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Content manager system as a tool for presentation of small and middle and middle firms on the internet
Petr, Jan ; Novotný, Tomáš (referee) ; Dydowicz, Petr (advisor)
The subject of this thesis is comparison of the author’s own publishing sytem with a competing publishing system and its implementation in real conditions of small and middle-sized companies operating on the Internet from the perspective of an IT company. The next part describes the development and practical use of the system. In conclusion, the thesis describes the economic, financial and technological benefits for the copany and the advantages (disadvantages) that arise for the company from using its own publishing system vs. an external one.
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Optimation and Innovation of Heating by Thermal Pumps
Petr, Jan ; Kudela, Libor (referee) ; Lisý, Martin (advisor)
The Bachelor’s Thesis adresses heat pumps, its description, comparison and assessment of heating of the model house. In the first part the research is done. The research describes on what principles the heat pump works and how they differ. In the second part, the model house is described. Heat losses are calculated. For two types of heat pumps are calculated returns on investments.
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Creation of ATO with flight training on BUT
Petr, Jan ; Šplíchal, Miroslav (referee) ; Hammer, Jaromír (advisor)
The subject of this thesis is a study of requirements related to the creation of an approved organization for flight training (ATO), including the design of organizational structure and staffing in the conditions of the Brno University of Technology. The first part of the thesis maps relevant legislative sources and all possible types of training organizations. The next part of the thesis is focused on the selection of the appropriate type of training organization, organizational and personal integration into the structure of BUT, description of the aircraft fleet, selecting the appropriate airport and calculating the expected price of the flight hour Cessna C172S license plate OK-VUT. The conclusion of the thesis deals with the competitiveness of the created training organization and possible possibilities of expanding the provided training.
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Storage of natural gas in hydrates
Petr, Jan ; Brázdil, Marian (referee) ; Pospíšil, Jiří (advisor)
This thesis deals with storage of natural gas in hydrates, forming of hydrate, its transportation and storage. Within the calculation part, three hydrate forming reactors are compared. According to the paramters used in the calculations, a reactor is designed. Basic drawing documentation is also available. The final calculations focus on the nominal evaporation of the storage tank.
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Content manager system as a tool for publication of small and middle firms
Petr, Jan ; Bukovský, Petr (referee) ; Dydowicz, Petr (advisor)
This thesis focuses on the problems of the current content manager systems. The aim of this thesis is to propose and create a content manager system which provides presenting of the products and services of the firm without the deeper knowledge of the functioning of the programming language. Thanks to this system even the users without the knowledge are able to publish at some level and have a high-quality tool which enables them at the same time to achieve in the competition. The content manager system in this thesis will be based on Microsoft Windows with the help of the Visual Studio 2003 on Framework .NET with the usage MS SQL server and IIS.
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Dreamy boy
Petr, Jan ; Moješčík, David (referee) ; Gabriel, Michal (advisor)
In my bachelor's thesis I focus on the processing of a life-size figural sculpture of a boy called The Dreamy Boy. In terms of genre, I move in the field of self-portrait - I portray myself and I am based on memories of my own childhood, when as a little boy I wandered and dreamed in nature. It is a poetic expression of the moment of dreaming or meditation in space. The aim is to create a sculpture in the form of a stylized piece of paper, and thus create a work that poetically represents a nostalgic memory of childhood.
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Influence of the interacting constituent of the background electrolyte on electrophoretic separation
Müllerová, Ludmila ; Dubský, Pavel (advisor) ; Kašička, Václav (referee) ; Petr, Jan (referee)
Capillary electrophoresis is a widely used separation method of analytical chemistry. Addition of a selector into the background electrolyte extends its applicability to separation of enantiomers or of compounds of similar physicochemical properties. In analytical practice, mixtures of selectors are also commonly used - either prepared intentionally to achieve better separation or because commercially available selectors may be mixtures of compounds differing in the degree of substitution and substituent positions. Mathematical description of these systems, which are highly relevant in analytical practice, can simplify search for optimal separation conditions. Also, it provides a useful insight into the separation mechanism. In this work, a model of electromigration of an analyte interacting with a mixture of two selectors is proposed and experimentally verified. This model results from a more general description of systems with an arbitrary number of selectors. The model shows that a selector mixture can be treated as a single selector if the ratio of the respective selector concentrations is kept constant. When the mixture is prepared intentionally, this description predicts, how separation potential of the mixture changes with its composition. Thus it allows the optimal composition and total...
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Characterization of new chiral separation systems for HPLC
Vozka, Jiří ; Tesařová, Eva (advisor) ; Sýkora, David (referee) ; Petr, Jan (referee)
The dissertation thesis is focused on the physico-chemical characterization of interaction mechanisms of chiral stationary phases based on derivatized cyclofructans. Correct interpretation of retention and enantiodiscrimination processes substantially facilitates the development and optimization of new enantioselective methods using cyclofructan-based chiral stationary phases. At first, the interaction mechanisms of three commercially available cyclofructan-based stationary phases were studied in normal-phase mode of liquid chromatography. Namely, systems using chiral stationary phases based on dimethylphenyl carbamate cyclofructan 7, R-naphtylethyl carbamate cyclofructan 6 and isopropyl carbamate cyclofructan 6 were studied. Linear free energy relationship model was used as a basic tool for characterization of interactions on the stationary phases. The mentioned model revealed that the main interactions contributing to retention in cyclofructan-based systems are hydrogen bond acidity and dipolarity/polarizibility, while dispersion interactions cause decrease of retention. The impact of oligosaccharide skeleton of the cyclofructan selector on the enantioselectivity was elucidated by the comparison with seemingly analogous cyclodextrin-based chiral stationary phases. Cyclofructan-based chiral...
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Environmental Literacy of Second Grade's Pupils at Primary School in the Czech Republic, Slovakia, Poland and Germany
Svobodová, Silvie ; Teodoridis, Vasilis (advisor) ; Škoda, Jiří (referee) ; Petr, Jan (referee)
Environmental Literacy of ISCED 2 Pupils in the Czech Republic, Slovakia, Poland and Germany Mgr. Ing. Silvie Svobodová ABSTRACT The concept of environmental literacy is based primarily on the principles of environmental education. It is a measure of environmental knowledge, attitudes, sensitivity and environmentally responsible behavior. It represents a relatively broad multidimensional construct, which can be summarized into three main dimensions (cognitive, affective and conative). This dissertation is focused on the environmental literacy of ISCED 2 pupils in the Czech Republic and selected Central European countries. The main contribution of the work lies in the construction and verification of a sophisticated authorial analytical tool for comprehensive testing of environmental literacy and its application in the Czech Republic, Slovakia, Poland, Austria and Germany. The tool is based on a range of tools established and published abroad, the applicability of which in the Czech environment has been verified, namely the Middle School Environmental Literacy Survey and 2 Major Environmental Values. The research analyzed the relationship between the dimensions of environmental literacy and the identified significant determinants that can fundamentally predict the level of environmental literacy, in the...
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Monotone functions avoiding majorities
Petr, Jan ; Barto, Libor (advisor) ; Mottet, Antoine (referee)
In the past five years, the Promise Constraint Satisfaction Problem (PCSP) has been a popular topic in computational complexity, covering a wide range of computational problems. In this work, we begin by introducing the PCSP and then turn our atten- tion to the still open problem of the PCSP over 'monotone folded Boolean structures'. Brakensiek and Guruswami showed in 2016 that the PCSP is in P if all odd majorities are polymorphisms between structures under consideration. We focus on the situation in which some of the odd majorities are not among the polymorphisms. We present a technique for proving NP-completeness of PCSPs that uses the notion of heavy sets. Our approach succeeds in proving that the absence of the 3-majority makes the PCSP NP-complete. We then give a few partial results for the case of the absence of the 5-majority. We finish by determining the size of the smallest heavy set for a particular family of functions. 1
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