|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Understanding unusually high levels of peroxyacetyl nitrate(PAN) in winter in Urban Jinan,China显示文摘Peroxyacetyl nitrate(PAN), as a major secondary pollutant, has gained increasing worldwide attentions, but relevant studies in China are still quite limited. During winter of 2015 to summer of 2016, the ambient levels of PAN were measured continuously by an automatic gas chromatograph equipped with an electron capture detector(GC–ECD) analyzer at an urban site in Jinan(China), with related parameters including concentrations of O3, NO, NO_2, PM_(2.5), HONO,the photolysis rate constant of NO_2 and meteorological factors observed concurrently. The mean and maximum values of PAN concentration were(1.89 ± 1.42) and 9.61 ppbv respectively in winter, and(2.54 ± 1.44) and 13.47 ppbv respectively in summer. Unusually high levels of PAN were observed during severe haze episodes in winter, and the formation mechanisms of them were emphatically discussed. Study showed that high levels of PAN in winter were mainly caused by local accumulation and strong photochemical reactions during haze episodes, while mass transport played only a minor role. Accelerated photochemical reactions(compared to winter days without haze) during haze episodes were deduced by the higher concentrations but shorter lifetimes of PAN, which was further supported by the sufficient solar radiation in the photolysis band along with the high concentrations of precursors(NO_2, VOCs) and HONO during haze episodes. In addition, significant PAN accumulation during calm weather of haze episodes was verified by meteorological data. | Lu Liu Xinfeng Wang Jianmin Chen Likun Xue Wenxing Wang Liang Wen Dandan Li Tianshu Chen | 2018 | Journal of Environmental Sciences2018，30，9： | 10 |
| 2 | Size Distributions of Aerosol Sulfates and Nitrates in Beijing during the 2008 Olympic Games: Impacts of Pollution Control Measures and Regional Transport显示文摘为 2008 个奥运会,激烈的控制措施在二氧化物(SO2 ) ,氮氧化物(没有 x ) 和处理穷人的问题的另外的污染物质通风的硫的工业、城市的排出物上被实现在北京的质量。在微粒硫酸盐和硝酸盐集中以及他们的尺寸分布上调查 SO2 和没有 x 减小的效果,分离尺寸的喷雾器样品在照原尺寸的控制前后在北京在城市、顺风的农村地点用微孔的一致存款 impactors (MOUDI ) 被收集。在采样时期期间,在城市、农村的地点的好粒子(PM1.8 ) 的集体集中分别地是 94.0 和 85.9 g m3。超过 90% 硫酸盐和 60% 硝酸盐形成了同样好的粒子。得益于有益的气象学的条件和来源控制,硫酸盐在奥林匹克期间在相当低的集中并且首先在冷凝作用模式被观察。控制措施的效果独立被分析让北风和南方的 air-mass-dominated 天说明任何偏爱。在控制措施被实现以后,当在北方的空气群众占优势时,下午,硫酸盐,和硝酸盐显著地被减少,与在更大的粒子的减小的一个更高的百分比。在控制措施被实现以后,微滴模式粒子,在控制被实现以前,统治了硫酸盐和硝酸盐,显著地在集体集中被减少。但当弄脏的南方的空气群众占优势时,本地来源控制在北京测量,有效地没从北方中国平原由于庞大的地区性的贡献减少周围的硫酸盐集中。 | WANG Xinfeng WANG Tao Ravi Kant PATHAK Mattias HALLQUIST GAO Xiaomeit NIE Wei XUE Likun GAO Jian GAO Rui ZHANG Qingzhu WANG Wenxing WANG Shulan CHAI Fahe CHEN Yizhen | 2013 | Advances in Atmospheric Sciences2013，30，2： | 8 |
| 3 | Strong ozone production at a rural site in the North China Plain: Mixed effects of urban plumes and biogenic emissions显示文摘Regional ozone(O_3) pollution has drawn increasing attention in China over the recent decade, but the contributions from urban pollution and biogenic emissions have not been clearly elucidated. To better understand the formation of the regional O_3 problem in the North China Plain(NCP), intensive field measurements of O_3 and related parameters were conducted at a rural site downwind of Ji'nan, the capital city of Shandong province, in the summer of 2013. Markedly severe O_3 pollution was recorded, with the O_3 mixing ratios exceeding the Chinese national ambient air quality standard on 28 days(a frequency of 78%) and with a maximum hourly value of 198 ppbv. Extensive regional transport of wellprocessed urban plumes to the site was identified. An observation-constrained chemical box model was deployed to evaluate in situ photochemical O_3 production on two episodes.The results show that the in situ formation accounted for approximately 46% of the observed O_3 accumulation, while the remainder(~54%) was contributed by regional transport of the O_3-laden urban plumes. The in situ ozone production was in a mixed controlled regime that reducing either NOx or VOCs would lead to a reduction of ozone formation. Biogenic VOCs played an important role in the local ozone formation. This study demonstrates the significant mixed effects of both anthropogenic pollution from urban zones and biogenic emission in rural areas on the regional O_3 pollution in the NCP region,and may have general applicability in facilitating the understanding of the formation of secondary pollution over China. | Ruihan Zong Xue Yang Liang Wen Caihong Xu Yanhong Zhu Tianshu Chen Lan Yao Liwei Wang Junmei Zhang Lingxiao Yang Xinfeng Wang Min Shao Tong Zhu Likun Xue Wenxing Wang | 2018 | Journal of Environmental Sciences2018，30，9： | 8 |
| 4 | Presence of high nitryl chloride in Asian coastal environment and its impact on atmospheric photochemistry显示文摘Nitryl chloride(ClNO2)is a product of nocturnal halogen activation of nitrogen oxides and has potential to impact atmospheric photochemistry.Here we report the first observation result of ClNO2in an Asian environment.The measurements were made with a thermal decomposition chemical ionization mass spectrometer at a coastal site in southern China during late summer of 2012.A clear diurnal pattern of ClNO2was observed with nighttime 1-min average mixing ratio up to 1997 pptv,which is among the highest values ever reported in the world.The elevated ClNO2mixing ratios were observed in plumes from Hong Kong and the Pearl River Delta region compared to the lower levels in maritime air.Calculations suggest that the production of chlorine atom from photolysis of ClNO2in the early morning exceeds the production of hydroxyl radical via ozone photolysis by several factors.Therefore,ClNO2plays an important role in jump-starting the atmospheric photochemistry in polluted marine boundary layer of southern China. | Yee Jun Tham Chao Yan Likun Xue Qiaozhi Zha Xinfeng Wang Tao Wang | 2014 | Chinese Science Bulletin2014，59，4： | 3 |
| 5 | Peroxyacetyl nitrate measurements by thermal dissociation-chemical ionization mass spectrometry in an urban environment: performance and characterizations显示文摘Peroxyacetyl 硝酸盐(平底锅) 是光化学的烟雾的重要指示物并且在人的健康和植被生长上有不利效果。热分离化学药品电离团 spectrometry (TD 计算机集成制造系统) 的一种快速、高度选择的技术最近被开发在实时测量许多平底锅;然而,它可以面对氮的氧化物服从于人工制品(没有) 。在这研究,我们测试了导致由的 PAN 信号的干扰没有,在城市的环境评估了 TD 计算机集成制造系统的性能,并且在城市的香港调查了平底锅的集中和形成。不在 TD 计算机集成制造系统引起了 PAN 信号的重要低估,与没有集中严厉地增加并且与平底锅丰富稍微减少的低估。一个公式被导出与集中连接平底锅信号的损失没有并且平底锅,它能在平底锅大小被用于数据修正。从 TDCIMS 的改正的平底锅数据与从有电子俘获察觉的通常使用的煤气的层析的那些一致,它在在哪个不是丰富的城市的环境证实 TD 计算机集成制造系统的实用程序。在 2010 的秋天,混合比率的时时平均的平底锅从 0.06 ppbv 变化了到 5.17 ppbv,显示在城市的香港的光化学的污染的出现。平底锅的形成效率每 100 ppbv 臭氧象 3.9 ~ 5.9 ppbv 一样在污染事件期间高。效率没有 x 集中显示出在线性附近的增加,建议为平底锅污染的 NOx 减小的一条控制政策。 | Xinfeng Wang Tao Wang Likun Xue Wei Nie Zheng Xu Steven C. N. Poon Wenxing Wang | 2017 | Frontiers of Environmental Science & Engineering2017，11，4： | 2 |
| 6 | Safety and efficacy of meplazumab in healthy volunteers and COVID-19 patients: a randomized phase 1 and an exploratory phase 2 trial显示文摘Recent evidence suggests that CD147 serves as a novel receptor for severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)infection.Blocking CD147 via anti-CD147 antibody could suppress the in vitro SARS-CoV-2 replication.Meplazumab is a humanized anti-CD147 IgG_(2) monoclonal antibody,which may effectively prevent SARS-CoV-2 infection in coronavirus disease 2019(COVID-19)patients.Here,we conducted a randomized,double-blinded,placebo-controlled phase 1 trial to evaluate the safety,tolerability,and pharmacokinetics of meplazumab in healthy subjects,and an open-labeled,concurrent controlled add-on exploratory phase 2 study to determine the efficacy in COVID-19 patients.In phase 1 study,59 subjects were enrolled and assigned to eight cohorts,and no serious treatment-emergent adverse event(TEAE)or TEAE grade≥3 was observed.The serum and peripheral blood Cmax and area under the curve showed non-linear pharmacokinetic characteristics.No obvious relation between the incidence or titer of positive anti-drug antibody and dosage was observed in each cohort.The biodistribution study indicated that meplazumab reached lung tissue and maintained>14 days stable with the lung tissue/cardiac blood-pool ratio ranging from 0.41 to 0.32.In the exploratory phase 2 study,17 COVID-19 patients were enrolled,and 11 hospitalized patients were involved as concurrent control.The meplazumab treatment significantly improved the discharged(P=0.005)and case severity(P=0.021),and reduced the time to virus negative(P=0.045)in comparison to the control group.These results show a sound safety and tolerance of meplazumab in healthy volunteers and suggest that meplazumab could accelerate the recovery of patients from COVID-19 pneumonia with a favorable safety profile. | Huijie Bian Zhao-Hui Zheng Ding Wei Aidong Wen Zheng Zhang Jian-Qi Lian Wen-Zhen Kang Chun-Qiu Hao Jing Wang Rong-Hua Xie Ke Dong Jie-Lai Xia Jin-Lin Miao Wen Kang Guoquan Li Di Zhang Mingru Zhang Xiu-Xuan Sun Likun Ding Kui Zhang Junfeng Jia Jin Ding Zhiqin Li Yanyan Jia Lin-Na Liu Zhe Zhang Zhao-Wei Gao Hong Du Na Yao Qing Wang Ke Wang Jie-Jie Geng Bin Wang Ting Guo Ruo Chen Yu-Meng Zhu Li-Juan Wang Qian He Rui-Rui Yao Ying Shi Xiang-Min Yang Jian-Sheng Zhou Yi-Nan Ma Ya-Tao Wang Xue Liang Fei Huo Zhe Wang Yang Zhang Xu Yang Ye Zhang Lu-Hua Gao Ling Wang Xiao-Chun Chen Hao Tang Shuang-Shuang Liu Qing-Yi Wang Zhi-Nan Chen Ping Zhu | 2021 | Signal Transduction and Targeted Therapy2021，6，6： | 2 |
| 7 | An unexpected large continental source of reactive bromine and chlorine with significant impact on wintertime air quality显示文摘Halogen atoms affect the budget of ozone and the fate of pollutants such as hydrocarbons and mercury.Yet their sources and significances in polluted continental regions are poorly understood.Here we report the observation of unprecedented levels(averaging at 60 parts per trillion)of bromine chloride(BrCl)at a mid-latitude site in North China during winter.Widespread coal burning in rural households and a photo-assisted process were the primary source of BrCl and other bromine gases.BrCl contributed about 55%of both bromine and chlorine atoms.The halogen atoms increased the abundance of'conventional'tropospheric oxidants(OH,HO_(2) and RO_(2))by 26%-73%,and enhanced oxidation of hydrocarbon by nearly a factor of two and the net ozone production by 55%.Our study reveals the significant role of reactive halogen in winter atmospheric chemistry and the deterioration of air quality in continental regions where uncontrolled coal combustion is prevalent. | Xiang Peng Weihao Wang Men Xia Hui Chen A.R.Ravishankara Qinyi Li Alfonso Saiz-Lopez Pengfei Liu Fei Zhang Chenglong Zhang Likun Xue Xinfeng Wang Christian George Jinhe Wang Yujing Mu Jianmin Chen Tao Wang | 2021 | National Science Review2021，8，7： | 2 |
| 8 | Substring-searchable attribute-based encryption and its application for IoT devices显示文摘With the development of big data and cloud computing technology,more and more users choose to store data on cloud servers,which brings much convenience to their management and use of data,and also the risk of data leakage.A common method to prevent data leakage is to encrypt the data before uploading it,but the traditional encryption method is often not conducive to data sharing and querying.In this paper,a new kind of Attribute-Based Encryption(ABE)scheme,which is called the Sub-String Searchable ABE(SSS-ABE)scheme,is proposed for the sharing and querying of the encrypted data.In the SSS-ABE scheme,the data owner encrypts the data under an access structure,and only the data user who satisfies the access structure can query and decrypt it.The data user can make a substring query on the whole ciphertext without setting keywords in advance.In addition,the outsourcing method is also introduced to reduce the local computation of the decryption process so that the outsourcing SSS-ABE scheme can be applied to IoT devices. | Xi Sun Hao Wang Xiu Fu Hong Qin Mei Jiang Likun Xue Xiaochao Wei | 2021 | Digital Communications and Networks2021，7，2： | 2 |
| 9 | Effect of Nano Al Pigment on the Anticorrosive Performance of Waterborne Epoxy Coatings显示文摘This paper presents the results regarding the effect of nano aluminum powder pigment concentration on the protective properties of waterborne epoxy films in 3.5 wt pct NaCl solution.The anticorrosive performance of the coatings with 0.5,1,and 3 wt pct pigments and none pigment were investigated using electrochemical impedance spectroscopy (EIS),scanning electron microscopy (SEM) and Raman spectroscopy techniques. The results show that adding appropriate amount of nano-aluminium powder pigment can enhance the barrier properties of the epoxy coating,which is attributed to the surface effect of nanoparticles and the compatibility of the pigment with the waterborne epoxy coatings. | Lili XUE Likun XU Qingfen LI | 2007 | Journal of Materials Science & Technology2007，23，4： | 1 |
| 10 | Measurement of heterogeneous uptake of NO2 on inorganic particles, sea water and urban grime显示文摘Heterogeneous reactions of NO2 on different surfaces play an important role in atmospheric NOxremoval and HONO formation,having profound impacts on photochemistry in polluted urban areas.Previous studies have suggested that the NO2 uptake on the ground or aerosol surfaces could be a dominant source for elevated HONO during the daytime.However,the uptake behavior of NO2 varies with different surfaces,and different uptake coefficients were used or derived in different studies.To obtain a more holistic picture of heterogeneous NO2 uptake on different surfaces,a series of laboratory experiments using different flow tube reactors was conducted,and the NO2 uptake coefficients(γ)were determined on inorganic particles,sea water and urban grime.The results showed that heterogeneous reactions on those surfaces were generally weak in dark conditions,with the measuredγvaried from<10-8 to 3.2×10-7 under different humidity.A photo-enhanced uptake of NO2 on urban grime was observed,with the obvious formation of HONO and NO from the heterogeneous reaction.The photo-enhancedγwas measured to be 1.9×10-6 at 5%relative humidity(RH)and 5.8×10-6 at 70%RH on urban grime,showing a positive RH dependence for both NO2 uptake and HONO formation.The results demonstrate an important role of urban grime in the daytime NO2-to-HONO conversion,and could be helpful to explain the unknown daytime HONO source in the polluted urban area. | Chuan Yu Zhe Wang Qingxin Ma Likun Xue Christian George Tao Wang | 2021 | Journal of Environmental Sciences2021，33，8： | 1 |
| 11 | Transport of north China air pollution by midlatitude cyclones:case study of aircraft measurements in summer 2007显示文摘 | DING Aijun WANG Tao XUE Likun | 2009 | J Geophys Res2009，114，： | 1 |
| 12 | National survey of the medical treatment status for non-small cell lung cancer (NSCLC) in China显示文摘 | Cong Xue Zhihuang Hu Wei Jiang Yuanyuan Zhao Fei Xu Yan Huang Hongyun Zhao Jingxun Wu Yang Zhang Liping Zhao Jing Zhang Likun Chen Li Zhang | 2012 | Lung Cancer2012，，2： | 1 |
| 13 | Size-resolved aerosol ionic composition and secondary formation at Mount Heng in South Central China显示文摘理解解决尺寸的喷雾器在南方华中在上面的边界层影响第二等的喷雾器形成的离子的作文和因素,分离尺寸的喷雾器样品在在山 Heng ( 1269 m asl )的顶点的春天 2009 用微孔的一致存款 impactor ( MOUDI )被收集,由 13 个无机、器官的水溶性的离子的随后的实验室分析列在后面。在 non-dust-storm 时期期间,普通下午 < 潜水艇 class= “ a-plus-plus ” > 1.8 集中是 41.8 g?? | Xinfeng WANG Wenxing WANG Likun XUE Xiaomei GAO Wei NIE Yangchun YU Yang ZHOU Lingxiao YANG Qingzhu ZHANG Tao WANG | 2013 | Frontiers of Environmental Science & Engineering2013，7，6： | 1 |
| 14 | Variation characteristics of atmospheric methane and carbon dioxide in summertime at a coastal site in the South China Sea显示文摘Methane(CH_(4))and carbon dioxide(CO_(2))are the two most important greenhouse gases(GHGs).To examine the variation characteristics of CH_(4)and CO_(2)in the coastal South China Sea,atmospheric CH_(4)and CO_(2)measurements were performed in Bohe(BH),Guangdong,China,in summer 2021.By using an adaptive data analysis method,the diurnal patterns of CH_(4)and CO_(2)were clearly extracted and analysed in relation to the sea breeze(SB)and land breeze(LB),respectively.The average concentrations of CH_(4)and CO_(2)were 1876.91±31.13 ppb and 407.99±4.24 ppm during SB,and 1988.12±109.92 ppb and 421.54±14.89 ppm during LB,respectively.The values of CH_(4)and CO_(2)during SB basically coincided with the values and trends of marine background sites,showing that the BH station could serve as an ideal site for background GHG monitoring and dynamic analysis.The extracted diurnal variations in CH_(4)and CO_(2)showed sunrise high and sunset low patterns(with peaks at 5:00–7:00)during LB but mid-morning high and evening low patterns(with peaks at 9:00)during SB.The diurnal amplitude changes in both CH_(4)and CO_(2)during LB were almost two to three times those during SB.Wind direction significantly modulated the diurnal variations in CH_(4)and CO_(2).The results in this study provide a new way to examine the variations in GHGs on different timescales and can also help us gain a better understanding of GHG sources and distributions in the South China Sea. | Yangyan Cheng Ye Shan Yuhuan Xue Yujiao Zhu Xinfeng Wang Likun Xue Yanguang Liu Fangli Qiao Min Zhang | 2022 | Frontiers of Environmental Science & Engineering2022，16，11： | 1 |
| 15 | Semi-continuous measurement of water-soluble ions in PM 2.5 in Jinan, China: Temporal variations and source apportionments显示文摘 | Xiaomei Gao Lingxiao Yang Shuhui Cheng Rui Gao Yang Zhou Likun Xue Youping Shou Jing Wang Xinfeng Wang Wei Nie Pengju Xu Wenxing Wang | 2011 | Atmospheric Environment2011，，33： | 1 |
| 16 | Formation of secondary organic carbon and long-range transport of carbonaceous aerosols at Mount Heng in South China显示文摘 | Shengzhen Zhou Zhe Wang Rui Gao Likun Xue Chao Yuan Tao Wang Xiaomei Gao Xinfeng Wang Wei Nie Zheng Xu Qingzhu Zhang Wenxing Wang | 2012 | Atmospheric Environment2012，，： | 1 |
| 17 | Formation of secondary organic carbon and cloud impact on carbonaceous aerosols at Mount Tai, North China显示文摘 | Zhe Wang Tao Wang Jia Guo Rui Gao Likun Xue Jiamin Zhang Yang Zhou Xuehua Zhou Qingzhu Zhang Wenxing Wang | 2011 | Atmospheric Environment2011，，： | 1 |
| 18 | Research on ozone formation sensitivity based on observational methods:Development history,methodology,and application and prospects in China显示文摘Observation-based method for O_(3)formation sensitivity research is an important tool to analyze the causes of ground-level O_(3)pollution,which has broad application potentials in determining the O_(3)pollution formation mechanism and developing prevention and control strategies.This paper outlined the development history of research on O_(3)formation sensitivity based on observational methods,described the principle and applicability of the methodology,summarized the relative application results in China and provided recommendations on the prevention and control of O_(3)pollution in China based on relevant study results,and finally pointed out the shortcomings and future development prospects in this field in China.The overview study showed that the O_(3)formation sensitivity in some urban areas in China in recent years presented a gradual shifting tendency from the VOC-limited regime to the transition regime or the NO_(x)-limited regime due to the implementation of the O_(3)precursors emission reduction policies;O_(3)pollution control strategies and precursor control countermeasures should be formulated based on local conditions and the dynamic control capability of O_(3)pollution control measures should be improved.There are still some current deficiencies in the study field in China.Therefore,it is recommended that a stereoscopic monitoring network for atmospheric photochemical components should be further constructed and improved;the atmospheric chemical mechanisms should be vigorously developed,and standardized methods for determining the O_(3)formation sensitivity should be established in China in the near future. | Wanghui Chu Hong Li Yuanyuan Ji Xin Zhang Likun Xue Jian Gao Cong An | 2024 | Journal of Environmental Sciences2024，，4： | 0 |
| 19 | Pollution characteristics of particulate matters emitted from outdoor barbecue cooking in urban Jinan in eastern China显示文摘 | Yifei Song Lei Sun Xinfeng Wang Yating Zhang Hui Wang Rui Li Likun Xue Jianmin Chen Wenxing Wang | 2018 | Frontiers of Environmental Science & Engineering2018，12，2： | 0 |
| 20 | COVID-ONE-hi:The One-stop Database for COVID-19-specific Humoral Immunity and Clinical Parameters显示文摘Coronavirus disease 2019(COVID-19),which is caused by SARS-CoV-2,varies with regard to symptoms and mortality rates among populations.Humoral immunity plays critical roles in SARS-CoV-2 infection and recovery from COVID-19.However,differences in immune responses and clinical features among COVID-19 patients remain largely unknown.Here,we report a database for COVID-19-specific IgG/IgM immune responses and clinical parameters(named COVID-ONE-hi).COVID-ONE-hi is based on the data that contain the IgG/IgM responses to 24 full-length/truncated proteins corresponding to 20 of 28 known SARS-CoV-2 proteins and 199 spike protein peptides against 2360 serum samples collected from 783 COVID-19 patients.In addition,96 clinical parameters for the 2360 serum samples and basic information for the 783 patients are integrated into the database.Furthermore,COVID-ONE-hi provides a dashboard for defining samples and a one-click analysis pipeline for a single group or paired groups.A set of samples of interest is easily defined by adjusting the scale bars of a variety of parameters.After the“START”button is clicked,one can readily obtain a comprehensive analysis report for further interpretation.COVID-ONE-hi is freely available at www.COVID-ONE.cn. | Zhaowei Xu Yang Li Qing Lei Likun Huang Dan-yun Lai Shu-juan Guo He-wei Jiang Hongyan Hou Yun-xiao Zheng Xue-ning Wang Jiaoxiang Wu Ming-liang Ma Bo Zhang Hong Chen Caizheng Yu Jun-biao Xue Hai-nan Zhang Huan Qi Siqi Yu Mingxi Lin Yandi Zhang Xiaosong Lin Zongjie Yao Huiming Sheng Ziyong Sun Feng Wang Xionglin Fan Sheng-ce Tao | 2021 | Genomics, Proteomics & Bioinformatics2021，19，5： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员