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Monitoring the influence of concrete composition on abrasion resistance
Černá, Hana ; Novosad, Petr (referee) ; Bodnárová, Lenka (advisor)
This diploma thesis focuses on the resistance of concrete to abrasion with regard to the raw materials used for their production. In the theoretical part of the thesis are described admixtures, different types of aggregate and aggregate composition which influence the resistance of concrete to abrasion. In the experimental part, 15 different C30 / 37, S4 concrete formulations were proposed. Different types of aggregates - fecal gravel (Žabčice), biotic granodiorite (Olbramovice) and amphibolite (Želešice) have always been used in the recipes. Fine ground limestone, micro-silica, high-temperature fly ash and finely ground slag were ingredients that were added to the proposed recipes. Consistency was determined by the method of cone seating and the density of fresh concrete. In the hardened state, concrete density, compressive strength, bending tensile strength, tensile strength, watertightness, concrete absorption, and abrasion resistance were determined using the Böhm method and wide wheel method. The test specimens were tested after 7, 28, and 90 days of maturation.
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Risk Related to Selecting a Supplier Using Fuzzy Logic
Černá, Hana ; Doskočil, Radek (referee) ; Dostál, Petr (advisor)
The diploma thesis deals with selection and evaluation of phone accessories suppliers for ZONES s.r.o. company and evaluates their possible risks. In thesis is created decision model which is using fuzzy logic. The main part of the thesis consists of proposals for the evaluation of the company's suppliers. At the beginning of thesis are theoretical bases which will be used in the practical parts. Decision models are created in Microsoft Excel and MATLAB. The fuzzy model is based on requirements of the company. Another part of the thesis deals with analysis and comparison of results from both programs. The result of this thesis is the model which is easy to use and improves selection and evaluations of phone accessories for ZONES s.r.o. company.
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Detached House Olbramovice
Černá, Hana ; Chuchma, Lukáš (referee) ; Smolka, Radim (advisor)
This bachelor thesis deals with the design documentation of a detached house with a dental surgery, designed for a family of five. The house is situated in South Moravia, Znojmo district, in Olbramovice village, cadastral area no. 709930 – Olbramovice u Moravskeho Krumlova. The building is designed as a brick building. Vertical and horizontal constructions are designed from the Porotherm structural system. Foundation structures are designed from concrete. The main part of the building is covered with a pitched roof with a slope of 30°. The pitched roof is constructed as a wooden frame and a purlin system. The garage is covered with ply flat roof. The dental surgery is covered with a flat walkable roof. The building has two floors in the main part. In the side parts of the building (the garage and the dental surgery) object have only one floor. The building is newly built and it has a dissected plan.
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Block of flats
Černá, Hana ; Burianová, Lenka (referee) ; Smolka, Radim (advisor)
Abstract This diploma thesis deals with the design documentation of a block of flats. The block of flats is supposed to be situated in South Moravia, Znojmo district, in Olbramovice village, cadastral area no. 709930 – Olbramovice u Moravskeho Krumlova. The building is designed as a brick building with a contact thermal insulation system. Vertical constructions are designed from the Porotherm structural system. Horizontal constructions are designed as reinforced concrete structure. Foundation structures are designed from concrete. The object is roofed with a warm flat roof. The object has four floors. On the ground floor is technical hinterland and also one flat is designed to be barrier-free. The other floors are individual flats. There are ten flats in the building. Five flats have their own loggia and two flats have terrace. The building is newly built and it has a L-shaped plan.
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Mortar with alkali-activated matrix
Černá, Hana ; Hela, Rudolf (referee) ; Bodnárová, Lenka (advisor)
The thesis addresses the issue of alkali-activated materials and their manufacturing components. In the theoretical part the description of such materials is provided and the requirements for source materials are defined. The theoretical part further addresses the resistance of alkali-activated materials and their lifespan - namely sulphate resistance, chloride resistance, acid resistance, frost resistance, porosity, carbonation, resistance, abrasion resistance and heat resistance. The experimental part of the thesis focuses on compounding four different mixtures of alkali-activated materials. In the loosened stage, the weight was measured. In the hardened stage the weight was measured as well as the tensile strength when bending, the strength under pressure applied, heat resistance, water and defrosting chemicals resistance and formation of cracks.
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Apoptosis and its role in selected human diseases
Černá, Hana ; Kvasničková, Eva (advisor) ; Zemanová, Lucie (referee)
Charles University in Prague Faculty of Pharmacy in Hradec Králové Department of Biochemical Sciences Candidate: Hana âerná Supervisor: Prof. RNDr. Eva Kvasniãková, CSc. Title of diploma thesis: Apoptosis and its role in selected human diseases Apoptosis, which represents a specific form of programmed cell death, is an essential physiological process. It is very important for the organism's developement and for the maintenance of tissue homeostasis. It is a highly regulated process that is always triggered by a definite signal. This signal activates specific apoptotic pathways, a series of mechanisms that subsequently lead to cellular decline. The dysregulation of apoptosis is associated with a variety of pathological conditions such as cancer, some disorders of the immunty system or of the cardiovascular system, or neurological diseases. To the last mentioned belong neurodegenerative disorders that are characteristic of the decline of selective neuronal populations. Examples of these are Alzheimer's and Parkinson's disease. Although its pathogenesis is still not fully elucidated, many studies indicate that the loss of neurons could be tightly related to excessive apoptotic activity. In spite of some discrepancies apoptosis can therefore be expected to an important part of the pathogenesis of these...
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The pharmacotherapy of the migraine
Černá, Hana ; Melicharová, Ludmila (advisor) ; Vopršalová, Marie (referee)
In this thesis there are summarized the most important aspects of treatment of migraine. The initial step in treatment of migraine should be proper diagnosis of migraine headaches and triggering factors. Successful disease management is complex, must combine pharmacologic and non- pharmacologic approach, change of lifestyle and nutrition. Good cooperation between the doctor and the patient should be considered under the treatment success. Development of a new type of pharmaceuticals called "triptans" caused the substantial progress. It presents the most effective class of pharmaceuticals and the principal part of management of migraine.
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Zhodnocení finanční situace společnosti ŽĎAS, a.s.
Černá, Hana
The aim of the thesis is based on the results of the financial analysis to evaluate economic situation of ŽĎAS, a.s. and provide suggestions of measures to improve actual situation of company. The financial analysis is created to based on the fi-nancial reports and evaluated in 2009-2015. In the first theoretical part are defined the notions and methods of financial analysis. In the second practical part are these methods applied on concrete company. There are horizontal analysis, vertical analysis, differential ratios, aggregate ratios and credibility and bankruptcy models. In conclusion are recapitulated results of financial analysis. On the based these results are includes suggestions for improve the overall situation in company.
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Risk Related to Selecting a Supplier Using Fuzzy Logic
Černá, Hana ; Doskočil, Radek (referee) ; Dostál, Petr (advisor)
The diploma thesis deals with selection and evaluation of phone accessories suppliers for ZONES s.r.o. company and evaluates their possible risks. In thesis is created decision model which is using fuzzy logic. The main part of the thesis consists of proposals for the evaluation of the company's suppliers. At the beginning of thesis are theoretical bases which will be used in the practical parts. Decision models are created in Microsoft Excel and MATLAB. The fuzzy model is based on requirements of the company. Another part of the thesis deals with analysis and comparison of results from both programs. The result of this thesis is the model which is easy to use and improves selection and evaluations of phone accessories for ZONES s.r.o. company.
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Monitoring the influence of concrete composition on abrasion resistance
Černá, Hana ; Novosad, Petr (referee) ; Bodnárová, Lenka (advisor)
This diploma thesis focuses on the resistance of concrete to abrasion with regard to the raw materials used for their production. In the theoretical part of the thesis are described admixtures, different types of aggregate and aggregate composition which influence the resistance of concrete to abrasion. In the experimental part, 15 different C30 / 37, S4 concrete formulations were proposed. Different types of aggregates - fecal gravel (Žabčice), biotic granodiorite (Olbramovice) and amphibolite (Želešice) have always been used in the recipes. Fine ground limestone, micro-silica, high-temperature fly ash and finely ground slag were ingredients that were added to the proposed recipes. Consistency was determined by the method of cone seating and the density of fresh concrete. In the hardened state, concrete density, compressive strength, bending tensile strength, tensile strength, watertightness, concrete absorption, and abrasion resistance were determined using the Böhm method and wide wheel method. The test specimens were tested after 7, 28, and 90 days of maturation.
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