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57篇 您的检索式:作者名="Yanzhao Li"
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1GPS-constrained inversion of present-day slip rates along major faults of the Sichuan-Yunnan region, China显示文摘A linked-fault-element model is employed to invert for contemporary slip rates along major active faults in the Sichuan-Yunnan region (96°-108°E, 21°-35°N) using the least squares method. The model is based on known fault geometry, and constrained by a GPS-derived horizontal velocity field. Our results support a model attributing the eastward extrusion of the Tibetan Plateau driven mainly by the north-northeastward indentation of the Indian plate into Tibet and the gravitational collapse of the plateau. Resisted by a relatively stable south China block, materials of the Sichuan-Yunnan region rotate clockwise around the eastern Himalayan tectonic syntaxis. During the process the Garzê-Yushu, Xianshuihe, Anninghe, Zemuhe, Daliangshan, and Xiaojiang faults, the southwest extension of the Xiaojiang fault, and the Daluo-Jinghong and Mae Chan faults constitute the northeast and east boundaries of the eastward extrusion, with their left slip rates being 0.3-14.7, 8.9-17.1, 5.1 ± 2.5, 2.8 ± 2.3, 7.1 ± 2.1, 9.4 ± 1.2, 10.1 ± 2.0, 7.3 ± 2.6, and 4.9 ± 3.0 mm/a respectively. The southwestern boundary consists of a widely distributed dextral transpressional zone other than a single fault. Right slip rates of 4.2 ± 1.3, 4.3 ± 1.1, and 8.5 ± 1.7 mm/a are detected across the Nanhua-Chuxiong-Jianshui, Wuliangshan, and Longling-Lancang faults. Crustal deformation across the Longmenshan fault is weak, with short-ening rates of 1.4 ± 1.0 and 1.6 ± 1.3 mm/a across the Baoxing-Beichuan and Beichuan-Qingchuan segments. Northwest of the Longmenshan fault lies an active deformation zone (the Longriba fault) with 5.1±1.2 mm/a right slip across. Relatively large slip rates are detected across a few faults within the Sichuan-Yunnan block: 4.4±1.3 mm/a left slip and 2.7±1.1 mm/a shortening across the Litang fault, and 2.7±2.3 mm/a right-lateral shearing and 6.7±2.3 mm/a shortening across the Yunongxi fault and its surrounding regions. In conclusion, we find that the Sichuan-Yunnan region is divided into more than a dozen active micro-blocks by a large number of faults with relatively slow slip rates. The eastward extrusion of the Tibetan Plateau is absorbed and adjusted in the region mainly by these faults, other than a small number of large strike-slip faults with fast slip rates.WANG YanZhao WANG EnNing SHEN ZhengKang WANG Min GAN WeiJun QIAO XueJun MENG GuoJie LI TieMing TAO Wei YANG YongLin CHENG Jia LI Peng 2008Science China Earth Sciences2008,51,9:65
2Deep structure beneath the southwestern section of the Longmenshan fault zone and seimogenetic context of the 4.20 Lushan M_S7.0 earthquake显示文摘Magnetotelluric measurements were carried out along two profiles across the middle and southwestern sections of the Longmenshan fault zone(LMSf)from 2009 to 2011,after the 2008 Wenchuan MW7.9 earthquake.The former profile crosses the Wenchuan event epicenter and the latter one crosses 2013 Lushan MS7.0 event epicenter.The data were analyzed using advanced processing techniques,including phase tensor and two-dimensional inversion methods,in order to obtain reliable 2-D profiles of the electrical structure in the vicinity of the two earthquakes.A comparison of the two profiles indicates both similarities and differences in the deep crustal structure of the LMSf.West of the southwestern section,a crustal high conductivity layer(HCL)is present at about 10 km depth below the Songpan-Garzêblock;this is about 10 km shallower than that under the middle section of the LMSf.A high resistivity body(HRB)is observed beneath the southwestern section,extending from the near surface to the top of upper mantle.It has a smaller size than the HRB observed below the middle section.In the middle section,there is a local area of decreased resistivity within the HRB but there is absence of this area.The 2013 Lushan earthquake occurred close to the eastern boundary of HRB and the Shuangshi-Dachuan fault,of which the seismogenic context has both common and different features in comparison with the 2008 Wenchuan event.On a large scale,the 2013 Lushan earthquake is associated with the HCL and deformation in the crust including HCL of the eastern Tibetan Plateau.In order to assess seismic risk,it is important to consider both the stress state and the detailed crustal structure in different parts of the LMSf.ZHAN Yan ZHAO GuoZe UNSWORTH Martyn WANG LiFeng CHEN XiaoBin LI Tao XIAO QiBin WANG JiJun TANG Ji CAI JunTao WANG YanZhao 2013Chinese Science Bulletin2013,58,28:39
3Far-field coseismic displacements associated with the 2011 Tohoku-oki earthquake in Japan observed by Global Positioning System显示文摘Analysis of GEONET observations covering the entire territory of Japan shows that the great Tohoku-oki earthquake that occurred on March 11, 2011 off the east coast of Honshu in Japan caused an eastward movement of the northern part of the island by as much as 5.3 m. The GPS data from TEONET in China were used to derive far-field coseismic displacements and to assess the impact of the Tohoku-oki earthquake on crustal deformation in eastern China. The results reveal that the coseismic horizontal displacements induced by the earthquake are the level of millimeters to centimeters in North and Northeast China, with a maximum of 35 mm. Strain analysis also indicates that the earthquake resulted in an increase in the tensile strain on the north-northeast trending faults in North and Northeast China. The tensile strain imposed on the Yilan-Yitong and Dunhua-Mishan faults is more significant than that imposed on the faults in North China; the maximum normal strain reaches about 40 nano-strain. Considering that the static Coulomb stress loaded on the faults is limited, its effect on the regional seismic activity may not be significant.WANG Min LI Qiang WANG Fan ZHANG Rui WANG YanZhao SHI HongBo ZHANG PeiZhen SHEN ZhengKang 2011Chinese Science Bulletin2011,56,23:34
4Rubber plantation and its relationship with topographical factors in the border region of China, Laos and Myanmar显示文摘橡胶种植园是在东南亚洲的主要陆地使用类型。监视橡胶种植园的空间时间的模式为地区性的陆地资源开发, eco 环境的保护,和维持的边阶安全是重要的。与遥感技术,我们分析了橡胶分发模式并且空间时间动态;与 GIS 和种的紧张(PI ) 的一个最新建议的索引一起,我们进一步确定了在在 1980 和 2010 之间的中国,老挝和 Myanmar (BRCLM ) 的边阶区域的橡胶种植园上的地形学的因素的影响和限制。结果显示出那:(1 ) 作为在这的主导的陆地使用类型毗邻区域,橡胶种植园的面积是在 2010 的 6014 km2,为 8.17% 全部的区域的财务。从橡胶种植园结构看,比率成熟 --(10 年) 并且年轻橡胶种植园(< 10 年) 是 5:7。(2 ) 从 1980 ~ 2010,在 BRCLM 显著地扩展的橡胶种植园,从 705 km2 到 6014 km2,将近九次。橡胶种植园的分发特征变化了从专注向分散,从在内的边阶到外面,并且作为中心与 Jinghong 城市在所有方向进一步膨胀了。(3 ) 由地形学的因素限制了,多于在在 600 和 1000 m 之间的适当举起坡度集中的橡胶种植园的 4/5 比例,很少在 BRCLM 在 1200 m 以外发生在举起。将近橡胶种植园的 2/3 专注于 8 的斜坡吗?LIU xiaona FENG Zhiming JIANG Luguang LI Peng LIAO Chenhua YANG Yanzhao YOU Zhen 2013Journal of Geographical Sciences2013,23,6:17
5High-Chern-number and high-temperature quantum Hall effect without Landau levels显示文摘The quantum Hall effect(QHE)with quantized Hall resistance ofh/ve2 started the research on topological quantum states and laid the foundation of topology in physics.Since then,Haldane proposed the QHE without Landau levels,showing nonzero Chern number|C|=1,which has been experimentally observed at relatively low temperatures.For emerging physics and low-power-consumption electronics;the key issues are how to increase the working temperature and realize high Chern numbers(C>1).Here,we report the experimental discovery of high-Chern-number QHE(C=2)without Landau levels and C=1 Chern insulator state displaying a nearly quantized Hall resistance plateau above the Neel temperature in MnBi2Te4 devices.Our observations provide a new perspective on topological matter and open new avenues for exploration of exotic topological quantum states and topological phase transitions at higher temperatures.Jun Ge Yanzhao Liu Jiaheng Li Hao Li Tianchuang Luo Yang Wu Yong Xu Jian Wang 2020National Science Review2020,7,8:10
6The past, present, and future of population geography in China:Progress, challenges and opportunities显示文摘人口地理(PopGeo ) 人的地理的一个学科的分支,应该很好考虑到它的国家人口在中国被开发了尺寸和唯一的人口统计的问题,地区性的社会经济的发展,和生物物理的差别。然而,它典型地落后于它的父母学科,特别人口统计学和地理的发展。明确地,在中国高等教育的 PopGeo 以纪律开发的三个主要方面仍然在底层:为高等教育,学术会议,和杂志的学术学生。在中国的 PopGeo 的研究内容在中央空间、宏空间的规模集中了于人口的生长,作文,变化,分发,和带的能力。作为在世界上的大多数占据土地,在人口安定并且移居到的地方,关于人口怎么并且为什么,并且怎么指导人口物质的健全开发到社会和经济变化询问,它的最大的带能力,总是是在在中国的 PopGeo 研究的重要话题。相反,一些新人口现象象人的时空行为那样(变换,汇款,和朋友相互作用) ,在在国外的科学界流行,充分没被调查在微水平。一会儿,因为富饶政策和国家新都市化计划的实现的调整,在中国的 PopGeo 可以在国家水平面对挑战和机会。是这个场合自从 1980 年代,要求 PopGeo 的开发的最先进的评论,越来越多的 PopGeo 的转弯的点在中国学习。我们试图在中国揭示 PopGeo 的当前的地位到世界,并且使它的进一步的学习清楚些。FENG Zhiming LI Fangzhou YANG Yanzhao LI Peng 2017Journal of Geographical Sciences2017,27,8:8
7Tensor force effect on proton shell structure in neutron-rich Ca isotopes显示文摘In the framework of the Skyrme-Hartree-Fock approach with 36 sets of the TI J parameterizations,the tensor force effect on the evolution of the single-proton states in the calcium isotopes is systematically investigated.It is shown that the single-proton states with higher angular momenta are influenced significantly by the tensor force and the trend in the evolution of somesingle-particle energy differences with the mass number of the isotopes depends sensitively on a parameter βT associated with the intensity of the tensor force.To understand this phenomenon,we analyze the spin-orbit potentials and the radial wave functions of relevant single-proton orbits in detail.In addition,it is found that some TI J interactions could cause the 2s1/21d3/2 energy level inversion in 48Ca.LI ZhenYu WANG YanZhao YU GuoLiang GU JianZhong 2013Science China(Physics,Mechanics & Astronomy)2013,56,9:7
8High-resolution, full-color quantum dot light-emitting diode display fabricated via photolithography approach显示文摘Displays play an extremely important role in modern information society,which creates a never-ending demand for the new and better products and technologies.The latest requirements for novel display technologies focus on high resolution and high color gamut.Among emerging technologies that include organic light-emitting diode(OL ED),micro light-emiting diode(micro-LED),quantum dot light-emitting diode(QLED),laser display,holographic display and others,QLED is promising owing to its intrinsic high color gamut and the possibility to achieve high resolution with photolithography approach.However,previously demonstrated photolthography techniques suffer from reduced device performance and color Impurities in subpixels from the process.In this study,we demonstrated a sacrificial layer assisted patterming(SLAP)approach,which can be applied in conjunction with photolithography to fabricate high-resolution,full-colo quantum dot(QD)patterns.In this approach,the negative photoresist(PR)and sacrificial layer(SL)were uilized to determine the pixels for QD deposition,while at the same time the SL helps protect the QD layer and keep it intact(named PR-SL approach).To prove this method's viability for QLED display manufacture,a 500-ppi,full-color passive matrix(PM)-QLED prototype was fabricated via this process.Results show that there were no color impurities in the subpixels,and the PM-QL ED has a high color gamut of 114%National Television Standards Committee(NTSC).To the best of our knowledge,this is the first ull-olor QLED prototype with such a high resolution.We anticipate that this innovative patteming technique will open a new horizon for future display technologies and may lead to a disruptive and innovative change in display industry.Wenhai Mei Zhenqi Zhang Aidi Zhang Dong Li Xiaoyuan Zhang Haowei Wang Zhuo Chen Yanzhao Li Xinguo Li Xiaoguang Xu 2020Nano Research2020,13,9:6
9Construction of a small-caliber tissue-engineered blood vessel using icariin-loaded β-cyclodextrin sulfate for in situ anticoagulation and endothelialization显示文摘The rapid endothelialization of tissue-engineered blood vessels(TEBVs) can effectively prevent thrombosis and inhibit intimal hyperplasia. The traditional Chinese medicine ingredient icariin is highly promising for the treatment of cardiovascular diseases.β-cyclodextrin sulfate is a type of hollow molecule that has good biocompatibility and anticoagulation properties and exhibits a sustained release of icariin. We studied whether icariin-loaded β-cyclodextrin sulfate can promote the endothelialization of TEBVs. The experimental results showed that icariin could significantly promote the proliferation and migration of endothelial progenitor cells; at the same time, icariin could promote the migration of rat vascular endothelial cells(RAVECs). Subsequently,we used an electrostatic force to modify the surface of the TEBVs with icariin-loaded β-cyclodextrin sulfate, and these vessels were implanted into the rat common carotid artery. After 3 months, micro-CT results showed that the TEBVs modified using icariin-loaded β-cyclodextrin sulfate had a greater patency rate. Scanning electron microscopy(SEM) and CD31 immunofluorescence results showed a better degree of endothelialization. Taken together, icariin-loaded β-cyclodextrin sulfate can achieve anticoagulation and rapid endothelialization of TEBVs to ensure their long-term patency.Jingyuan Yang Keyu Wei Yeqin Wang Yanzhao Li Ning Ding Da Huo Tianran Wang Guanyuan Yang Mingcan Yang Tan Ju Wen Zeng Chuhong Zhu 2018Science China(Life Sciences)2018,61,10:5
10An enrichment model using regular health examination data for early detection of colorectal cancer显示文摘Objective: Challenges remain in current practices of colorectal cancer(CRC) screening, such as low compliance,low specificities and expensive cost. This study aimed to identify high-risk groups for CRC from the general population using regular health examination data.Methods: The study population consist of more than 7,000 CRC cases and more than 140,000 controls. Using regular health examination data, a model detecting CRC cases was derived by the classification and regression trees(CART) algorithm. Receiver operating characteristic(ROC) curve was applied to evaluate the performance of models. The robustness and generalization of the CART model were validated by independent datasets. In addition, the effectiveness of CART-based screening was compared with stool-based screening.Results: After data quality control, 4,647 CRC cases and 133,898 controls free of colorectal neoplasms were used for downstream analysis. The final CART model based on four biomarkers(age, albumin, hematocrit and percent lymphocytes) was constructed. In the test set, the area under ROC curve(AUC) of the CART model was 0.88 [95%confidence interval(95% CI), 0.87-0.90] for detecting CRC. At the cutoff yielding 99.0% specificity, this model’s sensitivity was 62.2%(95% CI, 58.1%-66.2%), thereby achieving a 63-fold enrichment of CRC cases. We validated the robustness of the method across subsets of test set with diverse CRC incidences, aging rates, genders ratio, distributions of tumor stages and locations, and data sources. Importantly, CART-based screening had the higher positive predictive value(1.6%) than fecal immunochemical test(0.3%).Conclusions: As an alternative approach for the early detection of CRC, this study provides a low-cost method using regular health examination data to identify high-risk individuals for CRC for further examinations. The approach can promote early detection of CRC especially in developing countries such as China, where annual health examination is popular but regular CRC-specific screening is rare.Qiang Shi Zhaoya Gao Pengze Wu Fanxiu Heng Fuming Lei Yanzhao Wang Qingkun Gao Qingmin Zeng Pengfei Niu Cheng Li Jin Gu 2019Chinese Journal of Cancer Research2019,31,4:3
11UWB positioning enhancement using Markov chain in indoor NLOS environment显示文摘The accuracy of the positioning system in indoor environment is often affected by none-line-of-sight(NLOS) propagation. In order to improve the positioning accuracy in indoor NLOS environment, a method used ultra-wide-band(UWB) technology, which based on time of arrival(TOA) principle, combining Markov chain and fingerprint matching was proposed. First, the TOA algorithm is used to locate the target tag. Then the Markov chain is used to identify if blocking happened and revise the position result. And the fingerprint matching is used to further improve the position accuracy. Finally, an experiment system was built to test the accuracy of the proposed method and the traditional Kalman filter method. The experimental results show that, compared with the traditional Kalman filter method, the proposed method can improve the positioning accuracy in indoor NLOS environment.Li Shaoxian Lii Fan Wang Chengrui Hou Yanzhao 2020The Journal of China Universities of Posts and Telecommunications2020,27,4:3
12The U-box ubiquitin ligase TUD1 promotes brassinosteroid-induced GSK2 degradation in rice显示文摘Brassinosteroids(BRs)are a class of steroid hormones with great potential for use in crop improvement.De-repression is usually one of the key events in hormone signaling.However,how the stability of GSK2,the central negative regulator of BR signaling in rice(Oryza sativa),is regulated by BRs remains elusive.Here,we identify the U-box ubiquitin ligase TUD1 as a GSK2-interacting protein by yeast two-hybrid screening.We show that TUD1 is able to directly interact with GSK2 and ubiquitinate the protein.Phenotypes of the tud1 mutant are highly similar to those of plants with constitutively activated GSK2.Consistent with this finding,GSK2 protein accumulates in the tud1 mutant compared with the wild type.In addition,inhibition of BR synthesis promotes GSK2 accumulation and suppresses TUD1 stability.By contrast,BRs can induce GSK2 degradation but promote TUD1 accumulation.Furthermore,the GSK2 degradation process is largely impaired in tud1 in response to BR.In conclusion,our study demonstrates the role of TUD1 in BR-induced GSK2 degradation,thereby advancing our understanding of a critical step in the BR signaling pathway of rice.Dapu Liu Xiaoxing Zhang Qingliang Li Yunhua Xiao Guoxia Zhang Wenchao Yin Mei Niu Wenjing Meng Nana Dong Jihong Liu Yanzhao Yang Qi Xie Chengcai Chu Hongning Tong 2023Plant Communications2023,4,2:2
13Tensor force effect on single-proton energy levels of oxygen isotopes显示文摘In the framework of the Hartree-Fock approach the proton spin-orbital splittings of the 1p orbits and the shell gaps in the oxygen isotopes are investigated with the interactions SLy5+T,SLy5+Tw,SGII+Te1,SGII+Te2,SGII+Te3 and many sets of the TIJ interactions.All of the interactions are the Skyrme interactions and contain a tensor component(tensor force).It is shown that the evolution of the single-proton levels for the oxygen isotopes is sensitive to a parameterβTwhich is associated with the tensor force strength of the Skyrme interactions.To understand this phenomenon,we systematically analyze the dependence of the spin-orbit splittings and shell gaps on the parameterβTin terms of the spin-orbit potential and the corresponding wave function.We find that the Skyrme interactions can be classified into two groups:(a)T21,T32,T43,T54,SLy5+T,SLy5+Tw,SGII+Te1 and SGII+Te2,which can roughly reproduce the experimental shell gaps of the oxygen isotopes;(b)T1J and SGII+Te3,which can not reproduce the experimental shell gaps.YU GuoLiang GU JianZhong WANG YanZhao LI ZhenYu MENG GaoQing 2014Science China(Physics,Mechanics & Astronomy)2014,57,9:2
14Engineering hiPSC-CM and hiPSC-EC laden 3D nanofibrous splenic hydrogel for improving cardiac function through revascularization and remuscularization in infarcted heart显示文摘Cell therapy has been a promising strategy for cardiac repair after myocardial infarction(MI),but a poor ischemic environment and low cell delivery efficiency remain significant challenges.The spleen serves as a hematopoietic stem cell niche and secretes cardioprotective factors after MI,but it is unclear whether it could be used for human pluripotent stem cell(hiPSC)cultivation and provide a proper microenvironment for cell grafts against the ischemic environment.Herein,we developed a splenic extracellular matrix derived thermoresponsive hydrogel(SpGel).Proteomics analysis indicated that SpGel is enriched with proteins known to modulate the Wnt signaling pathway,cell-substrate adhesion,cardiac muscle contraction and oxidation-reduction processes.In vitro studies demonstrated that hiPSCs could be efficiently induced into endothelial cells(iECs)and cardiomyocytes(iCMs)with enhanced function on SpGel.The cytoprotective effect of SpGel on iECs/iCMs against oxidative stress damage was also proven.Furthermore,in vivo studies revealed that iEC/iCM-laden SpGel improved cardiac function and inhibited cardiac fibrosis of infarcted hearts by improving cell survival,revascularization and remuscularization.In conclusion,we successfully established a novel platform for the efficient generation and delivery of autologous cell grafts,which could be a promising clinical therapeutic strategy for cardiac repair and regeneration after MI.Ge Guan Da Huo Yanzhao Li Xiaolin Zhao Yinghao Li Zhongliang Qin Dayu Sun Guanyuan Yang Mingcan Yang Ju Tan Wen Zeng Chuhong Zhu 2021Bioactive Materials2021,6,12:2
15How time-inconsistent preferences influence venture capital exit decisions?A new perspective for grandstanding显示文摘Considering that the assumption of time consistency does not adequately reveal the mechanisms of exit decisions of venture capital(VC),this study proposes two kinds of time-inconsistent preferences(i.e.,time-flow inconsistency and time-point incon-sistency)to advance research in this field.Time-flow inconsistency is in line with the previous time inconsistency literature,while time-point inconsistency is rooted in the VC fund’s finite lifespan.Based on the assumption about the strategies guiding future behaviors,we consider four types of venture capitalists:time-consistent,time-point-inconsistent,naïve,and sophisticated venture capitalists,of which the latter three are time-inconsistent.We derive and compare the exit thresholds of these four types of venture capitalists.The main results include:(1)time-inconsistent preferences acceler-ate the exits of venture capitalists;(2)the closer the VC funds expiry dates are,t`he more likely time-inconsistent venture capitalists are to accelerate their exits;and(3)future selves caused by time-flow inconsistency weaken the effect of time-point inconsist-ency.Our study provides a behavioral explanation for the empirical fact of young VCs’grandstanding.Yanzhao Li Ju-e Guo Shaolong Sun Yongwu Li 2022Financial Innovation2022,8,1:2
16Grain - for - green Policy and Its Impacts on Grain Supply in West China 显示文摘Zhimlng Feng Yanzhao Yang Yaoql Zhang Pengtao Zhang and Yiqing Li 2005Land Use Policy2005,,22:1
17Diagnostic Value of MicroRNAs for Urologic Cancers: A Systematic Review and Meta-Analysis显示文摘Hui Ouyang Yanzhao Zhou Li Zhang Guanxin Shen 2015Medicine2015,,:1
18Melatonin improves the survival of cryopreserved callus of Rhodiola crenulata显示文摘YanZhao Li‐WangQi Wei‐MingWang Praveen K.Saxena Chun‐ZhaoLiu 2010Journal of Pineal Research2010,,1:1
19Log-periodic quantum magneto-oscillations and discrete-scale invariance in topological material HfTe5显示文摘Discrete-scale invariance(DSI)is a phenomenon featuring intriguing log-periodicity that can be rarely observed in quantum systems.Here,we report the log-periodic quantum oscillations in the longitudinal magnetoresistivity(ρxx)and the Hall traces(ρyx)of Hf Te5 crystals,which reveal the DSI in the transport-coefficients matrix.The oscillations inρxx andρyx show the consistent log B-periodicity with a phase shift.The finding of the log B oscillations in the Hall resistance supports the physical mechanism as a general quantum effect originating from the resonant scattering.Combined with theoretical simulations,we further clarify the origin of the log-periodic oscillations and the DSI in the topological materials.This work evidences the universality of the DSI in the Dirac materials and provides indispensable information for a full understanding of this novel phenomenon.Huichao Wang Yanzhao Liu Yongjie Liu Chuanying Xi Junfeng Wang Jun Liu Yong Wang Liang Li Shu Ping Lau Mingliang Tian Jiaqiang Yan David Mandrus Ji-Yan Dai Haiwen Liu Xincheng Xie Jian Wang 2019National Science Review2019,6,5:1
20Photocataly- tic hydrogen generation in the presence of chloroacetic acids over Pt/TiO2 显示文摘Li Yuexiang Xie Yanzhao Peng Shaoqing 2006Chemosphere2006,,63:1
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