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Efficiency Improvement Proposal of Machining Process of Cylinder Component for Oil Wells
Koudela, Michal ; Sliwková, Petra (referee) ; Sedlák, Josef (advisor)
This diploma thesis is concerned with a proposal for increasing the efficiency of machining when manufacturing an inner sleeve at the company Sanborn a.s. In the diploma thesis, the technology used for machining itself is first briefly described, followed by a description of the original production technology including a description of machine and hand tools used and cutting conditions. The next part of the paper describes the proposal for increasing the efficiency of machining operations. The proposal includes a description of the suggested solution that will lead to increased efficiency, a machine proposed for the specific operation, appropriate tools and proposed cutting conditions. The benefits of implementing the proposal are also described here, both in terms of saving unit time, and in terms of the machining technology itself, where, for example, the formation of chips is improved, the inner tension of machined components reduced, etc. The diploma thesis further includes a technical-economic evaluation assessing the economic benefits of the changes introduced.
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Welding characteristic of source Omicron Gama 160
Koudela, Michal ; Hála, Michal (referee) ; Kubíček, Jaroslav (advisor)
This bachelor’s thesis deals with the welding properties of the Omicron Gama 160 inverter power supply. The thesis is divided into the theoretical and the experimental parts; the theoretical part deals with the electric arc and the division and description of welding power supplies, especially the Omicron Gama 160. In addition it describes the issues of the selection of suitable electrode and welding parameters and the definitions of the most frequent welding defects including the procedures to prevent them. The second part consists of the experimental verification of the suitable electrode and welding parameters selection. On the basis of the experiment there were elaborated the welding procedure specifications (WPS). The experiment verified that the Omicron Gama 160 power supply is a machine with good price/performance ratio, suitable e. g. for assembly and welding works in a home workshop.
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Automatizovaná obnova a testování konzistence záloh na platformě Proxmox
Koudela, Michal
This bachelor thesis deals with the design and implementation of a mechanism that automates the restoration and consistency testing of backups of virtual machines running on the Proxmox platform. First of all, requirements for the resulting solution are defined. This is followed by a description of the current enterprise infrastructure related to backup creation. Then a mechanism is designed and implemented that automatically restores backups and tests the availability of services running on the restored virtual machines. The result of this thesis is a new network segment within the enterprise network, where restorations and tests take place. Information about completed tests is presented to network administrators through a web-based graphical user interface.
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Descriptor lists for irises, peonies and daylilies in the Průhonice Botanic Garden
Sekerka, Pavel ; Blažek, Milan ; Blažková, Uljana ; Caspers, Zuzana ; Macháčková, Markéta ; Fáberová, I. ; Papoušková, L. ; Matiska, P. ; Koudela, M.
In 2015, the Council of Plants Genetic Resources agreed to include genus Hemerocallis (daylily) and genus Paeonia (peony) into the collections of genetic resources of the National Program. In addition to the selection of plants suitable for the National Program, we started to prepare descriptor lists for these genera in cooperation with students of the Department of Horticulture Faculty of Agrobiology, Food and Natural Resources Czech University of Life Science, Prague. The descriptor list was supposed to cover botanical characteristics of wild species as well as the advanced garden ornamental varieties, because the species of peonies and daylilieas are medicinal plants and it is therefore appropriate to incorporate them in the National Program. At the same time, it turned out that the descriptor list used for Iris is intended primarily for bearded irises (Iris subgen. Iris). However, in the last twenty years, the Czech breeders have specialized also in other groups of irises, especially in Siberian and Japanese irises and Spuria group, which don’t have any beard on outer tepals and have other differerent characteristics from the subgenus Iris. Therefore, we have decided to extend the existing descriptor list to cover the whole genus except bulb irises.
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Passengers claims in air transport under the Regulation (EC) of the European Parliament and of the Council No. 261/2004
Koudela, Martin ; Zavadilová, Marta (advisor) ; Pfeiffer, Magdalena (referee)
Passengers claims in air transport under the Regulation (EC) of the European Parliament and of the Council No. 261/2004 Abstract The subject of this diploma thesis is the claims of air passengers, especially those arising from Regulation (EC) 261/2004 of the European Parliament and of the Council, but also according to other regulations of private international law. The thesis is divided into four parts, which, with regard to the nature of the topic, combine both theoretical and practical aspects. The first part provides an introduction to the issue by setting it in the historical context of civil aviation regulations and then discusses important documents in the field of air passenger rights. In particular, it compares these documents with each other and provides the reader with a practical overview of these documents. The second part deals with the Regulation (EC) 261/2004 of the European Parliament and of the Council, which is the central legal regulation of this work. First, the author describes the context and process of adoption of the Regulation and then deals with the individual parts, while supplementing the theoretical interpretation with numerous references to the case law of the Court of Justice of the European Union. Subsequently, the circumstances of the ongoing amendment of the Regulation are...
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Designing of new classifiers for peony, daylilies and non-bearded irises in the Průhonice botanic garden.
Sekerka, Pavel ; Caspers, Zuzana ; Macháčková, Markéta ; Papoušková, L. ; Koudela, M.
With accepting new genera (Hemerocallis, Paeonia, Iris subgen. Limniris) into National Program for Genetic Resources, a need for creating new classifiers for cultivar description has risen. When proposing classification characteristics, we have resulted from botanical monographies of the genera, existing classifiers and from experience in cultivar description. In creating and evaluation of the classifier we have cooperated with leading institution, Gene Bank of Crop Research Institute, and Department of Horticulture (FAFNR) at Czech University of Life Sciences, which has submitted it as a diploma and a bachelor thesis. New classifiers will be published in 2019 in GRIN Czech database.
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Effect of a cultivar and thermal treatment of seeds in selected vegetables at early growth phase on the sensitivity to infection by important fungal pathogens
Novotný, Čeněk ; Koudela, M. ; Svobodová, Kateřina ; Nedorost, L. ; Aust, R. ; Kocourek, F.
The methodology is focused on the effect of selected factors on the development of important vegetable illnesses: Alternaria brassicicola dark leaf spot of cabbage, A. dauci carrot leaf blight, and Botrytis aclada onion neck rot and Peronospora destructor onion downy mildew. In the case of A. brassicicola, A. dauci and B. aclada, the plants in a defined stage of development were infected by the strains of fungal phytopathogens originating from acknowledged collections. In the case of P. destructor the plants were infected by a fungal strain obtained from a field plant culture massively affected by this phytopathogen. The effect of the cultivar used and of the seed thermal treatment on the development of the above given phytopathogens was investigated. It was found that, in the case of the cultivars used, the interpretation of the results had to include the factor of the cultivar´s earliness that was important with respect to the resistance to the fungal pathogens.
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Effect of selected factors on the yield and health status of cabbage, carrot and onion
Koudela, M. ; Novotný, Čeněk ; Nedorost, L. ; Kocourek, F. ; Svozilová, L. ; Brožová, L. ; Doležalová, J. ; Kubíček, M.
The presented methodology summarizes the results of field experiments documenting that the selected factors influenced the development of important diseases, namely: 1. Alternaria blight cruciferous of head cabbage (in the years 2012-2013) (caused by Alternaria brassicicola) 2. Alternaria leaf spot of carrot (in the years 2012-2013) (caused by Alternaria dauci), and 3. Blight of onion and onion neck rot (in the years 2013-2014) (caused by Peronospora destructor and Botrytis aclada, respectively). The evaluated factors were: variety, crop density (carrot and onion, only), year and location. It is necessary to take into account the earliness of evaluated cultivars that also represents an important aspect of variety resistance to pathogens. In the annex, there are diagrams showing the course of air temperature and air humidity as well as the length of moistening period of leaves at both experimental locations in Troja and Svijansky Újezd in the individual years. Changes of these variables significantly influenced, in interaction with the other factors, the development of phytopathogenic fungi on the infected plants in the individual years.
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