Nanjing University of Posts and Telecommunicatins

Yangzhou University

Ying Wei

Wei Huang

Linghai Xie

Bin Li

Xiaobing Sun

Lei Tang

Hui Liu

Lili Bo

Chunxiao Zhong

Dongqing Lin

Xingqi Cheng

Quanyou Feng

Provided is an automatic event graph construction method for multi-source vulnerability information. The method includes the following steps. A vulnerability report is crawled from a vulnerability database, a cause of vulnerability is taken as an event trigger word, and a vulnerability type is determined through the cause of vulnerability. An attacker, consequence, location and other information in a description are identified by named-entity recognition, and information completion is performed. An explicit relation between events is extracted by using text information, an implicit relation between events is extracted by using text similarity, and vulnerability-related code representation is performed. Obtained vulnerability event information is visualized into an event graph through a visualization tool.

Automatic event graph construction method and device for multi-source vulnerability information

The invention relates to an organic polyspiralgrid nanopolymer material and a preparation method thereof, and belongs to the field of nanotechnology and organic electronics. The structure of the organic polyspiralgrid nanopolymer material is composed of grids containing a spiro ring that serves as a repeat unit to form a special nano polymer, and the structure shares the spiro ring structure. A synthetic method thereof relates to a synthon containing the spiro ring, and by means of a Friedel-Crafts reaction, an organic spirogrid and a nano polymer thereof are built. By means of reasonable molecular design and the Friedel-Crafts reaction with the advantages of being mild in reaction condition, high in yield, high in selectivity, simple in posttreatment, green, free of toxicity and the like, the problems that a traditional polymer molecule is complex in synthesis step, toxic in posttreatment, large in pollution and the like are solved.

Organic polyspirogrid nano polymer material and preparation method therefor

The present invention provides an organic nano-grid, a nano-polymer thereof and a preparation method therefor. The organic nano-grid has a general formula (I), and the nano-polymer has a general formula (II), wherein Ris an alkyl chain, Ris halogen or an electroactive group, and X may comprise a heteroatom such as N, O and S, and n is a natural number from 1 to 10. A nano-connection strategy is applied to the construction of a one-dimensional nano-polymer. The polymer starts from a monomer ABto form a corresponding nano-polymer by a Friedel-Crafts polymerization cyclization reaction.

Organic nano-grid, nano-polymer thereof and preparation method therefor

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Jiangsu, China

Ying Wei