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Characteristic parameters of oxygen-enhanced combustion process
Dřímal, Jiří ; Hudák, Igor (referee) ; Bělohradský, Petr (advisor)
The thesis is focused on the experimental investigation of the oxygen enhanced combustion technology (OEC), which uses the combustion air with higher concentration of oxygen, i.e. more than 21 %. The OEC technology is used in those industrial applications, which requires higher thermal efficiency, increased productivity, improved character of the flame, reduced equipment cost, lower volume of exhaust gases and improved product quality. Although this technology involves a number of advantages, it is appropriate to mention some of its disadvantages such as refractory damage, inconsistent heating, increased pollutant emission or flame disturbance and/or flashback. The combustion tests of OEC were carried out at the burners testing facility that enables to test many types of burners (gaseous, liquid, or combined). The two-staged low-NOx burner fired by natural gas was used during the tests. The observed parameters include the effect of oxygen concentration in the combustion air on the NOx emissions, heat flux into the wall of the combustion chamber, in-flame temperature distribution in the horizontal symmetry plane of the combustion chamber and also the shape and dimensions of the flame. The combustion tests of the air-enrichment, air-oxy/fuel and O 2 lancing OEC methods were carried out at the burner thermal input of 750 kW and air excess of 1,1 for two combustion regimes, namely one-staged and two-staged fuel supply.
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Multi-speed European Union and its impacts on Slovakia
Stanová, Zuzana ; Sršeň, Radim (advisor) ; Dubský, Zbyněk (referee)
Multi-speed European Union is a very up-to-date topic especially in terms of the finance and debt crisis, which deepened the differences between member states' economies. Multi-speed integration is one of the ways how to satisfy the claims of all member states, respect their different socioeconomic conditions and interests and at the same time not to disturb the integration process. The objective of this thesis is to introduce the concept of multi-speed integration from different theoretical points of view, to outline its historical development and assess its positive and negative impacts on the EU as a whole and on Slovakia. The analysis of impacts of the Economic and Monetary Union's multi-speed character on Slovakia is the key part of this thesis. These impacts on Slovakia are both positive and negative, but some of them cannot be categorized in general. In the aggregate the positive impacts prevail.
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Metodika pro výběr a nasazení CASE nástrojů
Hradecká, Petra ; Prof. Ing. Václav Repa, CSc. (advisor)
The goal of this master’s thesis is to develop a methodology for CASE tool selection. This work consists of two parts. The first part is about software engineering, methodologies for IS development and its categorization, CASE tools and meta-modeling. The rest of the part is about methodological framework and current situation on the CASE tools market. The second part contains the methodology for selection of CASE tool. It is an open methodology and it offers a set of recommendations and procedures that are derived from best practices gathered from available resources and other similar methodologies. The main idea of this work is to devise a methodology for the CASE tools selection. The selection process is divided into several different segments that are analyzed in detail. The methodology distinguishes between both situations when the company either owns an existing CASE technology or it does not use CASE technology yet. The methodology suggests intensive internal communication during the selection and emphasizes the involvement of future users in the process. It is important to increase chance for smooth implementation and successful acceptance of the CASE in the company. The importance of considering differences in structure, character and the scope of projects, requirements for project management and maturity level of processes during the CASE tool selection process is highlighted.
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Exercise of the principles of a medical and physical education in kindergarten
Jiránková, Alžběta ; Dvořáková, Hana (referee) ; Hronzová, Marie (advisor)
Bachelor thesis familiarizes with possibilities of a healthy and preventive exercises in kindergartens. In the theoretic part are summarized all important topics relating to a medical and physical education in kindergarten. The practical part is addressing the fulfilling of a training project in surroundings of kindergarten and testing of the children before and after training project. The training project contains 7 particular elements of a medically preventive character.
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Variabilityin egg shell pigmentation of great tit clutches
Kratochvílová, Anna ; Svobodová, Jana (advisor) ; Veronika, Veronika (referee)
Eggshell coloration in bird clutches shows a striking variability within species which has not yet been fully explained. Its character is determined by the deposition of two main pigments: blue-green biliverdin is responsible for the background colour while brown-red protoporphyrin is associated with the dark spot pattern. Considering the role and matabolism of these two pigments in the avian organism it was suggested that they might have an important impact on the oxidative stress levels and their deposition into the eggshell is therefore suggested to possibly reflect the body condition of laying females during the laying periods. This is also the basic assumption for the signalling hypothesis of eggshell coloration which predicts the eggshell appearance to reflect the female body condition and individual health status or directly indicate aenemia in birds (aenemic hypothesis). Here it was tested whether there is a relationship between parameters representing the body condition of female great tits (Parus major) and the characteristics of protoporphyrin maculation of their eggs. Female body condition was expressed by standardized body weight and the selected haematological parameters (heterophil to lymphocyte ratio and relative immature erythrocyte counts). Eggshell coloration was characterized by spot colour (hue, saturation and brightness), spot counts and the reflectance of the background colour. It was found that females with higher heterophil to lymphocyte ratio laid eggs with more spots and higher reflectance of the background colour in some nesting seasons. Eggs with more spots on its surface were also laid by females with higher immature erythrocyte counts. These results suggest that more intensive deposition of protoporfyring into the eggsell can indicate worse body condition of the laying females. On the other hand, it was also found that heavier females laid eggs with lower reflectance of the background colour. Despite this discrepancy, these results are not inconsistent with the pressumptions of the signalling hypothesis and they partially support the aenemia hypothesis. However, the above mentioned dependencies were inconsistent among the nesting seasons, indicating that further important determinants must be considered in the avian eggshell coloration.
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The territorial ambitions of Czech politics in the context of World War I
Bodláková, Nina ; Doubek, Vratislav (advisor) ; Hájková, Dagmar (referee)
The thesis is focused towards analyzing concepts of territorial demarcation of the Czech lands-state which where introduced during World War I by Czech politics and finally pursued through during the Paris Peace Conference. In the period of war the focus is towards constitutional concepts of the Czech official political representation and from the side of anti - austrian Czech political resistance towards constitutional concepts of the resistance circle of Karel Kramář and the resistance circle of Tomáš Garrigue Masaryk. The goal of the thesis is to summarize and evaluate different arguments of historical-political, economical or socio- cultural character benefiting maximal territorial gain. The hypothesis is that the arguments based on historical law dominated throughout.
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The Aspirations and Ascent of George Washington in the Context of His Times: From His Early Years to the End of the Revolutionary War
Sýkora, Stanislav ; Raková, Svatava (advisor) ; Calda, Miloš (referee) ; Kovář, Martin (referee)
George Washington's relatively obscure beginnings did not preclude him from admiring and acquainting himself with chivalrous role models and genteel guidelines. Longing for recognition, Washington sought opportunities to serve his influential patrons to merit their further approbation. The dissertation sets Washington's aspirations in the context of honor-based sociocultural milieu of his day and thus provides the reader with an insight into the conventional aspects of his ascent to the upper echelons of the colonial society of Virginia. At the time of the Revolution, Washington's military reputation, leadership, and admirable character earned him a unanimous election to the chief command of the American armies. The complexity of Washington's venture of accepting, exercising, and ultimately resigning the supreme military powers in relation to his reputation and sense of patriotic duty is thoroughly analyzed. Key words: George Washington, convention, ascent, ambition, patriotism, virtue
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Skupina 42 and Chicago Renaissance - Kolář, Sandburg, Masters (1914-1948)
Vondřichová, Anna ; Šrámek, Petr (advisor) ; Holý, Jiří (referee)
This text is concerned with the connections between the Chicago Renaissance movement and the Czech post-war Skupina 42 (Group 42). Not being a fixed programme, Chicago Rennaisance covers not only the work of its major representatives - Carl Sandburg, Edgar Lee Masters and Vachel Lindsay, but also the general cultural atmosphere around the time of the First World War in the American Middle West. Although there are considerable timespace differences, the poetics of the particular poets and Skupina 42 members (especially Jiří Kolář) have much in common. Primarily, it is the effort to define a newly developing city as well as an individual's role in a human community. The complexity of this community requires adequate forms of poetic expression, which is in both cases performed by the use of everyday speech and free verse, depicting aptly social, ethnic and individual variability. Moreover, the imperfection and at the same time beauty of the common speech offer a fitting parallel to the character of the city as a whole.
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Tradition of purism in Croatian linguistics
Vlašić, Marija ; Gladkova, Hana (advisor) ; Dudok, Miroslav (referee) ; Šurla, Andrej (referee)
The main topic of the doctor's thesis is tradition of purism in Croatian linguistics, i.e. the development of Croatian language from the point of view of the thesis of purism as a constant in Croatian langauge. The focus is placed by the author on the role of Croatian linguistics in building such a traditional image. The thesis furthermore explains motives and perspectives of the mentioned tendency. The thesis questions the role of purist principles in the construction of language identity and analyzes long-term consequences of this tendency in Croatian linguistics. The introductory chapter gives an overview of theoretic opinions on the term of purism and current ideas of the recent socio-linguistics and furthermore explains the position of Croatian linguistics on the level of purism of Croatian language. Puristic tendency of Croatian language is in Croatian linguistics considered analogue to the language development. Therefore, purism is a very important element of identification built into the character itself of Croatian language. The view onto Croatian linguistic history is narrowed in the second part of the thesis, in which the author analyzes the materials, in which elements of implicit and explicit purism are to be seen (from pre-standard era, beginning of standardisation and particularly the...
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