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Castables with Inorganic Nanofibers
Zogata, Stanislav ; Keršnerová,, Lucie (referee) ; Sokolář, Radomír (advisor)
This work deals with the use of inorganic nanofibers in refractory castables. The thesis describes some of the results of previously conducted research on nanofibers. Also description of nanofibres, production and distribution. The experimental part is focused on studying the interaction of Al2O3 and SiO2 nanofibres with aluminate cement. The main subject of investigation is a dispersion of nanofibers using a surfactant and ultrasonication.
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Events and Places Agregation and Suggestions from Facebook
Dubeň, Matej ; Plchot, Oldřich (referee) ; Szőke, Igor (advisor)
The aim of this bachelor thesis is to explain the design and implementation of an Android application "Let's Go Out", which can recommend Facebook events and places to the user. The recommendation is carried out by using the hybrid recommending system approach that links together the collaborative filtering and a content-based recommendation approach, tracks the user's interaction with the application and, based on recorded data, adapts to the recommendation process. This thesis also describes the testing process that compares the recommender systems of competitive applications and points out achievements.
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Podmíněný Účinek Institucí na Hospodářský Růst: liší se systematicky úroveň institucí se stupněm hospodářského rozvoje?
Shvechikov, Ivan ; Klosová, Anna (advisor) ; Taušer, Josef (referee)
The institutional quality concept, advanced by academic literature as a mean to enhance output growth, suffer from the absence of a clear implementation strategy. Considering that developing countries usually lack resources to be able to afford large-scale universal institutional reforms, the lack of roadmap puts substantial obstacles to practical application of the given concept. This thesis therefore goes beyond the simple statement of institutional primacy and sets an objective to differentiate the institutional effects relative to the level of development. To test it empirically, fixed effects model is chosen and interaction terms between the measures of institutional quality and the share of middle class are employed. Obtained coefficients indicate that institutions promote economic growth only when middle class share exceeds 25%. At the same time, different aspects of institutional quality exhibit contradictory dynamics. The control of corruption becomes growth enhancing only when middle class constitutes over one third of the population, while the relevance of government effectiveness for economic growth on the contrary decreases with the enlargement of middle class. These findings confirm the presence of conditionality and deny the existence of universal recipe for institutional reforms. Implementation of better institutions based on context-specific approach would therefore bring greater results in terms of economic growth than the direct adoption of best-practice institutions, so intensively advanced by the World Bank and the IMF.
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New Approaches in Numerical Aeroelasticity Applied in Aerodynamic Optimization of Elastic Wing
Navrátil, Jan ; Slavík, Svatomír (referee) ; Komárek,, Martin (referee) ; Hlinka, Jiří (advisor)
Aeroelasticita je nezbytná vědní disciplína zahrnuta do návrhu letounů. Zaměřuje se na předpovídání jevů, které vznikají vlivem interakce aerodynamických, elastických a setrvačných sil. Tyto jevy často vedou ke katastrofickým následkům, proto musí být prokázáno, že nevzniknou v rozsahu rychlostí ohraničujících letovou obálku. Aplikace moderních materiálů při konstrukci draku, spolu se snahou navrhnout aerodynamicky efektivní tvar křídel, vede ke zvyšování poddajnosti letounů. To má za následek změnu aerodynamických vlastností a také k výraznějšímu vliv na aeroelastické jevy, které mohou být vyvolány snadněji vlivem pohybů tuhého tělesa než v případě tužších konstrukcí. Aeroelastické jevy mohou vznikat v širokém rozsahu rychlostí zahrnujícím i transsonickou oblast. V této oblasti je ovlivněna zejména rychlost, při níž dochází k třepetání, a to vlivem nelineárních jevů v proudu. Běžné nástroje, které jsou založeny na lineárních teoriích, nejsou schopny tyto nelineární jevy popsat. Cílem práce je proto navrhnout, implementovat a otestovat nástroj pro výpočetní (numerickou) simulaci aeroelasticity. Nástroj má využívat řešič proudového pole, který je schopen předpovědět nelineární jevy. V práci je kladen důraz na simulaci statické aeroelasticity. V práci jsou popsány metody, které je nutno zahrnout do numerické simulace statické aeroelasticity. Dále je popsán vlastní nástroj a je provedeno zhodnocení konvergence statických aeroelastických výpočtů. Funkčnost nástroje byla ověřena na příkladech, kdy byly použity různé aerodynamické a strukturální modely. Nástroj byl také aplikován při aerodynamické tvarové optimalizaci poddajného křídla. Výsledky optimalizace a její výpočetní náročnost byly porovnány s případem optimalizace tuhého křídla. Na závěr je v práci prezentován příspěvek autora do výzkumu zaměřeného na zhodnocení vlivu časové synchronizace mezi CFD a CSM řešiči. Použitý testovací případ je transsonické obtékání křídla na začátku třepetání (flutteru). Výsledky byly srovnány s experimentálními daty poskytnutými NASA.
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Interdoménové a intradoménové interakce u motorové podjednotky EcoR124I: Výpočetní studie
SINHA, Dhiraj
EcoR124I is a Type I restrictionmodification (RM) enzyme and as such forms multifunctional pentameric complexes with DNA cleavage and ATP-dependent DNA translocation activities located on the motor subunit HsdR. When non-methylated invading DNA is recognized by the complex, two HsdR endonuclease/motor subunits start to translocate dsDNA without strand separation activity up to thousands base pairs towards the stationary enzyme while consuming ~1 molecule of ATP per base pair advanced. Whenever translocation is stalled the HsdR subunits cleave the dsDNA nonspecifically far from recognition site. The X-ray crystal structure of HsdR of EcoR124I bound to ATP gave a first insight of structural/functional correlation in the HsdR subunit. The four domains within the subunit were found to be in a square planer arrangement. Computational modeling including molecular dynamics in combination with crystallography, point mutations, in vivo and in vitro assays reveals how interactions between these four domains contribute to ATP-dependent DNA translocation, DNA cleavage or inter-domain communication between the translocase and endonuclease activities.
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The influence of Asian culture on business- case study of Chinese culture
Uhlíková, Aneta ; Maitah, Mansoor (advisor) ; Radka, Radka (referee)
Topic of the thesis is to explain the influence of Asia culture on doing business, specifically focused on Chinese market. It analyses cultural differences and points out the importance of culture in business. In the theoretical part, the most important factors as well as all cultural influential factors are mentioned. Definition of culture itself is presented together with basic cultural elements and differeces among cultures. Further on, cultural dimensions of Geert Hofstede, one of the eminent world culture-scientist, are described, specifically focused on interaction among different cultures and organisational cultures.
Practical part then puts more emphasis on the Chinese business culture itself. Topics such as business negotiation differences are starting the practical part, followed by behaviour patterns after coming to China and meeting future business partners with Chinese roots. After explanation of all the basic differences " on the first sight", author goes more into details and explains detailed differences connected with traditions, rules and all other necessary information about how to behave in the Chinese business enviroment. Thesiś focuses on all formal collective behaviour concepts, which are very important in the Chinese culture as well as its history and philosophy, which influences both their personal and professional life every day.
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Význam sialovaných glykoproteinů pro klíště \kur{Ixodes ricinus}
ONDRUŠ, Jaroslav
Sialic acid is a highly abundant and a common component of vertebrate glycans, where it can be found in the terminal positions of the cell surface glycoconjugates. The amount of sialylated glycoconjugates as well as their complexity vary between both different species and different tissue types within one individual. Considering the vertebrates, these well studied structures are know to be important for cell-cell interactions, cell adhesion and immunity. In contrary, sialic acid in arthropod glycans has been identified only in a limited number of species. In obligatory blood feeding parasites such as ticks, distinguishing between sialylated glycoproteins of tick and host origin is challenging due to huge volumes of ingested blood containing heavily sialylated structures of host origin. In the tick Ixodes ricinus, the presence of minor amount of tick´s sialylated structures has been shown previously in the ovaries and salivary glands, however, their role remains completely unknown. In this thesis, we study the importance and role of both the tick-originating and the host sialylated glycoproteins for I. ricinus, the tick commonly found in Czech Republic. We show that the tick-originating sialylated glycoproteins are present in I. ricinus eggs, and that their amount changes over time after laying the eggs. Furthermore, these molecules were localized in cryosections of 14 days old eggs and in the larvae using confocal microscopy. In addition, we shed some further light on the role of sialic acid for ticks in the tick blood meal. According to our results, the glycan part of glycoproteins is the key in recognition of these molecules by tick cells.
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Italy - the potential market for further foreign expansion of the Storyous company
Hlubučková, Alena ; Zadražilová, Dana (advisor) ; Izera, Václav (referee)
Restaurants, bars or cafés will always serve as places for social interaction and so they are an essential part of human life. In each country around the world, it is a place for meeting people and communication. The mission of Storyous company is to help its clients to create a pleasant atmosphere in their food service business by providing next generation POS system not only in the Czech Republic but also in Poland. The company has already experience with the electronic sales reporting that brings considerations about another international market for its expansion. The aim of the thesis is to analyze the Italian market, mainly the sector of gastronomy services and qualify and quantify the customer base in Italy. At the same time, the structure of competitors along with a brief sample of them will be introduced. The timing for the Italian market entry, the gross initial costs and the rate of product adaption will be discussed on the basis of PEST analysis and Porter Five strenghts model analysis. In the conclusion author of the thesis recommends further steps for more detailed analysis.
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