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Aiming to overcome the shortcomings of Grid resource discovery, this paper presents a Grid resource discovery model with different layers, which adopts P2P (Peer-to-Peer) technology in Grid resource discovery mechanism. The model includes three layers based on three different peers: the Super peer_Agent, Super Peer and Ordinary peer. According to the model, this paper produces a novel Grid resource...
In order to improve the dynamic and scalability of grid, the paper adopts the way fusing P2P and Grid organically, which resolves the issue that the node can join randomly and the resource-sharing can be dynamic in gird. This paper builds a resource architecture model based on P2PGrid and proposes a resource discovery algorithm fusing DHT and ant colony algorithm. This algorithm can accurately and...
The network learning environment is one of the keys who decide the quality of network-based education. The paper discusses the learning idea of constructivist theory and the design principles of learning environment based on constructivist theory. Then the paper proposes the overall framework of multi-strategic learning environment based on constructivist theory and analyzes in details the multiple...
This paper addresses the issue of modeling and understanding the dynamics of customer relationships. Our approach to modeling relationship dynamics is structurally different from the models in the existing literature. We construct a Partially Observable Markov Decision Process (POMDP) to relate the latent relationship states to the observed buying behavior. The POMDP enables the marketer to estimate...
While an attenuated vaccine against mumps has played a role in controlling the epidemic of this disease worldwide, some problems with efficacy and safety of the vaccine are still present. In the work described here, a novel mumps vaccine with good immunity and safety was developed by selecting an antigen component of the mumps virus. The results suggest that this purified antigen vaccine is immunogenic...
The pathological mechanism of SARS-CoV infection was investigated. The gene for the SARS-CoV non-structural protein 10, which is located in the open reading frame of pp1a/pp1ab gene, was synthesized and used to screen for the specific cellular gene coding for the protein interacting with this nsp10 protein in a human embryo lung cDNA library using a yeast trap method. The results indicated that apart...
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