954 resultados para Espaço de Comunicação


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One of the most important decisions to turn a substation automatic and no attended it relates to the communication media between this substation and Operation Center. Generally energy companies uses radio or optic fiber, depending of distances and infrastructure of each situation. This rule applies to common substations. Mobile substations are a particular case, therefore they are conceived for use at provisional situations, emergencies, preventive or corrective maintenance. Thus the telecommunication solution used at common substations are not applied so easily to mobile substations, due absence of infrastructure (media) or difficulty to insert the mobile substation data in existing automation network not long. The ideal media must supply covering in a great geographic area to satisfy presented requirements. The implantation costs of this big infrastructure are expensive, however a existing operator may be used. Two services that fulfill that requirements are satellite and cellular telephony. This work presents a solution for automation of mobile substations through satellite. It was successfully implanted at a brazilian electric energy concessionaire named COSERN. The operation became transparent to operators. Other gotten benefits had been operational security, quality in the supply of electric energy and costs reduction. The project presented is a new solution, designed to substations and general applications where few data should be transmitted, but there is difficulties in relation to the media. Despite the satellite having been used, the same resulted can be gotten using celullar telephony, through Short Messages or packet networks as GPRS or EDGE.

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This work discuss about the transformation of public space, based on the recent challenges imposed by communication practices that are renewed and recopying of the sociocultural contexts of everyday life. The study presents theoretical and empirical reports of regional political blogs. In this issue, it looks for understand the political participation in the Internet space, examining the reconfigurations that accompany social relations and new forms of interaction that are merged in the media scene. The ambience of the study limits comments of readers in two political blogs in Rio Grande do Norte, Território Livre, and Thaisa Galvão. The observation concerns about the democratic participation of citizens in matters of collective interest, during the 2010 election. The analysis update the debate on democratic discussion and conversation everyday, trying to grasp changes in social practices in virtual platforms. From this perspective, the work restores some conceptual notions that involve the public places, identifying the changes that appear in the virtual and traditional spheres, with the emergence of new places of conversations, from the Internet usage. Are also compared to similarities and differences between the two elements of the analysis. It is possible, therefore, the communication process of the two discursive spaces with ideas from the public sphere, trying to analyze the duality between public, private, and political participation in these virtual places

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Due to the constantly increasing use of wireless networks in domestic, business and industrial environments, new challenges have emerged. The prototyping of new protocols in these environments is typically restricted to simulation environments, where there is the need of double implementation, one in the simulation environment where an initial proof of concept is performed and the other one in a real environment. Also, if real environments are used, it is not trivial to create a testbed for high density wireless networks given the need to use various real equipment as well as attenuators and power reducers to try to reduce the physical space required to create these laboratories. In this context, LVWNet (Linux Virtual Wireless Network) project was originally designed to create completely virtual testbeds for IEEE 802.11 networks on the Linux operating system. This paper aims to extend the current project LVWNet, adding to it the features like the ability to interact with real wireless hardware, provides a initial mobility ability using the positioning of the nodes in a space coordinates environment based on meters, with loss calculations due to attenuation in free space, enables some scalability increase by creating an own protocol that allows the communication between nodes without an intermediate host and dynamic registration of nodes, allowing new nodes to be inserted into in already in operation network

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Investigam-se imagens e significados sobre experiências vivenciadas por pacientes no processo de atendimento/tratamento em uma enfermaria, visando problematizar questões éticas no cotidiano das práticas de saúde, que possam contribuir para refletir, no espaço da formação profissional, sobre situações que, muitas vezes, se naturalizam pela urgência da rotina. O trabalho consistiu em entregar câmaras fotográficas a cinco pacientes acamados, internados em uma Enfermaria de Ortopedia de um hospital universitário, no segundo semestre do ano de 2001, para que registrassem, pela fotografia, experiências que vivenciavam na condição de pacientes, procurando responder às perguntas: o que significa estar na cama sem poder sair dela? O que é bom e o que é ruim em sua rotina na Enfermaria? Buscando compreender o material pela ótica dos pacientes, apresenta-se aqui parte da experiência registrada e relatada. Os resultados obtidos apontam que entre as maiores dificuldades enfrentadas pelos pacientes entrevistados estão a dependência, gerando constrangimento e desconforto, e a falta de informação, gerando insegurança e ampliando a dependência.

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior

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Pós-graduação em Engenharia Elétrica - FEIS

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Pós-graduação em Comunicação - FAAC

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Pós-graduação em Comunicação - FAAC

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Pós-graduação em Comunicação - FAAC

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Pós-graduação em Comunicação - FAAC

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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Pós-graduação em Comunicação - FAAC