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Enrichment and reprocessing of nuclear fuel
Janoušek, Petr ; Elbl, Patrik (referee) ; Sitek, Tomáš (advisor)
Nuclear fuel is one form of electricity generation. This bachelor thesis deals with its modification and processing as this fuel has to undergo special processes to ensure its good usability. The aim of the thesis is to list and analyze the main processes involved in the production of nuclear fuel. The thesis is, in particular, focused on the enrichment of nuclear fuel, which is the process of enhancing its properties. The first and second chapter of the paper discusses basic issues of first nuclear energy and then nuclear fuel. The third chapter of the thesis explains in detail the enrichment of nuclear fuel and also describes different methods of enrichment. Another process taking place after nuclear fuel is used is it's reprocessing. This method of converting used fuel into fuel that can be reused is dealt with in the last chapter of the thesis.
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Analysis of stresses in left ventricular wall during isovolumic contraction
Janoušek, Petr ; Burša, Jiří (referee) ; Vaverka, Jiří (advisor)
The objective of this work is the analysis of stresses in the left heart ventricle during the isovolumic-contraction phase, in which blood is compressed without changing its volume in the ventricle. In this work, the left ventricle is modeled using a simplified axisymmetric sphere in order to be able to (1) perform an analytical solution from the relations given in the literature corresponding to the theory of linear elasticity, and (2) compare this solution with the model calculated by the finite element method. The model itself is a thick-wall sphere, which is affected by an internal overpressure arised as a reaction from the compressed blood. In order to achieve a constant internal volume, an active strain which acts against the internal pressure is also considered.
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The development of composites based on inorganic binders designed for the extreme applications
Janoušek, Petr ; Šácha, Libor (referee) ; Dufka, Amos (advisor)
The topic of this master's thesis is the development of composite materials based on inorganic binders for use in extreme conditions. It means especially geopolymeric or alkali activated materials (AAM) based composites. The theoretical part of this thesis summarizes knowledges about the development and use of alkali-activated materials, their structure and mechanisms of their formation. It also deals with the applicable raw materials for AAM and their exciters, which are in particular water glass and sodium hydroxide. There also have been a summary of the effects of high temperatures and chemicals on the mechanical properties of AAM and the requirements of standard EN 1504-3 for repairing materials. The task of the practical part was to develop a repair mortar for concrete structures based on AAM so that its production was as simple as possible, ie one-component materials. Gradually six recipes have been develeoped. Test specimens made from these recipes have been putted to selected tests according to the requirements of ČSN EN 1504-3.
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Information System Assessment and Proposal of ICT Modification
Šuňavcová, Nikola ; Janoušek, Petr (referee) ; Koch, Miloš (advisor)
The diploma thesis is focusing on the assessment of the information system and the proposal of its changes in the company AUTOCONT a.s. My thesis describes an analysis of the current state of the company and subsequent proposals to improve the system, which should bring to the company to improve work efficiency. The suggestions for improvement themselves are based on analyzes of the current situation.
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The Use of Project Management in Application Development in a Company
Pavliňák, Lukáš ; Janoušek, Petr (referee) ; Širáňová, Lenka (advisor)
The bachelor's thesis is focused on the use of project management methods in the development of an application for a company. The first part deals with the theoretical concepts and methods that are used in the design part. The analytical part describes the current state of the company AUTOCONT a.s., where the project is implemented, and the way projects are managed there. It also describes the project itself, for which the design part of the thesis refers to the use of project management tools to develop an application for the Microsoft Dynamics 365 Business Central enterprise information system.
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The Use of Metohods of the Project Management in IT Projects
Balogová, Veronika ; Ing.Petr Janoušek (referee) ; Širáňová, Lenka (advisor)
The bachelor's thesis focuses on the application of acquired knowledge, tools, and methods of project management in the implementation of an ERP system project for a client. The theoretical part of the thesis concentrates on the basic concepts related to the topic and is subsequently utilized in the other parts of the work. The analytical part examines the current state of the company AUTOCONT and its approach to project management. The final proposal section builds upon the analytical part and is dedicated to proposing solutions to the project using project management tools and methods.
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Enrichment and reprocessing of nuclear fuel
Janoušek, Petr ; Elbl, Patrik (referee) ; Sitek, Tomáš (advisor)
Nuclear fuel is one form of electricity generation. This bachelor thesis deals with its modification and processing as this fuel has to undergo special processes to ensure its good usability. The aim of the thesis is to list and analyze the main processes involved in the production of nuclear fuel. The thesis is, in particular, focused on the enrichment of nuclear fuel, which is the process of enhancing its properties. The first and second chapter of the paper discusses basic issues of first nuclear energy and then nuclear fuel. The third chapter of the thesis explains in detail the enrichment of nuclear fuel and also describes different methods of enrichment. Another process taking place after nuclear fuel is used is it's reprocessing. This method of converting used fuel into fuel that can be reused is dealt with in the last chapter of the thesis.
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Analysis of stresses in left ventricular wall during isovolumic contraction
Janoušek, Petr ; Burša, Jiří (referee) ; Vaverka, Jiří (advisor)
The objective of this work is the analysis of stresses in the left heart ventricle during the isovolumic-contraction phase, in which blood is compressed without changing its volume in the ventricle. In this work, the left ventricle is modeled using a simplified axisymmetric sphere in order to be able to (1) perform an analytical solution from the relations given in the literature corresponding to the theory of linear elasticity, and (2) compare this solution with the model calculated by the finite element method. The model itself is a thick-wall sphere, which is affected by an internal overpressure arised as a reaction from the compressed blood. In order to achieve a constant internal volume, an active strain which acts against the internal pressure is also considered.
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Czechoslovak Immigrants in France, 1918-1940. The Mother Land's Attitude to the Expatriates.
Preradová, Jarmila ; Horčička, Václav (advisor) ; Janoušek, Petr (referee)
The topic of this diploma thesis is the analysis of attention paid and care given by Czechoslovakia to its compatriots in France during the time period between World Wars 1 and 2. First four chapters are dedicated to the background of later research into the subject. These chapters gradually outline the situation concerning Czech and Slovak emigrants in France, the structure and development of Czechoslovak compatriot associations in France, summary of Czechoslovak government institutions as well as private organizations providing care for Czechoslovak compatriots abroad, followed by an outline of emigrant congresses where the migrants presented their needs and the associated effort to raise awareness about the lives of emigrants in their homeland. Principal merit of this thesis is in its actual research into the attitude of Czechoslovakia towards its compatriots from social, cultural and religious viewpoints, partially even from the economic standpoint but this sector is mostly interwoven into other chapters. The present author reached the conclusion that despite a substantial number of organizations engaged in this matter, care for compatriots provided by Czechoslovakia was inadequate in its entirety, both in the sphere of financial, material or spiritual support and in terms of relatively weak...
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The development of new dilational stents for resolving chronic benign stenosis and strictures of the respiratory airways and esophagus in children
Janoušek, Petr ; Kabelka, Zdeněk (advisor) ; Betka, Jan (referee) ; Šlapák, Ivo (referee) ; Přádný, Martin (referee)
Stenosis of the larynx and trachea accounts for a small but adverse spectrum of diagnoses in patients treated in ENT and Head and Neck Surgical departments. In treating chronic stenosis and strictures, an unequivocal, generally -accepted approach has not been established. The predominant method of treatment is surgical. Other methods applied include endoscopic (laservaporation, aryteooidectomy) and extemal (expansive, resection) procedures. 10 the pediatric population, the desired method is one which has a minimal1y harmful impact to the growing child. For these reasons, indications to exteosive surgical treatments are limited. Dilatation of stenosis and stricture, and temporary maintaining of lumen patency using stents individual1y measured "to size" seem to afford greater advantages for use in the pediatric population. In cooperation with the Institute of Macromolecular Chemistry (Academy of Sciences, Czech Republic), we have worked on the development of stents suitable for clinical use that exhibit a combination of useful properties (rigidity, absorbability, biocompatibility, microbial inactivity). The steots were developed by polymerisatioo of 2 hydroxyethy1methacrylate onto a template made from polyethylenenterphtalate type silk (Dacron). The Poly-HEMA material is registered by the national Drug...
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