Ji-qiang Liu

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The Internet/Intranet information systems have been used by many enterprise and government department in their practical routine works today, how to design an access control model to ensure the security of their information systems become a first important problem. The aim of setting up an organization structure is to accomplish its charged tasks. There are(More)
A series of novel benzo[b][1,4]oxazin-3(4H)-one derivatives were synthesized as platelet aggregation inhibitors for structure-activity relationships (SAR) analysis. The synthetic pattern, involved Smiles rearrangement for the preparation of benzoxazine, was proven to be more efficient than the conventional methods. Biological evaluation demonstrated that(More)
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