Made available in DSpace on 2014-12-17T14:54:55Z (GMT). No. of bitstreams: 1 FranciscaMSRL_TESE.pdf: 2808012 bytes, checksum: a7e097aeb64526d8b841387c288d8bf8 (MD5) Previous issue date: 2010-04-20 / Universidade Estadual do Rio Grande do Norte / In this research study, in which I discuss the discursive constitution of ethnic-racial identity of black male and female teachers, I understand that the process of identity formation of the subject covers both personal/family and social/professional areas. In it, I propose, in general terms, to analyze the discursive practices present in narratives of black male and female teachers when they look for their social insertion into different social contexts, identifying outbreaks of resistance that are present in their process of ethnicracial identities. The fundamental issue that permeates the survey investigates: how can black male and female teachers behave discursively in the construction of ethnicracial identities in multiple distinct contexts? The theoretical foundations that support this research work come from theoretical fields that complement each other; among them, French Discourse Analysis, Foucault s Theory and cultural studies. These, even with their singularities, are being interlaced by the conception that conceives language as social practice. Methodologically, I adopt an interpretative and qualitative paradigm to examine not only the linguistic repertoires that compose these teachers written narratives written but also the data that were generated by semi-structured interviews. The results show that the subjects, realizing contrary forces that interfere in their process of social inclusion, make use of acetic techniques to (re)signify the history of their lives / Nessa pesquisa em que discuto a constitui??o discursiva de identidades ?tnicorraciais de docentes negros e negras, parto da compreens?o de que o processo de forma??o identit?ria do sujeito abrange tanto a ?rea pessoal/familiar quanto ? social/profissional. Nela, proponho-me, a analisar as pr?ticas discursivas presentes em narrativas de quinze professores/as negros/as residentes nas cidades de Assu e Pend?ncias RN quando buscam sua inser??o em diversas inst?ncias sociais, identificando focos de resist?ncias que atravessam seu processo constitutivo de identidades ?tnicorraciais. A quest?o fundamental que perpassa a pesquisa investiga: Como ser? que professores/as negros/as se posicionam discursivamente na constru??o de identidades ?tnicorraciais nas diversas inst?ncias sociais? Os fundamentos que respaldam a pesquisa adv?m de campos te?ricos que se articulam, entre outros, a AD francesa, teoriza??es foucaultianas e os estudos culturais. Esses, mesmo com suas singularidades, est?o sendo entrela?ados pelo fio condutor que concebe a linguagem enquanto pr?tica social. Metodologicamente, adoto um paradigma qualitativo interpretativista para examinar n?o apenas os repert?rios lingu?sticos que comp?em narrativas escritas por docentes, mas tamb?m os dados gerados pelas entrevistas semiestruturadas. Os dados indiciam que os sujeitos colaboradores, ao perceberem as for?as contr?rias que atravessam seu processo de inser??o social, se utilizam de t?cnicas ac?ticas para (re) significarem suas hist?rias de vida

Made available in DSpace on 2014-12-17T14:55:08Z (GMT). No. of bitstreams: 1 JoseADA.pdf: 1177025 bytes, checksum: 7b60e9ae5f0d99d9f5dfa04052eacd28 (MD5) Previous issue date: 2008-09-05 / The Oil Measurement Evaluation Laboratory (LAMP), located in the Federal University of Rio Grande do Norte (UFRN), has as main goal to evaluate flow and BS&W meters, where the simulation of a bigger number of operation variable in field, guarantees a less uncertain evaluation. The objective of this work is to purpose a heating system design and implementation, which will control the temperature safely and efficiently in order to evaluate and measure it. Temperature is one of the variables which influence the flow and BS&W accurate measurement, directly affecting the fluid viscosity and density in the experiment. To project the heating system it is of great importance to take the laboratory requirements, conditions and current restrictions into consideration. Three alternatives were evaluated: heat exchanger, internal resistance and external resistance. After the analyses are made in order to choose the best alternative for the heating system in the laboratory, control strategies were determined for it, PID control methods in combination with fuzzy logic were used. Results showed a better performance with fuzzy logic than with classic PID / O Laborat?rio de Avalia??o de Medi??o em Petr?leo (LAMP) da Universidade Federal Rio Grande do Norte (UFRN) tem como meta principal avaliar medidores de vaz?o e BS&W,em que a utiliza??o de um maior n?mero de vari?veis de opera??o garante uma avalia??o com menor porcentagem de incertezas. O objetivo deste trabalho foi projetar e implementar um sistema de aquecimento que dar? cobertura ao controle de temperatura, de forma segura e eficiente, para fins de avalia??o e medi??o. A temperatura ? uma das vari?veis que exerce influ?ncia na hora de medir com exatid?o a vaz?o e BS&W, afetando diretamente a viscosidade e a densidade do fluido. Para projetar o sistema de aquecimento foi de vital import?ncia os requisitos do laborat?rio, como condi??es e restri??es atuais. Tr?s alternativas foram avaliadas: trocador de calor, resist?ncias externas e resist?ncias internas. Depois da an?lise feita, a fim de escolher a melhor alternativa para o sistema de aquecimento do laborat?rio, foram determinadas estrat?gias de controle para o mesmo. T?cnicas de controle PID combinadas com l?gica Fuzzy foram implementadas. Os resultados mostraram um melhor desempenho desta estrat?gia de controle comparada com um PID cl?ssico