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Raw coal changes and quality requirements in China have meant that coal preparation plants are looking to improve their washing processes and flotation equipment. By doing this, one coal mine increased efficiencies of its clean coal filter press, recovery of flotation technique and coal slime content, improving its processing capacity.
IP multicast suffers from scalability and QoS provisioning problems when supporting large scale group communication cross domain. To solve the problems, we propose WSCT-PAN, a per-access-network based wide-sense circuit tree transmission scheme, in which one Wide-Sense Circuit Tree (WSCT) is established for a class of multicast traffic per access network. By using mapping and label switching, multiple...
Traditional multicast protocol forms multicast trees rooted at different sources to forward packets. If the multicast sources and receivers are in different domains, these trees will produce a great number of multicast states in the backbone, resulting in poor scalability. Therefore, we propose a one Wide-Sense Circuit Tree per Traffic Class based inter-domain multicast (WSCT-TC), in which a Wide-Sense...
To achieve scalability and Quality of Service (QoS) of multicast service, a multicast mechanism called Macro Circuit Tree (MCT) is proposed. By aggregating the multicast groups with the same or similar QoS requirement, MCT could efficiently reduce the forwarding entries in routers and improve the multicast scalability. Because MCT adopts Macro Circuit (MC) to forward multicast packets, it could also...
Because the PrivacyCA defined in TCG specification may leak user's privacy and trace his transactions, two PrivacyCA schemes with higher untraceability are proposed. The agents-based one provides higher untraceability by introducing agents and VK certificates to eliminate the linkage between EK and AIK. By adopting Partially Blind Signature algorithm in the generation of AIK triples, PBS-based one...
Trusted computing group developed two solutions to realize remote attestation between platforms, but both of them have drawbacks. Privacy CA defined by trusted computing group needs to be highly available and may collude with verifier to trace user's transactions. direct anonymous attestation proposed in trusted platform module specification v1.2 is not efficient because it adopts many exponential...
The PrivacyCA defined in Trusted Computing Group (TCG) specifications may be the performance bottleneck of trusted applications, because it needs to be involved in every transaction of attestation to maximize privacy and in a future trust-enabled Internet a PrivacyCA potentially has to serve millions of customers. In this paper we show how the scalability of PrivacyCA can be improved. In this context,...
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