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Representation Techniques for Evolutionary Design of Cellular Automata
Kovács, Martin ; Drábek, Vladimír (referee) ; Bidlo, Michal (advisor)
The aim of this thesis is to experimentally evaluate the performance of several distinct representations of transition functions for cellular automata. Cellular automata have many potential applications for simulating various phenomena (e.g. natural processes, physical systems, etc.). Parallel computation of cellular automata is based on local cell interactions. Such computation, however, may prove difficult to program the CA, which is the reason for applying evolutionary techniques for the design of cellular automata in many cases. Evolutionary algorithms, based on Darwin's theory of evolution, have been used to find human-competitive solutions to many problems. In order to perform the evolutionary design of cellular automata, special encodings of the candidate solutions are often necessary. For this purpose the performance testing of various representations of the transition functions will be investigated. In particular, table representation, conditionally matching rules, and genetic programming will be treated. The problem of square calculations in cellular automata will be considered as a case study.
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Mathematical model of test facility for study critical heat flux
Bartůněk, David ; Šnajdárek, Ladislav (referee) ; Suk, Ladislav (advisor)
In the first part, the bachelor thesis is focused on the description of test facility used for studying critical heat flux and for visualizing two-phase flow in the vertical canal. In the next part, there are the basic mathematical methods that are used for solving transient behavior of real devices. The last practical part of the thesis deals with applying of preceding methods to the preheater as part of the experimental loop and creating mathematical model of this device.
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Hybrid renderer
Goliaš, Matúš ; Pelikán, Josef (advisor) ; Horáček, Jan (referee)
Title: Hybrid renderer Author: Matúš Goliaš Department: Department of Software and Computer Science Education Supervisor: RNDr. Josef Pelikán, KSVI Abstract: In medical applications, there are often used both volume data and objects defined by their surface. However, rendering these two types of data together is rather dif- ficult. This thesis provides the description of ray marching algorithm for volume rendering. We base the algorithm on the emission-absorption model of light trans- fer through a gaseous material. Moreover, we discuss the problems of adding meshes to the volume with respect to the algorithm. Next, we propose an ex- tension of ray marching which takes all meshes into account and renders them with the volume correctly. In addition, we compare the individual approaches for solving steps of the algorithm. Finally, we implement our solution in an ap- plication for volume viewing. We develop this renderer using OpenGL and we discuss our options of implementation. Furthermore, we extend our application by allowing the camera inside the volume, clipping the scene and interactive edit- ing of transfer functions which define the colour representation of volume data. Subsequently, we describe every feature and discuss its possible implementations. Keywords: volume data, ray marching, translucent...
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Framework for designing transfer function editors
Baron, Miroslav ; Krajíček, Václav (advisor) ; Horáček, Jan (referee)
There are many ways to define a transfer function for direct volume rendering (DVR). This thesis presents an universal system of transfer function editors which works also as framework for creating new types of these editors. Unified interface with proposed transfer function data structure gives us independency on used graphic engine and the possibility to work with more different editors at the same time. We can implement new technique for designing transfer function without the need of dealing with the graphic engine and we can add our new editor to this existing system in few well defined steps. We have also designed some interesting ways to define transfer function and we discuss their usefulness here.
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Representation Techniques for Evolutionary Design of Cellular Automata
Kovács, Martin ; Drábek, Vladimír (referee) ; Bidlo, Michal (advisor)
The aim of this thesis is to experimentally evaluate the performance of several distinct representations of transition functions for cellular automata. Cellular automata have many potential applications for simulating various phenomena (e.g. natural processes, physical systems, etc.). Parallel computation of cellular automata is based on local cell interactions. Such computation, however, may prove difficult to program the CA, which is the reason for applying evolutionary techniques for the design of cellular automata in many cases. Evolutionary algorithms, based on Darwin's theory of evolution, have been used to find human-competitive solutions to many problems. In order to perform the evolutionary design of cellular automata, special encodings of the candidate solutions are often necessary. For this purpose the performance testing of various representations of the transition functions will be investigated. In particular, table representation, conditionally matching rules, and genetic programming will be treated. The problem of square calculations in cellular automata will be considered as a case study.
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Mathematical model of test facility for study critical heat flux
Bartůněk, David ; Šnajdárek, Ladislav (referee) ; Suk, Ladislav (advisor)
In the first part, the bachelor thesis is focused on the description of test facility used for studying critical heat flux and for visualizing two-phase flow in the vertical canal. In the next part, there are the basic mathematical methods that are used for solving transient behavior of real devices. The last practical part of the thesis deals with applying of preceding methods to the preheater as part of the experimental loop and creating mathematical model of this device.
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