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Automatic Antenna Tuner
Šváb, Jaroslav ; Lukeš, Zbyněk (referee) ; Šebesta, Jiří (advisor)
This degree work deals with the design and implementation of an automatic antenna tuner for short-wave transmitters. The device works within the short-wave range in (1.5 MHz - 30 MHz) band according to the selection of the given frequency. Its principle is that the tuner has a small range of adapted impedances, but it is usually sufficient for fine tuning of most deviations in the system of antenna 50 - feeder 50 - transceiver outlet 50 . It is also equipped with memories which the settings for the individual bands or frequency segments are stored into. Then the transition from one band to another is quick, easy and, first of all, safe, which is a great advantage. In automatic mode, a SWR limit from which the tuner should start to tune can be set. Interconnection with a TRX is not necessary in a fully automatic mode, the device tunes automatically after keying if the set limit of SWR has been exceeded. The automatic tuning is very quick with this device, if the antenna being tuned is not stored in the memory the tuning lasts ca 0.5 - 6 s, if the tuner uses the memory. It could be said that the work with the tuner is without problems, it is possible to learn to control it in a short time. The tuner is small and light. The result of the whole project is a compact device controlled by the user by means of push buttons.
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Microcontrollers programming possibilities
Šubrt, Stanislav ; Kovář, Jiří (referee) ; Houška, Pavel (advisor)
This work is focused on inner structure and programming possibilities of microcontrollers. The work goal is to describe inner structure of microcontrollers from the programmer’s point of view, find out advantages and disadvantages of their programming in Assembly language, C language and higher-level languages. Code portability between different microcontrollers’ families and architectures is discussed further.
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Network traffic analysis on FPGA network card
Crháková, Marie ; Lieskovan, Tomáš (referee) ; Smékal, David (advisor)
Bachelor thesis contains description of ISO/OSI and TCP/IP, then is focused on packet headers of the protocols IP, TCP and UDP. After that is analysed the FPGA from the company Xilinx with network interface card from Netcope Technologies and their functions defined by Firmware Developer´s Manual. Finally the studied informations was used for create the program for counting packets, that was simulated and synthesized for field programmable gate array through Vivado.
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Representation of the sixties of 20th century in literary autobiography
Procházková, Lucie ; Kubíček, Tomáš (advisor) ; Mocná, Dagmar (referee)
This work is an attempt to gain a deeper understanding of the 1960s through an in-depth analysis of selected literary autobiographies. The first section is devoted to the theoretical foundation for exploring the chosen four texts of autobiographical literature. It is based on the analysis and subsequent comparison diaries of Ivan Diviš and Pavel Juráček and the memory of Vaclav Černý and Ota Filip. Additionally, this paper examines how these writers created an image of the 1960s and early 1970s.mFurther exploration includes narrative elements, for example, by what means texts are constructed, character space time, composition, and relationship to the audience. Moreover, the meaning of writing autobiographical literature, specifically the selected works, will be explored. Lastly, these major themes set the stage for the comprehensive analysis of the authors' works, revealing the creative design, history, society and culture of their time.
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Memoirs, historical-geographic source and the image of region (for example, the memoirs of FJ Vavák turn of the 18th and 19th centuries)
Svobodová, Zuzana ; Semotanová, Eva (advisor) ; Hojda, Zdeněk (referee)
This thesis is a contribution to the still not fully explored historical-geographical aspect of regional chronicles - Memories of F. J. Vavák, neighbour and mayor of Milčice. The main goal of the thesis was analysis of the image of the region which Vavák presented in his memoirs. As a reference source was used First Military Mapping - mapping and text supplement - as a historically appropriate source. The content of the first two chapters is Vavák's bibliography and introduction of the most important domestic and international contemporary events and affairs for easier understanding of the conditions and circumstances of the genesis of both main sources. Main chapter then presents the image of the region pictured both in Vavák's Memoirs and the First Military Mapping. As the memoirs is the very extensive source, it was necessary to choose "the overarching aspects," whereby is observed the image of the region. Based on the significant features of the memoirs was chosen following terms historical-geographical, social-topographical, economic, cultural, climatological and historical. Individual aspects were sequentially analyzed and documented by examples from Memories or the text part of the First Military Mapping. Comparing the mentioned sources was found, that those at first sight very different...
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Network traffic analysis on FPGA network card
Crháková, Marie ; Lieskovan, Tomáš (referee) ; Smékal, David (advisor)
Bachelor thesis contains description of ISO/OSI and TCP/IP, then is focused on packet headers of the protocols IP, TCP and UDP. After that is analysed the FPGA from the company Xilinx with network interface card from Netcope Technologies and their functions defined by Firmware Developer´s Manual. Finally the studied informations was used for create the program for counting packets, that was simulated and synthesized for field programmable gate array through Vivado.
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Memoirs of the citizens of Pilsen in the late 19th and the first half of the 20th century
MARTINOVSKÁ, Soňa
The aim of the dissertation is to present a set of memoirs preserved in Pilsen from the late 19th and the first half of the 20th century. Furthermore, it intends to incorporate these writings into a broader context within the research of personal sources. Therefore, the first chapter deals with the history of these sources as subjects of research interest and the possibilities of their use. In terms of methodology, the thesis wants to carry out a comprehensive analysis of a representative sample of these sources. At the same time, it assesses the internal and external features of the texts, but also addresses the life stories of individual authors and tries to reveal their possible motivations for the creation of these writings. Additionally, the dissertation seeks to compare the selected memoirs, especially in terms of their nature and content. It focuses on different methods of self-presentation of writers through these works and on the consolidation of their identities through recorded narratives. But it also deals with the ways of depicting the city of Pilsen and the changes in everyday life in its streets as well as with the reflection of major political events in the compared writings. Overall, the submitted thesis tries to contribute to a deeper understanding of the problematic and diverse era of modern history and to reveal the thought-world and behaviour of people at that time.
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Automatic Antenna Tuner
Šváb, Jaroslav ; Lukeš, Zbyněk (referee) ; Šebesta, Jiří (advisor)
This degree work deals with the design and implementation of an automatic antenna tuner for short-wave transmitters. The device works within the short-wave range in (1.5 MHz - 30 MHz) band according to the selection of the given frequency. Its principle is that the tuner has a small range of adapted impedances, but it is usually sufficient for fine tuning of most deviations in the system of antenna 50 - feeder 50 - transceiver outlet 50 . It is also equipped with memories which the settings for the individual bands or frequency segments are stored into. Then the transition from one band to another is quick, easy and, first of all, safe, which is a great advantage. In automatic mode, a SWR limit from which the tuner should start to tune can be set. Interconnection with a TRX is not necessary in a fully automatic mode, the device tunes automatically after keying if the set limit of SWR has been exceeded. The automatic tuning is very quick with this device, if the antenna being tuned is not stored in the memory the tuning lasts ca 0.5 - 6 s, if the tuner uses the memory. It could be said that the work with the tuner is without problems, it is possible to learn to control it in a short time. The tuner is small and light. The result of the whole project is a compact device controlled by the user by means of push buttons.
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School life in the years 1918 - 1945 in Subcarpathia
Bezdíčková, Kateřina ; Hnilica, Jiří (advisor) ; Pokorný, Jiří (referee)
The theme of this diploma thesis is school life in Subcarpathian Ruthenia between 1918-1945. The thesis tries to provide an overview of the development of education from the times of Austro-Hungarian Monarchy to Soviet Ukraine with a focus on the period of Czechoslovak government. In addition to the chapters on teachers, the language of instruction, teaching methodology, textbooks and teaching aids, there is also a chapter dedicated to the unique somatological research of school children. The work is based on archival materials supplemented by personal stories of witnesses. Its goal is to describe the normal school life in Subcarpathian Ruthenia, especially during the First Republic, from the point of view of pupils, students and teachers. Keywords: education, Subcarpathian Ruthenia, everyday life, Rusyns, memories, somatological research, teachers, Czechoslovak republic
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