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Design of heat recovery steam generator with two pressure levels
Ptáček, Ondřej ; Křemínský, Pavel (referee) ; Baláš, Marek (advisor)
This diploma thesis deals with proposal of a two-lane vertical boiler using the waste heat after gas turbine. In the first part the heat calculation has been done followed by the arrangement of particular heat exchange surfaces and the drawing of real saw diagram. There are also dimensions of drums, inlet and outlet pipes and transfer pipelines drafted. Furthermore, I have listed the materials that are used for casing the boiler and pipelines. Finally, the boiler loss is calculated and the boiler hydraulic calculation is performed. The supplement contains a boiler drawing.
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History of Materials for Production of Cross-country skis
Ptáček, Ondřej ; Němec, Karel (referee) ; Molliková, Eva (advisor)
The present bachelor thesis is of a retrieval type. The first part deals with the development of cross-country skiing and the development of materials and technologies used in the production of cross-country skis from the mid-20th century to the present. It also explains important concepts in terms of design, shape and types of cross-country skis. Additionally, materials for cross-country ski poles are outlined and their differences are discussed. The second part refers to some of the materials used in the manufacture of cross-country skis, or cross-country ski poles. The emphasis is mainly laid on composite materials and matrices. The matrix in composites is reinforced using fibre or other type of filler.
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Correlation dimension analysis for heart rate variability analysis
Ptáček, Ondřej ; Čmiel, Vratislav (referee) ; Janoušek, Oto (advisor)
Bachelor thesis deals with the analysis of heart rate variability (HRV). By focusing on the analysis of HRV in the time domain and mainly using correlation dimension. It is necessary to propose a methodology for evaluating changes in HRV data using these two techniques of analysis and the comparison of the two approaches. Subsequently create an application in MATLAB for analysis of HRV, which is able to evaluate the effect of changes in HRV caused by ischemia. In the last section it is necessary to discuss the results and the comparison of the two approaches to detect changes induced by ischemia.
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Processing of images taken from UAV
Ptáček, Ondřej ; Plánka, Ladislav (referee) ; Hanzl, Vlastimil (advisor)
This diploma thesis deals with the processing and evaluation of the pictures taken by unmanned aerial vehicles - UAV. The introductory part is devoted to the definition, use, applications and types of UAV especially for photogrammetric purposes. Also the software equipment is described, including a description and examples of several types of possible outcomes. Further the measurements, computational works and process of elaboration in used software programs are described. Achieved outcomes of elaboration are also presented. In conclusion, the overall evaluation and assessment of the results of measurement is done of set of points.
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Design of heat recovery steam generator with two pressure levels
Ptáček, Ondřej ; Křemínský, Pavel (referee) ; Baláš, Marek (advisor)
This diploma thesis deals with proposal of a two-lane vertical boiler using the waste heat after gas turbine. In the first part the heat calculation has been done followed by the arrangement of particular heat exchange surfaces and the drawing of real saw diagram. There are also dimensions of drums, inlet and outlet pipes and transfer pipelines drafted. Furthermore, I have listed the materials that are used for casing the boiler and pipelines. Finally, the boiler loss is calculated and the boiler hydraulic calculation is performed. The supplement contains a boiler drawing.
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Correlation dimension analysis for heart rate variability analysis
Ptáček, Ondřej ; Čmiel, Vratislav (referee) ; Janoušek, Oto (advisor)
Bachelor thesis deals with the analysis of heart rate variability (HRV). By focusing on the analysis of HRV in the time domain and mainly using correlation dimension. It is necessary to propose a methodology for evaluating changes in HRV data using these two techniques of analysis and the comparison of the two approaches. Subsequently create an application in MATLAB for analysis of HRV, which is able to evaluate the effect of changes in HRV caused by ischemia. In the last section it is necessary to discuss the results and the comparison of the two approaches to detect changes induced by ischemia.
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Processing of images taken from UAV
Ptáček, Ondřej ; Plánka, Ladislav (referee) ; Hanzl, Vlastimil (advisor)
This diploma thesis deals with the processing and evaluation of the pictures taken by unmanned aerial vehicles - UAV. The introductory part is devoted to the definition, use, applications and types of UAV especially for photogrammetric purposes. Also the software equipment is described, including a description and examples of several types of possible outcomes. Further the measurements, computational works and process of elaboration in used software programs are described. Achieved outcomes of elaboration are also presented. In conclusion, the overall evaluation and assessment of the results of measurement is done of set of points.
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History of Materials for Production of Cross-country skis
Ptáček, Ondřej ; Němec, Karel (referee) ; Molliková, Eva (advisor)
The present bachelor thesis is of a retrieval type. The first part deals with the development of cross-country skiing and the development of materials and technologies used in the production of cross-country skis from the mid-20th century to the present. It also explains important concepts in terms of design, shape and types of cross-country skis. Additionally, materials for cross-country ski poles are outlined and their differences are discussed. The second part refers to some of the materials used in the manufacture of cross-country skis, or cross-country ski poles. The emphasis is mainly laid on composite materials and matrices. The matrix in composites is reinforced using fibre or other type of filler.
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Budování prostředí pro inovativní start-upy v České republice
Štochlová, Karolina ; Jaklová, Martina L. (advisor) ; Ptacek, Ondrej (referee)
The goal of this thesis is to identify the challenges and success factors of the support system for innovative start-ups in the Czech Republic as well as to formulate recommendations for the implementation of the currently envisaged Seed fund project. The thesis covers the specifics of start-up companies and barriers for their development and puts them in relation with the current state of the Czech entrepreneurial environment and its innovation performance. Hard data as well as opinions of experts and potential investors are assessed to analyze the needs and motivations of both demand and supply sides of the venture capital market in order to provide some valuable insights which may help the support system to improve the access of entrepreneurs to external finance and boost the creation of innovative start-ups in the Czech Republic. The main suggestions introduced relate to the focus on retaining strict transparency, to the careful selection of entities evaluating the viability of projects and those providing services assisting the entrepreneurs in the preparation phase. Finally, the right setting of conditions of the Seed fund to attract both private investors and entrepreneurs will determine the success of the whole project.
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