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Corrigendum to “High-fidelity prediction of forming quality for self-piercing riveted joints in aluminum alloy based on machine learning” [Mater. Today Commun. 41 (2024) 110319]

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Materials Today Communications 2024年 41卷

作者： Qingjun Wu Yang Liu Yilin Dai Hao Guo Yuqi Wang Weimin Zhuang School of Mechanical and Automotive Engineering Qingdao University of Technology Qingdao 266520 China College of Mechanical and Electrical Engineering Qingdao University Qingdao 266071 China State Key Laboratory of Automotive Simulation and Control Jilin University Changchun 130022 China

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Chemical characteristics and health risks of trace metals in PM2.5 from firework/firecracker burning during the Spring Festival in North China

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IOP Conference Series: Earth and Environmental Science 2020年第1期489卷

作者： Yufang Hao Xiangpeng Meng Xuepu Yu Mingli Lei Wenjun Li Wenwen Yang Fangtian Shi Shaodong Xie College of Environmental Sciences and Engineering State Key Joint Laboratory of Environmental Simulation and Pollution Control Peking University Beijing 100871 China Environmental Monitoring Station Chifeng Municipal Environmental Protection Bureau Inner Mongolia Chifeng 024000 China

Firework/firecracker (FF) burning can significantly deteriorate air quality, whereas little is known about its influences on the elemental composition and associated health risks. Fine particles (PM2.5) and trace elements were characterized based on a multi-site campaign at Chifeng, China around 2016 Chinese Spring Festival (SF). Severe pollution levels average of 57.70 μg m−3 were observed during the SF with maximum to 471.00 μg m−3 shortly after the intensive FF activities. Largely enhanced PM2.5-bound metals were found in both urban and rural sites especially for K (8.27±5.36 μg m−3) and Al (2.36±1.41 μg m−3). Ba and Sr as the tracer of fireworks also increased more than 20-fold compared to non-SF period. Accordingly, FF burning factor identified via PMF model contributed significantly to the total elemental mass (71.34±24.94%) during the SF. Its major impacts on both crustal elements as Al, Ca, K and heavy metals as Cr, Cu and Pb were both identified. Elevated non-cancer risks (0.76 to children, 0.11 to adults) and cancer risks (3.96 × 10−6) were assessed during the SF, with As, Cd, Pb exerted the most adverse threats. The FF burning contributed the second largest share of the health threats after coal combustion, accounted for 28.35% and 12.64% of non-cancer risks for children and adults, respectively, and 10.03% of cancer risks, respectively. This study provided scientific evidences for stricter firework/firecracker regulations to protect public health.

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Reduced Atmospheric Sulfate Enhances Fine Particulate Nitrate Formation in Eastern China

SSRN

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SSRN 2023年

作者： Wen, Liang Xue, Likun Dong, Can Wang, Xinfeng Chen, Tianshu Jiang, Ying Gu, Rongrong Zheng, Penggang Li, Hongyong Shan, Ye Zhu, Yujiao Zhao, Yong Yin, Xiangkun Liu, Hengde Gao, Jian Wu, Zhijun Wang, Tao Herrmann, Hartmut Wang, Wenxing Environment Research Institute Shandong University Shandong Qingdao266237 China Taishan National Reference Climatological Station Shandong Tai'An271000 China Chinese Research Academy of Environmental Sciences Beijing100012 China State Key Joint Laboratory of Environmental Simulation and Pollution Control College of Environmental Sciences and Engineering Peking University Beijing100871 China Department of Civil and Environmental Engineering Hong Kong Polytechnic University 99907 Hong Kong Permoserstraße 15 Leipzig04318 Germany School of Environmental Science and Engineering Shandong University Shandong Qingdao266237 China

Nitrate (NO3-) is a major component of atmospheric fine particles. Recent studies have reported the increasing trend of NO3- in contrast to the ongoing control of nitrogen oxides (NOx) in eastern China. Here, we elucidate the effects of the reduction in sulfur dioxide (SO2) on the enhancement of NO3- formation based on field measurements at the summit of Mt. Tai (1534 m a.s.l) and detailed modelling analyses. From 2007 to 2018, the measured springtime concentrations of various primary pollutants and fine sulfate (SO42-) dropped sharply (-16.4% – -89.7%), while fine NO3- concentration increased by 22.8%. The elevated NO3- cannot be explained by the changes in meteorological conditions or other related parameters, but was largely attributed to the large reduction in SO42- (-73.4%). Results from a multi-phase chemical box model indicate that the reduced SO42- decreased the aerosol acidity and thus prompted the partitioning of HNO3 into the aerosol phase. WRF-Chem model analyses suggest that such a negative effect is a regional phenomenon throughout the planetary boundary layer over eastern China. This study provides new insights into the worsening situation of NO3- aerosol pollution and has important implications for haze pollution control in China. © 2023, The Authors. All rights reserved.

关键词： Nitrates

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Analysis of Energy Return on Investment of China's Oil and Gas Production

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IOP Conference Series: Earth and Environmental Science 2018年第1期146卷

作者： Zhaoyang Kong Xiucheng Dong Qingzhe Jiang School of Environment and State Key Joint Laboratory of Environment Simulation and Pollution Control Tsinghua University Beijing 100084 P.R. China School of International Trade and Economics University of International Business and Economics Beijing 100029 China.

China ranks No.1 and No.3 respectively in global oil and gas consumption. Examination of viability of oil and gas resources could provide useful information in gauging economic vulnerability of future oil and gas supply in China. Energy Return on Investment (EROI) is an important index to characterize the viability of a natural resource from an energy viewpoint. This paper calculates EROI for oil and gas exploration (EROIOGE) and EROI for light oil products (EROILOP) in China. The results show that the EROIOGE decreased from approximately 16.4 in 1985 to 8.4 in 2003, and then increased to 12.2 in 2012. The EROIOGE in recent years are due to the increasing of gas production. As a trade-off between the decrease of oil extraction efficiency and the increase of oil processing efficiency, the EROILOP fluctuated around 4. The results suggest that China should develop the natural gas industry and improve the oil processing efficiency vigorously.

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Back Cover Image: Carbon Neutralization, Volume 2, Issue 5, September 2023

Carbon Neutralization

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Carbon Neutralization 2023年第5期2卷

作者： Zhenhai Gao Haicheng Xie Xianbin Yang Lisheng Zhang Hanqing Yu Wentao Wang Yongfeng Liu Youqing Xu Bin Ma Xinhua Liu Siyan Chen College of Automotive Engineering Jilin University Changchun China State Key Laboratory of Automotive Simulation and Control Jilin University Changchun China School of Transportation Science and Engineering Beihang University Beijing China State Grid Jilin Electric Power Company Limited Changchun China

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Author Correction: China's greenhouse gas emissions for cropping systems from 1978-2016

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Scientific data 2023年第1期10卷 122页

作者： Dijuan Liang Xi Lu Minghao Zhuang Guang Shi Chengyu Hu Shuxiao Wang Jiming Hao Beijing Laboratory of Environmental Frontier Technologies School of Environment Tsinghua University Beijing 100084 China. Department of Environmental Health Harvard T.H. Chan School of Public Health Boston MA USA. Beijing Laboratory of Environmental Frontier Technologies School of Environment Tsinghua University Beijing 100084 China. xilu@***. State Key Joint Laboratory of Environment Simulation and Pollution Control and State Environmental Protection Key Laboratory of Sources and Control of Air Pollution Complex Tsinghua University Beijing 100084 P. R. China. xilu@***. College of Resources and Environmental Sciences National Academy of Agriculture Green Development Key Laboratory of Plant-Soil Interactions of MOE China Agricultural University Beijing P.R. China. School of Computer Science China University of Geosciences Wuhan 430074 China. State Key Joint Laboratory of Environment Simulation and Pollution Control and State Environmental Protection Key Laboratory of Sources and Control of Air Pollution Complex Tsinghua University Beijing 100084 P. R. China.

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Cover Picture: Unlocking the Electrocatalytic Activity of Chemically Inert Amorphous Carbon-Nitrogen for Oxygen Reduction: Discerning and Refactoring Chaotic Bonds (ChemElectroChem 6/2017)

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ChemElectroChem 2017年第6期4卷 1266-1266页

作者： Cai Zhang Prof. Dr. Wei Zhang Prof. Dr. Shansheng Yu Dong Wang Dr. Wenjing Zhang Prof. Dr. Weitao Zheng Prof. Dr. Mao Wen Prof. Dr. Hongwei Tian Prof. Dr. Keke Huang Prof. Dr. Shouhua Feng Janet Jonna Bentzen Department of Materials Science and Key Laboratory of Mobile Materials MOE and State Key Laboratory of Automotive Simulation and Control Jilin University Changchun 130012 China CIC Energigune Miñano 01510 and Ikerbasque Basque Foundation for Science Bilbao 48013 Spain Department of Energy Conversion and Storage Technical University of Denmark Roskilde 4000 Denmark State Key Laboratory of Inorganic Synthesis and Preparative Chemistry College of Chemistry Jilin University Changchun 130012 China

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Significant chlorine emissions from biomass burning affect the long-term atmospheric chemistry in Asia

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National Science Review 2024年第9期11卷 213-222页

作者： Di Chang Qinyi Li Zhe Wang Jianing Dai Xiao Fu Jia Guo Lei Zhu Dongchuan Pu Carlos A.Cuevas Rafael P.Fernandez Weigang Wang Maofa Ge Jimmy C.H.Fung Alexis K.H.Lau Claire Granier Guy Brasseur Andrea Pozzer Alfonso Saiz-Lopez Yu Song Tao Wang Atmospheric Chemistry Department Max Planck Institute for Chemistry Department of Atmospheric Chemistry and Climate Institute of Physical Chemistry Blas CabreraCSIC Department of Civil and Environmental Engineering The Hong Kong Polytechnic University Environment Research Institute Shandong University Division of Environment and Sustainability The Hong Kong University of Science and Technology Environmental Modeling Group Max Planck Institute for Meteorology Institute of Environment and Ecology Tsinghua Shenzhen International Graduate SchoolTsinghua University Environmental Central Facility Institute for the Environment The Hong Kong University of Science and Technology Atmospheric Chemistry Modeling& Remote Sensing Research Group Southern University of Science and Technology Institute for Interdisciplinary Science (ICB) National Research Council (CONICET)FCEN-UNCuyo Institute of Chemistry Chinese Academy of Sciences NOAA Chemical Sciences Laboratory/CIRES University of Colorado Laboratoire d’Aerologie CNRSUniversity of Toulouse UPS Atmospheric Chemistry Observation & Modeling Laboratory National Center for Atmospheric Research State Key Joint Laboratory of Environmental Simulation and Pollution Control Department of Environmental Science Peking University

Biomass burning（BB） is a major source of trace gases and particles in the atmosphere,influencing air quality,radiative balance,and *** studies have mainly focused on the BB emissions of carbon and nitrogen species with less attention on *** chlorine chemistry has significant effects on atmospheric chemistry and air ***,quantitative information on chlorine emissions from BB,particularly the long-term trend and associated atmospheric impacts,is limited both on regional and global ***,we report a long-term（20 01-2018） high-resolution BB emission inventory for the major chlorine-containing compounds（HCl,chloride,and CH3Cl） in Asia based on satellite *** estimate an average of 730 Gg yr-1chlorine emitted from BB activity in Asia,with China contributing the largest share at 24.2%(177 Gg yr-1),followed by Myanmar at 18.7% and India at 18.3%.Distinct seasonal patterns and significant spatial and interannual variability are observe d,mainly driven by human-mediated changes in agricultural *** incorporating the newly developed chlorine emission inventory into a global chemistry-climate model（CAM-Chem）,we find that the BB-chlorine emissions lead to elevated levels of HCl and CH3Cl(monthly average up to 2062 and 1421 parts per trillion by volume（pptv）,respectively),subsequently resulting in noticeable changes in oxidants（up to 3.1% in O3and 17% in OH radicals）.The results demonstrate that BB is not only a significant source of air pollutants but also of oxidants,suggesting a larger role of BB emissions in the atmospheric chemistry and oxidation process than previously *** light of the projected increase in BB activity toward the end of the century and the extensive control of anthropogenic emissions worldwide,the contribution of BB emissions may become fundamental to air quality composition in the future.

关键词： biomass burning emission chlorine emission inventory tropospheric halogen chemistry atmospheric oxidants CAM-Chem model

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Continental scale structuring of forest and soil diversity via functional traits (vol 3, pg 1298, 2019)

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NATURE ECOLOGY & EVOLUTION 2019年第11期3卷 1607-1607页

作者： Buzzard, Vanessa Michaletz, Sean T. Deng, Ye He, Zhili Ning, Daliang Shen, Lina Tu, Qichao Van Nostrand, Joy D. Voordeckers, James W. Wang, Jianjun Weiser, Michael D. Kaspari, Michael Waide, Robert B. Zhou, Jizhong Enquist, Brian J. Department of Ecology and Evolutionary Biology University of Arizona Tucson USA Los Alamos National Laboratory Earth and Environmental Sciences Division Los Alamos USA Department of Botany and Biodiversity Research Centre University of British Columbia Vancouver Canada Institute for Environmental Genomics and Department of Microbiology and Plant Biology School of Civil Engineering and Environmental Sciences University of Oklahoma Norman USA Chinese Academy of Sciences Key Laboratory of Environmental Biotechnology Research Center for Eco-Environmental Sciences Beijing China Environmental Microbiomics Research Center School of Environmental Science and Engineering Sun Yat-sen University Guangzhou China Southern Marine Science and Engineering Guangdong Laboratory Zhuhai China Institute of Marine Science and Technology Shandong University Qingdao China Geographical Ecology Group Department of Biology University of Oklahoma Norman USA Smithsonian Tropical Research Institute Balboa Republic of Panama Department of Biology University of New Mexico Albuquerque USA Earth and Environmental Sciences Lawrence Berkeley National Laboratory Berkeley USA State Key Joint Laboratory of Environment Simulation and Pollution Control School of Environment Tsinghua University Beijing China The Santa Fe Institute Santa Fe USA

Trait-based ecology claims to offer a mechanistic approach for explaining the drivers that structure biological diversity and predicting the responses of species, trophic interactions and ecosystems to environmental change. However, support for this claim is lacking across broad taxonomic groups. A framework for defining ecosystem processes in terms of the functional traits of their constituent taxa across large spatial scales is needed. Here, we provide a comprehensive assessment of the linkages between climate, plant traits and soil microbial traits at many sites spanning a broad latitudinal temperature gradient from tropical to subalpine forests. Our results show that temperature drives coordinated shifts in most plant and soil bacterial traits but these relationships are not observed for most fungal traits. Shifts in plant traits are mechanistically associated with soil bacterial functional traits related to carbon (C), nitrogen (N) and phosphorus (P) cycling, indicating that microbial processes are tightly linked to variation in plant traits that influence rates of ecosystem decomposition and nutrient cycling. Our results are consistent with hypotheses that diversity gradients reflect shifts in phenotypic optima signifying local temperature adaptation mediated by soil nutrient availability and metabolism. They underscore the importance of temperature in structuring the functional diversity of plants and soil microbes in forest ecosystems and how this is coupled to biogeochemical processes via functional traits.

关键词： Forest continental personality trait FUNCTIONALS

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On-Road Mobile Mapping of Spatial Variations and Source Contributions of Ammonia in Beijing, China

SSRN

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SSRN 2022年

作者： Pu, Weiwei Sheng, Jiujiang Tian, Ping Huang, Mengyu Liu, Xiangxue Collett, Jeffrey L. Li, Ziming Zhao, Xiujuan He, Di Dong, Fan Zhang, Nannan Quan, Weijun Qiu, Yulu Song, Yu Lin, Weili Pan, Yuepeng Ma, Zhiqiang Institute of Urban Meteorology China Meteorological Administration Beijing100089 China Environmental Meteorology Forecast Center of Beijing-Tianjin-Hebei Beijing100089 China Bejing Weather Modification Center Beijing100089 China Department of Atmospheric Science Colorado State University Fort CollinsCO80523 United States Beijing Shangdianzi Regional Atmosphere Watch Station Beijing101507 China State Key Joint Laboratory of Environmental Simulation and Pollution Control Department of Environmental Science Peking University Beijing100871 China College of Life & Environmental Science Minzu University of China Beijing100081 China Institute of Atmospheric Physics Chinese Academy of Sciences Beijing100029 China

Ammonia (NH 3 ) measurements were performed with a mobile platform deploying a cavity ring-down spectroscopy NH 3 analyzer in Beijing. The transect and loop sampling strategy revealed that the Beijing urban area is more strongly affected by NH 3 emissions than surrounding areas. Although average enhancements of on-road NH 3 were small compared to background levels, traffic emissions clearly dominated city enhancements of NH 3 , carbon dioxide (CO 2 ), acetaldehyde and acetone. Increments of on-road NH 3 ranged between 5.1ppb and 11.4 ppb in urban areas, representing an enhancement of 20.6% to 47.9% over the urban background. The vehicle NH 3 :CO 2 emission ratio was 0.26 ppb/ppm, about a factor of 1.5 higher than the value derived from the available emission inventory. The obtained NH 3 emission factor was approximately 306.7 mg/kg. If the annual gasoline consumption in Beijing is accurate, annual NH 3 emissions from vehicles are estimated at 1.5 Gg. The influx and outflux of NH 3 in Beijing during monitoring periods fluctuated due to variations of WD, WS, and PBLH. Net fluxes at the 4 th Ring Road were larger than zero, suggesting that local emissions were important in urban Beijing. Negative net fluxes at the 6 th Ring Road reveal a large amount of NH 3 transported from agricultural regions south of Beijing lost during transport across the city, for example by deposition or particle formation the city. Our analyses have important implications for regional NH 3 emission estimates and for improving vehicular NH 3 emission inventory allocations. © 2022, The Authors. All rights reserved.

关键词： Ammonia

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