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Geodetic Deformation Measurement of Wide-Span Timber Roof Structures
Karas, Jindřich ; Švábenský, Otakar (referee) ; Bureš, Jiří (advisor)
The aim of this thesis is deformation measurement of wide-span timber roof structures of swimming pool in Brno - Kohoutovice. The thesis deals with measuring of other stage, processing of surveying data, evaluation of deformation and graphic interpretation. Results of measurements follows up two stages in years 2009 and 2010. The part of the thesis is calibration measurement of surveying instruments and used measuring accessories.
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Dynamic analysis of structure loaded seismic loads
Havlíková, Ivana ; Nevařil,, Aleš (referee) ; Vlk, Zbyněk (advisor)
The purpose of my master’s thesis is the solution steel hall with concrete columns, that is loaded by an earthquake. This simulation program was used RFEM. To calculate was used the spectral and temporal analysis, and that on models of structures with several combinations of materials. The analysis was performed for both the general direction of the earthquake, so for combinations of directions according to standard procedures in EC8.
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Performance tests of the recycled aggregates to roads
Karásková, Romana ; Valentin,, Jan (referee) ; Stehlík, Dušan (advisor)
The work is divided into two parts. The practical part deals with the testing properties of soils which are using in new road in Nové Město na Moravě and the testing of recycled materials which could replace this soils from road. The aim this part is to obtain values of elastic modulus which are then inserted into the computational model. In the second part of work the track road is modeled in the software which uses the Finite Element Method to calculate and respect physical properties of different materials and a load. The result of work will be studies with comparison of displacement and stress generated to using existing soils and recycled materials.
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Power Factor Controllers for Switch-Mode Power Supllies
Gálus, Matej ; Steinbauer, Miloslav (referee) ; Murina, Milan (advisor)
The aim of this thesis is to design an active power factor correction (PFC) circuit for correcting a power factor of a switching power supplies. Various possible causes of bad AC mains power factor are discussed. Differences between linear and non-linear loads’ behaviour to AC mains are recognized and discussed. Various passive and active solutions for correcting current displacement and harmonic distortion are reviewed. Boost converter with quasi-resonant switching controlled by Texas Instruments’ UC3855 is chosen for highest total power factor for given power level against other topologies and its high efficiency and lower EMI against traditional boost converter. Various circuit parameters are simulated using PSpice. Complete circuit diagram for an 1kW output power level and worldwide mains voltage compatiblity is designed. After the device prototype was constructed, efficiency measurements were made and measured values are less than expected. This was apparently caused mainly due to absence of saturable reactor and implementation of resistive damping of the quasiresonant circuit’s parasitic resonance. Measured values of power factor are, however, very high and do meet the design expectations.
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Engines for Le Mans Series
Herman, Pavel ; Blaťák, Ondřej (referee) ; Svída, David (advisor)
This bachelor´s thesis deals with the overview of development the drive units, which are used by racing cars of Le Mans endurance series, mainly the race 24 hours of Le Mans. In the first part is outlined the general characteristic the series and the race 24 hours of Le Mans itself. There are briefly described the instructions and the most important technological limitations, observed by designers. The second part contains an owerview of racing cars engines, which are interesting from the historical point of view either by their construction or by achieved success. The last part is devoted to the constructional comparison of drive units of present participants the Le Mans series, their description and the important technical specifications.
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The assesment stability of the cliff
Bíba, Tomáš ; Lossmann, Jaroslav (referee) ; Horák, Vladislav (advisor)
The stability of rock walls and slopes are an integral part of professional geotechnical assessment wherever there is a breach of natural or rock mass. Assessment always depends on the expertise and experience in particular industries that report preparation. Performed mostly analytical calculation (classic or using software) or numerically. The best way is to use both methods and compare them. The aim is always best to estimate the behavior of rock mass and to ensure its safety.
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The Expulsion of Germans Thematized in Present Czech Prose
KRLÍN, Jan
The thesis deals with the problem of the expulsion of Germans in Czech literature, particularly in novels such as Stain/Stigma, The Expulsion of Gerta Schnirch, and Lost Children. All these three works were published after 1989 and thus are not influenced by a socialist discourse. They pit, on the contrary, against it and in the way of describing the theme they follow up The Divine Rainbow by Jaroslav Durych and Adelheid by Vladimír Körner. The expulsion is relatively often reflected. Starting with Anna Sedlmayerová, through Václav Řezáč, Vladimír Körner, Zdeněk Šmíd, and finishing with Kateřina Tučková. Each of them approaches this theme in their individual way. Řezáč in the spirit of his time-discourse, which he co-creates with his work; Durych and Körner rail against Řezáč's conception; Šmíd and Tučková both feel a personal need to give their opinion, as the expulsion partly touches them and speaks to them through the land and the town. The identity of literary characters is in large measure defined by the time-discourse, in which the work originates, and the discourse of the period, which is depicted. Two types of influence arise from this. The part of the discourse is folk myths, transformed and modified for several times, so they can be used for particular aims and a particular period. How influential for the literary discourse of the expulsion were the myths created is going to be clear from the conclusions. Similarly I will try to answer the question how far are the discourse and the formation of the identity of literary characters in interpreted works tied to each other.
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Evaluation of vegetation remnants of former settlements in selected border areas
KALNÁ, Eva
Eva Kalná, 2010:Evaluation of vegetation remnants of former settlements in selected border areas. It was chosen region Zhůří for this work, which is one of the displaced villages at Šumava Mountains, which was part of the Dobrá Voda military training area. First, the work is devoted to the history of the village and then to changes in vegetation both directly and indirectly influenced by humans. The part of theme of this paper is primarily exploring areas of interest in terms of plant species, providing evidence of former settlements and making photographs and map outputs for each species found. The next theme is the evaluate of using the area from 1949 to the present, which over decades has fundamentally changed. Work also focuses on comparisons between the state of use from the 1949 today state habitat.
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