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The influence of eccentricity upon the radial forces in an induction motor
Formánek, Jakub ; Hájek, Vítězslav (referee) ; Janda, Marcel (advisor)
The aim of this master thesis is to get familiar with the influence of radial forces in the induction machine. Induction motor is one of the most commonly used and most extended type of machine, therefore it is useful to detect the intensity of theese forces and their influence at operation of the machine. In this work ,radial forces are computed by the software simulation in ANSYS Maxwell. Models are created with help of module Rmxprt and finite elements method.These models are based on real induction motors with predefined size of eccentricity. In the final part we perform a measurement of deviations on the real machine using vibrometer.
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Building a predictive model for bankruptcy
BÜRGER, Pavel
Thesis deals with complex process of creation of new bankruptcy model for predicting business failure, while this process involves selection of quality sample, verification of classification accuracy of already existing bankruptcy models, profile analysis and finally the derivation of specific equation of bankruptcy model. The derivation is performed by using two selected statistical methods, discriminant analysis and logistic regression. Two bankruptcy models Bürger's index DA12 and Bürger's index LR12 were derived by using the mentioned statistical methods. The new models distinct advantage is, unlike already existing and renowned bankruptcy models, that they are focused on classification of micro and small enterprises in terms of Czech Republic, while classification accuracy one year before failure is by individual models 74.8 % and 81.87 %. Derived models have clear interpretation (no grey zone) and easy calculation, which brings a possibility for micro and small entrepreneurs to check their business partners in terms of failure prediction.
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Evaluation and motivation in public administration
Vašíčková, Natálie ; Mitwallyová, Helena (advisor) ; Vláčil, Jan (referee)
The theme of the bachelor thesis is the evaluation and motivation of employees in public administration. The introductory part outlines the evaluation and motivation of employees on a general level, and then describes the specifics applicable for public administration. The practical part is focused on the evaluation and motivation systems used at selected institutions of public administration. It aims to assess these systems, suggest possible recommendations and find out whether the systems in use include modern management methods, such as evaluation interviews, competency models and regular system of employee evaluation as such. The research method consisted of interviews with human resources managers at selected institutions of public administration. Complementary information was obtained from materials created by these institutions themselves. All institutions of public administration are governed by Act No. 234/2014 Coll. on Civil Service, enshrining the evaluation of state employees. However, it depends on whether employees are evaluated formally, or if additional evaluation tools beyond the framework of the law are deployed, e.g. competency models. Officials of territorial authorities are subject to Act No. 312/2002 Coll., which does not explicitly define employee evaluation, yet employees are evaluated at many regional as well as local administration units. The results of the research survey confirmed that modern management methods are used in public administration and that the evaluation systems do not have any significant shortcomings.
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Oligopolistic Competition among Telephones Operators (including International Comparison)
Procházková, Barbora ; Šrédl, Karel (advisor) ; Hana, Hana (referee)
The subject of this thesis is the analysis of oligopolistic competition in the market of mobile telecommunications services in the Czech Republic in comparison with the neighboring country Germany. This thesis describes the behavior of companies in the telecommunications market in the Czech Republic and Germany and all members associated with them.
The theoretical part of the thesis describes and analyzes in detail the oligopoly models. Its structures are precisely defined and the differences between the various models explained. And also, this part focuses on the competence and activities of the Czech Telecommunications Office and the Office for the Protection of Competition. It shows the important changes that have occurred in recent years in the context of these organs came, showing in which direction the market is evolving and identifies tools to help authorities intervene in the competitive environment of the market.
In the analytical part there are characterized a specific telephone operators on the territory of the Republic with the focus on their rivalry with the problems of competitors in Germany, in order to predict the development in the near future. As a special area defined virtual operators and their specific market environment is defined relative to its specificity.
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Artificial neural networks and their application in the assessment of insurance risks
Macek, Karel ; Jiroutek, Pavel (referee) ; Mrázová, Iveta (advisor)
The present work studies applicability of artificial neural networks in the assessment of insurance risk. Structure and function of multilayer perceptrons, Kohonen maps, Fuzzy ART networks, and Fuzzy ARTMAP networks are described. Concept of insurance risk is defined and the ratemaking by generalized linear models is introduced. Neural networks' methods for reduction of input space's dimension, knowledge extraction, and visualization are summed up. Data describing traffic accidents are acquainted and results achieved on them are presented. The work successfully demonstrates theoretically and experimentally that multilayer perceptrons approximate better than generalized linear models. Modification of multilayer perceptron estimated distribution function of total claim. Analysis performed by Kohonen map and by subsequent visualization detected two significant clusters. Analysis by Fuzzy ART network is presented as a part of new algorithm for reduction of input space's dimension. New algorithm inspired by Fuzzy ARTMAP network discovered a group of accidents where the claim is above average. This group is delimited by interpretable rules. Attached CD contains scripts for Matlab and MySQL that was used for mentioned analyses.
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Care for the oral cavity in a hospitalized patient
CINCIALOVÁ, Kateřina
The term oral hygiene includes a set of measures to prevent the origination of parodont and hard tissues and their progression. These ailments belong to the most common and frequent ones despite the fact they may be prevented by appropriate care and by the proper choice of oral hygiene aids. The most frequent problems are dental decay, dental plaque, gum disease. For each of us, good oral hygiene practicing daily is essential for preventing troubles mentioned above. During hospitalization patients often alter their habits and modes because of the disease and the stay out of home. In patients who are not self-administering and patients with limited capabilities it is the nurse who is in charge of providing the oral hygiene. Each nurse´s priority should be to meet all the patient´s needs and the proper oral hygiene is one the basic ones. I set four aims in my thesis. The first was to find out patients´view of the oral hygiene level at hospitalization. The second aim was to describe the standards of oral hygiene the particular ward offers the patients. The third aim was to compare opinions of self-administering and non self-administering patients. The fourth aim was to compare the role of a nurse in providing oral hygiene for self-administering and non self-administerin patients. The results of my research confirm the first hypothesis {--} hospitalization brings about changes in oral hygiene. Also the second hypothesis proved to be right {--} during hospitalization oral hygiene worsens in patients because they do not have enough possibilities to carry out all the procedures they are used to. The third hypothesis was confirmed, too. Nurses are familiar with oral hygiene aids and know how to use them. The fourth hypothesis that nurses do not ask patients to tell them what their oral hygiene habits are was true. I conducted the research by the questionnaire method and the method of a stuctured interview. The research samples were nurses and patients in following units - neurological, internal, surgical and orthopaedic - in the České Budějovice hospital, Inc. and in the Tábor hospital. Inc. The results of this research could be used as a feedback for hospital management to help improve patients´oral hygiene. It is necessary to take some measures in this respect. Nurses should be more active in getting information about patients´ oral hygiene aids and their hygienic habits. They should ensure the highest patients´comfort possible. Then their efforts will be rewarding.
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GARCH models and R
Jánoš, Andrej ; Bašta, Milan (advisor) ; Hejdová, Martina (referee)
The work is devoted to the concept of volatility and the basic models of volatility ARCH and GARCH. Firstly, volatility, properties of volatility, general structure of the models and historical volatility is described. Then the ARCH and GARCH volatility models are introduced and their properties, estimation methods and the possibility of implementation of these models in modeling and forecasting volatility are discussed. A substantial part of this work is a detailed application of the described models to some particular time series (both simulated and real) using the R program. We analyze the real data capturing the evolution of Prague stock index PX. The key aspect of the work is to provide enough theoretical knowledge and practical skills for a reader to fully understand the mentioned models and to be able to apply them in practise.
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A judgment of the predicability efficiency of the prediction models on the basis of financial statements of the Altreva Ltd. and Jitex Inc. corporations
Kulda, Jakub ; Strnad, Lucien (advisor) ; Kotáb, Jiří (referee)
The thesis deals with the predicability efficiency of prediction models, which represents integral part of financial analysis. These models could be divided into bankruptcy prediction and solvency models. The aim of the listed models is to determine level of financial health of selected companies with a few year prospects. As a representative of the companies, which went bankrupt, was selected Jitex Inc., which fold in 2009 and going concerns represents Altreva Ltd. In the theoretical part various financial ratios and prediction models are described with their expected characteristics. These descriptions also include explenation of models construction. The practical part provides concrete results of used prediction models and financial ratios of Altreva and Jitex. A special attention is paid to Jitex Inc. in 2006, where the prediction models could be misjudged by high level of artificially overvalued profit. The practical aim of this study is an extensive specification of tests along with their suitability to predict fitness of companies within the Czech economy framework.
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