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| 1 | Cold-chain food contamination as the possible origin of COVID-19 resurgence in Beijing显示文摘COVID-19,caused by SARS-CoV-2[1,2],has been contained in China through stringent non-pharmaceutical interventions.Border control and quarantine have effectively prevented the virus from being spread by infected travellers,but the risk of resurgence caused by other routes of introduction and transmission remains unclear,and current strategies to prevent resurgence could be flawed.Since July,SARS-CoV-2 RNA contaminations in frozen food imported from countries with ongoing epidemics have been reported in nine provinces in China[3,4].However,there is no robust evidence of COVID-19 outbreaks initiated by environmentto-human transmission.Here we add to evidence of such transmission by investigating the recent COVID-19 resurgence in Beijing. | Xinghuo Pang Lili Ren Shuangsheng Wu Wentai Ma Jian Yang Lin Di Jie Li Yan Xiao Lu Kang Shichang Du Jing Du Jing Wang Gang Li Shuguang Zhai Lijuan Chen Wenxiong Zhou Shengjie Lai Lei Gao Yang Pan Quanyi Wang Mingkun Li Jianbin Wang Yanyi Huang Jianwei Wang COVID-19 Field Response Group COVID-19 Laboratory Testing Group | 2020 | National Science Review2020，7，12： | 51 |
| 2 | Effect of activation agents on the surface chemical properties and desulphurization performance of activated carbon显示文摘Flue gas pollution is a serious environmental problem that needs to be solved for the sustainable development of China.The surface chemical properties of carbon have great influence on its desulphurization performance.A series of activated carbons (ACs) were prepared using HNO3,H2O2,NH3·H2O and steam as activation agents with the aim to introduce functional groups to carbon surface in the ACs preparation process.The ACs were physically and chemically characterized by iodine and SO2 adsorption,ultimate analysis,Boehm titration,and temperature-programmed reduction (TPR).Results showed that the iodine number and desulphurization capacity of NH3·H2O activated carbon (AC-NH3) increase with both activation time,and its desulphurization capacity also increases with the concentration of activation agent.However,HNO3 activated carbon (AC-HNO3) and H2O2 activated carbon (AC-H2O2) exhibit more complex behavior.Only their iodine numbers increase monotonously with activation time.Compared with steam activated AC (AC-H2O),the nitrogen content increases 0.232% in AC-NH3 and 0.077% in AC-HNO3.The amount of total basic site on AC-HNO3 is 0.19 mmol·g-1 higher than that on AC-H2O.H2O2 activation introduces an additional 0.08 mmol·g-1 carboxyl groups to AC surface than that introduced by steam activation.The desulphurization capacity of ACs in simulate flue gas desulphurization decreases as follows: AC-NH3 > AC-HNO3 > AC-H2O2 > AC-H2O.This sequence is in accord with the SO2 catalytic oxidation/oxidation ratio in the absence of oxygen and the oxidation property reflected by TPR.In the presence of oxygen,all adsorbed SO2 on ACs can be oxidized into SO3.The desulphurization capacity increases differently according to the activation agents;the desulphurization capacity of AC-NH3 and AC-HNO3 improves by 4.8 times,yet AC-H2O increases only by 2.62 as compared with the desulphurization of corresponding ACs in absence of oxygen. | ZHANG XiangLan,ZHANG Yan,WANG ShuangSheng,ZHANG JingJing & ZHOU Wei School of Chemical and Environmental Engineering,China University of Mining and Technology (Beijing),Beijing 100083,China | 2010 | Science China(Technological Sciences)2010，53，9： | 14 |
| 3 | A Local Cluster of Omicron Variant COVID-19 Likely Caused by Internationally Mailed Document——Beijing Municipality,China,January 2022显示文摘On January 15,2022,a 26 years old female(Case A)went to a sampling site for coronavirus disease 2019(COVID-19)testing due to excessive fatigue and fever for two days.This patient preliminarily tested positive for severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)using a quantitative real-time reverse transcription polymerase chain reaction(qRT-PCR)method. | Daitao Zhang Shuangsheng Wu Zhenyong Ren Ying Sun Xiangfeng Dou Zhaomin Feng Fu Li Yi Tian Shujuan Cui Baiwei Liu Bing Lyu Xiaoli Wang Feng Liu Lina Jin Chu Jiang Lina Tian Zhenjiang Xin Zhichao Liang Lei Jia Quanyi Wang Yang Pan Peng Yang | 2022 | China CDC weekly2022，4，14： | 6 |
| 4 | Metal complexes of a novel bis-β-diketone-type ligand and its copper(Ⅱ) complexes of two-photon biological imaging显示文摘A curcumin derivative ligand,1,7-bis(3-methoxyl-4-acetoxyl)phenyl-1,6-heptadiene-3,5-diketone (diacetylcurcumin,abbreviated as HL),and its Cu and Ni complexes have been synthesized and fully characterized by elemental analyses,IR,1 HNMR and molar conductivity.The resulting complexes exhibit two-photon excited fluorescence (TPEF) in DMF,and have been proven to be potentially useful for two-photon microscopy imaging in living cells.In addition,cytotoxicity tests showed that the low-micromolar concentrations of ML 2 did not cause significant reduction in cell viability over a period of at least 24 h and should be safe for further biological studies. | ZHOU ShuangSheng XUE Xuan JIANG Bo TIAN YuPeng | 2012 | Science China Chemistry2012，55，3： | 2 |
| 5 | Grape seed proanthocyanidins inhibit angiogenesis via the downregulation of both vascular endothelial growth factor and angiopoietin signaling显示文摘 | HUANG SHUANGSHENG YANG NINGGANG LIU YUANYUAN | 2012 | Nutrition Research2012，32，7： | 1 |
| 6 | Survey of biosphere-2 in America显示文摘 | GUO Shuangsheng SUN Jinbiao | 1995 | Space Medicine & Medical Engineering1995，8，4： | 1 |
| 7 | Effects of lowpressure and hypoxia on growth and development of wheat 显示文摘 | GUO Shuangsheng TANG Yongkang GAO Feng | 2008 | Acta Astronautica2008，63，710： | 1 |
| 8 | Effects of long-term low atmospheric pressure on gas exchange and growth of lettuce显示文摘 | TANG Yongkang GUO Shuangsheng DONG Wenping | 2010 | Adv Space Res2010，46，6： | 1 |
| 9 | The development of concept of controlled life support system abroad显示文摘 | GUO Shuangsheng SHANG Chuanxun | 1995 | Space Medicine & Medical Engineering1995，8，1： | 1 |
| 10 | Identification of miRNAs involved in long-term simulated microgravity response in Solanum lycopersicum显示文摘 | Dongqian Xu Shuangsheng Guo Min Liu | 2013 | Plant Physiology and Biochemistry2013，，： | 1 |
| 11 | A straw-soil co-composting and evaluation for plant substrate in BLSS显示文摘 | Quanyong Cheng Shuangsheng Guo Weidang Ai Yongkang Tang Lifeng Qin | 2012 | Advances in Space Research2012，，： | 1 |
| 12 | Grape seed proanthocyanidins inhibit angiogenesis via the downregulation of both vascular endothelial growth factor and angiopoietin signaling显示文摘 | Shuangsheng Huang Ninggang Yang Yuanyuan Liu | 2012 | Nutrition Research2012，32，7： | 1 |
| 13 | Optimization of Well Position and Sampling Frequency for Groundwater Monitoring and Inverse Identification of Contamination Source Conditions Using Bayes’Theorem显示文摘Coupling Bayes’Theorem with a two-dimensional(2D)groundwater solute advection-diffusion transport equation allows an inverse model to be established to identify a set of contamination source parameters including source intensity(M),release location(0 X,0 Y)and release time(0 T),based on monitoring well data.To address the issues of insufficient monitoring wells or weak correlation between monitoring data and model parameters,a monitoring well design optimization approach was developed based on the Bayesian formula and information entropy.To demonstrate how the model works,an exemplar problem with an instantaneous release of a contaminant in a confined groundwater aquifer was employed.The information entropy of the model parameters posterior distribution was used as a criterion to evaluate the monitoring data quantity index.The optimal monitoring well position and monitoring frequency were solved by the two-step Monte Carlo method and differential evolution algorithm given a known well monitoring locations and monitoring events.Based on the optimized monitoring well position and sampling frequency,the contamination source was identified by an improved Metropolis algorithm using the Latin hypercube sampling approach.The case study results show that the following parameters were obtained:1)the optimal monitoring well position(D)is at(445,200);and 2)the optimal monitoring frequency(Δt)is 7,providing that the monitoring events is set as 5 times.Employing the optimized monitoring well position and frequency,the mean errors of inverse modeling results in source parameters(M,X0,Y0,T0)were 9.20%,0.25%,0.0061%,and 0.33%,respectively.The optimized monitoring well position and sampling frequency canIt was also learnt that the improved Metropolis-Hastings algorithm(a Markov chain Monte Carlo method)can make the inverse modeling result independent of the initial sampling points and achieves an overall optimization,which significantly improved the accuracy and numerical stability of the inverse modeling results. | Shuangsheng Zhang Hanhu Liu Jing Qiang Hongze Gao Diego Galar Jing Lin | 2019 | Computer Modeling in Engineering & Sciences2019，，5： | 1 |
| 14 | 那些年,关于马云“野导”的那些事显示文摘马云是阿里巴巴集团的主要创始人.马云的英语,马云的成就,连同他“奇特的面相”一样被人们所津津乐道.美国《福布斯》杂志曾经评价马云“颧骨深凹,头发扭曲,露齿欢笑,顽童模样,5英尺高100磅重”.就是这样一个长相颇似《E.T外星人》里外星人的小个子,用一口“发迹”于“野导”经历的流利张扬的英语自信地告诉世界:阿里巴巴来了,中国来了! | Chen Shuangsheng | 2018 | 疯狂英语(新悦读)2018，0，6： | 0 |
| 15 | Synthesis and Properties of Rosin-Based Composite Acrylamide Hydrogels显示文摘Hydrogels have been widely applied in agricultural drought-resistance,pollution regulation,drug delivery and so on.Acrylamide(AM)is usually used as raw material to synthesize acrylamide hydrogels.However,inherently low mechanical strength greatly limits their applications in some special areas.Therefore,it is necessary to choose suitable functional monomers to optimize acrylamide hydrogels and improve their mechanical performances.In this paper,a novel acrylamide monomer modified by rosin was synthesized,and then polyacrylamide/rosinbased acrylamide(RAM)composite hydrogels were prepared via free radical polymerization using potassium persulfate as initiator,N,N′-methylene-bisacrylamide(MBA)as a crosslinker.The influence of RAM monomer was investigated in detail.The chemical structure,pore structure,swelling properties,thermal performances and mechanical properties of composite hydrogels were characterized by Fourier Transform Infrared spectrometer(FT-IR),thermogravimetric analysis(TG),scanning electron microscope(SEM),and universal testing,respectively.The results showed that the thermal stability and mechanical property of RAM hydrogels were improved significantly.The compressive strength of RAM hydrogels was increased to 3.5 times than that of AM hydrogels,and the tensile strength was 5.1 times compared with AM hydrogels as well.Moreover,RAM hydrogels exhibited a faster initial swelling rate due to the new pore structure formed after introducing the RAM monomer. | Shuangsheng Zhang Bin Sun Siyu Li Xiangyu Lin Muhua Chen Xu Xu | 2023 | Journal of Renewable Materials2023，11，2： | 0 |
| 16 | A Retrospective Modeling Study of the Targeted Non-Pharmaceutical Interventions During the Xinfadi Outbreak in the Early Stage of the COVID-19 Pandemic — Beijing, China, 2020显示文摘Summary What is already known about this topic?China has repeatedly contained multiple severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)outbreaks through a comprehensive set of targeted nonpharmaceutical interventions(NPIs).However,the effectiveness of such NPIs has not been systematically assessed. | Yan Wang Kaiyuan Sun Yang Pan Lan Yi Da Huo Yanpeng Wu Shuaibing Dong Jinxin Guo Xiangfeng Dou Wei Wang Shuangsheng Wu Xufang Bai Hongjie Yu Quanyi Wang | 2023 | China CDC weekly2023，5，5： | 0 |
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