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WATERWAY, TO SING THE SPACE
Orel Tomáš, Jakub ; Šejn, Miloš (referee) ; Helia De Felice, Jennifer (advisor)
The way of the Jedovnice creek: connection with the spring Falling into the underground halls and back to the light. The Water Way is an intermedial poem that is concerned to the element of water, character of its way through the landscape and its presence in the landscape. Since the type of work I most prefer is the work in the landscape, I am returning back to the natural landscape, strong places in Moravian karst near Brno. The audiovisual poem is primarily focused on the moment of melting. Sublimation of ice from the ice shelter, ephemeral phenomena on the surface, such as miniature whirls, waves, rays of sunlight and especially moonlight. The poem focuses on the possibilities of transferring the experience with a specific place, and the events in a unique, unrepeatable time and space into the theatrical scene and possibilities of the musical and audiovisual interpretation of such experience. I work with digital media (video mix and audiostop) to transfer the artist's physical experience in a unique time and unique natural setting into the scenic form of the work. Considering the physical and symbolic qualities of the water element, I have abandoned the composition of the event in the classical sense.
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Study of gas influence on chemical processes initiated by electrical discharge in liquids
Dürrová, Anastasia ; Krčma, František (referee) ; Kozáková, Zdenka (advisor)
This thesis in the theoretical part focuses on the gas influence on chemical processes initiated by electrical discharge in liquids. This part described the possible diagnostic methods of reactive particles whitch are produced in water solutions after plasma treatment. The influence of different experimental conditions, such as the influence of gas, effect of voltage polarity, effect of electrolyte of hydrogen peroxide formation were studied. The comparison of selected two gases with different property, argon and oxygen, were realized. The effect of pH in phosphate solution was studied. This solutions are able to maintain relatively stable pH during the experiment and due to this property phosphates are very perspektive for medical applications.
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Manufacturing and defects of steel castings
Smilovský, David ; Čamek, Libor (referee) ; Záděra, Antonín (advisor)
A content of this thesis is an analysis of a steel castings production mismatch in Tatra Metallurgy foundry. Most common defects found on castings are gas holes. Thesis shows a theoretical research on casting defects caused by gases in steel castings. It also describes melting and degassing problematics of molten steel and procedures to reduce gas contents. The last part of theoretical research describes oxidation of steel in contact with silica mold. Practical part of thesis analysis production of steel castings to determine the cause of origin of gas holes. Main attention is paid to mold mixture, chemical composition, casting temperatures and casting time. The last chapter metallographically analysis two defected castings to determine the origin of defects. Main attention is paid to shape and chemical composition of gas holes and to morphology of steel inclusions.
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Comic Strip Generator - Mashup
Krutiš, Tomáš ; Svoboda, Pavel (referee) ; Kajan, Rudolf (advisor)
This Bachelor thesis describes a creation of a web application, in which can user create and save comics. As a sources of images are used web services, which provide images via their API. This application is mashup. The work describes applied technologies, design of web application and shows the implementation of some parts of the application.
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Optimization of manufacturing of iron castings to reduce the quantity of defects
Blaha, Marek ; Brázda, Zdeněk (referee) ; Juliš, Martin (advisor)
The presented diploma thesis is focused on defects of castings as well as optimization of production with the aim of reducing the number of defective products. The theoretical part is focused on basic information about cast iron and its production, structure and mechanical properties. Another part of this thesis describes the defects of castings and options for non-destructive testing of cast iron castings. In the experimental part are analyzed three sorts of defective casting. Castings for testing were provided by JMA s.r.o. foundry. The summary contains tests results and proposals for optimization of production.
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Modeling two-phase bubble flow in microfluidics
Stehlík, Martin ; Kozák, Jiří (referee) ; Rudolf, Pavel (advisor)
The goal of submitted thesis is to perform a computer simulation of bubble creation in T-channel. In the first section of the paper, the theoretical applications of microfluidic bubble, micromachines and droplet formation are described. In the second part of the text, author uses cross flowing method for simulation od bubble creation. Furthermore, several settings in computer simulation software Fluent are mentioned. In addition, the influence of velocity at the T-channel inlet on surface tension and on bubble length is presented.
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Stock Price Bubbles: Identification and the Effects of Monetary Policy
Koza, Oldřich ; Matějů, Jakub (advisor) ; Ryska, Pavel (referee)
This thesis studies bubbles in the U.S. stock market and how they are influenced by monetary policy pursued by the FED. Using Kalman filtering, the log-real price of S&P 500 is decomposed into a market-fundamentals component and a bubble component. The market-fundamentals component depends on the expected future dividends and the required rate of return, while the bubble component is treated as an unobserved state vector in the state-space model. The results suggest that, mainly in recent decades, the bubble has accounted for a substantial portion of S&P 500 price dynamics and might have played a significant role during major bull and bear markets. The innovation of this thesis is that it goes one step further and investigates the effects of monetary policy on both estimated components of S&P 500. For this purpose, the block- restriction VAR model is employed. The findings indicate that the decreasing interest rates have a significant short-term positive effect on the market-fundamentals component but not on the bubble. On the other hand, quantitative easing seems to have a positive effect on the bubble but not on the market-fundamentals component. Finally, the results suggest that the FED has not been successful at distinguishing between stock price movements due to fundamentals or the price misalignment.
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Fenomen deepfakes as a threat for journalism
Mudrová, Nikol ; Láb, Filip (advisor) ; Moravec, Václav (referee)
This Bachelor's thesis tackles the newly occurring type of fake news - deepfake videos. Considering they are quite new and not profusely misused to spread disinformation yet, the thesis embraces this phenomenon right from its roots. In the first section, it defines, what disinformation is, what did it emerge from, how did it look like in the past and how does it look like now. Obviously, to the topic also applies its psychological perspective - in this case, why people's brain does not identify fake news and which short-cuts in processing information take disinformators an advantage from. After such an introduction to the problematics follows a part, which explains the technology behind producing deepfake videos. In a practical part of the thesis concrete deepfake examples are analyzed. Based on this analysis and an interview with Jakub Zelenka, a journalist focusing on fake news, the thesis answers a question of whether and how deepfake videos influence journalism.
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Study of gas influence on chemical processes initiated by electrical discharge in liquids
Dürrová, Anastasia ; Krčma, František (referee) ; Kozáková, Zdenka (advisor)
This thesis in the theoretical part focuses on the gas influence on chemical processes initiated by electrical discharge in liquids. This part described the possible diagnostic methods of reactive particles whitch are produced in water solutions after plasma treatment. The influence of different experimental conditions, such as the influence of gas, effect of voltage polarity, effect of electrolyte of hydrogen peroxide formation were studied. The comparison of selected two gases with different property, argon and oxygen, were realized. The effect of pH in phosphate solution was studied. This solutions are able to maintain relatively stable pH during the experiment and due to this property phosphates are very perspektive for medical applications.
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Manufacturing and defects of steel castings
Smilovský, David ; Čamek, Libor (referee) ; Záděra, Antonín (advisor)
A content of this thesis is an analysis of a steel castings production mismatch in Tatra Metallurgy foundry. Most common defects found on castings are gas holes. Thesis shows a theoretical research on casting defects caused by gases in steel castings. It also describes melting and degassing problematics of molten steel and procedures to reduce gas contents. The last part of theoretical research describes oxidation of steel in contact with silica mold. Practical part of thesis analysis production of steel castings to determine the cause of origin of gas holes. Main attention is paid to mold mixture, chemical composition, casting temperatures and casting time. The last chapter metallographically analysis two defected castings to determine the origin of defects. Main attention is paid to shape and chemical composition of gas holes and to morphology of steel inclusions.
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