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A process of making a coffee table
Rehák, Andrej ; Varhaník, Matúš (referee) ; Koppová, Aneta (advisor)
The bachelor's thesis deals with the design and description of individual production processes of a coffee table. It contains a summary of today's trends in the production of tables, and making its own original design and suitable structural joints. Furthermore, the work focuses on the selection of suitable production technologies, used machines and tools for the production of the proposed product. Part of the work is necessary drawing documentation, production process of the selected part and photographs from the production itself.
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Stanovení pružnostních a pevnostních charakteristik dřeva v čerstvém stavu
Ressler, Ondřej
The topic of this bachelor's thesis was the determination of the mechanical properties of wood in its fresh state. The investigated mechanical properties of the wood were investigated on summer oak wood (Quercus robur L.). For the experiments, three oak trunks were secured from which samples were made. Determination of elasticity and strength characteristics was determined by a destructive method with the help of a universal ZWICK Z050 machine. Destructive methods included tests in compression, tension and bending. Physical properties (density and moisture), strength limits and elastic moduli were determined for these tests. The investigated mechanical properties of oak were determined for two moisture conditions. It has been verified by statistical tests that heartwood has greater strength than sapwood. As a result, a correlation between moisture content and ultimate strength and flexural modulus of in bending.
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A process of making a coffee table
Rehák, Andrej ; Varhaník, Matúš (referee) ; Koppová, Aneta (advisor)
The bachelor's thesis deals with the design and description of individual production processes of a coffee table. It contains a summary of today's trends in the production of tables, and making its own original design and suitable structural joints. Furthermore, the work focuses on the selection of suitable production technologies, used machines and tools for the production of the proposed product. Part of the work is necessary drawing documentation, production process of the selected part and photographs from the production itself.
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Obohacování nápojů přídavkem antioxidantů
Šulganová, Simona
The Diploma thesis deals with the topic enrichment of beverages by additional antioxidants and has been processed at the Faculty of Horticulture, Mendel University in the Institute of Post-Harvest Technology of Horticultural Products. The thesis is divided into theoretical and practical part. In the theoretical part there are described antioxidants, free radicals, antioxidant capacity, means of antioxidant measurement in food, beverages containing antioxidants like fruit juice, tea, wine, and beer. There is also described chemical structure of food. Practical part deals with measurement of antioxidant capacity by DPPH and FRAP method and volume of polyphenolic substance in distillery samples with extracted oak wood dried by several temperatures and comparison of these samples with the commercial sample, subsequently sensory analysis of these mentioned samples. From results it´s obvious that distilleries can be enriched by additional wood especially by wood dried by 175 °C. Sensory analysis has proved that enrichment of the distillery by oak chips can significantly improve it´s quality.
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