Yuan Chen

Nanjing Tech University

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Stefan Norra

Karlsruhe Institute of Technology

Nina Schleicher

Imperial College London

Yang Yu

Chinese Research Academy of Environmental Sciences

Yizhen Chen

Shandong Academy of Agricultural Sciences

Jinhui Li

State Key Joint Laboratory of Environment Simulation and Pollution Control

Mathieu Fricker

German Meteorological Service

Kuang Cen

China University of Geosciences (Beijing)

Fahe Chai

Chinese Research Academy of Environmental Sciences

U. Kaminski

German Meteorological Service

Shaodong Xie

Peking University

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Chinese Academy of Sciences

Tsinghua University

State Key Joint Laboratory of Environment Simulation and Pollution Control

University of Chinese Academy of Sciences

Chinese Research Academy of Environmental Sciences

Peking University

North China Electric Power University

Chongqing University

Zhejiang Center for Disease Control and Prevention

Karlsruhe Institute of Technology

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レーザクラッディングにより作製したインコネル625被覆の改善された高温硬さと耐摩耗性【Powered by NICT】

Journal of Materials Processing Technology (2017)

Feng Kai Yuan Chen Deng Pingshun Li Yuyan Haixing Zhao

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Long-term variation of black carbon and PM2.5 in Beijing, China with respect to meteorological conditions and governmental measures

Environmental Pollution (2016)

Yuan Chen Nina Schleicher Mathieu Fricker Kuang Cen Xiuli Liu

Variation (astronomy)

10.1016/j.envpol.2016.01.008

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Citations (105)

Unintentional production of persistent chlorinated and brominated organic pollutants during iron ore sintering processes

Journal of Hazardous Materials (2017)

Sumei Li Guorui Liu Minghui Zheng Wenbin Liu Jinhui Li

Iron ore

10.1016/j.jhazmat.2017.02.027

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Citations (47)

Study on the influence mechanism of ambient humidity on the temperature rise of decay‐like composite insulators

High Voltage (2021)

Zheng Zhong Yuan Chen Yunpeng Liu Sizu Hou Jianghai Geng

At present, observing the temperature rise of composite insulators is an effective method for the detection of decay-like defects. However, ambient humidity will affect the temperature rise of composite insulators, which will cause problems in screening the decay-like composite insulators. Therefore, it is urgent to study the temperature rise principle of decay-like insulators and find out the influence mechanism of humidity on temperature rise. In this study, a four-electrode system is designed to measure the surface current, volume current and interface current of the decay-like short sample and the intact short sample under different humidity. Then the equivalent circuit models of short samples and the 500 kV full-size decay-like composite insulator are built to analyse the contribution rates of leakage conductance loss and polarisation loss to temperature rise. The results show that the contribution rates of the polarisation loss to the temperature rise of two samples are 35.8% and 23.6% in low humidity, while they are 98.3% and 64.4% in high humidity. For the full-size decay-like composite insulator, the contribution rates of polarisation loss to its temperature rise in high or low humidity are more than 99%. In addition, the proportion of polarisation loss increases at first and then decreases with the increase of the length of the decay-like section. The conclusions of this study provide a theoretical basis for further understanding the corresponding relationship between decay-like defects and temperature rise and improve the detection rate of decay-like insulators.

Leakage (economics)

10.1049/hve2.12170

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Seasonal dynamics of coarse atmospheric particulate matter between 2.5 μm and 80 μm in Beijing and the impact of 2008 Olympic Games

Atmospheric Environment (2015)

Stefan Norra Yang Yu Volker Dietze Nina Schleicher Mathieu Fricker

Seasonality

Particle (ecology)

Mass concentration (chemistry)

Mineral dust

10.1016/j.atmosenv.2015.08.029

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Citations (14)

The Effect of Government Policies on the Temporal Development of Contamination Characteristics Within the Aerosol Distribution in Beijing, China

Springer eBooks (2013)

Yuan Chen Nina Schleicher Yizhen Chen Fahe Chai Shulan Wang

10.1007/978-94-007-7756-9_27

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Citations (5)

Environmental pollution of polybrominated diphenyl ethers from industrial plants in China: a preliminary investigation

Environmental Science and Pollution Research (2016)

Chao Deng Yuan Chen Jinhui Li Ying Li Huafen Li

Congener

Polybrominated Biphenyls

Environmental Pollution

Brominated flame retardant

10.1007/s11356-015-5902-8

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Citations (30)

Flashover mechanism of silicone rubber composite insulators

Journal of Tsinghua University(Science and Technology) (1999)

Yuan Chen

Conventional porcelain and glass insulators have hydrophilic surfaces, so they have poor contamination flashover resistance. Silicone rubber composite insulators have hydrophobic surfaces and their hydrophobicity can migrate into the surface contaminant layers, so their contamination flashover resistance is excellent. Up to now, the contamination flashover mechanism of conventional insulators has been studied in detail, but the study on composite ones is seldom. In this paper, the flashover mechanism of composite insulators was analyzed and their DC contamination flashover model with a flashover channel constituted by many series short arcs and narrow water ribbons was put forward. The model reveals that the cathode and anode drop of short arcs and the high resistance of water ribbons cause the high flashover voltage of composite insulators, and it also reflects the characteristic of this kind of insulator that the current is low and the voltage is high just before the flashover.

Arc flash

Silicone rubber

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Exploitation of Western China and the reuse of municipal sewage

Industrial Water Treatment (2002)

Yuan Chen

Water is the key point in the exploitation of Western China. The treatment technology of oxidation pond(it can also be used as impounding reservoir) can meet the need of sewage treatment and water reuse. The technology can reduce the project investments and the operation expenses remarkably,and it can control municipal sewage pollution well. The effluent can be reused well on developing forestry, grassland and farming of western arid regions. As researches show,before 2010,while the area of wastewater irrigation in forestry, grassland and agriculture amounting to 2～4 times than that of the city area,it will accelerate the development of ecotype forestry agriculture zone, the building of eco city,and the development process of urbanization efficiently.

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Application of WRF/Chem-MADRID Over Southeastern United States: Real-Time Air Quality Forecasting and Sensitivity Simulations

DEStech Transactions on Environment Energy and Earth Science (2017)

Yang Zhang Chinmay Jena Kai Wang Yuan Chen

An advanced online-coupled meteorology-chemistry model, WRF/Chem-MADRID, has been applied for real-time air quality forecast (RT-AQF) in southeastern U.S. since 2009. In this work, the model is evaluated for fine particles (PM2.5) forecast for time periods since winter 2015-2016 and intercompared with previous forecasting periods. The results show consistently good performance for PM2.5, despite the moderate overpredictions in winter 2015-2016. Sensitivity simulations with updated emissions and satellite-constrained boundary conditions show improved skills for PM2.5 forecast for summer 2016 and winter 2016-2017 with NMBs within Â±6% for PM2.5 against observations from AirNow. The modelâ€™s forecasting skills for air quality can be further enhanced by accurately representing pollutant emissions from extreme events such as wildfires.

10.12783/dteees/edep2017/15548

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Citations (1)