Video On Demand
Mostrando 13-24 de 34 artigos, teses e dissertações.
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13. Modelagem de redes CDMA-PON baseadas em técnicas de cancelamento paralelo e códigos corretores de erros / Modeling of CDMA-PON networks using parallel interference cancellation and error correcting codes techniques
The advent of new services offered to end users, such as the so called triple play, which consists in the simultaneous traffic of voice, video, and data through the same communication infrastructure, has been pushing telecom operators towards providing adequate bandwidth as well as quality of service. This has brought the spotlight to passive optical network
Publicado em: 2009
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14. IPTV architecture with time-shift support based on peer-to-peer distribution. / Arquitetura de IPTV com suporte à apresentação deslocada no tempo baseada em distribuição peer-to-peer.
Telecommunication companies are suffering from the increasing offer of cheap and reliable voice over IP services, being forced to diversify their services looking for new revenue possibilities. Since these companies have a vast infrastructure, they are now providing TV services through the same telephony and data infrastructure, using their IP networks to of
Publicado em: 2009
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15. Desenvolvimento moral e práticas pedagógicas na educação infantil : um estudo sociocultural construtivista
Moral development has increasingly become an important research field within Developmental Psychology. This concern has emerged to meet the needs of a scientific perspective towards understanding human beings development from a holistic perspective, taking into account the participation of the educational system in such process. Social changes and its conseq
Publicado em: 2009
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16. Avaliação da qualidade de vídeo em redes IPTV com acesso baseado em ADSL / Video quality assessment in IPTV networks with based ADSL access
In the actual scenary, the growth of the access services demand based on wide band are Strengthening the IPTV services. Thus, the development of a IPTV network architecture project, to adequate to the clients needs and providers objectives, is important to examine the best usages, therefore they will be responsible for the continuity warrant of the supplied
Publicado em: 2008
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17. Digital video transmission rates reduction by object segmentation applied to bees study. / Redução da taxa de transmissão de vídeo digital por meio da aplicação de segmentação de objetos aplicado ao estudo de abelhas.
The use of videos in web based laboratories over computer networks, known as weblabs, is being conducted for bee research as part of the ViNCES (Virtual Network Center of Ecosystem Services) project, a research consortium composed by: LAA (Laboratório de Automação Agrícola da Escola Politécnica) and the Laboratório de Abelhas of the Ecology Department
Publicado em: 2008
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18. As práticas de comunicação em projetos globais de desenvolvimento de produtos em empresas multinacionais brasileiras / The practice of communication in global development projects of products in Brazilian multinational corporations
Global new product development projects go through the traditional knowledge areas of project management, and additionally they demand more attention related to the global environment aspects, such as coordination and control, and trust building and cooperation between geographically dispersed teams. Another important theme in this context is that the commun
Publicado em: 2008
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19. Processamento de amostras fecais e desenvolvimento da tecnica de analises de imagens por computador, para o diagnostico das enteroparasitoses / Processing of samples feces and development of the technique of analyses of images for computer, for the diagnosis of the enteroparasitoses
In the present study, we investigated on fecal sample processings, development and evaluation of a computer system for parasite image analysis. We observed that the fecal processing step was critical, but, essential for providing clean parasite structures, with reduced amount of fecal microdebris, to the system of computer analysis. Several conventional para
Publicado em: 2008
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20. Comparison between inverted and unprocessed digitized radiographic imaging in periodontal bone loss measurements
The advances in digital imaging technology in dentistry have provided an alternative to film-based radiography and have given new options to detect periodontal bone loss. The purpose of this study was to compare inverted and unprocessed digitized radiographic imaging in periodontal bone loss measurements. Thirty-five film-based periapical radiographs of pati
Journal of Applied Oral Science. Publicado em: 2007-12
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21. Um modelo para a implementação de vídeo sob demanda em ambientes corporativos / An Implementation model for video on demand in corporative environments
Com os avanços tecnológicos, as aplicações multimídia de vídeo sob demanda (VoD) são cada vez mais utilizadas. Por ser aplicável na área comercial, na área de entretenimento e até na área educacional, vídeo sob demanda é, ou será, muito empregada em ambiente corporativo. Contudo, dados multimídia, em especial vídeo, requerem certas garantias
Publicado em: 2007
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22. Descrição e proposição de uma solução de IPTV / Description and proposal of an end-to-end IPTV solution
This works concerns the study and the analysis of an IPTV solution (Internet Protocol Television). This kind of service is emerging in the Telco all over the world and its good acceptance is radically changing the business vision of the telecommunications providers. Final consumers will demand personalized services using multiple devices including TV channel
Publicado em: 2007
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23. Aplicações de antenas adaptativas em sistemas de comunicações móveis / Applications of adaptive antennas in wireless communications systems
The increasing demand for wireless communications services has demanded the development of technologies that allow serving a bigger amount of users without increasing the bandwidth used today. It also has an increasing demand for services that need high transmission rates on mobile terminal, as Internet and video transfer. On the other hand, the user desires
Publicado em: 2007
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24. Desenvolvimento de aplicações multimídia baseado em arquitetura orientada a serviços e nos padrões MPEG-7 e MPEG-21. / Developing multimedia applications using service oriented architectures and the MPEG-7 and MPEG-21 standards.
Multimedia applications are characterized for demanding huge network and computing resources. Because these demands, the current development models always were based on highly specialized and integrated architectures. Thus, they present monolithic structures which limits reuse, as well requiring a lot of efforts to perform changes. This approach limits the d
Publicado em: 2007