维普中文期刊产品整合服务
13篇 您的检索式:作者名="Xiangyun Lin"
    题名 作者 年代 出处 被引量
1Sedimentary Evolution and Transgressions of the Western Subei Basin in Eastern China since the Late Pliocene显示文摘Sedimentary sequences in the Subei Basin are complex and have been affected by interactions between the ocean and rivers since the Late Pliocene, including the Yellow River, Huaihe River, and the Yangtze River. This sedimentary evolution, in particular the timing of Pleistocene transgressions, has long been a matter of controversy owing to the lack of precise chronological evidence. The aim of this study is to explore the evolution of the sedimentary environment throughout the past 3.00 Ma in this region on the basis of a comprehensive analysis of particle size and foraminifera and ostracods collected in the TZK9 core from the Subei Basin combined with geochronological studies of magnetostratigraphy, AMS^(14)C and optically stimulated luminescence(OSL). The results show that fluvial facies in the sedimentary environment from 3.00 to 1.01 Ma. There were fluvial facies and reflects six sea-level high stands from 1.01 to 0.25 Ma. The study area was affected by four large-scale transgressions since 0.25 Ma. The four marine sedimentary layers known as DU7(buried at 48–52 m), DU5(buried at 35–41 m), DU3(buried at 16–23 m), and DU1(buried at 2–4 m) are recorded in the MIS7(210–250 ka), MIS5, MIS3, and Holocene, respectively. The magnitude of the DU5 transgression was identical to that of the DU3 transgression, both were larger than the DU7 transgression, and the DU1 transgression was the weakest. The variation of transgression strength reflects the influence of global changes in sea level, tectonic subsidence, shell ridges, and sand dams. In the TZK9 core, we found evidence of seven sea-level high stands from the Early–Middle Pleistocene, and the first one caused by regional rapid subsidence and could be traced back to 0.83-0.84 Ma. The sea-level high stands and the age of the first one recorded above was different from other cores in eastern China, this was caused by the lack of absolute age control and the differences in paleotopography during this period. This study reconstructs sedimentary evolution, determines the transgression and its age, establishes the chronology since the Late Pliocene, and provides a scientific framework for further paleoenvironmental and tectonic studies. The results of this study highlight the important role that local tectonics and global sea level play in the sedimentary evolution and transgressions that have occurred in the western Subei Basin.CHENG Yu LI Xiangqian SHU Junwu BAI Shibiao ZHAO Zengyu ZHANG Xiangyun GUO Gang ZHANG Ping LIN Jingxing 2019Acta Geologica Sinica(English Edition)2019,93,1:7
2Melatonin enhances radiofrequency-induced NK antitumor immunity,causing cancer metabolism reprogramming and inhibition of multiple pulmonary tumor development显示文摘Surgery is the comm on treatme nt for early lung cancer with multiple pulm onary no dules,but it is often accompanied by the problem of significant malignancy of other nodules in non-therapeutic areas.In this study,we found that a combined treatment of local rad iofreq ue ncy ablati on(RFA)and melatonin(MLT)greatly improved clinical outcomes for early lung cancer patie nts with multiple pulmonary nodules by minimizing lung function injury and reducing the probability of malignant transformation or enlargement of nodules in non-ablated areas.Mechanically,as demonstrated in an associated mouse lung tumor model,RFA not only effectively remove treated tumors but also stimulate antitumor immunity,which could inhibit tumor growth in non-ablated areas.MLT enhanced RFA-stimulated NK activity and exerted synergistic antitumor effects with RFA.Transcriptomics and proteomics analyses of residual tumor tissues revealed enhanced oxidative phosphorylation and reduced acidification as well as hypoxia in the tumor microenvironment,which suggests reprogrammed tumor metabolism after combined treatment with RFA and MLT.Analysis of residual tumor further revealed the depressed activity of MAPK,NF-kappa B,Wnt,and Hedgehog pathways and upregulated P53 pathway in tumors,which was in line with the inhibited tumor growth.Combined RFA and MLT treatment also reversed the Warburg effect and decreased tumor malignancy.These findings thus demonstrated that combined treatment of RFA and MLT effectively inhibited the malignancy of non-ablated nodules and provided an innovative non-invasive strategy for treating early lung tumors with multiple pulmonary nodules.Trial registration:www.chictr.org.cn,identifier ChiCTR2100042695,http://gffzz62a03ee25e6f4a77hkccff6bfvb0u6qqv.ffgz.tsg.suse.edu.cn/showproj.aspx?proj=120931.Ming Li Bingjie Hao Menghuan Zhang Russel J.Reiter Shumeng Lin Tiansheng Zheng Xiangyun Chen Yanbei Ren Liduo Yue Baigenzhin Abay Guojie Chen Xiao Xu Yufeng Shi Lihong Fan 2021Signal Transduction and Targeted Therapy2021,6,10:6
3Phyto-phospholipid complexes(phytosomes): A novel strategy to improve the bioavailability of active constituents显示文摘Although active constituents extracted from plants show robust in vitro pharmacological effects, low in vivo absorption greatly limits the widespread application of these compounds. A strategy of using phyto-phospholipid complexes represents a promising approach to increase the oral bioavailability of active constituents, which is consist of ‘‘label-friendly'phospholipids and active constituents. Hydrogen bond interactions between active constituents and phospholipids enable phospholipid complexes as an integral part. This review provides an update on four important issues related to phyto-phospholipid complexes: active constituents, phospholipids, solvents, and stoichiometric ratios. We also discuss recent progress in research on the preparation, characterization, structural verification, and increased bioavailability of phyto-phospholipid complexes.Mei Lu Qiujun Qiu Xiang Luo Xinrong Liu Jing Sun Cunyang Wang Xiangyun Lin Yihui Deng Yanzhi Song 2019Asian Journal of Pharmaceutical Sciences2019,14,3:4
4H_∞ CONTROL FOR STOCHASTIC SYSTEMS WITH POISSON JUMPS显示文摘这份报纸讨论 H 控制问题因为两个 Brownian 运动和泊松驾驶的线性随机的系统的一个类跳。作者为如此的系统关于稳定性给基本理论,包括内部稳定性和外部稳定性,它启用为系统证明围住的真实词根。借助于 Riccati 方程,线性随机的州反馈的 H 控制设计也是的无限的地平线延长了到如此的系统。Xiangyun LIN Rui ZHANG 2011Journal of Systems Science & Complexity2011,24,4:4
5A review on developments in the electrical structure of craton lithosphere显示文摘Cratons have a long history of evolution.In this paper,applications of the magnetotelluric method used in the study of craton lithosphere over the past 30 years were reviewed,examining case studies of cratons in North America,South America,Asia,Australia,and Africa.The nuclei of the Archean cratons,for example the Kalahari Craton and Rae Craton,are usually characterized by thick and highly resistive lithospheric roots.During or after the formation of the cratons,tectonothermal events,such as collision,mantle plume,and asthenosphere upwelling led to the formation of high-conductivity zones in the craton lithosphere,which could be attributed to the increased hydrogen content(of nominally anhydrous minerals),higher iron content,and formation of graphite films or sulfides along the grain boundary of minerals.These conductive zones are characterized by resistivity discontinuities in craton lithosphere.In particular,the conductive zones include(1)large-scale lithospheric mantle conductors beneath the Slave Craton,Gawler Craton,and central part of North China Craton(Trans-North China Orogen);(2)near-vertical high-conductivity zone associated with the fossil subduction zone beneath the Dharwar Craton and Slave Craton;and(3)regional lateral electrical discontinuities,such as a conductive anomaly under the Bushveld Complex of the Kaapvaal Craton.The eMoho refers to the electrical discontinuity in the crust-mantle boundary.In existing research,this has been detected under the condition of extremely high lithospheric resistivity with only a slight decrease in the lower crust,and in the case of a very thin conductive lower crust or the lack thereof.In the resistivity model,the unique'mushroom-like'lower crust-lithosphere mantle conductor and very thin lower crust layer of the North China Craton may represent lithosphere destruction and/or thinning.We also find that some of the cratons are still not well understood.Therefore,extensive three-dimensional inversion and joint interpretation of geochemical,geophysical,and geologic data are necessary to understand the tectonic evolutionary history of craton lithosphere.Xiangyun HU Wule LIN Wencai YANG Bo YANG 2020Science China Earth Sciences2020,63,11:3
6A highly active VOx-MnOx/CeO_(2) for selective catalytic reduction of NO:The balance between redox property and surface acidity显示文摘Excellent catalysts with low-temperature activity and relatively wide temperature window for selective catalytic reduction of NO with ammonia(NH_(3)-SCR) are highly demanded in view of the practical treatment of NO.Herein,we have designed a highly active VOx-MnOx/CeO_(2) material based on the intrinsic requirement of SCR reaction for catalyst,namely redox sites and surface acid sites.The vanadium oxide and manganese oxide are highly dispersed over the ceria mesosphere via simple incipient wetness impregnation.The loading of manganese could introduce acid sites and enhance the redox property remarkably,while the loading of vanadium increases acid sites and weakens redox property.Through tentatively controlling the appropriate loading ratio of the two components,the optimal catalyst achieves a balance between redox property and surface acidity.The work shed light on the development of new SCR catalyst with superior low temperature activity,wide work temperature window and good hydrothermal stability.Runnong Yang Zihan Gao Ming Sun Guangying Fu Gao Cheng Wuyuan Liu Xiaobo Yang Xiangyun Zhao Lin Yu 2021Journal of Rare Earths2021,39,11:3
7Natural linalool and the synthesis of linalool 显示文摘Lin Xiangyun 2008Chemical Engineering and Equipment2008,11,7:1
8Preparation of 3D micro/nanostructured CeO2: Influence of organic/inorganic acids显示文摘Runnong Yang Lin Yu Ming Sun Xiangyun Zhao Gao Cheng Wenjin Ye 2018Particuology2018,16,2:1
93D finite-element modeling of Earth induced electromagnetic field and its potential applications for geomagnetic satellites显示文摘The accumulated large amount of satellite magnetic data strengthens our capability of resolving the electrical conductivity of Earth’s mantle.To invert these satellite magnetic data,accurate and efficient forward modeling solvers are needed.In this study,a new finite-element based forward modeling solver is developed to accurately and efficiently compute the induced electromagnetic field for a realistic 3D Earth.Firstly,the nodal-based finite element method with linear shape function on tetrahedral grid is used to assemble the final system of linear equations for the magnetic vector potential and electric scalar potential.The FGMRES solver with algebraic multigrid(AMG)preconditioner is used to quickly solve the final system of linear equations.The weighted moving least-square method is employed to accurately recover the electromagnetic field from the numerical solutions of magnetic vector and electric scalar potentials.Furthermore,a local mesh refinement technique is employed to improve the accuracy of the estimated electromagnetic field.At the end,two synthetic models are used to verify the accuracy and efficiency of our newly developed forward modeling solver.A realistic 3D Earth model is used to simulate the induced magnetic field at 450 and 200 km altitudes which are the planned flying altitudes of Macao’s geomagnetic satellites.The simulation indicates that(1)the amplitude of the mantle-induced magnetic field can reach 10–30 nT at 450 km altitude,which is 10–30%of the primary magnetic field.The induced magnetic field at 200 km altitude has larger amplitudes.These mantleinduced magnetic fields can be measured by Macao geomagnetic satellites;(2)the amplitude of the ocean-induced magnetic field can reach 5–30 nT at satellite altitudes,which needs to be carefully considered in the interpretation of satellite magnetic data.We are confident that our newly developed forward modeling solver will become a key tool for interpreting satellite magnetic data.Hongbo YAO Zhengyong REN Jingtian TANG Yufeng LIN Changchun YIN Xiangyun HU Qinghua HUANG Keke ZHANG 2021Science China Earth Sciences2021,64,10:1
10Application of dispersive liquid-liquid microextraction for the analysis of six fungicides in fruit samples by GC-ECD显示文摘HUO Xin LI Qing LIN Xiangyun 2011Chromatographia2011,73,34:1
11Dispersive liquid- liquid microextraetion coupled with high-performance liquid chroma- tography-diode array detection for the determination of N-methyl ear- bamate pesticides in vegetables显示文摘LIN Xiangyun CHEN Xiaohui HUO Xin 2011Journal of Separation Science2011,34,2:1
12Small Molecules Efficiently Reprogram Human Astroglial Cells into Functional Neurons显示文摘Lei Zhang Jiu-Chao Yin Hana Yeh Ning-Xin Ma Grace Lee Xiangyun Amy Chen Yanming Wang Li Lin Li Chen Peng Jin Gang-Yi Wu Gong Chen 2015Cell Stem Cell2015,,:1
13Fabrication of flexible α-MnO_2 nanowire membranes with superior mechanical strength显示文摘The Assembly of one-dimensional(1D)nanostructures such as nanowires/nanorods/nanotubes into twodimensional(2D)macrostructured films is attracting considerable research interest because of their unique properties and wide applications.In this study,flexible membranes were successfully fabricated using a-MnO2nanowires synthesized through a hydrothermal method.The effects of thickness and post-annealing temperature on the mechanical properties of the membranes were investigated in detail.Nano-indentation measurements showed that the modulus of the as-prepared 11.75 lm-thick membrane reached5.765 GPa,and the modulus increased with the increasing post-annealing temperature.Thus,the fabricated membranes with superior mechanical strength can have potential applications such as in photocatalysis,filtering,and supporting substrates.Xingyue Zhao Xiaochong Zhao Jianbao Li Xiangyun Deng Hong Lin 2014Chinese Science Bulletin2014,59,13:0
返回顶部 每页显示:
共1页 首页 上一页 第1页 下一页 末页 /1 跳转

网站首页 | 关于我们 | 联系我们 | 产品服务 | 客服中心 | 广告服务 | 版权声明 | 网站联盟 | 友情链接 | 售卡网点

版权所有© 渝B2-20050021-1 渝公网安备 50019002500403号 违法和不良信息举报中心

互联网出版许可证 新出网证(渝)字10号 全国400电话 - 免长途话费