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Návrh a a variantní řešení sekundárního a terciálního okruhu jaderné elektrárny / Design and variant solutions od secondary and tertialy circuits of nuclear power plantHladík, Jakub January 2020 (has links)
The main aim of this diploma thesis is to acquaint the reader by the means of research with heat diagrams of nuclear power plants, and subsequently, submit a scheme design of partial components and their involvement to heat diagram. The work also reflects different drive variations of circulation pumps and cooling circuits.
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Parní turbína pro biomasový blok / Steam Turbine for Biomass Power PlantAbrahám, Jan January 2020 (has links)
Diploma thesis deals with the design of a condensing steam turbine with one controlled steam extraction. Its working range is 0 to 10 t/h. The first part contains the design of the heat balance scheme. The turbine has two unregulated steam extractions for low-pressure feedwater heater and outlet steam is cooled by water condenser. The main part is the design of the turbine flow channel with one regulative stage using impulse blading and 26 regular stages using reaction blading. The turbine rotating speed is 8500 rpm, which is strength suitable even in critical points. The following chapters are describing the design of the compensation piston and bearings. The consumption characteristic of the steam turbine is shown in the last chapter. Drawing of the turbine section is attached to this thesis. Final turbine power is 9259,7 kW and thermodynamic efficiency 85,5 %.
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Návrh koncepce tepelné elektrárnyZbořil, David January 2020 (has links)
This diploma thesis deals with the design of a thermal scheme of steam power plant. The introductory part of the thesis is dedicated to theory about thermal power plants, especially those with supercritical steam parameters. In the following parts, there is a design of the thermal scheme of the coal burning power plant. First separate parts, then all interconnected. The last chapter deals with energy and media balance involved in the process.
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Parní turbína pro malý jaderný zdroj / Steam turbine for a small nuclear power plantBiskup, Michal January 2021 (has links)
This master´s thesis deals with the design of a steam turbine for a small nuclear power plant with a power of 50 MWe. In the first part of the work is proposed thermal and mass balance. The turbine has seven unregulated steam extractions, which are divided: two are for high-pressure feedwater heater, four are for low-pressure condensate heater and one is for degassing. The next chapter deals with the calculation of the regulation stage which is designed like an A-wheel and here is also strength control. Then, a pre-design and a detailed design of the stage part with the reaction blading. The stage part is consisted of eight cones with a total number of 27 stages. In the following chapters, is calculated the compensating piston, seals system and bearings. In the end, is made the consumption diagram. Part of the work is a conceptual drawing of a steam turbine section. The resulting steam turbine has a power output 50,197 MW and an internal thermodynamic efficiency of 73,9 %.
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Vnímání tělesného schématu u dětí / Perception of body image in childrenPelikánová, Gabriela January 2021 (has links)
Title: Perception of Body schema in children Objectives: The aim of the thesis paper on the Perception of Body schema in children is to study the influence of sex and exercise on the subjective perception of the body in older school age. Furthermore, the influence of sex and regular exercise on the relationship to one's body is also observed. Foundation: The understanding of one's body schema is an important factor of overall wellness and is vital in correctly performing physical activities, or, when distorted, for the timely discernment of possible issues. This makes the insight into adolescent's understanding of body schema important not only with regards to injury or health issue prevention, but also with regards to the massive importance of physical activity in maintaining a person's physical and mental wellbeing. Methods: This paper is a quantitative survey method. A set of 40 respondents, 20 male and 20 female (ages 13-17) were given CMAS, BAT, personal questionnaires and a BSE measurement. The BSE method was used to establish a body schema with regards to physical activity (PA) and sex. The BAT questionnaire was used to establish a body image for each subject and whether there is any connection between body schema, PA, sex and body image. Results: The results show no statistically...
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Efektivní nástroj pro kompresi obrazu v jazyce Java / JAVA-based effective implementation of an image compression toolPrůša, Zdeněk January 2008 (has links)
This diploma thesis deals with digital image lossy compression. Lossy compression in general inserts some kind of distorsion to the resulting image. The distorsion should not be interupting or even noticable in the better case. For image analysis there is used process called transformation and for choosing relevant coefficients process called coding. Evaluation of image quallity can be done by objective or subjective method. There is encoder introduced and realized in this work. Encoder utilizes two-dimension wavelet transform and SPIHT algortihm for coefficient coding. It was made use of accelerated method of wavelet transform computation by lifting scheme. Coder can proccess color information of images using modificated original SPIHT algorithm. For implementation the JAVA programming language was employed. The object-oriented design principes was made use of and thus the program is easy to extended. At demonstaration pictures there are shown effectiveness and characteristic way of distorsion of the proposed coder at high compression rates.
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Generátor biologických průběhů / Biological Signal GeneratorKadeřábek, Jan January 2010 (has links)
This semestral thesis describes signal EKG, it’s origin, evaluation and device for his generation. After identification with standard course of EKG signal, was such as signal created in program language Matlab. It’s consisting of 10 sinus courses, where each of them has it’s own frequence, start phase and amplitude. Each of this part of EKG signal is beat frequence variant. Rates of it’s durations and sizes were fixed from medicin literature. Such as created program were rewritten to program language C and is basic of main program, which control signal processor. Finally was propoused preparation, which will be generated this signal. Outcome of this thesis is teoretic treatise about signal EKG, created program for generation of this course include part control and machine doing realization of biological courses.
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Paralelizace genetických algoritmů / Paralelization of Genetic AlgorithmsHaupt, Daniel January 2011 (has links)
Tato práce se zabývá možností paralelizace Genetického Algoritmu a jeho ná-sledné evaluace pomocí testovacích účelových funkcí. První část je teoretická a shrnuje základní poznatky z oblasti Genetických Algoritmů, paralelních archi-tektur, paralelních výpočtů a optimalizace. A dále je tato část doplněna o mož-nosti paralelizace Genetického Algoritmu. V následující praktické části je rozebrán algoritmus paralelního Genetického Algoritmu, jenž je použitý při experimentu a také je diskutována struktura a účel zvoleného experimentu. Následně jsou diskutovány výsledky získané z běhu experimentu na Eridani Clusteru z pohledu zrychlení výpočtu, kvality nalezeného řešení a závislosti kvality řešení na migračním schématu.
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Výpočet parametrů asynchronního motoru metodou konečných prvků / Calculation of parameters of induction motor using FEMPešek, Michal January 2011 (has links)
This project is focused on finite element method, for purposes of asynchronous motor modeling. Program FEMM is used here, which works with two-dimensional models. The model is based on an existing motor. Then was conducted a series of simulations that are used to calculate the parameters of the circuit model. Then was measured the existing asynchronous motor and performed the calculation of the circuit model parameters of the motor. Compared with data obtained from motor and models Then was compared their torque characteristics. Moments was identified at certain slip frequencies and voltage or current in circuit model.
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Skupinové digitální podpisy / Group signature schemesSmrž, Jan January 2015 (has links)
Digital signatures are widespread in IT nowadays. In some cases there is emphasized the security of signer identity when signing an electronic message. For this type of signature group digital signatures are suitable. In this thesis basic cryptographic functions are presented which are used for group digital signatures. The principle of group signatures is explained, its advantages and nowadays use. Further are explained electronic election and it dis- and advantages. The practical part is a design and implementation of system suitable for electronic election allowing anonymity of voters using group digital signatures.
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