National Repository of Grey Literature 2,010 records found  1 - 10nextend  jump to record: Search took 0.10 seconds. 

Current Control Techniques for Mains Connected Converters under Unbalanced Conditions
Bejvl, Martin ; Šimek, Petr ; Škramlík, Jiří ; Valouch, Viktor
Electric equipments connected to the mains usually consist of a converter, a DC intermediate circuit and an inverter. The power from the mains should be consumed with unity power factor, the mains current should be harmonics, the power flow bidirectional, and also equipment should be functional under distored mains conditions. The dual-current control of the converter has been recently developed to meet the mentioned requirements. An overview and comparison of several different control methods are presented in the paper.

The prohibition of gambling in Czech cities and their economic efficiency since 2010
Lišková, Magdaléna ; Skopeček, Jan (advisor) ; Zeman, Martin (referee)
The bachelor thesis is about an evaluation of economic efficiency of prohibition of gambling in selected Czech cities since 2010. The theoretical part contains a definition of basic terms, a chapter about social costs and it also deals with a prohibition and the shadow economy. The practical part contains chapters about current legislation, about gambling market in the Czech Republic, next chapter is about methodology and at the end of this part there is the evaluation of economic efficiency. This chapter deals with an explanation why we can call the prohibition inefficient. It is also a resume of the thesis which is back up an argument of progress of total social costs and total revenues. The bachelor thesis, in spite of other Czech papers, works with presumption that the social costs are produced by pathological gamblers and it deals just with the original social costs. That is the reason why the thesis provides an original quantification of the social costs and new view on problems which are connected with regulation of gambling.

Design of Landscape Management of Horní Počernice
Barešová, Terezie ; Syrovátka, Oldřich (advisor) ; Novotná, Eliška (referee)
This bachelor thesis deals with the assessment of the current landscape management in Horní Počernice and the design of ecological measures, which can be used as a basis for comprehensive land changes of Horní Počernice. The theoretical part defines basic terms of landscaping and landscape ecology. The practical part describes the selected area including processing of ecological characteristics. Ecological measures of landscape are designed to improve the quality of life in Horní Počernice. A research was made to investigate the attitude of residents to the scenic countryside in connection with the expansion of buildings at the expense of vegetation. The conclusion contains an evaluation of the research.

Economical aspects of health care services and risks connected with legalization of euthanasia
Stehlíková, Jana ; Kuba, Jaroslav (advisor) ; Matula, Miloš (referee)
The thesis deals with legalization of active euthanasia, its main impacts for the whole society, potential abuse and some basic concerns of specialist of various profession related to euthanasia. The thesis is focused on the medical, economic, legal and religious point of view of euthanasia and defines crucial approaches of the defenders and defendant of euthanasia. Special emphasis is on the attitude of doctors, whose opinions on legalization of active euthanasia vary. The thesis denies legalization of active euthanasia as a good solution for patients which are incurable ill or dying, calls attention to keeping the right to live in current form and disagrees with the economical argument that euthanasia is cheap and fast solution for complicated situation of the health service.

Case study on utilizing of heat from the nuclear power plant Dukovany in the district heating system
Kozel, David ; Drbošal, Jan (referee) ; Pospíšil, Jiří (advisor)
In this thesis, I was solved assessment of nuclear power plant Dukovany, conection to the hot water network to city Brno. For determine the size needful enforcement was necessary to establish the heat balance of needs of the city of Brno and the size of the heat supply options. After that it was possible to determine the dimensions of pipes and optimize his routes of due to the current state of land along the route of thermal power supply. Power supply parameters were chosen with regard to the possibilities of technology used for transmission of the media and the status quo for distribution of the city Brno. After pushing the power supply ahead of the city Brno into the pumping station Bosonohy, and second part of the solution was the connection to the backbone wiring SCZT heat to individual customers. The last point was elaborated design management system of heat from nuclear power plant and urban local based resources on current management of heat supply system using consumption diagrams SCZT.

Systém odměňování v malém IT podniku
Novotný, Lukáš ; Dvořáková, Zuzana (advisor) ; Cetkovský, Pavel (referee)
The topic of this thesis is reward management and its application in a small-sized IT enterprise. Its goals are to properly document and describe current reward system in the company, evaluate the system and recommend improvements for the system. The first two goals are reached via thorough research of the company through semi-structured interviews, employee satisfaction survey, participant observation and document examination and the last one by applying principles from the current literature and education to the results of the two previous goals. The findings are that the reward system, despite growing organically instead of designed, is relatively effective in some areas, but needs improvement in other areas. The main improvement areas are motivation by contingent pay, communication management and performance management. Relatively well working rewards are especially non-financial reward connected to the work environment and work itself.

Personal experiences of teenagers with drug
Zónová, Jana ; Vaníčková, Eva (advisor) ; Kopřivová Herotová, Tereza (referee)
This bachelor's work is focused on teenager's drugs experience and shows current situation in some selected secondary schools in Prague. It compares student's attitude and experience among gymnasium and secondary practice school with most common addictive substances, such as cigarettes, alcohol and marijuana. This work investigates extent of compatibility addictive substances with studies, parenthood and career. Theoretical part look into the cause of drug abuse, risks which follow from addicted behavior and juvenile crime in connection with drug abuse. There is summary of specific effects of addictive substances on teenagers and particular stages of the dependency progress. At the end of the theoretical part of this work you will find way of prevention and the official Czech Republic anti-drug strategy. This work is highlighting that drugs are very serious global problem of our today's world, and warning against the dangerous way of underestimation of drug abuse across all society. The prevention at school and families has to be a must. The most common used words: teenager - drugs - cigarettes - alcohol - marijuana - addiction - prevention

Environment in China - current state, problems and perspectives
Salačová, Aneta ; De Castro, Tereza (advisor) ; Neumann, Pavel (referee)
The problematics of the environment has been underestimated in China for a long time. This country has been developing with incredible speed in the last three decades. The price for such growth is the current state of the environment in China. The thesis is divided into three chapters. The goal of this thesis is to evaluate the current state of the environment in China and the development of the stance of the Chinese government towards the protection of the environment in the new millennium. In connection with the economic growth is analysed the dependence on air pollution and Chinese GDP. Last but not least are offered possible solutions and perspectives of the future development of air pollution in China.

Comparison of Instrument Transformer and Sensor Applications in Feeder Terminal REF 542plus
Hrycík, Tomáš ; Majer, Karol (referee) ; Orságová, Jaroslava (advisor)
The aim of this Master´s thesis is use of instrument transformers and sensors on field of industry protection. We will compare current and voltage transformers, current sensor – based on Rogowski coil, voltage sensor – based on voltage divider. By this measure devices, we can monitoring values of analog quantities in medium voltage switchgear. It is impossible to compare, measure and analyze without this measure devices. There is protection terminal REF542plus, which can compile this values. The REF542plus ability are measuring, monitoring, remote control and protection. First, we will discuss about theory of sensors and convential instrument transformers and analysis of analog signal. We will compare analog input channel on sensor´s analog module and transformer´s analog module. There are few differences between type of analog modules. For analog signal analysis are important frequency filters and Analog/ Digital Convertor (sigma-delta). We will describe functions and options of REF542plus. In practical part of this project, we will test protection functions of protection terminal. First, protection terminal will be connected to sensors. Second protection terminal will be connected to transformers. For testing we chose Earth-fault directional protection and differential protection. We will make only secondary tests. That´s mean, input analog quantities to REF542plus will be simulated by tester. In all we will verify quality of protection. We will focus on lower settings of protection and we will inject protection by low current. Objectives are testing of trip characteristics and measuring of trip time.

Strategic Trade Policy in Defence and Security Industry
Neumannová, Pavla ; Žamberský, Pavel (advisor) ; Jiránková, Martina (referee)
The master thesis is devoted to a nontraditional, however, in the todays world to a very current topic, arms industry and its support. The thesis connects the theoretical concept of the strategic trade policy (defined by P. Krugman or J. Brander) to its practical interpretation and application in the defence and security industry. The first chapter explains the strategic trade policy using the Brander Spencer analysis. The topic of the second chapter is strategic industries and this chapter answers the question whether the defence and security industry is a strategic industry or not. The third chapter analyses the possibilities of the support of DSI and compares approaches of different EU member states. The last chapter is devoted to the solution of this problem. The main contribution of this thesis is a new interpretation of the strategic trade policy, analysis of the importance of the defence and security industry and its support and suggestion of practical measures for Czech companies and for the Czech Ministry of Defence.