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Charakteristika a metody tavného svařování
Hrabčík, Jiří
This bachelor thesis is focused on characterization of methods of fusion welding. The methods are characterized according to their function and area of application, which is different for all of these methods. Every method is also analyzed with regard to its fundamental principle along with the advantages and disadvantages. Moreover, the thesis defines the particular field of use for every single method. Furthermore, the work is focused on defects that may arise at the site of the weld bead, or in the heat affected zone surrounding the weld. Individual defects are characterized by their origin and effect on mechanical or technological properties of the welded material. The last part is focused on the TIG method and provides descriptions of welding equipment, application areas and the basic principle of these methods.
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Comparison of joints range of former top volleyball players and male population not engaget in sports (50-60 years old).
Lavičková, Romana ; Vorálek, Rostislav (advisor) ; Buchtel, Jaroslav (referee)
Name: Comparison ofjoints range of former top volleyball players and male population not engaged in sports (50- 60 years old) Aim of the Work: Aim ofthe study is to determinate difference betweenjoints range offormer top volleyball players (extra league, 1st league, 50-60 years old) and men almost not engaged in sports (same age category). Method: The methods ofmeasurements, comparison, evaluation and summarization have been used. In case ofmeasurements goniometry has been used (measurement ofjoint range) - particularly the planimetry, i.e. measurements of reached angles. Results: Results proveď that joints offormer top volleyball players were more attrited. Keywords: Volleyball, goniometry, joints, joints range
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Finanční ohodnocení krásy krajiny - metoda CVM
Cudlínová, Eva ; Lapka, Miloslav
Evaluation of landscape amenity is not very common and relatively difficult from the economic point of view. In our case study focused on comparing aesthetic preferences of Czech and Japan respondents regarding rural landscape. We used the contingent valuation method. We also wanted to reveal the respondent’s preferences in a financial form. These preferences served us as quantitative indicator for an attestation of the respondent’s qualitative preferences. It seemed that a strong correlation between the aesthetical and financial evaluation exist in two extreme cases – respondents were not interested, or they were strongly involved in landscape amenity. A substantial difference occured between the Czech and Japanese respondents in the case of case of open or closed access to the landscape.
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Study of the synthesis and structure of ceramic perovskite materials for energy applications
Strejček, Josef ; Bartoníčková, Eva (referee) ; Cihlář, Jaroslav (advisor)
Method, so called “glycin- nitrate process”, combined with high temperature solid state reaction, of preparation multi- component ceramic perovskite materials was studied. Two types of perovskite systems were prepared by this method. Firs one, based on LaNiO3 doped by calcium and aluminium and second one, based on SmFeO3 doped by calcium and nickel or cobalt. This method made possible preparation of one phase perovskite or perovskites with few percent of nickel in form of oxide. In systems containing both nickel and calcium another phases rich in calcium and nickel appeared.
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Propagation of inclined cracks to the interface of ceramic laminates
Novotná, Lenka ; Trunec, Martin (referee) ; Chlup, Zdeněk (advisor)
Composite materials with laminated structure provide advantages which are utilised during component design. Low density, temperature and chemical stability are the profitable properties predetermining application of ceramic laminates. The main obstacle for wide spread of ceramic materials is their inherent brittleness. Therefore, in this thesis, the crack propagation in ceramics laminates has been extensively studied. Laminated structures with various volume fractions of components (alumina and zirconia) were prepared by electrophoretic deposition. Evaluation of crack propagation through the interface and determination of basic mechanical properties was conducted on the basis of extensive literature search. Crack deflection originated in both presence of internal stresses and differences in elastic modulus during the crack interface passing was monitored. A special type of specimen geometry was employed with the aim to set arbitrary angle between crack and interface. It was experimentally found that the degree of crack deflection is dependent on entering angle and volume fraction of components. Higher crack deflection was already found in the bulk of the test piece comparing to the test piece surface. The 3D fracture surface reconstruction generated using laser confocal microscopy was used in this detailed crack propagation study. Further basic elastic and strength characteristics of laminates were determined and compared to those obtained from monolithic materials. The validity of the mix rule for elastic characteristics was confirmed by comparing of elastics modulus. The most reliable method for elastic modulus determination was marked the dynamic resonance method due to low scatter and consistency in measurement. The flexural strength of all laminates tends to be close to the flexural strength of the weakest component. Therefore the mix rule is not applicable for flexural strength estimation on the contrary of elastic characteristics. The change of component volume fraction leads only to change of flexural strength scatter. Thanks to gained knowledge about crack propagation and basic characteristic determination will be possible to design ceramic laminates more efficiently for given needs of application.
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Training of volleyball playing skills of boys and girls in junior category
Elčkner, Michal ; Buchtel, Jaroslav (advisor) ; Vorálek, Rostislav (referee)
Title: Training ofvolejbal playing skills ofboys and girls in junior category. Work objectives : Creating a set of simple technical tests for the junior category for a particular voleyball activities and their evaluation. Comparison of the outcomes and defining the differences between girls and boys category. Methodology: Monitoring ofplayers' performance development in motor tests within observed and control group ofthose players by using comparative method. During monitoring three tests were made that supplied input, control and output data.T-test method for pair values ofdepending selections was used to process and analyze obtained data. Results: Results show to instructors of the tested group the control over the training and doing the particular volleyball activity, methods oftraining and the technical improvement of the team. The after comparison of boys and girls shows the speciality of the motoric progress in this age. Keywords: Keywords Volleyball Playing activity of an individua! Volleyball ofthe youth Training - 5 -
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The phenomenon of refugees in the Syrian civil war
Durdisová, Marcela ; Lisa, Aleš (advisor) ; Prorok, Vladimír (referee)
This thesis deals with the current issue of refugees on the background of the Syrian civil war and its consequences for stability in the region. With regard to the fact that the crisis in Syria is felt throughout the entire Middle East region, the aim of this work is to map the impact of the conflict on neighboring countries of Syria. Based on the hypothesis, the effects of civil war and refugee phenomenon destabilize the whole region; therefore, my research question concerns political and social implications of the Syrian crisis in Iraq, Jordan, Lebanon and Turkey. The work also reveals the vulnerability of these countries, which find themselves in a dangerous situation resulting from the Syrian events. In terms of methodology, this work uses a variety of methods. My research relies especially on the methods of research, description, comparison, analysis and synthesis, historical method and interview method as well. Based on these methods, I will answer the research question through a wide range of impacts, covering security, political, social, ethnic, and economic issues of the analyzed countries.
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Reliability assessment of bodies with general singular stress concentrator
Klusák, Jan
The paper presents a method leading to reliability assessment of bodies with general singular stress concentrator. The method uses combination of analytical and numerical procedures to determine fracture-mechanics parameters. The approach is based on comparison of fracture behaviour of body with a crack and a body with a general singular stress concentrator. The goal of the paper is to determine value of applied stress that leads to initiation of failure of construction.
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The Impact of the Grundtvig Programme on the Functioning of Further Education Institutions in the Czech Republic and on the services they provide
Těžká, Štěpána ; Pělucha, Martin (advisor) ; Kouřilová, Jana (referee)
The thesis evaluates the impact of the Grundtvig programme on Czech further education institutions in the medium term. The first part presents the concept of further education as a soft factor of regional development and also the applied research methods. The next section presents the Czech and European lifelong learning strategies and the programme is shown as a part of the Lifelong Learning Programme and as one of the financial instruments of the EU. The main part of the paper presents the analysis of the use of the Grundtvig programme by the Czech institutions and the impacts on them assessed by a questionnaire survey among supported institutions. The work identified a major impact on the organizations in the area of know-how transfer from abroad, while in the area of networking or creation of innovative outputs identified impacts were minimal.
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