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	Rural vehicle emission as an important driver for the variations of summertime tropospheric ozone in the Beijing-Tianjin-Hebei region during 2014-2019 期刊论文 OAI收割 JOURNAL OF ENVIRONMENTAL SCIENCES, 2022, 卷号: 114, 期号: 0, 页码: 126-135 作者: Song, Yifei; Zhang, Yuanyuan; Liu, Junfeng; Zhang, Chenglong; Liu, Chengtang \| 收藏 \| 浏览/下载：25/0 \| 提交时间：2022/11/07 GROUND-LEVEL OZONE SURFACE OZONE SIGNIFICANT INCREASE SOURCE APPORTIONMENT PARTICULATE MATTER O-3 CONCENTRATIONS CLIMATE-CHANGE AIR-QUALITY CHINA POLLUTION
	Ozone and SOA formation potential based on photochemical loss of VOCs during the Beijing summer 期刊论文 OAI收割 ENVIRONMENTAL POLLUTION, 2021, 卷号: 285, 页码: - 作者: Zhan, Junlei; Feng, Zeming; Liu, Pengfei \| 收藏 \| 浏览/下载：15/0 \| 提交时间：2021/12/22 Photochemical loss Volatile organic compounds Photochemical initial concentrations O-3 pollution Organic aerosol pollution
	A Thermodynamic Model for Calculating Sulphur Distribution Ratio between CaO-SiO2-MgO-Al2O3 Ironmaking Slags and Carbon Saturated Hot Metal Based on the Ion and Molecule Coexistence Theory 期刊论文 OAI收割 ISIJ INTERNATIONAL, 2009, 卷号: 49, 期号: 12, 页码: 1828-1837 作者: Yang, Xue-min; Jiao, Jin-sha; Ding, Ru-cai; Sh, Cheng-bin; Guo, Han-jie 收藏 \| 浏览/下载：18/0 \| 提交时间：2013/12/11 sulphur distribution ratio CaO-SiO2-MgO-Al2O3 slags hot metal desulphurization thermodynamic model desulphurization contribution of CaO desulphurization contribution of MgO mass action concentrations ion and molecule coexistence theory structural units ion couples
	Energy transfer and red phosphorescence in strontium aluminates doped with Cr3+, Eu2+ and Dy3+ (EI CONFERENCE) 会议论文 OAI收割 Dielectrics in Emerging Technologies -and- Persistent Phosphors - International Symposia, May 15, 2005 - May 20, 2005, Quebec City, QC, Canada 作者: Wang X.; Wang X.; Wang X.; Zhang X.; Zhang X. 收藏 \| 浏览/下载：27/0 \| 提交时间：2013/03/25 Cr3+ activated red (694 nm) long persistent phosphorescence originating from 2E-4A2 transition is observed in 4SrO·7Al2O3: Cr3+ Eu2+ Dy3+ system. It is demonstrated that the red phosphorescence is resulted from the conversion of Eu2+ activated blue phosphorescence through persistence energy transfer from Eu2+ to Cr3+. The excitation spectra of the 694 nm emission exhibit strong f-d band of Eu 2+ indicating the existence of the energy transfer. The dependence of lifetimes and intensities of the red and blue emissions on Cr3+ concentrations are studied. The intensity ratio of the red to blue emission bands obtained from photoluminescence spectra is in good agreement with that obtained from fluorescence lifetime measurements. The decay curves of the red phosphorescence at 694nm are also studied.