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RISS 인기검색어
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- 저자 : Chao-gang Qin (검색결과 5 건)
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Shaking Table Test on Seismic Responses of a Monolithic Precast Concrete Shear Wall Structure
Chao-gang Qin,Guoliang Bai,Ya-zhou Xu,Ning Fen Su,Tao Wu,Zhong Liang Li,Yu Zhe Sun 대한토목학회 2018 KSCE Journal of Civil Engineering Vol.22 No.10
To examine the seismic performance of Monolithic Precast Concrete Shear Wall (MPCSW) structure, a 1/5-scaled twelve-story model is designed and investigated by shaking table test, and connections between the precast elements and their impact on seismic performance of the overall model are comprehensively inspected and analyzed. Based on the testing results, the structural responses are divided into elastic stage and plastic stage, and the variations of dynamic characteristics, cracking and failure pattern, seismic responses of the model are accordingly presented. The experimental results indicate that most of critical cracks of the MPCSW model locate on the coupling beams and horizontal connections of precast concrete shear walls, and the fundamental frequency exhibits a successively decreasing trend during the entire testing process. Furthermore, The MPCSW model is designed in accordance with Chinese codes meets the requirement for the seismic fortification intensity of eight, and shows an adequate safety margin to resist collapse in the case of 0.90 g.
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Zhou, Chao,Teng, Wen-Jing,Yang, Jing,Hu, Zhen-Bo,Wang, Cong-Cong,Qin, Bao-Ning,Lv, Qing-Liang,Liu, Ze-Wang,Sun, Chang-Gang Asian Pacific Journal of Cancer Prevention 2014 Asian Pacific journal of cancer prevention Vol.15 No.13
Background: Chronic myelocytic leukemia is a disease that threatens both adults and children. Great progress has been achieved in treatment but protein-protein interaction networks underlining chronic myelocytic leukemia are less known. Objective: To develop a protein-protein interaction network for chronic myelocytic leukemia based on gene expression and to predict biological pathways underlying molecular complexes in the network. Materials and Methods: Genes involved in chronic myelocytic leukemia were selected from OMIM database. Literature mining was performed by Agilent Literature Search plugin and a protein-protein interaction network of chronic myelocytic leukemia was established by Cytoscape. The molecular complexes in the network were detected by Clusterviz plugin and pathway enrichment of molecular complexes were performed by DAVID online. Results and Discussion: There are seventy-nine chronic myelocytic leukemia genes in the Mendelian Inheritance In Man Database. The protein-protein interaction network of chronic myelocytic leukemia contained 638 nodes, 1830 edges and perhaps 5 molecular complexes. Among them, complex 1 is involved in pathways that are related to cytokine secretion, cytokine-receptor binding, cytokine receptor signaling, while complex 3 is related to biological behavior of tumors which can provide the bioinformatic foundation for further understanding the mechanisms of chronic myelocytic leukemia.
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Rui Li,Gang Wang,Zheng‑Yong Wen,Yuan‑Chao Zou,Chuan‑Jie Qin,Yu Luo,Jun Wang,Gui‑Hong Chen 한국유전학회 2019 Genes & Genomics Vol.41 No.2
The snakehead fish, Channa siamensis, belongs to the genus of Channa (perciformes: Channidae) and was first reported by Günther in 1861. Despite it has been described approximately for 15 decades, the genetic information is limited and the taxon status of this kind of fish is still unclear. The primary objective of this study is to get more genomic data and calculate the taxon location of this kind of fish. The next generation sequencing method was used to obtain the whole mitochondrial DNA information, and bioinformatic analysis was performed to investigate the evolutionary status and taxon location of C. siamensis. The circular mitochondrial DNA was 16,570 bp in length, and which showed typical piscine structure and arrangement. The overall nucleotide composition was 29.28% A, 24.72% T, 30.71% C, 15.29% G, with 54.1% AT, respectively. Phylogenetic analyses using concatenated amino acid and nucleotide sequences of the 13 protein-coding genes with two different methods (Maximum likelihood and Bayesian analysis) both highly supported C. siamensis belongs to the genus Channa and shows a close relationship with C. micropeltes. These data will provide more useful information for a better understanding of the mitochondrial genomic diversities and evolution in fish as well as novel genetic markers for studying population genetics and species identification.
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The role of protein arginine-methyltransferase 1 in gliomagenesis
( Shan Wang ),( Xiao Chao Tan ),( Bin Yang ),( Bin Yin ),( Jian Gang Yuan ),( Bo Qin Qiang ),( Xiao Zhong Peng ) 생화학분자생물학회(구 한국생화학분자생물학회) 2012 BMB Reports Vol.45 No.8
Protein arginine methyltransferase 1 (PRMT1), a type-I arginine methyltransferase, has been implicated in diverse cellular events. We have focused on the role of PRMT1 in gliomagenesis. In this study, we showed that PRMT1 expression was up-regulated in glioma tissues and cell lines compared with normal brain tissues. The knock-down of PRMT1 resulted in an arrest in the G1-S phase of the cell cycle, proliferation inhibition and apoptosis induction in four glioma cell lines (T98G, U87MG, U251, and A172). Moreover, an in vivo study confirmed that the tumor growth in nude mouse xenografts was significantly decreased in the RNAi-PRMT1 group. Additionally, we found that the level of the asymmetric dimethylated modification of H4R3, a substrate of PRMT1, was higher in glioma cells than in normal brain tissues and decreased after PRMT1 knock-down. Our data suggest a potential role for PRMT1 as a novel biomarker of and therapeutic target in gliomas. [BMB Reports 2012; 45(8): 470-475]
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Ning-jun Du,Guo-liang Bai,Ya-zhou Xu,Chao-gang Qin 한국콘크리트학회 2017 International Journal of Concrete Structures and M Vol.11 No.3
Tubular reinforced concrete columns of air-cooling condenser structures, which undertake the most weight of air cooling equipment, are the major components to resist lateral forces under earthquake. Once collapsed, huge casualties and economic loss would be caused. Thus, four 1/8 scaled specimens were fabricated and tested through the pseudo-static testing method. Failure modes and crack patterns of the specimens under cyclic loading were observed. Then, finite element models of tubular reinforced concrete columns were established using OpenSees and were verified with the experimental results. Finally, the influence of axial compression ratio and longitudinal reinforcement on energy dissipation capacity and stiffness degradation were studied based on the validated finite element modes. It is confirmed that tubular reinforced concrete columns of air-cooling condenser structure exhibit a moderate ability of energy dissipation, and the nonlinear finite element model could reasonably simulate its seismic behavior. Furthermore, axial compression ratio and longitudinal reinforcement are main factors which affect the seismic behavior of the tubular reinforced concrete columns. The experimental results and simulation method provide an available way to design this kind of large tubular reinforced concrete columns with thin-wall.
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