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Systém pro vektorizaci rastrových obrázků
Klíma, Jan ; Kopecký, Michal (referee) ; Skopal, Tomáš (advisor)
The task of shape extraction is very complex and hasn't yet been satisfactorily solved. Although there exist lots of algorithms for shape extraction, the mere knowledge of such techniques doesn't give us an answer what methods should be used and how to combine them in order to obtain robust extraction method. This thesis is devoted to creating a component system for image vectorization, which is designed to allow easy configuration of shape extraction data-flows. The system's description is followed by a component catalogue that offers basic algorithms for image processing, vectorization and vector output handling. Component configurations as well as typical network scenarios are covered briefly. The proposed system is then compared to similar applications.
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Reclamation of land affected by mining and possible integration into project of comprehensive land arrangement
MATOUŠKOVÁ, Jana
This thesis deals with issue of landscape restoration of derelict area after extraction of minerals, especially how methods of extraction affect reclamation, individual methods of reclamations, reclamation specification after gravel extraction and integration possibility of reclaimed areas to territorial systems of ecological stability through land arrangements. There is also mentioned alternative reclamation, which is nowadays often mentioned by conservationists namely ecological restoration by spontanous (or managed) succession or by management interventions. Thesis also contains description of sandpit Horusice and evaluation of reclamation which there were performed.
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The Internet and private international law
Machová, Daniela ; Pauknerová, Monika (advisor) ; Brodec, Jan (referee)
64 RESUMÉ THE INTERNET AND PRIVATE INTERNATIONAL LAW This thesis focuses on the connection of the Internet and Private International Law. Its aim is to make it easier to find a way in both old and new legal regulations concerned with this area of law and consider the possibilities of current legislation, and its use for the Internet relations. For better orientation and understanding the topic, I am starting with the outline of the Internet as a unique communication device, which thanks to its special features such as borders ignoring, and instant actions and reactions, enables to engage in relationships - not only business ones - all around the world. These interactions are seen as relationships of private law with a cross-border element. After the introduction of the most important terms, the basics of Private International Law follow along with an extract from its sources, which influence the Internet territory. I would like to point out the significance of international and European level of regulation. The EU-law especially ensures through the harmonization of basic structures of the IT-law that the object statutes of the Member States are almost identical. This increases the legal certainty significantly and therefore helps the evolution of new e- relationships and the whole discipline. The Community...
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The proposal of vinegar farm with the character of functional foods.
HRDINOVÁ, Vendula
The work is focused on the development of a new functional food . The functional food in addition to nutrient sources must clearly contribute to the health improvement thanks to another ingredient which must be of natural origin. I chose vinegar as the basic component in my work. The vinegar can be made in a vinegar manufacturer through classical oxidation technique of diluted ethanol solution by acetic bacteria on the large contact surface with air alcohol analysis . Diluted ethanol may well serve as alcohol analysis, but I used some weak cider. I prepared the cider from alcoholic fermentation of apple pulp waste extraction after its pressing. The cider was pressed together with water. Red onion extracts, as a rich source of flavonoids, work as metraceutikum and give this vinegar the
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Nonlinear Trend Modeling in the Analysis of Categorical Data
Kalina, Jan
This paper studies various approaches to testing trend in the context of categorical data. While the linear trend is far more popular in econometric applications, a nonlinear modeling of the trend allows a more subtle information extraction from real data, especially if the linearity of the trend cannot be expected and verified by hypothesis testing. We exploit the exact unconditional approach to propose alternative versions of some trend tests. One of them is the test of relaxed trend (Liu, 1998), who proposed a generalization of the classical Cochran- Armitage test of linear trend. A numerical example on real data reveals the advantages of the test of relaxed trend compared to the classical test of linear trend. Further, we propose an exact unconditional test also for modeling association between an ordinal response and nominal regressor. Further, we propose a robust estimator of parameters in the logistic regression model, which is based on implicit weighting of individual observations. We assess the breakdown point of the newly proposed robust estimator.
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Expression of estrogen receptor beta (ERβ) In murine male reproductive tract and sperm
Dostálová, Pavla ; Děd, Lukáš ; Dorosh, Andriy ; Elzeinová, Fatima ; Pěknicová, Jana
Estrogens are steroid hormones that play an important role in reproduction of both sexes. In male, the main source of estrogens are testes where both somatic and germ cells are responsible for testosteron conversion to estrogens. Estrogens are involved in control of spermatogenesis, fluid reabsorption in rete testis and epididymis, and in later maturation steps that sperm undergo in female genital tract (capacitation, acrosome reaction). Generally, estrogen action is mediated through binding to estrogen receptors (ERs) which than lead to classical genomic or rapid non-genomic signaling. Nowadays, two classical estrogen receptors are known – ERα and ERβ. ERβ is a predominant variant in testes, while ERα is more abundant in rete testis and initial segment of epididymis. In addition to classical ERs, several splice variants that can differ in their ligand- or DNA-binding properties were detected in different tissues and cell lines. ERs mostly work as a dimer (homo- and hetero-) and splice variants often „only“ modulate function of classical full-length ERs. Therefore, estrogen action seems to be a very complex. To contribute to understanding of estrogen action in male, we detected ERβ and its potential splice variants in mice testis, epididymis and sperm. According to our results, two variants are present in all analysed tissues and cells. These variants differ in one exon in ligand binding domain which leads to different affinity for estrogens. To analyse these variants also at a protein level, we prepared specific monoclonal antibodies recognizing particular variant of ERβ. Both atibodies detected band(s) in protein extracts from testes or epididymis. Taking together, there are at least two variants of ERβ in mice testes, epididymis and sperm and it seems that both variants are similar in abundance within the same organ or sperm.
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Neural Network Based Edge Detection
Janda, Miloš ; Žák, Pavel (referee) ; Švub, Miroslav (advisor)
Aim of this thesis is description of neural network based edge detection methods that are substitute for classic methods of detection using edge operators. First chapters generally discussed the issues of image processing, edge detection and neural networks. The objective of the main part is to show process of generating synthetic images, extracting training datasets and discussing variants of suitable topologies of neural networks for purpose of edge detection. The last part of the thesis is dedicated to evaluating and measuring accuracy values of neural network.
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Study of Interactions between Phenol Red and Cotionic Tensides Using Spectral Methods I.
Belatková, Petra ; Kubíček, Vladimír (advisor) ; Lázníčková, Alice (referee)
Charles University in Prague, Faculty of Pharmacy in Hradec Králové Department of Biophysics and Physical Chemistry Candidate Mgr. Petra Belatková Consultant Ing. Vladimír Kubíček, CSc. Title of Thesis Study of interactions between phenol red and cationic tensides with using spectral methods I This diploma thesis deals with study of interactions between organic dye phenol red and tensides cetyltrimethylamoniumbromide, benzethoniumchloride, cetylpyridiniumchloride and carbethopendeciniumbromide with using fluorimetry with polarized light. In addition, in the case of the last two surfactants the interactions were studied by using extraction photometry, UV-VIS spectrofotometry and classic spectrofluorimetry. The obtained results show that premicellar aggregates, containing both the dye and the tenside species, are formed in the studied solutions due to the significant mutual interaction of both species.
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