The main objective of this thesis is the analysis and comprehensive review of agricultural tires designed for agricultural tractors highest performance class. Another part deals with the description and evaluation of major parameters for calculating the contact surfaces of tires with respect to an individual combination of inflation pressures and loads. The first part was prepared by literature review. Followed by laboratory testing focused mainly on determining the tire contact area with respect to an individual combination of inflation pressures and loads. The first part of the testing procedure was aimed at verifying the functionality and accuracy of the Plantograf. The second part of the test procedure included the estimate of the relationship between the wheel load and pressure distribution in the contact area of the tread of the tire under static loading. The last part of the test procedure consists in comparison of static and dynamic load tires. The measured and calculated values were processed into the relevant tables and graphs.

Tato práce se zabývá analýzou trhu kontaktních čoček v České republice, vyhodnocením procesu zavádění kontaktních čoček privátní značky společnosti FOKUS optik na trh a dále upozorňuje na faktory, které negativně nebo pozitivně ovlivnily celkové výsledky tohoto procesu. Na základě zjištěných skutečností je formulován optimální postup při vytváření marketingové strategie pro zavádění kontaktních čoček privátní značky na trh v České republice.

Pesticide products used for plant protection are one of the chemicals that are intentionally brought into the environment. In Czech Republic there are legally used only those pesticide products, which are registered by SRS (State Phytosanitary Administration). For registration of these products there is required in addition to assessing the likely negative effects on human and animal health, also information whether the pesticide products negatively not affect the environment, in particular avoiding the contamination of aqua system or not effect the non target organisms. This master's thesis discuss the use of organism Eisenia foetida (redworm) in the contact ecotoxicity tests by testing pesticide products. There were selected such pesticide products where there are not solid information about their impact on non-target soil organism (Eisenia foetida) and based on literature research was chosen ecotoxicity test by OECD 207 method, the acute toxicity test which is in place for 14 days. Two pesticide products Topsin M 500 SC (active ingredient thiophanate-methyl) and Perfekthion (active ingredient dimethoate) were tested. Ecotoxicological values were calculated and ecotoxicity of such peticide products for soil organism were avaulated.

This thesis was focused on solid wood surface treatments. The goal of the thesis was to achieve superhydrophobic behavior of solid wood surface and its application on furniture design – bathroom furniture. In the first part of experiment the thesis dealt with plasma discharge surface treatment of 3 different wood species – larch (Larix decidua), oak (Quercus robur) and pine (Pinus sylvestris). These treatments were performed in atmospheric and inert (nitrogen) environment with different time of treatment. Effect of plasma discharge was evaluated by contact angle measurement. The second part of the experiment was focused on wax deposition on wooden samples with different roughness. The wax n-hexatriacontane is naturally found as a component of wax blends on the surface of plant leaves. The deposition was performed by physical evaporation in vacuum. This wax has a self-assembly ability, e.g. it creates 3D objects on the surfaces after deposition. The dependence of roughness on self-assembly and wettability in time were examined. Self-assembly ability was observed with scanning electron microscopy and confocal microscopy. Plasmatic treatment hasn´t led to increased hydrophobicity, nevertheless, a significant increase of hydrophilicity was observed during contact angle measurement which could be used as a preparation for surface coating. Surface treatment with wax has led to significant increase of hydrophobicity. Samples of larch and oak achieved superhydrophobic surface behavior (CA > 150°) and pine samples achieved highly hydrophobic behavior (CA > 140°).

The research dealt with the possibility of using hay for the production of large-area material. Boards with a density of 630 ± 30 kg/m3 and thickness of 12 mm were pressed from the hay. The boards were made of hay fractions and whole hay straws. Due to the presence of a water repellent waxy coating of the surface layers of the hay straws, the hay was soaked in NaOH solution to disrupt the coating and increase the surface wettability for the water-based adhesives. The soaking was carried out with different temperatures, time, and concentrations. Depending on the measurements of the contact angle of the water drop on the hay surface, a 5% NaOH solution was selected. The FR 15 and FR 60 boards were made from a hay fraction soaked at the temperature 20 ° C for 15 minutes and 60 minutes. A reference board FR REF was produced in the same way without chemical treatment. For comparing the boards' properties, several boards were produced: a DTD ST board was made of wood chips used for the central layers of boards made by the Kronospan company; a board NE REF, produced from the whole hay straws without any chemical treatment; a board NE 15, which was made out of hay undergone 15 minutes long treatment at 20 °C. UF resin (Kronores CB 1637), which is used for bonding of the core layers of particle boards, was used as the adhesive. The results have shown that the wettability of the straw surface can be improved by the chemical treatment by almost 50% compared to the hay without treatment. The contact angle values of the hay without the chemical treatment were 92,2 °. In hay soaked in NaOH solution, the contact angle decrease to 45 °. However, the hay treated this way wasn't suitable for board production due to its significant degradation. The hay used for boards FR 15 and FR 60 had values of 63 and 62, 9 ° accordingly, which were similar to those measured on the wood surface (64 °). Properties of the produced samples were tested according to ČSN EN standards. In bending tests, boards made from hay fractions with chemical treatment reached better results at MOR compared to the reference boards (the board FR 15 - 4,5 MPa, the board FR 60 - 5 MPa, and the board FR REF - 1,3 MPa). As for the modulus of elasticity MOE, the board FR 15 reached 1710 MPa, the board FR 60 - 1703 MPa, and the board FR REF - 651 MPa. After 24 hours, the following swelling values were indicated: FR REF - 23,2 %, FR 15 - 26,6 % a FR 60 - 17,1 %. After soaking in water for 48 hours, the FR REF fraction board had shown a swelling value of 60,5 %. The boards FR 15 and FR 60 from chemically modified hay have achieved better results of 42 and 47,2 % accordingly.

This master thesis deals with influence of topography of friction surfaces on rolling contact fatigue. This influence is examined by newly reconstructed R-MAT station, whose reconstruction and fully report about it, is part of this master thesis. Influence is examined on area with higher surface's roughness which it wasn't examined before. Further research is made on area of surfaces with topographical modification with higher surface's roughness.

This thesis focuses on attitudes of the majority population against immigrants on the national level. In selected countries of the European Union, these attitudes are analysed with the goal of confirming causality between heterogeneous make-up of the population (in terms of proportion of foreign-born residents in the population) and the degree of xenophobia of the majority population. The work is based on the concept of contact hypothesis and assumes that the larger the relative size of the population of foreign-born residents is, the more positive the attitudes of the majority population are. Attitudes of the majority populations are studied on two levels. First, through the opinions of the European Social Survey 2014 respondents, and second, by the election results of populist radical right-wing parties, which are typically associated with firm anti-immigrant policies. While the levels of xenophobia expressed by the ESS respondents partially fits the expected model, the connection between results of relevant political parties and the percentage of foreign-born residents in the population was not proven. The contradictory results of both analyses are attributed to a so-called "modern racism". Keywords: xenophobia, immigration, radical right, contact hypothesis, Europe

Budování kontaktního centra je velmi rozsáhlou a komplexní problematikou. Tato diplomová práce se zaměřuje na aspekt efektivního využití dostupných technologií pro podporu procesů kontaktního centra (CC), především pak v bankovním sektoru. V práci je zpracován multidimenzionální model obslužnosti kontaktního centra zachycující procesní stránku řízení. Model obslužnosti je poté zasazen do kontextu současných technologií pro CC a výsledkem je model, který zachycuje vliv jednotlivých technologií na proces řízení interakcí. Tento model je v závěru teoretické části aplikován na podmínky bankovnictví. Součástí diplomové práce je i praktická (neveřejná) část, která aplikuje předchozí model na podmínky kontaktního centra společností GE Money v ČR a SR. Do kontextu modelu je zasazen vývoj kontaktního centra GE Money po vybrané období, začínající před zahájením a končící dokončením několika projektů, které byly během zpracování této práce ve fázi realizace. Tato konfrontace CC GE Money s modelem je pak výchozím bodem pro doporučení dalších kroků v budování a rozvoji tohoto CC.

The introduction of the thesis consists of a review of literature about thermal modification of wood. More precisely, the author presents history, possible ways of treatments and the impacts on the treated material from the point of view of chemical, physical and mechanical changes. The introduction of the thesis describes the main subject of the research European Beech (Fagus sylvatica L.). The practical part of the work focuses on a contact high-temperature treatment of the samples. It is intended to achieve in the cross-section uneven modification. The treated samples were chemically analyzed. Finally, the results are evaluated and discussed.

Counselling centres are facilities that provide services especially to problematic drug users. To achieve the highest possible effectiveness it is necessary to include also social surroundings (parents, partners or school) of the problematic drug user into the overall treatment. The fundamental prerequisite of existence of these centres is their accessibility without booking in advance and without waiting times for everyone who needs to deal with his or her emergency situation immediately. That is why these centres are called mentally and socially barrier-free, so called low-threshold facilities. I have chosen the qualitative method to conduct the research. As a technique for data gathering I selected secondary data analysis and semi-structured interviews with drug users who visit counselling centres. For the research I used data from annual reports from counselling centres in Písek and České Budějovice. The results of my research could be useful for workers in helping professions, for workers dealing with the issue of illegal drug abuse, to improve the effectiveness of services in the counselling centres or as groundwork for further research or training.