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| 1 | Speciation of iron in atmospheric particulate matter by EXAFS显示文摘The study on elemental speciation in atmospheric particulate matter (PM) is important for understanding the formation and origin of pollution and evaluating their toxicity. In this paper,the speci- ation of iron in atmospheric PM was investigated with extended X-ray absorption fine structure (EXAFS) spectra based on synchrotron radiation. The chemi- cal components of PM can be calculated by regres- sion analysis of EXAFS spectra. This is a non-destructive method. In order to have knowledge of the influence of chemical components on EXAFS spectra,we prepared a series of mixed reference samples,and proved the precision of method is good. The PM samples with different particle sizes and from different sampling sites were collected in Shanghai,China. The chemical components of the samples were calculated by regression analysis of EXAFS spectra. The results show that the iron in all PM samples mainly consist of Fe2O3,Fe3O4 and Fe2(SO4)3,but their proportions are different in dif- ferent samples. The changes of components among PM samples were observed preliminarily. The con- centrations of iron in the samples were determined by proton-induced X-ray emission (PIXE) technique. It is observed that the concentrations of iron in the sam- ples of iron and steel industrial district were much higher than those of other districts,and chemical components were also different from those of others. | WANG Yinsong LI Aiguo ZHANG Yuanxun XIE Yaning LI Delu LI Yan ZHANG Guilin | 2006 | Chinese Science Bulletin2006，51，18： | 5 |
| 2 | Preparation and characteristics of flexible all-organic thin-film field-effect transistor显示文摘All-organic thin-film field-effect transistor was prepared on flexible poly(ethylene-terephthalate) (PET) substrate. Poly(methyl-methacrylate) (PMMA) and pentacene are used as a dielectric layer and a semiconductor layer, respectively. The hole mobility of the transistor can reach 2.10×10-2 cm2/Vs, and the on/off current ratio was larger than 105. The performances of the transistor, when the substrate is cured under different radius, were also measured. It was found that the device performance did not change when the curly direction was vertical to the channel length direction and when the curly direction was parallel to the channel length direction with 3.67 cm curvature radius, the mobility of the device increased by more than 20% and the on/off ratio decreased more than one order. | QIU Yong, HU Yuanchuan, Dong Guifang, WANG Liduo, Xie Junfeng & MA Yaning Organic Optoelectronic Laboratory,Department of Chemistry, Tsinghua University, Beijing 100084, China (e-mail: qiuy@mail.Tsinghua.edu.cn) | 2003 | Chinese Science Bulletin2003，48，15： | 5 |
| 3 | Effects of metal cations on sorption-desorption of p-nitrophenol onto wheat ash显示文摘The mutual effects of metal cations(Cu2+,Pb2+,Zn2+,and Cd2+) and p-nitrophenol(NP) on their adsorption desorption behavior onto wheat ash were studied.Results suggested that Cu2+,Pb2+,and Zn2+ diminished the adsorption and increased the desorption of NP remarkably,while Cd2+ had no such effect.In contrast,NP diminished the adsorption of Cu2+,Pb2+,and Zn2+ onto ash,however,this suppression effect depended on the initial concentrations of metal cations.NP had no effect on Cd2+ adsorption on ash.Fourier transform infrared(FT-IR) and X-ray absorption spectroscopic(XAS) studies suggested the following mechanisms responsible for the metal suppression effect on NP adsorption:(1) large hydrated Cu2+,Pb2+,and Zn2+ shells occupied the surface of ash and prevent nonspecific adsorption of NP onto ash surface;(2) Cu2+,Pb2+,and Zn2+ may block the micropores of ash,resulting in decreased adsorption of NP;(3) complexation of Cu2+,Pb2+,and Zn2+ was likely via carboxyl,hydroxylic and phenolic groups of wheat ash and these same groups may also react with NP during adsorption.As a 'soft acid',Cd2+ is less effcient in the complexation of oxygencontaining acid groups than Cu2+,Pb2+,and Zn2+.Thus,Cd2+ had no effect on the adsorption of NP on wheat ash. | YushengWang Zhiguo Pei Xiaoquan Shan Guangcai Chen Jing Zhang Yaning Xie Lirong Zheng | 2011 | Journal of Environmental Sciences2011，23，1： | 5 |
| 4 | Engineered trimeric ACE2 binds viral spike protein and locks it in'Thfee-up'conformation to potently inhibit SARS-CoV-2 infection显示文摘Dear Editor,Coronavirus disease 2019(COVID-19)caused by severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)has resulted in a severe global pandemic Following SARS-CoV,SARS-CoV-2 is yet another emerge nt beta-coronavirus threate ning human health.1 However,seventeen years after the SARS pandemic,no targeted vaccines or therapeutics have been approved for SARS,while some of them might have held promise for treating COVID-19.Many neutralizing antibodies against SARS-CoV-2 are currently being developed.However,RNA viruses are known to have high mutation rates. | Liang Guo Wenwen Bi Xinling Wang Wei Xu Renhong Yan Yuanyuan Zhang Kai Zhao Yaning Li Mingfeng Zhang Xia Cai Shibo Jiang Youhua Xie Qiang Zhou Lu Lu Bobo Dang | 2021 | Cell Research2021，31，1： | 5 |
| 5 | The structure of erastin-bound xCT-4F2hc complex reveals molecular mechanisms underlying erastin-induced ferroptosis显示文摘Dear Editor,Ferroptosis is an iron-dependent,non-apoptotic form of regulated cell death characterized by an accumulation of lipid.derived reactive oxygen species(ROS).The small-molecule compo und erastin in duces ferroptosis via in hibiti ng the cystineglutamate antiporter system x_(c).which consists of two subunits,namely the light chain xCT and the heavy chain 4F2hc(encoded by the SLC7A11 and SLC3A2 genes,respectively).^(1-4) | Renhong Yan Enjun Xie Yaning Li Jin Li Yuanyuan Zhang Ximin Chi Xueping Hu Lei xu Tingjun Hou Brent R.Stockwell Junxia Min Qiang Zhou Fudi Wang | 2022 | Cell Research2022，32，7： | 4 |
| 6 | Biomarkers of aging显示文摘Aging biomarkers are a combination of biological parameters to(i)assess age-related changes,(ii)track the physiological aging process,and(iii)predict the transition into a pathological status.Although a broad spectrum of aging biomarkers has been developed,their potential uses and limitations remain poorly characterized.An immediate goal of biomarkers is to help us answer the following three fundamental questions in aging research:How old are we?Why do we get old?And how can we age slower?This review aims to address this need.Here,we summarize our current knowledge of biomarkers developed for cellular,organ,and organismal levels of aging,comprising six pillars:physiological characteristics,medical imaging,histological features,cellular alterations,molecular changes,and secretory factors.To fulfill all these requisites,we propose that aging biomarkers should qualify for being specific,systemic,and clinically relevant. | Aging Biomarker Consortium Hainan Bao Jiani Cao Mengting Chen Min Chen Wei Chen Xiao Chen Yanhao Chen Yu Chen Yutian Chen Zhiyang Chen Jagadish K Chhetri Yingjie Ding Junlin Feng Jun Guo Mengmeng Guo Chuting He Yujuan Jia Haiping Jiang Ying Jing Dingfeng Li Jiaming Li Jingyi Li Qinhao Liang Rui Liang Feng Liu Xiaoqian Liu Zuojun Liu Oscar Junhong Luo Jianwei Lv Jingyi Ma Kehang Mao Jiawei Nie Xinhua Qiao Xinpei Sun Xiaoqiang Tang Jianfang Wang Qiaoran Wang Siyuan Wang Xuan Wang Yaning Wang Yuhan Wang Rimo Wu Kai Xia Fu-Hui Xiao Lingyan Xu Yingying Xu Haoteng Yan Liang Yang Ruici Yang Yuanxin Yang Yilin Ying Le Zhang Weiwei Zhang Wenwan Zhang Xing Zhang Zhuo Zhang Min Zhou Rui Zhou Qingchen Zhu Zhengmao Zhu Feng Cao Zhongwei Cao Piu Chan Chang Chen Guobing Chen Hou-Zao Chen Jun Chen Weimin Ci Bi-Sen Ding Qiurong Ding Feng Gao Jing-Dong JHan Kai Huang Zhenyu Ju Qing-Peng Kong Ji Li Jian Li Xin Li Baohua Liu Feng Liu Lin Liu Qiang Liu Qiang Liu Xingguo Liu Yong Liu Xianghang Luo Shuai Ma Xinran Ma Zhiyong Mao Jing Nie Yaojin Peng Jing Qu Jie Ren Ruibao Ren Moshi Song Zhou Songyang Yi Eve Sun Yu Sun Mei Tian Shusen Wang Si Wang Xia Wang Xiaoning Wang Yan-Jiang Wang Yunfang Wang Catherine CL Wong Andy Peng Xiang Yichuan Xiao Zhengwei Xie Daichao Xu Jing Ye Rui Yue Cuntai Zhang Hongbo Zhang Liang Zhang Weiqi Zhang Yong Zhang Yun-Wu Zhang Zhuohua Zhang Tongbiao Zhao Yuzheng Zhao Dahai Zhu Weiguo Zou Gang Pei Guang-Hui Liu | 2023 | Science China(Life Sciences)2023，66，5： | 2 |
| 7 | Multifunctional hydrotalcite-derived K/MnMgAlO catalysts used for soot combustion, NOx storage and simultaneous soot–NOx removal显示文摘 | Qian Li Ming Meng Fangfang Dai Yuqing Zha Yaning Xie Tiandou Hu Jing Zhang | 2012 | Chemical Engineering Journal2012，，： | 1 |
| 8 | Asymptotics for generalized esti- mating equations with large cluster size 显示文摘 | Minge Xie Yaning Yang | 2003 | The Annals of Statistics2003，31，1： | 1 |
| 9 | Prediction of water table depths under soil water-groundwater interaction and stream water conveyance显示文摘Water table over an arid region can be elevated to a critical level to sustain terrestrial ecosystem along the natural channel by the stream water conveyance. Estimation of water table depth and soil moisture on river channel profile may be reduced to a two-dimensional moving boundary problem with soil water-groundwater interaction. The two-dimensional soil water flow with stream water transferred is divided into an unsaturated vertical soil water flow and a horizontal groundwater flow. Therefore, a prediction model scheme for water table depths under the interaction between soil water and groundwater with stream water transferred is presented, which includes a vertical soil water movement model, a horizontal groundwater movement model, and an interface model. The synthetic experiments are conducted to test the sensitivities of the river elevation, horizontal conductivity, and surface flux, and the results from the experiments show the robustness of the proposed scheme under different conditions. The groundwater horizontal conductivity of the proposed scheme is also calibrated by SCE-UA method and validated by data collected at the Yingsu section in the lower reaches of the Tarim River, which shows that the model can reasonably simulate the water table depths. | DI ZhenHua XIE ZhengHui YUAN Xing TIAN XiangJun LUO ZhenDong CHEN YaNing | 2011 | Science China Earth Sciences2011，54，3： | 1 |
| 10 | Performance of Ce substituted hydrotalcite-derived mixed oxide catalysts Co 2.5 Mg 0.5 Al 1<ce:hsp sp='0.12'/>?<ce:hsp sp='0.12'/> x % Ce x % O used for soot combustion and simultaneous NO x -soot removal显示文摘 | Fangfang Dai Ming Meng Yuqing Zha Zhaoqiang Li Tiandou Hu Yaning Xie Jing Zhang | 2012 | Fuel Processing Technology2012，，： | 1 |
| 11 | NO reduction with NH 3 over an activated carbon-supported copper oxide catalysts at low temperatures显示文摘 | Zhenping Zhu Zhenyu Liu Shoujun Liu Hongxian Niu Tiandon Hu Tao Liu Yaning Xie | 2000 | Applied Catalysis B, Environmental2000，，1： | 1 |
| 12 | Relations between regional cerebral blood flow (rCISF) and Wisconsin Card Sorting Test (WCST) in negative schizophrenia显示文摘 | Zhening Liu Wai-Cheong Carl Tam Yaning Xie | 2002 | Psychiatry and Clinical Neurosciences2002，56，1： | 1 |
| 13 | Selective catalytic reduction of NO with NH3 over iron titanate catalyst: catalytic performance and characterization 显示文摘 | Liu Fudong He Hong Zhang Changbin Feng Zhaochi Zheng Lirong Xie Yaning Hu Tiandou | 2010 | Applied CatalysisB: Environmental2010，96，34： | 1 |
| 14 | Organic acids enhance the uptake of lead by wheat roots显示文摘 | Huanhua Wang Xiaoquan Shan Tao Liu Yaning Xie Bei Wen Shuzhen Zhang Fang Han Martinus Th. Genuchten | 2007 | Planta2007，，6： | 1 |
| 15 | Performance of K-promoted hydrotalcite-derived CoMgAlO catalysts used for soot combustion, NOx storage and simultaneous soot–NOx removal显示文摘 | Qian Li Ming Meng Noritatsu Tsubaki Xingang Li Zhaoqiang Li Yaning Xie Tiandou Hu Jing Zhang | 2009 | Applied Catalysis B, Environmental2009，，1： | 1 |
| 16 | Environmental Science & Technology 显示文摘 | Pei Zhiguo Shah Xiaoquan Wen Bei He Bo Liu Tao Xie Yaning Owens Gary | 2008 | 42(18): 6849-68542008，42，18： | 1 |
| 17 | Application of a combined system of polycapillary X-ray lens and toroidal mirror in micro-X-ray- absorption-fine-structure faeility显示文摘 | SUN Tianxi XIE Yaning LIU Zhiguo | 2006 | J Appl Phys2006，99，09： | 1 |
| 18 | Multi-technique characterizations of main elements in the vehicle exhaust particles collected in a tunnel in Shnaghai显示文摘In this study,vehicle exhaust particles were collected three locations (the middle,entrance and outside) of the Dapu Road tunnel in downtown Shanghai,and the particle samples were characterized using SEM,XAFS,ICP-MS and M?ssbauer spectrometry,and the oxidative damage was assessed by plasmid DNA.Most iron-containing particles are found from vehicle exhaust,and iron oxide is the major species in all samples.Its concentration in the particles inside the tunnel is higher than that the outside particles.The iron particles inside the tunnel have higher proportion of water-soluble fraction in hydrous iron sulfate form or smaller size.ZnCl2 is the main soluble fraction in zinc-containing particles,while higher percentage of insoluble fraction existed in the particles outside of tunnel.Major species of lead-containing particles are PbSO4,Pb3(PO4)2 and PbCO3.In addition,the soluble fraction of other transition metallic elements as Ti and V is higher in the particles inside the tunnel than that outside the tunnel.The plasmid DNA assay results indicate that the particles from vehicle exhaust have a stronger oxidative damage and inflammation than that from outside of the tunnel. | JIN Chan FAN Xiaoyan LI Yan LIANG Feng LI Yulan ZOU Yang YANG Yongji XIE Yaning | 2011 | Nuclear Science and Techniques2011，22，4： | 0 |
| 19 | A Fourth-Order Kernel-Free Boundary Integral Method for Interface Problems显示文摘This paper presents a fourth-order Cartesian grid based boundary integral method(BIM)for heterogeneous interface problems in two and three dimensional space,where the problem interfaces are irregular and can be explicitly given by parametric curves or implicitly defined by level set functions.The method reformulates the governing equation with interface conditions into boundary integral equations(BIEs)and reinterprets the involved integrals as solutions to some simple interface problems in an extended regular region.Solution of the simple equivalent interface problems for integral evaluation relies on a fourth-order finite difference method with an FFT-based fast elliptic solver.The structure of the coefficient matrix is preserved even with the existence of the interface.In the whole calculation process,analytical expressions of Green’s functions are never determined,formulated or computed.This is the novelty of the proposed kernel-free boundary integral(KFBI)method.Numerical experiments in both two and three dimensions are shown to demonstrate the algorithm efficiency and solution accuracy even for problems with a large diffusion coefficient ratio. | Yaning Xie Shuwang Li Wenjun Ying | 2023 | Communications in Computational Physics2023，33，3： | 0 |
| 20 | First Performance Test at BEPC X-Ray Absorption Fine Structure Station显示文摘The foundation of the first synchrotron radiation x-ray absorption fine structure(XAFS)station in China has been completed and the station was ready for transmission XAFS experiment.This paper reports the first XAFS spectrum recorded in this station and the result of performance test centered on the intensity,energy dispersion and energy accuracy of the beam line in this station. | QIAO Shan HAI Yang XIE Yaning HU Tiandou | 1992 | Chinese Physics Letters1992，9，4： | 0 |
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