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Design of a simulator module for analysis of friction and wear of teeth during cleaning
Snopek, Lukáš ; Streďanská, Alexandra (referee) ; Vrbka, Martin (advisor)
This thesis focuses on the design of a module for the tribological simulator Bruker UMT TriboLab, which will be used in research in the field of analysis of wear of hard dental tissues and filling materials due to tooth cleaning. The aim of this work was the design of experimental conditions, module construction, creation of drawing documentation, production and subsequent implementation of a validation experiment. The conditions of the experiment were determined on the basis of research and to create an optimal design solution, prototypes were continuously produced using the 3D printing method. Finally, two toothbrush fixtures and two dental filling sample fixtures were made based on the drawing documentation. Subsequent assembly of the fixtures and the implementation of the experiment on the tribometer verified their functionality, which makes it possible to declare all the goals successfully met. Now these fixtures will be part of several research tasks in the field of oral biotribology.
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Design of a simulator for studying eye friction and lubrication
Snopek, Lukáš ; Horák, Zdeněk (referee) ; Vrbka, Martin (advisor)
This work deals with the design of a tribometer, which simulates the interaction between the human eye and the eyelid, and simultaneously measures the friction between them and the thickness of the tear film. The tribometer will be used for research and development of artificial tears based on hyaluronic acid. The aim of the work was to design experimental conditions, conceptual and design solutions, as well as to ensure the production, assembly, and validation of the device. The experimental conditions were determined based on critical research. Four different conceptual solutions were proposed, of which two were selected for further development in the design solution. Based on the engineering documentation, the production of non-standardized components and assembly were ensured. Validation experiments demonstrated that the simulator enables the measurement of friction and tear film thickness at the contact area under the desired conditions, with both conforming and non-conforming types of contact. The contribution of this work lies in the construction of a new device that allows for measuring the coefficient of friction and film thickness during conforming contact, offering new opportunities in the study of human eye biotribology.
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The dissolving of the Cistercian monastery in Sedlec (1783-1799)
Snopek, Lukáš ; Maur, Eduard (advisor) ; Tinková, Daniela (referee)
The Cistercian Monastery in Sedlec existed with intermissions in the years 1143-1783/99. The Convent Church of Virgin Mary and St. John the Baptist belongs from 1995 to World Cultural Heritage of UNESCO. During the 20th century were many Czech historians for example Jaromír Čelakovský, Jaroslav Čechura, Kateřina Charvátová, Josef Nuhlíček, Pavel Zahradník and art historians Mojmír Horyna, Karel Chytil, Viktor Kotrba, Jiří Kuthan, Petr Macek, Jaromír Neumann, Zdeněk Wirth interested in history of Sedlec. As for the joungest generation it is possible to mention for exmaple Jana Hynková and Štěpán Vácha. Through the first chapter of the thesis we want to introduce the history of the Monastery as a whole. The last part of the chapter obtains a brief essay about the economic progress. In 1760 Sedlec had around 450 000 rheinisch gulden in debts. The great debts of Monastery were the important cause of the Emperors Josef II decision to cease it (8th August 1783). The second chapter is dealing with the process of the rise of the anti-monastic social atmosphere during the 18th century. Monks lifestyle became incomprehensible especially for the followers of philosophical enlightenment. The economic theoretics thought that the monasteries injured national economy. Inside the Church shared the above said process the so...
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Design of a simulator module for analysis of friction and wear of teeth during cleaning
Snopek, Lukáš ; Streďanská, Alexandra (referee) ; Vrbka, Martin (advisor)
This thesis focuses on the design of a module for the tribological simulator Bruker UMT TriboLab, which will be used in research in the field of analysis of wear of hard dental tissues and filling materials due to tooth cleaning. The aim of this work was the design of experimental conditions, module construction, creation of drawing documentation, production and subsequent implementation of a validation experiment. The conditions of the experiment were determined on the basis of research and to create an optimal design solution, prototypes were continuously produced using the 3D printing method. Finally, two toothbrush fixtures and two dental filling sample fixtures were made based on the drawing documentation. Subsequent assembly of the fixtures and the implementation of the experiment on the tribometer verified their functionality, which makes it possible to declare all the goals successfully met. Now these fixtures will be part of several research tasks in the field of oral biotribology.
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The dissolving of the Cistercian monastery in Sedlec (1783-1799)
Snopek, Lukáš ; Tinková, Daniela (referee) ; Maur, Eduard (advisor)
The Cistercian Monastery in Sedlec existed with intermissions in the years 1143-1783/99. The Convent Church of Virgin Mary and St. John the Baptist belongs from 1995 to World Cultural Heritage of UNESCO. During the 20th century were many Czech historians for example Jaromír Čelakovský, Jaroslav Čechura, Kateřina Charvátová, Josef Nuhlíček, Pavel Zahradník and art historians Mojmír Horyna, Karel Chytil, Viktor Kotrba, Jiří Kuthan, Petr Macek, Jaromír Neumann, Zdeněk Wirth interested in history of Sedlec. As for the joungest generation it is possible to mention for exmaple Jana Hynková and Štěpán Vácha. Through the first chapter of the thesis we want to introduce the history of the Monastery as a whole. The last part of the chapter obtains a brief essay about the economic progress. In 1760 Sedlec had around 450 000 rheinisch gulden in debts. The great debts of Monastery were the important cause of the Emperors Josef II decision to cease it (8th August 1783). The second chapter is dealing with the process of the rise of the anti-monastic social atmosphere during the 18th century. Monks lifestyle became incomprehensible especially for the followers of philosophical enlightenment. The economic theoretics thought that the monasteries injured national economy. Inside the Church shared the above said process the so...
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