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Man Zhang,Su‑Su Li,Qiao‑Mei Xie,Jian‑Hua Xu,Xiu‑Xiu Sun,Fa‑Ming Pan,Sheng‑Qian Xu,Sheng‑Xiu Liu,Jin‑Hui Tao,Shuang Liu,Jing Cai,Pei‑Ling Chen,Long Qian,Chun‑Huai Wang,Chun‑Mei Liang,Hai‑Liang Huang,Ha 한국유전학회 2018 Genes & Genomics Vol.40 No.10
Although the current glucocorticoids (GCs) treatment for systemic lupus erythematosus (SLE) is effective to a certain extent, the difference in therapeutic effect between patients is still a widespread problem. Some patients can have repeated attacks that greatly diminish their quality of life. This study was conducted to investigate the relationship between HSP90AA2 polymorphisms and disease susceptibility, GCs efficacy and health-related quality of life (HRQoL) in Chinese SLE patients. A case–control study was performed in 470 SLE patients and 470 normal controls. Then, 444 patients in the case group were followed up for 12 weeks to observe efficacy of GCs and improvement of HRQoL. Two single nucleotide polymorphisms (SNPs) of HSP90AA2 were selected for genotyping: rs1826330 and rs6484340. HRQoL was assessed using the SF-36 questionnaire. The minor T allele of rs1826330 and the TT haplotype formed by rs1826330 and rs6484340 showed associations with decreased SLE risk (T allele: PBH = 0.022; TT haplotype: PBH = 0.033). A significant association between rs6484340 and improvement of HRQoL was revealed in the follow-up study. Five subscales of SF-36 were appeared to be influenced by rs6484340: total score of SF-36 (additive model: PBH = 0.026), physical function (additive model: PBH = 0.026), rolephysical (recessive model: PBH = 0.041), mental health (dominant model: PBH = 0.047), and physical component summary (additive model: PBH = 0.026). No statistical significance was found between HSP90AA2 gene polymorphisms and GCs efficacy. These results revealed a genetic association between HSP90AA2 and SLE. Remarkably, HSP90AA2 has an impact on the improvement of HRQoL in Chinese population with SLE.
Inorganic-organic Hybrid Proton Conductive Membranes Doped with Phosphoric Acid
Sheng-Jian Huang,Yong Su Lee,Hoi Kwan Lee,Won Ho Kang 한국산학기술학회 2004 한국산학기술학회 학술대회 Vol.- No.-
A new proton conductive inorganic-organic hybrid membrane doped with H₃P0₄ was fabricated via sol-gel process wit 3-glycidoxypropyltrimethoxysilane(GPTMS), 3-aminopropyltriethoxysilane(APIES)andtetraethoxysilane(TEOS)asprecursors. Theproto conductivity of about 3.0 x 10¯³ S/cm was obtained at 120°C under 50% relative humidity (R.H). DTA curves showed that the thermal stability of the membrane is significantly enhanced by the presence of SiO₂ framework up to 250°C. SEM and XRD revealed that the gel is microporou and amorphous. The addition of APTES improved the conductivity of the membranes and the effect of the APIES on the conductivity was also discussed in this paper.
An Online Response System for Anomaly Traffic by Incremental Mining with Genetic Optimization
Su, Ming-Yang,Yeh, Sheng-Cheng The Korea Institute of Information and Commucation 2010 Journal of communications and networks Vol.12 No.4
A flooding attack, such as DoS or Worm, can be easily created or even downloaded from the Internet, thus, it is one of the main threats to servers on the Internet. This paper presents an online real-time network response system, which can determine whether a LAN is suffering from a flooding attack within a very short time unit. The detection engine of the system is based on the incremental mining of fuzzy association rules from network packets, in which membership functions of fuzzy variables are optimized by a genetic algorithm. The incremental mining approach makes the system suitable for detecting, and thus, responding to an attack in real-time. This system is evaluated by 47 flooding attacks, only one of which is missed, with no false positives occurring. The proposed online system belongs to anomaly detection, not misuse detection. Moreover, a mechanism for dynamic firewall updating is embedded in the proposed system for the function of eliminating suspicious connections when necessary.
Sheng Cui,Jin-Su Na,Na-Young Kim,이용훈,남상호 대한화학회 2013 Bulletin of the Korean Chemical Society Vol.34 No.11
This study focused on the matrix interference for the qualitative and quantitative analysis of inorganic arsenic species in seaweed by ion chromatography (IC) combined with inductively coupled plasma-atomic emission spectroscopy (ICP-AES). The matrix of seaweed has a significant effect on the determination of inorganic arsenic species. In particular, the retention times of inorganic arsenic species in the in the standard solution were different from those in seaweed because of the matrix interference. Thus, it was not suitable to use the chromatographic method for the determination of the arsenic species in seaweed. We investigated an alternative method for the determination of inorganic arsenic species in seaweed. The method was applied for the seaweed samples such as laver, green laver, sea tangle and sea mustard. The sample extraction methods of the arsenic species were also investigated in this study.
Characterizations of Ag-catalyzed ZnO nanostructures prepared by vapor–solid mechanism
Su-Hua Yang,Pao-Chih Chen,Sheng-Yu Hong 한국물리학회 2009 Current Applied Physics Vol.9 No.2
This paper presents the synthesis and field emission characteristics of zinc oxide (ZnO) nanostructures grown on Ag-deposited Si substrate by using the vapor–solid (VS) mechanism. The morphology of the ZnO nanostructures was related to source and substrate temperatures. Nanowhiskers, nanotips and well-aligned nanorods were grown at substrate temperatures of 620, 650 and 680℃, respectively. A strong bluish-green photoluminescence (PL) indicated that the nanostructures had many surface defects correlated with oxygen vacancies. Field emission analyses showed that the turn-on fields of ZnO nanowhiskers, nanotips and well-aligned nanorods were 4.5, 5.8 and 6.1 V/㎛, respectively. The high emitter density and high aspect ratio of the well-aligned nanorods resulted in an enhancement in emission current density. Furthermore, the field emission stability of the well-aligned nanorods was better than that of the nanowhiskers and nanotips. The emission current densities of the ZnO nanowhiskers, nanotips and well-aligned nanorods, measured after continuous operation for 6 h, were approximately 2.05, 4.68 and 20.5 μA/㎠, respectively. This paper presents the synthesis and field emission characteristics of zinc oxide (ZnO) nanostructures grown on Ag-deposited Si substrate by using the vapor–solid (VS) mechanism. The morphology of the ZnO nanostructures was related to source and substrate temperatures. Nanowhiskers, nanotips and well-aligned nanorods were grown at substrate temperatures of 620, 650 and 680℃, respectively. A strong bluish-green photoluminescence (PL) indicated that the nanostructures had many surface defects correlated with oxygen vacancies. Field emission analyses showed that the turn-on fields of ZnO nanowhiskers, nanotips and well-aligned nanorods were 4.5, 5.8 and 6.1 V/㎛, respectively. The high emitter density and high aspect ratio of the well-aligned nanorods resulted in an enhancement in emission current density. Furthermore, the field emission stability of the well-aligned nanorods was better than that of the nanowhiskers and nanotips. The emission current densities of the ZnO nanowhiskers, nanotips and well-aligned nanorods, measured after continuous operation for 6 h, were approximately 2.05, 4.68 and 20.5 μA/㎠, respectively.