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Visual inspection of axial bearing
Sýkora, Vojtěch ; Richter, Miloslav (referee) ; Janáková, Ilona (advisor)
This thesis is about visual control and measurement of bearings by using image sensors and it is about providing appropriate conditions for this measurement. It describes the selection of suitable hardware to solve this case. A large part of the thesis is the design and creation of my own light. Furthermore, algorithms for processing the acquired images of bearings are proposed. The result of the processing is the determination of the type of bearing in the image and the finding of possible defects.
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Variants of the active triangulation technique
Sýkora, Vojtěch ; Richter, Miloslav (referee) ; Janáková, Ilona (advisor)
This thesis is about method called active triangulation, specifically about measure systems which using mirror in it. In thesis is explain principle of active triangulation and principles of other optic measuring technic. Then there is described design of measuring system, its calibration and finally the measurement itself. The possibility of using a telecentric lens for measuring systems based on the principle of active triangulation is also tested. All programs are written using MATLAB.
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Heterogeneity of antigen-presenting cells in the thymus and its relevance for the establishment of central tolerance
Sýkora, Vojtěch ; Filipp, Dominik (advisor) ; Černý, Jan (referee)
The crucial function of the thymus is the establishment of central tolerance. In this process, developing T-cells are tested for their self-reactivity, since self-reactive T-cells might cause the autoimmunity if they would escape from the thymus to the periphery. Many thymic antigen-presenting cells are essential for establishment of central tolerance. Their role is to present self-antigens to the developing T-cells. Such presentation is capable to reveal the self-reactive potential of T-cells which can be then directly removed or deviated into suppressive T-regulatory cells. In the last several years, a high level of heterogeneity has been described among the thymic antigen-presenting cells and the molecular mechanisms that govern their functions towards enforcement of tolerance began to be uncovered. This thesis summarises recent knowledge in the field of heterogeneity of the thymic antigen-presenting cells and its relevance for establishment of the central tolerance, with the major focus on conventional dendritic cells and post-AIRE medullary thymic epithelial cells. This thesis also outlines recent advances in understanding of functional mechanisms and regulations of maturation of the antigen-presenting cells.
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Visual inspection of axial bearing
Sýkora, Vojtěch ; Richter, Miloslav (referee) ; Janáková, Ilona (advisor)
This thesis is about visual control and measurement of bearings by using image sensors and it is about providing appropriate conditions for this measurement. It describes the selection of suitable hardware to solve this case. A large part of the thesis is the design and creation of my own light. Furthermore, algorithms for processing the acquired images of bearings are proposed. The result of the processing is the determination of the type of bearing in the image and the finding of possible defects.
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