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Milling Machine for Machining of Plastics
Frejlich, Tomáš ; Brada, Michal (referee) ; Brandejs, Jan (advisor)
Bachelor thesis deals with the structural design of the longitudinal and transverse feed for the milling of embedded hollow fibers of fixed size used in heat exchangers and the design of these components during milling. The work contains a brief description of the routing, basic milling division and a brief overview of the kinds of lines that are use for machine tools. It als presents an overview of fastenings for easy and quick clamping of milling, individual design variations and optimal solution. The works also includes the drawing of the components and complete set. The results of the Bachelor thesis are used for the Laboratory heat transfer and flow at University of Technology, Faculty of Mechanical Engineering.
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Polymer-cement composites for refractory aplications
Zbončák, Marek ; Ptáček, Petr (referee) ; Šoukal, František (advisor)
This bachelor thesis deals with preparation of high-strength polymer-cement composites based on the calcium aluminate cement and polyvinylalcohol. MDF composites are interesting because of their mechanical properties which exceed strengths of the common materials based on the cement and inorganic binders. So they represent perspective kind of material which could be used for construction purposes. Thermal degradation of the polymer leads to structure changes of the composite and reduction of mechanical properties. Therefore thesis is aimed to characterize the influence of the temperature on mechanical properties, structural changes and material composition. Temperature dependence of flexural strength was examined during the work. Changes of composition and structure were characterized by XRD, DTA-TGA in combination with EGA, SEM and EDS analyses. Due to requirement of the material refractoriness there were also tested options of preparation of MDF composites based on phosphates binders which are used in refractory manufacture.
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Manufacture of compacted graphite cast iron
Jankes, Erik ; Bouška, Ondřej (referee) ; Záděra, Antonín (advisor)
Compacted graphite cast iron is new kind of cast iron that is applied especially in car industry. It is necessary to optimize metallurgical process of melting and verify technological behaviour of cast iron at loading production. This bachelor thesis describes the properties and known production possibilities of the material.
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Renewable energy sources in CR
Dohnal, Petr ; Chroboczek, Libor (referee) ; Fiedler, Jan (advisor)
This bachelors thesis is a technical recherche of using renewable energy sources in Czech republic which is specialized on waterpower. In this work are shortly described kinds of productions energy (electric and heat) from wind power, solar radiation, biomass, geothermal energy and the largest part deal with processing waterpower.
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New materials in welding technology
Křížek, Stanislav ; Janík, Martin (referee) ; Daněk, Ladislav (advisor)
The bechelor work elaborated in frame of studies branch B2339 deals with weldability of new kinds of steel especially about high-strength steel. This is a literary pursuit that includes problems with weldability, that means standing heat deformation cycle on defect activity in welding connection.
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The Impact of Taxation of Dividends and Capital Gains on Return on Shares and Share Price Behavior in Germany
Kraus, Pavel ; Marek, Petr (advisor) ; Kodera, Jan (referee) ; Hrdý, Milan (referee)
The impact of taxation on total return on shares and share price behavior around ex-dividend day is an ongoing problem in the field of Corporate Finance. Several groups of theoretical approaches have evolved since 1950s. Proponents of tax impact argue that share prices decline around ex-dividend day. The extent of decline is also a subject of academic discussions. Moreover, they also claim that shares with higher dividend yield must amount to higher total return on shares before tax in order to keep the total return on shares after tax equal for all kinds of shares. On the contrary, proponents of signalling effect insist on rising share prices around ex-dividend day. This dissertation is mainly aimed at empirical evaluation of the most significant findings mentioned above; based on tests of statistical hypothesis and regression and correlation analysis. The empirical study uses relevant data of German Stock Exchange in Frankfurt upon Main from 2001 till 2009. Additionally, the changes in taxation of dividends and capital gains in 2001 and 2008 are thoroughly explained and analysed with regard to return on shares and share price behavior. The dissertation is divided into 3 main parts including an analysis of current findings, explanation of main elements of tax reforms in 2001 and 2009 and, finally, an empirical analysis. The analysis of current findings includes a review of significant research on share price behavior around ex-dividend day, signalling effect and relationship between dividend yield and total return on shares before and after tax. Moreover, the verified hypotheses in this dissertation were deduced from revailing conclusions of the review. The explanation of main elements of tax reforms in 2001 and 2008 is focused on description of changes in taxation of dividends and capital gains. In 2001, the full imputation method eliminating double axation of dividends was removed and replaced by half-income method taxing only a half of dividend. In 2008, the half-income method was replaced by withholding tax; under defined circumstances by the 60%-income method taxing 60% of dividends. In an empirical analysis, the hypothesis about decline of share price around ex-dividend day and the hypothesis about decline of share price equal to dividend after tax were tested. Additionally, existence of positive relationship between total return on shares before tax and dividend yield and existence of no significant relationship between total return on shares after tax and dividend yield were verified. The decline of share prices was proved in every year. The existence of positive relationship between total return on shares before tax and dividend yield was confirmed in every year except 2006 and 2008.
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Economics of Volunteering: The Main Determinants of Productivity of Volunteer Firefighters
Růžičková, Tereza ; Komrska, Martin (advisor) ; Slaný, Martin (referee)
This thesis analyses the impact of selected determinants on the productivity of volunteer firefighters in the Czech Republic. Based on data from questionnaire survey of volunteer firefighters I estimated these econometrics models: Model for all interviewed volunteer firefighters, model for employed volunteer firefighters and models for men and women. The effect of income on the productivity of volunteer firefighters has not been demonstrated in this paper. The main hypothesis "Volunteer firefighters in high income jobs are less productive due to the higher opportunity costs in employment" remains unconfirmed. The assumption that women are less productive than men in this kind of volunteering was verified. On the other hand the assumption that living in the small town increased productivity has not been proven because the impact of living in the small town was negative for this productivity in two tested models.
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Analysis of situation of financial consulting in the Czech republic in 2014
Maleňák, Milan ; Gruber, Petr (advisor) ; Hanzlík, Karel (referee)
This bachelor thesis "Analysis of situation of financial consulting in the Czech republic in 2014" describes an actual practice of financial consultants from the view of a client. It also briefly characterizes all kinds of financial products, which most of the consultants offers. The author points out several particularities that are important for the client. In the second chapter there are described several types of agents which are legally allowed to offer those products. The final chapter shows an outcome from the survey, which researched people's experience with financial consultants and consulting companies. Those companies are also briefly described. Using the outcome of the survey, an author verifies some of the common hypotheses.
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Rozdíly v účinnosti a fytotoxicitě vybraných insekticidů pro ošetření orchidejí
Burianová, Ilona
The Bachelor thesis "The differences in the efficiency and the phytotoxicity of selected insecticides for treating orchids" deals with the orchid pests and various kind of protecting measures against them. Efficiency of the individual preparation and plant reactions to treatment are verify too. Pests cause important deterioration of quality. Knowledge of pests and pathogens biology, their harmfulness economic importance is prerequisite for effective protection against them.
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