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Your search keyword '"Meng, Kaifeng"' showing total 14 results
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14 results on '"Meng, Kaifeng"'

10. Research on Cybersecurity Strategy and Key Technology of the Wind Farms’ Industrial Control System

Author

Peng Hu, Zhen Chen, Wang Dong, Wang Yinsheng, Wang Qile, Baihua Yang, and Meng Kaifeng

Subjects
Computer science, Network security, business.industry, media_common.quotation_subject, ComputingMilieux_LEGALASPECTSOFCOMPUTING, Intrusion detection system, Industrial control system, Computer security, computer.software_genre, Grid, Work (electrical), Key (cryptography), Function (engineering), Cyberspace, business, computer, media_common
Abstract

Affected by the inherent ideas like "Focus on Function Realization, Despise Security Protection", there are lots of hidden threats in the industrial control system of wind farms (ICS-WF), such as unreasonable IP configuration, failure in virus detection and killing, which are prone to illegal invasion and attack from the cyberspace. Those unexpected unauthorized accesses are quite harmful for the stable operation of the wind farms and regional power grid. Therefore, by investigating the current security situation and needs of ICS-WF, analyzing the characteristics of ICS-WF’s architecture and internal communication, and integrating the ideas of the classified protection of cybersecurity, this paper proposes a new customized cybersecurity strategy for ICS-WF based on the barrel theory. We also introduce an new anomalous intrusion detection technology for ICS-WF, which is developed based on statistical models of wind farm network characteristics. Finally, combined all these work with the network security offense and defense drill in the industrial control safety simulation laboratory of wind farms, this research formulates a three-dimensional comprehensive protection solution for ICS-WF, which significantly improves the cybersecurity level of ICS-WF.

Published
2021
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14. Expression analysis of Igs and mucosal immune responses upon SVCV infection in common carp ( Cyprinus carpio L. ).

Author

Wu S, Meng K, Wu Z, Sun R, Han G, Qin D, He Y, Qin C, Deng P, Cao J, Ji W, Zhang L, and Xu Z

Abstract

The immunoglobulin (Ig) is a crucial component of adaptive immune system in vertebrates including teleost fish. Here complete cDNA sequence of IgD heavy chain gene from common carp ( Cyprinus carpio ) was cloned and analyzed. The full-length cDNA of IgD heavy chain gene contained an open reading frame (ORF) of 2460 bp encoding 813 amino acids. According to amino acids sequence, multiple alignment and phylogenetic analysis showed that carp Igs are closely related to those of Cyprinidae fish. Transcriptional expression of IgD as well as IgM, IgZ1 and IgZ2 showed similar expression patterns in different organs, this is, high expression level in systemic immune tissues (ie, head kidney, heart and spleen) and low expression in mucosal tissues (ie, gill, skin and gut). Following viral infection with spring viraemia of carp virus (SVCV), obvious pathological changes in skin, gill and gut mucosa and up-regulated expression of antiviral related genes in skin, gill, gut and spleen were observed, indicating that SVCV successfully infected common carp and activated the systemic and mucosal immune system. Interestingly, IgM showed a significant up-regulation only in systemic tissue (spleen), but not in mucosal tissues (gut, gills and skin), while increased expression of IgZ1 and IgZ2 was found in gut. In contrast, the expression of IgD increased significantly in spleen, gills and skin. These strongly suggest that fish Ig isotypes play different roles in mucosal and systemic immunity during viral infection. Common carp (Cyprinus carpio); Igs; Spring viraemia of carp virus (SVCV)., Competing Interests: None., (© 2021 The Author(s).)

Published
2021
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