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Interesting properties of microbubbles
Tesař, Václav
Paper investigates properties of very small, sub-millimetre sized gas bubbles in liquids,which are generated by oscillation produced by a fluiidic no-moving-part oscillato in the gas supply into the aerator. Of particular interest is the tendency of microbubbles to coalesce already while in immediate neighbourhood of the aerator exit. Another investigated property is oscillation driven by released surface energy. Autorr derived an equation describing the natural frequencty of the oscillation and with the help of this equation found interesting parameters of the processes, such as the amount of outside water that takes part in the oscillation and has a decisive role in the inertial properties of the variations of the microbubble shape.
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The influence of implementation of DMS in a bank on its business processes
Vejmělek, Vojtěch ; Stanovská, Iva (advisor) ; Cícha, Daniel (referee)
The topic of this thesis is an analysis of the influence of implementation of Document management system (DMS) on a selected process of a specific retail bank. The paper moves from a detailed characteristic of key terms, apart from technological aspects deals with the current legislature, continues on to the current state of the selected process and ends with a proposal of a new process. The thesis is meant for those who are interested in the field of enterprise content management, additionally it can offer motives for thoughts about electronization of documents and how it can be used to better the organization's services.
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Consumer Credit in the Czech Republic from the Client’s Perspective
Huleš, Matěj ; Hejda, Jan (advisor) ; Kaczor, Pavel (referee)
The aim of the thesis titled Consumer Credit in the Czech Republic from the Client´s Perspective is the analysis of the offer of consumer credit loans in the Czech market and an explanation of the basic problems of consumer credit. The first part explains basic information and theoretical concepts related to the issue. In the second part of the thesis, these concepts are put into practice and two model examples are used to explain the procedure for selecting a credit product that will meet the consumer´s needs. The section deals with the comparison of these products. Credit loans are subjected to the comparison in terms of total costs and sub-parameters of the loans, which affect the costs. Following the results of the comparison, the conclusion contains practical recommendations for consumers. The thesis results in a comprehensive educational text that will help anyone interested in consumer financial products to make their choice.
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Development of interest rates in the mortgage market in the Czech Republic between 2006-2016
Ditrichová, Gabriela ; Strejček, Ivo (advisor) ; Klement, Josef (referee)
This bachelor's thesis is focused on the development of interest rates in the mortgage market in the Czech Republic in the decade between 2006 and 2016. A strong economic growth between 2006 and 2007, which had positive effects in the mortgage loan market, was followed by a deep slump in the form of global financial crisis unleashed by speculations in the real estate market in the U.S. The main aim of the work is based on the development of mortgage interest rates and the significant factors that affect their amount - to verify or disprove the hypothesis that interest rates respond to changes of these factors. The results confirm the hypothesis only in certain areas. The influence of changes of interest rates has been proven in the case of inflation and discount rates by usage of the econometric model. Factors that have not shown a significant direct influence of interest rates may have an indirect influence on their change.
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Economic cooperation between China and Sub-Saharan Africa
Šára, Ondřej ; Jiránková, Martina (advisor) ; Sejkora, Jiří (referee)
Building relations with China is a topic of broad and current interest, when it comes to establishing and deepening new economic cooperation between Sub-Saharan Africa and other regions. This thesis analyses current economic cooperation between these two regions with the prevailing emphasis on the African partner. The thesis is formally divided into five chapters. The first two chapters focus on selected theoretical and factual starting points related to the main topic of the thesis, which create a foundation stone for the other chapters. In the third chapter of the thesis, selected statistical data about current trade and investment cooperation between both partners are introduced. The main goal of the following fourth chapter is to analyze real impact of mutual cooperation on the selected country of Sub-Saharan region. The last chapter of the thesis analyses a relatively problematic and widely discussed issue: the classification and allocation of financial flows from China in the Sub-Saharan Africa.
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Graphology and its possibilities of using in the sphere of personnel management
Jandová, Jana ; Šnýdrová, Ivana (advisor) ; Beneš, Milan (referee)
This thesis deals with graphology and its possible use in personnel management. Its aim is to handle this projective method from both theoretical and practical points of view - both to define graphology and explain related terms, and to consider the possible practical contribution of this method to HR. In this thesis, the tasks of a graphologist are introduced, as well as the nature and way of his or her work with handwriting. Global impression signs, measuring signs and description signs are also mentioned as means of interpretation and graphological analysis. Attention is also paid to the formation of individual handwriting, which is greatly influenced by school handwriting models. In this connection, the thesis also handles the newly coined Comenia Script handwriting model. Another topic of interest are graphological expert opinions being closely connected with ethical principles of graphology. The final part is devoted to the practical use of graphology as a method of recruiting workers in personnel management. This thesis is to provide a basic overview of graphology and principles of work with handwriting. Some knowledge in this field can be of use for personnel managers, recruitment consultants, educational consultants, psychologists, andragogists or all those interested in this discipline....
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Use of Interest Rate Models for Interest Rate Risk Management in the Czech Financial Market Environment
Cíchová Králová, Dana ; Arlt, Josef (advisor) ; Cipra, Tomáš (referee) ; Witzany, Jiří (referee)
The main goal of this thesis is to suggest an appropriate approach to interest rate risk modeling in the Czech financial market environment in various situations. Three distinct periods are analyzed. These periods, which are the period before the global financial crisis, period during the financial crisis and in the aftermath of the global financial crisis and calming subsequent debt crisis in the eurozone, are characterized by different evaluation of liquidity and credit risk, different relationship between financial variables and market participants and different degree of market regulations. Within this goal, an application of the BGM model in the Czech financial market environment is crucial. Use of the BGM model for the purpose of predicting a dynamics of a yield curve is not very common. This is firstly due to the fact that primary use of this model is a valuation of interest rate derivatives while ensuring the absence of arbitrage and secondly its application is relatively difficult. Nevertheless, I apply the BGM model to obtain predictions of the probability distributions of interest rates in the Czech and eurozone market environment, because its complexity, direct modeling of a yield curve based on market rates and especially a possibility of parameter estimation based on current swaptions volatilities quotations may lead to a significant improvement of predictions. This improvement was also confirmed in this thesis. Use of swaptions volatilities market quotations is especially useful in the period of unprecedented mone- tary easing and increased number of central banks and other regulators interventions into financial markets that occur after the financial crisis, because it reflects current market expectations which also include future interventions. As a consequence of underdevelopment of the Czech financial market there are no market quotations of Czech koruna denominated swaptions volatilities. I suggest their approximations based on quotations of euro denominated swaptions volatilities and also using volatilities of koruna and euro forward rates. Use of this approach ensures that predictions of the Czech yield curve dynamics contain current market expectations. To my knowledge, any other author has not presented similar application of the BGM model in the Czech financial market environment. In this thesis I further predict a Czech and Euro area money market yield curve dynamics using the CIR and the GP models as representatives of various types of interest rates models to compare these predictions with BGM predictions. I suggest a comprehensive system of three criteria, based on comparison of predicti- ons with reality, to describe a predictive power of selected models and an appropria- teness of their use in the Czech market environment during different situations in the market. This analysis shows that predictions of the Czech money market yield curve dynamics based on the BGM model demonstrate high predictive power and the best 8 quality in comparison with other models. GP model also produces relatively good qua- lity predictions. Conversely, predictions based on the CIR model as a representative of short rate model family completely failed when describing reality. In a situation when the economy allows negative rates and there is simultaneously a significant likelihood of their implementation, I recommend to obtain predictions of Czech money market yield curve dynamics using GP model which allows existence of negative interest rates. This analysis also contains a statistical test for validating the predictive power of each model and information on other tests. Berkowitz test rejects a hypothesis of accurate predictions for each model. However, this fact is common in real data testing even when using relatively good model. This fact is especially caused by difficult fulfilment of test conditions in real world. To my knowledge, such an analysis of the predictive power of selected interest rate models moreover in the Czech financial market environment has not been published yet. The last goal of this thesis is to suggest an appropriate approach to obtaining pre- dictions of Czech government bonds risk premium dynamics. I define this risk premium as a difference between government bond yields and fixed rate of CZK IRS with the same length. I apply the GP model to describe the dynamics of this indicator of the Czech Republic credit risk. In order to obtain a time series of the risk premium which are necessary for estimation of GP model parameters I firstly estimate yield curves of Czech government bonds using Svensson model for each trading day since 2005. Resulting si- mulations of risk premium show that the GP model predicts the real development of risk premiums of all maturities relatively well. Hence, the proposed approach is suitable for modeling of Czech Republic credit risk based on the use of information extracted from financial markets. I have not registered proposed approach to risk premium modeling moreover in the Czech financial market environment in other publications.
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Expected development of Business Intelligence applications in the coming years
Aschmann, Jakub ; Pour, Jan (advisor) ; Fortinová, Jana (referee)
This thesis focuses on the development of Business Intelligence applications. The main area is the potential development in the coming years, history of business intelligence and individual components. To acquire the necessary knowledge, I studied educational materials and electronic publications. In Chapter 3 I focus on the definition of BI, in the following chapter I analyse individual components and the last chapter is dedicated to the development in the future. This thesis will provide comprehensive knowledge and trends in business intelligence to readers who are interested in this area and are looking for complex information.
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STRAIN ENGINEERING OF THE ELECTRONIC STRUCTURE OF 2D MATERIALS
del Corro, Elena ; Peňa-Alvarez, M. ; Morales-García, A. ; Bouša, Milan ; Řáhová, Jaroslava ; Kavan, Ladislav ; Kalbáč, Martin ; Frank, Otakar
The research on graphene has attracted much attention since its first successful preparation in 2004. It possesses many unique properties, such as an extreme stiffness and strength, high electron mobility, ballistic transport even at room temperature, superior thermal conductivity and many others. The affection for graphene was followed swiftly by a keen interest in other two dimensional materials like transition metal dichalcogenides. As has been predicted and in part proven experimentally, the electronic properties of these materials can be modified by various means. The most common ones include covalent or non-covalent chemistry, electrochemical, gate or atomic doping, or quantum confinement. None of these methods has proven universal enough in terms of the devices' characteristics or scalability. However, another approach is known mechanical strain/stress, but experiments in that direction are scarce, in spite of their high promises.\nThe primary challenge consists in the understanding of the mechanical properties of 2D materials and in the ability to quantify the lattice deformation. Several techniques can be then used to apply strain to the specimens and thus to induce changes in their electronic structure. We will review their basic concepts and some of the examples so far documented experimentally and/or theoretically.
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