Gateways
Mostrando 13-18 de 18 artigos, teses e dissertações.
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13. Estimação da capacidade de redes sem fio do tipo Mesh / Capacity estimation of wireless mesh networks
Este trabalho apresenta uma estimação da capacidade das redes sem fio tipo Mesh. As redes deste tipo têm topologias e padrões de tráfego únicos que as diferenciam das redes sem fio convencionais. Nas redes sem fio tipo mesh os nós atuam como clientes e como servidores e o tráfego e encaminhado para uma ou várias gateways em um modo multi-salto. A es
Publicado em: 2005
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14. Cancelamento de eco em telefonia IP
The objetive of this thesis is the study about echo cancellation in a IP telephony, providing a new technique better than the actual one employed in gateways. This technique takes account the fact that the delay in an IP network is variable. This work presents an overview on adaptive lter subject, following an study about echo cancellation in a PSTN network,
Publicado em: 2004
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15. Proposta de um modelo de seguranÃa para VPNs na interligaÃÃo de redes corporativas
A Virtual Private Network - VPN is a protected connection, built for the private use of the enterprise, over a shared public network. A VPN uses security protocols, cryptography technologies and authentication to guarantee characteristics of a private and dedicated network to enterprises that use a not-trustworthy infrastructure, as the Internet, for interco
Publicado em: 2004
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16. Academic Libraries as High-Tech Gateways: A Guide to Design and Space Decisions
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17. Molecular events and energy changes during the action potential.
A novel interpretation of the existing data concerning the energy changes associated with nerve impulse propagation is proposed. The main conclusion is that the negative phrase ofthe initial heat of activity cannot be accounted for without recourse to conformational changes in membrane proteins. It stems from analyzing and computing the energy changes associ
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18. Impairment of Nuclear Pores in Bovine Herpesvirus 1-Infected MDBK Cells
Herpesvirus capsids originating in the nucleus overcome the nucleocytoplasmic barrier by budding at the inner nuclear membrane. The fate of the resulting virions is still under debate. The fact that capsids approach Golgi membranes from the cytoplasmic side led to the theory of fusion between the viral envelope and the outer nuclear membrane, resulting in th
American Society for Microbiology.