307 resultados para Rede Piezométrica


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A Rede Nacional de Televisão Pública Digital3 (RNTPD), antes prevista para ser implantada por meio de um Operador de Rede Público, passa agora a ser estudada para ser efetivada por meio da malha de fibra óptica da Telebrás (banda larga), empresa que apresentou projeto com possibilidade de redução em 50% dos gastos da implantação da rede. Com a previsão da parceria, a meta da implantação da rede deve atingir cerca 4,3 mil cidades em quatro anos, chegando a aproximadamente 80% dos municípios brasileiros. Por meio de uma pesquisa exploratória, este artigo tem o objetivo de apresentar alguns conceitos de televisão pública discutidos pela sociedade civil organizada e academia para a RNTPD.

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This paper shows the modeling and control of a single-phase full-bridge inverter with high-frequency transformer that may be used as part of a two-stage converter with transformerless DC-DC side or as a single-stage converter (simple DC-AC converter) for grid-connected PV applications. The inverter is modeled in order to obtain a small-signal transfer function used to design the P+Resonant current controller. A highfrequency step-up transformer results in reduced voltage switches and better efficiency compared with converters in which the transformer is used on the DC-DC side. Simulations and experimental results with a 200 W prototype are shown. 1

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The purpose of this article is to reflect on the movement of professionalization of teaching, emphasizing the importance given to vocational training (initial and continuing) in this context. The research is qualitative in that it sought in the testimonies of eight physical education teachers, the São Paulo public state educacional, to elucidate the reflections from the literature review. It was found that although the social and political discourses glimpse the teacher as the main agent of social transformation, this possibility still presents far for this group, especially in view of the heavy workload and poor remuneration, hindering investment in training. It was concluded that this group is immersed in speeches ambiguous and contradictory processes, characterizing a movement of professionalization and concomitant deprofessionalization in teaching.

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Given the objective of the Educational Observatory Program of putting in conjunction the efforts of graduation and basic school in order to improve the quality of the latter, are sought possibilities offered by such an arrangement for teacher education. The assumed action research methodology is designed as a collective rethinking about the social practice in which participants were immersed. It is identified strong correlation among the school/graduation interaction and the nature of the underlying teacher education design. The constitution of research questions accomplished inside the school and the centrality of Small Research Groups in a broad network of interactions were determinants.

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Pós-graduação em Psicologia - FCLAS