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Analysis of Disinfection Technologies that can Increase the Efficiency of Indoor Logistics Processes, which has been Reduced due to the COVID Pandemic
62-71Views:130As a result of the Coronavirus, both supply chain and internal logistics processes at factories have changed a lot. In many areas, the effectiveness of the logistics processes has declined because of the restrictions implemented against the virus. The study lists some adverse effects where logistics processes had to be modified due to the changing and protection measures against or negative effects of the virus. The authors also argue that these restrictions decreased the efficiency of logistics processes and workers' productivity. One option to increase the logistics sector's efficiency is to use air purification technologies, like the ones studied in this paper: UV-C, Bioxygen® or plasma-ion decontamination technologies. These disinfection processes can create a safe indoor environment. The authors analyse the examined technologies with SWOT analysis. The analysis results demonstrate which disinfection application is the most beneficial to help in improving indoor air quality for logistics processes.
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Investigation of application and development of precision irrigation technology
239-248Views:214Due to the extreme weather conditions irrigation is nowadays considered an increasingly necessary factor. After evaluating the water requirements of the plant and the available water resources is necessary to decide what irrigation method to use. One of the most commonly used methods in field conditions is rain-type irrigation, of which there are several types (eg linear, winding drum). The uniformity of the field nozzles can be characterized by the Christiansen uniformity factor (CU%) and the distribution uniformity factor (DU%). The coefficients can be derived from the volume of water captured by the rain gauges. Our investigations were carried out in July and August 2019 at the University of Debrecen's Vision Plant Experimental Plant and at a linear irrigation equipment of a Nyírbátor company. The aim of the study was to compare the uniformity of water dispersion applied by conventional linear technology and precision linear irrigation technology. In addition we examined the intercept values of maize.
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Food Industry 4.0 Readiness in Hungary
1-12Views:263In 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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The Mechanical Properties of 3D Printed CuZn28 Brass Specimens with Different Orientations
253-259Views:204In this paper, the properties of CuZn28 brass raw material were presented. The 3D printed metal specimens are made from this material with different orientations. Their mechanical properties (tensile strength, yield strength) and elongation were investigated according to MSZ EN 6892-1: 2012 standard. The strength of the different printing directions is analyzed and it is determined which printing direction is the most favourable. Finally, the effect of the different printing directions upon the structure of the material is studied.
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Wind Energy Harnessing Options at Buildings
51-58Views:92Our goal was to develop a wind turbine system which could be applied in urban areas where the wind power has low potential, such as the cities in the “Alföld” region. The proposed system is able to harness more wind power at lower wind velocity than the commonly used ones, by using advantageo us properties of the flow in tunnels.
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Review on Construction Procedures of Driving Cycles
266-285Views:263The goal of this paper is to give an overview of the literature of construction techniques of driving cycles. Our motivation for the overview is the future goal of constructing our own driving cycles for various types of vehicles and routes. This activity is part of a larger project focusing on determination of fuel and energy consumption by dynamic simulation of vehicles. Accordingly, the papers dealing with sample route determination, data collection and processing, driving cycle construction procedures, statistical evaluation of data are in our focus.
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The Special Aspects of Leasing as Long-Term Asset Financing Method in Hungary
115-128Views:565Leasing has become widespread in the world in the 1970s, while in Hungary the first leasing firms appeared in the 1990s. The authors in this article introduce the most prevailing and most often used forms of leasing and their main characteristics in Hungary. Based on the statistical data of the 2008-2015 period the authors analyse the performance of investments, the volume of trade in the total leasing market and the course of the amount of capital assets and new capital investments on the level of the national economy. The conclusion of the current article is that the changes of the investment’s performance in the national economy and the EU development funds influence greatly the course of the Hungarian leasing market.
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On the Torsional Rigidity of Orthotropic Beams with Rectangular Cross Section
25-30Views:61The paper deals with the torsional rigidity of homogenous and orthotropic beam with rectangular cross
section. The torsional rigidity of the considered beam is defined in the framework of the Saint-Venant theory of
uniform torsion. Exact and approximate solutions are given to the determination of the torsional rigidity. The shape
of cross section is determined which gives maximum value of the torsional rigidity for a given cross-sectional area.
The dependence of torsional rigidity as a function of the ratio shear moduli of beam is also studied. -
The significance of analysing potential conflicts in the sales-marketing integration
41-59Views:105Our research aims to identify the critical interfaces between sales and marketing that need to be improved in order to ensure productive cooperation. The relationship between the two departments is full of conflicts and interdependencies. The improvement of communication is of strategical importance, as it is key to staying competitive in the market. The effectiveness and quality of the sales-marketing cooperation is a key factor that is negatively affected by personal and organisational factors as well as a lack of information and conflicts. In addition to the key factors of managing the sales-marketing interfaces, we have also identified the actions that can promote their improvement, including strategic and organisational roles and responsibilities. Our empirical research results show that regular information exchange, more common and interdisciplinary meetings, and a clearly communicated and implemented corporate vision have a positive effect on the coordination and integration of the sales and marketing departments. Consequently, management is reponsible for establishing a corporate vision, i.e. a comprehensive management culture that is clearly communicated across the board in order to increase the employees’ sense of belonging. Of all elements of management culture, the most important factors are coordination and the establishment of a common strategic sysyem. All in all, corporate profit, which is of key importance to the employer, is largely dependent on the successful integration of the sales and marketing departments, which can be achieved through the implementation of the above factors.
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Evolution of Lean Management and the Organizational Learning
251-259Views:581In industry, service and public sector lean approach is gaining ground. However, there is a significant difference between the organizations applying lean concept in case of their lean transformation maturity level as well as their lessons learned. There is a huge variety of methods and techniques which can be used but there are two conditions in case of every organization regardless their sector or their lean maturity level which determine the success of their lean development: lean approach leader and learning organization. Lean leadership is not based on a particular sector or method and a ready-made lean organization is not needed either. The concept of the top management has a huge effect on the characteristics of theorganization but whether the will of the management is enough for the complete transformation or not is the question. Is the target the lean organization itself or how a unit of an organization or the whole organization can react to the change of the environment? The attitudes and behaviors of lean approach leadership can be applied every day, everywhere and support the aim of creating a real lean organization.
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Customer and Supplier Relationships and Their Characteristic in the Automotive
1-12Views:262This article gives short review with the help of specialized literature that was written both national and overseas.This gives information about whatrelationships can you speak in the automotive.This study briefly presents what are the forms which are preferred by the companies, they are more general and what distinctive characteristics do the forms of contact have. Essential question of the customer-supplier relationships is the following – how does the customer company treat its supplier as a partner. The supplier relationship is very precious if we are not talking only about easy product-delivery but a positive relationship can be developed between the two sides. The aim of this study is a literature review which has summarized the theoretical ground of this subject, so that means a kind of a starting point in the practice.
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Review of Modern Vehicle Powertrains and Their Modelling and Simulation in MATLAB/Simulink
232-250Views:984Thanks to technological advances and environmental standards, as well as changing usage patterns, road vehicles are constantly developing. Electric and hybrid vehicles are playing an increasingly important role in today’s road transport. The most significant changes are probably in the powertrain of vehicles. The efficiency of internal combustion engines increases while their emissions continue to decline. In addition, high performance electric motors, batteries and even fuel cells play an increasingly important role in hybrid and electric vehicles. In this publication, we review the drive systems of current modern vehicles and the types and characteristics of their major components. We also review the available models and computer programs for their simulation, focusing mainly on MATLAB/Simulink applications. Based on this, we can develop our own models and simulation programs which will help us to perform different driving dynamics simulations and to compare the performance, dynamic and energetic characteristics of these powertrains and their components to each other.
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Tips and Tricks for Making Examination in Moodle
123-131Views:131Electronic exams made with the Moodle system can greatly facilitate the examiners job, but only few people use this option. This paper will review the examination system of the Moodle, the uploading of the question bank, the creating of the test, and the range of the available statistics. Then answers some frequently asked questions and misunderstandings, and give tips and show tricks related to secure examinations.
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Numerical Modelling and Simulation of Sheet Metal Forming Process
1-6.Views:116Simulation and modelling of sheet metal forming process are well common today in different industries (automotive, aerospace) and several research centers regarding its huge impact for both on production and reliability of the lifecycle of the equipment, and the quality of the product. However, to obtain the best configuration possible with the inputs parameters to achieve high level of production and increasing the durability of the tools needs some extra methods for the optimization for this problem using mostly finite element method cooperated with iterative algorithms based on Artificial Neural Network (ANN) [1]. Whereas this research is focused on modelling of stamping process of stainless steel AISI 304 to investigate to formability of the material, and studying the influence of the friction factor on the quality of the product as well the energy required for each set configuration.
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Dynamic Tests on a Series Wound DC Motor. Simulation of the Braking of the Vehicle Driven by the Motor
15-20Views:72In the following we present the role and contribution of vehicle dynamics simulation to vehicle development in the University of Debrecen Faculty of Engineering. We present the input technical parameters which are necessary for the simulation of the series wound DC motor – which drives the vehicle – and also the procedure for their measurement together with the results of dynamic test measurements on the motor. The latest version of our vehicle dynamics simulation program –which is capable of the simulation of braking too – is also presented here.
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Algorithmization in Playful Way
105-111Views:76In 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.
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PDCA – How does the Organization Learn?
1-9Views:395An organisation (whether it is in the private or in the public sector)knows where it is headed, it has a vision. To achieve this vision the organisation can have a strategy beforehand or the vision can be the result of a continuously improving strategy.The strategy can be developed according to the earlier routines or in a totally new way. Many times failures help to find a solution better than the chain of successes. The lessons learned should inevitably be part of the following cycles otherwise the same issues rise again and again which finally ends in exasperation and giving up. When we create a learning process it is easier to focus on avoiding the obstacles than motivation. PDCA is a well-known method for it but what prevents us from applying it the proper way? What are the obstacles that prevent the organisation from developing through its learning processes?
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Neutral Inhomogeneity in Circular Cylinder Subjected to Axial Load on its Lateral Boundary
35-42Views:132In this paper we consider the problem of single circular elastic inhomogeneity embedded within a circular cylinder whose curved boundary surface is subjected to surface traction acting on axial direction. We investigate the displacement neutrality of the coupled system of host body and inclusion. Neutral inhomogeneity (inclusion) does not disturb the displacement, strain and stress fields in the host body. The deformation of the considered inhomogenneous cylinder is antiplane shear deformation.
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Enclosed Garden
25-33Views:140The archetype of the enclosed garden is the medieval hortus conclusus, which make the perfect type from the former types. The enclosed gardens of nowadays have developed from the hortus conclusus, which behave like a prism. Peter Zumthor's Serpentine Gallery Pavilion is the best example for the contemporary hortus conclusus. The purpose of our study to make a typological collection about contemporary enclosed gardens. The base of the typology is the borderline of the garden, the wall of the garden. We based the study of borderline to Dom Hans van der Laan's architectural theory and his monastery building in Vaals. We analyze the typology by six contemporary enclosed gardens from the simple wall to the building volume through the volumes of the wall. The openings of the walls can be the next way of our analysis.
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Torsion of Truncated Hollow Spherical Elastic Body
234-240Views:116This paper deals with the torsion of a body of rotation whose shape is a truncated hollow sphere. The material of the truncated hollow sphere is isotropic, homogeneous and linearly elastic. To solve the torsion problem, the theory of torsion of shafts of varying circular cross section is used, which is introduced by Michell and Föppl. Analytical solution is given for the shearing stresses and displacements. A numerical example illustrates the application of the presented solution. The results of the presented numerical example can be used as a benchmark problem to verify the accuracy of the results computed by finite element simulations.
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Development Opportunities of Health, Wellness and Sports Services in Medical Tourism Based on a Research Study
101-114Views:264The quality and quantity of additional services play an increasing role in the competitiveness of service providers in the tourism sector. In our research, our goal was to explore the service development possibilites of two different sites of a Northern Hungarian healthcare institution in the framework of a market research. In the field of services, we focused on different issues of health, wellness and sports services. Our research has shown that the availability of additional services and therapeutic recreational, sport or wellness services are important for patients as they can positively influence their quality of life and health status.
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Pure Bending of Homogenous Isotropic Elastic Curved Beam
67-75Views:39In this paper a detailed analysis is given for the pure bending problem of curved beams. The material of the curved beam is homogenous isotropic linearly elastic. The mantle of the curved beam is stress free and there is no body force on the curved beam. The plane of the curvature of the beam is the plane of symmetry for the whole beam. Paper gives the expressions of circumferential and radial normal stresses. A strength of material approach is used to derive the governing equations. A numerical example illustrates the application of the presented solutions.
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Review of Drive Systems Applied in Modern Vehicles
728-732Views:142In 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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Wind Tunnel Making in Practise
19-24Views:90In this paper, we examined the low speed wind-tunnels. Our goal is to construct an open flow system windtunnel that can be utilized in our measurements. To make such a wind-tunnel we needed to build a prototype and calibrated with the help of measurements. Than we determined the flow at the area of measurement. Finally results of the measurements satisfied our expectations. Although there is still much more in development that we would like to do based on the newly gained experience.
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An Analytical Solution for Static Problems of Cantilever Curved Beams with Variable Cross Sections
226-233Views:118This paper gives an analytical method to obtain the deformation of a cantilever curved beam. The curved beam considered has circular centre line and the thickness of the cross section in radial direction depends on the circumferential coordinate. The kinematics of the Euler-Bernoulli beam model is used to formulate of governing equations. The curved homogeneous and isotropic elastic beam is fixed at the one of the end cross section and on the other end cross section is subjected to concentrated forces and a couple. A numerical example illustrates the applications of the derived formulae.
