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| 1 | Air pollutants contribution and control strategies of energy-use related sources in Beijing显示文摘Based on the statistical analysis of emission inventory and ISCST3 model simulation, the emission and ambient concentration contributions of energy-use related sources to the major pollutants of SO2, NOx and PM10 in urban areas of Beijing were analyzed. The SO2 emission contributions of coal burning in power plants, industrial and heating sectors were 49%, 26% and 24% respectively. The vehicle exhaust contributed 74% of the NOx concentration. As to PM10, the industrial sector was the largest emission (28%) and concentration (21%) contributor despite of the fugitive sources. The source emission contributions of VOC and NH3, which greatly influence the generation of secondary pollutants, were discussed as well. This paper also analyzed the control strategies of energy consumption and vehicle sources, based on which the control scenario in 2008 was established and the change of emission and concentration contribution were estimated. The results show that the cleaner energy use, industrial structure improvement, transportation mode modification and single vehicle emission control will greatly improve air quality. The industrial sector will change to the largest contributor of SO2 and as to NOx, vehicle emission control is still important. | HAO Jiming WANG Litao LI Lin HU Jingnan YU Xuechun | 2005 | Science China Earth Sciences2005,48,z2: | 24 |
| 2 | Epidemiological and risk analysis of the H7N9 subtype influenza outbreak in China at its early stage显示文摘Dozens of human cases infected with H7N9 subtype avian influenza virus (AIV) have been confirmed in China since March, 2013. Distribution data of sexes, ages, professions and regions of the cases were analyzed in this report. The results showed that the elderly cases, especially the male elderly, were significantly more than expected, which is different from human cases of H5N1 avian influenza and human cases of the pandemic H1N1 influenza. The outbreak was rated as a Grade Ⅲ (severe) outbreak, and it would evolve into a Grade IV (very severe) outbreak soon, using a method reported previously. The H7N9 AIV will probably circulate in humans, birds and pigs for years. Moreover, with the driving force of natural selection, the virus will probably evolve into highly pathogenic AIV in birds, and into a deadly pandemic influenza virus in humans. Therefore, the H7N9 outbreak has been assumed severe, and it is likely to become very or extremely severe in the future, highlighting the emergent need of forceful scientific measures to eliminate any infected animal flocks. We also described two possible mild scenarios of the future evolution of the outbreak. | ZHUANG QingYe WANG SuChun WU MeiLi LIU Shuo JIANG WenMing HOU GuangYu LI JinPing WANG KaiCheng YU JianMin CHEN JiMing CHEN JiWang | 2013 | Chinese Science Bulletin2013,58,26: | 18 |
| 3 | Rapid improvement of PM2.5 pollution and associated health benefits in China during 2013–2017显示文摘Exposure to fine particulate matter(PM2.5)is known to harm public health.In China,after implementation of aggressive emissions control measures under the Action Plan of Air Pollution Prevention and Control(2013-2017),air quality has significantly improved.In this work,we investigated changes in PM2.5 exposure and the associated health impacts in China for the period 2013-2017.We used an optimal estimator of PM2.5 combining in-situ observations,satellite measurements,and simulations from a chemical transport model to derive the spatial and temporal variations in PM2.5 exposure,and then used welldeveloped exposure-response functions to estimate the premature deaths attributable to PM2.5 exposure.We found that national population-weighed annual mean PM2.5 concentrations decreased from 67.4μgm-3 in 2013 to 45.5μgm-3 in 2017(32%reduction).This rapid decrease in PM2.5 pollution led to a 14%reduction in premature deaths due to long-term exposure.We estimated that,during 2013-2017,the premature deaths attributable to long-term PM2.5 exposure decreased from 1.2 million(95%CI:1.0,1.3;fraction of total mortality:13%)in 2013 to 1.0 million(95%CI:0.9,1.2;10%)in 2017.Despite the rapid decrease in annual mean PM2.5 concentrations,health benefits associated with reduced long-term exposure were limited,because for many cities,the PM2.5 levels remain at the portion where the exposure-response function is less steeper than that at the lowconcentration end.We also found that the deaths associated with acute exposure decreased by 61%during 2013-2017 due to rapid reduction in the number of heavily polluted days.Our results confirm that clean air policies in China have mitigated the air pollution crisis;however,continuous emissions reduction efforts are required to protect citizens from air pollution. | Tao XUE Jun LIU Qiang ZHANG Guannan GENG Yixuan ZHENG Dan TONG Zhu LIU Dabo GUAN Yu BO Tong ZHU Kebin HE Jiming HAO | 2019 | Science China Earth Sciences2019,62,12: | 17 |
| 4 | Real-world fuel efficiency and exhaust emissions of light-duty diesel vehicles and their correlation with road conditions显示文摘The real-world fuel efficiency and exhaust emission profiles of CO, HC and NOx for light-duty diesel vehicles were investigated. Using a portable emissions measurement system, 16 diesel taxies were tested on different roads in Macao and the data were normalized with the vehicle specific power bin method. The 11 Toyota Corolla diesel taxies have very good fuel economy of (5.9 ± 0.6) L/100 km, while other five diesel taxies showed relatively high values at (8.5 ± 1.7) L/100 km due to the variation in transmission systems and emission control strategies. Compared to similar Corolla gasoline models, the diesel cars confirmed an advantage of ca. 20% higher fuel efficiency. HC and CO emissions of all the 16 taxies are quite low, with the average at (0.05 ± 0.02) g/km and (0.38 ± 0.15) g/km, respectively. The average NOx emission factor of the 11 Corolla taxies is (0.56 ± 0.17) g/km, about three times higher than their gasoline counterparts. Two of the three Hyundai Sonata taxies, configured with exhaust gas recirculation (EGR) + diesel oxidation catalyst (DOC) emission control strategies, indicated significantly higher NO2 emissions and NO2/NOx ratios than other diesel taxies and consequently trigger a concern of possibly adverse impacts on ozone pollution in urban areas with this technology combination. A clear and similar pattern for fuel consumption and for each of the three gaseous pollutant emissions with various road conditions was identified. To save energy and mitigate CO2 emissions as well as other gaseous pollutant emissions in urban area, traffic planning also needs improvement. | Jingnan Hu Ye Wu Zhishi Wang Zhenhua Li Yu Zhou Haitao Wang Xiaofeng Bao Jiming Hao | 2012 | Journal of Environmental Sciences2012,24,5: | 14 |
| 5 | Selection of leading industries for coal resource cities based on coupling coordination of industry's technological innovation显示文摘Taking the city of Qitaihe is as an example in order to provide practical methods for the selection of leading industries for coal resource cities, this paper establishes the specific operation scheme for selection of leading industries according to the actual situation of coal resource cities based on the theory of coupling coordination together with the coupling coordination for technological innovation. The results show that the degree for coupling coordination of the technological innovation for each alternative industry differentiates with the development of coal resource cities. For example, the average degree of food processing industry from agricultural produce is 0.9. Therefore, coal resource cities should develop some industries related to coal industry, such as coking industry, some chemical and medicines industry and non-metallic mineral products manufacturing, in the near future, however, some industries with greater market and influence potentials and low carbon emissions should be attached much importance to in the future. | Du Jiming Yu Bo Yao Xilong | 2012 | International Journal of Mining Science and Technology2012,22,3: | 9 |
| 6 | Air quality during the 2008 Beijing Olympic Games显示文摘 | David G. Streets Joshua S. Fu Carey J. Jang Jiming Hao Kebin He Xiaoyan Tang Yuanhang Zhang Zifa Wang Zuopan Li Qiang Zhang Litao Wang Binyu Wang Carolyne Yu | 2006 | Atmospheric Environment2006,,3: | 6 |
| 7 | Evaluating the emission status of light-duty gasoline vehicles and motorcycles in Macao with real-world remote sensing measurement显示文摘Roadside remote sensing measurement was used to explore the real-world emission status of light duty gasoline vehicles(LDGVs) and motorcycles in Macao. Both fuel-based and distance-based emission factors were derived using the mass balance method. The emission concentration profile of LDGVs illustrated the benefits of tightening emission standards at the source country or region of import. The distance-based emission factors for CO, HC and NOx of LDGVs registered before 2000 were 8.00, 1.04 and 1.36 g/km,respectively. The distance-based emission factors for CO, HC and NOx of LDGVs registered in or after 2000 were 1.16, 0.15 and 0.18 g/km, respectively. The fuel-based CO emission factors of light duty motorcycles(LDMCs) and heavy duty motorcycles(HDMCs) registered before 2000 were about 10 times higher than those of LDGVs of the same age group. As the emissions of LDGVs decreased more quickly after 2000, the gap widens for newer vehicles.The distance-based HC emission factors of LDMCs and HDMCs registered before 2000 were4.81 and 2.91 g/km, respectively. The distance-based HC emission factors of LDMCs and HDMCs registered in or after 2000 were 3.52 and 0.93 g/km, respectively. The poor emission performance of motorcycles and their larger share in the traffic flow will cause them to be the major contributor to traffic CO and HC emissions. LDMCs, especially two-stroke models,should be the priority for vehicle emission control efforts in Macao. | Yu Zhou Ye Wu Shaojun Zhang Lixin Fu Jiming Hao | 2014 | Journal of Environmental Sciences2014,26,11: | 3 |
| 8 | Effect of aging treatment on microstructure and corrosion behavior of Al-Zn-Mg aluminum alloy in aqueous solutions with different aggressive ions显示文摘The microstructure and corrosion behavior of Al-Zn-Mg alloy(namely 7×××)after natural aging treatment(NAT)and artificial aging treatment(AAT)in aqueous NaCl solutions containing different aggressive ions have been investigated in current work.Results of microstructure characterization demonstrate that the aging treatment has a great influence on the grain size and precipitates.The grain size is relatively sizeable and no evident precipitates are observed in alloy after NAT comparable with that after AAT.The electrochemical corrosion behavior of alloy was studied by polarization curve and electrochemical impedance spectroscopy(EIS).The corrosion potential(E_(corr))of the aluminum alloy is more negative in 3.5 wt.%NaCl containing 0.052 wt.%NaHSO_(3)solution than that in 3.5 wt.%NaCl solutions with or without 0.907 wt.%NaHCO_(3).Charge transfer resistance(Rct)results reveal that alloy after AAT has an enhancement of corrosion resistance compare with that after NAT.With the immersion time increasing,mostly pitting spreads over the surface of the alloy only in NaCl solution,whereas exfoliation corrosion mainly occurs in NaCl solutions containing NaHSO_(3)or NaHCO_(3). | Pan Liu Lulu Hu Qinhao Zhang Cuiping Yang Zuosi Yu Jianqing Zhang Jiming Hu Fahe Cao | 2021 | Journal of Materials Science & Technology2021,,5: | 3 |
| 9 | The impact of transportation control measures on emission reductions during the 2008 Olympic Games in Beijing, China显示文摘 | Yu Zhou Ye Wu Liu Yang Lixin Fu Kebin He Shuxiao Wang Jiming Hao Jinchuan Chen Chunyan Li | 2009 | Atmospheric Environment2009,,3: | 2 |
| 10 | Air quality for metals and sulfur in Shanghai, China, determined with moss bags显示文摘 | Tong Cao Min Wang Li An Yinghao Yu Yuxia Lou Shuiliang Guo Benrong Zuo Yan Liu Jiming Wu Yang Cao Zhirui Zhu | 2008 | Environmental Pollution2008,,: | 1 |
| 11 | Assessment of air quality benefits from national air pollution control policies in China. Part II: Evaluation of air quality predictions and air quality benefits assessment显示文摘 | Litao Wang Carey Jang Yang Zhang Kai Wang Qiang Zhang David Streets Joshua Fu Yu Lei Jeremy Schreifels Kebin He Jiming Hao Yun-Fat Lam Jerry Lin Nicholas Meskhidze Scott Voorhees Dale Evarts Sharon Phillips | 2010 | Atmospheric Environment2010,,28: | 1 |
| 12 | Spatial and temporal changes of heavy metal concentrations in mosses and its indication to the environments in the past 40 years in the city of Shanghai, China显示文摘 | Tong Cao Li An Min Wang Yuxia Lou Yinghao Yu Jiming Wu Zhirui Zhu Yangkung Qing Janice Glime | 2008 | Atmospheric Environment2008,,21: | 1 |
| 13 | Air quality during the 2008 Beijing Olympic Games显示文摘 | David G. Streets Joshua S. Fu Carey J. Jang Jiming Hao Kebin He Xiaoyan Tang Yuanhang Zhang Zifa Wang Zuopan Li Qiang Zhang Litao Wang Binyu Wang Carolyne Yu | 2006 | Atmospheric Environment2006,,3: | 1 |
| 14 | Establishment of a database of emission factors for atmospheric pollutants from Chinese coal-fired power plants显示文摘 | Yu Zhao Shuxiao Wang Chris P. Nielsen Xinghua Li Jiming Hao | 2010 | Atmospheric Environment2010,,12: | 1 |
| 15 | Primary air pollutant emissions of coal-fired power plants in China: Current status and future prediction显示文摘 | Yu Zhao Shuxiao Wang Lei Duan Yu Lei Pengfei Cao Jiming Hao | 2008 | Atmospheric Environment2008,,36: | 1 |
| 16 | Enhancement of the electrocatalytic oxidation of antibiotic wastewater over the conductive black carbon-PbO2 electrode prepared using novel green approach显示文摘The secondary pollution caused by modification of an electrode due to doping of harmful materials has long been a big concern.In this study,an environmentally friendly material,conductive carbon black,was adopted for modification of lead dioxide electrode(Pb02).It was observed that the as-prepared conductive carbon black modified electrode(C-PbO2)exhibited an enhanced electrocatalytical performance and more stable structure than a pristine Pb02 electrode,and the removal efficiency of metronidazole(MNZ)and COD by a 1.0%C-Pb02 electrode at optimal conditions was increased by 24.66%and 7.01%,respectively.Results revealed that the electrochemical degradation of MNZ wastewater followed pseudo-first-order kinetics.This intimates that the presence of conductive carbon black could improve the current efficiency,promote the generation of hydroxyl radicals,and accelerate the removal of MNZ through oxidation.In addition,MNZ degradation pathways through a C-Pb02 electrode were proposed based on the identified intermediates.To promote the electrode to treat antibiotic wastewater,optimal experimental conditions were predicted through the Box-Behnken design(BBD)method.The results of this study suggest that a C-Pb02 electrode may represent a promising functional material to pretreat antibiotic wastewaters. | Xiangyu Wang Yu Xie Guizhen Yang Jiming Hao Jun Ma Ping Ning | 2020 | Frontiers of Environmental Science & Engineering2020,14,2: | 1 |
| 17 | Long-term trend of haze pollution and impact of particulate matter in the Yangtze River Delta, China显示文摘 | Zhen Cheng Shuxiao Wang Jingkun Jiang Qingyan Fu Changhong Chen Bingye Xu Jianqiao Yu Xiao Fu Jiming Hao | 2013 | Environmental Pollution2013,,: | 1 |
| 18 | Research on calculation method of text similarity based on smooth inverse frequency显示文摘In order to improve the accuracy of text similarity calculation,this paper presents a text similarity function part of speech and word order-smooth inverse frequency(PO-SIF)based on sentence vector,which optimizes the classical SIF calculation method in two aspects:part of speech and word order.The classical SIF algorithm is to calculate sentence similarity by getting a sentence vector through weighting and reducing noise.However,the different methods of weighting or reducing noise would affect the efficiency and the accuracy of similarity calculation.In our proposed PO-SIF,the weight parameters of the SIF sentence vector are first updated by the part of speech subtraction factor,to determine the most crucial words.Furthermore,PO-SIF calculates the sentence vector similarity taking into the account of word order,which overcomes the drawback of similarity analysis that is mostly based on the word frequency.The experimental results validate the performance of our proposed PO-SIF on improving the accuracy of text similarity calculation. | Yuan Ye Yu Minmin Liu Jiming | 2020 | The Journal of China Universities of Posts and Telecommunications2020,27,2: | 1 |
| 19 | Science with the 2.5-meter Wide Field Survey Telescope(WFST)显示文摘The Wide Field Survey Telescope(WFST) is a dedicated photometric surveying facility being built jointly by University of Science and Technology of China(USTC) and the Purple Mountain Observatory(PMO). It is equipped with a 2.5-meter diameter primary mirror, an active optics system, and a mosaic CCD camera with 0.73 gigapixels on the primary focal plane for highquality image capture over a 6.5-square-degree field of view. The installation of WFST near the summit of Saishiteng mountain in the Lenghu region is scheduled in summer of 2023, and the operation is planned to start three months later. WFST will scan the northern sky in four optical bands(u, g, r and i) at cadences from hourly/daily in the deep high-cadence survey(DHS) program, to semi-weekly in the wide field survey(WFS) program. During a photometric night, a nominal 30 s exposure in the WFS program will reach a depth of 22.27, 23.32, 22.84, and 22.31(AB magnitudes) in these four bands, respectively, allowing for the detection of a tremendous amount of transients in the low-z universe and a systematic investigation of the variability of Galactic and extragalactic objects. In the DHS program, intranight 90 s exposures as deep as 23(u) and 24 mag(g), in combination with target of opportunity follow-ups, will provide a unique opportunity to explore energetic transients in demand for high sensitivities, including the electromagnetic counterparts of gravitational wave events, supernovae within a few hours of their explosions,tidal disruption events and fast, luminous optical transients even beyond redshift of unity. In addition, the final 6-year co-added images, anticipated to reach g■25.8 mag in WFS or 1.5 mags deeper in DHS, will be of fundamental importance to general Galactic and extragalactic science. The highly uniform legacy surveys of WFST will serve as an indispensable complement to those of the Vera C. Rubin Observatory's Legacy Survey of Space and Time(LSST) that monitors the southern sky. | Tinggui Wang Guilin Liu Zhenyi Cai Jinjun Geng Min Fang Haoning He Ji-an Jiang Ning Jiang Xu Kong Bin Li Ye Li Wentao Luo Zhizheng Pan Xuefeng Wu Ji Yang Jiming Yu Xianzhong Zheng Qingfeng Zhu Yi-Fu Cai Yuanyuan Chen Zhiwei Chen Zigao Dai Lulu Fan Yizhong Fan Wenjuan Fang Zhicheng He Lei Hu Maokai Hu Zhiping Jin Zhibo Jiang Guoliang Li Fan Li Xuzhi Li Runduo Liang Zheyu Lin Qingzhong Liu Wenhao Liu Zhengyan Liu Wei Liu Yao Liu Zheng Lou Han Qu Zhenfeng Sheng Jianchun Shi Yiping Shu Zhenbo Su Tianrui Sun Hongchi Wang Huiyuan Wang Jian Wang Junxian Wang Daming Wei Junjie Wei Yongquan Xue Jingzhi Yan Chao Yang Ye Yuan Yefei Yuan Hongxin Zhang Miaomiao Zhang Haibin Zhao Wen Zhao | 2023 | Science China(Physics,Mechanics & Astronomy)2023,66,10: | 1 |
| 20 | Cloning and developmental analysis of murid spermatid-specific thioredoxin-2 (SPTRX-2),a novel sperm fibrous sheath protein and autoantig显示文摘 | Antonio Miranda-Vizuete a b Katie Tsang c Yang Yu c Alberto Jime Markku Pelto-Huikko e f Charles J | 2003 | Biological Chemistry2003,278,44: | 1 |