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| 1 | The ultraviolet and blue luminescence properties of ZnO:Zn thin film显示文摘The ultraviolet (UV) and blue luminescence of Zn-rich zinc oxide thin film deposited by electron-beam evaporation have been investigated at room temperature (RT). We observed that the UV and blue electroluminescence (EL) emission band centered around 480 nm which is blue shifted in comparison with that of the ZnO thin film prepared by low pressure metal organic chemical vapor deposition (LP MOCVD). The UV emission is much stronger than blue emission in the photoluminescence (PL) spectra. The field-induced ionization of excited luminescent centers of ZnO:Zn thin film at high electric field and the difference between PL and EL are discussed. The experiments show that the ZnO:Zn thin film provides a hopeful new mechanism to obtain UV and blue emission. | Lixin Yi Zheng Xu Yanbing Hou Xiqing Zhang Yongsheng Wang Xurong Xu | 2001 | Chinese Science Bulletin2001，46，14： | 6 |
| 2 | Pollution characteristics and health risk assessment of polycyclic aromatic hydrocarbons and nitrated polycyclic aromatic hydrocarbons during heating season in Beijing显示文摘Polycyclic aromatic hydrocarbons(PAHs)and their nitrated derivatives(NPAHs)attract continuous attention due to their outstanding carcinogenicity and mutagenicity.In order to investigate the diurnal variations,sources,formation mechanism,and health risk assessment of them in heating season,particulate matter(PM)were collected in Beijing urban area from December 26,2017 to January 17,2018.PAHs and NPAHs in PM were quantitatively analyzed via gas chromatography-mass spectrometry(GC-MS).Average daily concentrations of PAHs and NPAHs were(78±54)ng/m^(3)and(783±684)pg/m^(3),respectively.The concentrations of them were significantly higher at nighttime than at daytime,and NPAHs concentrations were 1-2 orders of magnitude lower than PAHs concentrations.In the heating season,the dominant species of PAHs include benzo[b]fluoranthene,fluoranthene,pyrene,and chrysene,while 9-nitroanthracene,2+3-nitrofluoranthene,and 2-nitropyrene were dominant species for NPAHs.NPAHs were found to have a single peak during heating and to be primarily distributed in the 0.4-0.7μm particle size.Primary emissions such as biomass burning,coal combustion,and traffic emissions were the major sources of PAHs.NPAHs were produced by the primary source of vehicle emissions and the secondary reaction triggered by OH radicals,as well as biomass burning during daytime.According to the health risk assessment,the total carcinogenic risk was higher in adults than in children.While upon oral ingestion,the carcinogenic risk in children was higher than that of adults,but the risk of adults was higher than children through skin contact and respiratory inhalation. | Xurong Bai Jie Wei Yanqin Ren Rui Gao Fahe Chai Hong Li Fei Xu Yuxue Kong | 2023 | Journal of Environmental Sciences2023，，1： | 3 |
| 3 | Influence of viscosity on the phase transformation of amorphous calcium carbonate in fluids:An understanding of the medium effect in biomimetic mineralization显示文摘Biological mineral generation via an amorphous precursor is a topic of great current interest. Various factors such as the temperature, solution composition and presence of organic molecules can influence this important inorganic process. Here we demonstrate that this mineral transformation can actually readily be regulated by solution viscosity, a fundamental but often overlooked property. In our experiment, amorphous calcium carbonate (ACC), a key model compound in biomimetic mineralization studies, is synthesized and dispersed into inert dispersants with different viscosities and the crystallization process is examined by using FT-IR spectroscopy and XRD. It is found that the inhibition of the transformation of ACC becomes more significant with increasing fluid viscosity. This phenomenon can be explained by the differences in ion diffusion in different media. Furthermore, the resulting crystals always have different morphologies and size distributions although they all have the calcite structure. This study implies that the importance of the fluid medium cannot be ignored in building a complete understanding of biological control of biomimetic crystallizations. | XIE YiDong, XU XuRong & TANG RuiKang Center for Biomaterials and Biopathways and Department of Chemistry, Zhejiang University, Hangzhou 310027, China | 2010 | Science China Chemistry2010，53，10： | 2 |
| 4 | Electroluminescence in organic single-layer light-emitting diodes at high fields显示文摘 | Shengyi Yang Zheng Xu Zhenjia Wang Yanbing Hou Xurong Xu Xiqing Zhang | 2001 | Science in China Series : Information Sciences2001，，3： | 1 |
| 5 | Influence of the electric field on carriers recombination zone in bilayer organic electroluminescent device显示文摘The electroluminescence (EL) of bilayer devices (ITO/Polymer/Alqa/AI) made from two PPV derivatives (MN-PPV and MEH-PPV), respectively, and the influence of the organic layers’ thickness on the characteristics of the device are investigated. Different spectra and variations are observed for different thicknesses of Alq3 layer in this bilayer organic light-emitting diodes (LEDs) as increasing applied bias. Based on the energy level and field-assisted tunneling at the interface, we attributed these phenomena to electric field redistribution in the device and field-assisted charges being transported and tunneling through energy barrier at high electric field. | Shengyi Yang Zhenjia Wang Zheng Xu Xiaohong Chen Yanbing Hou Xurong Xu | 2000 | Chinese Science Bulletin2000，45，17： | 1 |
| 6 | Transfor- mation of amorphous calcium carbonate into aragonite 显示文摘 | Zhuona Zhang Yidong Xie Xurong Xu | 2012 | Journal of Crystal Growth2012，343，1： | 1 |
| 7 | The role of Sm ions in optical storage of SrS : Eu, Sm显示文摘 | Zhiyi He Yongsheng Wang Li Sun Yanbing Hou Xurong Xu | 2001 | Science in China Series A: Mathematics2001，，9： | 1 |
| 8 | Two modes of transformation of amorphous calcium carbonate films in air 显示文摘 | Xu Xurong Han Joong Tark Kim Do Hwan Cho Kilwon | 2006 | The Journal of Physical Chemistry B2006，110，6： | 1 |
| 9 | Green to white to blue OLEDs by using PBD as a chromaticity-tuning layer显示文摘 | Yuanmin Wang Feng Teng Changqi Ma Zheng Xu Yanbing Hou Shengyi Yang Yongsheng Wang Xurong Xu | 2004 | Displays2004，，5： | 1 |
| 10 | Mechanism of photostimulated luminescence: BaFCl:Eu2+显示文摘 | Zhao Hui Wang Yongsheng Xu Zheng Tang Huijun Xu Xurong | 1999 | Czechoslovak Journal of Physics1999，，8： | 1 |
| 11 | Impacts of meteorology and emission variations on the heavy air pollution episode in North China around the 2020 Spring Festival显示文摘Based on the Weather Research and Forecasting model and the Models-3 community multi-scale air quality model(WRF-CMAQ),this study analyzes the impacts of meteorological conditions and changes in air pollutant emissions on the heavy air pollution episode occurred over North China around the 2020 Spring Festival(January to Februray 2020).Regional reductions in air pollutant emissions required to eliminate the PM2.5 heavy pollution episode are also quantified.Our results found that meteorological conditions for the Beijing-Tianjin-Hebei and surrounding'2+26'cities are the worst during the heavy pollution episode around the 2020 Spring Festival as compared with two other typical heavy pollution episodes that occurred after 2015.However,because of the substantial reductions in air pollutant emissions in the'2+26'cities in recent years,and the32%extra reduction in emissions during January to February 2020 compared with the baseline emission levels of the autumn and winter of 2019 to 2020,the maximum PM2.5 level during this heavy pollution episode around the 2020 Spring Festival was much lower than that in the other two typical episodes.Yet,these emission reductions are still not enough to eliminate regional heavy pollution episodes.Compared with the actual emission levels during January to February 2020,a 20%extra reduction in air pollutant emissions in the'2+26'cities(or a 45%extra reduction compared with baseline emission levels of the autumn and winter of 2019 to 2020)could help to generally eliminate regionwide severe pollution episodes,and avoid heavy pollution episodes that last three or more consecutive days in Beijing;a 40%extra reduction in emissions(or a 60%extra reduction compared with baseline emission levels of the autumn and winter of 2019 to 2020)could help to generally eliminate regionwide and continuous heavy pollution episodes.Our analysis finds that during the clean period after the heavy pollution episode around the 2020 Spring Festival,the regionwide heavy pollution episode would only occur with at least a 10-fold increase in air pollutant emissions. | Wenbo XUE Xurong SHI Gang YAN Jinnan WANG Yanling XU Qian TANG Yanli WANG Yixuan ZHENG Yu LEI | 2021 | Science China Earth Sciences2021，64，2： | 1 |
| 12 | Electron-ion collider in China显示文摘Lepton scattering is an established ideal tool for studying inner structure of small particles such as nucleons as well as nuclei.As a future high energy nuclear physics project,an Electron-ion collider in China(EicC)has been proposed.It will be constructed based on an upgraded heavy-ion accelerator,High Intensity heavy-ion Accelerator Facility(HIAF)which is currently under construction,together with a new electron ring.The proposed collider will provide highly polarized electrons(with a po-larization of 80%)and protons(with a polarization of 70%)with variable center of mass energies from 15 to 20 GeV and the luminosity of(2–3)×1033 cm^(−2)·s^(−1).Polarized deuterons and Helium-3,as well as unpolarized ion beams from Carbon to Uranium,will be also available at the EicC.The main foci of the EicC will be precision measurements of the structure of the nucleon in the sea quark region,including 3D tomography of nucleon;the partonic structure of nuclei and the parton interaction with the nuclear environment;the exotic states,especially those with heavy flavor quark contents.In addition,issues fundamental to understanding the origin of mass could be addressed by measurements of heavy quarkonia near-threshold production at the EicC.In order to achieve the above-mentioned physics goals,a hermetical detector system will be constructed with cutting-edge technologies.This document is the result of collective contributions and valuable inputs from experts across the globe.The EicC physics program complements the ongoing scientific programs at the Jefferson Laboratory and the future EIC project in the United States.The success of this project will also advance both nuclear and particle physics as well as accelerator and detector technology in China. | Daniele PAnderle Valerio Bertone Xu Cao Lei Chang Ningbo Chang Gu Chen Xurong Chen Zhuojun Chen Zhufang Cui Lingyun Dai Weitian Deng Minghui Ding Xu Feng Chang Gong Longcheng Gui Feng-Kun Guo Chengdong Han Jun He Tie-Jiun Hou Hongxia Huang Yin Huang KrešImir KumeričKi LPKaptari Demin Li Hengne Li Minxiang Li Xueqian Li Yutie Liang Zuotang Liang Chen Liu Chuan Liu Guoming Liu Jie Liu Liuming Liu Xiang Liu Tianbo Liu Xiaofeng Luo Zhun Lyu Boqiang Ma Fu Ma Jianping Ma Yugang Ma Lijun Mao Cédric Mezrag HervéMoutarde Jialun Ping Sixue Qin Hang Ren Craig DRoberts Juan Rojo Guodong Shen Chao Shi Qintao Song Hao Sun PawełSznajder Enke Wang Fan Wang Qian Wang Rong Wang Ruiru Wang Taofeng Wang Wei Wang Xiaoyu Wang Xiaoyun Wang Jiajun Wu Xinggang Wu Lei Xia Bowen Xiao Guoqing Xiao Ju-Jun Xie Yaping Xie Hongxi Xing Hushan Xu Nu Xu Shusheng Xu Mengshi Yan Wenbiao Yan Wencheng Yan Xinhu Yan Jiancheng Yang Yi-Bo Yang Zhi Yang Deliang Yao Zhihong Ye Peilin Yin C-PYuan Wenlong Zhan Jianhui Zhang Jinlong Zhang Pengming Zhang Yifei Zhang Chao-Hsi Chang Zhenyu Zhang Hongwei Zhao Kuang-Ta Chao Qiang Zhao Yuxiang Zhao Zhengguo Zhao Liang Zheng Jian Zhou Xiang Zhou Xiaorong Zhou Bingsong Zou Liping Zou | 2021 | Frontiers of physics2021，16，6： | 1 |
| 13 | Mechanism of SrS∶Ce Thin Film Electroluminescence显示文摘Themechanismofexcitationandemisionforthinfilmelectroluminescence(TFEL)hasbeenintensivelyinvestigated.Oneisdiscreteluminescen... | Xu, Zheng Xu, Chunxiang Lou, Zhidong Xu, Xurong | 1999 | Journal of Rare Earths1999，17，2： | 1 |
| 14 | Using a terbium complex as an energy bridge to enhance energy transfer between polyvinyl carbazole and europium compleXes显示文摘 | Tao Donglians Xu Yizhuang Feng Juan Zhang Ting Xu Zhenhua Shen Hong Wu Jinguang Xu Zheng Xu Xurong Xu Duanfu | 2004 | Journal of Materials Chemistry2004，14，： | 1 |
| 15 | The role of Sm ions in optical storage of SrS : Eu, Sm显示文摘 | Zhiyi He Yongsheng Wang Li Sun Yanbing Hou Xurong Xu | 2001 | Science in China Series A: Mathematics2001，，9： | 1 |
| 16 | F/Cl比与Eu^(2+):BaFCl中F色心的浓度和光激励截面的关系显示文摘研究了Eu(2+):BaFxCl2在紫外线辐照下的光激励发光。通过改变激励方式及激励光的扫描方向,给出了Eu(2+):BaFxCl2-x光激励发光过程中,两种F色心的浓度比值与光激励截面比值的测定方法。利用这种测定方法,进一步研究了两种F色心的浓度比值和光激励截面比值与F/CI比值的关系。 | Wang Yongsheng Xiong Guangnan Xu Xurong Zhang Guangyin(Department of Physics,Nankai University Tianjin 300071)(Institute of Material Physics,Tianjin Institute of Technology,Tianjin 300191) | 1995 | 光学学报1995，15，7： | 1 |
| 17 | Mechanism of promoted dipeptide formation on hydroxyapatite crystal surfaces显示文摘The formation of dipeptides from amino acids can be driven by hydroxyapatite at a relatively low temperature in air. For example, the formation of (Ala)2 from Ala is induced on hydroxyapatite at 110°C with considerable yield. Typically, condensing agents, high temperatures (>250°C) or high pressures (>25 MPa) are required to drive the condensation of amino acids. Similar effects are observed in the condensation of Gly, Glu and Asp. Experiments demonstrate that hydroxyapatite is an effective inorganic catalytic agent, reducing the activation barrier for the formation of dipeptides by more than 50%. HAP promotes condensation by adsorbing amino acid monomers in an organized manner, which decreases the distance between amino and carboxyl groups on neighboring molecules and extends the contact time of the reaction groups. This work provides a chemical understanding of the primitive condensation of amino acids and reveals a mechanism for enhancement of mineral catalysts. It is important that the conditions used for hydroxyapatite-assisted dipeptide formation are not harsh and can be readily achieved, revealing a possible mechanism for the chemical evolution of biomolecules over geologic ages. | WU Jia ZHANG ZhiShen YU XinWei PAN HaiHua JIANG WenGe XU XuRong TANG RuiKang | 2011 | Chinese Science Bulletin2011，56，7： | 1 |
| 18 | Structural and functional analysis of a potent human neutralizing antibody against enterovirus A71显示文摘Enterovirus A71(EV-A71) causes major outbreaks of hand,foot,and mouth disease(HFMD) in many countries,most frequently affecting children,and a small proportion of cases may lead to death.Currently,no vaccine is available in most endemic regions,and no licenced treatments for EV-A71 infection are available.Here,we characterize a human monoclonal antibody(Hu MAb),E1,by screening a Fab antibody phage library derived from patients who recovered from EV-A71 infection.E1 exhibits strong neutralizing activity against EV-A71 virus in cells.The cryo-electron microscopy(cryo-EM) structures of the EV-A71 virion in complex with E1 Fab fragments demonstrated that E1 recognized an epitope formed by residues in the BC and HI loops of VP1.In a mouse model,E1 effectively protected against lethal EV-A71 challenge in both prophylactic and therapeutic treatment.In particular,E1 significantly reduces virus titers and muscle damage.E1 might represent a potential adjunct to EV-A71 treatment. | Zhe Chen Linlin Bao Bin Zhu Hua Fu Shuangli Zhu Tianjiao Ji Ying Xue Chuan Liu Xurong Wang Fengdi Li Qi Lv Feifei Qi Pin Yu Wei Deng Wenbo Xu Chuan Qin Hongrong Liu Qi Jin | 2022 | Science China(Life Sciences)2022，65，12： | 0 |
| 19 | Microalgae-material hybrid for enhanced photosynthetic energy conversion:a promising path towards carbon neutrality显示文摘Photosynthetic energy conversion for high-energy chemicals generation is one of the most viable solutions in the quest for sustainable energy towards carbon neutrality.Microalgae are fascinating photosynthetic organisms,which can directly convert solar energy into chemical energy and electrical energy.However,microalgal photosynthetic energy has not yet been applied on a large scale due to the limitation of their own characteristics.Researchers have been inspired to couple microalgae with synthetic materials via biomimetic assembly and the resulting microalgae-material hybrids have become more robust and even perform new functions.In the past decade,great progress has been made in microalgae-material hybrids,such as photosynthetic carbon dioxide fixation,photosynthetic hydrogen production,photo electrochemical energy conversion and even biochemical energy conversion for biomedical therapy.The microalgae-material hybrid offers opportunities to promote artificially enhanced photosynthesis research and synchronously inspires investigation of biotic-abiotic interface manipulation.This review summarizes current construction methods of microalgae-material hybrids and highlights their implication in energy and health.Moreover,we discuss the current problems and future challenges for microalgae-material hybrids and the outlook for their development and applications.This review will provide inspiration for the rational design of the microalgae-based semi-natural biohybrid and further promote the disciplinary fusion of material science and biological science. | Wei Xiong Yiyan Peng Weimin Ma Xurong Xu Yueqi Zhao Jinhui Wu Ruikang Tang | 2023 | National Science Review2023，10，10： | 0 |
| 20 | TRIAL OF THE THIRD GENERATION ELECTROLUMINESCENCE | XU XURONG LEI GANG SHEN MENGYAN (Tianjin Institute of Technology,Tianjin 300191,PRC) | 1991 | Progress in Natural Science:Materials International1991，1，1： | 0 |
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