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Analysis of selected silicate based composites volume changes
Kubeš, Pavel ; Šimonová, Hana (referee) ; Keršner, Zbyněk (advisor)
This diploma thesis deals with the analysis of volume changes of selected silicate based composites. The first part introduces the issue of volume changes of concrete, especially the shrinkage process, two selected models for shrinkage prediction, describes configuration and course of performed tests, as well as the processing of measured experimental data. The second part contains input data modified by the program GTDiPS and another calculated parameters. The result of the work is the evaluation of the influence of thermal dilation on the development of shrinkage of young concrete. Another output is the comparison of accuracy of the two selected prediction models to capture the course of measured shrinkage.
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Mechanical fracture parameters of concrete after exposure to high temperatures
Bejček, Michal ; Keršner, Zbyněk (referee) ; Šimonová, Hana (advisor)
The diploma thesis is focused on the evaluation of mechanical fracture parameters of concrete after exposure to high temperatures. In the introductory theoretical part general principles of fracture mechanics with the concentration on a linear elastic fracture mechanics and non-linear fracture models for the concrete are summarized. The meaning of the three-point bending fracture test used for determination of fracture parameters is also explained. Further the influence of high temperatures on the partial components of concrete and general modeling of temperature loading is described. The practical part is concerned with the evaluation of fire experiments on the concrete panels including numerical simulations using GiD and ATENA software. The evaluation of data obtained from the three-point bending test carried out on specimens with initial stress concentrator taken from concrete panels is a main part of the diploma thesis. The values of modulus of elasticity, effective fracture toughness, work of fracture and fracture energy are determined from the measured F–d and F–CMOD diagrams after their proper corrections in the GTDiPS application. The evaluation of the selected mechanical fracture parameters was performed by StiCrack software using effective crack model and work of fracture method and DKFM_BUT software using the double-K fracture model. Finally, the attention is paid to the analysis of the obtained data.
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Analysis of the Regional School System Financing (the Financing of Schools Established by Regions, Municipalities, or Associations of Municipalities) in Accordance with Applicable Regulations and the Method Proposed by the Ministry of Education, Youth and Sports
Šimonová, Hana ; Matušková, Zuzana (advisor) ; Kitzberger, Jindřich (referee)
The thesis deals with the issues of financing the regional school system (schools established by regions, municipalities or associations of municipalities) in all regions of the Czech Republic from the state budget with respect to particular types of schools (kindergartens, primary schools, secondary schools) and in accordance with applicable regulations and the ways proposed by the Ministry of Education. It also mentions potential future prospects. The thesis is based on the conclusions of Educational Policy Strategy of the Czech Republic till 2020, which prefers stability and greater predictability in financing the education policy. The thesis compares the regional per capita amounts for individual types of schools, calculated according to the current method of financing, with the Conceptual Reform Plan for Financing the Regional Education System, issued by the Ministry of Education in 2011. The aim of the thesis is to decide (through the analysis and critical evaluation of the results obtained) which funding system appears to be preferable and fairer for particular types of schools. The results of the research could potentially be used for making comparisons with the newly prepared reforms of financing the regional education system.
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Issue of taking leave for teaching and non-teaching staff
Šimonová, Hana ; Kitzberger, Jindřich (advisor) ; Svoboda, Petr (referee)
This bachelor degree thesis deals with the planning of annual leave for teaching and non-teaching staff and with their taking leave in different types of schools and educational establishments in the district of Havlíčkův Brod run by municipalities, in relation to valid legal regulations. It is based on the assumption that annual leave is planned for the purpose of using up all leave of all employees in the year when they are entitled to take it. The thesis summarizes the reasons for which not all annual leave is taken, looks at the compliance with legal regulations and tries to find out in which parts of schools and in which categories of staff the biggest problems with taking annual leave arise and how this affects the school budget. The results of the research survey could be applied in the vocational education of headmasters and headmistresses.
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Syrians in the Czech Republic
Šimonová, Hana ; Pargač, Jan (advisor) ; Kumsa, Alemayehu (referee)
The thesis "Syrians in the Czech Republic" is engaged with the Syrians living in the Czech Republic, and their activities here. Attempts to outline the Syrians view on the Czech society and their integration into Czech society. The main method of work is a field research among the Syrians supplemented with study of technical literature. Keywords Syria, Syrians, the Arabic spring, the Arab revolution, Bashar Assad, the Baas, Syrian identity, islam, emigration, immigration, integration process, problem of identity
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Evaluation and simulations of fracture test of concrete specimens in selected configurations
Halfar, Petr ; Šimonová, Hana (referee) ; Keršner, Zbyněk (advisor)
This thesis deals with the evaluation of the selected fracture test configurations of concrete specimens. These configurations are the wedge splitting test or combinations of wedge splitting test and three point bending. The first part is theoretical and it describes the use of fracture mechanics on the quasi-brittle material - concrete. There are also described linear and nonlinear fracture theory, improvement process of fracture tests and also determination of the fracture parameters from the tests. The second part is practical and it describes editing of load-displacement diagrams by using GTDiPS application and then evaluation of the diagrams. The result of this work is comparison of the concrete fracture energy in each geometric variations of the tests.
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Bend specimens: Numerical support in software ANSYS
Viszlay, Viliam ; Šimonová, Hana (referee) ; Seitl, Stanislav (advisor)
The aim of the thesis is the investigation of fracture-mechanics parameters on specimens made of quasi-brittle materials. The principles of two-parameter fracture mechanics are used. Couple of numerical simulations were done and their outputs are used for two main analysed specimen geometries. For simulations the finite element method software ANSYS is used. In the first part, the thesis focuses on bended specimens. The influence of different geometric parameters on fracture mechanics behaviour of cracked specimen is investigated. For model calibration the outputs of other authors are used. In the second part the specimens for modified compact-tension test (CT test) are analysed. Similar to the first part, the influence of geometric parameters of the specimen (in this case, the specimen size) on fracture mechanics parameters were investigated. The modified CT test was derived from CT test which is commonly used for metal materials testing as the suitable geometry for cement-based composite materials testing. The outputs of both parts are calibration polynomials, which are expressions obtained for different specimen geometries, giving the value of fracture mechanics parameter as the function of specimen geometry. As the example, calibration curves are used to obtain fracture toughness of tested material using the outputs from recent experiment.
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