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Timepix Detector in Space Applications and Radiation Belt Dynamics Observed at Low Altitudes
Gohl, Stefan ; Němec, František (advisor) ; Taubenschuss, Ulrich (referee) ; Bourdarie, Sébastien (referee)
Radiace v kosmickém prostředí je škodlivá jak pro družice, tak pro zdraví astronautů. Pro měření její úrovně na družicích se využívají radiační monitory, které optimálně s malými nároky poskytují vysokou kvalitu dat. Dále je studována komplexní odezva mag- netosférického systému na události kosmického počasí. V roce 2013 byl na palubě družice Proba-V vypuštěn radiační monitor SATRAM (Space Application of Timepix Radia- tion Monitor). První část práce demonstruje možnosti tohoto jednovrstvého Timepix detektoru. Jsou prezentovány metody pro rozlišení elektronů, protonů a těžších částic a vyhodnoceny příslušné toky energetických částic. Tyto jsou srovnány s toky měřenými přístrojem EPT (Energetic Particle Telescope) na palubě stejné družice a je ukázána do- brá shoda. Druhá část práce se zabývá studiem variací toků energetických částic v době geomagnetických bouří a průchodu meziplanetárních rázových vln. Je studováno pět výz- načných geomagnetických bouří (Dst < −100 nT) s využitím přístroje IDP (Instrument for the Detection of Particle) na palubě družice DEMETER. Analýza uvažuje odpovída- jící parametry slunečního větru a demonstruje dva odlišné typy geomagnetických bouří. Data z přístroje EPT jsou dále využita ke studiu změn toků energetických elektronů v době průchodu meziplanetárních rázových vln. Je...
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The use of renewable for multi-purpose building
Němec, Filip ; Horák, Petr (referee) ; Formánek, Marian (advisor)
The goal of my final thesis is to get to know the problematic of renewable energy sources and it’s use. I have divided my thesis into three parts. First part is theoretical and it is about renewable heat sources. It goes deeper into use the energy of sun and heat pumps. Second part is proposal of heating system and the preparation of hot water. It includes the calculation of heat transfer coefficient, thermal losses of individual rooms and the proposal radiators and all the sub-elements. Within the study of possible options for renewable sources, it suggests three variants of the heat source and then the chosen one for further processing. The last, third part contains technical report and construction documentation.
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Optical cableless transmission
Němec, Filip ; Křepelka, Václav (referee) ; Filka, Miloslav (advisor)
This diploma thesis first handles the general issues concerning free space optics in the~atmosphere. The aim is to design and implementation of optical wireless equipment, which would serve in the laboratories of optical networks. Ronja was used as the basis for a~wireless link, which is already widespread in the world. Students will work with the device, which they may come into contact in the future. It consists several separate modules: transmitter, receiver and inteface. Each module have a separate chapter describing the~functional blocks and circuit realization. Ronja was adjusted for the needs of~laboratory tasks, where additional voltmeters measures received signal strength (RSSI) at~both ends of the link. Measuring device provides adjustment of power the transmitting LED via~computer, measures and sends RSSI values to a PC via~USB or RS232, turn off Ronja with computer. For targeting the pipes of Ronja was developed the mechanical design. In the last part of thesis the device was undergone a series of tests.
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Universal diagnostic device for accumulators
Němec, Filip ; Lattenberg, Ivo (referee) ; Balík, Miroslav (advisor)
Firstly, this bachelor thesis handles the issues concerning NiCD and NiMh batteries and methods used when charging and discharging. Next segment of the document deals with designing and the actual realization of a device, which can work with these batteries and perform variable tasks,such as charging and discharging battery with adjustable current value, measuring temperature of the battery. Sending data via the serial port,it also implements charging and discharging curve. Device can be operated intuitively using buttons and display. The Device is realized via microcontroller ATMEL.
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Path Planning in 3D Space
Němec, František ; Samek, Jan (referee) ; Rozman, Jaroslav (advisor)
This paper deals with the problem of object path planning in 3D space. The goal is to create program which allows users to create a scene used for path planning, perform the planning and finally visualize path in the scene. Work is focused on probabilistic algorithms that are described in the theoretical part. The practical part describes the design and implementation of application. Finally, several experiments are performed to compare the performance of different algorithms and demonstrate the functionality of the program.
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Multifunctional Building
Němec, Filip ; Sláma, Ludvík (referee) ; Mohelníková, Jitka (advisor)
The subject of this diploma thesis is the design and elaboration of project documentation for the implementation of a new multifunctional building. The building will be located in the city of Brno in the district of Ko-márov. The new building will be divided into three separate functional units - underground garage, office space with hairdresser and residential part. Each apartment is equipped with a separate balcony. It is a four-storey, partly basement multifunctional house with a flat roof, based on reinfor-ced concrete slab. The construction system is designed wall. The basement part of the buil-ding is built from concrete molded blocks of permanent shuttering, the above-ground part from ceramic blocks of the Porotherm system. The ceiling structure consists of reinforced concrete monolithic slabs. The windows will be plastic. The thesis is designed in accordance with applicable laws, ordinances and standards.
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Customer Satisfaction
Němec, Filip ; Sehnal, Stanislav (referee) ; Schüller, David (advisor)
The aim of this master thesis is analysing customer satisfaction of restaurant company by Porters analysis, SWOT analysis, marketing mix analysis, cluster and regression analysis and contingency test and draft measures which will lead to improvement of her level. The thesis consists of three parts - theoretical, analytical and proposal. The first part describes theoretical resources in area of customer satisfaction. For example, how satisfaction is measured and how the customer behaves. The aim of practical part is to evaluate the customer satisfaction in the choosen restaurant and interpretation of calculated results. In the last part of this work, there are proposed new disposals in view of results of analysis, which will lead to improvement of total customer satisfaction of the restaurant.
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Public Transport Simulation in Brno
Němec, František ; Král, Jiří (referee) ; Rozman, Jaroslav (advisor)
The goal of this thesis is to design and implement public transport simulator in Brno. Information about the departure times and routes of each public transport lines are extracted from online traffic timetables. Data from which traffic network is generated are obtained from OpenStreetMap project. The thesis contains a description of the basic approaches to create traffic simulators, especially the description of the microscopic approach on which is this simulator based. The second part of thesis includes the design and implementation of simulator, whose main components are ways of traffic management, representation of transport networks and the generation of OpenStreetMap data.
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The Evaluation of the Financial Situation’s Company
Němec, Filip ; Fojtů, Kateřina (referee) ; Pavláková Dočekalová, Marie (advisor)
The aim of this bachelor thesis is analysing financial situation of choosen company by methods of financial analysis and draft measures which will lead to improvement of the financial health of the company. The thesis consists of three parts - theoretical, practical and proposal. The first part describes theoretical resources in area of financial analysis. For example, what it deals with and which methods it contains. The aim of practical part is to evaluate the financial indicators in the choosen company and interpretation of calculated results. In the last part of this work, there are proposed new disposals in view of results of financial analysis, which will lead to improvement of financial situation of the company.
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Využití laserového skenování k dokumentaci současného stavu dřevěné zvonice
Němec, František
This bachelor thesis deals with the use of laser scanning technology to document historical buildings. Its aim is to create a 3D model, floor plans and vertical sections for the needs of the National Heritage Institute and the township of Knínice. The thesis describes the procedure for using laser scanning, all the necessary tasks that must be performed before the actual scanning, as well as the method of subsequent processing of the scanned data and creating the model in the software chosen for this purpose. The result of the work is a digital 3D model of a wooden belfry, floor plans and vertical sections showing the position of individual elements in the structure and a technical description of the object. These results can be used for archiving this historical cultural monument, its possible future reconstruction or even restoration.
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