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Project of Photovoltaic Power Plant Grid Connection
Blažek, Tomáš ; Procházka, Aleš (referee) ; Orságová, Jaroslava (advisor)
This bachelors thesis deals with photovoltaic technology and economic evaluation of used technology equipment. The first part describes the technology for extraction of power from photovoltaic sources - transformer 22/0,4kV and its basic parts. Then there is the calculation of the amount of openings for cooling the transformer according to ČSN 33 3240. The second part focuses on the description of the major part of the photovoltaic plant. Here are divided solar panels on the material from which they are produced and the type of installation in the field. Next is describe the types of inverters, their principles and functions. The last part compares the different types of transformers and operating costs over the lifetime of plants (20 years), are described factors for proper selection of inverters and solar panels.
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Ferrous nanoparts localization in inner organelles
Solař, Jan ; Janoušek, Oto (referee) ; Čmiel, Vratislav (advisor)
This bachelor‘s thesis describes a behavior of iron nanoparticles in human mesenchymal stem cells. First section deals with methods of fluorescent labelling of organelles and nanoparticles and settings of confocal microscope for their detection. Next section describes the iron nanoparticles metabolism and accumulation in cells. Finally, there is a section about the developement of the software utility for the localization and for the quantitative analysis of the fluorescence organelles and nanoparticles inside the living cells.
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The effect of electromagnetic fields on cell structure
Urbánek, Jiří ; Fiala, Pavel (referee) ; Vlachová Hutová, Eliška (advisor)
The main concern of the work is researching the influence of electromagnetic field on cellular structures. Cellular structures is a general term for all the organelles placed in a cell. In our 2D model we take into consideration just the fundamental organelles such as cell membrane, cytoplasm and cell nucleus. The aim of the work was to get acquainted with the outer environment into which we had placed the 2D model of the cell and on which we had applied the magnetic field. The work contains the results gained by numeric modelling in the physical programme COMSOL. These results prove the theoretical presumption.
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Application for simulation of action potentials and membrane currents
Klouba, Lukáš ; Čmiel, Vratislav (referee) ; Chmelíková, Larisa (advisor)
This thesis deals with the basic electronic processes in the cell membrane, the methods of measuring electrical processes and possible numerical solution of this problem. Simulation of action potentials and membrane currents is important to understand the basic electrical processes in the cell. The result of this thesis is a program which simulates the voltage clamp method. Program can depict basic membrane currents and manages to resolve the values according to user-specified parameters. Supplement of this thesis contains detailed user manual.
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Design of mechanical, electrical construction and software equipment of autonomous cell "Ice crusher" for Industry 4.0 testbed.
Horák, Lukáš ; Benešl, Tomáš (referee) ; Pásek, Jan (advisor)
The goal of this bachelor thesis is design and construction of an autonomous cell on a production line with the purpose of being an „ice crusher“. The purpose of this cell is to be part of a Testbed. The cell will be controlled using a HMI touch panel and PLC 1200. Information about how much ice the cell should pour into a glass is stored in an NFC chip on the bottom of the glass. The first part of the thesis comprises of brief introduction to Industry 4.0 alongside with description of the default and current state of Industry 4.0 testbed. Another part describes mechanical and electrical design of the cell. Last part of the cell describes software of the cell alongside with description of testing and installing the cell to the testbed.
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Slithy, a blend of lithe and slimy
Šillerová, Kateřina ; Alster, Darina (referee) ; Hládeková, Katarína (advisor)
For my work Slithy, a Blend of Lithe and Slimy, a thought that consciousness appears even on the lowest levels of existence is essencial, I create an enviroment of a lab, in which spectator is in the role of another organism, surrounded by other organisms. I'm interested in relationship between microcosmos and macrocosmos and in seeing the same pattern through reality.
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Determination of the most suitable ratio of cathode materials for the lithium-sulfur battery system
Benešová, Petra ; Kazda, Tomáš (referee) ; Jaššo, Kamil (advisor)
This master's thesis deals with a topic of determination of the most suitable ratio of cathode materials for the lithium-sulfur systems. The first two chapters provide a general introduction to the topic of electrochemical energy sources and present the commonly used primary and secondary battery systems with emphasis on their characteristics and applications. The core of the theoretical part is dedicated to lithium-ion and lithium-sulfur batteries, their working principles along with the benefits or drawbacks related to the particular systems, and widely used materials. The experimental part briefly comments on determining the suitable electrode paste preparation method, the subsequent main part is focused on evaluation of electrochemical performance of cells using different ratios of cathode materials. Five samples of cathode materials were prepared, where the sulfur ratio is in range from 64 to 88 wt. %. Finally, the comparison of all prepared ratios in terms of their electrochemical properties is provided.
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Photovoltaic panels of new generation
Loveček, Michal ; Radil, Lukáš (referee) ; Mastný, Petr (advisor)
The Bachelor thesis deals with the possibilities how to take use of photovoltaic power stations situated in the Czech Republic. In the first part there is the procedure of photovoltaic energy convertion analyzed and the source of this energy described – Sun. The pieces of information about the technology of sollar cells manufacturig and some new technologies recently developed by scientist are summed up in the following part. As next there is the function of photovolatic arrays described as well as how the form of their construction affect their effectiveness. And last but not least the individual project of FV system for family house in Czech Republic with its evaluation is worked out.
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Batteries for medical applications
Pagáčová, Lenka ; Tichý, Jiří (referee) ; Kazda, Tomáš (advisor)
This master’s thesis deals with the influence of different carbon materials on the properties of Li-S accumulators. The theoretical part of the thesis describes primary and secondary electrochemical sources with a focus on medical applications. The second chapter deals individually with a lithium article. The main part of the thesis is the practical production of electrodes for Li-S accumulators using different types of carbon materials. The effects of these materials on the properties of accumulators are investigated to determine the most appropriate in terms of capacity and stability.
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A Brief Design of Optical Resonators
Hubík, Daniel ; Nešpor, Dušan (referee) ; Kadlec, Radim (advisor)
This bachelor thesis is focused on analysis of split-ring resonators in THz region. Simulations were made by finite elements method and by finite-difference time-domain method. At first we created a resonating structure that works in GHz region. Then we were observing a dependence of movement of resonant frequency on the size of resonator. In the final chapter we assigned frequency dependent values of permitivity to such structure. As the result we simulated working resonator at frequency 500THz. All simulations have been made in program HFSS ANSYS and Lumerical FDTD Solutions.
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