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Supply proposal of a company
Chudoba, Filip ; Pavelka,, Vladimír (referee) ; Juřica, Pavel (advisor)
The master's thesis deals with possible adjustments in the company's inventory replenishment strategy, which are in accordance with the analyzed factors of the external and internal environment of the company and which respond to the problems arising in the input logistics processes in which this strategy is implemented. The proposed strategy adjustments bring a new perspective on inventory management through inventory optimization and categorization according to differentiated inventory management approach, even in relation to inventories that are subject to deterioration.
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Scientific Web Portal Generator
Pavelka, Petr ; Schwarz, Petr (referee) ; Smrž, Pavel (advisor)
Scientific web portal generator is a large project. It's purpose is to create a system for building web portals for providing the view of science publications of authors. One of the parts of this project is module for searching of homepages. The goal of this bachelor's thesis is the implementation of of this module using the program or script. Content of this thesis is to find the best way of method of extraction the semantic information from the marked text, design and development o the system and creating the test set for the purpose of testing. The output of this thesis should be prototype of program or script, which will generate XML file with the URL adresses of homepages of authors. System should have XML input. Almost entire thesis is about analyzing of this problem and choosing the best solution.
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Advanced Stochastic Programming Models in Power Engineering
Pavelka, Ondřej ; Štětina, Josef (referee) ; Popela, Pavel (advisor)
This diploma thesis applies stochastic optimization in the field of the power engineering. In the thesis first part, the needed mathematical theory is described, specifically mathematical, linear, nonlinear, integer and stochastic programming. The second part deals with the heating plant, in which heat is generated by gas and biomass boilers. The aim of this thesis is to design a model for the schedule planning of these boilers. The model is based on two stage stochastic programming with scenario approach. Then the model is solved by GAMS software. In the final part of the text, the focus is on the model sensitivity analysis and suggestions for future improvement.
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Industrial programmer Atmel AVR microcontrollers
Gryžboň, Jan ; Hanák, Pavel (referee) ; Pavelka, Ondřej (advisor)
The aim of this thesis is to design and implement an industrial programmer AVR microcontrollers from Atmel. The first section provides the theoretical knowledge of the AVR microcontroller. Furthermore, comparison of methods for programming the microcontroller and the selected method is an analysis of the speed of programming. The following is the entire design of industrial programmer which is implemented in the programming environment Eagle. In the penultimate part of the proposal is designed PCB. The final section is devoted to the revival of the programmer and programming.
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Emulator of 3.5" diskette drive using RS232 and SD memory card
Sedláček, David ; Hanák, Pavel (referee) ; Pavelka, Ondřej (advisor)
This thesis deals with the design of the 3,5" floppy drive emulator with ATMEGA microprocessor unit. The emulator has been designed according to the principles of designing electronic devices, there is also object-control application and firmware for a microcontroller, which supports MFM coding. The thesis also lists all the formats of data stored or transmitted along with some flowcharts.
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Influence of temperature on light-technical parameters of LED
Sláma, Pavel ; Štěpánek, Jaroslav (referee) ; Pavelka, Tomáš (advisor)
This thesis deals with LEDs and how temperature influences their parameters. In the first part it is analyzed how semiconductors and semiconductor junctions work, which is fundamental for understanding mechanisms of diodes. Next up is description of electroluminescence and basic description of physical principles, on which it works. Following part is supposed to introduce reader to electro-technical parameters and powering possibilities of LEDs. Following chapter focuses on description of lightning-technical parameters. It aims to describe their meaning and their relation to LEDs. Next part is about influence of temperature. Firstly, it names the parameters which are altered by temperature change. Follows the description of thermal management and its influence on right behavior of LED diodes. The last part contains construction of measuring workplace for analyzing temperature influence on lightning-technical parameters of LEDs. Measurement of chosen electrical and lightning parameters follows up.
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The system for administration keys trough the using RFID
Veselý, Aleš ; Šteffan, Pavel (referee) ; Pavelka, Ondřej (advisor)
This thesis dealing with description and system design for administration keys trough the using RFID technology. The main task of this thesis is create a complete controlling algorithms for this system include operating program for platform Windows. Practically output of this thesis is system controlled by microcontroller, which make a decision based on authorisation whether man in question have an accession to the system and which keys he can take.
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Design and construction of advanced LED lighting system for aquarium
Novák, Pavel ; Škoda, Jan (referee) ; Pavelka, Tomáš (advisor)
The first part of this thesis is devoted to the presentation of light and the basic quantities describing the light and its properties. These quantities are then used to describe the light sources, which is the thesis engaged in in the following section. The light sources are divided into thermal and luminescent. Then, there are described the basic parameters that are monitored when choosing the light source, such as luminous flux, color rendering index, correlated color temperature, mean lifetime, beam angle. Next, the thesis engages in solar radiation, spectrum of radiation, process and the color temperature of daylight and turns to the requirements for the aquarium lighting. According to the requirements for the aquarium lighting, the lighting design is done and it is sought an ideal solution for the aquarium lighting using LEDs. In conclusion of this thesis, there is designed an effective cooling for the LEDs in order to maintain their lifetime and luminous flux as long as possible. Then, it is designed and realized control of the LEDs by the pulse width modulation, prepared software for controlling the lighting depending on the daytime to meet the demands on the aquarium lighting while monitoring the process of the daylight and to look natural.
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Financial Plan for Rehabilitation of water distribution network
Pavelka, David ; Svoboda, Pavel (referee) ; Kučera, Tomáš (advisor)
This bachelor thesis explains the planning of rehabilitation of water supply network. Also describes the planning of rehabilitation funding and all the required assessment necessary to that. Thesis explains the issues of rehabilitation planning, options of rehabilitations planning, comparison problematice at small village against big company. It is shown diference between Czech republic and Georgia. At the end are prepared a plans for financing the rehabilitation of the water supply network of Moravské Knínice village and Hodslavice village.
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