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Topology Optimization of Acetabular Cup by Finite Element Simulation
22-34Views:417Hip replacements typically consist of a four-part piece. Our research will focus primarily on the acetabular component. Several different types of materials can be used when creating a hip replacement implant ranging from plastic to titanium. Different materials are used to accommodate for allergic reactions or circumventing potential health risks. Aside from the material, the size of the components plays a factor in terms of durability; a larger diameter head might avoid dislodgement though it could increase wear and tear on the stems through constant friction. A patient’s force applied to the hip replacement is usually measured through a number of physical assessments. Finite element analysis (FEA), a computer-based method of data observation, allows for us to accurately simulate hip forces and their impact on the hip replacements. Through this, it becomes easier to predict and calculate the performance of specific designs. Generative systems can also be used to support performance analysis and optimization through assessing a multitude of cases, many of which apply in real-world scenarios. By applying both systems, we designed and modeled an acetabular cup that when measured decreased the mass from 129 grams initially down to 52 grams, a 60% decrease in total mass. Furthermore, the design we created lessened the trauma on the piece through distributing force across the entirety of the piece rather than specific segments only. This shows an increased durability and life expectancy when compared to usual acetabular cups.
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Efficiency Analysis of Production Management System
401-415Views:206Due 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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Latest Trends and New Tools Being Used in Strategic Management
73-85Views:689In today’s rapidly changing world, there is an increased need for excellent strategic planning. A firm’s survival may indeed hinge on the firm’s planning process being exemplary. Various aspects of the strategic planning process are under review today as organizations wrestle to compete more effectively in an ever-changing world. This paper reveals and describes five new trends or tools being utilized today by firms to more effectively engage in strategic planning. Specifically, the new trends and tools to be discussed in this paper are as follows: increased need to follow a strategic planning model; increased need to develop quality vision and mission statements; a new improved method for incorporating SWOT analysis into practice. Utilizing two matrices one internal and one external to provide a less biased way to access the current strategy fit with conditions facing the firm. Explain the use of a decision matrix commonly called the QSPM (Quantitative Strategic Planning Matrix) for assessing the relative attractiveness of various strategies being considered for implementation. The purpose of this paper is to familiarize readers with basic new tools and techniques being used by organizations to effectively develop an improved strategic plan for the firm.
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Visual Analysis and Geometric Modeling of Metal Foams
89-92Views:101The development of an efficient procedure for 3D modelling and finite element simulation of metal foams
is one of the greatest challenges to engineer researchers nowadays. Creating 3D CAD model is alone a demanding
engineering task due to its extremely complex geometry, and the proper finite element analysis process is still in the
center of the research. The aim of this project is to analyze the related literature and to adapt the results may be
considered. -
Justification for the Olympic Reform Package Based on Good Practice
Views:236The Olympic Games have always been the pinnacle of sport and achievement. The modern Olympics are held every four years, and the venue is chosen from among the cities that apply. In my research, I wanted to find out the reasons for the decline in the popularity of the Games. To answer this question, I looked at 2 successful Olympics (2000 Sydney, 2012 London) in the hope of identifying success factors that could be adapted to other host countries. I conducted secondary research, reviewed related international and national research, and the available economic data. During the document analysis, I found that the expected costs of organising the Olympic have increased significantly over the last two to three decades, and under-planning is a common feature. As a result of the research, I have found that the most important pillars of successful organisation are a proper organising committee, comprehensive opportunity and risk analysis, accurate planning, sustainability in planning, continuous cost control, private sector support, and the work of volunteers.
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Frequency Domain Analysis of Tractor Tyre Enveloping Properties
223-229Views:77Main source of vibration excitation for off-road vehicles are ground profile undulations. Most unprepared terrains are characterized by wavelength of unevenness that is of the order of magnitude of the contact length between tire and ground, so that, due to its shape and elasticity, tire actually behaves as geometric low-pass filter transforming real road profile geometry into effective vehicle vibration excitation. Since this effective profile represents real vehicle excitation, it is of interest to study this filtering behaviour in more depth. In this work, investigation of this kind of tire response has been studied for agricultural tractor tire rolling quasistatically over singular road obstacle. Frequency analysis of road excitation and tyre response was carried out in order to obtain their spectra and frequency response function magnitude of the tyre as filter was obtained by dividing input by output spectra. Final assessment of frequency response function magnitude was obtained by averaging instances obtained for different dimensions of input obstacles.
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Practice of Organizational Development in a Domestic Company
117-126Views:974In today's changing world, it is extremely important that organizations can keep up with market trends. The perspectives of continuous development are expanding and the commitment of decision-makers to development activities is growing steadily. The starting point for organizational development is always man. Organizational development always begins with deeper research and modeling. Fundamental guidelines are set out as a paradigm of development. The most important and at the same time the most difficult step is to introduce the results of the analysis. The most effective, but the most time-consuming and cost-effective solution is full organizational development. The management of the organization faces significant efforts to embark on a full organizational development process. The aim of our study is to propose different development opportunities for the company's management with the help of analysis by the organization and supported by measurable data, as well as the catalyst for the modifying efforts observed among employees.
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A Wounded Soldier Fighting on two Fronts: Civil Society Organizations Initiatives Struggling to Overcome the Pandemic Crisis by Practical Protective Means, Volunteerism, Reporting and Awareness Campaign Discourse
136-151Views:149Given the fact that the covid-19 pandemic virus has had a pervasive impact on almost every sphere of life globally, it is noteworthy to highlight the role and position of the civil society sector, and this paper intends to do so by striking at two matters. Initially, outlining the impact on the functioning and activities of Civil Society Organizations (CSOs), to then proceed with their response to the crisis, through new multifarious initiatives/activities. The analysis was developed by using, essentially, unobtrusive data and direct non-participatory observations of Non-Governmental Organizations (NGOs) in Kosovo that have had initiatives against covid-19. Although CSOs were badly affected by the pandemic as such, and the consequences it brought, whether, through measures and/or neglect from the central level, they still found the resources and willingness to launch initiatives to combat the pandemic in the form or different. All over the country, appeared organizations which among their activities found a place for awareness campaigns, material and financial assistance to citizens in need, production of masks, face shields, and other protective equipment for citizens or health institutions, and providing voluntary assistance as health staff. To link practice with theory, there are presented cases of NGOs that well reflect scholarship ideas such as the need to have a classification of CSOs based on activities, the importance of their IT repertoires, coproduction, and especially the response to the crisis. The importance of this study grounds on the benefit it brings to understanding the role and contribution of CSOs in exceptional times of crisis, especially for a society that underestimates and neglects this sector.
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„Forradalmi” változások a menedzsment területén
1-15Views:144Development of the Science and practical application of the results created big changes in the nontradicional areas too. The „Health industry” was developed. The results of the physics, chemistry, biology and mikroelektronics etc. helped to develop some new methods of diagnosis, operation etc. The „money industry” was developed too. Our opinion is, that the most important cause of the economic crisis is a non regulated well of the „money industry”. The „knowledge industry” was developed too. The „knowledge industry” contains all level of teaching and Research + Development + Innovation. Our analyze shows that the Innovation is the most important factor of the economic Development of Society. The new scientific results created big changes in area of the Management. The „Management Science” was developed as an independent area. Some management specialists developed some management methods (eg. Value Analysis, Risk Management, TRIZ, Lean methods etc.) for efficient allocation of sources.
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Material Stock and Flow Analysis within the Agricultural Building Sector Based on Local Database
297-320Views:123The purpose of the paper is to analyze on micro level the stream of building materials needed for raising cattle. The scope of the produced material flow chart will cover the inflow and storage of the materials. The overall objective of material flow analysis is to contribute to the data inventory development process which is needed to use these construction materials as secondary raw materials in the future. The assessment is based on a concrete new development in a Hungarian region being carried out nowadays as a development and modernization of an existing cattle raising farm. Driven by the concern of resource depletion, further research on higher level, based on larger database will be needed to verify the estimated national level results for the magnitude of growth of anthropogenic stocks.
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Implementation of Lean management Practices in Azerbaijan (on the Example of a Private Company)
30-40Views:88Organizations 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.
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Analysis of Henbuk Startup Value Using a Scorecard Assessment Method
1-12Views:135This study aims to determine the valuation value of Henbuk's startup by conducting qualitative and quantitative analyses. Henbuk is a startup engaged in e-commerce. The Henbuk startup is currently in the initial funding stage, and the founders are opening opportunities for investors, which can later support operational and development activities. In obtaining funding from investors, the Henbuk startup requires an initial assessment of the company's value. The score assessment consists of several indicators, e.g., quality of the founder and team, opportunity size, product and technology, competition, marketing, sales and partnerships, and the need for additional investment. The results of the value assessment are obtained by using the Scorecard Assessment Method. The results of this study may help to determine the real value of other start-ups for the investors in the future.
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Project Risks and Risky Projects
164-189Views:308Projects are key drivers of organizational change, both their failure and success can have significant impact on the organizational performance. Risks may arise throughout the entire project life cycle. Managing these and initial project planning uncertainties is an important task of Project Management. The study describes the application of traditional project management tools and methods in risk analysis, -evaluation and -treatment based on modern project and risk management standards and recommendations. The authors also examine the link between classic project management objectives (project time - resources – scopes) and risk-based decision-making. The different scale and scope of projects call for different responses to the associated risks. The study highlights the possible role of the ISO 31000 risk management standard package in project risk management. The authors analyse the risk management of the different projects on the basis of processing relevant literature, including the relationship of the project stakeholders to the risks. R&D, agile projects and project portfolios have specific and complex risk exposures, but their project management can provide several „hidden” risk analysis and - treatment functions.
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Vocational Teacher Training –Modeling, Professional Vocabulary Development, Connecting Subjects
61-71Views:53Vocational Teacher Training Programmes provide teachers of Vocational Education and Training schools. University of Debrecen Faculty of Engineering offers Vocational Teacher Training in five specializations, in form of cooperative training. The company specialists participating in the training teach prospective vocational teachers with modern professional knowledge. The aim of this article is to summarize the pedagogical experiences of the prospective vocational teachers, based on the content analysis of their lesson plans. The investigation focuses on prospective vocational teachers’ examples of modeling, professional vocabulary development and connections between subjects from their practical pedagogical training in Vocational Education and Training schools.
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Reduction of Energy Use for Heating in Detached Houses using Passive Technics
64-76Views:126Reduction of energy use in buildings continue to be one of the most important goals in this sector. The aim of our research was to analyse the effects on the heating energy demand of passive technics. In the case of a detached house the energy savings using mass wall, Trombe-Michel wall and sunspace was determined. The calculations have been performed in the case of a building with average thermophysical characteristics and in the case of a building having similar geometry but its external building elements fulfilling the requirements of nearly zero energy buildings. It was proven, that some of the mentioned technics may lead to higher energy demand for heating, so a complex energy analysis has to be carried out before implementing them.
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Modeling the Thermal Behavior of Permanent Magnet Synchronous Motors
466-477Views:140The aim of this study is to present a thermal analysis of a permanent magnet synchronous machine based on finite element method. The developed model can be used to predict temperature distribution inside the studied motor during the rated operation. Electromagnetic computation is carried out with the aid of two 2D finite-element (FE) simulations on the cross-section of the PM motor. To analyse the process of heat transfer in an electrical machine, empirical correlations are used to describe the convective heat transfer from the different surfaces of the PM motor. The heat transfer coefficient is determined using dimensionless numbers and Nusselt number. After the loss calculation, the temperatures of the machine are calculated by using 3D finite element method. The results obtained by the model are compared with experimental results from testing the prototype electric motor.
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Analysing the Possible Connection Between Dark Triad Personality Traits and Ethical Attitudes of University Students
57-67Views:316In 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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Developing of Capacity Analysis Method
1-19Views:323Capacity planning is strategic significance in companies’ life. The strategic of capacity enlarging in fluencies the competitiveness of companies. There are several method for determination of long-term capacity from simple ones to expensive, high calculation requiring processes. We have to rearrange the production for the increasing demand, it is not so simple because it needs some investments. We must scrutinize that is it worth for us? The aim of this study is to investigate whether capacity enlarging is going to be realizable without investments only the eliminate of waste. In this method needs exact determine of the current capacity so we use modified, extended capacity model. In this model we consider the availability, quality and efficiency of the machine more over we observe the effect of the service program of the machine.
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Optimization and Analysis of Structure about Lifting Device of Logistics Sorting
425-431Views:158The lifting device of a logistics sorting machine needs high frequency upward and downward reciprocating motion therefore the cutting fork arms and matching parts of the shaft are often worn out. In this paper the problem of the shear fork types applied for the lifting mechanism is studied at first. Then the advanced numerical simulation software ANSYS adopted for the lifting mechanism of the shear fork type, and the means of virtual simulation is introduced. Hence the possible location of faults and fault modes are analysed. Then improving measures about the lifting mechanism of the logistics sorting machine are suggested.
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Sectoral Analysis of Hungarian Professional Football Clubs - Hungarian Football Money League 2014-2016
284-296Views:700Based on the model of the Deloitte Football Money League we recreated the „Hungarian Football Money League”, which gathers and analyses the most economically powerful Hungarian football enterprises. The model gave us an oppurtunity to analyse and compare the industry to the international level. With the hungarian professional football-enterprises we assume, the most economically powerful teams play in the NB. I. (National Championship). Because of this reason we only analysed NB 1. club teams. From the 12 participating team we selected only those 9 who stayed in the League for three consecutive years. The implications from this study is that the hungarian club teams stays well below the international level, altought top level enterprises' joint economical impact is indeed significant in the hungarian sportsector.
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Grounds of changemanagement
257-267Views:618Organisations of the 21st century exist in a permanent change. Change management in business management deals with the analysis of directed and planned changes. However, it does not consider spontaneous changes.Change has been addressed in social science since the 1970s and is of growing importance. As in many cases adapting to the change is crucial for the organisations to survive. With the changeThese spontaneous changes are chaotic processes that are carried out without control. In this paper I present the evolution of changemanagement, and the most important questions of changes.
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Labor Market Effects of Organizational Health Promotion
99-107Views:367Nowadays, we can observe an increasing trend in the spread of non-communicable diseases. It is important to highlight the social factors that negatively affect health. Determinants includes income, education and the research-relevant working and living conditions. From a labor market perspective, unemployment and poor working conditions are a significant responsibility for the deterioration of mental and physical health. Health is also affected by employment conditions. Extended working hours have been shown to be harmful to health. Poor health has generates poorer work performance, a higher rate of sick leave, and higher health care costs. My primary goals in my research was to explore the labor market impacts of workplace health promotion and guidelines for corporate health promotion. Within health promotion, physical activity has played a prominent role. I’ve been used secondary data collection during my research. I have been performed a traditional literature analysis based on domestic and international studies. My results are suggest that the workplace health promotion has more positive labor market effects than increasing productivity and reducing absenteeism and health care costs. It is important to mention that health promotion could bring benefits to both employers and employees. Regarding corporate guidelines, there is no new approach directive other than the older literature sources. thus, it may be worthwhile to develop a new and different corporate process for effective workplace health promotion.
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The role of the nonprofit economic companies in human resource management in Hungary
145-152Views:147In the changed labor market structure in the context of economic growth in Hungary, the reintegration of displaced and increasingly differentiated groups into the world of work has become an indispensable necessity, with alternative initiatives aimed at long-term profit maximization. Nonprofit economic companies replacing former public benefit companies not only determine the revenues of the whole nonprofit sector in their operations, their work goes beyond this, as most of them are engaged in socially marginalized, disadvantaged, or even disabled people, and can do other work to improve employability and employment. The aim of my study was to process the latest statistical database of the nonprofit sector issued by the KSH in order to determine the role of nonprofit economic companies in employment, by appying secondary analysis.
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Product Assembly Process Improvement of Agricultural Cultivator Trailers
59-62Views:82The aim of our paper is to increase production efficiency of a small and medium sized enterprise by
applying cost-effective process development tools. The existence of the firms depends on their business processes,
because optimally-organised process is a key in the run of business (business run) in a productive way. In order to
keep and grow the competitive edge with the competitions, firms must supervise their processes with constant
frequency, and if it is needed, procedures must be developed. In this case, company can resort to both human and
physical resources. Our experiment focused on the development of an assembly process at a small sized enterprise.
Applying process modelling techniques, and diagnostic procedures, and also data gathering methods we try to get to
define corrective actions, with which the whole lead time can be reduced by 50%. For investigate and rank waste we
use failure mode and effects analysis and 5 whys methods. -
Survey of the Application Fields and Modeling Methods of Automotive Vehicle Dynamics Models
196-209Views:201In this paper, a review is presented on automotive vehicle dynamics modeling. Applied vehicle dynamics models from various application fields are analyzed and classified in the first section. Vehicle dynamics models may be simplified because of different reasons: several control/estimation/analysis methods are suitable only for simplified models (e.g. using control-oriented models), or because of the computational cost. Detailed/truth models of vehicle dynamics represent another field of vehicle dynamics modeling, these models play an important role in the virtual prototyping of vehicles. In the second section, the main modeling considerations of vehicle dynamics are presented in longitudinal, lateral and vertical directions. Various physical effects must be considered in the case of vehicle dynamics modeling, a lot of these effects are significant only in a specific direction of the vehicle body, which is the main potential of model simplification. The section presents vehicle modeling considerations in all of the three translational directions of the vehicle body.
