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Journal of Rare Earths 2018年第9期36卷 974-980页

作者： yingping zheng Xin Zhang zhengying Zhang Ying Li Yueming Sun Yongbing Lou Xiaojun Li Yang Lu College of Chemistry and Chemical Engineering Southeast University Nanjing 211189 China Experimental Testing Center of Hefei Guoxuan High-Tech Power Energy Company Limited Hefei 230011 China

ZnO doped Pt/CeO2 nanocomposites were prepared by electrospinning and reduction *** diffraction（XRD）,transmission electron microscopy（TEM）,energy disperse spectroscopy（EDS） and X-ray photoelectron spectroscopy（XPS） were employed to characterize the *** is observed that ZnO and CeO2 form the hexagonal wurtzite phase and cubic fluorite phase in the nanocomposite,respectively,whilst Pt nanoparticles（NPs） with the number-averaged size of ca.3.1 nm are uniformly distributed on the surface of *** mass fraction of Pt NPs in the nanocomposites is about 10 wt%.The doping of ZnO is effective to promote reactive oxygen species,surface reaction sites and the interaction between Pt and *** catalytic performance of nanocomposites was evaluated by the methanol *** with the catalytic activity,stability of *** a result,it is found that the nanocomposite exhibits much higher activity and stability for methanol oxidation than the undoped Pt/CeO2 catalyst.

关键词： Electrospinning Nanofibers Methanol Electro-oxidation Rare earths

Replacement Operation of Petri Net and Its Application to Systems Hierarchical Modeling

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Systems Science and Systems Engineering 1998年第1期8卷 75-84页

作者： JIANG Changjun LI Caiwei zheng yingping Department of Computer Science Shandong Mining InstituteTaian 271019 Institute of Automation Chinese Acadamy of SciencesBeijing 100080

In this paper, three kinds of replacement operation of Petri net are proposed and the preservation of liveness, fairness, reversibility and behavior under each operation is *** on these operations, a method to model d... 详细信息

关键词： Operation Petri Net Replacement and Hierarchical Application

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铁路移动闭塞系统列车追踪运行的安全间隔

同济大学学报（自然科学版） 2008年第9期36卷 1220-1225页

作者：潘登郑应平同济大学电子与信息工程学院上海200092

分析了我国铁路运输相比于城市轨道交通的特殊性和复杂性;从工程应用角度,确定了列车追踪运行安全间隔的确定依据和计算方法;对复线铁路平直线路上旅客列车追踪运行安全间隔进行了仿真试验;最后,给出了列车制动距离的控制方法.

关键词：移动闭塞系统追踪运行安全间隔制动距离控制

Geological Evidence and Characteristics of Activity of the Wuhe-Mingguang Section of Tancheng-Lujiang Fault Zone in Late Pleistocene

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Earthquake Research in China 2016年第4期30卷 485-499页

作者： Shu Peng Fang Lianghao zheng yingping Lu Shuo Pan Haobo Song Fangmin Li Shengqiang Earthquake Administration of Anhui Province Heifei 230031China Institute of Geology China Earthquake AdministrationBeijing 100029China Earthquake Administration of Hebei Province Shijiazhuang 050021China

As the most influential strike-slip fault in East China,the Tancheng-Lujiang fault zone draws scholars attention for its strong seismic activity. Nevertheless,most research has been conducted along segments in Shandong Province and Bohai Bay where huge earthquakes occur frequently. Meanwhile,it is generally believed that segments lying to the south of Huaihe River have been inactive since the late Quaternary and thus it is incapable of generating moderate or strong earthquakes. However,these understandings about the Tancheng-Lujiang fault have been questioned by our recent work for part of the fault south to the Huaihe River. Based on interpretation of high-resolution satellite images,detailed field investigations near Wuhe county and Mingguang City in northern Anhui Province and elaborate microstructure analysis, we come to the conclusion that the Tancheng-Lujiang fault zone mainly consists of four branches and at least one should be active since the late Pleistocene for the Wuhe-Mingguang section. This segment is monopolized by dextral strike-slip motion in late Quaternary. Different from obvious faults in bed rocks or consolidated sediments,the latest activity trace in Quaternary loose sediment revealed by trench excavation is not obvious or even invisible to visual observation. According to our recent work and previous studies, we call for more attention to be paid to invisible faults in young sediment and also suggest that more research be conducted along this seemingly placid segment.

关键词： Tancheng-Lujiang fault zone South of Huaihe River Wuhe-Mingguang segment Microstructure Late Pleistocene