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Quantification of natural water retention capacity in selected watersheds
Pavlík, František ; Švihla,, Vladimír (referee) ; Pavelková,, Renata (referee) ; Dumbrovský, Miroslav (advisor)
The aim of this work is to quantify the natural water retention capacity of the landscape in selected catchments and determine the significance of selected climatic and geographic basin factors on components of retention capacity. 18 rainfall-runoff events were selected in 11 catchments for quantification of the natural water retention capacity of landscape. Land cover, geomorphological, pedological and hydrological conditions were analyzed for this basin using GIS tools. Historical rainfall-runoff events for which were restored historical land cover were also evaluated in this work. Two different methods were used for the quantification of retention capacity, one of them was used in two variants. A rainfall-runoff models and simulated scenarios of land cover (positive and negative) were constructed in two selected catchments in HEC-HMS. The work also use previously performed simulation scenarios of land cover formulated by other authors. Total final set of 33 rainfall-runoff events were subjected to statistical correlation and regression analysis. The goal of these analyses was to determine the significance of individual parameters assessed in relation to the components of natural water retention of catchment.
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Study of the effects of ellipticity parameter on lubrication film shape
Pavlík, František ; Dzimko, Marián (referee) ; Křupka, Ivan (advisor)
Diploma thesis deals with elastohydrodynamic lubrication of point contacts, which surfaces are influenced by topography and velocity vector of one rubbing surface is misaligned. Author summarizes knowledge of previously published research articles, which fundamentally enrich current state of knowledge. Diploma thesis contains experimental measurement results of the film thickness and the way of lubrication film formation in elliptical contact for different ellipticity parameters, kinds of rubbing surfaces and angles of the velocity vector. New findings have helped to better understand the behaviour of highly loaded lubricated contacts taking place in machine components and completed the current state of knowledge with results that can be used in next thorough study of this issue.
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Influence of landscape structure on soil erosion and runoff conditions in the given watershed
Horký, Štěpán ; Pavlík, František (referee) ; Dumbrovský, Miroslav (advisor)
Subject of this thesis is evaluating influences of landscape structure on soil erosion and runoff conditions in the given watershed. For purposes of this work an area of village Lichnov in Moravskoslezský region was analyzed. In this thesis there are described theoretical concepts for calculation of soil erosion and runoff. Analyses of the area were based on a digital elevation model in ArcGIS software. To identify parcels at risk of erosion and runoff conditions were used Wischmeier and Smith equation and hydrological model DesQ – MAX Q.
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Flood prevention by using biotechnical measures
Pospíšil, Jan ; Pavlík, František (referee) ; Dumbrovský, Miroslav (advisor)
This thesis investigates the design of complex systems-natural flood control measures in the area of the cadastral municipality Jeseník nad Odrou. Based on the analysis and exploration of the territory, it was suggested a possible solution by erosion and hydrological GIS tools. To identify areas at risk of erosion and runoff conditions were used a digital elevation model, Wischmeier-Smith equation and model DesQ. Subsequently, the effectiveness was evaluated by comparing the results navžených measure erosion and runoff conditions before and after measures.
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Mortgage Crisis in the USA - Causes and Consequences
Pavlík, František ; Čajka, Radek (advisor) ; Chaloupka, Jiří (referee)
This bachelor thesis is aimed at the U.S. motgage crisis from the year 2007, to find causes and to analyze consequences. The first part of this thesis deals with the mortgage crisis from 1920s and 1930s. Then there are mentioned risks of the mortgage loan and the thesis explains the term securitization. In the folowing parts there are described the causes and process of the current mortgage crisis, the role of the government institutions and impact on the economic situation and society.
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