National Repository of Grey Literature 21 records found  1 - 10nextend  jump to record: Search took 0.00 seconds. 
Computer modeling of laser beam
Mittner, Ondřej ; Wilfert, Otakar (referee) ; Raida, Zbyněk (advisor)
This bachelor’s thesis theoretically describes Gaussian beam, its characteristics and its passing through optical elements. The main attention is focused on creating of computer models of Gaussian beam in COMSOL Multiphysics application, detailed description of these models, presentation of achieved results and comparing these results with theoretic presumptions.
Modelling of the noise emission in computers
Nešetřil, Čeněk ; Mišun, Vojtěch (referee) ; Pellant, Karel (advisor)
Elaboration of problem of the noise causes inside personal computer. Discussion about possibilities of decrease the spread of noise on the base of right choise of noise source and apllied anti-noise leyers.
Design and construction of small windpower
Novák, Kamil ; Svoboda, Pavel (referee) ; Prokeš, František (advisor)
This thesis describes the design and construction of small domestic plants. It describes device with three-blade rotor and rated power 1 kW. It presents basic information and rules for the structure and gives an overview of the different types of design. The work is intended as a basic source of information for future implementation. The work includes the assembly drawing.
Application of modelling for noise control of computers
Nešetřil, Čeněk ; Mišun, Vojtěch (referee) ; Pellant, Karel (advisor)
The aim of this thesis is to discuss the diffusion of noise inside the personal computer and possibilities of decrease it. The results of this thesis are presented in this work. I used the Ansys FEM program for simulation of the noise diffusion and effectivity of anti-noise equipment.
Design and Optimization of Electromagnetic Band Gap Structures
Kovács, Peter ; Škvor,, Zbyněk (referee) ; Dědková, Jarmila (referee) ; Lukeš, Zbyněk (advisor)
Dizertační práce pojednává o návrhu a optimalizaci periodických struktur s elektromagnetickým zádržným pásmem (EBG – electromagnetic band gap) pro potlačení povrchových vln šířících se na elektricky tlustých dielektrických substrátech. Nepředvídatelné chování elektromagnetických vlastností těchto struktur v závislosti na parametrech elementární buňky činí jejích syntézi značně komplikovanou. Bez patřičného postupu je návrh EBG struktur metodou pokusu a omylu. V první části práce jsou shrnuty základní poznatky o šíření elektromagnetických vln v tzv. metamateriálech. Následně je diskutován správný způsob výpočtu disperzního diagramu ve vybraných komerčních programech. Jádrem dizertace je automatizovaný návrh a optimalizace EBG struktur využitím různých globálních optimalizačních algoritmů. Praktický význam vypracované metodiky je předveden na návrhových příkladech periodických struktur s redukovanými rozměry, dvoupásmovými EBG vlastnostmi, simultánním EBG a AMC (artificial magnetic conductor – umělý magnetický vodič) chováním a tzv. superstrátu. Poslední kapitola je věnována experimentálnímu ověření počítačových modelů.
Foundry in technical documentacion
Fišer, Petr ; Svoboda, Pavel (referee) ; Prokeš, František (advisor)
This bachelor’s thesis deals with design documentation of foundry. It present‘s the basic rules of making design documentation, listing of used types of documentation and all their formal belongings. It’s foremost determined to complete the basic knowledge of first year students VUT FSI with assigned project Foundry. Set of new problems is also part of this thesis.
Loop antennas for medical applications
Zejda, Luboš ; Puskely, Jan (referee) ; Raida, Zbyněk (advisor)
This thesis is focused on the design of loop antennas for medical applications. The main goal of this thesis is to verify the functionality of published designs of broadband loop antennas, and to compare them with each other. Compared antennas are modified for available substrate and a specified frequency. Antenna with best parameters is selected, manufactured and its characteristics are compared with simulations. Design and simulation software used is CST Microwave Studio.
Using 3D Computer Graphics for Medical Applications
Javůrek, Jan ; Herout, Adam (referee) ; Kršek, Přemysl (advisor)
This thesis describes problems 3D computer graphic modeling and design graphic system for use in medicine. Design graphic system was successfully implement for concrete application in stomatology.
Computer modelling of the deformation of solid body in the program COMSOL Multiphysics
NOVOTNÝ, Miroslav
Bachelor thesis deals modeling of deformation of the press on paper briquettes. Modeling is performed in COMSOL Multiphysics. The theoretical part are briefly deals with the deformation. The whole construction of the press to paper briquettes is unique. In the annex bachelor thesis are placed the drawings.
Computer modeling of plasma-material interactions: particle flow
ČERNÁ, Veronika
Bachelor thesis deals with computer modeling of the interaction of plasma with the surface of the solid material, primarily by determining the flow of electrically charged particles to the surface. The main emphasis lays on study of this phenomenon using COMSOL Multiphysics. After introductory chapter, in which is briefly characterized the fourth state of matter plasma, there is a chapter introducing the basic techniques of computer modeling. The third chapter presents software for technical calculations, the use of which is practically demonstrated in the next chapter by the example of the continuous modeling. The last part of the thesis forms a sample output of the model. Conclusion is the evaluation of the whole bachelor thesis and the possibilities of its further use.

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