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Conception of a conical splitter for wood
Stejskal, Jan ; Pokorný, Přemysl (referee) ; Hloušek, David (advisor)
This bachelor thesis consists of an introductory research part and a structural draft of a conical wood splitter with typed technical parameters and maximal log length and width. The thesis contains computing and strength examination of chosen components and final evaluation of designed construction from the law standards viewpoint.
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Marketing communication of Surf Camp
Stejskal, Jan ; Pecinová, Markéta (advisor) ; Voráček, Josef (referee)
Title: Marketing communication of Surf Camp Objectives: The purpose of this bachelor thesis is to create a proposal to improve the marketing communication of Surf Camp for the 2019 season. The evaluation of current marketing communication was achieved through both the standpoint of its customers as well as its management. Methods: Both qualitative and quantitative methods were used to evaluate the company's existing marketing communication. The main research methods used were questionnaire surveys, an in-depth semi-structured interview with the company's owner, internal data analysis and personal observation. Results: The result of this bachelor thesis is a proposal for improving marketing communication for the 2019 season. This proposal will be submitted to Surf Camp management. Key words: Promotion, advertising, online, social networks, WOM, public relations, event marketing.
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Preparation and characterization of tetraalkylammonium selenates and selenites
Stejskal, Jan
In my work on the preparation and study of new materials suitable for proton conductivity, there were prepared and characterized two novel semi-organic salts of tetra-n- propylammonium (1+) and tetra-n-butylammonium (1+) hydrogen selenate have been prepared and characterised. Tetra-n-propylammonium (1+) hydrogen selenate (a=15.7949(6) Å, b=15.3876(6) Å, c=40.4384(17) Å, V=9828.4(7) Å3 , Z=8 for 8775 observed reflections) and tetra-n-butylammonium (1+) hydrogen selenate (a=15.0870(3) Å, b=15.3380(4) Å, c=17.4750(4) Å, V=4043.79(16) Å3 , Z=8, R=0.0432 for 3335 observed reflections) crystallise in the centrosymmetric space groups Pbcn and Pccn of the orthorhombic system, respectively. Both salts were also characterised by the methods of vibrational spectroscopy (IR and Raman). The interpretation of the vibrational spectra is based on ab initio calculations of the isolated cations. The crystal structure of the third analogous compound, tetra-n-ethylammonium(1+) hydrogen selenate was redetermined at 150 K (a=8.2109(17) Å, b=9.072(2) Å, c=9.431(3) Å, α=77.13(3)ž, β=74.43(2)ž, γ=63.62(3)ž, V=601.89(3) Å3 , Z=2, R=0.0167 for 2237 observed reflections). This compound crystallises in centrosymmetric space group P-1 of the triclinic system and was previously studied only at room temperature. Key word:...
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Management of production populations of forest tree species utilizing methods of mathematical programing
Hořejší, Matouš ; Lstibůrek, Milan (advisor) ; Stejskal, Jan (referee)
Breeding of forest tree species is a great opportunity for the entire forestry sector to succeed in the present modern World. Genetically improved forest trees have much better growing quality and they can sustain higher stress and unfavorable climatic conditions.
Efficient algorithms are necessary for optimizing and establishing seed orchards. These should optimally select clones as parents in future seed orchards. In the present thesis, we developed model, based on mathematical programming methods, which creates mix of clones with the maximum breeding value and constraints on genetic diversity.
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The flow of magnetic liquid with Bingham model application
Stejskal, Jan ; Krausová, Hana (referee) ; Haluza, Miloslav (advisor)
Main topic of this thesis are magnetic fluids. These are specific type of fluids which can simplistically be considered as Bingham fluids. Main issues regarding the magnetic fluids mentioned in this thesis are: rheological properties of the magnetic fluids, behaviour of the magnetic fluids and the use of the magnetic fluids in industrial applications. Main goal is to apply Binghams model on the the magnetic fluids assuming that this model can be applied with a good accuracy. Equations which describe behaviour of the Bingham fluids are constructed. Some assumptions which have to be respected to use this analytical equations for magnetic fluids are formulated. Flow of bingham fluid is analytically solved in some simplificated cases with consideration of laminar flow. Analytical results are confronted with numerical ones obtained from CFD software Fluent for the purpose of verification.
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Test of Vibration Power Generator with Longitudinal Coil
Stejskal, Jan ; Březina, Lukáš (referee) ; Hadaš, Zdeněk (advisor)
This thesis deals with activation and testing of Vibration Power Generator with Longitudinal Coil which was designed at Brno University of Technology. One of goals of the thesis is to compile simulating model of this device and to compare its results with data gained from measuring device used while testing on the vibration stand. This Vibration Power Generator could be theoretically used in aerospace industry as well as in other branches of industry. It´s important to minimalize its dimensions and weight as much as possible. On the other hand, there are some parameters which should stay unchanged with respect to troublefree work of the device. According to those facts, some changes of construction were proposed within this thesis.
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The use of NoSQL databases in the environment of financial institutions
Stejskal, Jan ; Chlapek, Dušan (advisor) ; Bruckner, Tomáš (referee)
This work deals with the use of NoSQL database systems in an environment of financial institutions. The work has several objectives: to characterize the types of NoSQL database systems, for selected systems to analyze their properties, their potential use in financial institutions to develop proposals case studies for their use, and one of them select and implement a demonstration of the possibilities of using this type of database system in the specific environment of financial institutions. These objectives are to be achieved by providing a description and analysis of the theoretical part, practical part in designing, choosing, implementation, verification and acceptance of one case study - based on acceptances criteria. In the thesis are the basic concepts of database systems explained first. It is explained in more detail the concept of NoSQL and related terms including causes and genesis, classification systems NoSQL in each category. The next part contains a comparison of the characteristics of relational database - relational systems and NoSQL database systems. The next chapter deals with the needs of financial institutions in the context of the use of database systems. There are also analyzed the properties of several selected NoSQL database systems . The next chapter is based on the analytical findings from previous chapters devoted to finding poten-tials lu use NoSQL database systems in an environment of financial institutions, which is the basic theme of the thesis . The penultimate chapter contains a suggestions of case studies, one of which is selected and a description of the results of its implementation are described in the last chapter . The main contribution of this work is a contribution to the theory of NoSQL systems and the possibili-ty of their use by financial institutions, which take into account when choosing a database system, or a combination of database systems, in practical terms can lead not only to increase the efficiency of their use, but also to optimize the acquisition and operational the costs of such systems.
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Analysis of the requirements for the implementation of ECM software in the Czech Television
Stejskal, Jan ; Vencovský, Filip (advisor) ; Šperková, Lucie (referee)
The thesis surveys the current situation of the photograph administration in the Czech Television (ČT). In the short term is the ČT going to enquire ECM system, which is supposed to ease working with the photos across the departments. The aim of the thesis is getting the documents for successful launching of such a system. The first part of the thesis describes the current situation. The next shapes the processes, which are in progress in the ČT and analyses them. By the means of dialogues with the employees of the ČT are obtained information needed for definition of required functionality of the system. The third part summarizes the requirements for the system and defines its core functionalities. The output should be obtaining enough information for the provider company, which would either suggest the software solution, or come up with ready-made software with the suggestions of customisations. The main contribution of the thesis is based on the summarization and analysis of the requirements across the departments in the ČT, which should lead to implementation of a complex solution and meeting the requirements set by the employees by this system.
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Influence of water regime on growth and quality of selected grass species
STEJSKAL, Jan
This thesis deals with permanent grassland, their meaning and use. The thesis is focused on the influence of water regime on selected grass species Kentucky bluegrass (Poa pratense) and Creeping thin (Agrostits tenuis), its resistance to drought, water stress and the impact of growth and production in the absence of water. The work was carried out under laboratory conditions and areas where attempts have been made regarding the germination of grasses in the absence of water. A sub-task was to evaluate dry matter yield for grass species.
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