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Design of a workplace for polystyrene objects cutting by industrial robot
Macek, Jakub ; Kubela, Tomáš (referee) ; Pochylý, Aleš (advisor)
This Bachelor thesis mainly focuses on the construction of the effector for cutting complex shapes made of polystyrene by an industrial robot. This thesis describes various methods of cutting polystyrene, the choice of the right type of robot, construction of the effector with the possibility of tensing the wire, workplace suggestion, as well as the results of accuracy and precision measurements of the constructed effector.
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IMPLEMENTATION OF EXTERNAL CLADDING OF DETACHED HOUSE IN VELKÁ BYSTŘICE
Tříska, Libor ; Lukášková, Jana (referee) ; Mohapl, Martin (advisor)
This bachelor thesis deals with the implementation of external cladding of detached house in Velká Bystřice. The external cladding consists of contact thermal insulation and ventilated facade with final layer of facing bricks, natural slate and titanium zinc sheet. The thesis includes technical report, bill of quantities, technology prescription, time schedule, design of the machine assembly, site facilities, inspecting and test plan, occupational safety and health and use of local natural material during the implementation.
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The influence of the outdoor temperature on the properties of the reinforced layer in the implementation of ETICS
Novotný, Michal ; Gašparik,, Jozef (referee) ; Schmid, Pavel (referee) ; Sedlák,, Petr (referee) ; Lízal, Petr (advisor)
The trend in today's civil engineering are growing demands for quality and comfort constructed buildings and spaces in them. This trend causes a change in the approach to designing buildings and building new buildings. One of the main directions great importance is attached dedicated reconstruction of buildings and their technical adjustments to meet the ever increasing demands being norms and laws. One of the most monitored parameters are thermal-technical characteristics of objects - i.e. better quality means saving on heating costs. In this connection there is a big trend of the modern construction industry and building insulation, mainly ETICS systems. Dissertation focuses on the basic (reinforced) layer of the ETICS and examines the effect of low temperatures, acting on the matter in the implementation of the system, the properties of this layer. This coating is one of the key elements of the system, which more or less determines the quality and durability of the system. The first part deals with the current state of the problem and generally insulation systems, basic types and the advantages and disadvantages of these systems. In the main part of the work is solution focused work, its objectives and methodology for testing materials using laboratory tests and are mentioned outputs of experiments in terms of results. The final section addresses the evaluation of the data and results and output for construction practice. The theme of work was also addressed in the specific research. The works are also numerical and graphical attachments to records of experiments and calculations.
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The development of a TGA-MS based method for determination of microplastics in soils
Šilhánková, Lenka ; Mravcová, Ludmila (referee) ; Kučerík, Jiří (advisor)
Plasty, pronikající do životního prostředí ať už neúmyslně či záměrně, mohou být fragmentovány za vzniku částic v řádu mikrometrů (tzv. mikroplastů) a znečišťovat tak půdní systémy. Doposud vyvinuté analýzy pro stanovení mikroplastů v půdách jsou především zaměřeny na kvalitativní stanovení, nicméně i jejich provedení se zatím stále potýká s různými úskalími. Navíc, téměř všechny tyto analýzy vyžadují časově náročnou předúpravu vzorku. V této studii jsme se zaměřili na vývoj nové analytické metody pro kvantitativní stanovení mikroplastů polyvinylchloridu (PVC) a polystyrenu (PS) v půdách bez předchozí úpravy vzorku pomocí termogravimetrické analýzy spojené s hmotnostní spektrometrií (TGA-MS). Pro analýzu byly použity vzorky modelové půdy s nízkým obsahem organického uhlíku, které byly spikovány na výslednou koncentraci 0,23–7 hm% PVC či PS. Vzorky byly pyrolyzovány s teplotním krokem 5 K min–1 až na teplotu 1000 °C. Pyrolýzní plynné produkty byly následně analyzovány s využitím hmotnostního spektrometru. Získaná data byla normalizována pomocí externího standardu (šťavelan vápenatý). Limity detekce se pohybovaly v rozmezí 0,08–5,3 hm% pro PVC a 0,005–0,7 hm% pro PS v závislosti na zvoleném m/z. Limity kvantifikace pak byly 0,3–17,7 hm% pro PVC a 0,002–2,2 hm% pro PS. Výsledky dokazují, že spojení TGA-MS může být konkurující semikvantitativní metodou pro stanovení mikro-PVC a mikro-PS v půdě s nízkým obsahem organického uhlíku.
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Polymeric nanocomposites - preparation methods
Černý, Miroslav ; Žídek, Jan (referee) ; Kučera, František (advisor)
Literature search of bachelor thesis was focused to methods of CaCO3 nanoparticles preparation, surface modification and PS/CaCO3 nanocomposites processing. Experimental part was based on two methods of PS/CaCO3 nanocomposites preparation: emulsion and bulk technique of styrene radical polymerization in presence of CaCO3 and by compounding CaCO3 with PS in Brabender mixer at 220 °C. Prepared samples were observed using electron microscope.
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Grandfather
Auerová, Veronika ; Sobotka, Jiří (referee) ; Gabriel, Michal (advisor)
In my bachelor thesis I portray my grandfather as a life-size sculpture. The main emphasis is on the surface treatment of the sculpture, where I imitate the texturing process using photographs, which usually takes place in a virtual environment. The resultant statue is very lively, even naturalistic.
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Hot wire robot cutting of polystyren boards
Dvořák, Roman ; Pochylý, Aleš (referee) ; Kubela, Tomáš (advisor)
This thesis deals with the cutting of flat shapes of polystyrene by industrial robot using Robotmaster. There are some variants of the shaped components that can create by using Robotmaster. The task of the work is also a demonstration task in the realization of use a resistance wire as a tool and polystyrene boards as a workpiece material.
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Low-Energy Timber Detached House
Král, Jakub ; Hučík, Michal (referee) ; Králová, Zuzana (advisor)
The aim of my bachelor thesis is a project of new low-energy detached house with garage, two-floor house without cellar. The building is covered with flat green roof. The structural system is composed of timber I-joists Steico. Detached house consists of one housing unit of category 5+1.
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Development of a new self-supporting insulation system with respect to dynamic stress
Machala, David ; Frajt, Daniel (referee) ; Drochytka, Rostislav (advisor)
This diploma thesis deals with suggestion of self-supporting insulating system that can be used for objects which insulating is more or less complicated. In this thesis are theoretically processed information about insulation systems while focus is on their structure, composition and principle of operation. Further, there is theoretically designed self-supporting insulating system which is practically built after theoretically composed testing for finding its basic properties. The most appropriate process of realization is formulated at the end after evaluation of the individual tests.
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