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Modelling of closed space acousticsby the beam method
Ryšavý, Marek ; Orlovský, Kristián (referee) ; Trzos, Michal (advisor)
The bachelor thesis describes the modeling of room acoustics using the ray tracing method. The first chapter deals with a general description of the basic properties of acoustic environment (wave acoustics, statistical acoustics and geometric acoustics). Then are described methods of calculating geometrical acoustics (image-source method, ray-tracing method and beam-tracing method). In the second chapter of this work is described in detail ray tracing methods and algorithm for calculate room acoustic using this method.
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Optimization of four-bar mechanism geometry for the predescribed trajectory
Korytár, Lukáš ; Sova, Václav (referee) ; Grepl, Robert (advisor)
This thesis deals with the optimization of arm lengths of four-bar RRRR mechanism using matrix kinematics. It compares and describes the methods, which are available in MATLAB software environment for this purpose. Consequently, an optimization algorithm using fmincon function is designed for which Monte-Carlo algorithm performs the first estimates. Elementary requirements for the proposed algorithm are devised in order to accurately duplicate the predescribed trajectory.
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Semiclassical Monte-Carlo method in three particle scattering.
Trnka, Jiří ; Čížek, Martin (advisor) ; Houfek, Karel (referee)
The thesis discusses semiclassical Monte carlo method in three particle scattering. The basic procedure for calculating cross sections of reactions of a single atom with a diatomic molecule is summarized. For the purpose of testing the method, the cross sections of exchange reactions in system H2+H represented by Karplus Porter potential energy surface were calculated. The thesis also deals with chaotic behaviour of threeparticle scattering in a simple model system of coupled Morse potentials. The model system was expanded by incorporating the process of associative detachement, which was studied in combination with long chaotic trajectories. Powered by TCPDF (www.tcpdf.org)
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Modelling of closed space acousticsby the beam method
Ryšavý, Marek ; Orlovský, Kristián (referee) ; Trzos, Michal (advisor)
The bachelor thesis describes the modeling of room acoustics using the ray tracing method. The first chapter deals with a general description of the basic properties of acoustic environment (wave acoustics, statistical acoustics and geometric acoustics). Then are described methods of calculating geometrical acoustics (image-source method, ray-tracing method and beam-tracing method). In the second chapter of this work is described in detail ray tracing methods and algorithm for calculate room acoustic using this method.
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Optimization of four-bar mechanism geometry for the predescribed trajectory
Korytár, Lukáš ; Sova, Václav (referee) ; Grepl, Robert (advisor)
This thesis deals with the optimization of arm lengths of four-bar RRRR mechanism using matrix kinematics. It compares and describes the methods, which are available in MATLAB software environment for this purpose. Consequently, an optimization algorithm using fmincon function is designed for which Monte-Carlo algorithm performs the first estimates. Elementary requirements for the proposed algorithm are devised in order to accurately duplicate the predescribed trajectory.
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