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Construction of sample exercises for model of systems wiring
Pěcha, Jiří ; Bátora, Branislav (referee) ; Macháček, Jan (advisor)
In this thesis explains the term of systemic wiring and its spread in the Czech Republic. It is written a brief overview of manufacturers which are interested in this area. Comparison of advantages and disadvantages with classic wiring. For further meeting is suggested a laboratory panel which contains instruments from company ABB which belongs to international group Konnex. At the concussion of this thesis is created demonstrational application for controlling of instruments.
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Computer controled inteligent elements of electrical instalation
Kolář, Milan ; Macháček, Jan (referee) ; Bátora, Branislav (advisor)
This bachelor thesis deals with the field of intelligent wiring. In the first part, there is an explanation of how the inteligent wiring works, its main parts, topology and categorization. In the second part, there is an example of practical application which is built on the elements of the INELS system. There is also a comparison with the classic (conventional) wiring. It is followed by programming and setting up of the wiring with the included software IDM. Finally, there is an example of visualization, a possibility of remote control and function management with a data net.
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Chemical and Physical Properties of Impact Glasses
Křížová, Šárka ; Skála, Roman (advisor) ; Kohout, Tomáš (referee) ; Macháček, Jan (referee)
Abstract This work deals with microstructural features, chemistry and the search for traces of a meteoritic component in proximal tektite-like glasses from the Zhamanshin impact structure (Kazakhstan; further abbreviated as ZIS), and tektites from two strewn fields - moldavites (Czech Republic) and Australasian tektites (Laos; further abbreviated as AAT). Detailed microstructural observations and subsequent chemical and mineralogical studies of various types of inclusions were also performed; these inclusions were mostly found in the studied types of glasses for the first time ever. The aim of this PhD thesis was to (i) describe the microstructure of all studied glasses with a focus on yet unobserved microstructural phenomena, and (ii) try to determine the admixtures of meteoritic components in these glasses. In addition, the available target rocks, which could be a source of moldavites or AAT, were also studied. The microstructures of the studied glasses mutually differ. This is due to a diversity of parent materials and different glass formation conditions occurring during a particular impact event. A new type of "composite splash-form" has been identified among the ZIS glasses, whose chemical composition does not fit into the previously defined groups of irghizites or basic "splash-forms". For...
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Bezpečnost práce v lesnictví
Macháček, Jan
Lesnictví je odvětví, které se z hlediska rizikovosti práce trvale řadí na jedno z předních míst žebříčků. Důvodem je skutečnost, že většina prací v lesním hospodářství probíhá téměř po celý rok ve vnějším prostředí za měnících se klimatických podmínek a také podmínek daného pracoviště. Dále tyto práce do jisté míry ovlivňují i na ně navazující pracovní činnosti. Práce v lese je velmi fyzicky namáhavá, vyžaduje zdravotní a fyziologické předpoklady a také značnou předvídavost. Ve všech ohledech se tedy jedná o práci velmi rizikovou. Například těžební činnost představuje v celosvětovém měřítku nejrizikovější aktivitu lesního hospodářství s nejvyšším podílem smrtelných úrazů. Častá jsou rovněž i onemocnění související s výkonem práce nebo vzniklá kontaktem s živými organizmy.
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Tempering of 3D FDM printed parts
Macháček, Jan ; Koppová, Aneta (referee) ; Zemčík, Oskar (advisor)
The bachelor thesis covers 3D printing methods, parts of a 3D printer, materials used to 3D print and the theoretical part od tempering 3D printed parts. The practical part consists of designing the experiment, results of tests and an econimical a functional evaluation.
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Focus techniques of optical measurement of 3D features
Macháček, Jan ; Honec, Peter (referee) ; Janáková, Ilona (advisor)
This thesis deals with optical distance measurement and 3D scene measurement using focusing techniques with focus on confocal microscopy, depth from focus and depth from defocus. Theoretical part of the thesis is about different approaches to depth map generation and also about micro image defocusing technique for measuring refractive index of transparent materials. Then the camera calibration for focused techniques is described. In the next part of the thesis is described experimentally verification of depth from focus and depth from defocus techniques. For the first technique are shown results of depth map generation and for the second technique is shown comparison between measured distance values and real distance values. Finally, the discussed techniques are compared and evaluated.
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Comparison of physical demands of fifteens and sevens rugby
Macháček, Jan ; Kaplan, Aleš (advisor) ; Hojka, Vladimír (referee)
Thema works: Comparison of physical demands of fifteens and sevens rugby Student: Jan Macháček Supervisor: Aleš Kaplan Aims: Outline the differences between rugby 7s and XVs based on a literature search. An analysis of the literature to find the terms that define the issue. Methodology: The method of literary research was used in the work, mainly from foreign sources. To meet the goal, concepts were chosen that helped to compile the idea of the structure of sports performance in rugby sevens and fifteens. Results: Over 250 electronic sources were acquired and researched as part of the fulfillment of the objectives of this work, based on the definitions of search keywords. All these sources were, with exceptions, in the English language. Of these, 60 articles covered men's sevens, 14 women's 7s, 68 men's and 7 women's XV, 32 youth rugby. Further 66 sources consisted of statistical yearbooks, periodization, talent identification articles, and coaching manuals. Three studies were identified, using a research method to compare aspects of different versions of rugby, but not in a systematic comprehensive form nor with the inclusion of both genders. Results of the research showed clear differences in per-minute running distances, higher frequency and length of sprints and high-intensity runs in the...
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Conceptual development of the local distribution system Prototypa, a.s.
Vrtal, Matěj ; Macháček, Jan (referee) ; Radil, Lukáš (advisor)
This thesis is focused on the opportunities of conceptual development of the local distribution system Prototypa, a.s. At first, there is descripted condition of the current substations and internal electricity distribution system. Practical part of the thesis is dedicated to the evaluation of the construction of new transformer station and projection proposals of connection of the high-power charging station and new electric power supply.
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