The aim of the paper is to present a case study and to point out the possibilities of using computer simulation for the purpose of increasing the efficiency and efficiency of custom production of a ...company. The use of simulation modeling as a scientific method in research and in practice brings benefits such as financial, time, material and energy savings, as well as streamlining activities in real practice. The development of advanced simulation systems has opened up new possibilities and significantly supported the trend of streamlining production activities, thus reducing costs and improving business performance. Simulation, however, is not a tool for obtaining an optimal solution, but rather a tool that allows you to test different decision outputs on a simulation model. Such a simulation model makes it possible to carry out various experiments to evaluate, analyse and determine solution parameters that can then be used in a real system. Risk factors can be investigated and determined beforehand by ‘replacing’ the running simulation model while monitoring system performance and behaviour, then, after applying the required changes, the future behaviour of the system is examined for any potential problems and obstacles. Can be removed in advance. The goal is to analyse the material flow in the production process and then create a simulation to determine the length of production and identify bottlenecks in the production process. In order to get a better idea of the production process, a simulation model was developed in the selected software tool as a custom production project under the conditions of a particular company. The incentive to start production is given to the customer, where every order placed is immediately sent to the customer. The highest frequency order in the enterprise’s production program is used to create the material flow.
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This presented paper focuses on the design and evaluation of the concept of concentrated solar heaters for segmental heat accumulators, which are designed to cover the energy needs of selected ...communities in terms of food preparation without the need for fossil fuels, which have a negative impact not only on the climate but especially on health. The proposed device is based on the traditional method of food preparation in the so-called earth oven; however, the fire-heated stones are replaced with heat accumulators heated by solar radiation. This approach eliminates the need to change common and long-term habits of food preparation for selected communities. The device connects solar vacuum heat pipes, a solar radiation concentrator, and heat accumulators. The concept was evaluated based on computational fluid dynamics (CFD) analysis with the use of a transient simulation of selected operating situations in three geographical locations. The results showed a significant temperature increase of the heat accumulators, where in the most effective case the temperature increased up to 227.23 °C. The concept was also evaluated based on a calorimetric analysis of the system consisting of heat accumulators and food. The resulting temperature in the considered case reached the pasteurization temperature necessary for safe and healthy food preparation.
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Globalization includes transnational political, economic and cultural ideologies and values. Globalization has a significant impact on education as new positions can enter higher education and study ...abroad. The influx of foreign students in Slovakia increased significantly. Therefore, successful interaction with the school environment and constant adaptation to the country are crucial for all students. However, many students face challenges when they attend higher education outside their home countries. The article shows that various investigators have carried out a large number of studies on the factors that affect students’ ability to adapt to different global challenges. The article provides some results of students’ adaptation effects during the first year of the Technical University in Košice. in the Daily Life section, we recorded statistically significant results between groups (Ukrainian students and other foreign students). Globalization includes transnational political, economic and cultural ideologies and values. The findings of the research questionnaire have important meaning for educators to help students in their efforts to succeed in a period of globalization and in adaptation in real educational practice. The university must be prepared to meet students not only academically, but also socially and culturally.
Economic development and its determinants, esp. trust or innovation are subjects of several scientific studies. Several authors claim the importance of innovation for economic development. Some ...studies identified that one of the most crucial factor for economic growth and prosperity is the trust between people. Within the research in this paper we have tried to identify the role of interpersonal trust within the innovation vs. prosperity relation. For this purpose and for causality analysis, we have applied decision tree models. Through our analysis of country based data (involved in trust related WVS surveys) in opposition to current studies, we have identified, that interpersonal trust is more significant determinant of innovation development as prosperity.
In 1987, Slovakia bought part of the ocean bottom with the occurrence of mineral resources future - polymetallic nodules. The polymetallic nodule is a geological term for naming natural features ...consisting of more than 40 metals and other chemical elements. These special services originated in the ocean for two to three million years and nowadays, they are of main interest for countries whose mineral wealth is little or no available. Nodules contain about 30 % manganese, 1.2 % copper, 1.2 % nickel, 0.2 % cobalt, rare earth elements, etc. The existence of submarine nodules was found by the British ship HMS "Challenger" by oceanographic research in 1872 - 1876. Research and the subsequent mining of nodules were particularly points of interest for Western countries as well as the USSR. Rules for the use of mineral resources of the seabed beyond the limits of national jurisdiction were codified in the Convention on the Law of 1982, which came into force on 16.11.1994, and in the Slovakia on 21.7.1996. The seabed is one of the international space next to the high seas, Antarctica, outer space and celestial bodies, which are not subject to the sovereignty of any state authority.
This study examines relationships between progress in the energy and mining industry and competitiveness of selected countries. The focus of the study was determined by reviewing the expert ...literature on the topic, which showed that not many approaches appreciate the correlations between these two areas and pay closer attention to their historical relations. The study works with historical data on the energy and mining industry in selected countries and also data on the competitiveness of those countries. Correlations were examined using bivariate correlation analysis of respective time series. This research identified historically strong correlations, for instance, between electric power consumption, land area, or forest rent and indicators of national competitiveness. The results show that the influence of energy and mining industry on competitiveness over the last 40 years has increased, particularly in the case of countries with low or medium economic development, and it has decreased in developed countries. The resulting information about the intensity of the mutual relations might be useful for management of competitiveness and planning of strategic economic tools.
As suggested by its title: “The Implementation of Knowledge-Intensive Services in Drawing Out and Bottling of Natural Mineral Water, the objective of the paper is seen in describing theoretical basis ...of implementing knowledge-intensive services in the environment of Slovak enterprises and, based on the example of a specific production company, to demonstrate the possibility of using such services when resolving partial practical issues as well. Specific features of the nowadays provided services: of non-material nature – services are not represented by commodities but by activities; a new trend of services providing – rendered services are often associated with products from other branches of industry; intertwining of a variety of both material and immaterial services being rendered; strong linkage of the service produced to a specific place and time of providing; non-warehousing of the service for future use; simultaneous service-producing and consuming – accommodation providing and restaurant operating services, possibly also relaxation, wellness, health resort and related services.
The question of electromobility is greatly discussed theme of the present especially in connection with the reduction of greenhouse gas emissions. In order to fulfill decarbonization targets, ...incentives of many countries lead to the support of electromobility. In this paper we ask to which extend are Visegrád Group countries prepared for the widespread utilization of electric cars and define a new coefficient K called the infrastructural country electromobility coefficient. Its computing is covered by appropriate analysis and calculations done previously. Several indices that keep particular information about the state of preparation for electromobility are defined and debated here, as well. Their product forms the coefficient K. Obtained results include outcomes and discussion regarding the level of infrastructural electromobility preparedness for the chosen states, among which we extra focus on the position of Slovakia compared to the European Union average and European electromobility leaders. Based on the data obtained, we found out that the stage of preparation of Slovakia for electromobility among Visegrad Group countries is rather good, although it is far behind the European Union leaders. We realized that there was a rapid growth of electromobility infrastructure in Slovak Republic in the last five years as its infrastructural country electromobility coefficient grew 334 times.
COSTS OF MUNICIPAL WASTE IN SLOVAK REPUBLIC Bosák, Martin; Tarča, Alexander; Dugas, Jaroslav ...
International Multidisciplinary Scientific GeoConference : SGEM,
01/2018, Volume:
18, Issue:
5.3
Conference Proceeding
The volume of generated municipal waste increases proportionally with the rise in population and higher personal consumption by individuals. Municipal waste management requires considerable financial ...resources and, because all of us generate waste, we all have to contribute our share. In the Slovak Republic, the fees for municipal waste are laid down by Act No. 582/2004 Coll. on local taxes and local fees for municipal waste and minor construction waste. Pursuant to this Act, municipalities issue their generally binding regulations on local taxes and local fees for municipal waste and minor construction waste in which they determine their fees for municipal waste and minor construction waste. The fee may also include the costs of waste containers for mixed municipal waste. Based on the results of a multi-year research undertaken by the authors, the average fee for municipal waste and minor construction waste is gradually increasing as we move from the eastern Slovak districts towards the west. At the same time, the fee amount not only depends on whether it is paid in a municipality or in a city, its population count or the company which collects the waste, but also on the region in which the municipality is situated. Based on the obtained results the formula for the calculation of municipal waste costs was created, i.e. through the process control it is possible to influence the costs of waste management.
Within the context of expansive technological development, the wealth of European society is growing steadily. This has resulted in producing more and more waste. Every year people in the European ...Union throw away about 3 billion tons of waste. Therefore, the EU must give due attention to this problem. This contribution was created within the Leonardo da Vinci international project Wastre for which the Faculty of Mechanical Engineering is a coordinator. The aim of the contribution is to present a current situation of waste legislation system and waste management of the EU and Slovak Republic. There is also discussed the waste recovery in Slovak Republic with stated examples of best practises in waste recovery.
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