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The magnetic solid phase extraction as advanced and rapid method for isolation of hydrocarbons from water before analytical detection
Komárek, K. ; Kandelová, M. ; Šafaříková, Miroslava ; Šafařík, Ivo
For existing methods for isolation and pre-concentration of hydrocarbons from aqueous phase, new process based on the magnetic solid phase extraction (MSPE) was proposed. By this way the magnetic sorbent is added into the water sample and the suspension is mixed for some little time. The sorbent with hydrocarbons is separated from aqueous phase using magnetic field. Hydrocarbons from the separated sorbent are eluted by small amount of solvent. The magnetic sorbent is isolated using magnetic field and acquired extract is applied to gas-liquid chromatography analysis. The optimal conditions for each sorbents have to be found for the individual steps of MSPE. The study is focused on the mix of aliphatic hydrocarbons (C10 – C13) and avgas. Magnetically modified activated carbon Chezacarb B was used as sorbent.
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The analysis of price elasticity of demand for beer
Hromadníková, Kateřina ; Mirvald, Michal (advisor) ; Babin, Jan (referee)
The thesis analyses price elasticity of beer demand. Hypothesis about inelastic demand is tested first for nationwide level and then on data of specific brewery. Elasticity was determined by regression analysis, specifically by ordinary least squares with all variables expressed in logarithmic form. Consumption of beer is the endogenous variable and price of bottled beer (price of one hectoliter of beer in case of brewery), average gross income and price level are in the role of the exogenous variables. The hypothesis about inelastic demand was successfully proved. Price elasticity estimates range from -0,66 to -0,2. In case of specific brewery price was not significant. On the other hand, average gross income seems to be the significant determinant. According to income elasticity beer seems to be luxury good in case of specific brewery and necessity in case of nationwide level.
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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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On possible approaches to detecting robotic activity of botnets
Prajer, Richard ; Palovský, Radomír (advisor) ; Pavlíček, Luboš (referee)
This thesis explores possible approaches to detecting robotic activity of botnets on network. Initially, the detection based on full packet analysis in consideration of DNS, HTTP and IRC communication, is described. However, this detection is found inapplicable for technical and ethical reasons. Then it focuses on the analysis based on network flow metadata, compiling them to be processable in machine learning. It creates detection models using different machine learning methods, to compare them with each other. Bayes net method is found to be acceptable for detecting robotic activity of botnets. The Bayesian model is only able to identify the botnet that already executes the commands sent by its C&C server. "Sleeping" botnets are not reliably detectable by this model.
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Possible ways to breach the water supply system a draft of the measures to prevent its abuse in South Bohemia.
SOUKUPOVÁ, Eva
The theoretical part of the thesis focuses on the characteristics of water as the basic structural element of the life on the Earth. It also mentions regulations related to critical infrastructure, water protection and water management. It describes water management system of the Czech Republic and the South Bohemian Region. It similarly characterizes the most probable chemical, biological or radiological water contaminants that might be abused by a man in the case of trespassing into waterworks system objects. The aim of the thesis was to map possible threats to the waterworks system and to propose follow-up measures preventing the South Bohemian Waterworks System from abuse. Upon identification of possible threats in the territory of South Bohemia and from the point of view of the extent of the thesis the text then focuses on intentional threat of waterworks object by a man. The research part first deals with more detailed description of the South Bohemia Waterworks System, from drinking water via its pumping, treatment, storage to its supply to final consumers. The system of drinking water supply to inhabitants of South Bohemia is divided into sectors by means of AKIS method here. A questionnaire to employees working in the water management sphere was based on this division and particularly vulnerability and the level of security measures in the individual South Bohemian Waterworks System sectors was evaluated from the information based on their answers. In the second plan the research part of the thesis focuses on description of security elements used in South Bohemian Waterworks System objects accompanied by my own photo documentation of objects and areas administered by the South Bohemian Waterworks Union. The elements of passive and active protection used by the South Bohemian Waterworks Union are documented and described here. Application of two operation analysis methods relates to this part. Quantitative research of security of waterworks objects based on evaluation of the best secured object of the South Bohemian Waterworks System was first performed. The obtained results enable us to determine which of the South Bohemian Waterworks System premises has the best active and passive security against trespass of unauthorized persons. To assess relevancy of the quantitative security research the method of relative comparison of waterworks objects security and its consequent interpretation by the security index is also used. The security index describes object protection against possible trespass within the whole area of the object. Application of this method brings numeric interpretation and identification of the overall security of the South Bohemian Waterworks System with regard to preference of the monitored parameters. The same result is achieved by both the methods. The applied operation analysis methods have revealed that the heart of the South Bohemian Waterworks System, the Plav drinking water treatment plant, the only drinking water treatment plant of South Bohemia supplying majority of South Bohemia inhabitants with drinking water, is the best protected object. Pumping stations and water towers are further well secured objects. There are also completely unsecured object in the South Bohemian Waterworks System. The conclusion contains some measures that should prevent unauthorized persons from trespassing into all waterworks objects and thus protect drinking water against contamination. As the observation has revealed the protection of waterworks objects should be improved with regard to the worsening safety situation in the world. This also involves the costs the South Bohemian Waterworks Union should invest in security to introduce the most up-to-date security elements into practice. We may conclude that the major part of waterworks objects are secured against abuse both passively and actively.
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Valuation of the MSV Metal Studénka, a. s.
Honc, Adam ; Strouhal, Jiří (advisor) ; Smrčka, Luboš (referee)
The aim of this thesis is to determine the market value of joint-stock company MSV Metal Studénka for 31. 12. 2015. The thesis is divided into theoretical-methodological and practical part. The former contains the definitions of terms, techniques and methods which relate to not only the problems of company appreciation but also insolvency law focusing on corporate restructuring. In the practical part, the theoretical groundwork is applied. After the initial introduction of the company including a brief description of the course of insolvency proceeding, a strategic and financial analysis is conducted. After the evaluation of the company's financial health and future perspective, a division of assets into operationally necessary and unnecessary, analysis and value generator prognosis, financial plan formulation and the evaluation itself follow. For the final company appreciation, the discounted cash flow method in the variant of free cash flow to the firm (FCFF) is used.
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Communications Intercultural Aspect in Working Environment of a chosen Firm
Jenšovský, Šimon ; Hiršová, Miloslava (advisor) ; Balgová, Dagmar (referee)
The thesis covers cultural differences among employees of a multi-national corporation in relation to communication and task execution. Thesis aims to construct a theoretical framework to map these cultural differences and apply gathered insights in practical research targeting the effect of cultural differences on communication and task execution. Research questionnaire replicates Hofstede's work and also builds on practical application of Hofstede's work by several authors. Research data were gathered via digital questionnaire. Data refinement and evaluation was conducted using frequency description and statistical methods of structure comparison. The thesis provides a set of practical recommendations as a result. These are aimed to help reduce or possibly eliminate negative effects of cultural differences in the workplace.
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IT requirements management of insurance company
Dvorský, Petr ; Bruckner, Tomáš (advisor) ; Jungmannová, Barbora (referee)
The first part of thesis deals with theoretical knowledge, thus defining the concepts of recommendations from the field of requirements management. The second part focuses on the identification, analysis and subsequend design solutions to problems arising from working with the requirements. Methods for identifying problems are carried out workshop, participant observation and interviews with employees from the IT sector of the insurance company. The outputs of this work are proposals for improving requirements management, some of them are successfully applied in Kooperativa. The first draft, which was applied to create a process library. Further, of four different types of prioritization was selected and applied method that is defined by ITIL. Other outputs are design of new user interface of requirements software and starting to design a Change Advisory Board, which is compared to ITIL enhanced with additional features. Further was established Business Consultant Department, which has task of efficiently collecting client requirements and the supporting documents were created for this department.
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Application of Monte Carlo simulations in banking
Boruta, Matěj ; Teplý, Petr (advisor) ; Fučík, Vojtěch (referee)
Currently, banking is exposed to huge market risks. One of those risks is occurrence of negative interest rates in the EU. Nowadays, it is important to use sophisticated and modern measurement tools and approaches to measure and manage banking risks. One of those methods is Monte Carlo simulation. This bachelor thesis is aimed at analysis and prediction of 3-month maturity Prague Interest Offer Rate (PRIBOR) for 3, 6 and 12 months with using Monte Carlo simulations. It was found that this method is suitable for prediction market variables with low volatility. If anybody uses this method, it is necessity to have in mind all pitfalls and assumptions, that this method includes, as an adequate random generated number of scenarios, approximation of correct probability distribution, independence of dataset and not least, as far as possible, to focus on factors generating randomness of market variable and not the prices, that express rather consequences of randomness than its cause. Further, the Monte Carlo prediction was compared with prognosis of the Czech Nation Bank and it was found that Monte Carlo prediction is more accurate for short term predictions. 12-month prediction of Monte Carlo simulation discovered also possible occurrence of negative interest rate at 0,05% level of probability in compare to the Czech National Bank prognosis, where was no negative interest rate predicted.
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Valuation of the company Tank ONO, s.r.o.
Novák, Petr ; Strouhal, Jiří (advisor) ; Smrčka, Luboš (referee)
The output of this Master´s Thesis on the theme "Valuation of the company Tank ONO, s.r.o." is the estimation of market value of company as at the date of December 31, 2014, with the goal of selling off the company to a hypothetical general investor in the future. The theoretical part includes metodology and instruments used for company valuation, eg definition of main terms, explanation of valuation proces and methods, that are recognised as valid by specialised public. Afterwards, the second part (eg practical part) is aimed at applying the metodology in practice. First, the valuated company is shortly introduced and it is followed by financial and strategic analysis in order to evaluate the financial soundness and assess the perspective for company future. The conclusions of the above analysis are used for elaborating the value drivers and complex financial plan, that is followed by valuation of Tank ONO, s.r.o. In light of the company capital structure, there is chosen DCF equity method for final valuation, in this Thesis.
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