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Study of Scattering and Polarization of Light in Biological Tissue
Abubaker, Hamed Mohamed ; Hrabovský, Miroslav (referee) ; Číp, Ondřej (referee) ; Tománek, Pavel (advisor)
Tkáňová optika nabývá rychle na významu a přesná znalost optických vlastností biologických tkání je podstatná pro výzkum v biomedicíně i pro kontrolu kvality potravin. Jestliže je vzorek tkáně osvětlen, dochází k mnohonásobnému odrazu světla. V případě postmortem neživých tkání (maso) je rozměr buněk větší než vlnová délka použitého světla. Dochází k Mieovu rozptylu prošlého nebo zpět odraženého světla, v důsledku čehož se objevují různé polarizační stavy světla. Polarizační stavy světla rozptýleného na difúzním prostředí jsou experimentálně zkoumány a modelovány. V práci jsme provedli dva modifikované experimenty: rozptyl polarizovaného světla, které dvakrát prochází vzorkem (vpřed a vzad) a jen světla, které jen prochází vzorkem. Měření rozptýleného světla ukazuje, že dochází k depolarizaci a ke stáčení polarizační roviny, což obojí závisí na orientaci svalových vláken a stárnutí tkání postmortem. Mimo experimentů byl také proveden teoretický popis difúzní biologické tkáně a byla vypočtena radiační přenosová rovnice pomocí modifikované Monte Carlo metody, která zahrnuje polarizační stav světla (PLMC). Je ukázáno, že stupeň polarizace podstatně závisí na optických vlastnostech rozptylového prostředí. Výsledky ukazují, že stav polarizace světla na výstupu závisí na stavu polarizace světla před vzorkem a na optických vlastnostech a tloušťce vrstvy prostředí v průběhu jejího stárnutí. Je také provedena korelace změn polarizace na čerstvosti masa, i popis dynamického chování polarizace při stárnutí masa.
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Study of luminicsence properties of organic semicondustors
Koňák, Petr ; Horák, Michal (referee) ; Boušek, Jaroslav (advisor)
This document describes using organic semiconductors to the electroluminescence on thin layers. In introduction of this file there is analysis a the problem of organic semiconductors and it's using in today's world. Next, I want to describe work with the given samples, their chemical composition and also include results from the measuration of electroluminescence.
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Design of Handheld Lamp
Horáček, Radim ; Bukvald, Jiří (referee) ; Křenek, Ladislav (advisor)
The main purpose of this bachelor‘s thesis is to bring an inovative approach to design of handheld lamp, while meeting technical, aesthetic, ergonomic and ecological requirements. The torch effectively combines modern design and innovatove holding solution; it brings a new perspective on this issue. Torch composed of segments, equipped with LEDs, is placed on the forearm. This solution provides a free hands and high mobility.
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Leisure Time Centre Brno
Gregorová, Stanislava ; Teplý, Vladimír (referee) ; Odvárka, Antonín (advisor) ; Pěnčík, Jan (advisor)
The theme of my bachelor’s thesis is to design a new leisure time centre building in Brno Novy Liskovec. The area is a defined space by street Plachty. The building site is situated in the northern part of the area, surrounded by blocks of flats. The principle of the draft is based on integration of the building into the park in the context of the surrounding buildings. The object corresponds with blocks of flats in its shape and material, it adapts to the surrounding terrain by incorporation into the slope. Typical of the whole building are concrete, cube, simplicity – they can be seen at first floor outside, contrary to the ground floor - it builds into the surrounding terrain by a material of wood. The leisure time centre building is functionally divided into parts: a multifunctional hall, rooms for leisure and café. All these operations are closely related and complement each other. Green roof of the building is designed for people, equipped with benches. Together with the adjustment of the surrounding park it contributes to the creation of public space on the estate.
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LED technology for Lighting Plants
Pospíšil, Tomáš ; Pavelka, Tomáš (referee) ; Krbal, Michal (advisor)
The aim of the work is to describe the physiology of plants and their needs to the successful evolution and growth. Furthermore to introduce a characteristic light requirement of plants and summarize differences between light requirements of the human eye and plants. More there are shortly mentioned the light quantities and units and by means of these quantities and their units there is assessed the appropriateness of lighting for plants. Another aim is to describe the electric and lighting-technical LED parameters that are suitable for use as a lamp designed for illumination of plants, outline the basic requirements that should the lamp designed for illuminating the plants fulfill. The last part is devoted to the presentation and evaluation of the measurement results of the lamp, which was already developed and used on prototype light source using LED.
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Jaroslavice – place in the landscape
Dräxlerová, Laura ; Ryšavá, Hana (referee) ; Foretník, Jan (advisor)
The project of Cultural hub for Jaroslavice village is based on the rich history of this small borderline area. It is aiming on improving the current state of the region by connecting it into the cultural net and coordinating creative project within the area. It focuses on attracting foreing artists and connecting them with local community as well as coworking with art schools. It provides workshops and courses for local people and targets children and young people for developing their relationship to culture and creativity, The most attractive part of the project is the „Laboratory of Light“. It is composed from 8 different light situations for artist to train their skills.
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LABORARTORY BRNO
Pechová Riedlová, Mária ; Palacký, Jiří (referee) ; Marek, Jiří (advisor)
Gallery of Architecture is located on a plot between Milady Horakove street and Koliště. It is a strategic location for linking urban park Balloon in the city center. The parcels are located near major cultural objects. Gallery exhibit allows different objects in different scales and different styles exposure. It uses two types of lighting. The building includes a café, lecture halls and more than 30% of the exhibition area. the ground floor is located Stacker 20/1
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