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Prediction in Projects using Markov Chains
Doležal, Jan ; Buřita, Ladislav (referee) ; Kreslíková, Jitka (referee) ; Lacko, Branislav (advisor)
This thesis is focused on possibilities of a project development prediction and a decision support for managers of those projects, which is an up to date topic in the present time turbulent environment. Project is understood as a stochastic process with discrete states and discrete time in this thesis. This approach could be represented by discrete moments of finding out project state. Project is compared to a finite automaton and Markovs chains are subsequently used. State model of the project based on Earned Value Management method is created in the proposal part of this thesis and there are state transitions probabilities. There are adjustments of the model designed consequently so the model is capable to fit some concrete situation closely. Designed proposals are tested in different situations to prove their value in the experimental part of this work.
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Suitable lubricants for deep drawing of stainless steel
Doležal, Jan ; Chudík, Ivan (referee) ; Lidmila, Zdeněk (advisor)
This thesis solves problems of design and construction of testing equipment for testing lubricants for deep drawing and experimental evaluation of suitability of different types of lubricants for specified tests conditions. Most of all it is about finding environmentally friendly lubricant which would provide similar results as lubricants containing chlorine compounds when drawing a stainless austenitic Cr-Ni steel 1.4301. As for lubricants provided for testing by leading home and abroad manufacturers, the ATLAS 3374-140 from Quaker Chemical and the WISURA ZW 3356 from FUCHS, were evaluated as the most suitable environmentally friendly lubricants.
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Minimizing the effect of interference on wireless network
Doležal, Jan ; Kyselák, Martin (referee) ; Škorpil, Vladislav (advisor)
This thesis is concerned the technology with technologies of transfer through wireless devices. It is about possibilities of optimization of transfer in wireless net, especially of the reduction of interference influence. The first part is about theory and the standards development of wireless technology. There are methods and principles used in wireless technologies. The second part is a practical measuring and testing of an internal wireless net, with the emphasis being on the source of interference influence. Measuring was focused on interference between access points and was not about meteorological influence. It continues with theory and testing of interference of the microwave oven in our wireless net. Then, it is a practical demonstration of interference in an external environment. There are practical examples of interference between different providers’ nets on the same area and solutions to prevent or to cancel this interference. In next part of work the wireless net is parsed and described in a given territory. Here is described the way how to precede the reciprocal interference and eventually how this mutual disturbance suppress. Consequently, our net is optimized for customer growth and for today’s options of newer and more powerful components for wireless transfer. Finally there are two laboratory tasks. The first one is about practical measuring and testing of wireless net’s parameters and the second one is about simulation of wireless networks in the Opnet program.
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Sustainable energy sources
Doležal, Jan ; Nerud, Pavel (referee) ; Škvařil, Jan (advisor)
This bachelor’s thesis is a recherche dealing with sustainable energy sources. It lists and describes the various sources and shows their operating principles. In the last part it evaluates their current use in the Czech Republic and the possibilities for further development from economic and technical point of view.
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Coating methods for cutting tools
Doležal, Jan ; Madaj, Martin (referee) ; Humár, Anton (advisor)
Bachelor work describes methods of coating of cutting tools and their technical characteristics. The work is given below the current product range of manufacturers of coated cemented carbides. At the end of this work is treated the development of coating cutting tools and types of applied coatings.
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Optimization and use of standardized manufacturing routines for the Common Rail Flange production of high pressure pumps.
Doležal, Jan ; Prokop, Jaroslav (referee) ; Píška, Miroslav (advisor)
Objective of the Project of optimization and introduction of standardized procedures in flange production is to plan, determine and introduce optimal procedures based on time scan and MTM analysis; to determine standards, to establish standardized procedures for multi -machine operation and visual control and to train personnel according to new procedure. Project is expected to stabilize process, decrease work in process production, improve quality and increase volume of flange production to 2200 pieces per day for one production line. Furthermore to provide comparison of standardization influence on operations in flange production process, to perform quantitative analysis of several working instructions on visual control workplaces by statistics method (R&R study).
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Draft cooling system for food
Doležal, Jan ; Vlček, Petr (referee) ; Formánek, Marian (advisor)
The bachelor thesis deals with the cooling systems of food premises. The theoretical part focuses on the issue and various possibilities of direct cooling. The result of the calculation is design of optimal cooling system for object to poultry processing.
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Regulatory hydraulics of tractors and its practical use
DOLEŽAL, Jan
The work deals with the regulation hydraulics for tractors and its practical use. The theoretical part includes the construction of three-point hinges, variants of regulatory systems and the impact of regulatory systems on the use and transfer of power. The practical part deals with the use of hydraulic control in practical operation.
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Jan Václav Stich - The Works for french Horn
Doležal, Jan ; Čoček, Alois (advisor) ; Divoký, Zdeněk (referee) ; Hlaváč, Jiří (referee)
This thesis describes Jan Václav Stich ? Giovanni Punto, famous Czech virtuoso, horn player and composer of 18th century. The first chapter is concentrated on Stich?s life, the following one on his work. Afterwards, three horn concertos are analyzed, namely Concerto No 5, Concerto No 7 and Concerto No 10. The last chapter compares three recording made by different horn players ? Vladimíra Klánská-Bouchalová, Radek Baborák and Barry Tuckwell.
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Robert Schumann: Concert Work for French Horn
Doležal, Jan ; Divoký, Zdeněk (advisor) ; Sušický, Jiří (referee)
This work is describing Konzertstück for four French Horns and Orchestra, op. 86 written by German romantic composer Robert Schumann. Life, works and importance of the composer are noticed. Before the main subject also other Schumann?s works for french horns are described ? horns in his Symphonies, Adagio and Allegro for French Horn and Piano, op. 70 and Jagdlieder for Male Voices an Four French Horns, op. 137. Afterwards, Konzertstück is analyzed from historical, formal and execution points of view. Finally, three recordings are compared.
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