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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
61

Simulace dvojrozměrného toku kolem překážek za použití "lattice-gas" celulárních automatů / Simulace dvojrozměrného toku kolem překážek za použití "lattice-gas" celulárních automatů

Tomášik, Miroslav January 2017 (has links)
Cellular automata constitues original computational methods, that found its application in many disciplines. The special class of cellular automata, so called lattice gas automata were succesfull in dealing with many challenges in hydrodynamic simulations, and they bootstrap one of the most perspective CFD methods, the Lattice Boltzmann models. In the theoretical part, we follow the evolution of the lattice gas automata, explore the theory behind them, and from their microdynamics, we derive the macroscopic equations. In the practical part, we implemented two distincet types of LGCA, the pair-interaction automata and FCHC. We applied them on the flow around obstacles of various shapes. The scientifically most relevant part concerns statistical properties of the turbulent flow simmulated by LGCA, but requires further research to conclude it. Powered by TCPDF (www.tcpdf.org)
62

Simulace dvojrozměrného toku kolem překážek za použití "lattice-gas" celulárních automatů / Simulation of two-dimensional flow past obstacles using lattice-gas cellular automata

Tomášik, Miroslav January 2017 (has links)
Cellular automata constitutes a unique approach to the modeling of complex systems. The major phase of their development in continuum mechanics came in the late 80s, but the closer inspection of their macroscopic limit revealed that it does not accurately correspond to hydrodynamic equations. Besides the Lattice-Boltzmann model, various other approaches to improve LGCA have emerged. The main focus of our research is on the Pair-interaction cellular automaton. In this thesis, we propose the non-deterministic variant of this automaton, and we compare it with its predecessor on the simulations of the "exploding cube", Taylor- Green vortex and fully developed turbulence. The results for the non-deterministic automaton seem quiet reasonable, but derivation of the hydrodynamic equations is necessary to conclude in what extent it solves the problem with anisotropic viscosity.
63

La construcción del candidato. Análisis de la imagen de Verónika Mendoza en los encuadres periodísticos de El Comercio y La República y el contraste con la estrategia de campaña del Frente Amplio en las elecciones presidenciales 2016

Ayala Richter, Verónica Pamela 10 June 2017 (has links)
Esta investigación contrasta la estrategia de campaña que se elaboró en torno a la imagen de Verónika Mendoza, candidata del Frente Amplio a las elecciones presidenciales peruanas del 2016, con los contenidos periodísticos que elaboraron en torno a ella dos de los principales diarios peruanos, El Comercio y La República, con el objetivo de determinar hasta qué punto se logró plasmar esta estrategia en ambos diarios. Este estudio tiene un carácter empírico descriptivo y utiliza las entrevistas a profundidad a los jefes del equipo de campaña del Frente Amplio para establecer los atributos que quisieron resaltar de Mendoza; así como el análisis de contenido a la luz de la teoría del encuadre o framing en los medios seleccionados. El análisis muestra que se logró posicionar estas cualidades de forma parcial en el diario La República y contribuyó a atenuar la posición contraria de El Comercio a Mendoza, a través de una mayor presencia de notas de carácter positivo que balanceó el contenido adverso hacía la candidata

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