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Generators for renewable energy
Prokop, Jan ; Macháček, Jan (referee) ; Baxant, Petr (advisor)
The bachelor thesis deals with the topic of generators, which will use alternative sources of energy instead of fossil fuels. The work is focusing on mechanical energy conversion. Introductory part of the text summarizes the requirements on the generator, properties and parameters of appliances, which will be connected to the generator, and finally the selection of suitable alternative fuels. Main part describes the process of a prototype realization. Individual parts of the device have been manufactured from a simplified technical documentation and sketches in the machine shops of the Secondary School of Electrotechnical Engineering on Trnkova street, and from these parts a functional generator prototype has been assembled. This prototype consists of two separate parts: a propulsion unit and an alternator with accessories, including appliances. On this prototype an efficiency measurement has also been carried out. Furthermore, the work includes animations of device functions created in modeling program SolidWorks 2012. Prototypes are based on a known principle of a steam engine and, at the request of the above-mentioned school, have been adapter into a visual teaching aid. The advantage of those prototypes lies in their inexpensive and simple construction, which utilizes commonly available materials. The device works on maintenance-free principle, there is only the necessity of occasional greasing for a fluent running. In conclusion are briefly reviewed the investment and operating costs of the generator.
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Analysis of effects of short-circuit current in switchgear cabinet
Prokop, Jan ; Bušov, Bohuslav (referee) ; Valenta, Jiří (advisor)
The work is focusing on dynamic effects of short-circuit currents, more precisely dynamic effects of short-circuit currents on switchgear cabinet (terminal box). The work was designated to a concrete construction type of two switchgear cabinets located on rotating machines via company Siemens Electric Machines Drásov s.r.o.. The switchgear cabinets are designed for non-explosive environment where the air is used as an insulating medium. The task was to determine how the device will behave during the three-phase short-circuit and three-phase short-circuit with earth/ground connection. The following programs were used for the calculations and simulations: Ansoft Maxwell 16.0, Ansoft Maxwell 2015 and ANSYS Workbench 16.0. By using these programs the effects of forces which acts on current paths in cabinet caused by the passage of short-circuit current were simulated, statically and also dynamically. Further the effects of pressure acting on cabinet frame during the arc short-circuit have been statically and dynamically simulated. All the results are summarized in the conclusion. Conclusion also contains the final evaluation of the functionality of both switchgear cabinets.
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Cloth moisture monitor
Prokop, Jan ; Jirgl, Miroslav (referee) ; Bradáč, Zdeněk (advisor)
The aim of this thesis is design and construction of cloth moisture monitor. This is the experimental device, which should be used to real time detection of urine leakage of patient and children. Principle of this device is measuring conductibility of moistured cloth. In the theoretical introduction, important methods of moisture measurement are discussed and compared in terms of cloth moisture detection. Signal processing is provided by a microcontroller, which displays humidity on the display and alerts audibly. The device is able to accurately measure humidity and allows you to set the humidity level on an audible alert.
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Calculating damages in copyright infringement claims
Prokop, Jan ; Žikovská, Petra (advisor) ; Holcová, Irena (referee)
Calculating damages in copyright infringement claims The diploma thesis is focused on the issue of calculating damages in copyright infringement claims. In the work, the author summarizes the basic aspects of copyright and subsequently focuses on the analysis of the current legislation on the calculation of the amount of damages in copyright infringement claims. The thesis is written with an emphasis on current trends in copyright law, which are mainly the use of author's works on the Internet, the use of file hosting repositories, framing, embedded links, and BitTorrent. The diploma thesis is divided into five chapters, among which the Introduction and Conclusion are not included. In the first chapter, the author describes the basic principles of copyright important for its functioning, provides definitions of important terms institutions, describes current developments and trends in the field of copyright and, in the end, addresses the issue of cybercrime. In the second chapter, the author discusses some ways of copyright infringement, considering current problems. The connection of copyright with some of the modern technologies mentioned above is also discussed in the second chapter. The chapter is supplemented by the most important jurisprudence in this area. The third chapter is dedicated to...
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Cloth moisture monitor
Prokop, Jan ; Jirgl, Miroslav (referee) ; Bradáč, Zdeněk (advisor)
The aim of this thesis is design and construction of cloth moisture monitor. This is the experimental device, which should be used to real time detection of urine leakage of patient and children. Principle of this device is measuring conductibility of moistured cloth. In the theoretical introduction, important methods of moisture measurement are discussed and compared in terms of cloth moisture detection. Signal processing is provided by a microcontroller, which displays humidity on the display and alerts audibly. The device is able to accurately measure humidity and allows you to set the humidity level on an audible alert.
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The Union of Prague Municipalities in 1518 and the Personality of Jan Pašek of Vrat
Prokop, Jan ; Zilynskyj, Bohdan (referee) ; Čornej, Petr (advisor)
Dějinami pražských měst v první polovině 16. století se zabývá poměrně velké množství dosud vydané historické literatury. Období bojů městského stavu s panstvem a rytíři patří nezanedbatelným událostem, které mají své pevné místo nejen v historii hlavního města, ale i v celých českých dějinách. Paradoxně je však většina textů pojednávajících o snaze měšťanů zajistit si své postavení mezi zemskými stavy součástí rozsáhlých publikací věnujících se synteticky dějinám Prahy od jejího počátku.
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