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Use of Photovoltaic Power Plant with Batteries for Warehouse and Office Spaces
Kořenek, Jan ; Vojtek, Martin (referee) ; Mastný, Petr (advisor)
This diploma thesis deals with the photovoltaic power plant in Zlín. Power plant is used for electricity supply of office building and stock. For better self-sufficiency there is designed battery system as storage for electrical energy which the object can not consume itself. In the theoretical part there are described development of photovoltaics and components used in power plants. Further there was described the building, construction of photovoltaic power plant and eventually also a subsidy program by which the project was financially supported. Main task in the practical part was to develop scripts in Matlab for evaluation of online measured data. Next point was an energetic evaluation of power plant operation. In the end there was calculated power plant return with subsidy support and without support. These calculations were done in PV SOL software. Eventually, there was evaluated how the system works and how the power generated by the photovoltaic power plant is used. In conclusion, there is summary of the measurements and calculations.
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Bussiness intelligence means in modern information systems
Vojtek, Martin ; Richta, Karel (referee) ; Král, Jaroslav (advisor)
Business intelligence (BI) is the ability to find and understand complex relations in business, to effectively adapt to changes of environment (competition, market, trends), to learn from data. Integration of BI applications with existing enterprise information systems leads to complex process. This process can comprise information, process, portal and service oriented integration. For this type of integration, it is also possible to use ESB technology. When integrating such complex systems, usage of standards gains great importance and significantly contributes to the architecture of result solution. Implementation of integration of BI applications with enterprise information systems represents the EPA application, which is built on Java EE integration platform with usage of JBosss, open source application server, Oracle database, data mining tools and ETL. Data warehouse implemented on the top of Oracle database is used for the integration of data sources. Part of the application presenting graphs and interactive cross tables is built on JBoss Seam, modern integration framework, which integrates technologies like JBoss Rules, JSF, EJB3 and jBPM.
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Essays on Interest Rates and Credit Risk
Vojtek, Martin ; Kočenda, Evžen (advisor) ; Palda, Filip (referee) ; Čihák, Martin (referee)
This dissertation addresses inefficiencies and problems in the financial markets of post-transition countries, which denies the use of standard estimation techniques. It focuses on interest rate markets and empirically analyzes the situation in the countries that joined the EU in May 2004. These countries underwent significant changes over the last two decades and markets in these countries are often not stable and not developed. In my dissertation I am conducting research in the areas where the empirical results are very scarce. A deeper understanding of the specifics in the markets of post-transition countries can be very helpful for example in designing policy measures touching these markets.
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Macroeconomic Factors as Drivers of LGD Prediction: Empirical Evidence from the Czech Republic
Belyaev, Konstantin ; Belyaeva, Aelita ; Konečný, Tomáš ; Seidler, Jakub ; Vojtek, Martin
This paper focuses on key macroeconomic driving factors influencing the loss given default (LGD) – an important credit risk parameter determining credit losses of the banking sector. Various econometric approaches are applied on both individual and aggregated data for different bank segments in order to identify the sensitivity of LGD parameters to both the micro characteristics of debtors and aggregated macro-level data. Despite the relatively low importance of macro variables in the model combining micro- and macroeconomic information, our estimates suggest that the macroeconomic environment contributes directly to the variation in LGD. The results from the different approaches confirm a negative link between LGD and consumption growth for the retail portfolio, while in the case of the corporate segment, a negative link between LGD and real GDP growth is identified. Importantly, given that aggregation effects and non-linearities may substantially affect the choice of relevant macroeconomic variables, it is essential to distinguish between models employing purely macroeconomic data and models combining micro- and macro-based information.
Fulltext:  PDF
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