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| 1 | Photochemical properties and source of pollutants during continuous pollution episodes in Beijing, October, 2011显示文摘Beijing sufered from serious air pollution in October, 2011 with the occurrence of three continuous episodes. Here we analyze the pollution status of particulate matter, the relationship between the gaseous pollutants, physical and chemical properties of single particles, and the profile of watersoluble ions in PM2.5during the three episodes. Regional and photochemically aged air masses, which were characterized as having high values of O3and SO2, were hypothesized to have played a dominant role in the first episode. After mixing local air masses with freshly-emitted primary pollutants, the concentration of NOx continued to increase and the size of SO4 2, NO3 and NH4 +in the particle population continued to become smaller. The amount of elemental carbon-rich and organic carbonrich particles in the scaled single particles(0.2–2 μm) and water-soluble K+in PM2.5also increased in the episodes. All the available information suggests that the biomass or fuel burning sources in or around Beijing may have had a huge impact on the last two episodes. | Jian Gao Yuechong Zhang Meng Zhang Jingqiao Zhang Shulan Wang Jun Tao Han Wang Datong Luo Fahe Chai Chun Ren | 2014 | Journal of Environmental Sciences2014,26,1: | 4 |
| 2 | Identification and Physical Mapping of New PCR-Based Markers Specific for the Long Arm of Rye(Secale cereale L.) Chromosome 6显示文摘To effectively use elite genes on the long arm of rye chromosome 6(the 6RL arm) in wheat breeding programs,precise and fast identification of 6RL chromatin in wheat backgrounds is necessary.PCR-based 6RL-specific markers can facilitate the detection of elite genes on 6RL in wheat breeding.However,only a limited number of 6RL-specific markers have been developed.In the present study.300 new PCR-based 6RL-specific markers were identified using specific length amplified fragment sequencing(SLAF-seq) technology,and were further physically mapped to four regions on the 6RL arm using 6R and 6RL deletion lines.Interestingly,127 of the 300 markers were physically localized to a region from the site between 2.3 and 2.5 to the telomere,the same region where the powdery mildew resistance gene was mapped.In addition,95 of the 300 markers exhibit polymorphisms,which can be used to investigate the diversity of rye 6RL arms.The markers developed in this study can be used to identify given segments of 6RL in wheat backgrounds and accelerate the utilization of elite genes on 6RL in wheat breeding. | Meng Li Zongxiang Tang Ling Qiu Yangyang Wang Shuyao Tang Shulan Fu | 2016 | Journal of Genetics and Genomics2016,43,4: | 2 |
| 3 | Separation of thori-um (IV ) and extracting rare earths from sulfuric andphosphoric acid solutions by solvent extraction method显示文摘 | Li Deqian Zuo Yong Meng Shulan | 2004 | Journal of Alloys and Compounds2004,,374: | 1 |
| 4 | SHP‐2 phosphatase promotes cervical cancer cell proliferation through inhibiting interferon‐β production显示文摘 | Fei Meng Xiaoyun Zhao Shulan Zhang | 2012 | Journal of Obstetrics and Gynaecology Research2012,,1: | 1 |
| 5 | Synthesis and characterization of uhrafine CeF3 nanoparticles modified by catanionic surfactant via a reverse micelles route 显示文摘 | Zhang Hui Li Hongfei Li Deqian Meng Shulan | 2006 | Journal of Colloid and Interface Science2006,302,2: | 1 |
| 6 | Separation of thorium(Ⅳ)and extracting rare earths from sulfuric and phosphoric acid solutions by solvent extraction method显示文摘 | Li Deqian Zuo Yong Meng Shulan | 2004 | Journal of Alloys and Compounds2004,374,12: | 1 |
| 7 | Separation of thorium (Ⅳ) and extracting rare earths tirom sulfuric and phosphoric acid solutions by solvent extraction method显示文摘 | Li Deqian Zuo Yong Meng Shulan | 2004 | Journal of Alloys and Compounds2004,374,12: | 1 |
| 8 | separation of thorium(Ⅳ) and extracting rare earths from sulfuricand phosphoric acid solutions by solvent extraction method 显示文摘 | Deqian Li Yong Zuo Shulan Meng | 2004 | Journal of Alloys and Compounds2004,374,: | 1 |
| 9 | Extraction and stripping of Ytterbium (III) from H2SO4 medium by Cyanex 923显示文摘 | Wang Weiwei Wang Xianglan Meng Shulan | 2006 | Journal of Rare Earths2006,24,: | 1 |
| 10 | Extraction and stripping of ytterbium (Ⅲ ) from H2SO4 medium by cyanex 923 显示文摘 | Wang Weiwei Wang Xianglan Meng Shulan | 2006 | J Rare Earths2006,24,: | 1 |
| 11 | Lead toxicity thresholds in 17 Chinese soils based on substrate-induced nitrification assay显示文摘The influence of soil properties on toxicity threshold values for Pb toward soil microbial processes is poorly recognized. The impact of leaching on the Pb threshold has not been assessed systematically. Lead toxicity was screened in 17 Chinese soils using a substrate-induced nitrification(SIN) assay under both leached and unleached conditions.The effective concentration of added Pb causing 50% inhibition(EC50) ranged from 185 to> 2515 mg/kg soil for leached soil and 130 to > 2490 mg/kg soil for unleached soil. These results represented > 13- and > 19-fold variations among leached and unleached soils,respectively. Leaching significantly reduced Pb toxicity for 70% of both alkaline and acidic soils tested, with an average leaching factor of 3.0. Soil p H and CEC were the two most useful predictors of Pb toxicity in soils, explaining over 90% of variance in the unleached EC50 value. The relationships established in the present study predicted Pb toxicity within a factor of two of measured values. These relationships between Pb toxicity and soil properties could be used to establish site-specific guidance on Pb toxicity thresholds. | Ji Li Yizong Huang Ying Hu Shulan Jin Qiongli Bao Fei Wang Meng Xiang Huiting Xie | 2016 | Journal of Environmental Sciences2016,28,6: | 0 |