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Design of Experiment for Non-Stationary Processes of Production
Jadrná, Monika ; Macák, Tomáš (advisor)
The doctoral thesis is concerned with the services sector and the area of mass production. Particularly, the optimization of the product portfolio of the travel agency and the optimization of production rounds of ammunition.
The theoretical part deals with the current overview of discussed topic. Further, the terminology and methods of the decision-making process are defined to support decision making. The theoretical basis of research focused on the choice of appropriate input variables in the area of services, and on the choice of a particular material option in the production area and appropriate equipment for the production. The theoretical part forms the basis for the practical part of the thesis.
For the doctoral thesis was chosen an enterprise operating in the defined sector. Product portfolio for the services sector is optimised using Fuzzy logic and Fuzzy sets so that the enterprise can maintain its competitiveness in todays highly ambitious market. Product portfolio for manufacture is optimised for achieving desired properties of the product.
The main aim of the thesis is to propose a new methodological approach for the management of selected business processes in their nonstationary time course. The aim of the practical implementation is to verify the functionality of the proposed methodological approach, both in the area of services and in the field of mass production.
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Design of Experiment
Holec, Tomáš ; Popela, Pavel (referee) ; Bednář, Josef (advisor)
In this thesis, the design of experiment is studied. Firstly, a theoretic background in mathematical statistics necessary for understanding is built (chapter 2). The design of experiment is then presented in chapters 3 and 4. Chapter 3 is divided into several subchapters in which its brief history is provided as well as its complex theoretic description (basic principles, steps for planning, etc.). Chapter 4 deals with particular types of the design of experiment (Factorial experiments or Response surface design). Simple examples are provided to illustrate the theory in chapters 3 and 4. Last part of the thesis is strictly practical and focuses on an application of the theory for particular data sets and its evaluation (chapter 5).
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Operational safety of mobile robots in indoor environment
Vojta, Jakub ; Věchet, Stanislav (referee) ; Krejsa, Jiří (advisor)
During cooperation with the Bender Robotics company a need for operational safety assessment of an autonomous mobile robot (AMR) emerged. Operational safety evaluation is a step towards mass production of the studied robot. Market entry of a product requires a string of various actions and safety assessment is one of them. For risk identification and severity rating were used legal requirements, best practice given by standards, FMEA method, experiment and RIPRAN method. Threats, possible scenarios and risks analysis is systematically discussed through all areas of operation of the robot, from design and construction to control software. All the steps are described in logical order. Starting with information research, going on with series of analysis and ending with suggestions for increased operational safety of autonomous mobile robots.
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Production process optimization
Drábková, Veronika ; Jankových, Róbert (referee) ; Fiala, Alois (advisor)
This master´s thesis is aimed at the strategy and implementation of DOE (planned experiment) and QFD (quality function deployment) in business. There are described about these methods. It deals with their use for a given problem. The last section provides a possible procedure in the enterprise.
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Production process optimization
Hejzlar, Aleš ; Vacek, Jan (referee) ; Fiala, Alois (advisor)
This diploma thesis deals with the production process optimization. The cutting operation and the lathe-turning issue is described in this thesis. In the practical part the production process is analyzed, the designed experiment (DOE) is suggested and evaluated. In the end of the practical part there is the evaluation of the machined material in the light of microstructure. On the basis of the partial findings the enclosures are done and the recommendations leading to the production optimization are suggested.
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Characterization of VTR-7000 deposition furnace
Petrová, Lenka ; Ulrych, Jan (referee) ; Semiconductor, Vlastimil Hanáček, ON (advisor)
Tato práce je zaměřena na problém nastavení CVD pece pro produkci ve výrobním závodu. Problém je, že přesná zařízení jako depoziční pece musíbýt pro produkci nastaveny až na místě, kde budou provozovány. Toho je možno docílit pomocí statistických nástrojů jako například DOE (design of experiment). Vstupní hodnoty procesu ovlivňují výstupy. Úkolem DOE je definovat, jakým způsobem. Z předchozího DOE provedeného v závodě COM1 vyplývají některá nastavení proměnných. Jiné proměnné musí být nastaveny dle předchozích zkušeností. Úkolem práce je seznámit čtenáře se základy depozice z plynné fáze a konceptem DOE. Následně je navržen vlastní experiment. Tento je vyhodnocen a výstupem práce je pak ideální nastavení reaktoru. Čtenáři bude též nepřímo představen proces DMAIC, který byl použit při samotném experimentu a vyhodnocování v ON Semiconductor, Rožnov pod Radhoštěm, CZ4 WFAB.
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FET aging model
Novosád, Jiří ; Legát, Pavel (referee) ; Semiconductor, Aleš Litschmann, ON (advisor)
This work deals with problems aging of unipolar transistors. In theoretical parts are described the mechanisms which causing aging unipolar transistors and way leading to the restriction the change of parameters in time. The measurement and data evaluation was built on theoretical knowledge. The model of aging FET is a result of this works; it is creating extraction of data from measured data. Finally, the degradation constants are evaluation from this data. This FET aging model is easy to use in simulators of electronics circuits including aging simulations (e.g. ELDO).
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Statistical analysis in quality management
Chlebounová, Klára ; Knobloch, Josef (referee) ; Zahálka, Jiří (advisor)
The goal of this thesis is to create a literary research on the methods of statistical data processing in the field of quality management and to make their overview along with the possibilities of using them. A practical example shows how to determine manufacturing process stability and qualification determining, using the Shewhart’s control chart and capability indexes. This methodics should serve as a guideline for manufacturing process evaluation. As a brief summary of generally used statistical data processing methods, this thesis should serve all, who are engaged in quality management.
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Design of experiment on a washer extractor
Těthal, Josef ; Šomplák, Radovan (referee) ; Kuba, Pavel (advisor)
This bachelor thesis deals in the first part with research regarding the laundry process and introduction to design of experiments. The next part, which is the output of this work, describes an experiment made. The experiment defines the impact of rinsing temperature and spin speeds on consequential humidity of the laundry.
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