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Doble-balanced mixer - laboratory equipment
Dušek, Libor ; Baran, Ondřej (referee) ; Vágner, Petr (advisor)
The aim of this work was double-balanced mixer implementation, which will be used like laboratory equipment. This thesis deals with design of the double-balanced mixer from first theoretical principles to a practical design of a laboratory equipment. For the practical design the integrated mixer SA612 was used. Input signal to the mixer up to 500 MHz frequency can be used. For required operation external oscillator and fifth-order low pass filter were constructed. Oscillator was designed for fixed frequency 32 MHz. Fifth-order low pass filter was inserted between the mixer and the oscillator, because of filtering higher harmonics. The second aim of the work was measuring double-balanced mixer basic parameters, such as Compression Point (P-1dB) and Intercept Point (IP3). For the IP3 measurement, another one device was required. It consists of the power combiner for mixing two frequency close signals and third-order bandpass filter, which selects required frequency band. Finally, the laboratory equipment was fabricated and its real parameters were measured.
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Department store - Building Technology Project
Bláhová, Barbora ; Ing.Václav Čech (referee) ; Henková, Svatava (advisor)
The thesis is focused on building technology solutions for the construction department store. The front of the main entrance, designed for base personnel has two floors; the rest designed for the sale is single-storey. The building is designed as a reinforced concrete skeleton hall. Roofing is solved by a flat roof consisting of sales of reinforced concrete beams with a slope of 3 %, with the roofing sheet ALKORPLAN. The two-storey part of the roof is again dealt with a flat roof, consisting of ceiling panels and concrete catchment slope of 2 %, the roofing sheet ALKORPLAN. External walls are designed sandwich panels KINGSPAN. Walls and ceilings are dealt with plasterboard. The floors are made of linoleum and ceramic tiles. The building is equipped with aluminum windows, interior doors are made of wood. Outdoor and entrance doors are made from aluminum. This thesis addresses the implementation of technology, organization of construction, time demands, costs to implement the object, control over the implementation – KZP, coordination situation, and instructions for use of the building after its handover to the owner.
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Robot Interaction with Virtual Objects
Fisla, Jakub ; Španěl, Michal (referee) ; Materna, Zdeněk (advisor)
The goal of this bachelor's thesis was to create an aplication for robotic operating system ROS, adding virtual objects to data provided by the robot sensors. The theoretical part analyses the simulation techniques which combine real measured data with virtually generated data and explore equipment for data reading. The thesis designs a structure of feasible solution the application with respect to ROS platform and describes the application implementation. Finally, the focus is on testing of the application and thought about feasible extension this solution.
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Availability of sports facilities and sports equipment in municipal elementary schools in region of Tabor
NÁPRSTEK, Radek
My Bachelor´s thesis is focused on mapping of all sports halls, gyms and other covered and opened sport facilities in municipalities of Tabor with up to 1000 inhabitants where elementary schools were founded. Other goal was to find out how effectively they are used, how equipped they are and what teachers and students think about current condition of these facilities. The thesis points out physical training and sports carried out in elementary schools. Data for the practical part of thesis was collected with use of assembled questionnaire and its dissemination in all concerned schools. The result of this research in region of Tabor was satisfactory except of elementary school in Stadlec where I recommend putting more stress on cooperation with villages in neighborhood for better financing in order to improve its condition or construction of new ones.
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Influence of Selected Factors on Students' Mathematical Literacy in Central European Countries : Secondary Analysis of PISA 2003 Data
Voňková, Hana ; Byčkovský, Petr (advisor) ; Půlpán, Zdeněk (referee) ; Boschek, Petr (referee)
In this work we investigate the impact of selected personal, family and school characteristics on the level of mathematical ability of fifteen year old pupils from 6 countries of the Central Europe (Czech Republic, Hungary, Germany, Poland, Austria and Slovakia) and from countries with excellent results in mathematics (Finland, Hong Kong and the Netherlands). Then we compare the impact of the factors in the individual countries. Much can be concluded from this analysis. The type of school attended by the pupil has a great impact. The maximal difference between type of schools can come up to 40 percentage points in some countries (CR, Hungary, Poland and Slovakia). We do not discuss this factor in Finland and Poland, where all fifteen year olds attend one type of school. The results in these countries are therefore determined differently. As for other basic characteristics of the school, the size matters in some countries (Hong Kong and the Netherlands) and has always a positive effect. The urbanization level of the place of the school (the size of the village or city) is also positively correlated with the mathematics result. Here the Netherlands and Germany form an exception. The status of the school (public vs. private), lack of well-educated teachers, equipment of the school and enthousiasm of the...
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SMV-2014-17: Metrology and Optimization of Parameters in Electronic Systems
Bartušek, Karel
The presented contract research comprised development and experimental investigation aimed at devising methods for the metrology and optimization of parameters in electronic systems designed at the Faculty of Electrical Engineering and Communication, Brno University of Technology (BUT). Within the first partial task, we proposed a metrology technique to measure the concentration of air ions within the range of between 50 and 100,000 ions/cm2; furthermore, a Gerdien tube prototype was fabricated, and the electronics of a ionmeter developed by BUT were calibrated in various environments. The result of the second partial task consisted in the actual design and fabrication of a high-frequency coil system exhibiting a maximum homogeneity; this system was then experimentally verified on a 4.7 T MR tomograph and compared with probes equipped with saddle and slotted-tube coils. Probe tuning mechanisms were also included in the design.
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Construction Technology Project Medical Rescue station in Brno
Šmeidler, Jakub ; Kopecký, Lukáš (referee) ; Diaz, Yvetta (advisor)
The thesis is focused on building and technological project of medical rescue station on the street Kamenice in Brno. The building and technological project includes technology report, study the implementation of major technological stages, coordination situation buildings with wider relationships roadways, object-oriented time and financial plan ,construction project site equipment, design of building machines and mechanisms, the timetable of the main building structure, balance resources, technological note for design of the outer building cladding, inspection and test plan for the exterior cladding of the building, environmental and safety risks, the draft contract for work and itemized budget.
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Administrative building Brno, Civil technical project
Sokola, Jiří ; Hrůza,, Jaroslav (referee) ; Kovářová, Barbora (advisor)
Thesis I worked on a project basis provided the building permit for an office complex of two identical fourth storey buildings which from the first storey intersects the inner atrium. The buildings are located within the CTZone Brno in the street Masna. The buildings are designed so that the ground floor is a garage for cars and retail space for rent and above-ground floors are reserved for office space lease. Objects are based on a floating pile conducted by the CFA, which builds prefabricated concrete skeleton. The cladding is formed by a combined system of aluminum windows, masonry face and sheet plotted on a system of stainless steel brackets. Roofing of buildings is done running flat roofs, the roofing of the atrium serves as a walkable roof. The garage is designed bearing slab plate fitted topping for added durability. Internal Partition Walls and walls are made of aerated concrete blocks. Thesis deals with construction technological preparations for the construction and contains a technical report, coordinating the situation buildings with wider relationships routes, time and financial plan, study the implementation of the main stages, the project site equipment, design tools, technological regulation, inspection and test plan, itemized budget, comparing two designs rough superstructure and appropriate drawings.
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