In many fields of industry frequency inverter drive is used to generate rotation when, due to a given technology or production process, modifying the speed of the engine is necessary. In this article we introduce a model built by us, through which we present the frequency inverter drive’s principles of utilization from different fields of industry and by using industrial automation devices. Through this model one can be familiarized with the 4 methods created by us that can be controlled through a complex yet easy to understand and user-friendly HMI
Many scientific fields deal with the topic of multiculturalism which is gradually becoming a characteristic of the 21th century. When we examine culturally mixed societies, we compare different expectations that come as results of different habits. A goal in architecture is to respond to these different expectations, to adapt to new situations. In our research we examine the city of Pécs and its university in order to create a design concept for a new multi-belief sacred space.
In this article we discuss the interior-point algorithm for the general complementarity problems (LCP) introduced by Tibor Illés, Marianna Nagy and Tamás Terlaky. Moreover, we present a various set of numerical results with the help of a code implemented in the C++ programming language. These results support the efficiency of the algorithm for both monotone and sufficient LCPs.
This study describes 5G, the latest wireless technology that is currently under development. It will ensure increased bandwidth as well as newer and higher quality antennas. 5G is actually about further developing 4G/LTE. Due to the rapidly growing number of network devices, the current LTE technology will soon be unsatisfactory in terms of quality of service (QoS), therefore a new concept is needed.
The solution to this problem depends on the quality and complexity of the antennas, as well as traffic management. The planned Fifth Generation Network focuses on these issues to provide more accessible, faster, and more reliable services. The new technology will offer a lot of opportunities for IoT compatible devices such as self-driving vehicles or those used in healthcare. In our opinion we will soon achieve a world of unlimited Internet access.
Proper management of the realization of the general and special training objectives of technical higher education makes it necessary to organize the curriculum and the educational process according to didactic, methodological aspects. Selection of curriculum elements with deductive and inductive approach and their horizontal and vertical arrangement are required. In addition, the curriculum concentration of a given subject, i.e. its connection to other subjects, must be taken into account. This article intends to add to this by raising some points.
In this research we will discuss the creation of the flower cart. It will be examined from an economical and environmental perspective. Additionally, the planning process regarding the carrying capacity and battery runtime will be explained. The cart is moved by three-phase electric motors which are controlled by Variable Frequency Drives (VFD). Electric power is supplied by the large battery pack. Overall, the purpose of this vehicle is to be able to participate in the carnival march while increasing the quality of the event.
Solutions based on Cisco firewall protection provide numerous possibilities for more efficient protection of the abundant quantity of data that is necessary for the operation of an educational institution. Firstly, data phishing can be complicated by the constitution of a virtual network. The IDPS-based access system enables the management center to identify a potential threat in a timely manner. Furthermore, the Cisco-type firewall of a new generation is able to verify the encrypted data in a way that avoids decoding and listening the communication itself. The AAA framework is also an imperative, as in case of a network, control of access is of the utmost importance.
The joining of tubular (hollow, sectioned) parts to each other or for rods, sheet-like pieces and occasionally for pipe segments, is often achieved by using technology that uses a pressure welding process. These processes use mostly electrical, thermochemical or mechanical energy, and the implementation is butt, stud or projection welding. Most the pressure welding processes are suitable for the joining of different quality materials. This article summarizes the possible process variations.
There is a strong relationship between groups of users who don’t use anti-virus and those who don’t backup their data, meaning that a similar proportion of users don't use either of these two means of protection. In case of users who lack knowledge in informatics there is an increase in the number of virus attacks; these users are more likely to not use anti-virus and neglect to back up their data. For digital systems, users who are – based on our classification – in a lower rank, represent increased risk based on the number of the occurred virus attacks. For every user group there is a need for continuous and repeated safety awareness training to reach and retain a high safety level/
Artificial intelligence is one of the most dynamically developing areas of science today. Although it is not yet an integral part of our lives to use artificial intelligence solutions, it can be seen in terms of development, that it will become available to everyone in the coming decades, and not be exclusive for the richest. An important part of artificial intelligence research are the so-called soft calculation methods, the most important of which are fuzzy logic, genetic algorithms and neural networks. In this article, the authors present a method of identifying certain traffic signs with the help of the neural network.