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Data Mining Methods for Text Analysis
Kozák, Ondřej ; Marcoň, Petr (referee) ; Dohnal, Přemysl (advisor)
This bachelor thesis explores the current methodology and possibilities of text mining and the subsequent application of some methods. The thesis described methods for preprocessing, methods for converting text to vector space and methods for text analysis and discusses their possible applications. The different preprocessing methods were applied to the text and then the conversion to vector space was demonstrated using simple methods such as BOW, Bag of n-grams, TF-IDF or with machine learning methods which are FastText and GloVe. LSA, LDA, TextRank and cosine similarity methods were applied to the extracted vectors to extract information from the text.
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An overview of oils and their engineering applications
Kozák, Ondřej ; Frýza, Josef (referee) ; Šperka, Petr (advisor)
This Bachelor´s thesis deals with an overview of current state of knowledge of lubricating oils and their engineering applications. It includes characteristic and division of oils by manufacturing method and division of these oils by chemical structure. Basic compounds of oils including most used types of additives are mentioned and described. Next part of the thesis focuses on lubricant properties. Final part includes resume of applications in which the listed oils are applied and required properties for each type of application are mentioned.
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Developments of Car Drive Train
Kozák, Ondřej ; Kloss, Ondřej (referee) ; Kaplan, Zdeněk (advisor)
This thesis contains a summary of automotive differentials and is divided into two parts. In the first part various sorts of differentials are described. The other part deals with differentials of current production, particularly limited slip differentials.
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Gas Boiler for Local Natural Gas Combustion
Kozák, Ondřej ; Hudeček, Mirko (referee) ; Skála, Zdeněk (advisor)
This Master´s thesis deals with a thermal calculation and dimensional design of steam boiler for natural gas combustion with respect to the high efficiency of the boiler. It includes stoichiometric calculation and calculation of technical specifications of the boiler. Dimensions of combustion chamber are proposed. The crucial part of this thesis includes thermal calculation of designed heat-exchanging surfaces. The heat balance of the whole boiler is made to verify the results.
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House with business premise
Kozák, Ondřej ; Sláma, Ludvík (referee) ; Mohelníková, Jitka (advisor)
The bachelor's thesis focuses on the design, development of project documentation, and assessment of a residential building with a commercial space. The new building is designed in the city of Pardubice, on plot number 1384/20. It is a two-story house with a partial basement and a commercial space in the form of a hairdressing salon. The basement includes an underground garage, which can be accessed via a driveway ramp. The structure has a flat roof, and the walls of the above-ground floors are made of ceramic blocks, while the basement walls are made of concrete blocks from permanent formwork. The building is founded on simple concrete foundation strips. Inside the family house, there are two staircases: one wooden and one monolithic reinforced concrete. The building's ceilings are made of prestressed Spiroll panels, and thermal insulation made of stone mineral wool is applied in the above-ground section, while extruded polystyrene is used in the basement. The building is designed for a five-member family for permanent occupancy.
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Data Mining Methods for Text Analysis
Kozák, Ondřej ; Marcoň, Petr (referee) ; Dohnal, Přemysl (advisor)
This bachelor thesis explores the current methodology and possibilities of text mining and the subsequent application of some methods. The thesis described methods for preprocessing, methods for converting text to vector space and methods for text analysis and discusses their possible applications. The different preprocessing methods were applied to the text and then the conversion to vector space was demonstrated using simple methods such as BOW, Bag of n-grams, TF-IDF or with machine learning methods which are FastText and GloVe. LSA, LDA, TextRank and cosine similarity methods were applied to the extracted vectors to extract information from the text.
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Gas Boiler for Local Natural Gas Combustion
Kozák, Ondřej ; Hudeček, Mirko (referee) ; Skála, Zdeněk (advisor)
This Master´s thesis deals with a thermal calculation and dimensional design of steam boiler for natural gas combustion with respect to the high efficiency of the boiler. It includes stoichiometric calculation and calculation of technical specifications of the boiler. Dimensions of combustion chamber are proposed. The crucial part of this thesis includes thermal calculation of designed heat-exchanging surfaces. The heat balance of the whole boiler is made to verify the results.
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An overview of oils and their engineering applications
Kozák, Ondřej ; Frýza, Josef (referee) ; Šperka, Petr (advisor)
This Bachelor´s thesis deals with an overview of current state of knowledge of lubricating oils and their engineering applications. It includes characteristic and division of oils by manufacturing method and division of these oils by chemical structure. Basic compounds of oils including most used types of additives are mentioned and described. Next part of the thesis focuses on lubricant properties. Final part includes resume of applications in which the listed oils are applied and required properties for each type of application are mentioned.
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