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Extended Usage of SDH Equipment and TIMS System in Laboratories
Kadlec, Michal ; Vychodil, Petr (referee) ; Škorpil, Vladislav (advisor)
The goal of this project is to use the model for educational system TIMS as a simulation of Synchronous Digital Hierarchy SDH system and to create laboratory tasks applicable for teaching in a The theoretical part is the description of the transmission system, Synchronous Digital Hierarchy SDH and presents a theoretical basis of this issue. The practical part of the work offers 4 laboratory tutorials that can be used in teaching process.
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Preparing of Grätzel solar cell
Gerlich, Jakub ; Strachala, Dávid (referee) ; Kadlec, Michal (advisor)
This bachelor thesis focuses on the problematic of the dye-sensitized solar cells. The thesis states the working principle of these cells. It also deals with the use of different types of dyes, counterelectrodes, electrolytes and conducting glass. The thesis also contains the principles used in measuring the effectivity of solar cells. The manufacturing process of these cells is described in this thesis. The practical part of the thesis is focused on the manufacture of cell prototypes and the measuring of their parameters.
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Levitation electromagnet
Kadlec, Michal ; Huták, Petr (referee) ; Patočka, Miroslav (advisor)
This bachelors work deals with magnetic levitation and design of the electromagnet. The design of the electromagnet is a demand for a minimum amount of constructionand is performed in two ways. It also made a proposal of a mathematical model of the magnet control circuit and control simulation. The knowledge gained can be used tothe design of the electromagnet in engineering practice.
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Optimization of production of thin films of metallic materials
Čejka, Marek ; Kadlec, Michal (referee) ; Šubarda, Jiří (advisor)
The present thesis deals with optimization of the formation of thin layers of metallic materials. In the theoretical part was elaborated overview of the implementation of the formation of thin- film structures, particularly using vacuum techniques. Chemical and physical vapor deposition. They were described methods of pretreatment of thin layers. The findings were discussed methods of controlling the pre-treated surface, quality control and mutual adhesion of coating layers. In the experimental part of the pre-treatment methods were selected and applied to selected substrates. Pretreatments were evaluated using a control surface by wetting angles and by atomic force microscopy. Then, the metal structure formed of copper on the pretreated substrates. Implementation by means of magnetron sputtering. Adhesion layers was checked by testing the surface lattice method. The quality was observed by scanning electron microscopy. The results were used to design the technological process of making metal layers.
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Behaviour of varnish composite in various environmental condtions
Kadlec, Michal ; Frk, Martin (referee) ; Rozsívalová, Zdenka (advisor)
The diploma thesis is focused on the preparation of test samples of paint-filled micronized mica and analysis of electrical properties of insulating material values in different environmental conditions. For this purpose, it was created five sets of composite paint primers with different ratio of mica. Samples were gradually exposed to the environment relative humidity of 0%, 33%, 55%, 65% and 75%. For each environment with a defined moisture characteristics were observed in samples exposed to the temperature of 20 to 50 ° C. The diploma paper analyzed the influence of the mass implementation of mica in each set of samples and placed on the surface structure of samples.
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Influence of magnetic field on photovoltaic solar cell
Kadlec, Michal ; Šubarda, Jiří (referee) ; Šimonová, Lucie (advisor)
This thesis describes the issue of PN junction of photovoltaic cells, photovoltaic effect physics, basic materials used in photovoltaic and their properties, important for the area of photovoltaic. It deals with the problems of magnetism focused on electromagnetic fields. Experimental facility for measuring the influence of magnetic field on the solar cells through the Helmholtz coils was constructed. This work also dealing with the influence of magnetic radiation on photovoltaic cells and the influence of electromagnetic waves on the volt-ampere characteristics of the photovoltaic cell.
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Development and Innovation of Manufacturing Processes for Thin-Film Solar Cell Functional Layers
Kadlec, Michal ; Vanýsek, Petr (referee) ; Tauš, Peter (referee) ; Vaněk, Jiří (advisor)
The doctoral thesis deals with a group of thin-film photovoltaic cells based on pigment or perovskite absorption layers of light energy. The principal functionality of the cell is based on the capture of light by the pigment on a photosensitized semiconductor anode with subsequent regeneration of the pigment by the electrolyte. In our research we focused on the preparation and optimization of perovskite solar structures based on TiO2/CH3NH3PbI3. A total of six series of experimental solar cells with a perovskite structure were produced. The first two series were realized according to the chemical formula CH3NH3PbI3. In the other series, we applied the theory of added chlorine, resulting in the chemical formula CH3NH3PbI3Cl2. We defined the requirements for the creation of an active perovskite structure in the cell and determined its photovoltaic properties depending on the composition.
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Development and Innovation of Manufacturing Processes for Thin-Film Solar Cell Functional Layers
Kadlec, Michal ; Vanýsek, Petr (referee) ; Tauš, Peter (referee) ; Vaněk, Jiří (advisor)
The doctoral thesis deals with a group of thin-film photovoltaic cells based on pigment or perovskite absorption layers of light energy. The principal functionality of the cell is based on the capture of light by the pigment on a photosensitized semiconductor anode with subsequent regeneration of the pigment by the electrolyte. In our research we focused on the preparation and optimization of perovskite solar structures based on TiO2/CH3NH3PbI3. A total of six series of experimental solar cells with a perovskite structure were produced. The first two series were realized according to the chemical formula CH3NH3PbI3. In the other series, we applied the theory of added chlorine, resulting in the chemical formula CH3NH3PbI3Cl2. We defined the requirements for the creation of an active perovskite structure in the cell and determined its photovoltaic properties depending on the composition.
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Development of medical advertising in printed media-comparison between periodicals "Světozor" and "Týden"
Kadlec, Michal ; Vošahlíková, Pavla (advisor) ; Knapík, Jiří (referee)
This diploma thesis observes representation and evolution of medical advertisement, products and services in print. This evolution is shown on comparing the two eras, the "first republic" and modern Czech Republic. The studied years of 1928 and 2008 demarcate the period of 80 years of transformation of advertisement market, but some of the rules are the same. The goal of this diploma thesis is to describe contemporary advertisement in chosen printed media, the magazines for public without specialization or further attributes "Světozor" and "Týden" serve for the research. The thesis observes which services and products were offered, in context of what and which methods were used. The text goes on from introduction to the topic and issues and analysis of particular samples from magazines to their comparation. The results of diploma thesis is the evaluation of used rules, according to the media themselves and the timeline. Thesis deals with the regulation of medical advertisement aswell. To compare them and increase the number of samples, the advertising of cosmetics sold in pharmacies is added. .
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