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The study of water quality in springs and wells in Křivoklátsko area.
Brabenec, Tomáš ; Benešová, Libuše (advisor) ; Popovský, Jiří (referee)
At present, the nature around us is constantly being polluted by anthropogenic activities; therefore the quality of all components of the environment, including water must be monitored. This thesis examines mainly the water quality in selected springs and wells in the Protected Landscape Area of Křivoklátsko. For individual wells is shown in what environment they are and even some history. Several locations were tipped off where water sampling was carried out, and in the laboratory the basic physico-chemical parameters were defined. In conclusion of this thesis, are the individual wells and springs included in water quality classes according to CSN 75 7221. It is shown that monitored parameters have exceeded limits and whether the water in a well and spring is drinking or not.
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Influence of compounds produced by cyanobacteria on coagulation of humic waters
Brabenec, Tomáš ; Pivokonský, Martin (advisor) ; Benešová, Libuše (referee)
The diploma thesis investigates the coagulation of nature waters with humic substances and peptides/proteins produced by Microcystis aeruginosa during water treatment process with aluminum coagulants. It was confirmed that the efficiency of coagulation mechanism of humic substances and peptides/proteins strongly depends on the pH value, because pH value is limited factor of a charge properties of peptides/proteins, humic substances and hyrolysis products of coagulants. The optimal pH range for the coagulation of humic substances was 5- 6 and for cyanobacterial peptides/proteins 5-6.5. In both cases a charge neutralisation and an adsorption were dominant mechanism of coagulation. Optimal pH range for the coagulation of humic substances in the presence of cyanobacterial peptides/proteins was identical as well as optimal pH range of humic substances with absence of peptides/proteins (5-6) but the presence of peptides/proteins positively influenced particle coagulation of humic substances, because the optimal concentration of the coagulants decreased to more than half. An interaction between humic substances and peptides/proteins was demonstrated. A positive effect of coagulation was observed in the case of jar tests with absence of coagulants at a very low pH range (<4). Keywords Humic substances; AOM...
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Depth of variance matrices
Brabenec, Tomáš ; Nagy, Stanislav (advisor) ; Hlubinka, Daniel (referee)
The scatter halfspace depth is a quite recently established concept which extends the idea of the location halfspace depth for positive definite matrices. It provides an interest- ing insight into the problem of suitability quantification of a matrix for the description of the covariance structure of the multivariate distribution. The thesis focuses on the investigation of theoretical properties of the depth for both general and more specific probability distributions which can be used for data analysis. It turns out that the es- timators of scatter parameters based on the empirical scatter depth are quite effective even under relatively weak assumptions. These estimators are useful especially for dealing with a sample containing outliers or contaminating observations. 1
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Boxplot for multivariate data
Brabenec, Tomáš ; Nagy, Stanislav (advisor) ; Hlávka, Zdeněk (referee)
We will introduce three methods of extension of the classical Tukey's Boxplot for multivariate data. These are the Rangefinder, the Relplot and the Bagplot. To implement the methods, we will need the notions like Mahalanobis distance, elliptically symmetric distributions and halfspace depth. A big part of the thesis is focused on the construction of the Relplot and the Bagplot. We will also discuss, how do these methods detect outliers and what are their advantages and disadvantages. This work contains many examples and illustrating images. 1
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Valuation of AVG Technologies CZ, s.r.o. and process of acquisition
Milotová, Aneta ; Brabenec, Tomáš (advisor) ; Novotný, Jakub (referee)
This Diploma thesis "Valuation of AVG Technologies CZ, s.r.o. and process of acquisition" is formed as an expert opinion. The goal of this thesis is to find a market value for the needs as at 1 January 2016. Valuation of company is compiled mostly from public available data. As a main valuation method was used DFC entity. The thesis consists of complex strategic analysis, the financial analysis, value drivers, financial plan and a final valuation.
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Valuation of the company ČEPRO, a.s.
Trefil, Tomáš ; Brabenec, Tomáš (advisor) ; Leja, Marek (referee)
Purpose of this masters thesis is a valuation of ČEPRO, a.s., which provides mainly transportation, warehousing and sale of crude oil products. DCF Equity was used as a main income valuation method and as a supporting method was chosen the comparable approach using multiples. The thesis comprises also financial analysis, strategic analysis, analysis of value drivers and financial plan.
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Valuation of the company Groupe SEB ČR s.r.o.
Kratochvíl, Bohumil ; Brabenec, Tomáš (advisor) ; Čižmárová, Dušana (referee)
The main goal of this thesis is to determine the market value of the company Groupe SEB ČR s.r.o. for purpose of selling to protentional buyer at 1.1.2016. The thesis consists of six chapters which correspond to basic business valuation structure. The first part determines basic information about the valued company. The next chapter is followed up with the financial analysis that verifies going concern assumption. Next chapter is strategic analysis, which results with sales prognosis of the company. After strategic analysis was set up prognosis of value generators and making the financial plan. The final part of the thesis was dedicated to business valuation by using DCF Entity method in three variant scenarios. As a secondary valuation method was chosen market comparison method.
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Influence of compounds produced by cyanobacteria on coagulation of humic waters
Brabenec, Tomáš ; Pivokonský, Martin (advisor) ; Benešová, Libuše (referee)
The diploma thesis investigates the coagulation of nature waters with humic substances and peptides/proteins produced by Microcystis aeruginosa during water treatment process with aluminum coagulants. It was confirmed that the efficiency of coagulation mechanism of humic substances and peptides/proteins strongly depends on the pH value, because pH value is limited factor of a charge properties of peptides/proteins, humic substances and hyrolysis products of coagulants. The optimal pH range for the coagulation of humic substances was 5- 6 and for cyanobacterial peptides/proteins 5-6.5. In both cases a charge neutralisation and an adsorption were dominant mechanism of coagulation. Optimal pH range for the coagulation of humic substances in the presence of cyanobacterial peptides/proteins was identical as well as optimal pH range of humic substances with absence of peptides/proteins (5-6) but the presence of peptides/proteins positively influenced particle coagulation of humic substances, because the optimal concentration of the coagulants decreased to more than half. An interaction between humic substances and peptides/proteins was demonstrated. A positive effect of coagulation was observed in the case of jar tests with absence of coagulants at a very low pH range (<4). Keywords Humic substances; AOM...
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Spanish development cooperation and development education implemented by nongovernmental nonprofit organizations in Valencia
Brabenec, Tomáš ; Moree, Dana (advisor) ; Vávra, Martin (referee)
The present thesis tries to Czech readers familiar with the concepts of development cooperation and development education in Spain, focusing on the practical implementation of development education by NGOs in Valencia. In the theoretical part are gradually presented the basic historical and political bases of both concepts and the reader is acquainted with the institutional prerequisites for their implementation in Spain. The empirical part contains the results of the analysis of interviews with representatives of NGOs in Valencia, which realize the practical development educational activities in elementary and secondary schools. The text is supplemented with illustrative graphs and tables, and includes examples of typical responses of respondents which contribute to the understanding and interpretation of the text. The final section includes a discussion of applied research methods and critical evaluation of the results that were presented in the empirical part.
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The study of water quality in springs and wells in Křivoklátsko area.
Brabenec, Tomáš ; Benešová, Libuše (advisor) ; Popovský, Jiří (referee)
At present, the nature around us is constantly being polluted by anthropogenic activities; therefore the quality of all components of the environment, including water must be monitored. This thesis examines mainly the water quality in selected springs and wells in the Protected Landscape Area of Křivoklátsko. For individual wells is shown in what environment they are and even some history. Several locations were tipped off where water sampling was carried out, and in the laboratory the basic physico-chemical parameters were defined. In conclusion of this thesis, are the individual wells and springs included in water quality classes according to CSN 75 7221. It is shown that monitored parameters have exceeded limits and whether the water in a well and spring is drinking or not.
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