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Development and application of a random walk model of atmospheric diffusion in the emergency response

CHI Bing, LI Hong, FANG Dong

Frontiers in Energy 2007, Volume 1, Issue 2,   Pages 195-201 doi: 10.1007/s11708-007-0025-7

Abstract: Random characteristics of atmospheric diffusion itself was described, a random walk model of atmosphericdiffusion (Random Walk) was introduced and compared with the Lagrangian puff model (RIMPUFF) in theThe random walk model for atmospheric diffusion can simulate the atmospheric diffusion in case of nuclearaccidents, and provide more actual information for early emergency and consequence assessment as one of the atmospheric

Keywords： RODOS     concentration prediction     information     nuclear     RIMPUFF    

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Spatial and Temporal Variations in the Atmospheric Age Distribution of Primary and Secondary Inorganic Article

Xiaodong Xie, Qi Ying, Hongliang Zhang, Jianlin Hu,

Engineering 2023, Volume 28, Issue 9,   Pages 117-129 doi: 10.1016/j.eng.2022.03.013

Abstract: ) components was conducted over China using an age-resolved Community Multiscale Air Quality (CMAQ) modelAged sulfate with atmospheric age > 48 h account for 30%–50% of total sulfate in most regionsnitric acid vapor combined with the faster chemical reaction rate of nitrogen oxides leads to a lower atmosphericThe age information of PM2.5, provided by the age-resolved CMAQ model, can help policymakers

Keywords： Atmospheric age     PM2.5     CMAQ model     Control strategy    

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Is atmospheric oxidation capacity better in indicating tropospheric O formation?

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 5, doi: 10.1007/s11783-022-1544-5

Abstract:

● This study summarizes and evaluates different approaches that indicate O3 formation.

Keywords： O3     AOC     O3 formation regime    

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Calculating Method for Area Source Model of Particulates

Gu Qing,Yang Xinxing,Li Yunsheng

Strategic Study of CAE 2005, Volume 7, Issue 1,   Pages 41-44

Abstract:

The area source model of particulates was deeply researched, and the places of the initial precipitationUsing the back set method of the virtual point source, and referring to the tilt smoke and cloud modelof the part reflex of the point source, the area source model of the particulates was fully given.

Keywords： atmospheric environment     particulate     area source model     calculating method    

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A new prediction method of industrial atmospheric pollutant emission intensity based on pollutant emission

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 1, doi: 10.1007/s11783-023-1608-1

Abstract:

● Established a quantification method of pollutant emission standard.

Keywords： Industrial atmospheric pollutants     Pollutant emission standards     Quantitative method     Machine learning    

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A review of atmospheric mercury emissions, pollution and control in China

Shuxiao WANG,Lei ZHANG,Long WANG,Qingru WU,Fengyang WANG,Jiming HAO

Frontiers of Environmental Science & Engineering 2014, Volume 8, Issue 5,   Pages 631-649 doi: 10.1007/s11783-014-0673-x

Abstract: The current state of atmospheric mercury emissions, pollution and control in China is comprehensivelyThe atmospheric mercury concentration in China is about 2–10 times the background level of North Hemisphere

Keywords： atmospheric mercury     emissions     pollution     control     China    

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Trend Analysis of Precipitation of Arid Areas In China

Gao Qingxian,Xu Ying,Ren Zhenhai

Strategic Study of CAE 2002, Volume 4, Issue 6,   Pages 36-43

Abstract: this paper, the historical precipitation data has been analyzed, the temporal spatial distribution of atmosphericChoosing 5 global climate change models recommended by IPCC, the atmospheric precipitation of China inFinally, the future trend of atmospheric precipitation in north and west of China is revealed and the

Keywords： atmospheric precipitation     climate change     climate model     water resources    

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The Chinese polar atmospheric sciences observation engineering system

Lu LongHua,Bian Lingen

Strategic Study of CAE 2012, Volume 14, Issue 9,   Pages 72-84

Abstract: Chinese polar atmospheric science observation system is gradually formed including the meteorological

Keywords： Antarctic     Arctic     atmospheric sciences     observation engineering    

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Variation characteristics of atmospheric methane and carbon dioxide in summertime at a coastal site in

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 11, doi: 10.1007/s11783-022-1574-z

Abstract:

● Diurnal patterns of CH4 and CO2 are clearly extracted using EEMD.

Keywords： Methane     Carbon dioxide     Diurnal pattern     Ensemble empirical mode decomposition     South China Sea     Sea breeze    

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Thermodynamic analysis of steam reforming of glycerol for hydrogen production at atmospheric pressure

Ammaru Ismaila, Xueli Chen, Xin Gao, Xiaolei Fan

Frontiers of Chemical Science and Engineering 2021, Volume 15, Issue 1,   Pages 60-71 doi: 10.1007/s11705-020-1975-0

Abstract: and CH in the gas phase and determination of the carbon free region in SRG under the conditions at atmosphericreaction conditions which favoured SRG for H production with minimum coke formation were identifies as: atmosphericThe influence of using the inert carrier gas (i.e., N ) in SRG was studied as well at atmospheric pressure

Keywords： steam reforming of glycerol     H2     N2     carbon deposition     thermodynamic analysis     Gibbs free energy minimisation    

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Temporal evolution of charged and neutral nanoparticle concentrations during atmospheric new particle

E. Rohan Jayaratne, Buddhi Pushpawela, Lidia Morawska

Frontiers of Environmental Science & Engineering 2016, Volume 10, Issue 5, doi: 10.1007/s11783-016-0862-x

Abstract: Over 100 new particle formation events were studied. In 50 events, charged and neutral particles were not formed at the same time. In 42 of these events the charged particles formed before the neutral particles. Their subsequent growth rates were not determined by the particle charge. The result suggests that ion induced nucleation plays a role in particle formation. Time series of nanoparticle number concentration during new particle formation (NPF) events in the urban environment of Brisbane, Australia, showed that the formation of charged particles often occurred before that of neutral particles. We monitored 241 days during the calendar year 2012 over which NPF events were observed on 108 days. We studied the times at which the charged and neutral particle concentrations in the size range 1.8–3.2 nm reached their peak values and found that they were clearly different in 50 events with the peak neutral particle concentration lagging behind the charged particle concentration during 42 of these events with a mean time lag of 24±12 min. While the charged particles were more likely to form before the neutral particles, once formed, the growth rate of the particles did not depend on their charge. While ion-induced nucleation is not the dominant mechanism of NPF in the atmosphere, our observations suggest that the presence of ions in the atmosphere plays a role that cannot be ignored.

Keywords： Charged particles     Cluster ions     Secondary particles     Environmental pollution    

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Genomic and metabolomic analysis of with enhanced poly--glutamic acid production through atmospheric

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 12,   Pages 1751-1760 doi: 10.1007/s11705-022-2211-x

Abstract: Atmospheric and room temperature plasma was applied in this study to conduct mutation breeding of

Keywords： ARTP mutagenesis     Bacillus licheniformis     poly-γ-glutamic acid     metabolomics    

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A 14-year measurement of toxic elements in atmospheric particulates in Hong Kong from 1995 to 2008

Wei NIE,Tao WANG,Aijun DING,Xuehua ZHOU,Wenxing WANG

Frontiers of Environmental Science & Engineering 2014, Volume 8, Issue 4,   Pages 553-560 doi: 10.1007/s11783-013-0523-2

Abstract: Toxic elements in the atmosphere can enter and accumulate in the human body, seriously impacting human health. In this study, we analyzed a 14-year (1995–2008) measurement of three toxic elements (As, Cd and Cr) in PM in Hong Kong, China. The pollution of these toxic elements in Hong Kong was not serious. The trend analysis showed that As and Cr in PM increased at a statistically significant level ( <0.05) during the 14-year period, while the Cd in PM did not change significantly. Typical seasonal variations were observed for all three toxic elements, largely in relation to the Asian monsoon. Hourly 10-day backward trajectories were computed and categorised into four groups. The continental air masses showed much higher concentrations of the three toxic elements than the marine air masses. The abundances of As and Cd in the PM were much higher in the continental air masses than those in the marine air masses, while the abundances of Cr showed an opposite pattern. The trends of the three toxic elements in East China’s air mass were consistent with those in the overall data set of Hong Kong. Examination of the toxic element data recorded at urban sites and a roadside site also indicated a large contribution of external air masses to particulate As and Cd in Hong Kong. These results suggest that the long-range transport from the mainland of China is the dominant contributor to particulate As and Cd, while both local and long-distance sources determine the particulate Cr in Hong Kong.

Keywords： toxic elements     increasing trends     seasonal variations     air masses     long-distance sources    

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Impact of “ultra low emission” technology of coal-fired power on PM

Xiao LIU, Zhilin LIU, Weidong JIAO, Xuan LI, Jintai LIN, Anthony KU

Frontiers in Energy 2021, Volume 15, Issue 1,   Pages 235-239 doi: 10.1007/s11708-017-0518-y

Abstract: Atmospheric modeling scenarios were analyzed for three cases: a “standard” scenario assuming no ULE deployment

Keywords： air quality     atmospheric model     coal     Jing-Jin-Ji Region     PM2.5     ultra-low emissions    

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Engineering Construction of Atmospheric Science

Wen Kegang,Li Huang,Li Zechun,Chen Xinqiang

Strategic Study of CAE 2000, Volume 2, Issue 5,   Pages 72-76

Abstract:

A brief account of the meaning of atmospheric science and its importance to human*s existence andAtmospheric science brings benefit to mankind through the development and use of atmospheric informationBasic thinking for the next three decades about atmospheric science engineering construction and someprojects to be constructed and some main measures are initially envisaged .Key projects include automatic atmospheric

Keywords： atmospheric science     engineering construction     review     idea    

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Title Author Date Type Operation

Development and application of a random walk model of atmospheric diffusion in the emergency response

CHI Bing, LI Hong, FANG Dong

Journal Article

Spatial and Temporal Variations in the Atmospheric Age Distribution of Primary and Secondary Inorganic

Xiaodong Xie, Qi Ying, Hongliang Zhang, Jianlin Hu,

Journal Article

Is atmospheric oxidation capacity better in indicating tropospheric O formation?

Journal Article

Calculating Method for Area Source Model of Particulates

Gu Qing,Yang Xinxing,Li Yunsheng

Journal Article

A new prediction method of industrial atmospheric pollutant emission intensity based on pollutant emission

Journal Article

A review of atmospheric mercury emissions, pollution and control in China

Shuxiao WANG,Lei ZHANG,Long WANG,Qingru WU,Fengyang WANG,Jiming HAO

Journal Article

Trend Analysis of Precipitation of Arid Areas In China

Gao Qingxian,Xu Ying,Ren Zhenhai

Journal Article

The Chinese polar atmospheric sciences observation engineering system

Lu LongHua,Bian Lingen

Journal Article

Variation characteristics of atmospheric methane and carbon dioxide in summertime at a coastal site in

Journal Article

Thermodynamic analysis of steam reforming of glycerol for hydrogen production at atmospheric pressure

Ammaru Ismaila, Xueli Chen, Xin Gao, Xiaolei Fan

Journal Article

Temporal evolution of charged and neutral nanoparticle concentrations during atmospheric new particle

E. Rohan Jayaratne, Buddhi Pushpawela, Lidia Morawska

Journal Article

Genomic and metabolomic analysis of with enhanced poly--glutamic acid production through atmospheric

Journal Article

A 14-year measurement of toxic elements in atmospheric particulates in Hong Kong from 1995 to 2008

Wei NIE,Tao WANG,Aijun DING,Xuehua ZHOU,Wenxing WANG

Journal Article

Impact of “ultra low emission” technology of coal-fired power on PM

Xiao LIU, Zhilin LIU, Weidong JIAO, Xuan LI, Jintai LIN, Anthony KU

Journal Article

Engineering Construction of Atmospheric Science

Wen Kegang,Li Huang,Li Zechun,Chen Xinqiang

Journal Article