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161	Určení zdrojů fosforu a stanovení nápravných opatření eutrofizované Hornoveské nádrže / Determination of phosphorus sources and determine of corrective measures of Hornoveské eutrophic reservoir Čech, Dalibor January 2012 (has links) The aim of the present master's thesis is to assess the problem of eutrophication in the reservoir named Hornoveská reservoir near the city of Fryšták. The main goal of this thesis is to do a search report on the topic of eutrophication of surface waters, to do practical measurement and make samples in the Hornoveská reservoir, and then evaluate results from these actions and determine the source of phosphorus in the reservoir. Last goal is to suggest actions which can improve the condition of reservoir by limitation the occurrence of algae and cyanobacteria in the summer period.
162	A Numerical Investigation on VOD Nozzle Jets Song, Zhili January 2011 (has links) The metallurgic process, Vacuum Oxygen Decarburization (VOD) process, is used for producing stainless steels with ultra-low carbon grades. In a VOD process, an oxygen lance is equipped with a De Laval nozzle which injects high speed oxygen gas. The aim of this work is to increase the knowledge of the flow behavior in the harsh environment of VOD vessels. Two real VOD nozzles from industry were numerically studied and compared at different temperatures and ambient pressures. Flow patterns of the oxygen jet under different ambient pressures were studied and the flow information at different positions from the nozzle was analyzed. In addition, the study compared the effects of different ambient temperatures on the jet velocity and the dynamic pressure. The predictions revealed that the modeling results obtained with the CFD modeling showed an incorrect flow expansion, which agreed well with the results from the De Laval theory. Moreover, a little under-expansion is somewhat helpful to improve the dynamic pressure. The jet dynamic pressure and its width for the specific nozzle geometry have also been studied. It has been observed that a variation in the ambient pressure can influence the jet momentum and its width. In addition, a high ambient temperature has a positive effect on the improvement of the jet dynamic pressure. For the comparison between the two nozzles concerned, the modeling results showed that one of the nozzles was more applicably proper for lower pressures, displaying a more stable flow pattern. Furthermore, it was found that a change in ambient pressure has a stronger effect on the jet force than a change in ambient temperature. In addition, it was proved that the profiles of the dynamic pressure at a certain blowing distance fit well to Multi-Gaussian curves. / QC 20110920 VOD nozzle jet vaccum CFD Metallurgy and Metallic Materials Metallurgi och metalliska material
163	Vývoj kvality vody v povodí Mladotického potoka / Water quality development in Mladoticky Brook catchment area Vacková, Zuzana January 2014 (has links) Water quality was one of the biggest problems of environment in beginning of 90. of 20th century in the Czech republic. Since 90. the level of water quality was in czech rivers rapidly better. Mainly in big rivers have accomplished great changes. The small rivers haven't notice that rapid changes. The Czech republic, after entrance to the European Union have committed to comply with Directive 91/271/EEC reduce urban waste water and which should have big influence to water quality also in small rivers. During 90. industry technology, agriculture, cleaning technology of waste water etc. reached big development. Therefore the presumption is higher quality of water in the Czech republic since 90. Goal of the thesis is comparison of results from 1999-2000 with results from 2012- 2014 from Mladoticky brook catchment, which is lined up to small river catchments (79,77km2 ). From this comparison there is obvious trend, if conditions of the water quality are really better or not since 90. [33] Since 2012 to 2014 were taken 12 times samples from 11 profiles of water from Mladotice brook catchment and they were consequential chemically analyzed. The samples were evaluated according to ČSN 757221 and compared with results from 1999-2000. From comparison with data 1999-2000 and 2012-2014 was confirmed the...
164	Funktioner inom Video on Demand-tjänster : En användarstudie inom online streaming / Functions within video ondemand services : A user study within online streaming Andersson, Viktor, Norström, Karolina January 2014 (has links) Sedan 2013 har allt fler börjat använda sig av streamingtjänster för film och TV på internet (Findahl,2014). I takt med att användningen ökar är det viktigt att tjänsterna är välutvecklade och lättillgängliga för användaren. I denna uppsats undersöker vi funktioner på de tre största Video on Demand-tjänsterna (VoD) i Sverige ur ett användarperspektiv. Med hjälp av befintliga teorier och litteratur diskuterar vi användarbarhet och genomför en områdesanalys av de utvalda VoD-tjänsterna. Utifrån analysen har vi gått vidare med tio funktioner för att avgränsa studien. Uppsatsen innehåller två metoder; fokus grupper och enkätundersökning. Resultatet från dessa metoder presenteras i en rankningslista som ska fungera som rekommendation till operatörerna. Slutsatsen som kan dras från resultatet är att en VoD-tjänst som har flera eller alla av funktioner från rankningslistan tillgängliga, kommer ge användare en betydligt bättre användarupplevelse på webbplatsen. / The development of streaming media services has rapidly evolved since 2013 (Findahl, 2014). As the usage of video on demand (VOD) services increases, it becomes more important that the services are well developed and accessible to its users. In this essay we study the functionality of the three most used VOD-services in Sweden, from a user perspective. Using existing theories and literature, we discussusability and conduct a field evaluation, analysing the three VOD services. Based on the conducted evaluation, we decided to move forward with ten features that, we found, were the most useful from a user perspective. It also helped delimit the study. The essay contains two research methods, a questionnaire survey and focus groups. The results from the study are presented in a ranking-list that will serve as a recommendation to the operators of the VOD services. The conclusion we made from the ranking-list is that a VOD service that take most of these functions into account will make for a better user experience. video on demand VOD streaming video Netflix Viaplay HBO Nordic TV4 Play Premium function user perspective user experience usability Video on Demand VoD streaming video Netflix Viaplay HBO Nordic TV4 Play Premium användbarhet funktion användarperspektiv användarupplevelse Media and Communication Technology Medieteknik
165	Stanovení vybraných hormonálních přípravků pomocí kapalinové chromatografie s hmotnostním detektorem / Determination of selected hormonal drugs using liquid chromatography with mass detection Jurasová, Lenka January 2012 (has links) This master’s thesis is focused on optimizing of the analytical method for the determination of selected drugs - estrone, estradiole, ethynylestradiol, estriole, diethylstilestrole, norethindrone, mestranole and progestrone in wastewater using liquid chromatography with mass spectrometry (LC/MS). Solid phase extraction (SPE) using Oasis HLB cartridges was chosen extraction method Different mobile phase, temperature, flow rates and mobil phase gradient were during the process of optimization. Samples of the wastewater were collectedat the inflow and outlow of the wastewater treatment plant in Břeclav and in University of Veterinary and Pharmaceutical Sciences Brno. Drugs were isolated from wastewater and preconcentrated using solid phase extraction (SPE) and determined by high performance liquid chromatography with mass spectrometric detection (HPLC/MS).
166	Hospodaření s dešťovými vodami v komerčních objektech / Stormwater management in commercial centers Bekmukhambetova, Nuriia Unknown Date (has links) This diploma thesis is devoted to a rainwater management in commercial and administrative buildings. The goal of this work is to describe rainwater management system with a focus on its later usage. The work is divided into theoretical and practical parts. The first part examines the binding conditions, as well as the individual technologies and devices that must be included in the implementation of a rainwater management system. The practical part of the work is an analysis of the possibility of using rainwater for the needs of the fire brigade in Havlíčkův Brod. The result of this work is a calculation of the approximate payback period of the proposed system.
167	Zdravotně technické instalace v bytovém domě s podzemními garážemi / Sanitation installations in a multiple dwelling house with underground garages Straník, Petr January 2012 (has links) The Master's thesis solves questions about sanitation installations in a multiple dwelling house with underground garages in Brno. The theoretical part of this work focuses on the analysis of the topic with an emphasis on the management with rainwater. The work also focuses on the possible alternative solutions of the given specialization. Technical part solves the installation of sanitary of this apartment building in the selected variant. It is a multiple storey building, where five floors are used for housing and two underground floors are used mostly for parking.
168	Modelování znečištění povrchových vod v CHKO Křivoklátsko s využitím GIS / Modelling of surface water pollution in Krivoklatsko protected area using GIS Šereš, Michal January 2014 (has links) Environmental modelling is lately becoming to be one of the most important decision support systems. Hydrological models present significant potential for use especially in area of surface and groundwater protection. In the diploma thesis, the Soil and Water Assessment Tool (SWAT) was used to evaluate nitrate surface water pollution in nine catchments situated in Křivoklátsko protected area during the period of 2003 - 2010. Modelling process consist of assorted consequent steps. First the hydrological model of each catchment was created. Afterwards the sensitivity analysis was conducted to select most sensitive model parameters. Calibration process was carried out after the parameters selection using SWAT-CUP automatic calibration tool. Model results were visualized and evaluated. The results of the model suggested, that the area of interest was not widely endangered by nitrate pollution. Within each catchment the critical source areas of nitrate pollution were identified. It was observed that these areas are related with intensive agricultural areas. Nitrate leaching ranged from 6 kg.ha-1 to 10 kg.ha-1 per year in agriculture areas. Some areas exceed this amount. Nitrate loss from most of the area of interest ranged from 0 kg.ha-1 to 4 kg.ha-1 per year. Concentrations of nitrates in modeled...
169	Kulty hor a vod v tradičním Vietnamu / The Mountain and Water Cults in Traditional Vietnam Jirková, Barbora January 2012 (has links) This thesis examines the problem of mountain and water cults in traditional Vietnam, e.g. in the period from 11th to mid 19th century, as seen through primary sources. First the relationship between the state and the supernatural is examined. Then the water and mountain deitties, their cults, and practical aspects of worship are characterized in the general context of Vietnamese religious beliefs. Follows a more detailed study of some of the most important mountain and water cults.
170	Ochrana mezinárodních vodních toků / The protection of international watercourses Janoščíková, Markéta January 2011 (has links) Protection of International Watercourses The purpose of the Thesis is to analyze the present degree of the protection of international watercourses and to describe three main levels: international law, European law and Czech law. Although the issue of environmental protection and sustainable use of international watercourses is considered to be one of the most significant problems of the present society, the topic has been rather neglected by Czech scholars. Analytical, logical and historical methods were primarily applied in the study. The thesis is composed of four chapters, which are furthermore divided into sections and subsections. The term "international watercourses" usually designates rivers, lakes and groundwater sources shared by two or more states. Chapter one deals with international customary law (especially equitable utilization and no harm principle), international treaty law (global and regional cooperation as well as non- binding documents) and selected major cases important for the evolution of protection of water. In the past, international water law concerned mostly with allocating water supply between riparian states. Nowadays the law concentrates more on permissible uses of watercourses and preventing pollution of freshwater resources as well as water ecosystems. The second...

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