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2篇 您的检索式:作者名="C.Cho"
    题名 作者 年代 出处 被引量
1Interplays of liver fibrosis-associated microRNAs:Molecular mechanisms and implications in diagnosis and therapy显示文摘microRNAs(miRNAs)are a class of non-coding functional small RNA composed of 21e23 nucleotides,having multiple associations with liver fibrosis.Fibrosis-associated miRNAs are roughly classified into pro-fibrosis or anti-fibrosis types.The former is capable of activating hepatic stellate cells(HSCs)by modulating pro-fibrotic signaling pathways,mainly including TGF-b/SMAD,WNT/b-catenin,and Hedgehog;the latter is responsible for maintenance of the quiescent phenotype of normal HSCs,phenotypic reversion of activated HSCs(aHSCs),inhibition of HSCs proliferation and suppression of the extracellular matrix-associated gene expression.Moreover,several miRNAs are involved in regulation of liver fibrosis via alternative mechanisms,such as interacting between hepatocytes and other liver cells via exosomes and increasing autophagy of aHSCs.Thus,understanding the role of these miRNAs may provide new avenues for the development of novel interventions against hepatic fibrosis.Hong Li Tingli Liu Yongchun Yang William C.Cho Robin J.Flynn Majid Fasihi Harandi Houhui Song Xuenong Luo Yadong Zheng 2023Genes & Diseases2023,10,4:1
2Thermal stress analysis method considering geometric effect of risers in sand mold casting process显示文摘Solidif ication and f luid f low analysis using computer simulation is a current common practice. There is also a high demand for thermal stress analysis in the casting process because casting engineers want to control the defects related to thermal stresses, such as large deformation and crack generation during casting. The riser system is an essential part of preventing the shrinkage defects in the casting process, and it has a great inf luence on thermal phenomena. The analysis domain is dramatically expanded by attaching the riser system to a casting product due to its large volume, and it makes FEM mesh generation diff icult. However, it is diff icult to study and solve the above proposed problem caused by riser system using traditional analysis methods which use single numerical method such as FEM or FDM. In this paper, some research information is presented on the effects of the riser system on thermal stress analysis using a FDM/FEM hybrid method in the casting process simulation. The results show the optimal conditions for stress analysis of the riser model in order to save computation time and memory resources.S.Y.Kwak H.Y.Hwang C.Cho 2014China Foundry2014,11,6:1
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