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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
31

Antikorozní ochrana svarů u konstrukčních materiálů

Černý, Oldřich January 2016 (has links)
This master´s thesis is divided into two parts - theoretical and practical. The first section of the theoretical part lists welding techniques and mentions the problematic of robot welding. The second section deals with corrosion and types of corrosion degradation. Third and final section discusses the current trends in anticorrosive protection, with special focus on several of them. The practical part applies the theory in from of experiment. Selected anticorrosive protection systems were applied to test samples, which contained a weld. The samples were exposed to accelerated corrosion in salt fog and several other experiments. The samples were then subjected to a tensile test so that the effect of corrosion damage to the weld strength could be measured.
32

Historické povrchové úpravy dřeva v kombinaci se současnými nátěrovými hmotami

Šťastný, Pavel January 2011 (has links)
No description available.
33

Povrchová úprava ABS součástí po 3D FDM tisku / Surface treatment of ABS parts after FDM 3D print

Světlík, David January 2015 (has links)
This master thesis deals with the surface treatment of parts made of plastic produced using FDM technology and design of technological device for surface treatment. The thesis describes FDM principles, according to performed experiments in a technological device there are suggested technological conditions for the surface treatment of parts made of ABS plastic. In the end of the thesis, there are calculated costs of the technological device and its operating costs, also mechanical properties, surface roughness and other specifications from before and after the treatment are compared.
34

Využití přirozené sukcese v rekultivacích =:The Use of Natural Succession in Reclamation /

Botková, Kamila January 2019 (has links)
This dissertation deals with the use of natural succession in reclamation practice in landscape restoration after surface mining of raw materials. In the context of landscape engineering, this is a complex issue which was generally addressed at three levels: ecological, technical and practical. The thesis is conceived as a set of own scientific publications, which are presented in a broader context and their conclusions generalized for the needs of possible use in practice. At the ecological level, the natural or controlled succession is an appropriate means of restoration at most habitats. The practical use is limited mainly by legislation on protection of agricultural land fund and land intended for the fulfilment of forest functions, demands and expectations of owners of land affected by mining, and also by ensuring long-term management of areas resulting from natural succession.
35

Analýza zdrojů znečištění povrchových a podzemních vod v souvislosti se zásobováním pitnou vodou obce Studené

Suchodol, Jiří January 2018 (has links)
This diploma thesis deals with the analysis of sources of groundwater and surface water pollution together with the use of the territory. The literary research describes con-cepts, divisions and other important topics related to groundwater and surface water. The practical part deals with water quality in the village Studené (underground and surface water). Results, measurements and draft measures are also presented. The aim is to take water samples from the Nekořský brook and to evaluate them in the university laboratory and to analyze the results of drinking water analyzes. Based on the evaluation of all the information obtained, it is proposed measures to improve the quality of surface water and groundwater (drinking water). The area of interest is located in the village of Studené.
36

Povrchová úprava nábytku do chráneného exteriéru a jej priepustnosť voči vode

Machunková, Andrea January 2018 (has links)
The diploma thesis deals with the influence of of water absorption, together with accelerated ageing on the specific properties of the surface treatment of black locust (Robinia pseudoacacia) and spruce (Picea sp.) wood intended for furniture in a covered exterior. And also was monitored the influence of the repeated sorption on the physical-mechanical properties of the surface treatments. The samples were made of solid wood and finished by transparent polyurethane and lasuring coating, which is intended for surface treatment of wood intended for exterior conditions. In the laboratory the coatings were tested for water permeability according to ČSN EN 927-5 and at the same time the samples were tested in model accelerated ageing in Xenoteste according to ČSN EN 927-6. The samples were examined by standardized tests for determine the properties of surface treatments in terms of changes in surface morphology.
37

Povrchová úprava plastů v nábytku

Pelikánová, Ivana January 2018 (has links)
The thesis deals with the quality of surface finishing of individual types of plastics and their suitability for worktops of furniture. The work defines the properties of plastics and requirements for the surface finishing of furniture. In the experimental part, the properties of plastic surfaces are verified by performing tests on ABS, PC, PMMA, PP and PVC samples. The output is to evaluate the properties and meet the requirements of test surfaces for use on the worktops.
38

Proti požární povrchová úprava

Ženatý, Petr January 2018 (has links)
The goal of the thesis is to try and test the functionality of fire protection coatings, which are intended to protect against the direct effects of fire. This is the protection of furniture materials that are used predominantly in areas where fire can occur (restaurants, bars, public interiors), but also in the home near heat-generating devices. The purpose of surface protection is to prevent the spread of fire, to protect the flammable underlying material and to reduce the amount of smoke generated. The tests will be carried out according to ČSN EN 13501-1. The subject of the thesis is also to compare the mutual interaction of the substrate material and the paint composition with respect to the overall fire resistance and subsequently to evaluate the lowest weight loss during the flame action. The rest of the tests will deal with the determination of paints parameters such as adhesion to the surface, resistance to temperature changes, etc.
39

Povrchová úprava jevištních podlah

Koutník, Daniel January 2019 (has links)
The diploma thesis deals with the comparison of physical-mechanical properties of pigmented surface finishes used for solid wood pine flooring. The theoretical part deals with stage floor systems and interior public floors. Furthermore, it analyzes the requirements for interior public floors and the ways of its stressing and finishing. Experimental measurements of surface finishing are performed by using test methods. Waterborne and polyurethane coatings were selected for surface finishing. The aim of this work is to compare individual physical-mechanical properties and to develop the most suitable surface finishing for stage floors. Subsequently, the technological procedure for its completion is determined.
40

Interakce mezi povrchovou a podzemní vodou v nivě řeky Lužnice / Interaction of surface water and groundwater og Luznice River

Slabá, Zdenka January 2011 (has links)
This thesis is a part of a project run by The Department of Geography, Faculty of Science in Charles University in Prague. This project deals with processes in floodplains of the Lužnice, the Stropnice and the Blanice rivers. The research in the floodplain of the Lužnice started in the year 2008 and is focused on the interaction between groundwater and surface water. The monitored territory it is situated to the south of a locality called Halámky and its area is 0,6 km2. In this thesis mainly the outputs of the research were elaborated. The highlighted points were the interpretation of the groundwater level behaviour, the groundwater streaming orientation in the area and interaction between groundwater and surface water. The outputs of this thesis can be used in the next stages of the project.

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