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Analysis of the gas flow when pumping vacuum for newly designed scintillation detector
Poruban, Milan ; Vaculík, Sebastian (referee) ; Maxa, Jiří (advisor)
The aim of this thesis is to study the issue of eniveromental scanning electron microscopy and pumping gas to create vacuum in the newly designed scintillation detector. Further, creating a model of recently proposed scintillation detector and simulating and analyzing pumping gas in differentially pumped chamber of detector. The theoretical part deals with electron microscopy, electron sources, electron optics and secondary electrons detectors. It is also presented which signals are generated by the electron beam on the surface of a solid. Further fluid flow issues and equations describing the flow in the solved chamber are dismantled. Furthermore, the impact of gaseous environment on the trajectory of primary electrons, because there are collisions of primary beam with atoms and molecules of gas. The following section discusses creating, quality and importance of the network in mathematical modelling. A method of a final volume used to calculate the differential equations describing the flow of gas at the premises of the detector is described . The practical part consists in creating a model of scintillation detector and analyzing the gas flow in drawing a vacuum in the newly designed scintillation detector. At the end the simulation results of gas flow are compared for different variants of apertures and various pressures on the neck of a scintillation detector designed for optimum performance of the detector. The outcome of this thesis is model of newly designed scintillation detector with optimized shapes of apertures according to functional requirements.
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The Upper Limb Prosthesis And Its Impact On A Patient's Mental State
Štechová, Eva ; Bachura,, Marek (referee) ; Zdařil, Zdeněk (advisor)
Bachelor's thesis deals with myoelectric upper limb prosthesis and it's effect on mental state of the patient. It was created as a collaboration with company OTTOBOCK SLOVAKIA s.r.o, company that distributes prostheses and other devices to help improve or preserve mobility for disabled patients. I chose one of their products, Greifer, and decided to do a redesign. Greifer is a prosthesis made for delicate work with small objects on one hand, on the other for harder work that requires a firm grip. I created the design with regards to ergonomics, functionality and aesthetic quality. My aim was to create a product that a patient would easily get used to, and it would not draw negative attention of other people, which would have negative effect on a mental health of the patient. Functionally I followed the today's Greifer system provided by Ottobock at first, but then I added the function of rotation around spherical joint, inspired by an actual human wrist joint.
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Thermodynamic cycle hot engine
Matuška, Petr ; Kloss, Ondřej (referee) ; Kaplan, Zdeněk (advisor)
The aim of this work was to summarize basic theoretical knowledge of ideal thermodynamic cycles of heat machines and to develop their mathematical models to calculate and draw diagrams of each cycle. Based on the information found and calculations made, it was then possible to compare the individual cycles with each other.
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Roof construction over scating ring
Pospíšilová, Lenka ; Pinkas, Karel (referee) ; Klusáček, Ladislav (advisor)
This document describes the design of the roof structure for the dimensions of the rink. It was designed and evaluated three roofing solutions – steel truss structure, concrete arch with external prestress and prestress truss roof girder with concrete roof panel. One option was selected – prestress truss girder. This variant has been further developed. In the beginning was drafted several proposals geometry respecting the demands on the type of construction. Within the static calculation was created a mathematical model of the structure of the program Scia Engineer. Using this model were obtained values needed for the assessment of individual elements of construction and design assessment as a whole for the ultimate limit state and usability. According to the proposed geometry and opinions parts of the structure was drawing documentation structure as a whole and individual parts of the structure solved in this thesis. The last proposal was visualized structures together with the phases of the construction by program ArchiCAD and rendered by program Artlantis.
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Investment climate and FDI in the United Kingdom and France, and their comparison
Hujová, Petra ; Černá, Iveta (advisor) ; Taušer, Josef (referee)
The main objective of the diploma thesis is to provide a comprehensive analysis of the current investment climate in the United Kingdom and France, and to draw their comparison. It includes an analysis of significant political, economic, social, technological and legal factors, as well as assessment of available investment incentives. The thesis also contains an evaluation of FDI inflows to both countries. The thesis is consequently aimed at determining mutual competitive advantages of the United Kingdom and France.
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Valuation of Structured Products
Dohnálek, Jan ; Brada, Jaroslav (advisor) ; Kováč, Michal (referee)
The objective of the thesis is to acquaint readers with field of structured product valuation. It is a relatively complex issue which is, however, based on general valuation foundations. The opening chapter is dedicated to these general fundamentals of valuation. Emphasis is placed mainly on present value principle, a specific variant of comparison, and its related aspects. The second section describes key elements of structured product valuation. Greater part of this chapter is devoted to the Monte Carlo simulation, the most employed tool in valuation of these products in practice. An important part of Monte Carlo simulation is an option spread, which arises as by-product of the simulation and reflects value of an option contained in the evaluated instrument. Third chapter is focused on interest rate and prepayment models. Level of prepayment is dependent on interest rates development which both are the most critical factors that affect value of structured products. Description of models includes theoretical and mathematical formulation as well as mentioning their advantages and disadvantages. Valuation model is illustrated in the last part, which is demonstrated on valuation of hypothetical structured products example. Based on the model, the development of cash flows from underlying asset portfolio is forecasted which in turn determines the value of evaluated instruments. The final section deals with advantages of structured products and, hence, why banks and other institutions use them in practice.
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Analysis of the revenue the state financial statements for the years 1993 - 2007
Roučková, Kateřina ; Klazar, Stanislav (advisor) ; Jelínek, Michal (referee)
This work deals with the general theme of the state budget and the state financial statement. The specific objectives of the work is the analysis of the state financial statements of the Czech Republic in the years 1993 - 2007 and mainly evaluate the success rate of governments in drawing up national budgets in comparison with results published in the state financial statement for individual years. The work is divided into three chapters. The first chapter consists of a theoretical basis for the next chapter. It deals with the characteristics, the content and explanation of the most important elements of the state budget and the state financial statement. The second chapter addresses the secondary objective of the work, the analysis of the state financial statements of the Czech Republic in the years 1993 - 2007 in terms of revenue. The third chapter is focusing on analysis and evaluation of the success of governments in the compilation of selected parts of national budgets.
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Formula Car Pedal Assembly
Pilčík, Adam ; Beran, Martin (referee) ; Ramík, Pavel (advisor)
This thesis draws up a basic overview of the current groups pedal cars. It focuses on creating a computer model of the pedal group with the help of the mathematical model and simulation stress of individual components and proposed relief.
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Application of Combinatorial Auctions on Public Procurement
Kohoutová, Adéla ; Fiala, Petr (advisor) ; Borovička, Adam (referee)
The public procurement draws a lot of attention in terms of treatment with public resources. Unfortunately this attention has mostly negative character. The aim of this Diploma Thesis is to bring an untraditional overview on the processing of public procurement and introduce one of the modern ways of using auction mechanisms. Combinatorial auctions can, as it already happened in other areas, open new possibilities for contracting authorities and bidders who participate in procurement conducted in accordance with Czech legislation. Also this Diploma Thesis can be the inspiration for thought if the current rules for public procurement are in accordance with the best interests of contracting authorities and bidders. In order to present the application of combinatorial auctions on public procurement the mathematical model based on partially real data was compiled in software Lingo. The results of such model were used as the source for the effectiveness analysis of discussed topic.
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Design of electric tackle
Hovádek, Pavel ; Malášek, Jiří (referee) ; Škopán, Miroslav (advisor)
Bachelor’s labour id concerned about design and construction electrical TACKLE with hand carriage travel. It contains retrieval part of present knowledge, multiple choice selection and mathematical calculation. Work also contains project drawings.
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