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Lighting unit for PCB production
Hybler, Matěj ; Harabiš, Vratislav (referee) ; Balogh, Jaroslav (advisor)
The thesis deals with the design of microcontroller driven lighting unit for the printed circuit board creation, using exposure of the applied layer of the photoresistive material. Main part is dedicated to design of the control unit, which can be operated either in automatic or manual mode, then its source code for microcontroller written in C language and the selection of suitable source of UV radiation. It also describes the design of the entire device, methods and results of individual measurements to determine the achievable quality of the resulting PCB.
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The effect of swimming training on children with skin problems
Kleinerová, Kateřina
The diploma thesis focuses on children of early school age who have undergone mandatory swimming training in pools with various water disinfection methods, specifically chlorine, salt, and UV+. The aim of the thesis is to analyse how this swimming instruction affects children with different skin conditions, such as dry skin, atopic eczema, psoriasis, and plantar warts. The research was conducted at three different primary schools, each of which visited a different swimming pool with a distinct water treatment method during the swimming lessons. A total of 348 students participated in the research, including 172 girls and 176 boys from the 3rd and 4th grades, aged 8 to 11. The research utilized the method of quantitative personal interviewing and the method of qualitative observation. The theoretical part delves into swimming, swimming instruction, water treatment methods in swimming pools, and selected skin diseases. The practical part outlines the research findings. The obtained results demonstrated that skin dryness was observed in 35.4% of students from all three schools participating in swimming lessons. Skin dryness manifested in 26.5% of students in the chlorinated pool, in 46.2% of students in the salt-treated pool, and in 34.6% of students in the UV+ pool. The exacerbation of atopic eczema...
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The effect of swimming training on children with skin problems
Kleinerová, Kateřina ; Svobodová, Irena (advisor) ; Jandová, Soňa (referee)
The diploma thesis focuses on children of early school age who have undergone mandatory swimming training in pools with various water disinfection methods, specifically chlorine, salt, and UV+. The aim of the thesis is to analyse how this swimming instruction affects children with different skin conditions, such as dry skin, atopic eczema, psoriasis, and plantar warts. The research was conducted at three different primary schools, each of which visited a different swimming pool with a distinct water treatment method during the swimming lessons. A total of 348 students participated in the research, including 172 girls and 176 boys from the 3rd and 4th grades, aged 8 to 11. The research utilized the method of quantitative personal interviewing and the method of qualitative observation. The theoretical part delves into swimming, swimming instruction, water treatment methods in swimming pools, and selected skin diseases. The practical part outlines the research findings. The obtained results demonstrated that skin dryness was observed in 35.4% of students from all three schools participating in swimming lessons. Skin dryness manifested in 26.5% of students in the chlorinated pool, in 46.2% of students in the salt-treated pool, and in 34.6% of students in the UV+ pool. The exacerbation of atopic eczema...
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Lighting unit for PCB production
Hybler, Matěj ; Harabiš, Vratislav (referee) ; Balogh, Jaroslav (advisor)
The thesis deals with the design of microcontroller driven lighting unit for the printed circuit board creation, using exposure of the applied layer of the photoresistive material. Main part is dedicated to design of the control unit, which can be operated either in automatic or manual mode, then its source code for microcontroller written in C language and the selection of suitable source of UV radiation. It also describes the design of the entire device, methods and results of individual measurements to determine the achievable quality of the resulting PCB.
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