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Choroby a vady vín, jejich prevence a odstranění
Procházková, Kateřina
This thesis deals with the health of the wine. The main theme is the most prevalent diseases and defects of wine. That may have been created since the very beginning in the vineyard and then in the manufacturing process of the wine. Defects are formed by chemical and physical influences and vice versa cause disease microorganisms. Thus damaged wines are characterized by adverse sensory perceptions and become inedible. For any defects or disease describes the general description, causes, prevention, and if there is damage described possible treatment, although in all cases it is not possible.
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Elimination of losses in production in the selected company
KISSOVÁ, Beáta
The aim of bachelor´s work, which is called "Elimination of losses in production in the selected company" was the analysis of the production process and a detection of possible production losses in the company Cormen Ltd which is located in town Bystřice nad Pernštejnem. The work describes the production process with all its steps, production flow and the production background in the company. Observing the action in the company I searched for the possible sources of production losses. No significant losses were found as the company avoids the typical errors related to the production planning. Nevertheless I was able to identify certain potential sources of the production losses and suggested their elimination.
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Methods of reduction of excessive biomass of phytoplankton
CHADTOVÁ, Gabriela
The aim of this study was to prepare review of methods to combat over development of phytoplankton. The work also includes a critical evaluation of usability, efficacy and risks of these methods. The methods to combat over-development of phytoplankton can be divided into direct and indirect. While the direct methods acts directly against phytoplankton, indirect methods are based mostly on reducing the amount of nutrients available for phytoplankton growth. Both of these methods can be further divided to biological, physico-mechanical and chemical. The direct methods of physico-mechanical include ultrasound, flushing and dilution, direct chemical methods include the use of chemical algaecides, coagulants and flocculants. Direct biological methods are especially divided by the principle of parasites(viruses,bacteria and fungi), competitors (algae), allelopathy (extracts from higher plants),predation (protozoa and herbivorous fish). The indirect physico-mechanical methods include extraction and overlapping sediment. Chemical methods are meant by the binding of nutrients to insoluble compound in the sediment and the biological methods are meant use of communities of bacteria for mineralization of sediments. The next part of the work is devoted to the characteristics of algae and cyanobacteria, as well as factors affecting the formation and development of algal blooms. In this part of the work I focus mainly on cyanobacteria, their toxins and the effect they have on the individual components of aquatic ecosystems.
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