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Possibilities for testing and improving the durability of aerated concrete
Klaudová, Dana ; Voves, Jiří (referee) ; Hubáček, Adam (advisor)
This master´s thesis studies qualities of aerated concretes, is monitoring influenece concrete composition, quantity of aerating admixture and plasticized admixture on the durability of concrete. It is monitored especially air flow and his influence on durability on concrete. In theoretical part are explained mechanisms of damage concrete, phenomena, which influence compressive strength of concrete and then there are the results of resistance against the influence of chemical defrosting substances. In experimental work were designed, mixed and tested recipe of concerete. We investigated different atribute, especially resistance of the chemical defrosting and air flow in hardened concrete. The result of master´s thesis is effect of flow air in concrete on the durability.
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Vehicle Kinematics and Dynamics Simulations
Zháňal, Lubor ; Bauer, František (referee) ; Píštěk, Václav (referee) ; Kaplan, Zdeněk (advisor)
This paper focuses on the kinematic and dynamic numerical simulation of mechanisms by applying a numerical method, and a complex simulation programme built on it, developed by the author. Described are mathematical principles of the numerical method used and also the programming progression of the important parts of the application and its optimization. The final part includes comparative measuring of the accuracy and performance.
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Mathematical modeling of mechanical systems of vehicles
Zháňal, Lubor ; Svída, David (referee) ; Porteš, Petr (advisor)
This thesis deals with design and implementation of the computing system, which would allow interactive simulation of kinematics and dynamics of vehicle mechanical systems or general mechanisms with the help of modern computer technology. In the thesis is described a basic working principle, optimization of numerical simulation parameters, as well as the implementation itself in the form of functional application and its key parts. Described are also possibilities for the use of virtual reality devices in conjunction with visualization of simulation process. Final comparative tests have confirmed the functionality and high performance of the created system.
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Advanced Magnesium Alloys Surface Modification by Ni-P Based Coatings
Kosár, Petr ; Pacal, Bohumil (referee) ; Nový,, František (referee) ; Havlica, Jaromír (advisor)
The dissertation thesis deals with the modification of the surface of advanced magnesium alloys with Ni-P based coatings. At the beginning of the theoretical part, the structures of the used magnesium alloys and the influence of individual alloying elements on their properties are characterized. In the following part of the thesis the current knowledge in the field of electroless deposition on metal substrates is summarized. The theoretical part of the thesis is closed with contemporary research study in the field of clarification and determination of possible mechanism of electroless deposition. For the subsequent investigation of the mechanism of electroless deposition on magnesium alloys, it was necessary to characterize the microstructure and composition of individual magnesium alloys in the first phase of the experimental part. The exact composition of elements was determined using glow discharge optical emission spectroscopy and scanning electron microscopy with EDS was used for composition of phases of magnesium alloys. Using scanning electron microscopy and detailed elemental analysis of the coated magnesium substrate, it was found that for optimal Ni-P coating deposition on magnesium alloys, acid pickling prior coating is required in a mixture of acetic acid and sodium nitrate. Using the XPS method, it was found that the phosphorus atom in the sodium dihydride-diphosphate reducing agent has a + V charge. 4 At the end of the experimental part scanning electron microscopy and detailed elemental analyses were used for monitoring of the Ni-P particles nucleation and growth in the first 120 seconds of the coating process.
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Preparation and organization of the production area's construction facility
Řeháček, Martin ; Stehlíková, Jana (referee) ; Vlčková, Jitka Laura (advisor)
This master’s thesis relate to the preparation and organization of the production area’s construction of the SPEDUR company in Žďár nad Sázavou. The thesis contents technical report on the construction technological project, construction site, time plans, project of the equipment site, draft of the mechanisms, control and testing plan, environmental plan, risks of safety and health at work and calculation for this construction.
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Miroslav Bus Interchange - Selected parts of the construction plan
Grmela, Jan ; Štěpán, Richard (referee) ; Motyčka, Vít (advisor)
The diploma thesis contains selected parts of the building - technological project for the construction of the Miroslav bus interchange. This is a new building, which will improve the transport infrastructure and the safety of people at the site. Part of the diploma thesis is the technical report to the building and technological project, the time and financial plan, a study of the technological stages, budget and a detailed timetable, the organization of the building site, the technological regulation for the asphalt paving and the inspection and test plan, a plan concerning safety and dangers on a building.
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Private clinic Slavkov - building and technological project
Hartenberger, Lukáš ; Štěrba, Martin (referee) ; Vlčková, Jitka Laura (advisor)
The subject of my thesis is the construction and technological project of the new private clinics in Slavkov near Brno in South Moravia. The main goal of my work is a study of implementation of major technological stages of building. These technological steps will cover the main building. This study will be established timetable. Furthermore, the project will be processed construction site, the design of the main building machines and mechanisms, with the budget bill of quantities for the main building structure. Technological specification and control plan is prepared for the realization of construction scaffolding, flat roofs and implementation envelope. Re-entering the occupational health and safety plan for the aforementioned works.
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Mechanisms involved in neurodegenerative disorders origin and their consequences in neurobiological interactions.
Červinková, Monika ; Kulišťák, Petr (advisor) ; Šivicová, Gabriela (referee)
Neurodegenerative disorders represent due to their still increasing trend serious problem not only medical, but also socio-economic. The most common disorders in human population include Alzheimer's disease, Parkinson's disease, Huntington's disease and Amyotrophic lateral sclerosis. Underlying ethiopathogenetical mechanisms are not closely clarified yet. Potential conjunction between neurodegenerative disorders and stress is mentioned. Supposed relationship between neurodegenerative disorders and stress is based on knowledge of functional interrelationships among nervous, endocrine and immune systems. Animal models are very helpful for research in objective field and they can contribute to the elucidation of involved biological mechanisms. Knowledge of these processes could enable development of new diagnostic and therapeutic approaches in future.
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Mechanisms of the controlled food consumption within the eating disorders and their use in addictology: qualitative study
Česalová, Michaela ; Vacek, Jaroslav (advisor) ; Rychlá, Kateřina (referee)
Background: One of the great recent topics in addiction medicine is controlled use. Despite not having a clear definition, the term is universally associated with addictive substances. However, its use can also be found in eating disorders. Individuals who are trying to recover from eating disorders must eat in a controlled manner. Unlike addictive substances, this is not a choice, as food is essential to life and abstaining from food is not an option, like abstaining from an addictive substance. I find this connection very interesting and therefore I would like to deal with the mechanisms of controlled eating and its comparison in addictology in my bachelor thesis. Aim: The core of the research is to map the mechanisms by which people with eating disorders engage in controlled eating. In this thesis, I am looking for mechanisms in two types of eating disorders, bulimia and binge eating. The second aim is then to compare these mechanisms with controlled eating. For my thesis I have chosen controlled alcohol use. The third aim is to compare how these mechanisms also coincide with addiction treatment in addiction medicine. Methods: The data collection will be done through a semi-structured interview, the interview will have a prepared set of questions, but also leave room for new questions as the...
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Digital twin of a manufacturing cell in the context of Industry 4.0
Janus, Peter ; Parák, Roman (referee) ; Lang, Stanislav (advisor)
The aim of the thesis is to create a digital twin of the production cell and a graphical control interface. The first part of the thesis briefly describes the digital twin technology, TestBed and the means to create digital twins. It also provides practical examples and an overview of TestBeds in the Czech Republic and Slovakia. The next chapters are dedicated to the practical part of the thesis and describe the procedure of digital twin creation in ABB RobotStudio and B&R Automation Studio software. The thesis concludes with a summary of the knowledge gained during the development and possibilities for further development of the project.
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