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Technologie vstřikování zkušebních těles z termoplastů / Technology of injection molding of thermoplastic test specimensKhamzin, Yersin January 2021 (has links)
The diploma thesis focuses on the optimization of technological parameters of plastic injection molding and the study of the influence of technological parameters on the quality of molded test specimens’ type 1A. The quality of molded parts for 3 types of polypropylene (PP) with different melt flow rate (Mosten GB 002, Mosten GB 218, Mosten MA 230) and 1 type of polystyrene (PS) (Krasten PS GP 154) was evaluated in terms of dimensional stability and weight. The contribution of software for modeling the plastic injection molding process was evaluated in this work. SOLIDWORKS Plastics software was used to optimize technological parameters. The construction of the bodies, mold and cooling system was constructed, and test bodies were produced on the basis of parameters obtained from the simulation of the injection molding process. Their quality parameters were compared with a 3D model and for each of the studied materials the optimal technological parameters were selected in terms of quality and the degree of influence of individual injection parameters on the quality of moldings was evaluated. The accordance of the results of the theoretical simulation with the real experiment was proved and a computational module independent of the optimized quality parameters, generally suitable for optimizing the quality parameters of the injected parts, was developed.
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Regulace provozu autonomních solárních systémů / Control system used in autonomous solar systemSlezák, Pavel January 2008 (has links)
This thesis dealing with description and of autonomous solar systems and algorithms for control of decision-making mechanism. Optimal set of these machanism has effeect in raise of efficiency in hole autonomous system. In practical purposes propose create one by using microprocesor ATMEGA8, which measure all electrical data in system and control all decisions of implemented algorithm.
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Statistické plánování experimentů pro účely optimalizace kvality / Design of experiments for quality optimizationHavlásek, Radim January 2009 (has links)
This thesis is aimed to Design of Experiments methodology. Main purpose of this thesis is to create detailed materials for lessons of Design of Experiments in Quality Control courses. Thesis contains case studies which are applicable for education purposes. Design of Experiments has been applied for solder joints quality evaluation. Solder joints have been modeled in software ANSYS and finite element method has been applied for thermomechanical stress evaluation.
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Zavedení účinného systému HACCP ve firmě Cutisin s.r.o. / Implementation of Effective HACCP System in Cutisin s.r.o.Hájková, Marcela January 2009 (has links)
This Master´s thesis is focused on the proposition of system HACCP as appropriate solution incurred complaint. I start from the theoretical bases and from analysis of the current state in the company Cutisin s.r.o. The particular part is included hazard analysis of single step of the process plan, critical control points in production, precautionary measures and corrective action.
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Podnikatelský záměr-rozšíření prodejní sítě / Business Plan-Extension of Sales NetworkDvorský, Jakub January 2014 (has links)
The aim of the dissertation is to prepare a business plan for the company called Vodoplast, situated in Zábřeh, which wants to open its retail store of plumbing materials and sanitary equipment at any time. The dissertation should become an important source of information leading to successful realization.
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Podnikatelský záměr-založení prodejny / Business Plan - The Establishment StoreFischerová, Lada January 2015 (has links)
The master´s thesis deals with the business plan for starting a new small business special burs with casting. The aim of the thesis is to design the business plan on the basis of analysis, plan and risk assessment as decision support tool for future realization.
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Podnikatelský plán pro založení vlastní firmy MARTart / The Business Plan for Starting Own Business MARTartKlusáková, Marta January 2015 (has links)
The diploma thesis focuses on build a real business plan for a newly established company MARTart, s.r.o. The business plan is a result of analysis based on a environment business as well as the primary method for a data acquisition market analysis. Also included is a detailed financial plan for the next years of business, giving an important information about the financial development of this company.
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Automatizované pracoviště pro měření vzduchotechnických veličin / Automatized working place for measuring of airflow parametersSmělý, Jakub January 2013 (has links)
This thesis describes the design work for the measurement of air values. The first part describes the airflow, pressure build-up in pipes and losses due to airflow losses. There is also a description of fans and explain their characteristics depending on the pressure generated by airflow. The next part describes the design of the measuring chamber, electronics and control for fully automatic measurement of air quantities.
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Spektrometrické metody pro výzkum huminových látek / Spectrometric Methods for Research of Humic SubstancesEnev, Vojtěch January 2016 (has links)
The main aim of doctoral thesis is the study on physicochemical properties of humic substances (HS) by modern instrumental techniques. The subject of the study were HS isolated from South Moravian lignite, South Bohemian peat, forest soil Humic Podzol and finally extract from brown sea algae Ascophyllum nodosum. With respect on determination of structure and reactivity of these unique “biocolloids”, standard samples (Leonardite HA, Elliott Soil HS and Pahokee Peat HS) were also studied. These samples were obtained from International Humic Substances Society (IHSS). All mentioned substances were characterized by elemental analysis (EA), molecular absorption spectroscopy in ultraviolet and visible region (UV/Vis), infrared spectroscopy with Fourier transformation (FTIR), nuclear magnetic resonance spectroscopy of carbon isotope 13C (LS 13C NMR), steady-state and time resolved fluorescence spectroscopy. Obtained fluorescence, UV/Vis and 13C NMR spectra were used for calculation of fluorescence and absorption indexes, values of specific absorbance and structural parameters respectively, which were used for fundamental characterization of these “biocolloidal” compounds. Infrared spectroscopy with Fourier transformation was utilized for the identification of functional groups and structural units of HS. Evaluation of infrared spectra is quiet complicated by overlapping of absorption bands especially in fingerprint region. This problem was overcome by Fourier self-deconvolution (FSD). Steady-state fluorescence spectroscopy was used for deeper characterization of HS with respect to origin, structural units, amount of substituents with electron-donor and electron-acceptor effects, content of reactive functional groups, “molecular” heterogeneity, the degree of humification, etc. Parameters of complexation of samples Elliott Soil with heavy metal ions (Cu2+, Pb2+ and Hg2+) were obtained by using modified Stern-Volmer equation. These ions were chosen purposefully, because the interaction of HS with these ions is one of the fundamental criteria for the assessment of the reactivity of HS. Key part of the whole doctoral thesis is time-resolved fluorescence spectroscopy. It is able to determine the origin of emission of HS by method Time-Resolved Area Normalized Emission Spectra (TRANES). The viscosity of micro medium about excited fluorophores of HS was determined by Time-Resolved Emission Spectra (TRES).
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Detekce a sledování objektů pomocí význačných bodů / Object Detection and Tracking Using Interest PointsBílý, Vojtěch January 2012 (has links)
This paper deals with object detection and tracking using iterest points. Existing approaches are described here. Inovated method based on Generalized Hough transform and iterative Hough-space searching is proposed in this paper. Generality of proposed detector is shown in various types of objects. Object tracking is designed as frame by frame detection.
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