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13篇 您的检索式:作者名="Liangfu Xu"
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1The concept of effective emissivity of nonisothermal mixed pixel and its test显示文摘Based on two preconditions, the local thermal equilibrium is satisfied and emissivities donot change with temperature, the concept of component effective emissivity of nonisothermal mixed pixel has been put forward and then the radiant directionality model of nonisothermal mixed pixel constructed from it. Our study shows that the component effective emissivity is associated with geometric structure, optical properties of target, and viewing angle, but does not depend on the component temepratures. The component temperatures can only change the ratio of component radiance to the total radiance of the mixed-pixel. The total effective emissivity of this pixel is the complement of its directional-hemisphere reflectance. After the simulation of component effective emissivity of the discrete cones and continuous vegetation canopy (winter wheat) by the Monte Carlo method, our model of radiant directionality of nonisothermal mixed pixel have been proved by lab and field measurements.CHEN Liangfu ZHUANG Jiali XU Xiru NIU Zheng ZHANG Renhua XIANG Yueqing 2000Chinese Science Bulletin2000,45,9:17
2Laser performance of the SG-Ⅲ laser facility显示文摘SG-Ⅲ laser facility is now the largest laser driver for inertial confinement fusion research in China. The whole laser facility can deliver 180 kJ energy and 60 TW power ultraviolet laser onto target, with power balance better than 10%.We review the laser system and introduce the SG-Ⅲ laser performance here.Wanguo Zheng Xiaofeng Wei Qihua Zhu Feng Jing Dongxia Hu Jingqin Su Kuixing Zheng Xiaodong Yuan Hai Zhou Wanjun Dai Wei Zhou Fang Wang Dangpeng Xu Xudong Xie Bin Feng Zhitao Peng Liangfu Guo Yuanbin Chen Xiongjun Zhang Lanqin Liu Donghui Lin Zhao Dang Yong Xiang Xuewei Deng 2016High Power Laser Science and Engineering2016,4,3:13
3Laser performance upgrade for precise ICF experiment in SG-Ⅲ laser facility显示文摘The SG-Ⅲlaser facility(SG-Ⅲ)is the largest laser driver for inertial confinement fusion(ICF)researches in China,which has 48 beamlines and can deliver 180 kJ ultraviolet laser energy in 3 ns.In order to meet the requirements of precise physics experiments,some new functionalities need to be added to SG-Ⅲand some intrinsic laser performances need upgrade.So at the end of SG-Ⅲ's engineering construction,the 2-year laser performance upgrade project started.This paper will introduce the newly added functionalities and the latest laser performance of SG-Ⅲ.With these function extensions and performance upgrade,SG-Ⅲis now fully prepared for precise ICF experiments and solidly paves the way towards fusion ignition.Wanguo Zheng Xiaofeng Wei Qihua Zhu Feng Jing Dongxia Hu Xiaodong Yuan Wanjun Dai Wei Zhou Fang Wang Dangpeng Xu Xudong Xie Bin Feng Zhitao Peng Liangfu Guo Yuanbin Chen Xiongjun Zhang Lanqin Liu Donghui Lin Zhao Dang Yong Xiang Rui Zhang Fang Wang Huaiting Jia Xuewei Deng 2017Matter and Radiation at Extremes2017,2,5:13
4Therapeutic effect of electroacupuncture,massage,and blocking therapy on external humeral epicondylitis显示文摘OBJECTIVE:To compare two therapeutic methods:electroacupuncture + massage + blocking therapy,and blocking therapy alone in the treatment of external humeral epicondylitis.METHODS:Eighty-six patients were randomized into two groups with 43 in each. The treatment group received electroacupuncture + massage +blocking therapy, while the control group received blocking therapy only. A course of electroacupuncture treatment included therapy once a day for 10days. There were 10 treatments in a massage course and massage was given once a day, with a1-week interval given before the next course. A course of blocking treatment included therapy once a week, for twototaltreatments,andgenerallyno more than three times. The therapeutic effects were evaluated with the visual analog scale(VAS),grip strength index(GSI) score, and Mayo elbow performance score(MEPS) before treatment and at0, 6, 12, and 24 months after treatment to observe thetotaleffectiverate.RESULTS: In the treatment and control groups before treatment and at 0, 6, 12, and 24 months after treatment, the VAS scores were: 6.5±1.9 and 6.4±1.6; 4.6±1.3 and 4.6±1.7; 4.8±1.3 and 4.8±1.2; 4.6±1.2 and 6.6±1.6; and 6.5±1.6 and 6.5±1.3, respectively. The GSI scores were 63±8 and 63±8; 84±6and82±7;82±7and82±6;84±6and62±8;and64±6 and 64±7, respectively.The MEPS of both groups were65±7and66±8;85±6and84±7;84±5and84±7;80±7and66±6;and65±6and65±7,respectively.The total effective rates of the treatment and control groups at 0, 6, 12, and 24 months after treatment were 87.5% and 85.0%; 85.0% and 82.5%;80.0% and 12.5%; and 2.5% and 5.0%, respectively.Compared with the treatment group, the control group had greater joint function, better the rapeutic effect, and lower pain intensity(P<0.01), indicating a high recurrence rate in the 12th month after treatment.There were no differences inVAS, GSI, or MEPS at 0, 6, and 24 months after treatment(P>0.05)betweenthetwogroups.CONCLUSION: We found that both methods were effective for external humeral epicondylitis. After 6months of treatment,the effects were good in both groups. However, in the 12th month, the control group had a relatively severe relapse. After 24months, both groups relapsed. The effect of electroacupuncture, massage, and blocking therapy used in combination lasted longer, delaying the recurrence of the disease.Xinjian Li Kun Zhou Enming Zhang Zhen xiQi Weiqing Sun Liangfu Xu Jianfeng Xu Youzhi Cai Ronghui Wang 2014Journal of Traditional Chinese Medicine2014,34,3:6
5Correction to:Efficient derivation of extended pluripotent stem cells from NOD-scid II2rg^-/-mice显示文摘Figure 1.Generation of NOD-scid II2rg^-1-extended pluripotent stem cells.(A)Schematic of two approaches used for generating NOD-scid II2rg^-1-extended pluripotent stem cells:de novo derivation from blastocysts(upper panels)and chemical reprogramming from embryonic fibroblasts(lower panels).(B)Phase-contrast images of de novo derived outgrowth and EPS colonies for 17 passages in LCDM medium.Scale bars,100 pm.(C)qRT-PCR analysis of XEN marker genes expression during the chemical induction process(day 16).Error bars indicate SEM(n=2).(D)Co-immunostaining of XEN marker genes during the chemical induction process(day 16).Upper panels:GATA6 and SALL4;lower panels:SOX17 and SALL4.Scale bars,100 pm.Yaqin Du Ting Wang Jun Xu Chaoran Zhao Haibo Li Yao Fu Yaxing Xu Liangfu Xie Jingru Zhao Weifeng Yang Ming Yin Jinhua Wen Hongkui Deng 2019Protein & Cell2019,10,2:1
6Matrix Expression of Thermal Radiative Characteristics for An Open Complex显示文摘Xu Xiru Fan Wenjie Chen Liangfu 2001Science in China(Series D)2001,45,7:1
7Rapid generation of gene-targeted EPS-derived mouse models through tetraploid complementation显示文摘One major strategy to generate genetically modified mouse models is gene targeting in mouse embryonic stem(ES)cells,which is used to produce gene-targeted mice for wide applications in biomedicine.However,a major bottleneck in this approach is that the robustness of germiine transmission of gene-targeted ES cells can be significantly reduced by their genetic and epigenetic instability after long-term culturing,which impairs the efficiency and robustness of mouse model generation.Recently,we have established a new type of pluripotent cells termed extended pluripotent stem(EPS)cells,which have superior developmental potency and robust germline competence compared to conventional mouse ES cells.In this study,we demonstrate that mouse EPS cells well maintain developmental potency and genetic stability after long-term passage.Based on gene targeting in mouse EPS cells,we established a new approach to directly and rapidly generate gene-targeted mouse models through tetraploid complementation,Haibo Li and Chaoran Zhao contributed equally to this work.Electronic supplementary material The online version of this article(http://gffzzd3cc09b8251d45dfscwkk5kcqvkpc6bbb.ffgz.tsg.suse.edu.cn/10.1007/s13238-018-0556-1)contains supplementary material,which is available to authorized users.which could be accomplished in approximately 2 months.Importantly,using this approach,we successfully constructed mouse models in which the human interleukin 3(IL3)or interleukin 6(IL6)gene was knocked into its corresponding locus in the mouse genome.Our study demonstrates the feasibility of using mouse EPS cells to rapidly generate mouse models by gene targeting,which have great application potential in biomedical research.Haibo Li Chaoran Zhao Jun Xu Yaxing Xu Chunmei Cheng Yinan Liu Ting Wang Yaqin Du Liangfu Xie Jingru Zhao Yanchuang Han Xiaobao Wang Yun Bai Hongkui Deng 2019Protein & Cell2019,10,1:1
8Study on the law of radiant directionality of row crops显示文摘Chen Liangfu Zhuang Jiali Liu Qinhuo Xu Xiru Tian Guoliang 2000Science in China Series E: Technological Sciences2000,,1:1
9Study on the law of radiant directionality of row crops显示文摘Chen Liangfu Zhuang Jiali Liu Qinhuo Xu Xiru Tian Guoliang 2000Science in China Series E: Technological Sciences2000,,1:1
10The matrix expression of thermal radiative characteristics for open complex显示文摘Xu Xiru Fan Wenjie Chen Liangfu 2002Science in China Ser D2002,45,7:1
11Cloud Top Pressure Retrieval Using Polarized and Oxygen A-band Measurements from GF5 and PARASOL Satellites显示文摘Cloud top pressure(CTP)is one of the critical cloud properties that significantly affects the radiative effect of clouds.Multi-angle polarized sensors can employ polarized bands(490 nm)or O_(2)A-bands(763 and 765 nm)to retrieve the CTP.However,the CTP retrieved by the two methods shows inconsistent results in certain cases,and large uncertainties in low and thin cloud retrievals,which may lead to challenges in subsequent applications.This study proposes a synergistic algorithm that considers both O_(2)A-bands and polarized bands using a random forest(RF)model.LiDAR CTP data are used as the true values and the polarized and non-polarized measurements are concatenated to train the RF model to determine CTP.Additionally,through analysis,we proposed that the polarized signal becomes saturated as the cloud optical thickness(COT)increases,necessitating a particular treatment for cases where COT<10 to improve the algorithm's stability.The synergistic method was then applied to the directional polarized camera(DPC)and Polarized and Directionality of the Earth’s Reflectance(POLDER)measurements for evaluation,and the resulting retrieval accuracy of the POLDER-based measurements(RMSEPOLDER=205.176 hPa,RMSEDPC=171.141 hPa,R^(2)POLDER=0.636,R^(2)DPC=0.663,respectively)were higher than that of the MODIS and POLDER Rayleigh pressure measurements.The synergistic algorithm also showed good performance with the application of DPC data.This algorithm is expected to provide data support for atmosphere-related fields as an atmospheric remote sensing algorithm within the Cloud Application for Remote Sensing,Atmospheric Radiation,and Updating Energy(CARE)platform.Lesi WEI Huazhe SHANG Jian XU Chong SHI Gegen TANA Kefu CHAO Shanhu BAO Liangfu CHEN Husi LETU 2024Advances in Atmospheric Sciences2024,41,4:0
12Optical properties of chain-like soot with water coatings显示文摘In a moist atmosphere,the ageing process of aerosol can make the agglomerated soot particles compact,and cause them to be covered by a water coating.Based on the cluster‒cluster aggregation(CCA)algorithm,the models of chain-like soot with water coatings(Models A to E)were generated in this study.The superposition T-matrix method was employed to calculate their optical properties at 337,550,860,and 1060 nm wavelengths,with a focus on the impact of the soot inclusion morphology and water coating.Our results indicate that for particles with a looser soot-inclusion structure,there is a larger difference in the scattering phase function between them and the corresponding particles with a spherical soot core.The largest relative difference reached 51.8%at 337 nm.Impacted by the size parameter,the extinction cross section(Cext),absorption cross section(Cabs),scattering cross section(Csca),and single scattering albedo(SSA)increased as the water coating radius(Rwater)increased and incidence wavelength decreased.The traditional assumption of a spherical soot core can cause the Cext,Cabs,and Csca to be overestimated,and cause the SSA to be underestimated when the incident wavelength is 337 nm.At 1060 nm,the assumption can cause the Cext,Cabs,and Csca to be underestimated,and lead the SSA to be overestimated.When the fractal dimension(Df)of chain-like soot inclusion increased from 1.8 to 2.6,the SSA of the particles with a Rwater of 0.20μm significantly decreased from 0.784 to 0.764 at 1060 nm.Moreover,the thickness of the water coating had a stronger effect on the particles with chain-like soot inclusion at 337 nm than that at 1060 nm.For the 337 nm wavelength,the difference between the Cext and Csca in Model B when Rwater=0.30 and 0.20μm was 0.588 and 0.587μm2,respectively.The differences were only 0.096 and 0.095μm2,respectively,for the 1060 nm wavelength.Based on the results calculated by the superposition T-matrix method,the ratios of P22(Θ)/P11(Θ)for chain-like soot with water coatings are not absolutely equal to 100%.When the Df value of aggregated soot inclusion is a constant,P22(Θ)/P11(Θ)decreased as the volume ratio of soot inclusion to the water droplet increased.Therefore,the ratio of P22(Θ)/P11(Θ)can be potentially used as an optical indicator to describe the morphology of non-spherical and/or inhomogeneous particles(or inclusion)for internal aerosol,fog,or cloud particles.Generally,although the thickness of the water coating,to a large extent,dominates the optical properties of the internal mixtures,the morphology of aggregated soot inclusion is a key factor for causing uncertainties in optical parameters.This is especially so when the volume ratio of the soot inclusion and water droplet is large,and the structure of the soot inclusion is loose.Meng Fan Liangfu Chen Liangxiao Cheng Benben Xu Jinhua Tao Shenshen Li 2019Particuology2019,17,6:0
13Efficient derivation of extended pluripotent stem cells from NOD-scid II2rg-/-mice显示文摘Recently we have established a new culture condition enabling the derivation of extended pluripotent stem(EPS)cells,which,compared to conventional pluripotent stem cells,possess superior developmental potential and germline competence.However,it remains unclear whether this condition permits derivation of EPS cells from mouse strains that are refractory or non-permissive to pluripotent cell establishment.Here,we show that EPS cells can be robustly generated from non-permissive NOD-sc/d Il2rg 1 mice through de novo derivation from blastocysts.Furthermore,these cells can also be efficiently generated by chemical reprogramming from embryonic NOD-sc/d II2rg-/-fibroblasts.NOD-sc/d II2rg-/-EPS cells can be expanded for more than 20 passages with genomic stability and can be genetically modified through gene targeting.Notably,these cells contribute to both embryonic and extraembryonic lineages in vivo.More importantly,they can produce chimeras and integrate into the E13.5 genital ridge.Our study demonstrates the feasibility of generating EPS cells from refractory mouse strains,which could potentially be a general strategy for deriving mouse pluripotent cells.The generation of NOD-sc/d II2rg-/-Yaqin Du and Ting Wang contributed equally to this work.Electronic supplementary material The online version of this article(http://gffzzd3cc09b8251d45dfscwkk5kcqvkpc6bbb.ffgz.tsg.suse.edu.cn/10.1007/s13238-018-0558-z)contains supplementary material,which is available to authorized users.EPS cell lines permits sophisticated genetic modification in NOD-scid II2rg-/-mice,which may greatly advance the optimization of humanized mouse models for biomedical applications.Yaqin Du Ting Wang Jun Xu Chaoran Zhao Haibo Li Yao Fu Yaxing Xu Liangfu Xie Jingru Zhao Weifeng Yang Ming Yin Jinhua Wen Hongkui Deng 2019Protein & Cell2019,10,1:0
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