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Properties of the utility function in methods of MCDM
KADLEC, Josef
This thesis was concetrated on the value of utility function properties in the application of multi-criteria variance estimation models. The aim was to identify the deficiencies in the current utility function and to find the optimal alternative. Our study is based on the analysis of a case example involving the selection of an apartment for a student seeking accommodation. The relevance of different features of the utility function and their influence on the overall evaluation and decision making was investigated. Analytical methods and models were used to quantify this issue. The thesis was concluded by discussing the impact of identified utility function deficiencies on the evaluation results and suggesting a more appropriate utility function for multi-criteria variant evaluation applications. This study was sought to contribute to a better understanding of the influence of utility function characteristics on the quality of evaluation and decision making in multi-criteria analysis.
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Car-battery charger
Kadlec, Josef ; Procházka, Petr (referee) ; Červinka, Dalibor (advisor)
This bachelor’s thesis is considered by projection and construction of the car battery charger with switching source. One-pulsed conducting changer is base of this charger. The charger is intended for accumulators of nominate voltage 6 and 12V. Accumulators are charged by method of constant voltage with current limitation of 0.5A, 5A, 20A and 50A. Value 50A has reason during stating of car for example in winter, because the charger helps to battery. The device is equipped with additional protection, which protects the charger and also the accumulator and the supply network. Three pilot lights are the next equipment of the device.
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Motor parameter identification for laboratory stand
Lidmila, Petr ; Kadlec, Josef (referee) ; Červinka, Dalibor (advisor)
The goal of introduced thesis is to provide measurement of the engines used as a tutorial laboratory stand in the course “Electric drives”. Due to the absence of appropriate measurement centre, the main emphasis is laid on the modernization of older dynymometer, which is going to be used by the students. Dynymometer has been equipped with the electric speed and torque vbmeasurement, data from these measurements are displayed and evaluated by the digital devices very clearly and precisely. Engines parameters measurements has only marginal importance in this thesis.
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Accumulator tester
Pisca, Marek ; Kadlec, Josef (referee) ; Cipín, Radoslav (advisor)
This master´s thesis is dealing with the theory of Li-ion accumulators and theirs charching. In this thesis has been designed accumulator tester for automatic charging and discharging of Li-ion accumulator. This tester is controlled by microprocessor.
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Flyback power supply from the mains
Polián, Josef ; Kadlec, Josef (referee) ; Huták, Petr (advisor)
This bachelor thesis deals with the issue of switching power supplies. The aim is to design regulated switching power supply that will be powered from the mains. The first part focuses on theoretical knowledge of the switching power supply and describes circuits of TOPSwitch. Another part is the actual design of all circuits. The last part is the actual implementation of switched mode power supply and measurement that verifies its functionality and features.
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Step down convertor
Koutný, Martin ; Kadlec, Josef (referee) ; Cipín, Radoslav (advisor)
Thesis deals with the evaluation of the solutions and the design of the DC voltage converters. The first describes the different types of converters, which subsequently choose types of resources for the construction. In other chapters of the work devoted to the design of schemes, selected types of sources and selection of circuits and components therefor, for the manufacture, including calculations cooling performance parts. The last chapter is devoted to the description of the structure and measurement of the produced sources. The measurements are primarily deals with the verification of the specified parameters.
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