonise with the requirements of Good Manufacturing Practices (GMP) which are representing the golden quality standards of pharmaceutical manufacturing.

  • Introduction to Design and Analysis of Torsional Vibration Dampers in Vehicle Industry
    310-324
    Views:
    343

    The crankshaft of today’s internal combustion engines with high performance output are exposed to harmful torsional oscillations originated from the unbalanced gas and inertial forces. To avoid the fatigue damage of engine components, caused by the undesired vibrations, torsional vibration dampers can be applied. Viscodampers are one type of the torsional vibration dampers, which operational fluid is silicone oil. For cost-effective R&D activities and production, finite element and finite volume numerical discretization methods based calculation techniques must be involved into the engineering work supported by the modern computer technology. The aim of this paper is to provide an insight into the multidisciplinary design and development process of visco-dampers in vehicle industry applications. Four different examples as structural, fatigue, CFD analyses and structural optimization have been introduced in the present work. It turned out from the static structural and fatigue analyses, that the investigated damper has safety factor over the limit for both static structural and fatigue analyses, so it is suitable for the given load conditions. In the structural optimization process 34.36% mass reduction has been achieved. According to the coupled fluid dynamic and heat transfer simulations a rather stagnating air zone evolved between the engine and the damper during the operation, which can cause efficiency reduction of cooling fins mounted onto the housing. In light of the numerical results, the suitable damper position has been determined for the highest heat transfer.

  • The Possible Job Creation and Job Destructive Effects of Technological Development
    53-61
    Views:
    337

    Throughout history, technological change has often provided the basis for employee anxiety. Between 1811 and 1816, a group of workers in England who called themselves "Luddists" destroyed machines, because they thought it would endanger their workplace. 19th-century thinkers and economists such as Karl Marx and David Ricardo predicted that mechanizing the economy would ultimately worsen workers' conditions, depriving them of a decent wage. Over the last century, John M. Keynes (1930s) and Wassily Leontief (1950s) have expressed their fears that more and more workers will be replaced by machine solutions that will lead to unemployment. In recent years, Brynjolfsson and McAfee (2014) have argued that existing technologies reduce the demand for labor and put some of the human workforce at a permanent disadvantage. However, there are a number of compensation mechanisms that can offset the initial displacement effects of automation and process innovation in general (Vivarelli, 2015). First of all, while workers are being replaced in industries that introduce new machine technology, additional workers in new industries are needed. Second, automation (and process innovation in general) reduces average costs. Acemoglu and Restrepo (2017) found that this results, on the one hand, in the effect of price productivity (“priceproductivity”) (as production costs decrease, the industry can expand and increase labor demand); and, on the other hand, it leads to economies of scale in production (the reduction in costs due to automation leads to an increase in total output and increases the demand for labor in all industries). Similarly, Vivarelli (2015) argues that lower average costs can result in lower prices (if the industry's market structure is perfectly competitive), stimulate product demand, or result in extra profits (if the industry's structure is not perfectly competitive). If these extra profits are reinvested in the company, this investment can create new jobs. The presentation intends to present these counterbalancing cases and to provide real examples based on the literature.

  • Direct Optimization of an Automotive Sheet Metal Part Using ANSYS
    134-142
    Views:
    443

    Optimization of automotive parts nowadays is mainly used to design lightweight and cost-effective vehicle parts in order to improve the cost and efficiency. In this research, a sheet metal part was taken into consideration and optimized using direct optimization module in ANSYS to evaluate the process. An initial Finite Element Analysis (FEA) was done on the sheet metal part by adding forces and constraints in order to initiate direct optimization. The purpose of the optimization is to minimize the mass of the sheet metal part and maintaining a certain Factor of Safety (FOS) by automatically modifying the sheet thickness and the dimension of the side holes. As a result, the best candidate point with 23% mass reduction was found which complied with FOS value was selected for optimal geometry.

  • Generative Design of Articulated Rod of Radial Engine
    36-47
    Views:
    482

    The constant need for improvement drives humans to look for the best possible option in every field. Computer Aided Design (CAD) is no exception, to follow the best method of designing a product and finalizing it, researchers came up with an idea to generate multiple designs using fixed input values and finalizing the most appropriate one. The objective is achieved using an iterative design process based on algorithms by a specific software. Generative design introduces a new experience based on the Integration of machine dynamics in the manufacturing of objects and about experience. In this work generative design method was investigated on an articulated rod, one of the most important components of the rotary engine, to effectively improve the overall working performance of the engine and enhance its performance by decreasing its mass. Since fuel consumption by the machine can be greatly reduced by lowering the mass, so the goal is to minimize the weight of the rod while mechanical characteristics have to be within the acceptable values. Also, finite element analysis (FEA) was investigated on the part as to ensure the reliability of the rod before and after optimization.

  • The Impact of Optical Character Recognition Artificial Intelligence on the Labour Market
    9-16
    Views:
    373

    Because of present day information technology, there is neither need to plant complicated computers for more millions price if we would like to process and store big amounts of data, nor modelling them. The microprocessors and CPUs produced nowadays by that kind of technology and calculating capacity could not have been imagined 10 years before. We can store, process and display more and more data. In addition to this level of data processing capacity, programs and applications using machine learning are also gaining ground. During machine learning, biologically inspired simulations are performed by using artificial neural networks to able to solve any kind of problems that can be solved by computers. The development of information technology is causing rapid and radical changes in technology, which require not only the digital adaptation of users, but also the adaptation of certain employment policy and labour market solutions. Artificial intelligence can fundamentally question individual labour law relations: in addition to reducing the living workforce, it forces new employee competencies. This is also indicated by the Supiot report published in 1998, the basic assumption of which was that the social and economic regulatory model on which labour law is based is in crisis.

  • Experimental and Numerical Investigation of Clinched Joints
    80-86
    Views:
    102

    In this study DP600 type of steel sheets were examined by experimental and numerical simulations. The clinch joint is can be created between thin sheets with a punching tool and a die during plastic deformation. The punching tool is deforming the sheets with a given force. The process is kind of a press forming joining technique which makes the joints defines by the tools. During the process the sheets are plastically deformed and the specific “S” shaped undercut is formed. This shape is one of the most essential geometrical parameter of the joints.

  • Online self-learning
    542-553
    Views:
    187

    In this paper four short sessions are reviewed in the theme of introductory programming. The sessions were performed in four different student groups from the age twelve to seventeen in two different schools. The paper summarizes important input and output properties of the groups, like the preliminary studies of Informatics and the grades in both Informatics and Mathematics – if available – also the results of the learning process during the sessions. The focus is on the skills of programming and self-learning, and the differences of it in respect to the age, the gender and the preliminary studies.

  • Rotational molding of plasma treated polyethylene/short glass fiber composites
    103-108
    Views:
    176

    Rotational molding is a manufacturing technique for producing 3D hollow parts by adding plastic powder to a shell-like mold and rotating the mold while heating it with the powder. In contrary to the injection molding all the process operates at atmospheric pressure which makes reinforcement of the rotomolded product difficult. In this paper plasma treated PE and short glass fibers were dry mixed and used to produce composites by rotational molding process and characterized in terms of morphology and mechanical properties.

  • Food Industry 4.0 Readiness in Hungary
    1-12
    Views:
    306

    In 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.

  • Creativity and Innovation to Improve Processes in a Textile Industry
    80-96
    Views:
    179

    In this scientific work, the My Creative Idea (MIC) program was created and developed in the Coteminas S.A. textile industry, distributed among the organization's units in the country with emphasis on the São Gonçalo do Amarante unit in the state of Rio Grande do Norte. The aim was to critically analyze the improvements of industrial-scale processes resulting from the creativity and innovation intrinsically incorporated and experienced daily in the program. Thus, the general objective of the work was to evaluate the improvements in the productive processes coming from an innovation program in a textile industry, considering as specific propositions with respect to calculating the gains with reduction of losses, cost of implementation of ideas and measure financial returns and evaluate employee satisfaction according to the program. Moreover, there was free access in the company to be able to collect valuable information that could formalize a robust database for later structuring of the document, as well as the application of action research in the form of questionnaires. Therefore, the results verified clarified and emphasized the program's aggregating character to the organization in a general way under aspects that approach the financial spheres, the quality, and the satisfaction and motivation of the employees involved in this whole scenario. I suggest continuing to work on a continuous improvement methodology to further enhance My Creative Idea over the years, as well as insert this method of work to units that have not incorporated this program into their business strategies.

  • Laboratory Testing of Rediffusion of Contaminants Using DKS-Permeameter
    41-48
    Views:
    145

    Decades long hydrocarbon contaminations effecting heterogenous groundwater systems is a common problem both in Hungary and worldwide. Only the treatment of aquifer layers is possible with remediation technologies, so the contaminations remained in the aquitards are released back to the treated porous layer  after the treatment due to the changes in concentration-gradient. This process is the so-called back-diffusion: as a result, the previously removed contaminations appear in the remediated layer again. In order to get better understanding of the rediffusion process and the influencing parameters series of measurements were carried out at the University of Miskolc Faculty of Earth Science and Engineering using a special laboratory device called DKS-permeameter. With the help of some small modifications it can be used for the modeling of backdiffusion. Artificially contaminated soil samples were built in the DKS-permeameter from which contaminanant release occured due to back-diffusion. The concentration values were determined with spectrophotometric measurements.

  • Requirements for Multicultural Competencies Defined by a Focus Group
    44-56
    Views:
    217

    Globalization, 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?

  • Impact of Physical Properties of Workpiece Material on Material Removal Rate at EDM
    230-237
    Views:
    133

    The volume stock removal from the workpiece during the EDM is one of the important parameters that characterize the productivity of the electro-erosion process itself. Therefore, in terms of the economic efficiency of the electro-erosion process, it is appropriate that the value of the MRR parameter is as high as possible. The paper describes the results of experimental research to identify the extent of influence of the physical properties of the workpiece material on the workpiece material removal rate at EDM. The experiments were carried out using an Aggregron Hyperspark 3 electro-erosion machine on selected tool steels. As a tool electrode material for experimental purposes, graphite with the designation EX-60 was chosen because of its practical advantages.

  • Development Lies in Corporate Processes
    358-369
    Views:
    254

    Nowadays, our rapidly evolving world is characterized by constant change. Organizations need to be prepared and responsive to these systematic changes to compete in the marketplace. Today nothing is constant or predictable because the organization is driven by the "3 C" force (customers, competition, change). Rapid adaptation to ever-changing circumstances requires companies to move from structured organizations based on traditional functions to process-based management. By using state-of-the-art process management procedures, organizations can be made transparent, analysable, measurable, and continually improving, and help companies increase their performance and organizational flexibility, and reduce costs. It also helps to recognize when it is necessary to change a process for an effect. In the event of creating well-organized processes, companies are more responsive to changes in the market, allowing them to operate more efficiently, and to carry out development activities easier. Nowadays, development as a new framework focuses primarily on digitalisation, which is challenging for companies to adapt but without this, they would be left behind in the competition. These challenges require radical changes and transformations in the lives of many organizations, which are difficult to achieve. With the development of  process-based enterprise management, not just multinational companies can improve their operation, but small and medium-sized enterprises can also move towards digitalization thus inducing development for not only their own but for the economy as a whole.

  • Applicability of Optimization Methods in the Design of Automotive Rubber Products
    358-363
    Views:
    154

    Size, shape or topology optimization are widely used to fulfil the requirements in the design process of rubber products. In many cases, the shape of the product is very complex and comes into contact with other components during operation. It is commonly subjected to large deformation for which the rubber shows strongly nonlinear behaviour. For this complex problem analytical solution is not available, thus finite element method could be used in which the analysis running is a time consuming process. The object of my research is to compare the efficiency and computational cost of different optimization algorithms. This article focuses on the applicability of various optimization methods in the field of automotive rubber goods. Direct search optimization and surrogate model optimization methods will be introduced.

  • Challenges and Benefits of Working in Teams – Interpersonal Interactions in Health Care
    11-19
    Views:
    306

    Teamwork has become the accepted way of doing one’s job. This is so true even profession’s that were considered an exception are shifting towards teamwork. Apart from the well-known benefits, there seems to be a downside of the enforcement of this work strategy. Conflicts, frictions, frustration in working groups can affect the dignity, psychological or physical integrity of team members, generally referred to as psychological harassment, workplace bullying or mobbing. The outcomes of the phenomenon are various negative organizational responses. Health care is somewhat lagging behind in this shift towards working in teams, but with increasing specialization greater coordination is needed between health care professionals. Above all, the patient wishes to be more involved in the health care process. Research suggests that patient involvement and working in teams have a positive impact on effectiveness and patient mortality, respectively. One of the challenges for health care is to include the patient in the teamwork process as an equal member of the group and at the same time overcome the drawbacks mentioned above, in a setting where a traditional, paternalistic approach is still present and the vulnerability of the patient (and his/her dignity) is evident.

  • Value Creation along a Production-Service Value Chain
    91-99
    Views:
    151

    Today’s products and services are so complicated and intertwined that their individual value creation is hard to determine. It is especially true when the products and services are necessary complements of each other and when they are affecting customer satisfaction for a long time. In the case of durable products needing professional installment service, the study of value creation poses many difficulties. Our research shows and emphasizes the process characteristic of value creation, and how the different steps (production, service, long-term use) should be looked at, and what further analyses can be done.

Database Logos