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Modern LED luminaire concept for road lighting
Krejčí, Miroslav ; Kovářová, Klára (referee) ; Novotný, Jan (advisor)
This thesis deals with design of optical system for road lighting luminaire. In the beginning the basic photometric quantities and assessment methodology for requirements of lighting class M are described. The next step is the programming of algorithm which evaluates the road lighting requirements using few boundary conditions. The input of the algorithm is also luminous intensity (power emitted in a particular direction). By the turning the algorithm over, it is possible to evaluate the luminous intensity from the road lighting requirements. Those luminous intensities are used in the process of modification of optical lens. The ray tracing of modified models of lenses was performed to obtain the tables of luminous intensity. The values of luminous intensity are verified in the same algorithm. Finally, the comparison of results was made including several luminaires out there.
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Measurement of the distribution of an equivalent of cell dry mass using quantitative phase contrast of the CCHM
Kovářová, Klára ; Čolláková, Jana (referee) ; Křížová, Aneta (advisor)
Subject of this bachelor's thesis is to create an overview of conversions of phase profile to the values of dry mass and to realize experiments verifying the importance of dry mass. In the theoretical part, the history of the holographic microscopy and the development of the holographic microscopy on IPE FME BUT in Brno are summarized. The transmission holographic microscope is also described. This thesis covers its construction description and basic working instructions. The theoretical part also deals with the importance of image phase. Two approaches are presented for the interpretation of the phase delay and there is research on phase conversions to dry cell mass (according to H. G. Davies and M. H. F. Wilkins, G. Popescue, G. Dunn and D. Zicha). In the experimental part cultivation of cells, preparation of observation sample and processing of data are described. This part of thesis is also focused on laboratory experiments. Cells K2 (full name LW13K2) were observed in all experiments. First experiments deal with nutritional deprivation of cells and later with cell growth.
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The Importance of Laplace Transform in Regulation Theory
Kovářová, Karolína ; Dobrovský, Ladislav (referee) ; Dosoudilová, Monika (advisor)
This bachelor's thesis deals with the significant role of Laplace transform in regulation theory. The theoretical part is dedicated to the properties of this integral transform and the description of the control system. The usage of Laplace transform in search of process variable, step and impulse function is demonstrated on specific examples of oscillation theory. The final part offers a view on Laplace transform using MATLAB software.
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Observation of external environment influence on living cells with holographic microscope
Kovářová, Klára ; Tolde,, Ondřej (referee) ; Křížová, Aneta (advisor)
Subject of this master's thesis is the observation of influence of external environment on the living cells with the use of multimodal holographic microscope. The theoretical part is summarising the development of the holographic microscopy at IPE FME BUT. The theoretical part also describes multimodal holographic microscope, which allows non-invasive observing of living cells. The thesis also covers construction of the microscope, basic working instructions and the hologram processing method. The main subject of the thesis is the research on the topic of chemotaxis and osmotic processes in the cells. Experiments were designed for the purpose of this thesis to cover topics mentioned above. The experimental part of the thesis deals with cultivation of the cells, preparation of the sample and observation chambers and processing of the data. This part later focuses directly on the laboratory measurements. In all experiments, cells K2 (full name LW13K2) were observed.
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Proposal for Communication Mix of Children Playroom
Kovářová, Kristýna ; Kaňovská, Lucie (referee) ; Mráček, Pavel (advisor)
This theses deals with marketing issues of children playroom BALU. The thesis is divided into three main parts. The first part focuses on the theoretical interpretation and definition of important concepts of marketing, the second part introduces basic information about amusement park and analyses the current marketing situation. The last part of the thesis, according to the market research, will lead to changes in existing communication mix of amusement park and to propose new one, which will ensure greater awareness about the company and increase sales of services offered.
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Identifikace přírodních hodnot Černovické terasy
Kovářová, Kristýna
The bachelor thesis describes the natural conditions, potential and current state of geobiocenoses, history of the territory, current state and planned landscaping in the future. It also processes and evaluates inventory surveys carried out in the territory in 2006-2022. The area of 5.17 km2 is located in the south-east of Brno. The subsoil consists of sands and loess covered by anthropogenic deposits. The ground cover is chernozem. The territory falls into a warm region. Human activity in combination with succession influences has given rise to unusual biotopes that host a number of protected animal species. By synthesizing surveys, 498 plant species were obtained, of which 2 are protected by law and 43 are endangered according to the Red List. 17 species have been found in mammals, of which 3 are protected by law and 10 are endangered according to the Red List. 146 bird species have been registered, of which 56 are protected by law and 63 are endangered species according to the Red List. In amphibians and reptiles, 8 species have been recorded, the law protects 7 of them, and according to the Red List, 8 species are endangered. Of the insects, 176 species have been registered, of which 17 are protected by law and 31 are endangered according to the Red List. A floristic survey was also carried out. In which 200 plant species were found, none of which are protected by law and 18 are endangered according to the Red List.
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Production scheduling optimization
Kovářová, Karolína ; Šeda, Miloš (referee) ; Kůdela, Jakub (advisor)
This master’s thesis deals with production scheduling and its optimization. Scheduling plays an important role in a wide variety of areas – e.g., manufacturing, services, transport, and distribution. The theoretical part is dedicated to a brief historical overview and development of scheduling problems, then the classification of these problems and the basics of optimization. A scheduling task for the practical part is selected and methods applicable for its optimization are described. Selected algorithms are implemented, applied to five test instances, and then compared.
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Effect of addition of microbial or vegetable oil on the efficiency of cosmetic products
Kovářová, Karolína ; Hoová, Julie (referee) ; Němcová, Andrea (advisor)
This thesis focuses on the influence of the fatty acid profile and the concentration of active substances on the abilities to hydrate and to absorb into the skin of cosmetic emulsions. Coconut and macadamia oil, which are common cosmetic ingredients, were used as vegetable active ingredients. The last active ingredient used was the microbial oil, which was prepared as part of this work. Four strains of oleaginous yeast Metschnikowia were tested for the overproduction of microbial lipids in various culture media. Based on the results of gas chromatography, the yeast strain Metschnikowia pulcherrima (149) was selected. The chosen culture medium contained apple cider as a carbon source and had a 10 % sodium chloride content, inducing osmotic stress. Cosmetic emulsions with different concentrations of active ingredients were prepared. These emulsions were tested by sensory analysis. After application, the skin was analyzed with a skin camera that measured desquamation and sebum. The degree of desquamation is directly related to skin hydration and the level of sebum reflects the ability of the emulsion to be absorbed into the skin. It was found that if the user is not used to applying hydrating cosmetic emulsions regularly, but only solves the immediate problem of dry skin, it is advantageous to use an emulsion with an active ingredient content of 5.0 % or more. However, commercially available hydrating creams typically contain effective vegetable oils in lower concentrations. Furthermore, it was found that microbial oil could be a very interesting cosmetic ingredient.
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Stone surface topography of Prague historic monuments over the centuries
Kovářová, K. ; Cihla, Michal ; Malát, R. ; Semerád, M. ; Tryml, M.
Stonemasons tool traces on stone surface are undoubtably a significant part of monument historic value. As any other profession, stonemasons craft develops over time and has its own specifics in every period. Each work has its own unique pattern and bears traces of individual stonemason workshops, tradition, etc. The study of building stone cutting is based on evolving methods of mechanoscopy and analytical traceology. Stone traceology deals with traces in material and the subsequent reconstruction of tools and the processes of stoneworking. The interpretation of data in terms of determining the actual trace is called a mechanoscopy. When studying a stone surface, the latest 3D modelling technology is used with subsequent analyses by means of Global Mapper software. The use of these methods enables reconstruction of the craftsman’s tools. The presented article is an extract of a study that systematically maps the stone cutting work in the territory of Prague from the oldest buildings to the present day. For example, stonework in 9th century Prague was gradually evolving from simple stone block modelling to sophisticated cutting of blocks in the 12th century. This information can be very useful in the process of monument care.
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