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National Repository of Grey Literature 3 records found  Search took 0.01 seconds. 
A Brief Design of Optical Resonators
 Hubík, Daniel ; Nešpor, Dušan (referee) ; Kadlec, Radim (advisor)
This bachelor thesis is focused on analysis of split-ring resonators in THz region. Simulations were made by finite elements method and by finite-difference time-domain method. At first we created a resonating structure that works in GHz region. Then we were observing a dependence of movement of resonant frequency on the size of resonator. In the final chapter we assigned frequency dependent values of permitivity to such structure. As the result we simulated working resonator at frequency 500THz. All simulations have been made in program HFSS ANSYS and Lumerical FDTD Solutions.
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A Brief Design of Optical Resonators
 Hubík, Daniel ; Nešpor, Dušan (referee) ; Kadlec, Radim (advisor)
This bachelor thesis is focused on analysis of split-ring resonators in THz region. Simulations were made by finite elements method and by finite-difference time-domain method. At first we created a resonating structure that works in GHz region. Then we were observing a dependence of movement of resonant frequency on the size of resonator. In the final chapter we assigned frequency dependent values of permitivity to such structure. As the result we simulated working resonator at frequency 500THz. All simulations have been made in program HFSS ANSYS and Lumerical FDTD Solutions.
Detailed record
Numerical modelling of pollution dispersion in complex terrain
 Bodnár, T. ; Kozel, K. ; Fraunié, P. ; Jaňour, Zbyněk
Amathematical model for prediction of flow and pollution dispersion in ABL is developed. A numerical method is proposed for the solution of the governing system of PDE. The method is based on finite-difference semi-implicit discretization scheme. structured boundary-fitted mesh. Some results od simple numerical tests are presented and discussed.
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