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The family house with veterinary attendance
Kotek, Miroslav ; Slávik, Richard (referee) ; Benešová, Romana (advisor)
Bachelor´s thesis deals with a new family house with veterinary attendance in the village Pstruží. The aim of this work is to develop design documents for building construction. It is detached building with two floors and basement. Spaces for veterinary medicine are located in the basement. Two floors are intended for occupancy 4-5 persons.
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Conflicts within the working groups and teams
Kotek, Martin ; Michalík, David (advisor) ; Rymeš, Milan (referee)
The author aims at the topic of working groups and teams. He focused concretely on the conflicts that can arise within them. The first part of paper is devoted to the explanation of basic concepts, on which is based this work. The author introduce step by step with the issue of conflicts and their basic typology, defining the working group compared to the team and the role of both in human life, as well as communication and interpersonal interactions as integral parts of two previous concepts. In the core of the work are mentioned the basic causes of conflict in the labour collectives in the form of group composition, relationships, and interactions, methods of management or leadership, and also personal settings. At the conclusion of this crucial part of paper are discussed and presented modern phenomena of bullying in the workplace called mobbing and bossing. The last part of theory is devoted to the consequences and implications that these conflicts can cause not only for humans but for the whole group, hence the organization. The whole work is finished by a list of possible methods to investigate this issue and also the specific research proposals.
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The suicide - Masaryk's lifelong problem
Kotek, Martin ; Petrusek, Miloslav (advisor) ; Paulíček, Miroslav (referee)
The work is focused on the theme of suicide in the presentation of T. G. Masaryk. Author's aim is to chart the Masaryk's life in such a way as to affect how the topic of suicide goes through the Masaryk's life and how is reflected in his work and opinions on the modern society. Is also pointed out, how this theme, in the background of Masaryk's philosophy, sociology and theology, mingles into all of these areas and connects them. The first part is devoted to young childhood of Masaryk and to his experience at the beginning of his academic career. It is outlined, how Masaryk got to know the theme of suicide and how he took it as his own. Another section is devoted to his personality and personal views on the world. Substantial part of the work is then focused on the interpretation of the religion and the modern developments of society in the administration of Masaryk and his theory of suicide. Following this, the author deals not only with this work demonstrative moral decay of society, but also with other Masaryk's works, in which is the problem of suicide reflected. The last part is devoted to criticism of Masaryk's concept from the mouth of past and contemporary authors and then the comments to the validity of Masaryk theory for today's society. So, beside the presentation, how was the whole...
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Rare Disasters and Asset Pricing Puzzles
Kotek, Martin ; Maršál, Aleš (advisor) ; Korbel, Václav (referee)
The impact of rare disasters on equity premium and term premium in a New Keynesian DSGE model is explored in the thesis. Andreasen's (2012) model with Epstein-Zin preferences, bonds and a rare disaster shock in total factor productivity process is extended by a variable capital stock and an equity-type asset. We find that the variable capital significantly changes behavior of the model, capital depreciation must be substantially increased to counter the effect of variable capital and stochastic mean of inflation increases. The model calibrated to the US economy and a high risk aversion generates 10-year term premium of 90 basis points, rare disasters increase the premium only by 3 basis points. The equity premium is 163 basis points and rare disasters increase it also only by 3 basis points. The model with a low coefficient of relative risk aversion of 5.5 generates negative risk premia. Rare disasters increase the risk premia by mere 4 basis points in comparison to a model with i.i.d. shocks. Powered by TCPDF (www.tcpdf.org)
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Local velocity scaling in upward flow to tooth impeller in a fully turbulent region
Šulc, R. ; Ditl, P. ; Fořt, I. ; Jašíková, D. ; Kotek, M. ; Kopecký, V. ; Kysela, Bohuš
The hydrodynamics and flow field were measured in an agitated vessel using 2-D Time Resolved Particle Image Velocimetry (2-D TR PIV). The experiments were carried out in a fully baffled cylindrical flat bottom vessel 400 mm in inner diameter agitated by a tooth impeller 133 mm in diameter. Distilled water was used as the agitated liquid. The velocity fields were investigated in the upward flow to the impeller for three impeller rotation speeds – 300 rpm, 500 rpm and 700 rpm, corresponding to a Reynolds number in the range 94 000 < Re < 221 000. This means that fully-developed turbulent flow was reached. This Re range secures the fully-developed turbulent flow in an agitated liquid. In accordance with the theory of mixing, the dimensionless mean and fluctuation velocities in the measured directions were found to be constant and independent of the impeller Reynolds number. On the basis of the test results the spatial distributions of dimensionless velocities were calculated. The axial turbulence intensity was found to be in the majority in the range from 0.4 to 0.7, which corresponds to the middle level of turbulence intensity.
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Droplets breakage in flow conditions of an agitated tank
Kysela, Bohuš ; Konfršt, Jiří ; Chára, Zdeněk ; Šulc, R. ; Kotek, M.
Production of two immiscible liquid dispersions used in chemical or metallurgical industry is usually performed by a mixing process. The droplets of secondary liquid are predominantly dispersed by the shear flow forces to the primary liquid. It is well known, that the real droplet size distribution is limited by the physical properties of both liquids, the acting forces and residence time. This phenomenon is investigated experimentally or numerically simulated by several methods. In this study, the simplified mixing test case was studied. The single droplet dispergation was simulated using finite volume method and multiphase VOF (Volume-of-Fluid) model. The capability of the local remeshing method was investigated. The increase of calculation performance and the phases mass imbalance during automatic mesh refinement is summarized.
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Measurement of drop size distribution time rate for liquid-liquid dispersion using IPI method
Jašíková, D. ; Kotek, M. ; Kysela, Bohuš ; Šulc, R. ; Kopecký, V.
The liquid-liquid dispersion properties are studied mainly by image analysis (IA) and Interferometric Particle Imaging (IPI). Drop sizes will be investigated in dilute dispersion since in this case the break up phenomena is the dominating and is not affected by phase fraction. Characteristics of the size distribution and the evolution of two liquid-liquid phase’s disintegration were studied. The IPI method was used for subsequent detailed study of the disintegrated droplets. We compared two liquids: Rhodosil Oil 47V50, and Silicone Oil AP1000 under stirrer rate of 540 rpm, and 760 rpm. The experiment run in the scaled model of agitated tank with Rushton turbine.
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