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| 1 | Gas-to-particle conversion of atmospheric ammonia and sampling artifacts of ammonium in spring of Beijing显示文摘PM2.5 and gaseous pollutants(SO2,HNO2,HNO3,HCl,and NH3) were simultaneously collected by Partisol- Model 2300 Sequential Speciation Sampler with denuder-filter pack system in the spring of 2013 in Beijing.Water-soluble inorganic ions and gaseous pollutants were measured by Ion Chromatography.Results showed that the concentrations of NH3,NH+ 4and PM2.5 had similar diurnal variation trends and their concentrations were higher at night than in daytime.The results of gas-to-particle conversion revealed that [NH3]:[NH+4] ratio was usually higher than 1; however,it was less than 1 and the concentration of NH+4 increased significantly during the haze episode,indicating that NH3 played an important role in the formation of fine particle.Research on the sampling artifacts suggested that the volatilization loss of NH+4 was prevalent in the traditional single filter-based sampling.The excess loss of HNO3 and HCl resulted from ammonium-poor aerosols and semivolatile inorganic species had severe losses in the clean day,whereas the mass of NH+ 4was usually overestimated during the single filter-based sampling due to the positive artifacts.Correlation analysis was used to evaluate the influence of meteorological conditions on the volatilization loss of NH+4.It was found that the average relative humidity and temperature had great effects on the loss of NH+4.The loss of NH+4 was significantly under high temperature and low humidity,and tended to increase with the increasing of absorption of gaseous pollutants by denuder.The total mass of volatile loss of NH+4,NO- 3and Cl- could not be ignored and its maximum value was 12.17 μg m-3.Therefore it is important to compensate sampling artifacts for semivolatile inorganic species. | WEI LianFang DUAN JingChun TAN JiHua MA YongLiang HE KeBin WANG ShuXiao HUANG XiaoFeng ZHANG YuanXun | 2015 | Science China Earth Sciences2015，58，3： | 11 |
| 2 | Finite element method based simulation of stress-strain field in the quenching process显示文摘 | Li Huiping Zhao Guoqun He Lianfang | 2008 | Materials Science and Enginee-ring A2008，478，12： | 1 |
| 3 | Solution of non-linear thermal transient problems by a new adaptive time-step method in quenching process 显示文摘 | LI Huiping ZHAO Guoqun HE Lianfang | 2009 | Applied Mathematical Modeling2009，33，1： | 1 |
| 4 | Solution of non-linear thermal transient problems by a new adaptive time-step method in quenching process显示文摘 | Li Huiping Zhao Guoqun He Lianfang | 2009 | Applied Mathematical Modelling2009，33，1： | 1 |
| 5 | Finite element method based simulation of stress- strain field in the quenching process 显示文摘 | LI Huping ZHAO Guoqun HE Lianfang | 2008 | Materials Science and Engineering A2008，478，12： | 1 |
| 6 | Finite element method based simulation of stress-strain field in the quenching process 显示文摘 | LI Huiping ZHAO Guoqun HE Lianfang | 2008 | Materials Science and Engineering A2008，478，12： | 1 |
| 7 | Solution of non-linear thermal transientproblems by a new a- daptive time-step method in quenching process 显示文摘 | LI Huiping ZHAO Guoqun HE Lianfang | 2009 | Applied Mathematical Modelling2009，33，1： | 1 |
| 8 | Solution of non-linear thermal transient problems by a new adaptive time-step method in quenching process显示文摘 | Huiping Li Guoqun Zhao Lianfang He Yue Mo | 2007 | Applied Mathematical Modelling2007，，1： | 1 |
| 9 | Solution of non-linear thermal transient problems by a new adaptive time-step method in quenching process显示文摘 | Li Huiping Zhao Guoqun He Lianfang Mo Yue | 2009 | Applied Mathematical Modelling2009，，32： | 1 |
| 10 | Constitutive relationships of hot stamping boron steel B1500HS based on the modified Arrhenius and Johnson–Cook model显示文摘 | Huiping Li Lianfang He Guoqun Zhao Lei Zhang | 2013 | Materials Science & Engineering A2013，，： | 1 |
| 11 | Finite element meth-od based simulation of stress-strain field in the quenching process 显示文摘 | Li Huiping Zhao Guoqun He Lianfang | 2008 | Materials Science and Engineering A2008，，478： | 1 |
| 12 | Measurementand analysis of time-temperature-transformation curves ofboron steel 22MnB5显示文摘 | HE Lianfang ZHAO Guoqun LI Huiping | 2010 | Applied Mechanics andMaterials2010，2932，： | 1 |
| 13 | QoS Routing and Traffic Scheduling in Long-Distance 802.11 Wireless Mesh Networks显示文摘 | ZHAO Zenghua HE Ming ZHANG Jie ZHANG Lianfang | 2012 | Chinese Journal of Electronics2012，21，2： | 1 |
| 14 | Benzene Removal Using Non-thermal Plasma with CuO/AC Catalyst: Reaction Condition Optimization and Decomposition Mechanism显示文摘 | Ning Xu Weina Fu Chi He Lianfang Cao Xiaohe Liu Jinglian Zhao Hua Pan | 2014 | Plasma Chemistry and Plasma Processing2014，，6： | 1 |
| 15 | Microdosimetric Spectrum and Radial Dose Distribution of ^(252)Cf α Ray in TE Gas显示文摘MicrodosimetricSpectrumandRadialDoseDistributionof^(252)CfαRayinTEGas￥ZhuLianfang;LiXuekan;ChenXuebing;HeYusheng;SuYouwuandJi?.. | Zhu Lianfang Li Xuekan Chen Xuebing He Yusheng Su Youwu and Jiao Dunpang | 1996 | IMP & HIRFL Annual Report1996，，1： | 0 |
| 16 | Microdosimetric Spectrum and Radial Dose Distribution of ^(239)Pn or Ray in CH_4 Gas显示文摘MicrodosimetricSpectrumandRadialDoseDistributionof^(239)PnorRayinCH_4Gas￥ZhuLianfang;LiXuekan;ChenXuebing;HeYusheng;SuYouwuand... | Zhu Lianfang Li Xuekan Chen Xuebing He Yusheng Su Youwu and Jiao Dunpang | 1996 | IMP & HIRFL Annual Report1996，，1： | 0 |
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