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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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A vállalati vagyon és a finanszírozás összefüggései a vagyonértékelés szempontrendszere szerint
69-79Views:202The availability for financial sources can be the key factor of competitiveness of enterprises. Under favourable conditions it can result in not only economic growth and conjunctural effects but indirectly it also has a positive influence on social level as well. In the first part of the article we make an overview on enterprise financing in both social and economic context and try to give an overall concept. In the second part we analyse the framework of financing, discuss the national and international specifications of financing, and finally, in the third part we analyse the background of enterprise financing based on the principles of asset appraisal.
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Examining Drone Logistics Solutions in Retail
48-61Views:156The possibilities of using drones in transportation will be determined by the capabilities of drone technology, legislation, various advocacy and trade unions, and the degree of general acceptance. Technology and infrastructure are given, customer habits and needs are favourable, and emissions generated by packets moving between two points are growing steadily. Despite these favourable conditions, the effects of drone use should be thoroughly reviewed. The environmental impacts of the project were analyzed by PEST analysis and the main influencing factors were studied using the Porter model. Concluding our results based on questionnaire surveys and feasibility examinations of fast food delivery, it can be said that a system based on drones can efficiently be operated and cost-effective using round trips, however, the legal issues and uncertainties that arise in the delivery of drone hippers remain a very significant hindering factor for a long time.
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Automation Capabilities for the Logistics Service of Jobshop Production System
210-221Views:425One of the most important subsystems of manufacturing is the logistics system for transporting materials between technological phase. It is integrated depending on the production structure. The special feature of highly flexible workshop system production is that the material handling system is typically separate and the movement needs occur independently of each other, so the flexibility of the material handling system is required to achieve the expected production goal. In practice, therefore, the organization and execution of material handling is to a considerable extent dependent on the human factor. The purpose of this research is to explore the potential for automation of material handling activities in this particular production environment.
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Possibilities of Improving Salt-Related Water Quality on a Hungarian River
13-22Views:152The purpose of the study was the assessment of the salt related quality of river Kösely and its tributaries and to determine with calculations whether it is feasible to achieve improvement of the demonstrated water quality by the means of dilution in the frame of a PhD study. Besides data collection a series of twenty-eight Electrical Conductivity (EC) measurement was carried out at eleven sites along the river system. The resulting EC values all year long on every reach of the river exceeded even the tolerable values specified as irrigation water quality criteria and water quality standards in the Water Framework Directive. In the paper, we introduce the results of the survey along with authority surveillance data series from earlier years. Investigations in the water using anthropogenic activities causing this special water quality problem were also carried out and the results – quantitative and qualitative aspects as well – are introduced here. Since the pollutant is a conservative material, the calculations were performed using the simple dilution equation which is based on the law of conservation of mass. The findings of the calculations were the identification of those reaches of the river system where adequate water quality can be achieved by dilution considering the limiting factor of water delivery capacity. Our conclusion is that under current conditions of water management and water using activities there is no way to meet quality requirements with dilution. This can be achieved only by prevention or reduction of salt load.
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Comparative Analysis of Collaborative Robots
1-16Views:167In our study, we provided a comparison of four robot arms used in industry to determine the most suitable model to adopt in university education. We investigated robot arms from the following manufacturers: ABB, Kuka, Universal Robots, and Techman Robot. The multi-criteria system was grounded on the important factor and experience. Following this, each aspect was ranked using the Analytical Hierarchy Process (AHP) method. In addition, the order among the four alternatives was established by using the Kesselring method. The present study describes a selection method for industrial robots in the academic area.
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Examining the Functioning of Organizations from the Aspects of Organizational Culture and Leadership
371-381Views:288Organizational culture and Leadership both have been under research for a long time, as they play a vital role in the performance of an organization. The organizational culture is the set of rules or acts as a guidebook of an organization for achieving the objectives while leadership defines these rules and implements them as well. Organizational culture is dependent to a great extent on the norms and values of the society or the country where it is located. Important for achieving the objectives of an organization, this factor plays a vital role while setting the organizational culture. Incorporating organizational culture and then sustaining it is done by the leaders. Leadership if does not play an effective role in regards to implementation of the organizational culture, can collapse the organizational structure. Leaders are required to develop the qualities according to the organizational culture and should be responsible to come forward to transform if necessary and implement the system. The organizational culture should fulfill the needs of the organization’s goals and the norms of the society. Both leadership and organizational culture are co-dependent on each other and should be understood together.
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Ethical Leadership, at the Beginning of a Research
188-195Views:294In this study I deal with the ethical leadership. I give an insight into the approaches of ethical leadership, give a literature review on the concept of ethical leadership, and introduce the measurement methods used in the most important empirical researches related to this topic. I also try to report on the first results of my research (I plan to describe features of Hungarian leaders based on a smaller sample). How does this relate to the challenges of Industry 4.0? I give the answer from the fact that, with the advent of these new technologies (which in themselves have ethical questions), among these new challenges, the focus of the manager's attention will continue to be partly on their employees. If they set an ethical example for their subordinates, they encourage their employees to act ethically, which gives the company a competitive edge in many ways, both in the product/service market and in the labor market too. So, with my study, I would like to draw the attention of executives and managers to the fact that new technologies and the human factor together bring new successes, and that one possible way of doing this is by consciously managing their company ethically and developing an ethical organizational culture.
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Mechanical Design and Finite element Analysis for Acetabular cup
23-35Views:110Hip 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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Conemporary Danish Architecture- Humanity and Rationality
6-10Views:126In my study I have examined the characteristics of contemporary Danish architecture and the way how they formed. In Denmark, there is strongly rooted social atmosphere. The architectural efforts strongly reflects the social problems every time, considering the environmental aspects. The regionalist methods appear in the architecture, because of this the different architectural styles appear specific way. Self-reflective and analytical way the Danish architects try to answer the contemporary issues, even more emphasize the human factor.
