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Cable harness tester
Vlasák, Stanislav ; Havránek, Zdeněk (referee) ; Burian, František (advisor)
This paper is focused on the problematics in testing of cables and wire harnesses. It follows up on a diploma thesis by Ing. Jakub Valenta. This paper consists of analysis of said diploma thesis and points out its shortcomings. Specifications of created protype of cable tester are mentioned in this paper, including its accuracy and suggestions for more accurate measurement of cable harnesses. Goal of this paper is to create a functional sample of cable tester based on foundations of Ing. Valenta
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Line protection against overload and short circuit
Konšel, Ladislav ; Vaněk, Jaromír (referee) ; Valenta, Jiří (advisor)
This work includes a theoretical treatise on the operation of electrical wiring for the overload and short circuit. This is mainly on thermal effects of over current and their influence on the properties of conductors and insulation. Work Includes links to determine the load current, depending on the properties of leadership and its surroundings. It also deals with the protection of conductors against overload and short circuit. The work includes measurements process of warming wires. Practical project of proposal circuit is created using SICHR. The project includes proposals of conductor’s sizes and safety components for both residential building and individual flats.
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Field strength measurement
Novák, Tomáš ; Dřínovský, Jiří (referee) ; Nováček, Zdeněk (advisor)
This thesis is focused on problems of measurement of field intensity especially in short-wave zone of received frequencies. To measure the intensity of electric field, it is necessary to use a suitable antenna whose properties and characteristics/parametres meet best the requirements of this measurement. These requirements are analysed/discussed in the introductory part of this thesis. From these requirements resulted one specific solution which is applicable to this problems. This solution is frame antenna which meets /matches best the requirements of this measurement. Furthermore, a complete suggestion for the frame antenna as well as its calculations were discussed. From individually calculated results graphical functionalities were set together that provided the bases for selection of suitable parameters for frame antenna. Then these bases were verified with similar antenna that was available. In second part of this thesis we modified standard antenna modul RFT FMA11 so that there would be a possibility to use it with any selective microvoltmeter.
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Diagnostic and improvement of electrical contact
Hrdý, Branislav ; Kuchyňková, Hana (referee) ; Veselka, František (advisor)
The aim of bachelor thesis is create a summary overview of terminals, to obtain information about contruction, materials of the conductive parts of the terminals and its snap methods. The next goal was description of methods of conductors’ construction and snap methods of its con-ductors. All processed information is obtained from the technical literature and from practical knowledge acquired during the measurement and monitoring of analyzed terminals. The final goal was to create an animated 3D model of terminal as a sample of main process of terminals’ working principle. In conclusion of this work is comparison of terminals, and their properties, facts observed during measurement or testing.
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Design of the distribution network branch for new family and apartment houses in Újezd u Brna
Frechová, Lucie ; Novák, Vojtěch (referee) ; Ptáček, Michal (advisor)
The work mentions the concept of present electricity networks in the Czech Republic and based on voltage levels it also describes distribution networks in more detail. Furthermore it brings the analysis of legislative conditions and technical aspects, under the rules of the distribution network operation, for new customers who require new connection to electricity network. Because of the steady-state network evaluation represents very important issue of the power system calculations, therefore it is explained in theoretical part of this work. Nowadays, Gauss-Seidel method and Newton iterative method are generally used for the steady-state analysis. Mentioned ones are also described and compared together in theoretical part. Furthermore methods are applied in practical part which solves specific configuration of the network in a given area. Moreover there are the basics of the conductor sizing in terms of the warming, both during normal operation and during a short circuit. However, it is necessary to respect other aspects of the conductor sizing, therefore issues of mechanical and electrical strength, the voltage drop and the sizing economy are also shown. There is also the characteristic of proposed and the description of the individual components which are used for the network i.e. transformation station, HV and LV switchgear, transformer, HV and LV cabling. It also concludes the characteristics of the design opportunity with their power and economical comparison.
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Cable harness tester
Valenta, Jakub ; Valach, Soběslav (referee) ; Burian, František (advisor)
This semestral paper deals with the issues of testing and requirements examinations for cables and cable harnesses. These terms are defined in the work and the difference in their meaning is described. The work also describes the characteristic features of cables and cable harnesses, explains their importance and focuses in more detail on the variable properties that may change over time or that are dependent on manufacturing errors. The principles and procedures of tests of these properties are covered in the work and are the essence of the subsequent practical part. In this part, the work deals with the design of the measuring circuit prototype for testing of the insulation resistance of cables and their desired continuity in bundles. This design is then physically implemented, the processes of designing and implementing are described in detail and finally its functionality is tested and presented to the reader.
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The motivation of non-professional musicians from the conductor's perspective
Šárková, Zuzana ; Froněk, Jan (advisor) ; Tureckiová, Michaela (referee)
This bachelor thesis The motivation of non-professional musicians from the conductor's perspective deals with motivation in amateur choirs. First, overview of relevant information from literature will be provided, in particular how it works and how to use it for effective stimulation to achieve high performance. The importance of leisure education and its specifics and possibilities will be demonstrated to explain how it works in amateur choirs. The psychological aspect of conductor's work is also significant, with focus on the personality of musicians, specifically conductors and choir members. Objective of this work is to provide conductors with deeper insight into the issues of leading and appropriate motivation of musicians, to fulfill demanding requirements that are coming from all sides. This work is enriched by field research - interviews with five conductors and a survey of choir members. Conductors present their ensembles and their point of view on what is important in their work to become successful. The questionnaire focuses on expected characteristics, what personality should a good conductor be according to choir members. This all contributes to deeper understanding of the conductor's job and gives suggestions and hints for more effective choir leading. This work can help beginning...
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Requiem as a musical form and it's transformations in themusic of nineteenth and twentieth centuries
Gonata, Elena ; Pecháček, Stanislav (advisor) ; Holubec, Jiří (referee) ; Valášek, Marek (referee)
In this thesis, the evolution of the Requiem Mass throughout the centuries has been explored. The evidence provided clearly demonstrates the changes that the Requiem mass has gone through, from the first traditional Requiem mass all the way to the new Requiems of the Contemporary era. While early composers were inspired by religion, over time, a clear shift towards freedom of expression (war, human losses, tragic events) is evident. Requiems can be written for liturgical use and concert halls, and can be performed by choirs, soloists and orchestras (Acapella and Orchestral compositions). Requiems can have both short and long durations, and can have different textures (polyphonic style, homophonic style etc.). The traditional Latin language and religious texts are still widely used, however, there have been many changes throughout the centuries, such as the use of translations into different languages, the use of psalms, bible verses, poetry and famous speeches. Today, a large number of Requiems can be found from composers on a worldwide scale, including America, Europe and Great Britain.
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Jaroslav Vogel (1894-1970) - artistic profile
Černíková, Lenka
The framework consists of comprehensive dissertation intepretation and sources concerning the conductor, composer, journalist, and organizer of musical life Jaroslav Vogel (1894- 1970). Along with a comprehensive description of the artistic profile, synthesis, and attempt of a critical evaluation, the chapters are structured thematically in this work, with regard to the time sequence. The principal sources were archives and daily newspapers, in which the obtained information was verified and developed. The introductory chapter is devoted to family, education, and the first professional experience indicates the relation between his studies and the genesis of Vogel's future professional direction. The central article is part of the work of the artistically important period in the opera ensemble of the Národní divadlo moravskoslezské (National Moravian-Silesian Theatre) in Moravská Ostrava between the world wars, when its implementation and opera concerts of symphonic music reached a high artistic level, with extraordinary social and educational outreach. The view of dramaturgy and quality opera productions and concerts provide the opportunity to evaluate the significance of his organizational skills and influence on the development of Ostrava music culture. For the first time ever, this paper...
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Notable Personalities of the Post-War Musical Development of the region under Jestřebí Mouintains
Hájková, Václava ; Saláková, Magdalena (advisor) ; Bělohlávková, Petra (referee)
This diploma thesis is based on the analysis of primary and secondary sources, including authentic memories of living witnesses. It focuses on important personalities of the musical life in the border region around the former Sudetenland, specifically on the life and work of selected composers, musicologists, teachers, choir masters , conductors, and active musicians working in the region below the Jestřebí Mountains - the area between Náchod and Trutnov, that is Červený Kostelec, Rtyně v Podkrkonoší, Malé Svatoňovice, Úpice, and Trutnov. These are personalities who contributed not only to the development of regional music, but also to the education of new talents, between the years of 1940 and 1980 of the 20th century (however, the work with its biographical character presents some overlaps to other eras, such as the pre-war era, the times of war, or the post-revolutionary era). In the presented text, individual biographies of selected musically-active individuals are reconstructed, during whose often difficult lives significant historical events (including social repressions) took place. There was often mutual cooperation between the personalities discussed in this work, and they often influenced each other. The profiles of the personalities are arranged alphabetically. KEYWORDS Educator,...
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