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Precise asymptotics in the law of the logarithm for the rescaled range statistic
Zheng-Yan Lin,Tian-Xiao Pang,황교신 한국통계학회 2013 Journal of the Korean Statistical Society Vol.42 No.2
For a sequence of i.i.d. zero mean random variables belonging to the domain of attraction of the normal law, two results concerning the rescaled range statistic are investigated in this paper. More specifically, we obtain precise asymptotics in the law of the logarithm related to complete convergence and a.s. convergence under some mild conditions.
A New Objective Video Quality Metric for Stereoscopic Video
( Yan Zheng ),( Jungdong Seo ),( Kwanghoon Sohn ) 한국정보처리학회 2012 한국정보처리학회 학술대회논문집 Vol.19 No.1
Although quality metrics for 2D video quality assessment have been proposed, the quality models on stereoscopic video have not been widely studied. In this paper, a new objective video quality metric for stereoscopic video is proposed. The proposed algorithm consider three factors to evaluate stereoscopic video quality: blocking artifact, blurring artifact, and the difference between left and right view of stereoscopic video. The results show that the proposed algorithm has a higher correlation with DMOS than the others.
Zheng-Fei Yan,Jian Guo,Feng-Hua Tian,Xin-Xin Mao,Yu Li,Chang-Tian Li 한국생물공학회 2015 Biotechnology and Bioprocess Engineering Vol.20 No.4
Schisandra chinensis has been used as traditional medicine. The structures of isolate active compounds (schisandrin B, deoxyschisandrin, schisandrin C) from S. chinensis were characterized by physical and spectroscopic analyses. Active compounds were tested for their potential to act as anti-melanogenesis or skin-whitening agents by their abilities to inhibit tyrosinase activity in the cell-free mushroom tyrosinase assay and cellular tyrosinase derived from B16 melanoma cells. The tyrosinase inhibitory activity was correlated to the inhibition of melanin productions in α-MSH-stimulated and unstimulated B16 cells. Cellular tyrosinase kinetics were analyzed and showed by Lineweaver- Burk plot. Schisandrin B was minimally cytotoxic (cell viability: 88.99% at 0.75 μM) and the IC50 value for suppression of mushroom tyrosinase activity was estimated as 0.6 μM. Zymography analysis demonstrated schisandrin B’s concentration-dependent effects and the kinetic analysis indicated schisandrin B’s noncompetitive-inhibitory action.
Altererythrobacter deserti sp. nov., isolated from desert soil
Yan, Zheng-Fei,Lin, Pei,Won, Kyung-Hwa,Yang, Jung-Eun,Li, Chang-Tian,Kook, MooChang,Yi, Tae-Hoo Microbiology Society 2017 International journal of systematic and evolutiona Vol.67 No.10
<P>A Gram-stain-negative, aerobic, short rod-shaped, non-motile bacterium (THG-S3(T)), was isolated from desert soil. Growth occurred at 15-35 degrees C (optimum 28 degrees C), at pH 5-10 (optimum 7) and at 0-4% NaCl (optimum 1 %). Based on 16S rRNA gene sequence analysis, the nearest phylogenetic neighbours of strain THG-S3(T) were identified as Altererythrobacter rigui KCTC 42620(T) (99.0 %), Altererythrobacter dongtanensis KCTC 22672(T) (97.1 %), Altererythrobacter xinjiangensis CCTCC AB 207166(T) (96.9 %), Altererythrobacter troitsensis KCTC 12303(T) (96.9 %). Levels of relatedness among strain THG-S3(T) and other Altererythrobacter species were lower than 96.0 %. DNA-DNA hybridization values between strain THG-S3(T) and A. rigui KCTC 42620(T), A. dongtanensis KCTC 22672(T), A. xinjiangensis CCTCC AB 207166(T) and A. troitsensis KCTC 12303(T) were 59.7% (42.8 %, reciprocal analysis), 45.1% (36.3 %), 34.7% (25.1 %) and 15.1% (12.3 %), respectively. The DNA G+C content of strain THG-S3(T) was 69 mol%. The polar lipids were diphosphatidylglycerol, phosphatidylethanolamine, phosphatidylglycerol and three unidentified lipids The quinone was ubiquinone-10. The major fatty acids were C-16 : 0, C-17 : 1 omega 6c, C-18 : 1 omega 7c and summed feature 3 (C-16 : 1 omega 7c and/or C-16 : 1 omega 6c). On the basis of the phylogenetic analysis, chemotaxonomic data, physiological characteristics and DNA-DNA hybridization data, strain THG-S3(T) represents a novel species of the genus Altererythrobacter, for which the name Altererythrobacter deserti sp. nov. is proposed. The type strain is THG-S3(T) (=KACC 19190(T) = CGMCC 1.15959(T)).</P>