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A Power and Performance Management Simulation Platform for Web Application Server Cluster
Zhi Xiong,Zhongliang Xue,Weihong Cai,Lingru Cai,Juan Yang 보안공학연구지원센터 2016 International Journal of Future Generation Communi Vol.9 No.12
Web application server cluster has been widely used to improve the performance of web application servers. Because web load is highly variable, we need to dynamically manage cluster’s deployment so as to reduce power consumption and meanwhile satisfy load performance demand. To facilitate researchers to evaluate a management strategy or choose key parameters for it, we propose a CloudSim-based simulation platform in this paper. It can simulate different cluster deployment algorithm, request scheduling algorithm and load feature, where cluster’s deployment includes the on/off state, CPU frequency and request scheduling parameter(s) of each server. By the aid of HookTimer component, the platform supports periodical and conditional deployment trigger modes, and can calculate some common performance indicators. The usage of interface, dynamic proxy technique and XML configuration file make the platform have good extensibility and configurability. In addition, a request-number-triggered management strategy is proposed and simulated by the platform. The simulation results demonstrate the feasibility of the platform.
Association of microRNA-3144 variant with the susceptibility to hepatocellular carcinoma
Jun Zhang,Yi Liu,Jie Liu,Rui Wang,Min Cai,Shunji Yu,Yanyun Ma,Weihong Xu,Chunfang Gao,Jiucun Wang,Lifang Hou 한국유전학회 2014 Genes & Genomics Vol.36 No.6
Increasing studies suggest that microRNAs, anew group of small non-coding molecules, regulate theexpression of their target genes and play some roles in cancers. Thus, it is hypothesized that the genetic variants ofmicroRNAs could contribute to the susceptibility to cancers. In this study, the association between rs67106263 in microRNA-3144 and the risk of hepatocellular carcinoma (HCC)was explored in a large-scaled case–control population basedon MassARRAY technology. It was discovered that comparedwith the carriers of wide-type GG genotype and heterozygoteGA genotype of microRNA-3144, thesignificantly increased risk of HCC was observed in thesubjects with the homozygote variant AA (adjusted oddsratio = 1.285, 95 % confidence interval = 1.004–1.643,P = 0.046). Additionally, the variant was also associatedwith the expression of alpha fetoprotein (AFP), which is thediagnostic marker for HCC. Our findings suggest for the firsttime that rs67106263 may play some roles in the risk of HCC,expecting future molecular researches to elucidate the possiblemechanisms behind these results.