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| 1 | Analysis of pesticide residues in commercially available chenpi using a modified QuEChERS method and GC-MS/MS determination显示文摘To ensure the safety of the commercially available chenpi,a convenient and fast analytical method was developed for the determination of 133 pesticide residues in chenpi using gas chromatography-tandem mass spectrometry(GC-MS/MS).In this study,different extraction solvents,redissolution solvents and adsorbents were tested according to the recovery and purification effect to obtain a modified QuEChERS method.The samples were extracted with acetonitrile.During the clean-up step,octadecyl-modified silica(C18)and graphitized carbon black(GCB)were selected,and aminopropyl(NH2)was used instead of primary secondary amine(PSA)because of its weaker ion exchange capacity which had little effect on the recovery of ditalimfos.Samples were quantified by matrix-matched calibration with internal standards.All pesticides showed good linearity in the respective range,both with values of r2>0.99.The average recoveries of the pesticides spiked samples ranged from 70.0% to 112.2% with the RSDs of 0.2%–14.4%.The modified QuEChERS method was validated and applied to twenty real samples.Five pesticides were found in eight batches,but no pesticide exceeded the maximum residue limits(MRL,MRL reference to European commission). | Shuang Li Peipei Yu Ceng Zhou Ling Tong Dongxiang Li Zhiguo Yu Yunli Zhao | 2020 | Journal of Pharmaceutical Analysis2020，10，1： | 34 |
| 2 | Early Cretaceous Climate Changes Recorded in Magnetic Susceptibility and Color Index Variations of the Lower Liupanshan Group, Central China显示文摘This study carried out comprehensive analysis on sedimentology, magnetic susceptibility(χlf) and color data of the continental sediments of the Liupanshan Group in Central China so as to obtain climatic change information during the 129.14–122.98 Ma interval. Based on the results of the ?lf and of the redness(a*), the section can be divided into two segments:(1) 129.14–126.3 Ma, with the lowest ?lf values and strongly variable relatively high values of redness and(2) 126.3–122.98 Ma, with high ?lf values and relatively low redness. Analysis of the lithology and facies as well as the magnetic minerals and their contents points to a detrital origin of the magnetic minerals and this allow us to interpret the relationship between magnetic susceptibility variations and climate changes. Our study shows that the climate was significantly dry and hot during the whole studied interval although the interval between 126.3 Ma and 122.98 was a little bit cooler with increased humidity. | DAI Shuang ZHU Qiang HUANG Yongbo DA SILVA Anne-Christine ZHAO Jie LIU Junwei KONG Li PENG Dongxiang LUO Lingling YAN Ningyun WANG Wenjie ZHANG Xiang | 2016 | Acta Geologica Sinica(English Edition)2016，90，3： | 3 |
| 3 | Op- tical-gain enhancement of carbosilane dendrimer contai- ning fluorescein groups in the periphery 显示文摘 | LI Chunfang DONG Xianzi LI Dongxiang | 2010 | Journal of Luminescence2010，130，4： | 1 |
| 4 | Sodium Bis- muth Titanate-based Lead-free Piezoceramics Prepared by Aque- ous Gelcasting 显示文摘 | ZHOU Dongxiang LI Hui GONG Shuping | 2008 | Journal of the American Ceramic Society2008，91，9： | 1 |
| 5 | Determining the contributions of urbanisation and climate change to NPP variations over the last decade in the Yangtze River Delta, China显示文摘 | Shaohua Wu Shenglu Zhou Dongxiang Chen Zongqiang Wei Liang Dai Xingong Li | 2014 | Science of the Total Environment2014，，： | 1 |
| 6 | Immobilization of glucose oxidase onto gold nanoparti- cles with enhanced thermostability显示文摘 | Dongxiang Li Qiang He Yue Cui Li Duan Junbai Li | 2007 | Biochemical and Biophysical Research Communications2007，355，： | 1 |
| 7 | Dendritic amphiphiles of carbosilane dendrimers with peripheral PEG for drug encapsulation显示文摘 | Li Chunfang Li Dongxiang Qiu Chuanlong | | 0，，： | 1 |
| 8 | Determining the contributions of urbanisation and climate change to NPP variations over the last decade in the Yangtze River Delta, China显示文摘 | Shaohua Wu Shenglu Zhou Dongxiang Chen Zongqiang Wei Liang Dai Xingong Li | 2014 | Science of the Total Environment2014，，： | 1 |
| 9 | Revealing Functional Significance of Interleukin-2 Glycopro-teoforms Enabled by Expressed Serine Ligation显示文摘Naturally occurring interleukin-2(IL-2)is a pleiotropic glycoprotein that regulates immune responses by controlling the differentia-tion and homeostasis of T cells.Non-glycosylated IL-2 has been used in clinical settings for three decades.However,the function of the O-glycan of native IL-2 remains elusive.Herein,to stress this issue,we report a highly efficient semi-synthesis of homogeneous glycosylated IL-2 with various glycoproteoforms on a multi-milligram scale.The glycopeptide fragment was prepared by chemical synthesis and then merged with recombinant fragment via a serine ligation to generate the desired glycoprotein in a single opera-tion.Biological evaluation of the homogenous glycoprotein library reveals that the activity of IL-2 in activating individual T cell subset is glycan dependent,thus highlighting the possibility of further improving current clinical medicine. | Jie Zhao Jiazhi Liu Xinnan Liu Qi Cao Hongbo Zhao Lizhen Liu Farong Ye Can Wang Hong Shao Dongxiang Xue Houchao Tao Bin Li Biao Yu Ping Wang | 2022 | Chinese Journal of Chemistry2022，40，7： | 1 |
| 10 | Appli- cation of the ensemble empirical mode decomposition and Hilbert transform to pedestal looseness study of direct-drive wind turbine显示文摘 | An Xueli Jiang Dongxiang Li Shaohua | 2011 | Energy2011，36，9： | 1 |
| 11 | Application of the ensemble empirical mode decomposition and Hilberttransform to pedestal looseness study of direct-drive wind turbine 显示文摘 | An Xueli Jiang Dongxiang Li Shaohua | 2011 | Energy2011，36，9： | 1 |
| 12 | Poly (ethylene glycol) haired layered double hydroxides as biocompatible nanovehi cles: Morphology and dispersity study显示文摘 | Li Dongxiang Xu Xinjie Xu Jie | 2011 | Colloids and Surfaces A: Physicochemieal and Engineering Aspects2011，384，13： | 1 |
| 13 | Emulsification for castor biomass oil显示文摘The effect of the emulsifier formula on the stability of castor oil-water system was studied through compounding three groups of emulsifiers from the aspects of stability factor of absorbance,centrifuge stability,demulsification time in quiescence,appearance of the droplets,and viscosity.The best emulsifier formula for castor biomass oil was the composite formula of sorbitan monooleate and polyoxyethylene sorbitan monostearate.Correlation exists between the stability of emulsion and the viscosity/particle size of the droplets,with better stability in the case of greater viscosity or narrower distribution of particle size in the emulsion of castor oil-water system.Methanol added to the castor oil-water system may decrease the viscosity of the emulsion.Comparing the castor oil-water emulsion with methanol-castor oil-water emulsion,the optimal hydrophilic and lipophilic balance(HLB)value based on castor oil-water system was acquired between 6.6 and 7.5,while the optimal HLB value based on the methanol-castor oil-water system was between 5.5 and 6.0.The optimal HLB value of methanolcastor oil-water system gradually moved to that of castor oil-water emulsion with adding more water. | Dongxiang ZHANG Yuanping LIN Anmei LI V.V.TARASOV | 2011 | Frontiers of Chemical Science and Engineering2011，5，1： | 1 |
| 14 | Application of the ensemble empirical mode decomposition and Hilbert transform to pedestal looseness study of direct-drive wind turbine显示文摘 | Xueli An Dongxiang Jiang Shaohua Li Minghao Zhao | 2011 | Energy2011，，9： | 1 |
| 15 | Numerical solution and experiment of a self-Q-switched 946nm Cr, Nd: YAG laser显示文摘 | Li Qinan Feng Li Zhang Dongxiang et at | 2008 | Applied Physics B-Lasers and Optics2008，93，： | 1 |
| 16 | Measurement of Ultra-short Pulse-width by Using Noncollinear Sum-Frequency Generation显示文摘The third-order correlation function G^((3))(0,T)can be measured by using the method of noncollinear sum-frequency,by which the pulse-width of the ultr-ashort pulse light produced by modelocked laser is deduced to be 35ps.This result is the same as that by other standrd method. | LI Ming ZHANG Xiulan LIU Xiang ZHANG Dongxiang DENG Daoqun | 1992 | Chinese Physics Letters1992，9，12： | 0 |
| 17 | Duration of humoral immunity from smallpox vaccination and its cross-reaction with Mpox virus显示文摘The ongoing pandemic caused by mpox virus(MPxV)has become an international public health emergency that poses a significant threat to global health.The vaccinia virus Tiantan strain(VTT)was used to vaccinate against smallpox in China 42 years ago.It is urgent to assess the level of immunity to smallpox in individuals vaccinated 43 or more years ago and evaluate their immunological susceptibility to MPxV. | Entao Li Xiaoping Guo Dongxiang Hong Qizan Gong Wenyu Xie Tingting Li Jian Wang Xia Chuai Sandra Chiu | 2023 | Signal Transduction and Targeted Therapy2023，8，10： | 0 |
| 18 | Fluorination-mitigated high-current degradation of amorphous InGaZnO thin-film transistors显示文摘As growing applications demand higher driving currents of oxide semiconductor thin-film transistors(TFTs),severe instabilities and even hard breakdown under high-current stress(HCS)become critical challenges.In this work,the triggering voltage of HCS-induced self-heating(SH)degradation is defined in the output characteristics of amorphous indium-galliumzinc oxide(a-IGZO)TFTs,and used to quantitatively evaluate the thermal generation process of channel donor defects.The fluorinated a-IGZO(a-IGZO:F)was adopted to effectively retard the triggering of the self-heating(SH)effect,and was supposed to originate from the less population of initial deep-state defects and a slower rate of thermal defect transition in a-IGZO:F.The proposed scheme noticeably enhances the high-current applications of oxide TFTs. | Yanxin Wang Jiye Li Fayang Liu Dongxiang Luo Yunping Wang Shengdong Zhang Lei Lu | 2023 | Journal of Semiconductors2023，44，9： | 0 |
| 19 | Cultivation of Hippeastrum vittatum Embryogenic Calli and Their Sensitivity to Antibiotics显示文摘In this study,an embryogenic callus induction and proliferation system for Hippeastrum vittatum was established,with the tender bulbs as explants. And then the sensitivity of the explants and calli to kanamycin and hygromycin was evaluated. The results suggested that the embryogenic calli were induced from tender bulbs and cultured in Murashige and Skoog( MS) medium supplemented with 0. 5 mg/L N-phenyl-N'-1,2,3-thiadiazol-5-ylurea( TDZ),1. 0 mg/L 2,4-dichlorophenoxyacetic acid( 2,4-D),and 30 g/L sucrose( pH5. 8) in the dark at 25 ± 1 ℃. Further study of the influence of kanamycin and hygromycin on callus induction and multiplication showed that,the lethal doses of kanamycin and hygromycin to bulb explants were 100 and 30 mg/L,respectively. All explants of H. vittatum died on the medium supplemented with 100 mg/L kanamycin or 30 mg/L hygromycin at the induction stage,and callus proliferation was completely inhibited by 100 mg/L kanamycin or 25 mg/L hygromycin,and all the calli died at last. These results will provide important reference for further studies of transgenic H. vittatum. | Bo YU Min LIU Yu ZHU Aidong ZHONG Lili HUANG Dongxiang ZHU Chunhui LI Genfa ZHU Yingbo SUN | 2018 | Agricultural Biotechnology2018，7，1： | 0 |
| 20 | Utilization of clean energy and future trend of Antarctic research stations显示文摘The polar regions are rich in resources with high scientific value.Polar scientific research is of great significance to natural environment,climate,astronomy and geology.Polar scientific research is closely related to polar energy supply.Most research stations still use fossil fuels as the main source of power generation.This kind of power supply not only pollutes the environment,but also consumes a lot of manpower and material resources.As a kind of renewable energy such as solar energy and wind energy,renewable energy not only has the characteristics of sustainable development,but also has the characteristics of local power generation and transportation cost saving.At present,several countries have started the construction and application of polar renewable energy,and achieved good results in some Antarctic stations.Based on the investigation and summary of the application of renewable energy in various countries,this paper discusses the development trend of polar energy supply in the future,and provides a clear idea and direction for the development of polar renewable energy. | LI Zhao LÜDongxiang SUN Zilu LI Chuan | 2021 | Advances in Polar Science2021，32，3： | 0 |
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