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Syntetické pojmy a priori
Duží, M. ; Materna, Pavel
Concepts are explicated as objective procedures ("constructions" in transparent intensional logic). All mathematical concepts are a priori. Analytic mathematical concepts are effective procedures that compute some recursive functions. Synthetic mathematical concepts either identify a non-recursive function or identify a recursive function in a non-effective way. There are more synthetic concepts a priori than analytic concepts a priori.
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Assesment of residual stress with drilling hole method using FEM
Civín, Adam ; Vlk, Miloš (referee) ; Hlavoň, Pavel (advisor)
Residual state of stress in structural materials affect positively or negatively behaviour of component parts. The goal of this scope is not to deal with possible process of creating residual stresses neither about elimination of residual stress, but is focused how to determine magnitude of residual stress by hole-drilling method. We need to know magnitude and direction (angular orientation) of principal stresses to determine how residual state of stress affects behaviour of specimen. The most widely used modern technique for measuring residual stresses is hole-drilling strain-gage method. Hole-drilling method is in scope of this paper and is restricted only for measuring uniform residual stresses of steel specimens with finite dimensions. Structural, linear, elastic and isotropic material model is used with material properties =0,3 and E=2,1[10]^5 MPa. For correct application of this method we need to determine calibration coefficients “a“ and “b“ first. These coefficients are used to determine magnitude and direction of residual stresses in specific depth and diameter of drilled hole for materials with finite dimensions. Geometry and shape of model is simply represented by block with planar faces. Note that numerical determination of calibration coefficients is useful only for one type of strain gauge rosette RY 61 S. Main goals of this thesis are motivation and request to clearly report effectiveness, accuracy and applicability of calibration coefficients in relation to thickness of specimen, dimensions of drilled hole, condition of “through” or “blind” hole and number of drilled increments. High quality and accuracy of created numerical model is necessary too. Numerical simulation of residual stresses by MKP needs to be done to obtain requested results. All results are presented by 3D, 2D graphs and tables and compared with analytical results or results from other authors. Although is this publication focused on numerical modeling using FEM, hole-drilling method has many significant restrictions. The most substantial of them is influence of eccentricity of drilled hole, creation of stress concentration near drilled area and subsequent plastification, influence of geometrical inaccuracy of hole, etc. All these aspects have significant influence of determining calibration coefficients and can not be included into numerical simulation. These problems are closely discussed in background research. All obtained results should be helpful for practical use of calculated calibration coefficients to determine uniform residual stresses of specimens with various thickness and drilled hole. All these results are also applicable only for one type of strain gauge rosette, which is RY 61 S.
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Comparative analysis of economic behavior on chosen population of former soviet union countries: Russia, Ukraine and Kazakhstan
Pikman, Oxana ; Hubinková, Zuzana (advisor) ; Kašparová, Eva (referee)
Master thesis was focused on comparative analysis of economic behavior on chosen population of Russia, Ukraine and Kazakhstan. The main goal of this thesis was to define basic trends of the economic behavior in the different dimensions such as history, politics, economics, law and psychology. In the beginning of the thesis was set up hypothesis concerning main factors contributed to the related topic: adaptation, control, trust and fear. Analytical part was focused on research of relationship between defined factors and the process of choosing economic behavior strategy.
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Analysis of software requirements in the environment of bank instituiton
Theier, Radek ; Bruckner, Tomáš (advisor) ; Benešovský, Miroslav (referee)
This diploma thesis deals with the requirements engineering as one of the key areas of development of software applications. By requirements prospective users express their needs and goals which shall be achieved using the developed application. The correctness and completeness of the requirements is thus critical for the success of any software project. The main objective of this dissertation is determination of steps which must be made to improve quality of requirements on real software project in Czech financial institution. This is achieved by analysis of current requirements development process as well as by analysis of the sample of specific requirements. One part of the carried out analysis focuses also on the revision of actual settings of Atlassian JIRA application which is used for requirements management. Based on the analysis some crucial shortcomings are identified and steps for their elimination are introduced. This includes, inter alia, manual of how to specify correct requirements and checklists for different actors who work with requirements. The theoretical part gives a comprehensive overview of selected techniques and practices which are applicable for requirements gathering and analysis. Every mentioned technique is then evaluated from the perspective of its usability in the environment of large Czech bank. This overview can be useful both for junior analytics as a collection of best practices and for senior analytics as an overview of possible areas for their professional development.
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Valuation of the company DEKTRADE, a.s.
Krupa, Štěpán ; Scholleová, Hana (advisor) ; Habrnal, Marek (referee)
The aim of this Master's Thesis is valuation of the company DEKTRADE, a.s. as determined by possible independent analytic using publicly accessible information or data that could be acquired when in touch with management of the company as at January 1st 2013. Results of the thesis are supposed to analyze the corporation itself from the strategically-financial point of view, specify the height of its value if offered to a potential buyer and at last but not at least to help the board of managers to see the conceivable outlook of main competitors on DEKTRADE, a.s. The Thesis is split to theoretical and practical part where the first one should constitute solid methodological base for the final valuation of the company. Keystones of the latter are strategic and financial analysis followed by financial plan and specific techniques of valuation of the company. The ending of the Thesis is devoted to Monte Carlo simulation of results with respect to risk exposition of the computed values.
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Comparison of HPLC a GC-MS method for pesticide determination in soil
Chalbia Václavíková, Alena ; Kočárek, Martin (advisor) ; Havlík, Jaroslav (referee)
Physical and chemical properties of pesticides may vary significantly. Pesticides can be acidic, neutral or alkaline. Some compounds containing phosphorus, other sulfur, nitrogen or halogens. These atoms can be important for the detection of pesticides. Some of the compounds are volatile, others on the contrary not evaporate, which is also one of the important properties for chromatography. The diversity of pesticides actually makes it impossible to create a universal method, which is very impractical in terms of quality and time determination. Because that pesticides are one of the most chemicals in most countries. In the food and drinking water are limits on pesticides in order to avoid negative impact on public health. For residues in soil or surface water limits are set. (Lutz et al., 2006)
The objective of this thesis is to evaluate the possibility of using two types of chromatographs with different detectors for the analysis of pesticide. Pendimethalin which was chosen for this work, will be analyzed usinga liquid chromatograph with UV detektor and gas chromatography with mass detector. Both this method will be compared as well two extraction methods (Soxhlet extraction and shaking), and two extraction agents (methanol and acetonitrile).
Another point of the work is to provethe hypothesis that, for the determination of pendimethalin in soil is by gas chromatography using a mass spectrometer in comparison with the high performance liquid chromatography time and more expensive, but will achieve a higher yield and a lower detection limit of the pesticide.
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Characterization of separation systems for determination of enantiomers
Geryk, Radim
(EN) The dissertation thesis is focused on the research and characterization of retention and enantiorecognition mechanisms of chiral stationary phases based on derivatized polysaccharides. The separation systems with a variety of modern stationary phases (both achiral and chiral) were characterized in detail to provide a comprehensive view of the interactions participating in the separation process. The study of the retention/separation behavior significantly facilitates the development and the optimization of new enantioselective methods for a wide variety of compounds. The work deals with the comparison of enantioselective performance of polysaccharide-based chiral stationary phases. The objectives are to show the differences of separation behavior among these chiral stationary phases, as they differ by the nature of the polysaccharide backbone (amylose versus cellulose), by binding of chiral polymer to silica support (coated versus immobilized stationary phase) and by the phenyl moiety in the reversed and normal phase HPLC. In both separation modes amylose-based chiral stationary phases exhibited higher enantioselectivity, especially for acidic and bifunctional analytes. Chiral stationary phases based on derivatized cellulose showed higher enantiodiscrimination potential for basic analytes....
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Redevelopment study for brownfield of Rukavičkářské závody in Dobříš
Kortusová, Daniela ; Novotný, Vojtěch (advisor) ; Peltan, Tomáš (referee)
The topic of this bachelor thesis is redevelopment study for brownfield of Rukavičkářské závody and near surroundings in Dobříš. The study is composed from the three parts. The theoretical part deals with problems of the brownfields, functions built-up areas and arrangement infrastructures.
The second part of this thesis deals with analyzes this territory, that are important for creation of the study. In the end of this chapter were determinated the problems and values of this territory.
On the base of the analytic results and theoretical principles is suggested resolution. The result of this study is master plan of the mixed living area with good interconnection the surrounding areas and town center.
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