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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.
1

Teorie deliberativní demokracie a demarchie jako alternativy demokratických voleb / Theory of deliberative democracy and demarchy as alternatives to democratic elections

Buryšová, Jana January 2015 (has links)
This thesis critically analyzes the concepts of deliberative democracy and demarchy. Both theories are described from many different viewpoints, including criticisms aimed at elections in democratic political systems, the issue of legitimacy and representativeness. The analysis of the theory of deliberative democracy is based on the works of Bernard Manin, John Dryzek, Joshua Cohen etc. The analysis of the theory of demarchy is based on the works of John Burnheim. Both theoretical concepts are also confronted with criticisms aimed at their theoretical and practical imperfections. The thesis also deals with examples and possibilities of practical use of some elements from both theories. Finally, this thesis attempts to answer the question of whether both analyzed concepts could be satisfactory alternatives to representative democracy.
2

Análise dinâmica de placas delgadas utilizando elementos finitos triangulares e retangulares

Waidemam, Leandro [UNESP] 23 January 2004 (has links) (PDF)
Made available in DSpace on 2014-06-11T19:25:21Z (GMT). No. of bitstreams: 0 Previous issue date: 2004-01-23Bitstream added on 2014-06-13T19:53:02Z : No. of bitstreams: 1 waidemam_l_me_ilha.pdf: 2247815 bytes, checksum: aab885504632d6169da23c5ac9796141 (MD5) / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) / Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) / Este trabalho tem como objetivo principal analisar o comportamento dinâmico de estruturas laminares planas com carregamento perpendicular ao plano médio, em particular as placas delgadas, utilizando-se, para isso, a teoria clássica de flexão de placas e a discretização estrutural feita com os elementos finitos triangulares e retangulares trabalhando em conjunto e em separado. Na dedução das matrizes de rigidez e de massas dos elementos finitos em questão utiliza-se a formulação com parâmetros generalizados e com coordenadas homogêneas, cujas funções aproximadoras contêm nove e doze monômios, respectivamente, extraídos do polinômio algébrico cúbico em “x” e “y”. Para a consideração do amortecimento utiliza-se o Método de Rayleigh e para a integração numérica ao longo do tempo utiliza-se o Método de Newmark, via algoritmo previsor / corretor. Ao final deste são elaborados vários exemplos elucidativos visando uma análise quantitativa e qualitativa dos resultados obtidos. / In this work the dynamic behavior of plane laminate structures, with load applied perpendicularly to the middle plan, has been analyzed. The classic theory of bending plates and structural subdivision - done with triangular and rectangular finite elements working together as well as in separate – are used to study thin plates. The formulation employing generalized parameters and homogeneous coordinates, using approximating functions containing nine and twelve terms starting from the cubic algebraic polynomial in Cartesian coordinates x and y, is used to obtain the stiffness and mass matrices for the triangular and rectangular finite element, respectively. The Rayleigh Method is used to take into account the structural dumping while the Newmark Method is used to perform the numeric integration in the time, by means of predictor / corrector scheme. Additionally, several elucidating examples are elaborated in order to analyze the final results.
3

Análise dinâmica de placas delgadas utilizando elementos finitos triangulares e retangulares /

Waidemam, Leandro. January 2004 (has links)
Orientador: Rogério de Oliveira Rodrigues / Banca: Wilson Sergio Venturini / Banca: Mônica Pinto Barbosa / Resumo: Este trabalho tem como objetivo principal analisar o comportamento dinâmico de estruturas laminares planas com carregamento perpendicular ao plano médio, em particular as placas delgadas, utilizando-se, para isso, a teoria clássica de flexão de placas e a discretização estrutural feita com os elementos finitos triangulares e retangulares trabalhando em conjunto e em separado. Na dedução das matrizes de rigidez e de massas dos elementos finitos em questão utiliza-se a formulação com parâmetros generalizados e com coordenadas homogêneas, cujas funções aproximadoras contêm nove e doze monômios, respectivamente, extraídos do polinômio algébrico cúbico em "x" e "y". Para a consideração do amortecimento utiliza-se o Método de Rayleigh e para a integração numérica ao longo do tempo utiliza-se o Método de Newmark, via algoritmo previsor / corretor. Ao final deste são elaborados vários exemplos elucidativos visando uma análise quantitativa e qualitativa dos resultados obtidos. / Abstract: In this work the dynamic behavior of plane laminate structures, with load applied perpendicularly to the middle plan, has been analyzed. The classic theory of bending plates and structural subdivision - done with triangular and rectangular finite elements working together as well as in separate - are used to study thin plates. The formulation employing generalized parameters and homogeneous coordinates, using approximating functions containing nine and twelve terms starting from the cubic algebraic polynomial in Cartesian coordinates "x" and "y", is used to obtain the stiffness and mass matrices for the triangular and rectangular finite element, respectively. The Rayleigh Method is used to take into account the structural dumping while the Newmark Method is used to perform the numeric integration in the time, by means of predictor / corrector scheme. Additionally, several elucidating examples are elaborated in order to analyze the final results. / Mestre

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