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| 1 | Application of nonlinear chemical fingerprinting to identification,evaluation and clinical use of Glycyrrhiza显示文摘Nonlinear chemical fingerprinting is a new technique for analyzing traditional Chinese medicines (TCMs). We developed such a method and applied it to Glycyrrhiza, a significant TCM. Nonlinear chemical fingerprints were obtained for Glycyrrhiza from four different production areas, and for 14 other TCMs with similar induction time. The calculation of their similarities was based on similarity system theory. Using intuitive visual comparison of the data and the similarity calculation results, Glycyrrhiza was discriminated from the 14 other TCMs. There was a linear relationship between the content of active TCM components and the induction time. This was used to compare the content of active components in Glycyrrhiza from the four different production areas, and establish an equivalent-dose relationship for these four samples. This method provides a new tool for discrimination and evaluation of Glycyrrhiza, and a dosage reference for clinical application of Glycyrrhiza from the four regions studied. | FANG XuanQi ZHANG TaiMing ZHAO Zhe XIANG FengQin LIANG YiZeng WANG Mei ZHU Rong CHEN Su QIAO JunXi | 2010 | Chinese Science Bulletin2010,55,26: | 20 |
| 2 | Determining method,conditional factors,traits and applications of nonlinear chemical fingerprint by using dissipative components in samples显示文摘The thermodynamic systems and dynamic model suitable for determining the nonlinear chemical fingerprints of samples were analyzed.The results indicated that the damp nonlinear chemical reactions in close systems away from the equilibrium and open systems without the complementarity of the dissipation substances have important significance for the throng characterization and whole content analysis of chemical components in samples.Various factors influencing on nonlinear chemical fingerprint,such as reactant species and their concentrations,electrode types,temperature,stir rate,the sort,dosage and granularity of the sample,etc.were amply researched by a nonlinear chemistry reaction,namely,damp B-Z oscillation which used acetone and glucose as the main dissipative substances.In addition,the quantitative information on the whole of chemical components in samples and the traits and applications of the fingerprint were investigated.The method and its important conditions for determining nonlinear chemistry fingerprint used in distinguishing and evaluating complex samples were successfully put forward. | ZHANG TaiMing ZHAO Zhe FANG XuanQi QIAO JunXi XIANG FengQin ZHU Rong LIANG YiZeng DING Feng | 2012 | Science China Chemistry2012,55,2: | 16 |
| 3 | Cigarette Smoking Increases Risk for Incident Metabolic Syndrome in Chinese Men—Shanghai Diabetes Study显示文摘Objective To determine whether smoking increases the risk for developing metabolic syndrome (MetS) in Chinese men.Methods A total of 693 men with no MetS at baseline were followed for 2.9‐5.5 years.Subjects were divided into nonsmokers,ex‐smokers,and current smokers according to baseline smoking status.Results After adjusting for age,education level,alcohol intake,fasting plasma insulin,HOMA‐IR index,and BMI at baseline and weight change,current smokers were dose‐dependently associated with increased risk for developing new MetS compared with nonsmokers.The odds ratio (OR) was 2.131 (95% CI,1.264,3.592;P<0.01) for the NCEPIII definition or 3.083 (95% CI,1.807,5.295;P<0.01) for the JCDCG definition of MetS.Ex‐smokers who had quit for ≥13 years significantly decreased the risk for developing new MetS defined by the JCDCG definition.Compared with nonsmokers,current smokers were significantly associated with increased incidence of hypertriglyceridemia and low HDL‐C.Conclusion Smoking is a risk factor for developing MetS in Chinese men after adjusting for age,education level,alcohol intake,fasting plasma insulin,HOMA‐IR,BMI,and weight change.This could be due to an increased incidence of dyslipidemia.Smoking cessation for >13 years decreased the risk for developing MetS defined by the JCDCG definition. | ZHU YunXia ZHANG MingLiang HOU XuHong LU JunXi PENG LiangPu GU HuiLin WANG Chen JIA WeiPing | 2011 | Biomedical and Environmental Sciences2011,24,5: | 13 |
| 4 | Principle of nonlinear chemical fingerprint by using dissipative components in samples as well as calculation and evaluation of similarity显示文摘Under the conditions of constant temperature and pressure,different influences of samples with different chemical components on the mechanism of nonlinear chemical reaction will cause different changes of the potential-time relationship curve of the nonlinear chemical reaction system.Using it as the character,and using the B-Z nonlinear chemical system to use acetone and substrates in samples as main dissipative substances qua an example,the principle of nonlinear chemical fingerprint has been researched and discussed in detail.At the same time,the general method for calculating the system similarity about nonlinear chemical fingerprint was also put forward,and similarities of nonlinear chemistry fingerprints of different batches of Guhan Yangshengjing and 18 sorts of other samples were calculated by Euclidean distance,correlation coefficient,included angle cosine and system similarity,at the same time,the various similarities were analyzed.The results showed that,both of correlation coefficient and included angle cosine are unable to be used as the criterion for quantitatively evaluating the similarity of nonlinear chemistry fingerprint;as non-parametric similarity,Euclidean distance can accurately reflect the feature differences in the fingerprints,but as parametric similarity,sometimes,Euclidean distance can not accurately reflect the relative extent of characteristic difference in the nonlinear chemical fingerprints;system similarity can most truthfully reflect the characteristic difference in the nonlinear chemical fingerprints,and is the best evaluating method among the four ones.Therefore,system similarity can be used to quantitatively calculate the similar extent between the nonlinear chemical fingerprints.An economical,simple and convenient,easy pushing and effective method for identifying and evaluating complicated samples has successfully been put forward. | ZHANG TaiMing ZHAO Zhe FANG XuanQi QIAO JunXi XIANG FengQin ZHU Rong LIANG YiZeng DING Feng | 2012 | Science China Chemistry2012,55,2: | 13 |
| 5 | Movement of Ordos block and alternation of activity along its boundaries显示文摘The GPS data in and around the Ordos block area indicate that the left-lateral slip rate along the northern or southern margin of the Ordos block is about twice or three times as fast as the right-lateral slip rate along the eastern or western margin of the block. However, many researchers stressed the dextral-slip of the eastern or western boundaries of the Ordos block, and suggested that the block as a whole rotated counterclockwise based on the available geological data. Focusing on the inconsistency, we reexamine the late Cenozoic deformation pattern in the Ordos region based on seismicity data and geodesy data (GPS and leveling) around it. The results indicate that the rigid block-like motion appears to be the basic characteristic of the kinematics of the Ordos region, and this motion is absorbed by the displacement of the faults around the block. When the faults along the northern and southern boundaries of the Ordos block are active, its eastern boundary is inactive. However, if the faults along the eastern boundary are active, the northern and southern are inactive. In recent years, the northern and southern boundaries of the Ordos block are in active. But in the long term, the Ordos block is moving southeastward relative to the Alxa and Yinshan blocks because of the strong pushing of the Tibetan Plateau on its southwestern side, and this deformation is accommodated by the counterclockwise rotation of the block itself. | FAN Junxi (范俊喜) MA Jin (马 瑾) GAN Weijun (甘卫军) | 2003 | Science China Earth Sciences2003,46,z2: | 11 |
| 6 | Detection of serum IgM and IgG for COVID-19 diagnosis显示文摘Dear Editor,Infection with the novel coronavirus(SARS-CoV-2,which is the virus responsible for the coronavirus disease 2019(COVID-19))was first reported in Wuhan,China on December 31,2019.The outbreak of COVID-19 remains ongoing and was linked to more than 80,000 infected patients and more than 3,000 deaths in China as of March 7,2020(Holshue et al.,2020). | Ling Zhong Junlan Chuan Bo Gong Ping Shuai Yu Zhou Yi Zhang Zhilin Jiang Dingding Zhang Xiaoqi Liu Shi Ma Yi Huang He Lin Qingwei Wang Lulin Huang Dan Jiang Fang Hao Juan Tang Chunqi Zheng Hua Yu Zhibin Wang Qi Jiang Tao Zeng Mei Luo Fanwei Zeng Fanxin Zeng Jianghai Liu Junxi Tian Yu Xu Tengxiang Long Kaiju Xu Xingxiang Yang Yuping Liu Yi Shi Li Jiang Zhenglin Yang | 2020 | Science China(Life Sciences)2020,63,5: | 8 |
| 7 | Deep ultraviolet light-emitting diodes based on a well-ordered AlGaN nanorod array显示文摘The nanorod structure is an alternative scheme to develop high-efficiency deep ultraviolet light-emitting diodes(DUV LEDs). In this paper, we first report the electrically injected 274-nm AlGaN nanorod array DUV LEDs fabricated by the nanosphere lithography and dry-etching technique. Nanorod DUV LED devices with good electrical properties are successfully realized. Compared to planar DUV LEDs, nanorod DUV LEDs present>2.5 times improvement in light output power and external quantum efficiency. The internal quantum efficiency of nanorod LEDs increases by 1.2 times due to the transformation of carriers from the exciton to the free electron–hole, possibly driven by the interface state effect of the nanorod sidewall surface. In addition, the nanorod array significantly facilitates photons escaping from the interior of LEDs along the vertical direction, contributing to improved light extraction efficiency. A three-dimensional finite-different time-domain simulation is performed to analyze further in detail the TE-and TM-polarized photon extraction mechanisms of the nanostructure. Our results demonstrate the nanorod structure is a good candidate for high-efficiency DUV emitters. | LIANG ZHANG YANAN GUO JIANCHANG YAN QINGQING WU YI LU ZHUOHUI WU WEN GU XUECHENG WEI JUNXI WANG JINMIN LI | 2019 | Photonics Research2019,7,9: | 8 |
| 8 | Growth and characterization of 0.8-μm gate length AlGaN/GaN HEMTs on sapphire substrates显示文摘AlGaN/GaN high electron mobility transistor (HEMT) structures were grown on 2 inch sapphire substrates by MOCVD, and 0.8-μm gate length devices were fabricated and measured. It is shown by resistance mapping that the HEMT structures have an average sheet resistance of approximately 380 ?/sq with a uniformity of more than 96%. The 1-mm gate width devices using the materials yielded a pulsed drain current of 784 mA/mm at Vgs=0.5 V and Vds=7 V with an extrinsic transconductance of 200 mS/mm. A 20-GHz unity current gain cutoff frequency (?T ) and a 28-GHz maximum oscillation frequency (?max) were obtained. The device with a 0.6-mm gate width yielded a total output power of 2.0 W/mm (power density of 3.33 W/mm) with 41% power added efficiency (PAE) at 4 GHz. | WANG Xiaoliang WANG Cuimei HU Guoxin WANG Junxi RAN Junxue FANG Cebao LI Jianping ZENG Yiping LI Jinmin LIU Xinyu LIU Jian QIAN He | 2005 | Science in China(Series F)2005,48,6: | 7 |
| 9 | Ultraviolet communication technique and its application显示文摘With recent developments of deep ultraviolet(DUV)light-emitting diodes and solar-blind detectors,UV communication(UVC)shows great potential in replacing traditional wireless communication in more and more scenarios.Based on the atmospheric scattering of UV radiation,UVC has gained considerable attention due to its non-line-of-sight ability,omnidirectional communication links and low background noise.These advantages make UVC an ideal option for covert secure communication,especially for military communication.In this review,we present the history and working principle of UVC with a special focus on its light sources and detectors.Comprehensive comparison and application of its light sources and detectors are provided to the best of our knowledge.We further discuss the future application and outlook of UVC.Hopefully,this review will offer valuable insights into the future development of UVC. | Liang Guo Yanan Guo Junxi Wang Tongbo Wei | 2021 | Journal of Semiconductors2021,42,8: | 3 |
| 10 | Building Osteogenic Microenvironments with a Double-Network Composite Hydrogel for Bone Repair显示文摘The critical factor determining the in vivo effect of bone repair materials is the microenvironment,which greatly depends on their abilities to promote vascularization and bone formation.However,implant materials are far from ideal candidates for guiding bone regeneration due to their deficient angiogenic and osteogenic microenvironments.Herein,a double-network composite hydrogel combining vascular endothelial growth factor(VEGF)-mimetic peptide with hydroxyapatite(HA)precursor was developed to build an osteogenic microenvironment for bone repair.The hydrogel was prepared by mixing acrylatedβ-cyclodextrins and octacalcium phosphate(OCP),an HA precursor,with gelatin solution,followed by ultraviolet photo-crosslinking.To improve the angiogenic potential of the hydrogel,QK,a VEGF-mimicking peptide,was loaded in acrylatedβ-cyclodextrins.The QK-loaded hydrogel promoted tube formation of human umbilical vein endothelial cells and upregulated the expression of angiogenesis-related genes,such as Flt1,Kdr,and VEGF,in bone marrow mesenchymal stem cells.Moreover,QK could recruit bone marrow mesenchymal stem cells.Furthermore,OCP in the composite hydrogel could be transformed into HA and release calcium ions facilitating bone regeneration.The double-network composite hydrogel integrated QK and OCP showed obvious osteoinductive activity.The results of animal experiments showed that the composite hydrogel enhanced bone regeneration in skull defects of rats,due to perfect synergistic effects of QK and OCP on vascularized bone regeneration.In summary,improving the angiogenic and osteogenic microenvironments by our double-network composite hydrogel shows promising prospects for bone repair. | Jiaying Li Jinjin Ma Qian Feng En Xie Qingchen Meng Wenmiao Shu Junxi Wu Liming Bian Fengxuan Han Bin Li | 2023 | Research2023,,3: | 3 |
| 11 | TPTVer: A Trusted Third Party Based Trusted Verifier for Multi-Layered Outsourced Big Data System in Cloud Environment显示文摘Cloud computing is very useful for big data owner who doesn't want to manage IT infrastructure and big data technique details. However, it is hard for big data owner to trust multi-layer outsourced big data system in cloud environment and to verify which outsourced service leads to the problem. Similarly, the cloud service provider cannot simply trust the data computation applications. At last,the verification data itself may also leak the sensitive information from the cloud service provider and data owner. We propose a new three-level definition of the verification, threat model, corresponding trusted policies based on different roles for outsourced big data system in cloud. We also provide two policy enforcement methods for building trusted data computation environment by measuring both the Map Reduce application and its behaviors based on trusted computing and aspect-oriented programming. To prevent sensitive information leakage from verification process,we provide a privacy-preserved verification method. Finally, we implement the TPTVer, a Trusted third Party based Trusted Verifier as a proof of concept system. Our evaluation and analysis show that TPTVer can provide trusted verification for multi-layered outsourced big data system in the cloud with low overhead. | Jing Zhan Xudong Fan Lei Cai Yaqi Gao Junxi Zhuang | 2018 | China Communications2018,15,2: | 3 |
| 12 | Phosphor-free single chip GaN-based white light emitting diodes with a moderate color rendering index and significantly enhanced communications bandwidth显示文摘To achieve high quality lighting and visible light communication(VLC)simultaneously,Ga N based white light emitting diodes(WLEDs)oriented for lighting in VLC has attracted great interest.However,the overall bandwidth of conventional phosphor converted WLEDs is limited by the long lifetime of phosphor,the slow Stokes transfer process,the resistance-capacitance(RC)time delay,and the quantum-confined Stark effect(QCSE).Here by adopting a self-assembled In Ga N quantum dots(QDs)structure,we have fabricated phosphor-free single chip WLEDs with tunable correlated color temperature(CCT,from 1600 K to 6000 K),a broadband spectrum,a moderate color rendering index(CRI)of 75,and a significantly improved modulation bandwidth(maximum of150 MHz)at a low current density of 72 A∕cm^2.The broadband spectrum and high modulation bandwidth are ascribed to the capture of carriers by different localized states of In Ga N QDs with alleviative QCSE as compared to the traditional In Ga N/Ga N quantum well(QW)structures.We believe the approach reported in this work will find its potential application in Ga N WLEDs and advance the development of semiconductor lighting-communication integration. | Rongqiao Wan Xiang Gao Liancheng Wang Shuo Zhang Xiongbin Chen Zhiqiang Liu Xiaoyan Yi Junxi Wang Junhui Li Wenhui Zhu Jinmin Li | 2020 | Photonics Research2020,8,7: | 3 |
| 13 | Incidence of Macrosomia in Rural Areas—Henan Province,China,2013–2017显示文摘Introduction:Macrosomia has short-term and long-term adverse health effects and is thus an important public health concern.Recent decades have witnessed increasing incidence of macrosomia in many countries.Methods:The present study used a large population-based birth cohort study to depict incidence of macrosomia among live births in rural areas of Henan Province of China from 2013 to 2017.Results:Among the 1,262,916 births,82,353 were cases of macrosomia.The overall incidence of all types of macrosomia,of macrosomia with birth weight<4,500 g,and of macrosomia with birth weight≥4,500 g were 6.52%,5.30%,and 1.22%,respectively.From 2013 to 2017,the incidence of macrosomia decreased by 31.3%from 7.96%in 2013 to 5.47%in 2017(X^(2)_(trend)=946.96,P_(trend)<0.001).Male infants and infants≥42 gestational weeks had significantly higher incidence of macrosomia than that of female infants and infants<42 gestational weeks(P<0.001).Conclusion:Gestational weight control through nutrition management and physical activities during pregnancy are needed to reduce incidence of macrosomia. | Shiqi Lin Jian Chai Jiajia Li Xuejun Shang Lijun Pei Lifang Jiang Junxi Zhang Panpan Sun Wei Dong Yuhong Wang Dezhuan Zhou | 2021 | China CDC weekly2021,3,37: | 3 |
| 14 | Mapping the elastic properties of two-dimensional MoS_(2) via bimodal atomic force microscopy and finite element simulation显示文摘Elasticity is a fundamental mechanical property of two-dimensional(2D)materials,and is critical for their application as well as for strain engineering.However,accurate measurement of the elastic modulus of 2D materials remains a challenge,and the conventional suspension method suffers from a number of drawbacks.In this work,we demonstrate a method to map the in-plane Young’s modulus of mono-and bi-layer MoS_(2) on a substrate with high spatial resolution.Bimodal atomic force microscopy is used to accurately map the effective spring constant between the microscope tip and sample,and a finite element method is developed to quantitatively account for the effect of substrate stiffness on deformation.Using these methods,the in-plane Young’s modulus of monolayer MoS_(2) can be decoupled from the substrate and determined as 265±13 GPa,broadly consistent with previous reports though with substantially smaller uncertainty.It is also found that the elasticity of mono-and bi-layer MoS_(2) cannot be differentiated,which is confirmed by the first principles calculations.This method provides a convenient,robust and accurate means to map the in-plane Young’s modulus of 2D materials on a substrate. | Yuhao Li Chuanbin Yu Yingye Gan Peng Jiang Junxi Yu Yun Ou Dai-Feng Zou Cheng Huang Jiahong Wang Tingting Jia Qian Luo Xue-Feng Yu Huijuan Zhao Cun-Fa Gao Jiangyu Li | 2018 | npj Computational Materials2018,,1: | 3 |
| 15 | Effect of steam explosion and microbial fermentation on cellulose and lignin degradation of corn stover显示文摘 | Juan Chang Wei Cheng Qingqiang Yin Ruiyu Zuo Andong Song Qiuhong Zheng Ping Wang Xiao Wang Junxi Liu | 2011 | Bioresource Technology2011,,: | 3 |
| 16 | Salt-washing Improvement of the Electrochemical Properties of Zeolite-sulfur Cathode for Lithium-sulfur Batteries显示文摘We displayed that the low-cost natural zeolite with molecular sieve structure can be used as the carrier of sulfur in lithium-sulfur batteries.Meanwhile,a simple salt-washing method was implemented on zeolite for dredging the internal microchannel to improve the ability of adsorption,ion exchange and sulfur loading.The experimental results show that the first specific discharge capacities of zeolite/S and salt-washed zeolite/S cathode under 0.2 C current density are 950.7 and1116.8 mAh/g,respectively,and corresponding discharge capacities remain at 350.6 and 604.2 mAh/g after 300 cycles.The first specific discharge capacity of salt-washed zeolite/S composite is 17.5%higher than that sample without salt-washing,and the corresponding ionic conductivity is improved. | 何妍佳 杜子博 SU Yong YU Junxi CHEN Feifan 谢淑红 潘俊安 | 2020 | Journal of Wuhan University of Technology(Materials Science)2020,35,4: | 2 |
| 17 | Study of the morphology evolution of AlN grown on nanopatterned sapphire substrate显示文摘This study focused on the evolution of growth front about AlN growth on nano-patterned sapphire substrate by metal-organic chemical vapor deposition.The substrate with concave cones was fabricated by nano-imprint lithography and wet etching.Two samples with different epitaxy procedures were fabricated,manifesting as two-dimensional growth mode and three-dimensional growth mode,respectively.The results showed that growth temperature deeply influenced the growth modes and thus played a critical role in the coalescence of AlN.At a relatively high temperature,the AlN epilayer was progressively coalescence and the growth mode was two-dimensional.In this case,we found that the inclined semi-polar facets arising in the process of coalescence were{112^-1}type.But when decreasing the temperature,the{112^-2}semi-polar facets arose,leading to inverse pyramid morphology and obtaining the three-dimensional growth mode.The 3 D inverse pyramid AlN structure could be used for realizing 3 D semi-polar UV-LED or facet-controlled epitaxial lateral overgrowth of AlN. | Zhuohui Wu Jianchang Yan Yanan Guo Liang Zhang Yi Lu Xuecheng Wei Junxi Wang Jinmin Li | 2019 | Journal of Semiconductors2019,40,12: | 2 |
| 18 | MOCVD-grown high-mobility Al 0.3 Ga 0.7 N/AlN/GaN HEMT structure on sapphire substrate显示文摘 | Xiaoliang Wang Cuimei Wang Guoxin Hu Hongling Xiao Cebao Fang Junxi Wang Junxue Ran Jianping Li Jinmin Li Zhanguo Wang | 2006 | Journal of Crystal Growth2006,,: | 2 |
| 19 | Contribution of Temperature Increase to Restrain the Transmission of COVID-19显示文摘The COVID-19 outbreak has already become a global pandemic and containing this rapid worldwide transmission is of great challenge.The impacts of temperature and humidity on the COVID-19 transmission rate are still under discussion.Here,we elucidated these relationships by utilizing two unique scenarios,repeated measurement and natural experiment,using the COVID-19 cases reported from January 23–February 21,2020,in China.The modeling results revealed that higher temperature was most strongly associated with decreased COVID-19 transmission at a lag time of 8 days.Relative humidity(RH)appeared to have only a slight effect.These findings were verified by assessing SARSCoV-2 infectivity under the relevant conditions of temperature(4C–37C)and RH(>40%).We concluded that temperature increase made an important,but not determined,contribution to restrain the COVID19 outbreak in China.It suggests that the emphasis of other effective controlling polices should be strictly implemented to restrain COVID19 transmission in cold seasons. | Mengyuan Ren Rongjuan Pei Bahabaike Jiangtulu Junxi Chen Tao Xue Guofeng Shen Xiaoru Yuan Kexin Li Changxin Lan Zhen Chen Xinwen Chen Yun Wang Xiaoqian Jia Zewu Li Audil Rashid Tippawan Prapamontol Xiuge Zhao Zhaomin Dong Yali Zhang Le Zhang Rongwei Ye Zhiwen Li Wuxiang Guan Bin Wang | 2021 | The Innovation2021,2,1: | 2 |
| 20 | Implementation of slow and smooth etching of GaN by inductively coupled plasma显示文摘Slow and smooth etching of gallium nitride(GaN) by BCl_3/Cl_2-based inductively coupled plasma(ICP)is investigated in this paper. The effects of etch parameters, including ICP power, radio frequency(RF) power, the flow rate of Cl_2 and BCl_3, on GaN etch rate and etch surface roughness RMS are discussed. A new model is suggested to explain the impact mechanism of the BCl_3 flow rate on etch surface roughness. An optimized etch result of a slow and smooth etch surface was obtained; the etch rate and RMS were 0.36 ?/s and 0.9 nm, respectively. | Xilin Li Ping Ma Xiaoli Ji Tongbo Wei Xiaoyu Tan Junxi Wang Jinmin Li | 2018 | Journal of Semiconductors2018,39,11: | 2 |