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Treatibility of surface water
Fuks, Josef ; Palčík,, Jiří (referee) ; Kučera, Tomáš (advisor)
The aim of the master´s thesis is the topic of the treatability of surface water with the focus on the process of suspension formation. For this work I took water samples from five different places around the Brno Dam which has contended with water quality deterioration for a long period. With these water samples, the series of jar coagulation tests were done with the application of three different commonly used coagulants. In the theoretical part of the master´s thesis I deal with the composition and attributes of surface water and the technology of its treatment. Each process of treatment is briefly described here with the emphasis on the process of suspension formation. The experimental part of the master´s thesis summarizes and presents the results gained through the coagulation tests in the laboratory. I evaluate the influence of different parameters on final effectiveness of water treatment and I try to find an optimal amount of coagulant, pH and speed of fast or slow mixing. Finally I compare the suitability of each coagulant and the influence of the sampling site on the effectiveness of water treatment.
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Study of durability of binders concept on purposeful creation of ettringite
Sokolt, Stanislav ; Štenko,, Miroslav (referee) ; Žižková, Nikol (advisor)
This master thesis is focused on the binary and ternary systems with connective purposeful ettringite formation for fast hardening adhesive for ceramic tiles. It deals with the durability of these materials after exposure to the corrosive environment. It examines the physical and mechanical properties and mineralogy changes after exposure to corrosive environments. Within processing of this paper provides basic information concerning the connective concept of purposeful formation of ettringite.
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Analysis of Coalition Behaviour of Political Parties at the Regional Level
Blížkovský, Radek ; Němec, Jan (advisor) ; Lisa, Aleš (referee)
Need to form a coalition accompanies most of legislative bodies in multi-party systems without directly-elected executive, including party system in the Czech Republic. This thesis analyses coalition building processes and coalitions formed after regional elections in 2000, 2004, 2008 and 2012. Main goal is to identify what factors, trends and party behaviour patterns affects coalitions bargaining and final form of a coalition. Secondary goal is to evaluate the stability and continuity of these factors and trends. In order to achieve these goals, diachronic and synchronous comparative analyses was used together with quantitative method of voting power measurement. Text is divided into four chapters. First chapter is devoted to discussion about American and European approach to the study of theory of coalitions. Two points of view of motivation of political parties to compete in the elections are presented: Office and Policy seeking. Second part of this chapter is focused on multi-level governance with emphasis on specifics of the coalition formation process and relationships between parliamentary and regional systems. Second chapter presents method of voting power indices. In the third chapter regional political system of Czech Republic, its organs, powers and voting system are described. Final chapter contains the analysis of coalitions and coalition bargaining. Chapter is divided into two parts; one focused on coalition formation in particular regions and second analyzes continuous and long-term factors and trends.
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Soil water regime of the artic-alpine tundra of the Giant Mts. region, assessment and modelling
Tesař, Miroslav
This subproject deals with the soil moisture dynamics in the mountainous region of the Krkonoše (Giant) Mts. as a starting point for qualitative studies taking into account the newly developed discontinuous and essentially nonhomogenous approach to the soil water regime character. As precise as possible identification of the accumulation and percolation phases of the soil water regime should be the main result of the soil water regime observation. The attention is also paid: (i) to the study and description of the runoff from a watershed formation taking into account the soil moisture dynamics and storage as an important factor affecting surface runoff formation; (ii) to the determination of the influence of the land-use changes on the soil water regime.
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Evaluation of creation of yield parameters of Kazbek and Saaz Late cultivars
Štefanová, Lucie ; Pulkrábek, Josef (advisor) ; Jaroslav, Jaroslav (referee)
Hops has been grown in Saaz region for 700 years. The first written mention about local hop garden comes from 1348, but it is certain that the hop gardens were owned by brewers and church dignitaries even earlier. First, hops was grown on the monastery grounds on a large scale. Czech, and thus Saaz hops, reached its peak in the 19th century, mainly for its fragrance, color and kontent of lupulin, and became a benchmark for determining the quality and price of hops.
Kazbek is the first variety of "flavour hops" bred in the Czech Republic. Its unique sensory properties were examined with numerous brewing tests in several breweries of different sizes. Breeding of "flavour hops" is a real challenge for hop breeders. The first hop in that category, for example Citra, Amarillo, Simcoe, Bravo, were bred in the United States. Variety Kazbek was obtained by selecting progeny of the hybrid material, which has origins in Russian wild hops. It was registered in 2008 due to high stability and efficiency. Robustness and stability is expressed in the name of the variety, because Kazbek is the highest mountain of the middle Caucasus. From the brewing point of view, it belongs among the bitter types.
Saaz Late variety was obtained by selecting F1 offspring of parental combination of unfinished breeding material that is the origin of Saaz. It has a charakter of late variety. Saaz Late is an aromatic variety for the second and third hopping. Aroma is genuine, fine, hoppy.
The most important quality aspect of hops is alpha acids content. Content of alpha acids has been reagularly assessed since 1981. The evaluation results show, that the alpha acids kontent in varieties Saaz Late and Kazbek is proven statistically different.
Selection of suitable location is the key element for cultivation of hybrid varieties. It is very important to focus on the evaluation of natural conditions of each location. This paper shows that there is no statistically significant difference between locations Stekník and Blšany.
Optimal temperature for growth and subsequent yield formation should not drop below +7 °C in April, +11 °C in May and from June to August should range between +15 and +18 °C. The stability and balance of temperature is also important. Precipitation has a bigger
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impact on yield formation than temperature. This statement was confirmed in 2015, when tropical temperatures and drought during the flowering and cone formation caused significant decrease of yield. Low yield level
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Heat insulating moulded refractory materials
Novotný, Radoslav ; Lang, Karel (referee) ; Raschman,, Pavel (referee) ; Havlica, Jaromír (advisor)
Doctoral thesis is focused on the study, research and development of heat insulating moulded refractory materials. The replacement of shaped instead of unshaped refractories is recently and strongly industrially demanded and belongs to ongoing research topics. With the increasing demand of energy savings, the excellent insulation properties are essential. The insulating properties of castables are the result of targeted porosity formation. The porosity is coming from the controlled air intrusion into material resulted to foamed structure. The foaming process was achieved by mixing of separately prepared aqueous foam into raw castable slurry or by in situ foaming of intensively mixed castable slurry with the surfactant additive. Nevertheless, the study of foam behaviour and the influence of additives on binder hydration and setting processes (i.e. calciumaluminate cement) was substantial for successful preparation of the experimental samples. The two types of the experimental samples were prepared. The first one was based on mixing of kaolin slurry with pre-prepared aqueous foam, whereas the de-aglomeration ability of kaolin specie was utilized to water-particle film formation. In situ foaming of multicomponent system is the second one. The both processes brought some negative attributes, so the optimal properties of prepared castables were achieved by their combination.
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Epigenetické reprogramování u rostlin a živočichů
Tomanová, Markéta
Organisms have to cope almost daily with the activity of transposable elements which can cause negative effects in them thanks to their ability of transposition. The activity of transposons is regulated in normal conditions. From the point of view of their potential harmful activity, the most critical phase is the period of gametes formation and embryogenesis when the process called epigenetic reprogramming occures. It means that the epigenetic information (especially DNA mehylation) is deleted and than re-estabilished which is the esential process for cell diferentiation and tissue formation. During mentioned process of epigenetic reprogramming transposable elements become active which is the reason why this phase of the development is labeled as critical. This happenes especially in critical phases of their development. This work is focused to DNA methylation in transposons which was probably evolved as a sort of defense against their possible harmful effects. Processes wchich occure in reproductive cells are also described. Every mentioned processes are different in plant and animal cells. However, they are similar in some aspects. These are also the subject of this work.
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Radicals formation in supersonic plasma jet
Mašát, Milan ; Tichý, Milan (advisor) ; Glosík, Juraj (referee)
Title: Creation of radicals in electric discharge supersonic plasma jet Author: Milan MaSat Department: Department of Surface and Plasma Science Supervisor: Prof. RNDr. Milan Tichy, DrSc. Supervisor's e-mail address: Milan.Tichy@mff.cuni.cz Abstract: Free radicals are the key intermediates and propagators of chemical reactions in Earth's atmosphere. Study of their structure and chemical properties is vital for understanding the processes in atmosphere. But their high reactivity brings the need for specific research methods. In-situ preparation and non-invasive detection and characterization techniques are needed. Most commonly used laboratory techniques such as photodissociation or electric discharge generate radicals at temperatures that are significantly higher then those under atmospheric conditions, which we intendto model. In this work, I was developing a source of cold radicals and experimental techniques for measuring their properties. 1 combined plasma source, which creates sufficient concentrations of radicals with supersonic expansion in which the translational and internal degrees of freedom are cooled deeply below the room temperature. For their characterization I used high-resolution spectroscopy utilizing near infrared laser diodes. I also developed and built electronic circuits and software...
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Strategic partnership formation in a selected region
Sághy Estélyi, Kristína ; Koráb, Vojtěch (advisor)
This doctoral thesis focuses on creation of strategic partnerships between small and medium enterprises. The purpose of the thesis is to study the attitude of enterprises toward strategic cooperation and to characterize the cooperation of enterprises within strategic partnerships. The research started with collection, evaluation and analyze of secondary data on strategic cooperation. It has been found, that in spite of high number of publications, there is a lack of joint methodology and unified use of the basic notions. Strategic cooperation is becoming a more and more up to date topic in the Czech Republic these days. One of the partial objectives of this thesis is to enrich the knowledge in this field by creation a complex theory. Other part of the research focuses on small and medium enterprises in the South Moravian region. This is connected with the second partial objective which is the analyze of the environment the companies are embedded in. In the framework if this, strong and relatively new, but fast developing branches of economy are distinguished. The creation of strategic partnerships within these branches can be a key issue in the short future. In order to get a more detailed view on attitudes of enterprises toward strategic partnerships and to find out the special features of these relations a primary research has been conducted. Both, qualitative and quantitative methods were applied with an aim to get a more complex overview on the topic. After the analyze of research data, the hypotheses were tested and conclusions and recommendations were formulated. The final part of the thesis emphasises its contribution to the theory, practice, as well as education.
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Kuks and baroque culture in Czech lands
Novobílský, Marek ; Czumalo, Vladimír (advisor) ; Matějů, Martin (referee)
The aim of this study is to outline and illustrate the link between the Kuksian manor and its founder, the great Czech baroque figure count Sporck and his Kuks, as a synthesis of events after the Thirty Year's War. I am convinced that this theme can be considered culturally-historical, as in the introductory chapter we are primarily going to cover the region's formation during the times of baroque Bohemia, the causes and mechanisms of its formation, subsequently we will describe the region's relationship to architecture, and finally we are going approach the spectacular grounds of Kuks itself. In the second part we will turn to count Sporck himself, particularly his background all the way towards his final establishment in Bohemia, where we are going to mention his notable credit to architecture and art, and eventually we will proceed to the issues of Bohemian settings of that time. Another big chapter will cover count Sporck's editorial activities, which were very ostentatious and presumptuous considering the fact that they took place during the difficult era full of censorships and prohibition. It can rightfully so be regarded as outstanding and, with only a few exceptions, unique in its own way. Towards the conclusion we will also outline the development of Sporck's theatrical society, the cooperation...
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