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| 1 | COVID-19 Super Spreading Event Amongst Elderly Individuals—Jilin Province,China,January 2021显示文摘Summary What is already known on this topic?Clusters of COVID-19 cases often happened in small settings(e.g.,families,offices,school,or workplaces)that facilitate person-to-person virus transmission,especially from a common exposure.What is added by this report?On January 10 and 11,2021,an individual gave three product promotional lectures in Tonghua City. | Laishun Yao Mingyu Luo Tiewu Jia Xingang Zhang Zhulin Hou Feng Gao Xin Wang Xiaogang Wu Weihua Cheng Guoqian Li Jing Lu Bing Zhao Tao Li Enfu Chen Dapeng Yin Biao Huang | 2021 | China CDC weekly2021,3,10: | 13 |
| 2 | Chemical characteristics of size-resolved aerosols in winter in Beijing显示文摘Size-resolved aerosols were continuously collected by a Nano Sampler for 13 days at an urban site in Beijing during winter 2012 to measure the chemical composition of ambient aerosol particles. Data collected by the Nano Sampler and an ACSM(Aerodyne Aerosol Chemical Speciation Monitor) were compared. Between the data sets,similar trends and strong correlations were observed,demonstrating the validity of the Nano Sampler. PM10 and PM2.5concentrations during the measurement were 150.5 ± 96.0 μg/m3(mean ± standard variation)and 106.9 ± 71.6 μg/m3,respectively. The PM2.5/PM10 ratio was 0.70 ± 0.10,indicating that PM2.5dominated PM10. The aerosol size distributions showed that three size bins of 0.5–1,1–2.5 and 2.5–10 μm contributed 21.8%,23.3% and 26.0% to the total mass concentration(TMC),respectively. OM(organic matter) and SIA(secondary ionic aerosol,mainly SO42-,NO3-and NH4+) were major components of PM2.5. Secondary compounds(SIA and secondary organic carbon) accounted for half of TMC(about 49.8%) in PM2.5,and suggested that secondary aerosols significantly contributed to the serious particulate matter pollution observed in winter. Coal burning,biomass combustion,vehicle emissions and SIA were found to be the main sources of PM2.5. Mass concentrations of water-soluble ions and undetected materials,as well as their fractions in TMC,strikingly increased with deteriorating particle pollution conditions,while OM and EC(elemental carbon) exhibited different variations,with mass concentrations slightly increasing but fractions in TMC decreasing. | Kang Sun Yu Qu Qiong Wu Tingting Han Jianwei Gu Jingjing Zhao Yele Sun Qi Jiang Ziqi Gao Min Hu Yuanhang Zhang Keding Lu Stephan Nordmann Yafang Cheng Li Hou Hui Ge Masami Furuuchi Mitsuhiko Hata Xingang Liu | 2014 | Journal of Environmental Sciences2014,26,8: | 9 |
| 3 | A pair of transposon-derived proteins function in a histone acetyltransferase complex for active DNA demethylation显示文摘Transposons 被 epigenetic 机制通常包括 DNA methylation 使沉默。这里,我们识别了一双先驱导出 transposon 的蛋白质(HDP ) , HDP1 和 HDP2,在 Arabidopsis 的反沉默因素。hdp1 和 hdp2 异种显示了 transgenes 和某 transposons 的提高的 silencing。种系发生的分析表明 HDP1 和 HDP2 分别地从先驱编码 transposon 的 transposase 和 DNA 有约束力的蛋白质被共同驯养。HDP1 在原子核与 HDP2 交往,类似于他们的 transposon 对应物。而且, HDP1 和 HDP2 与组成在 DNA demethylation 工作的 histone acetyltransferase 建筑群的 IDM1, IDM2, IDM3 和 MBD7 被联系。HDP2 和 methyl-DNA-binding 蛋白质 MBD7 分享普通 genomic 绑定地点的一个大集合,显示他们联合决定 histone acetyltransferase 建筑群的目标特性。因此,我们的数据表明 HDP1 和 HDP2 组成被招募了到 histone acetyltransferase 建筑群阻止 DNA hypermethylation 和 epigenetic silencing 的一个功能的模块。 | Cheng-Guo Duan Xingang Wang Shaojun Xie Li Pan Daisuke Miki Kai Tang Chuan-Chih Hsu Mingguang Lei Yingli Zhong Yueh-Ju Hou ZhijuanWang Zhengjing Zhang Satendra K Mangrauthia Huawei Xu Heng Zhang Brian Dilkes W Andy Tao Jian-Kang Zhu | 2017 | Cell Research2017,27,2: | 6 |
| 4 | 共轨道面共星下点轨迹星座特性及应用研究显示文摘Common-track constellation is a special kind of constellation, all ground tracks of satellites are in one track. With recursive orbit or quasi-recursive orbit, the ground track of the constellation is a closed loop with a repeating track. In particular, if the constellation is in one orbit plane, the constellation can meet the requirement for a multi-satellite launch mission and fast satellite-satellite link establishment. The characteristics and coverage properties of a common-track constellation in one orbit plane are studied in this paper. The simulation results show that a common-track constellation in one orbit plane can provide favorable coverage to a target station in the polar areas. | LIN Xiaoxiong QI Yu LI Xingang HOU Fenglong PEI Shengwei | 2021 | Aerospace China2021,22,4: | 0 |
| 5 | Growth of uniformly doped black phosphorus films through versatile atomic substitution显示文摘For the emerging excellent two-dimensional semiconductor black phosphorus(BP),doping has been proven as an effective way to tune its intrinsic properties.For the further development and expansion of BP-based research and application,the direct growth of doped BP films is highly desirable but still remains a challenge.In this work,the direct growth of uniformly doped-BP films on silicon substrates is achieved by a simple one-step vapor growth.The proposed decoupled feeding strategy significantly improves the effectiveness of doping and enables uniform dopant distribution in the grown films.The substitutional doping nature and high crystal quality of the grown doped films are confirmed by microscopy and crystal structural determination.Electrical transport measurement results reveal that Se and Te dopants perform mild electron doping effect and enable improve the electron mobility relative to pristine BP,while As dopant performs mild hole doping effect.It is believed that the direct growth of doped BP films in this work will facilitate the research development of BP in electronics and optoelectronics. | Cheng CHEN Yang LU Chang LI Xingang HOU Yongjie WANG Junrong ZHANG Junyong WANG Kai ZHANG | 2023 | Science China(Information Sciences)2023,66,6: | 0 |
| 6 | Optical and electronic anisotropy of a 2D semiconductor SiP显示文摘Two-dimensional anisotropic materials have been widely concerned by researchers because of their great application potential in the field of polarized detector devices and optical elements,which is a very important and popular research direction at present.As a IV-V two-dimensional material,silicon phosphide(SiP)has obvious in-plane anisotropy and exhibits excellent optical and electrical anisotropy properties.Herein,the optical anisotropy of SiP is studied by spectrometric ellipsometry measurements and polarization-resolved optical microscopy,and its electrical anisotropy is tested by SiP-based field-effect transistor.In addition,the normal and anisotropic photoelectric performance of SiP is shown by fabricating a photodetector and measuring it.In various measurements,SiP exhibits obvious anisotropy and good photoelectric performance.This work provides basic optical,electrical,and photoelectric performance information of SiP,and lays a foundation for further study of SiP and applications of SiP-based devices. | Shijun Hou Zhengfeng Guo Tao Xiong Xingang Wang Juehan Yang Yue-Yang Liu Zhi-Chuan Niu Shiyuan Liu Bing Liu Shenqiang Zhai Honggang Gu Zhongming Wei | 2022 | Nano Research2022,15,9: | 0 |
| 7 | TOR激酶和ABA受体的相互调控平衡植物生长和胁迫应答显示文摘文章简介由于无法通过移动有效的逃避胁迫,植物必须精确地平衡生长发育和胁迫应答,以适应不断变化的环境。在干旱等胁迫来临时,植物需要抑制生长发育并激活胁迫应答过程以维持生存;在胁迫条件解除后,植物又需要及时解除胁迫反应并恢复生长。 | Pengcheng Wang Yang Zhao Zhongpeng Li Chuan-Chih Hsu Xue Liu Liwen Fu Yueh-Ju Hou Yanyan Du Shaojun Xie Chunguang Zhang Jinghui Gao Minjie Cao Xiaosan Huang Yingfang Zhu Kai Tang Xingang Wang W.Andy Tao 熊延 朱健康 | 2019 | 科学新闻2019,0,2: | 0 |