Submitted by Jaqueline Silva (jtas29@gmail.com) on 2016-09-13T17:53:11Z No. of bitstreams: 2 Dissertação - Thyago Gumeratto Pires - 2016.pdf: 3317577 bytes, checksum: c905ac50dff6e34d77078f57380def44 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) / Approved for entry into archive by Jaqueline Silva (jtas29@gmail.com) on 2016-09-13T17:53:23Z (GMT) No. of bitstreams: 2 Dissertação - Thyago Gumeratto Pires - 2016.pdf: 3317577 bytes, checksum: c905ac50dff6e34d77078f57380def44 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) / Made available in DSpace on 2016-09-13T17:53:23Z (GMT). No. of bitstreams: 2 Dissertação - Thyago Gumeratto Pires - 2016.pdf: 3317577 bytes, checksum: c905ac50dff6e34d77078f57380def44 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Previous issue date: 2016-03-28 / This work presents the methodology for the calculation of the ground resistance, the ground potential rise, the surface potential, the touch voltage and step voltage in grounding grids with any geometry and buried at any depth within strati ed soil in two layers. The values of potential, touch voltage and step voltage are obtained at any point over the grid. The proposed equation uses the images and the average potential methods. The main feature of this modeling in relation to the other methods is the possibility of calculation of grids containing electrodes positioned at any distance and at any angle. The results obtained with the proposed methodology are presented and discussed. / Este trabalho apresenta metodologia para o c alculo da resist^encia de terra, da eleva c~ao do potencial da malha, do potencial na superf cie do solo, da tens~ao de toque e da tens~ao de passo em malhas de aterramento com qualquer geometria e posicionada a qualquer profundidade em solos estrati cados em duas camadas. Os valores do potencial e das tens~oes de toque e de passo s~ao obtidos em qualquer ponto sobre a malha. O equacionamento proposto utiliza os m etodos das imagens e do potencial m edio. A principal caracter stica desta modelagem em rela c~ao as demais e a possibilidade do c alculo de malhas contendo eletrodos posicionados a qualquer dist^ ancia e em qualquer ^angulo. Os resultados obtidos com a metodologia proposta s~ao apresentados e discutidos.

Submitted by Erika Demachki (erikademachki@gmail.com) on 2016-10-17T18:54:20Z No. of bitstreams: 2 Dissertação - Luciano Eduardo Braga dos Santos - 2016.pdf: 4527753 bytes, checksum: 8db193f1cca4949ecdcfe2e93d9399f2 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) / Approved for entry into archive by Erika Demachki (erikademachki@gmail.com) on 2016-10-18T17:16:29Z (GMT) No. of bitstreams: 2 Dissertação - Luciano Eduardo Braga dos Santos - 2016.pdf: 4527753 bytes, checksum: 8db193f1cca4949ecdcfe2e93d9399f2 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) / Made available in DSpace on 2016-10-18T17:16:29Z (GMT). No. of bitstreams: 2 Dissertação - Luciano Eduardo Braga dos Santos - 2016.pdf: 4527753 bytes, checksum: 8db193f1cca4949ecdcfe2e93d9399f2 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Previous issue date: 2016-06-17 / Fundação de Amparo à Pesquisa do Estado de Goiás - FAPEG / This work prop oses numerical metho d of simulation and optimization of waiting time in queues in hospital emergency. The case study is carried out in private hospital in the city of Goiania, Goias/Brazil. It is used to mo del discrete event systems as computational simulator and two optimization heuristics: the Brute Force algorithm and Genetic Algorithm. The optimization results are compared with the directives found in Resolution CFM 2077/2014, in an attempt to adapt the system to this resolution. With the results, it is observed that the simulation metho d and optimization metho ds are efficient to minimize queues at hospital emergency system. / Este trabalho prop˜oe m´eto do num´erico de simula¸c˜ao e otimiza¸c˜ao do temp o de esp era nas filas da emergˆencia hospitalar. O estudo de caso ´e realizado em hospital da rede particular, do munic´ıpio de Goiˆania. Utiliza-se a mo delagem de sistemas a eventos discretos como simulador computacional e dois m´eto dos heur´ısticos de otimiza¸c˜ao: o Algoritmo de For¸ca Bruta e o Algoritmo Gen´etico. Os resultados da otimiza¸c˜ao s˜ao comparados com as diretivas encontradas na Resolu¸c˜ao CFM no 2077/2014, na tentativa de adequar o sistema a esta resolu¸c˜ao. De posse dos resultados obtidos, observa-se que o m´etodo de simula¸c˜ao e os m´etodos de otimiza¸c˜ao s˜ao eficientes para minimiza¸c˜ao de filas em sistema de emergˆencia hospitalar.