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Evaluation of industrial heritage
Navrátil, Oldřich ; Králová, Eva (referee) ; Zemánek, Václav (referee) ; Ryšková, Michaela (referee) ; Zemánková, Helena (advisor)
The main subject is evaluation of effective use in terms of care (not only within protection of monuments) in order to save and protect industrial heritage. Pointing out on critical issues connected with the end of production of traditional branches which played the key role in historical development of our cities. Nowadays abandoned buildings and sites are represented by memory of the place or its prosperity. New owners often don't share the positive approach to the industrial heritage, developers are seeking new sites, cities and inhabitants have developed new needs through the time. The work will demonstrate examples within European context and will make recommendations in monitoring and classification of industrial heritage to prevent undo able losses.
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Plasma cleaning of corroded plumb objects
Bubnová, Kateřina ; Grossmannová, Hana (referee) ; Krčma, František (advisor)
This bachelor thesis deals with the application of low-pressure hydrogen plasma to lead corrosion products. There are many historical objects and these objects require careful removal of corrosion layers. Therefore, it is necessary to optimize the treatment process in order not to destroy real historical artefacts in the future. This work is focused on lead, which has not been explored by this method yet. Model samples with corrosion were prepared for comparison and these samples corrode in vapors of concentrated acetic acid and formic acid. There were three working temperatures for plasma chemical treatment because of the low lead melting point and the atomic heating. Argon-hydrogen plasma and hydrogen plasma was applied to 12 corroded samples during the experiment. Process progress was monitored by optical emission spectrometry and surface analysis was performed by SEM, XRD and EDX analysis. The results of these analyzes showed that the most appropriate temperature for plasma chemical treatment was 130 ° C. Based on the obtained results many suggesstions and ideas were obtained for the future research like using of pulse mode and gas composition.
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Antimicrobial activity of selected natural extracts
Šandová, Lucie ; Veselá, Mária (referee) ; Zemanová, Jana (advisor)
The aim of the bachelor thesis was to determine antimicrobial activity of selected natural extracts, specifically three model extracts made from purple coneflower (Echinacea purpurea) and four commercial extracts – true lavender (Lavandula angustifolia), lemon balm (Melissa oficinalis), echinacea herbal drops (Echinacea purpurea) and echinacea extract (Echinacea purpurea) with ginger, against selected microorganisms. Theoretical part is focused on description of bioactive substances that are found in plants. It also describes extraction methods used for obtaining extracts from plant materials, methods for determining antimicrobial activity and then the use of natural extracts in food and cosmetic industry. In experimental part, antimicrobial effect of the extracts was tested against gram-negative bacteria Escherichia coli, gram-positive bacteria Bacillus cereus and yeast Candida glabrata. For determination of the antimicrobial activity, two methods (hole method and disc diffusion method) were used and compared. The highest antimicrobial activity against selected microorganisms was showed by commercial extract of lemon balm, which contains lot of geraniol and citroneloll. Significant antimicrobial activity had also been shown by commercial extract of true lavender. On the contrary, extracts from Echinacea had not shown any antimicrobial activity against selected microorganisms.
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Způsoby marinování a nakládání ryb
Fichtnerová, Lenka
The bachelor thesis on the topic "Methods of marinating and pickling fish" deals with the characteristics of individual freshwater and marine fish species, which are the most used in the food industry, their nutritional value, and nutritional properties. The introductory part focuses on the description of specific fish species, the different components of fish meat and their impact on human health. Furthermore, special hygienic rules for handling fishery products were described, which are determined by both Czech legislation and European Union regulations. Subsequently, the various methods of fish processing that ensure the extension of the shelf life of fish meat are explained in detail. This is followed by a description of the various methods, including marinating, pickling, and preserving. Finally, the sub-processes are evaluated in terms of the processing requirements, the raw materials used and the shelf life of the products.
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The comparison of production technology and conservation of bulky fodder in selected farm and recommendation for improvement
NOVÁKOVÁ, Vladimíra
The first part of this thesis deals with the history and description of roughages. Here, harvesting methods, processing principles and procedures and storage options are described. Also in this first part, the conservation of hay and haylage material is described. For haylage and hay, both sensory properties and laboratory evaluation according to the 'Standard 2004' (No 244/2000 Coll.), which is the most commonly used in the Czech Republic, are given. The most commonly used and commonly occurring clover and grasses are also characterised. Hay additives or preparations are divided into groups and microorganisms for preservation that are harmful or beneficial for biomass fermentation are included. This section concludes with a discussion of maize and the impact of roughages on livestock production. The second part of the thesis deals with the actual monitoring of the quality of roughages, mainly hay pit, hay bale, hay fence and hay bale. Mostly this part focuses on sensory monitoring of the properties of these feeds and laboratory analysis. It concludes with various recommendations that could improve the quality and economics of roughages.
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Stanovení in vitro stravitelnosti organické hmoty kukuřičné siláže pepsin-celulázovou metodou
FOUS, Dominik
Silage, and especially maize silage, is the most abundant roughage both in the Czech Republic and in Europe. Silage compensates for a large part of the energy needed for the proper performance of animals. Stable efficiency and its increase can be ensured only by a constant and balanced composition of the feed ration throughout the year. Due to the importance of preparing quality feed, additives are often used. It is possible to add homofermentative bacteria to the ensiled mass with silage additives to rapidly lower the pH of the silage, or to add heterofermentative bacteria which improve aerobic stability in the silage, it is also possible to combine these bacteria or use other silage additives.
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Účinnost vybraných postupů konzervace ryb na zachování morfometrických ukazatelů
VOGALOVÁ, Pavlína
This bachelor's thesis is focused on the topic of fish fixation and preservation. Experiments regarding various preservation methods are covered in many scientific ichthyological texts. Unfortunately, most of these works are exploring only one preservation method, so mostly there isn't the possibility of comparison with different methods using the same species. Aim of this work is introduction to preservation and fixation methods, that affect morphometric parameters of fish. Theoretical part of this thesis are procedures of fixation and preservation. The experiment itself is focusing on effect of preservation over time. Selected morphometric parameters were observed and measured in selected fish species to discover potential changes in these parameters. Measurements were being taken every two weeks for few months.
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Historic Interiors and the Speech of Materials
Cichrová, Kateřina ; Lukášová, Eva ; Ourodová-Hronková, Ludmila ; Tejml, Ladislav ; Troupová, Ivana ; Raichlová, Michaela ; Caran, René ; Němec, Luděk ; Čekalová, Antony Sylva ; Bukovjanová, Radka ; Pešek, Vít ; Soukup, Libor
The methodology is a continuation of the work of the team of authors titled Metodika tvorby interiérových instalací a reinstalací (Methodology for Interior Installation and Reinstallation Design), published by the National Heritage Institute in 2011 (ISBN 978-80-87104-86-6). Individual chapters deal in more detail with several phenomena that, in addition to their undeniable and sometimes essential aesthetic role, had a primarily practical purpose in historical interiors. Historic floors, heating elements or upholstery have their irreplaceable place in interiors and they objectively testify to important details of the contemporary lifestyle. With the language of the material they testify to the taste and practical needs of their owners and they are a tangible testimony not only to the technical skills but also to the level of aesthetic sensitivity of their creators. In individual chapters, the publication deals in detail with these phenomena and the impact of their quality on the integrity of the historic interior and its narrative value. One part also describes how to use modern 3D technologies to reconstruct the no longer existing phases of the historic interiors. As an example, the publication presents the reconstruction of two interiors from the Manětín and Veltrusy Castles. The publication mainly provides practical information and instructions on how to apply and implement the maximum respect for the authenticity of the monitored elements (floor covering, historic heaters, all upholstered elements) within the framework of the rehabilitation of historic interiors. The informations are given on the basis of practical examples of possible solutions and supplemented by a large number of illustrative illustrations.
Fulltext:  PDF; PDF
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