• Proceedings of the Korea Information Processing Society Conference
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• 2011.11a
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• pp.703-705
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• 2011

내부 네트워크의 IP관리를 위해 많은 네트워크 관리 방안 및 솔루션들이 기 구축되어 운영 중이고, 이를 위해 내부 네트워크에 연결된 모든 단말에 특정 Agent를 설치하여 IP를 관리하고 있어 단말(PC, IPT전화기 등)의 OS에 따른 기종별 Agent의 호환문제 및 단말에 기 설치 운영중인 응용프로그램과의 충돌문제가 발생한다. 본 연구에서는 이러한 네트워크 IP관리를 위해 Agent가 필요 없는 네트워크 관리 방식을 제안한다. 네트워크 Switch장비 Firmware의 포트차단 설정을 이용한 기법으로 Agent의 설치없이 Switch장비의 Firmware를 이용하여 네트워크의 접근제어가 가능함을 제안한다. 이를 위하여 인가되지 않은 IP를 Switch장비의 Firmware로 차단하여 네트워크의 접근제어가 가능함을 증명하였다.

• Journal of Plant Biotechnology
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• v.44 no.3
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• pp.220-228
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• 2017

Many crops including cereals, tuber crops, feeds, and turf grasses are often damaged by various environmental stresses such as drought, salt, cold, and high temperature, causing the reduction of their productivity. Plants are sessile and cannot escape from environmental stresses. Thus, plants evolve in the direction of overcoming the environmental stresses. Some plant genes such as ARF, ABI3, NAC, HSF, and WRKY are known to respond to environmental stresses as they transcriptionally regulate the stress response pathways. For example, the OsWRKY76 gene contributes to the enhanced resistance to low temperatures and pathogenic infections. The AtWRKY28 also plays a role in environmental stresses. Zoysiagrass (Zoysia japonica Steud.) is popularly grown for gardens and golf courses. However, the function of the WRKY gene, another environmental stress-related gene, is not known in zoysiagrass. In this study, the ZjWRKY3 and ZjWRKY7 genes with one shared WRKY domain have been isolated in zoysiagrass. The expression of these genes increased in response to low temperature, drought, and salt stresses. Furthermore, the infection of the brown patch-causing Rhozoctonia solani induced the expression of ZjWRKY3 and ZjWRKY7. The corresponding proteins bind to the W-box of the Zjchi promoter, possibly regulating their transcriptions. The researchers suggest that the ZjWRKY3 and ZjWRKY7 genes transcriptionally regulate abiotic and biotic stress related downstream genes.