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A path calculation element that calculates the routes for hierarchical electrical and optical paths is proposed. It responds actively to the physical impairments so that the end-to-end performance of IP traffic is ensured.
Vegetation is the principal component of the constructed wetland (CW) systems. To better understand the effect of plant species, the nitrous oxide (N2O) fluxes and bacterial community structure diversity were compared in different CWs planted with six plants. The results showed that N2O fluxes had obvious differences in vegetation systems. The higher risk of N2O emissions was observed in CWs planted...
Ethernet passive optical network (EPON) is an emerging high-speed access network technology that can provide an ideal transmission platform for high- bandwidth applications such as IPTV (internet protocol television). To deploy the carrier-grade IPTV service, especially HDTV (high definition TV), it is very essential to construct a controllable multicast architecture for IPTV service over EPON. In...
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