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| 1 | Numerical study on the evolution of the shock-accelerated SF_6 interface:Influence of the interface shape显示文摘The early phases of the shock interaction process on two-dimensional interfaces with different shapes are numerically investigated in this study,which are closely related to the shock refraction and reflection,vorticity production and transport.The numerical method employs an adaptive unstructured quadrilateral mesh,which can capture the wave pattern and interface evolution very well.Simulations are carried out under the conditions of an incident shock Mach number of 1.2 and the light/heavy (air/SF 6) interface.Five different shapes are considered in the simulations:rectangle,ellipse,diamond and two kinds of triangle.The results show that the interfacial shapes can influence the wave patterns particularly on the shape and evolution of refracted shock waves.The generation and the distribution of vorticity on the interfaces with five different shapes also have dissimilarities.The circulation deposition on five interfaces is quantitatively investigated and compared with theoretical model.A good agreement is found between the numerical results and the predictions by the theoretical model.Some characteristic scales of the interface are tracked.Under the influence of nonlinear-acoustic effect and vorticity effect,the interfaces present different evolution modes. | FAN MeiRu ZHAI ZhiGang SI Ting LUO XiSheng ZOU LiYong TAN DuoWang | 2012 | Science China(Physics,Mechanics & Astronomy)2012，55，2： | 4 |
| 2 | Metabolic profile of chiral cobalt oxide nanoparticles in vitro and in vivo显示文摘In this study,we investigated the in vivo behaviors of chiral cobalt oxide nanoparticles(Co_(3)O_(4) NPs)stabilized with D-or L-cysteine(denoted D-or L-NPs,respectively),as representative chiral metal oxide NPs.Chiral Co_(3)O_(4) NPs exerted no observable cytotoxicity within the tested dose range.Both D-NPs and L-NPs were internalized by dendritic cells through caveola-dependent endocytosis,and L-NPs entered the cells faster than D-NPs.Significantly,a metabolic analysis indicated that chiral L-NPs had the same effect on the level of bile acids in the liver as D-NPs,which is attributed to the almost equal amount of farnesoid X receptor(FXR)induced by the chiral NPs.This study suggests that low chiroptical activity nanomaterials would not affect the metabolism and kinetics under physiological conditions even if there is some difference in their transport. | Si Li Liwei Xu Meiru Lu Maozhong Sun Liguang Xu Changlong Hao Xiaoling Wu Chuanlai Xu Hua Kuang | 2021 | Nano Research2021，14，7： | 0 |
| 3 | 细菌六型分泌系统利用一个受氧化还原调节的双功能血红素转运蛋白获取锌显示文摘文章简介在病原细菌与宿主的斗争过程中,宿主可通过利用营养免疫机制限制入侵病原菌获取生长必需的铁、锌、锰等元素,从而抑制病原细菌生长;与之相对应,病原细菌也进化出一系列精细的手段对抗宿主的营养免疫而获取相应元素。 | Meiru Si Yao Wang Bing Zhang Chao Zhao Yiwen Kang Haonan Bai Dawei Wei Lingfang Zhu Lei Zhang Tao G.Dong 沈锡辉 | 2018 | 科学新闻2018，0，4： | 0 |
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