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Diagnostic methodology of timber construction
Zouharová, Kateřina ; Heřmánková, Věra (referee) ; Anton, Ondřej (advisor)
The thesis is focused on the appraisal of a wooden roof construction in reconstructed family house in the village Lomnice. The first part describes the structure and properties of wood, in the next section followed by a description of diagnostic methods. The final chapter is complete diagnostics of wooden roof truss with remediation measures. Rating roof truss was based on a survey of sensory and instrumental methods. In the first part was determined the type of roof truss system. In the next section was researched damage of elements and his causes. Remedial measures were established for each type of damage to the components resist any attack as long as possible.
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Risk analysis of pest infestation of wooden structures
Brada, Stanislav ; Hunková,, Veronika (referee) ; Šebesta, Petr (advisor)
The thesis deals with risks of defect occurrences in a wood construction. Wood constructions and their parts are exposed to a number of negative factors influencing their lifetime. The aim of the thesis is to give an outline of risks of defect occurrences in a wood construction attacked by pests and propose measures for their elimination.. These steps are closely described in the individual parts and processes. Part of the thesis is the FMEA analysis, resulting in appropriate chemical protection, a factor considered before incorporation into the construction. The analysis and its outcomes are important for improvement of the wood construction lifetime.
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Microbial contamination of photographic materials
Ouředníčková, Veronika ; Dzik, Petr (referee) ; Veselá, Mária (advisor)
This diploma work is focused on a study of microbial contamination of photographic materials. In the first part of this work the information about the archive and museum microbial contaminations were collected. The most frequent contaminants of photographic collections – Penicillium chrysogenum and Aspergillus niger were studied. Their activity on photographic papers Fomaspeed and Fomabrom was evaluated. It was found that at the given experimental conditions the image layers of Fomaspeed paper are resistant to fungi mycelium growth. On the other hand, the Fomabrom paper image layer was irrecoverably damaged by action of fungi mentioned above. The degree image layer deterioration was evaluated with the aid of sensitometric curves.
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Moulds and residential buildings
Dvořák, Tomáš ; Trachtová, Štěpánka (referee) ; Omelková, Jiřina (advisor)
Bachelor’s thesis is aimed at moulds and residential buildings. At moulds occurrence and at conditions for their growth and reproduction. Thesis defined their distribution, morphology, metabolism and type of reproduction. Describe most important genera of moulds, their identification and procedure during their elimination. Practical part is aimed at two methods of determination in two different types of residential building, in prefab house and in single family house. The object of practical part was to determinate the genus of occurring moulds
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HVAC systems for sustainable buildings
Švub, Oldřich ; Rubina, Aleš (referee) ; Rubinová, Olga (advisor)
Diploma thesis deals with relationship between the sustainability of buildings and indoor climate. The aim of the diploma thesis was to design the air conditioning system for operating theaters. In the experimental part the aim was to provide total microorganisms counts and total count of micromycetes on samples taken from filters. The work is divided into three parts: theoretical, design and experiment.
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The issue of biotic attack of ETICS
Těžká, Adéla ; Žák,, Antonín (referee) ; Žižková, Nikol (advisor)
This bachelor thesis deals with the issue of biotic attack of ETICS contact insulation systems. The theoretical part is focused on the individual components of ETICS, both from the point of view of materials and from the point of view of individual steps. In addition, there are organisms that cause biotic attack on facades. The practical part deals with the possibilities of testing the resistance of the surface treatment of ETICS against biotic attack, both in laboratory conditions and in the exterior.
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Influence of plasma activated water on fungal diseases
Moskvina, Anastasia ; Krčma, František (referee) ; Kozáková, Zdenka (advisor)
This bachelor thesis focuses on influence of plasma treated water on fungal diseases. The theoretical part is dedicated to plasma-liquid interactions, properties and application of plasma activated water and its influence on different microorganisms. Plasma activated water contains reactive oxygen species which cause inactivation of living cells, making it a potential sterilizer. The experimental part of this work compares the effectiveness of three plasma treated water preparation techniques. Dielectric barrier discharge system was used to activate water above its surface. For the under the surface activation, a two-electrode system of both alternating and direct current was used. Plasma treated water was then used to prepare a suspended mixture with Aspergillus niger spores. The latter was then cultivated on agar plates for 72 hours. The overall effect was evaluated in amounts of colony forming units. The experimentally obtained data was processed and discussed in the results and discussion section of the thesis. It was found that the underwater surface activation had more significant effect on mold deactivation, which corresponds with the information contained in the theoretical part. Although the effect of dielectric barrier discharge was not as promising, all three methods used led to a decrease of colony forming units in comparison to the non-treated control sample.
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Vliv zkrmování mykotoxinů na histologii tenkého střeva potkanů
Zouharová, Marcela
This thesis is about study of effect mykotoxine on histology small intestine. Experiment was made on 3 groups with rats. This groups were feeding 28 days moldy feed about different concentration. After the end of the experiment were taken sample of duodenum, illeum and jejunum. From the samples taken, the villi height and width were measured in each part of the small intestine. Averages were calculated from the measured values and the results were plotted in graphs. The results show that feeding of mycotoxins leads to stimulation growth intestine villi in rats
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The issue of biotic attack of ETICS
Těžká, Adéla ; Žák,, Antonín (referee) ; Žižková, Nikol (advisor)
This bachelor thesis deals with the issue of biotic attack of ETICS contact insulation systems. The theoretical part is focused on the individual components of ETICS, both from the point of view of materials and from the point of view of individual steps. In addition, there are organisms that cause biotic attack on facades. The practical part deals with the possibilities of testing the resistance of the surface treatment of ETICS against biotic attack, both in laboratory conditions and in the exterior.
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