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165篇 您的检索式:作者名="Linli"
    题名 作者 年代 出处 被引量
1Transient Fault Locating Method Based on Line Voltage and Zero-mode Current in Non-solidly Earthed Network显示文摘为解决配电网小电流接地故障时故障点定位困难的问题,提出一种基于线电压和零模电流暂态分量的故障定位新方法。该方法借助馈线自动化(feeder automation,FA)系统实现,不需要额外增加设备。馈线终端检测线电压和零模电流信号,利用暂态线电压的希尔伯特变换与暂态零模电流的乘积计算故障方向参数,FA主站根据故障点前后方向参数极性相反的特征确定故障点所在的线路区段。介绍基于线电压的小电流接地故障检测和接地故障相确定的算法。数字仿真与试验结果表明该方法是正确可行的。ZHANG Linli XU Bingyin XUE Yongduan GAO Houlei 2012中国电机工程学报2012,32,13:48
2Temporal and spatial response of vegetation NDVI to temperature and precipitation in eastern China显示文摘到整个年,春天,夏天和秋天里的温度和降水的变化的植被 NDVI 的时间、空间的反应特征在东方中国从 205 个气象学的车站基于 SPOT VGT-NDVI 数据和降水数据从 1998 年 4 月被分析到 2008 年 3 月。结果显示总体上,到温度的变化的植被 NDVI 的反应是比在东方中国的降水的更显著的。植被 NDVI 最大地对温度的变化作出回应与一大约 10 的 lag 天,和它最大地对降水的变化作出回应与一大约 30 天的 lag。到温度和降水的植被 NDVI 的反应最在秋天被读,并且有最长在夏天落后。空间地,到温度的变化的植被 NDVI 的最大的反应比在东方中国的南部的部分在北、中间的部分是更显著的。到降水的变化的植被 NDVI 的最大的反应比在东方中国的中间、南部的部分在北部分是更显著的。到温度的变化的植被 NDVI 的反应更长有比在东方中国的中间的部分在北、南部的部分落后。到降水的变化的植被 NDVI 的反应有最长在南部的部分落后,并且最突然在东方中国的北部分落后。到在东方中国的温度和降水的变化的植被 NDVI 的反应与另外的结果主要一致,但是到温度和降水的变化的植被 NDVI 的 lag 时间与东方中国的季风区域的那些结果有一些差别。CUI Linli SHI Jun 2010Journal of Geographical Sciences2010,20,2:32
3Effect of Aluminum and Silicon on Transformation Induced Plasticity of the TRIP Steel显示文摘With the sublattice model, equilibrium compositions of ferrite (α) and austenite (γ) phases, as well as the volume percent of austenite (γ) at 780℃ in different TRIP steels were calculated. Concentration profiles of carbon, Mn, Al and Si in the steels were also estimated under the lattice fixed frame of reference so as to understand the complex mechanical behavior of TRIP steels after different isothermal bainitic transformation treatments. The effect of Si and Mn on transformation induced plasticity (TRIP) was discussed according to thermodynamic and kinetic analyses. It is recognized that Al also induces phase transformation in the steels but its TRIP effect is not as strong as that of Si.LinLI B.C.DeCoomant P.Wollants YanlinHE XiaodongZHOU 2004Journal of Materials Science & Technology2004,20,2:23
4Groundwater quality and land use change in a typical karst agricultural region:a case study of Xiaojiang watershed,Yunnan显示文摘Taking the typical karst agricultural region, Xiaojiang watershed in Luxi of Yunnan Province as a research unit, utilizing the groundwater quality data in 1982 and 2004, the aerial photos in 1982 and TM images in 2004, supported by the GIS, we probe into the law and the reason of its space-time change of the groundwater quality over the past 22 years in the paper. The results show: (1) There were obvious temporal and spatial changes of groundwater quality during the past 22 years. (2) Concentrations of NH +4, 2? SO 4, NO 3?, NO 2?, Cl ?and the pH value, total hardness, total alkalinity increased significantly, in which + NH 4, NO 3?, and NO ?2of groundwater exceeded the drinking water standards as a result of non-point pollution caused by the expansion of cultivated land and mass use of the fertilizer and pesticide. (3) Oppositely, Ca2+ and HCO 3?showed an obvious decline trend due to forest reduction and degradation and stony desertification. Meantime, there was a dynamic relation between the groundwater quality change and the land use change.JIANG Yongjun YUAN Daoxian XIE Shiyou LI Linli ZHANG Gui HE Raosheng 2006Journal of Geographical Sciences2006,16,4:14
5Cost-effective method of siRNA preparation and its application to inhibit hepatitis B virus replication in HepG2 cells显示文摘AIM: To find a cost-effective method of preparation of short interfering RNAs based on cloning, fermentation,digestion and purification (CFDP) and test its feasibility to inhibit hepatitis B virus replication in cell culture.METHODS: We constructed an expression vector containing T7 and tac promoter in a head-to-head orientation.cDNA fragment of interest was cloned into this vector between the opposing promoters. dsRNAs were expressed with this vector in Escherichia coli, and purified by affinity chromatography using CF 11 column. They were digested by RNase Ⅲ in a buffer containing manganese ions, then separated on 15% non-denaturing PAGE, and the siRNAs about 25 bp in length were recovered. siRNAs prepared with CFDP were co-transfected with target gene expression plasmid into human cell lines with lipofectamine 2000 to test their inhibition efficiency.RESULTS: siRNAs corresponding to part of the hepatitis3 virus polymerase gene (siHBVP) prepared by CFDP specifically and dramatically suppressed the virus protein expression. The HBsAg expression level was reduced to 10% that of the control by co-transfection of 60 nmol/L siHBVP in SMMC7721 cells. Dose-dependent effect on suppression of HBsAg and HBeAg expression was observed in HepG2 cells. The highest inhibition rate was kept at 70% during the six days after transfection of 7.5 nmol/L siHBVP.CONCLUSION: We show CFDP is a very promising method to prepare therapeutic agents in anti-virus applications.Zhi-KangQian Bao-QinXuan Tai-ShanMin Jian-FengXu LinLi Wei-DaHuang 2005World Journal of Gastroenterology2005,11,9:12
6Insight-HXMT observations of the first binary neutron star merger GW170817显示文摘Finding the electromagnetic(EM) counterpart of binary compact star merger, especially the binary neutron star(BNS) merger,is critically important for gravitational wave(GW) astronomy, cosmology and fundamental physics. On Aug. 17, 2017,Advanced LIGO and Fermi/GBM independently triggered the first BNS merger, GW170817, and its high energy EM counterpart,GRB 170817 A, respectively, resulting in a global observation campaign covering gamma-ray, X-ray, UV, optical, IR, radio as well as neutrinos. The High Energy X-ray telescope(HE) onboard Insight-HXMT(Hard X-ray Modulation Telescope) is the unique high-energy gamma-ray telescope that monitored the entire GW localization area and especially the optical counterpart(SSS17 a/AT2017 gfo) with very large collection area(~1000 cm^2) and microsecond time resolution in 0.2-5 MeV. In addition,Insight-HXMT quickly implemented a Target of Opportunity(ToO) observation to scan the GW localization area for potential X-ray emission from the GW source. Although Insight-HXMT did not detect any significant high energy(0.2-5 MeV) radiation from GW170817, its observation helped to confirm the unexpected weak and soft nature of GRB 170817 A. Meanwhile,Insight-HXMT/HE provides one of the most stringent constraints(~10^(-7) to 10^(-6) erg/cm^2/s) for both GRB170817 A and any other possible precursor or extended emissions in 0.2-5 MeV, which help us to better understand the properties of EM radiation from this BNS merger. Therefore the observation of Insight-HXMT constitutes an important chapter in the full context of multi-wavelength and multi-messenger observation of this historical GW event.TiPei Li ShaoLin Xiong ShuangNan Zhang FangJun Lu LiMing Song XueLei Cao Zhi Chang Gang Chen Li Chen TianXiang Chen Yong Chen YiBao Chen YuPeng Chen Wei Cui WeiWei Cui JingKang Deng YongWei Dong YuanYuan Du MinXue Fu GuanHua Gao He Gao Min Gao MingYu Ge YuDong Gu Ju Guan ChengCheng Guo DaWei Han Wei Hu Yue Huang Jia Huo ShuMei Jia LuHua Jiang WeiChun Jiang Jing Jin YongJie Jin Bing Li ChengKui Li Gang Li MaoShun Li Wei Li Xian Li XiaoBo Li XuFang Li YanGuo Li ZiJian Li ZhengWei Li XiaoHua Liang JinYuan Liao CongZhan Liu GuoQing Liu HongWei Liu ShaoZhen Liu XiaoJing Liu Yuan Liu YiNong Liu Bo Lu XueFeng Lu Tao Luo Xiang Ma Bin Meng Yi Nang JianYin Nie Ge OU JinLu Qu Na Sai Liang Sun Yin Tan Lian Tao WenHui Tao YouLi Tuo GuoFeng Wang HuanYu Wang Juan Wang WenShuai Wang YuSa Wang XiangYang Wen BoBing WU Mei Wu GuangCheng Xiao He Xu YuPeng Xu LinLi Yan JiaWei Yang Sheng Yang YanJi Yang AiMei Zhang ChunLei Zhang ChengMo Zhang Fan Zhang HongMei Zhang Juan Zhang Qiang Zhang Shu Zhang Tong Zhang Wei Zhang WanChang Zhang WenZhao Zhang Yi Zhang Yue Zhang YiFei Zhang YongJie Zhang Zhao Zhang ZiLiang Zhang HaiSheng Zhao JianLing Zhao XiaoFan Zhao ShiJie Zheng Yue Zhu YuXuan Zhu ChangLin Zou 2018Science China(Physics,Mechanics & Astronomy)2018,61,3:12
7Procyanidins from grape seeds protect against phorbol ester-induced oxidative cellular and genotoxic damage显示文摘AIM: To evaluate the inhibitory effects of Vitis vinifera procyanidins (PAs) on carcinogen-induced oxidative stress. METHODS: The single cell gel electrophoresis technique (comet assay) was employed to detect DNA damage induced by the carcinogen phorbol-12-myristate-13-acetate (PMA), The release of hydrogen peroxidase from polymorphonuclear leukocytes (PMNs) was assayed by the horseradish peroxidase-mediated oxidation of phenol red. The microplate assay was used to detect the presence of oxidative products by means of 2',7'-dichlorofluorescindiacetate (DCFH-DA). The superoxide dismutase (SOD) activity of liver mitochondria was assayed, based on the ability of SOD to inhibit the generation of superoxidate anions by the xanthine-xanthine oxidase system. The malondialdehyde (MDA) level was determined by the thiobarbituric acid (TBA) assay. RESULTS: DNA of NIH3T3 cells was significantly damaged after addition of PMA. The length of the comet tail was observed ,while in normal cells the comet tail could not be observed. PAs showed significant protective effects on carcinogen PMA-induced DNA damage. Through assessment of DCFH-DA oxidation, PAs were shown to inhibit the PMA-induced release of hydrogen peroxide by PMNs, and to inhibit respiratory burst activity in NIH3T3 mouse fibroblasts. Ex vivo study showed that serum from rats administered with PAs displayed similar effects in a dose-dependent manner. In addition, PAs suppressed liver mitochondrial lipid peroxidation induced by PMA. PAs protected the activity of SOD and decreased the level of MDA in liver mitochondria damaged by PMA. CONCLUSION: Dietary PAs from grape seeds protect against carcinogen-induced oxidative cellular and genotoxic damage,YinLU Wan-zhouZHAO ZaiCHANG Wen-xingCHEN LinLI 2004Acta Pharmacologica Sinica2004,25,8:10
8Incremental value of contrast echocardiography in the diagnosis of left ventricular noncompaction显示文摘Xiaoxiao Zhang Li Yuan Linli Qiu Yali Yang Qing Lv Lin Li Jing Wang Lin He Li Zhang Xinfang Wang Mingxing Xie Xu Yu Jin 2016Frontiers of Medicine2016,10,4:10
9Probabilistic small signal stability analysis of power system with wind power and photovoltaic power based on probability collocation method显示文摘Recently, with increasing improvements in the penetration of wind power and photovoltaic power in the world, probabilistic small signal stability analysis(PSSSA) of a power system consisting of multiple types of renewable energy has become a key problem. To address this problem, this study proposes a probabilistic collocation method(PCM)-based PSSSA for a power system consisting of wind farms and photovoltaic farms. Compared with the conventional Monte Carlo method, the proposed method meets the accuracy and precision requirements and greatly reduces the computation; therefore, it is suitable for the PSSSA of this power system. Case studies are conducted based on a 4-machine 2-area and New England systems, respectively. The simulation results show that, by reducing synchronous generator output to improve the penetration of renewable energy, the probabilistic small signal stability(PSSS) of the system is enhanced. Conversely, by removing part of the synchronous generators to improve the penetration of renewable energy, the PSSS of the system may be either enhanced or deteriorated.Cai Yan Linli Zhou Wei Yao Jinyu Wen Shijie Cheng 2019Global Energy Interconnection2019,2,1:9
10Effects of Alloying Elements on the Concentration Profile of Equilibrium Phases in Transformation Induced Plasticity Steel显示文摘With the two sublattices model, equilibrium compositions of ferrite (α) and austenite (γ) phases, as well as thevolume percent of austenite (γ) in different TRIP steels are calculated. Concentration profiles of carbon, manganese,aluminum and silicon in these steels are also estimated under the lattice fixed frame of reference so as to identifyif the equilibrium state is obtained. Through the comparison between the profiles after different time diffusion, thedistribution of elements in phases is exhibited and the complex effect due to the mutual interaction of the elementson diffusion is discussed.LinLI P.Wollants ZuyaoXU B.C.DeCooman XiaodongZHU 2003Journal of Materials Science & Technology2003,19,3:7
11Impact of grain size on the Seebeck coefficient of bulk polycrystalline thermoelectric materials显示文摘Based on the Boltzmann transport equation of electrons and taking the scattering effect of electrons in the grain boundary as the boundary conditions of electrons transport in the grain, we presented a theoretical model for the Seebeck coefficient of bulk poly- crystalline thermoelectric materials, and applied it to studying the grain size effect on the Seebeck coefficient. Then we discussed the effects of transmissivity, temperature and the mean free path of electrons on the size effect. The results show that the proposed theoretical model is reasonable and effective and the predicted results for the Seebeck coefficient are in good agreement with the experimental data reported in literature. The bulk polycrystalline materials have notable (big) grain size effects on the Seebeck coefficient, and the influences of transmissivity, temperature and the mean free path of electrons on the Seebeck coefficient are also significant.GAO YuanWen HE YueZhou ZHU LinLi 2010Chinese Science Bulletin2010,55,1:7
12Superior CO2 uptake on nitrogen doped carbonaceous adsorbents from commercial phenolic resin显示文摘In this study,N-doped porous carbons were produced with commercial phenolic resin as the raw material,urea as the nitrogen source and KOH as the activation agent.Different from conventional carbonization-nitriding-activation three-step method,a facile two-step process was explored to produce N-incorporated porous carbons.The as-obtained adsorbents hold superior CO2 uptake,i.e.5.01 and 7.47 mmol/g at 25℃and 0℃under 1 bar,respectively.The synergistic effects of N species on the surface and narrow micropores of the adsorbents decide their CO2 uptake under 25℃and atmospheric pressure.These phenolic resin-derived adsorbents also possess many extremely promising CO2 adsorption features like good recyclability,quick adsorption kinetics,modest heat of adsorption,great selectivity of CO2 over N2 and outstanding dynamic adsorption capacity.Cheap precursor,easy preparation strategy and excellent CO2 adsorption properties make these phenolic resin-derived N-doped carbonaceous adsorbents highly promising in CO2 capture.Shenfang Liu Linli Rao Pupu Yang Xinyi Wang Linlin Wang Rui Ma Limin Yue Xin Hu 2020Journal of Environmental Sciences2020,32,7:6
13Dephosphorylation of cardiomyocyte Cx43 is associated with myocardial ischemia and reperfusion injury显示文摘Objective:Myocardial ischemia/reperfusion(I/R) injury is the leading cause of death in the world. However,the details of the mechanism of its pathophysiology are still unknown. The present study was designed to investigate the role of connexin 43(Cx43) in acute models of myocardial I/R injury. Methods:Male C57BL/6 mice were subjected to myocardial ischemia(45 min) followed by reperfusion(4 hrs) in vivo. The whole operation was monitored using a two-lead ECG. Hearts were harvested and the level of protein was assessed by western blot analysis. Haematoxylin and Eosin(HE) staining was used to detect the extent of neutrophil infiltration. The expression level of IL-6 was detected by ELISA. Results:A murine myocardial I/R injury model was constructed successfully. Phosphorylated Cx43 decreased 83. 45% while non-phosphorylated Cx43 increased 1.62-fold in the myocardium after I/R injury. Neutrophil infiltration and the expression of the inflammatory cytokine IL-6 increased in the myocardium following I/R. Conclusion:During myocardial I/R injury,cardiomyocyte Cx43 is dephosphorylated,and this may be associated with an inflammatory response.Zhijuan Cao Xuan Xu Linli Que Qi Chen Yuehua Li 2009Journal of Nanjing Medical University2009,23,3:6
14Mycorrhizal fungal community composition in seven orchid species inhabiting Song Mountain, Beijing, China显示文摘Mycorrhizal fungi play an important role in the germination and growth of orchids essentially influencing their survival,abundance, and spatial distribution. In this study, we investigated the composition of the mycorrhizal fungal community in seven terrestrial orchid species inhabiting Song Mountain, Beijing, China, using Illumina MiSeq high-throughput sequencing. The mycorrhizal communities in the seven orchids were mainly composed of members of the Ceratobasidiaceae, Sebacinales, and Tulasnellaceae, while a number of ectomycorrhizal fungi belonging to the Russulaceae, Tricholomataceae, Thelephoraceae, and Cortinariaceae were occasionally observed. However, the dominant fungal associates and mycorrhizal community differed significantly among the orchid species as well as subhabitats. These findings confirm the previous observation that sympatric orchid species show different preferences for mycorrhizal fungi, which may drive niche partitioning and contribute to their cooccurrence.Yanhong Chen Yue Gao Linli Song Zeyu Zhao Shunxing Guo Xiaoke Xing 2019Science China(Life Sciences)2019,62,6:6
15Climatic characteristics of high temperature in East China during 1961-2005显示文摘Based on the daily maximum temperature data covering the period 1961-2005, temporal and spatial characteristics and their changing in mean annual and monthly high temperature days(HTDs)and the mean daily maximum temperature(MDMT)during annual and monthly HTDs in East China were studied.The results show that the mean annual HTDs were 15.1 and the MDMT during annual HTDs was 36.3℃in the past 45 years.Both the mean annual HTDs and the MDMT during annual HTDs were negative anomaly in the1980s and positive anomaly in the other periods of time,oscillating with a cycle of about 12-15 years.The mean annual HTDs were more in the southern part,but less in the northern part of East China.The MDMT during annual HTDs was higher in Zhejiang,Anhui and Jiangxi provinces in the central and western parts of East China.The high temperature process(HTP) was more in the southwestern part,but less in northeastern part of East China.Both the HTDs and the numbers of HTP were at most in July,and the MDMT during monthly HTDs was also the highest in July.In the first 5 years of the 21st century,the mean annual HTDs and the MDMT during annual HTDs increased at most of the stations,both the mean monthly HTDs and the MDMT during monthly HTDs were positive anomalies from April to October,the number of each type of HTP generally was at most and the MDMT in each type of HTP was also the highest.SHI Jun TANG Xu CUI Linli 2008Journal of Geographical Sciences2008,18,3:5
16Characterization of Function of Three Domains in Dishevelled-1: DEP Domain is Responsible for Membrane Translocation of Dishevelled-1显示文摘Wnt signaling plays an important role in embryogenesis and tumorgenesis. Although the mechanism about how Wnts transduce their signaling from receptor frizzled (Fz) to cytosol has not been understood, dishevelled (Dvl) protein was considered as the intersection of Wnt signal traffic. In this study, we characterized the function of three domains (DIX,PDZ and DEP) of Dvl-1 in canonical Wnt signal transduction and Dvl-1 membrane translocation. It was found both DIX and DEP domain were sufficient to block Wnt-3a-induced LEF-1 transcriptional activity and free cytosol β-catenin accumulation; whereas PDZ domain and a functional mutant form of DEP domain (DEP-KM) had no effect on canonical Wnt signaling. In addition, when cotransfected with Fz-7, DEP domain, but not DIX, PDZ or DEP-KM, translocated and co-localized with Fz-7 to the plasma membrane, which was similar to Dvl-1. Furthermore, it was DEP domain that could block Fz-7-induced membrane translocation of Dvl- 1 via a possible competitive mechanism. These results strongly suggest that DEP domain is responsible for the membrane translocation of Dvl-1 protein upon Wnt signal stimulation.WeiJunPAN ShuZhaoPANG TaoHUANG HuiYunGUO DianqingWU LinLI 2004Cell Research2004,14,4:4
17Non-genetic photoacoustic stimulation of single neurons by a tapered fiber optoacoustic emitter显示文摘Neuromodulation at high spatial resolution poses great significance in advancing fundamental knowledge in the field of neuroscience and offering novel clinical treatments.Here,we developed a tapered fiber optoacoustic emitter(TFOE)generating an ultrasound field with a high spatial precision of 39.6 pm,enabling optoacoustic activation of single neurons or subcellular structures,such as axons and dendrites.Temporally,a single acoustic pulse of sub-microsecond converted by the TFOE from a single laser pulse of 3 ns is shown as the shortest acoustic stimuli so far for successful neuron activation.The precise ultrasound generated by the TFOE enabled the integration of the optoacoustic stimulation with highly stable patch-clamp recording on single neurons.Direct measurements of the electrical response of single neurons to acoustic stimulation,which is difficult for conventional ultrasound stimulation,have been demonstrated.By coupling TFOE with ex vivo brain slice electrophysiology,we unveil cell-type-specific responses of excitatory and inhibitory neurons to acoustic stimulation.These results demonstrate that TFOE is a non-genetic single-cell and sub-cellular modulation technology,which could shed new insights into the mechanism of ultrasound neurostimulation.Linli Shi Ying Jiang Fernando R.Fernandez Guo Chen Lu Lan Heng-Ye Man John A.White Ji-Xin Cheng Chen Yang 2021Light(Science & Applications)2021,10,8:4
18Reinforcement learning with actor-critic for knowledge graph reasoning显示文摘Dear editor,In recent years,with the development of artificial intelligence and deep learning techniques,knowledge graph(KG)is receiving unprecedented attention.Essentially,KG is a semantic network,which stores massive information structured as entityrelation pairs in a graphical model.Linli ZHANG Dewei LI Yugeng XI Shuai JIA 2020Science China(Information Sciences)2020,63,6:4
19Confirmation of ultrahigh-temperature metapelitic granulite in the Altay orogen and its geological significance显示文摘Through petrography, mineral compositions and P-T estimate results, an ultrahigh-temperature(UHT) metapelitic granulite has recently been identified from near Kalasu in the east of Altay city, with an assemblage gt-opx-silcd-sp-bt-pl-qtz. The orthopyroxene has a high-Al feature, and its Al2O3 content is as high as 8.7 wt%, indicating a UHT metamorphic condition. Its peak metamorphic condition is estimated as: P = *0.80 GPa, T = *960 °C. Metamorphic textural relations and P-T estimate results show a post-peak near-isobaric cooling anticlockwise P-T path. Zircon U-Pb age results(271 ± 5 Ma) support that the UHT metamorphic event in the region occurred in the Permian. The identification of the UHT metapelitic granulite from near Kalasu confirms the existence of the Permian UHT metamorphism in the Altay orogen, implying that the Permian extensional tectonic setting of a high-heat flow in the southern part of the Altay orogen may be closely associated with the Permian Tarim mantle plume activity.Laixi Tong Yibing Chen Linli Chen 2014Chinese Science Bulletin2014,59,27:4
20Computer Aided Composition Design of Prehardened-Mould Steel for Plastic显示文摘The improvement of machining behavior of prehardened-mould steel for plastic is realized by using computer-aided composition design in this work. The results showed that the matrix composition of large sectional prehardened mould steel for plastic markedly influences the precipitation of non-metallic inclusion and the control of composition aided by Thermo-Calc software package minimizes the amount of detrimental oxide inclusion. In addition the modification of calcium is optimized in the light of composition design.YanlinHE LinLI XiaochunWU PatrickWOLLANTS 2004Journal of Materials Science & Technology2004,20,1:4
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