Digital Connection
Mostrando 13-24 de 36 artigos, teses e dissertações.
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13. Projeto de um ECG de alta resolução com 12 canais e interface USB utilizando microcontrolador ARM / Design of a high resolution ECG with 12 leads and USB interface using ARM microcontroller
The electrocardiogram represents the electrical activity of the heart and is one of the most performed tests in cardiologists offices. The high resolution electrocardiogram may show features of the ECG signal important to diagnosis and usually not presented by the conventional test. This work presents the design, development and construction of a system that
Publicado em: 2009
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14. Os recursos da computação gráfica na elaboração de projetos / Graphic computer resources in the working up of projects
Information Technology provides a large range and its development is not only to improve memory and speed capacity but mainly to get the three basic principles of connection : sender, message and receiver. Interfaces have been optimized for users to add their possibilities of projects conceiving and to shorten the necessary time to acquire technical knowledg
Publicado em: 2009
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15. Sobre promessas da era da Internet : uma análise de mudanças no relacionamento Estado-Sociedade decorrentes da utilização intensiva de tecnologias de comunicação e informação por agentes públicos no Brasil
This Thesis sought to elaborate a theoretical and methodological framework to the study of the consequences of the intensive ICT use by Government in the State-Society relationship, and how it would allow permanent, interactive participation of the citizens in the governmental processes and a flow of constant information in double hand. This multidisciplinar
Publicado em: 2008
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16. Alocação de tráfego em redes ópticas em anel com proteção
Este trabalho apresenta um modelo de Programação Linear para uma rede óptica SDH (Synchronous Digital Hierarchy) com proteção SNC-P (Subnetwork Connection Protection) que tem como objetivo otimizar o roteamento do tráfego cursado. O modelo foi descrito pelo software AMPL e resolvido através do pacote comercial Cplex1. Foram realizados diferentes teste
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 21/12/2007
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17. Mutually connected DPLL networks: modelling, simulation and optimization. / Redes mutuamente conectadas de DPLLs: modelagem, simulação e otimização.
Clock-distribution is an essential feature in many engineering applications as, for example, telecommunications networks and digital integrated circuits. In the last few decades this problem was predominantly addressed using master-slave strategies. In this type of strategy there are precise reference oscillators in the network called masters and their signa
Publicado em: 2007
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18. Poesia concreta e mídia digital: o caso Augusto de Campos
The dialog between Augusto de Camposwork and available medias in each period, it is de start point for this research. This affirmation suggests the investigation about poetic procedures put in practice by Augusto de Campos at the possibility of translation to electronic-digital support. The work hypothesis are: a) Augusto de Campos poetry is intersemiotic; b
Publicado em: 2007
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19. Interface architecture / Arquitetura de interface: análise de formas de organização da informação entre pessoas e códigos
Two important facts are observed in the communicational processes in the last two decades. The first one is the mass use of the computers on a global scale digital support and the second one is the connection between them the net. Both facts were accompanied by significant changes in the interface between man and machine. The wide spread of the computer had
Publicado em: 2006
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20. Tecnologias na escola: o mito de Sísifo ou um salto na aprendizagem
The debate concerning digital inclusion at public schools lately has focused not only on the schools structure, but mainly on the ways of using Information and Communication Technology . The present work aims to analyze how those well prepared schools in terms of structure and equipment are implementing digital inclusion programs. More specifically, it tried
Publicado em: 2006
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21. Corpo e cidade: comunicação e contaminação
The research investigates the connection between the body and the city as a systemic structural coupling through which the flux of informatio n is organized as communicative process. In order to do so, we analyze the concept of environment according to a few bio -semiotic theories (Uexküll, 2004), the concept of embodiment assessed by the bodymedia theory (
Publicado em: 2006
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22. Distribution system FACTS (flexible AC transmission systems) application - performance simulation. / Aplicação do dispositivo FACTS (Flexible AC Transmission Systems) em sistema de distribuição -simulação de desempenho.
The new FACTS technologies applied to the transmission system, based on power electronics, can also be useful to the distribution. For that, it is necessary to drive a procedure to consolidate the use and the performance for their application without risks. In this work two aspects will be approached. The first refers to the application of a FACTS device act
Publicado em: 2006
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23. Desenvolvimento de conversor comutado em baixa frequencia para aplicação em sistemas de geração distribuida baseados em celulas a combustivel / Development of a low-frequency commutation converter for distributed generation system based on fuel cells
The connection of distributed power sources with the utility grid generally needs an electronic power converter for processing the locally generated power and injecting current into the system. This work presents a system intended to low-power distributed generation composed by a DC primary source, as a fuel cell. A boost converter connects the supply to an
Publicado em: 2006
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24. Tecnicas digitais para sincronização com a rede eletrica, com aplicação em geração distribuida / Digital techniques for power grid synchronization, with applications in distributed generation
Este trabalho visa contribuir para os estudos sobre sincronismo em um Sistema Elétrico de Potência (SEP), com enfoque em Geração Distribuída (GD). Buscar-se-á analisar as condições para operação de um gerador distribuído em paralelo com a rede elétrica, bem como desenvolver metodologias de sincronismo para tal. Muitos algoritmos propostos para ap
Publicado em: 2006