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| 1 | Daytime HONO formation in the suburban area of the megacity Beijing, China显示文摘Nitrous acid(HONO),as a primary precursor of OH radicals,has been considered one of the most important nitrogencontaining species in the atmosphere.Up to 30%of primary OH radical production is attributed to the photolysis of HONO.However,the major HONO formation mechanisms are still under discussion.During the Campaigns of Air Quality Research in Beijing and Surrounding Region(CAREBeijing2006)campaign,comprehensive measurements were carried out in the megacity Beijing,where the chemical budget of HONO was fully constrained.The average diurnal HONO concentration varied from 0.33 to 1.2 ppbv.The net OH production rate from HONO,POH(HONO)net,was on average(from 05:00 to 19:00)7.1×106 molecule/(cm3 s),2.7 times higher than from O3 photolysis.This production rate demonstrates the important role of HONO in the atmospheric chemistry of megacity Beijing.An unknown HONO source(Punknown)with an average of 7.3×106molecule/(cm3 s)was derived from the budget analysis during daytime.Punknown provided four times more HONO than the reaction of NO with OH did.The diurnal variation of Punknown showed an apparent photo-enhanced feature with a maximum around 12:00,which was consistent with previous studies at forest and rural sites.Laboratory studies proposed new mechanisms to recruit NO2 and J(NO2)in order to explain a photo-enhancement of of Punknown.In this study,these mechanisms were validated against the observation-constraint Punknown.The reaction of exited NO2 accounted for only 6%of Punknown,and Punknown poorly correlated with[NO2](R=0.26)and J(NO2)[NO2](R=0.35).These results challenged the role of NO2 as a major precursor of the missing HONO source. | YANG Qiang SU Hang LI Xin CHENG YaFang LU KeDing CHENG Peng GU JianWei GUO Song HU Min ZENG LiMin ZHU Tong ZHANG YuanHang | 2014 | Science China Chemistry2014，57，7： | 8 |
| 2 | An online monitoring system for atmospheric nitrous acid(HONO) based on stripping coil and ion chromatography显示文摘A new instrument for measuring atmospheric nitrous acid(HONO) was developed,consisting of a double-wall glass stripping coil sampler coupled with ion chromatography(SC-IC).SC-IC is featured by small size(50 × 35 × 25 cm) and modular construction,including three independent parts:the sampling unit,the transfer and supporting unit,and the detection unit.High collection efficiency(> 99%) was achieved with 25 μmol/L Na2CO3 as absorption solution even in the presence of highly acidic compounds.This instrument has a detection limit of 8 pptv at 15 min time resolution,with a measurement uncertainty of 7%.Potential interferences from NOx,NO2+SO2,NO2+VOCs,HONO+O3,HNO3,peroxyacetyl nitrite(PAN) and particle nitrite were quantified in laboratory studies and were found to be insignificant under typical atmospheric conditions.Within the framework of the 3C-STAR project,inter-comparison between the SC-IC and LOPAP(long path liquid absorption photometer) was conducted at a rural site in the Pearl River Delta.Good agreement was achieved between the two instruments over three weeks.Both instruments determined a clear diurnal profile of ambient HONO concentrations from 0.1 to 2.5 ppbv.However,deviations were found for low ambient HONO concentrations(i.e.< 0.3 ppbv),which cannot be explained by previous investigated interference species.To accurately determine the HONO budget under illuminated conditions,more intercomparison of HONO measurement techniques is still needed in future studies,especially at low HONO concentrations. | Peng Cheng Yafang Cheng Keding Lu Hang Su Qiang Yang Yikan Zou Yanran Zhao Huabing Dong Limin Zeng Yuanhang Zhang | 2013 | Journal of Environmental Sciences2013，25，5： | 5 |
| 3 | Genetic control of compound leaf development in the mungbean(Vigna radiata L.)显示文摘Many studies suggest that there are distinct regulatory processes controlling compound leaf development in different clades of legumes.Loss of function of the LEAFY(LFY)orthologs results in a reduction of leaf complexity to different degrees in inverted repeat-lacking clade(IRLC)and non-IRLC species.To further understand the role of LFY orthologs and the molecular mechanism in compound leaf development in non-IRLC plants,we studied leaf development in unifoliate leaf(un)mutant,a classical mutant of mungbean(Vigna radiata L.),which showed a complete conversion of compound leaves into simple leaves.Our analysis revealed that UN encoded the mungbean LFY ortholog(VrLFY)and played a significant role in leaf development.In situ RNA hybridization results showed that STM-like KNOXI genes were expressed in compound leaf primordia in mungbean.Furthermore,increased leaflet number in heptafoliate leaflets1(hel1)mutants was demonstrated to depend on the function of VrLFY and KNOXI genes in mungbean.Our results suggested that HEL1 is a key factor coordinating distinct processes in the control of compound leaf development in mungbean and its related non-IRLC legumes. | Keyuan Jiao Xin Li Shihao Su Wuxiu Guo Yafang Guo Yining Guan Zhubing Hu Zhenguo Shen Da Luo | 2019 | Horticulture Research2019，6，1： | 2 |
| 4 | Distributing proprietary geographic data on the World Wide Web-UCLA GIS Database and Map Server显示文摘 | Yafang Su Joan Slottow Avi Mozes | 2000 | Computers & Geosciences2000，，26： | 1 |
| 5 | Distributing proprietary geographic data on the World Wide Web - UCLA GIS Database and Man Server显示文摘 | Su Yafang Slottow Joan Mozes Avi | 2000 | Comouters & Geoscience2000，26，： | 1 |
| 6 | 靶向表观遗传相互作用为EZH2异常的实体瘤群体提供精准治疗策略显示文摘文章简介表观遗传调控异常与肿瘤发生发展密切相关,其中组蛋白甲基转移酶EZH2因在肿瘤中广泛突变和过表达,成为备受关注肿瘤治疗靶点,多个抑制剂处于临床研究。然而,目前EZH2抑制剂仅对少量血液系统肿瘤有效,对实体瘤治疗基本无效,极大限制了其临床应用空间。 | Xun Huang Juan Yan Min Zhang Yafang Wang Yi Chen Xuhong Fu Rongrui Wei Xing-ling Zheng Zhiwei Liu Xiong Zhang Hong Yang Bingbing Hao Yan-yan Shen Yi Su Xiaoji Cong Min Huang 谭敏佳 丁健 耿美玉 | 2019 | 科学新闻2019，0，2： | 1 |
| 7 | Simulation of hot deformation of TiAl based alloy containing high Nb 显示文摘 | Li Shusuo Su Xikong Han Yafang Xu Xiangjun Chen Guoliang | 2005 | Intermetallics2005，13，： | 1 |
| 8 | Distributing Proprietary Geographic Data on the World Wide Web--UCLA GIS Data- base and Map Server显示文摘 | Su Yafang Joan Slottow Avi Mozes | 2000 | Computer and Geoseience2000，，26： | 1 |
| 9 | Visualizing upwelling at monterey bay in an integrated environment of GIS and scientific visualization 显示文摘 | Su Yafang Sheng Yongwei | 1999 | Marine Geodesy1999，22，： | 1 |
| 10 | Histone deacetylase inhibitors promote breast cancer metastasis by elevating NEDD9 expression显示文摘Histone deacetylase(HDAC)is a kind of protease that modifies histone to regulate gene expression,and is usually abnormally activated in tumors.The approved pan-HDAC inhibitors have demonstrated clinical benefits for patients in some hematologic malignancies.Only limited therapeutic success in breast cancer has been observed in clinical trials.In this study,we declare that pan-HDAC inhibitors targeting NEDD9-FAK pathway exacerbate breast cancer metastasis in preclinical models,which may severely impede their clinical success.NEDD9 is not an oncogene,however,it has been demonstrated recently that there are high level or activity changes of NEDD9 in a variety of cancer,including leukemia,colon cancer,and breast cancer.Mechanistically,pan-HDAC inhibitors enhance H3K9 acetylation at the nedd9 gene promoter via inhibition of HDAC4 activity,thus increase NEDD9 expression,and then activate FAK phosphorylation.The realization that pan-HDAC inhibitors can alter the natural history of breast cancer by increasing invasion warrants clinical attention.In addition,although NEDD9 has been reported to have a hand in breast cancer metastasis,it has not received much attention,and no therapeutic strategies have been developed.Notably,we demonstrate that FAK inhibitors can reverse breast cancer metastasis induced by upregulation of NEDD9 via pan-HDAC inhibitors,which may offer a potential combination therapy for breast cancer. | Zonglong Hu Fan Wei Yi Su Yafang Wang Yanyan Shen Yanfen Fang Jian Ding Yi Chen | 2023 | Signal Transduction and Targeted Therapy2023，8，2： | 0 |
| 11 | Exploring HONO formation and its role in driving secondary pollutants formation during winter in the North China Plain显示文摘Daytime HONO photolysis is an important source of atmospheric hydroxyl radicals(OH).Knowledge of HONO formation chemistry under typical haze conditions,however,is still limited.In the Multiphase chemistry experiment in Fogs and Aerosols in the North China Plain in 2018,we investigated the wintertime HONO formation and its atmospheric implications at a rural site Gucheng.Three different episodes based on atmospheric aerosol loading levels were classified:clean periods(CPs),moderately polluted periods(MPPs)and severely polluted periods(SPPs).Correlation analysis revealed that HONO formation via heteroge.neous conversion of NO_(2)was more efficient on aerosol surfaces than on ground,highlighting the important role of aerosols in promoting HONO formation.Daytime HONO budget analysis indicated a large missing source(with an average production rate of 0.66±0.26,0.97±0.47 and 1.45±0.55 ppbV/hr for CPs,MPPs and SPPs,respectively),which strongly correlated with photo-enhanced reactions(NO_(2)heterogeneous reaction and particulate nitrate photolysis).Average OH formation derived from HONO photolysis reached up to(0.92±0.71),(1.75±1.26)and(1.82±1.47)ppbV/hr in CPs,MPPs and SPPs respectively,much higher than that from O3 photolysis(i.e.,(0.004±0.004),(0.006±0.007)and(0.0035±0.0034)ppbV/hr).Such high OH production rates could markedly regulate the atmospheric oxidation capacity and hence promote the formation of secondary aerosols and pollutants. | Shaobin Zhang Guo Li Nan Ma Yao He Shaowen Zhu Xihao Pan Wenlin Dong Yanyan Zhang Qingwei Luo Jeannine Ditas Uwe Kuhn Yuxuan Zhang Bin Yuan Zelong Wang Peng Cheng Juan Hong Jiangchuan Tao Wanyun Xu Ye Kuang Qiaoqiao Wang Yele Sun Guangsheng Zhou Yafang Cheng Hang Su | 2023 | Journal of Environmental Sciences2023，，10： | 0 |
| 12 | Causes of Strong Sandstorm Weather on March 15,2021 in Ulanqab City显示文摘The severe sandstorm process in Ulanqab,Inner Mongolia on March 15,2021 was analyzed and discussed from the aspects of weather facts,weather causes and dynamic diagnosis.The results show that the strong cold air in West Siberia rapidly moved eastward,and the surface cold front moved eastward to Ulanqab with significant warming in the previous period,resulting in gale and sandstorm weather.This severe sandstorm process occurred in basically stable atmospheric stratification.During the strong sandstorm and extremely strong sandstorm process on March 15,the strong warming in the early period near the surface led to the surface thermal instability,and sand was generated by the upward movement of the Mongolian cyclone.Over the upper northwest air stream,barocline disturbance developed unsteadily,and the upper cold advection stimulated the secondary circulation of front perpendicular to the surface;the surface cyclone turned into strong cold front,and then strong sandstorm weather occurred in Ulanqab. | Yafang SU Zhen LI Jianghua SU Biyun LI | 2023 | Meteorological and Environmental Research2023，14，4： | 0 |
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