Random Numbers form the heart and soul of a discrete-event simulation system. There are few situations where the actions of the entities in the process being simulated can be completely predicted in advance. The real world processes are more probabilistic than deterministic. Hence, such chances are represented in the system by using various statistical models, like random number generators. These random number generators can be used to represent a various number of factors, such as length of the queue. However, simulations have grown in size and are sometimes required to run on multiple machines, which share the various methods or events in the simulation among themselves. These Machines can be distributed across a LAN or even the internet. In such cases, to keep the validity of the simulation model, we need rollback-able random number generators. This thesis is an effort to develop such rollback able random number generators for the Synchronous Parallel Environment for Emulation and Discrete-Event Simulation (SPEEDES) environment developed by NASA. These rollback-able random number generators will also add several statistical distribution models to the already rich SPEEDES library.

Submitted by Franciele Moreira (francielemoreyra@gmail.com) on 2018-04-05T17:25:44Z No. of bitstreams: 2 Dissertação - João Fernandes da Silva Neto - 2017.pdf: 21655916 bytes, checksum: c2eaa441e43ed2fb96b81e3dbc28201d (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) / Approved for entry into archive by Luciana Ferreira (lucgeral@gmail.com) on 2018-04-06T12:14:54Z (GMT) No. of bitstreams: 2 Dissertação - João Fernandes da Silva Neto - 2017.pdf: 21655916 bytes, checksum: c2eaa441e43ed2fb96b81e3dbc28201d (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) / Made available in DSpace on 2018-04-06T12:14:54Z (GMT). No. of bitstreams: 2 Dissertação - João Fernandes da Silva Neto - 2017.pdf: 21655916 bytes, checksum: c2eaa441e43ed2fb96b81e3dbc28201d (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Previous issue date: 2017-12-19 / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES / This research had as scope to investigate the peculiarities of the elaboration and execution of the baixaria (bass lines) of seven-string guitar in the interpretation of the Choro by Rogério Caetano, aiming to identify how it interacted with the marked diversity that characterizes postmodernity and with the elements of the tradition, here represented by the work of Dino Sete Cordas and Raphael Rabelo, and, in this context, the innovations that he brought to the history of the genre in Brazil. Three works by Rogério Caetano – Amigos, Um chorinho em Cochabamba and Rogerinho no sete – as well as three recordings of the music Noites Cariocas – composed by Jacob do Bandolim – interpreted, respectively, by Rogério Caetano, Dino Sete Cordas, and Raphael Rabello, were selected for analysis, interpretation, and comparison. The methodological trajectory prioritized: bibliographical survey; documentary survey (musical scores); exploration of oral sources (semi- structured interviews), auditory and audio-visual sources; investment in the transcription of baixarias of choro music carried out by the researcher; analysis, interpretation and comparison of the baixarias performed by each of the three mentioned musicians. Finally, it was possible to consider that Rogério Caetano, despite all the mastery of the traditional elements (in the context of the baixaria of Choro), represented here by the work of Dino Sete Cordas and Raphael Rabello, used a lot of melodic material from other musical genres like the jazz, the blues, Latin American music, evidencing that it brought great innovations to the choro genre. We state that this musician achieved this when he established profound dialogues with the diversity characteristic of the postmodern scenario with which he interacted. In what it concerns to the seven-string guitar universe, still having in sight the other two mentioned musicians, he showed that he is able to represent a third school of the seven-string guitar in Brazil. / Essa pesquisa teve como escopo investigar as peculiaridades da elaboração e execução da baixaria do violão de sete cordas na interpretação do Choro de Rogério Caetano, visando identificar a forma como interagiu com a diversidade acentuada que caracteriza a pós- modernidade e com os elementos da tradição, aqui representada pelo trabalho de Dino Sete Cordas e Raphael Rabelo, e, nesse contexto, as inovações que trouxe para a histórica do gênero no país. Foram selecionadas para análise, interpretação e comparação, três obras de Rogério Caetano – Amigos, Um chorinho em Cochabamba e Rogerinho no sete – e três gravações da obra Noites Cariocas de Jacob do Bandolim, interpretadas, respectivamente, por Rogério Caetano, Dino Sete Cordas e Raphael Rabello. A trajetória metodológica priorizou: levantamento bibliográfico; levantamento documental (partituras); exploração de fontes orais (entrevistas semiestruturadas), auditivas e audiovisuais; investimento na transcrição de baixarias do choro realizada pelo pesquisador; análise, interpretação e comparação da interpretação das baixarias dos músicos em questão. Por fim, foi possível considerar que Rogério Caetano, apesar de todo o domínio dos elementos tradicionais (no âmbito da baixaria do Choro), aqui representados pelo trabalho de Dino Sete Cordas e Raphael Rabello, utilizou muito materiais melódicos oriundos de outros gêneros musicais, sobretudo o jazz, o blues, música latino-americana, evidenciando que trouxe grandes inovações para o gênero choro. Isto ao dialogar profundamente com a diversidade característica do cenário pós-moderno com o qual interagiu. Em relação ao universo violonístico de sete cordas, tendo em vista os dois outros músicos mencionados, mostrou que tem condições de representar uma terceira escola do violão de sete cordas no Brasil.