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Assessment of empirical formulae for determining hydraulic conductivity
Barenčík, Ladislav ; Zachoval, Zbyněk (referee) ; Říha, Jaromír (advisor)
The main purpose of this diploma thesis is to check up and compare empirical formulae (Hazen, Slichter, Terzaghi, Beyer, Zauerbrej, Krüger, Kozeny, Zunker, Zamarin, USBR, Pavčič) for determining hydraulic conductivity, which are mostly publicated in different and dimensionally inhomogenous forms. The importance of an accurate determination of hydraulic conductivity and the derivation of a general formula for determining hydraulic conductivity are listed in the first part of this diploma thesis. Assessment methodology and empirical formulae in dimensional homogenous form are described in the following part. Evaluating and comparing of empirical formulae is mentioned in the last part. According to the results of this diploma thesis, the best empirical formula for determinig and estimating hydraulic conductivity is Hazen formula. Formula with the widest range of validity is Slichter formula.
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Static Analysis for Discovering Security Vulnerabilities in Web Applications on the Asp.Net Platform
Říha, Jakub ; Lengál, Ondřej (referee) ; Vojnar, Tomáš (advisor)
Tato bakalářská práce popisuje jak teoretické základy, tak způsob vytvoření statického analyzátoru založeném na platformě .NET Framework a službách poskytnutých prostřednictvím .NET Compiler Platform. Tento analyzátor detekuje bezpečnostní slabiny typu SQL injection na platformě ASP.NET MVC. Analyzátor nejdříve sestrojuje grafy řízení toku jako abstraktní reprezentaci analyzovaného programu. Poté využívá statické analýzy pro sledování potenciálně nedůvěryhodných dat. Nakonec jsou výsledky analýzy prezentovány uživateli.
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Risk Analysis for Intermittent Water Supply Systems
Alayoubi, Mzayan ; Říha, Jaromír (referee) ; Munka,, Karol (referee) ; Tuhovčák, Ladislav (advisor)
Intermitted Water Supply strategy is implemented commonly in some developing countries nowadays in order to minimize the water scarcity problems. Unstable hydraulic conditions in the distribution system, low pressure, high risk of water contamination, wasting water, rising costs paid by consumers and water providers, failures and problems with consumption metering and inconvenience to consumers are some of the consequences. Risk Analysis Methodology is developed to handle with intermittent water supply systems in developing countries conditions that include undesired events identification; risk estimation and risk evaluation and reduction plan, the catalogue list of potential undesired events (UE) which may occur in these types of systems have been also developed using the HAZard and OPerability technique (HAZOP). The developed methodology is implemented and tested in this research on one of the potential undesired events UE _ Low operational pressure
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Assessment of dam safety during the floods
Hala, Mario ; Jandora, Jan (referee) ; Říha, Jaromír (advisor)
The Diploma thesis deals with the safety assesment of the small water reservoir Bartošovice III during the floods, according to requirments of TNV 75 2935 (technical standard). First two chapters are devoted to the description of the dam purpose. Following chapter deals with the summary of basic information and documentation, including hydraulic analysis. In the following section maximum permissible safe water level is determined together with the maximum check flood water level in reservoir which reflects the flood wave transformation. In the final evaluation the comparison of the maximum permissible safe water level with maximum check flood level is carried out. At the end of the thesis recommendations leading to ensuring of reliability and safety of water reservoir are listed.
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History of BMW engines
Říha, Jaroslav ; Prokop, Aleš (referee) ; Laurinec, Marián (advisor)
This bachelor thesis deals with the foundantion of the company BMW in Munich, the development of air, motorcycle and car engines, from their beginning to the present time. It also describes performance parameters and constructions of each type of the engine, crucial and most successful models and also a comparison with competing cars.
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The renewal of the weir and hydropower plant Hlubočky
Hajda, Jindřich ; Rainer, Vít (referee) ; Říha, Jaromír (advisor)
This bachelor thesis deals with the design of weir and small hydroelectric power plant in lokality Hlubočky-Dukla. This thesis is dividend into two parts: a text and drawings. The text part is further dividend into three main chapters – technical report, hydro-technical and hydro-energy calculations and photos. Technical report deals with description of the site and the propřed technical solution. The individual step sof the design described by hydro-calculations. Photo documentation illustrates the current state.
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Safety assesment of dams during floods.
Valchař, Jiří ; Šimek, Richard (referee) ; Říha, Jaromír (advisor)
This bachelor’s thesis deals with the safety assesment of the small water reservoir Bílovec during the floods, according to requirments of TNV 75 2935 (technical standard). First two chapters are devoted to description of the dam purpose. Following chapter deals with the summary of basic information and documentation, including hydraulic analysis. In the following section maximum permissible safe water level is determined together with the maximum check flood water level in reservoir which reflects the flood wave transformation. In the final evaluation the comparison between the maximum permissible safe water level and maximum check flood level is carried out. At the end of the thesis recommendations leading to ensuring of reliability and safety of water reservoir are listed.
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