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Single particle analysis of ambient aerosols in Shanghai during the World Exposition, 2010: two case studies

Shikang TAO, Xinning WANG, Hong CHEN, Xin YANG, Mei LI, Lei LI, Zhen ZHOU

Frontiers of Environmental Science & Engineering 2011, Volume 5, Issue 3,   Pages 391-401 doi: 10.1007/s11783-011-0355-x

Abstract: A TSI Model 3800 aerosol time-of-flight mass spectrometer (ATOFMS) was deployed for single-particle analysisMass spectra of 90496 and 50407 particles were analyzed respectively during the two sampling periods.biomass burning particles (43.3%) during polluted episode was much higher than that (21.6%) of clean timeMass spectrum analysis showed that chemical compositions and internal mixing states of almost all theparticle types were more complicate during polluted episode compared with those observed in clean time

Keywords： ambient aerosol     aerosol time-of-flight mass spectrometer     Shanghai     world exposition    

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Characterization of submicron aerosols in the urban outflow of the central Pearl River Delta region of China

Zhaoheng GONG, Zijuan LAN, Lian XUE, Liwu ZENG, Lingyan HE, Xiaofeng HUANG

Frontiers of Environmental Science & Engineering 2012, Volume 6, Issue 5,   Pages 725-733 doi: 10.1007/s11783-012-0441-8

Abstract: Submicron aerosol particles (with aerodynamic diameters less than 1 μm, PM ) were sampled and measuredoutflow site of Guangzhou megacity in Pearl River Delta in South China, using an Aerodyne High-Resolution Time-of-FlightAerosol Mass Spectrometer (HR-ToF-AMS) in November 2010 during 2010 Guangzhou Asian Games.The mean PM mass concentration measured was 47.9±17.0 μg·m during the campaign, with organic aerosolThe average ratio of organic mass over organic carbon mass (OM/OC) was 1.73±0.08.

Keywords： organic aerosol     high-resolution time-of-flight aerosol mass spectrometer (HR-ToF-AMS)     positive matrix    

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Determination of persistent organic pollutants by gas chromatography/laser multiphoton ionization/time-of-flightmass spectrometry

Osamu SHITAMICHI, Taiki MATSUI, Yamei HUI, Weiwei CHEN, Totaro IMASAKA

Frontiers of Environmental Science & Engineering 2012, Volume 6, Issue 1,   Pages 26-31 doi: 10.1007/s11783-011-0374-7

Abstract: 2 fold in comparison with those obtained using a conventional capillary column, since the retention timewas reduced and the amount of analytes introduced into the mass spectrometer per unit time could beAs demonstrated, a technique involving laser multiphoton ionization/time-of-flight mass spectrometry

Keywords： polychlorinated biphenyls (PCBs)     polycyclic aromatic hydrocarbons (PAHs)     laser multiphoton ionization/time-of-flightmass spectrometry (MPI/TOF-MS)    

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Transient imaging with a time-of-flight cameraand its applications

Jing-yu LIN, Ri-hui WU, Hong-man WANG, Ye-bin LIU

Frontiers of Information Technology & Electronic Engineering 2017, Volume 18, Issue 9,   Pages 1268-1276 doi: .org/10.1631/FITEE.1700556

Abstract: In thisreview we introduce three main models for transient imaging with atime-of-flight (ToF) camera:

Keywords： Transient imaging     Time-of-flight(ToF) camera     Scattering media     Around corners    

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Transient imaging with a time-of-flight camera and its applications

Jing-yu Lin, Ri-hui Wu, Hong-man Wang, Ye-bin Liu,jylin@gxu.edu.cn,liuyebin@tsinghua.edu.cn

Frontiers of Information Technology & Electronic Engineering 2017, Volume 18, Issue 9,   Pages 1268-1276 doi: 10.1631/FITEE.1700556

Abstract: is a technique in photography that records the process of light propagation before it reaches a stationary state such that events at the light speed level can be observed. In this review we introduce three main models for with a : correlation model, frequency-domain model, and compressive sensing model. applications usually involve resolving the problem of light transport and separating the light rays arriving along different paths. We discuss two of the applications: imaging objects inside and recovering both the shape and texture of an object around a corner.

Keywords： Transient imaging     Time-of-flight (ToF) camera     Scattering media     Around corners    

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Identify the contribution of vehicle non-exhaust emissions: a single particle aerosol mass spectrometer

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 5, doi: 10.1007/s11783-023-1662-8

Abstract:

● A single particle observation was conducted in a high traffic flow road environment.

Keywords： Non-exhaust emissions     SPAMS     PMF     Roadside environment    

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Time of flight improved thermally grown oxide thickness measurement with terahertz spectroscopy

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 4, doi: 10.1007/s11465-022-0705-3

Abstract: As a nondestructive testing technique, terahertz time-domain spectroscopy technology is commonly usedTo detect and monitor TGO in the emergence stage, a time of flight (TOF) improved TGO thickness measurement

Keywords： thermal barrier coatings     thermally grown oxide     terahertz spectroscopy     time of flight    

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Characteristics of mass distributions of aerosol particle and its inorganic water-soluble ions in summer

ZHAO Peng, ZHU Tong, LIANG Baosheng, HU Min, KANG Ling, GONG Jicheng

Frontiers of Environmental Science & Engineering 2007, Volume 1, Issue 2,   Pages 159-165 doi: 10.1007/s11783-007-0028-y

Abstract: Agricultural activity is one of the most important sources of aerosol particles.To understand the mass distribution and sources of aerosol particles and their inorganic water-solubleThe results show that fertilizer and soil are important factors determining the aerosol particle overagricultural fields, and vegetable fields in suburban Beijing contribute significantly to the aerosol

Keywords： diameter     atmosphere     suburban     contribute     agricultural    

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Modeling radiative effects of haze on summer-time convective precipitation over North China: a case study

Xuying WANG, Bin ZHANG

Frontiers of Environmental Science & Engineering 2016, Volume 10, Issue 4, doi: 10.1007/s11783-016-0840-3

Abstract: using WRF model (version 3.3) through model sensitivity studies between scenarios with and without aerosolThe haze radiative effect was represented by incorporating an idealized aerosol optical profile, withWe found that the shortwave heating induced by aerosol radiative effects would significantly reduce heavy

Keywords： Haze     Aerosol radiative effects     Convective precipitation    

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Review on the applications of Tropospheric Emissions Spectrometer to air-quality research: Perspectives

Yuxuan WANG, Yuqiang ZHANG, Jiming HAO,

Frontiers of Environmental Science & Engineering 2010, Volume 4, Issue 1,   Pages 12-19 doi: 10.1007/s11783-010-0012-9

Abstract: The Tropospheric Emissions Spectrometer (TES) aboard the National Aeronautics and Space Administration

Keywords： Tropospheric Emissions Spectrometer (TES)     ozone     carbon monoxide     China    

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Air bearing center cross gap of neutron stress spectrometer sample table support system

Yang LI,Yunxin WU,Hai GONG,Xiaolei FENG

Frontiers of Mechanical Engineering 2016, Volume 11, Issue 4,   Pages 403-411 doi: 10.1007/s11465-016-0405-y

Abstract:

A support system is the main load-bearing component of sample table for neutron stress spectrometerThe neutron stress spectrometer sample table was introduced, and the scheme for air bearing combination

Keywords： neutron stress spectrometer     sample table     support system     air bearing     center cross gap     simulation     experiment    

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Multi-time scale dynamics in power electronics-dominated power systems

Xiaoming YUAN, Jiabing HU, Shijie CHENG

Frontiers of Mechanical Engineering 2017, Volume 12, Issue 3,   Pages 303-311 doi: 10.1007/s11465-017-0428-z

Abstract:

Electric power infrastructure has recently undergone a comprehensive transformation from electromagnetics to semiconductors. Such a development is attributed to the rapid growth of power electronic converter applications in the load side to realize energy conservation and on the supply side for renewable generations and power transmissions using high voltage direct current transmission. This transformation has altered the fundamental mechanism of power system dynamics, which demands the establishment of a new theory for power system control and protection. This paper presents thoughts on a theoretical framework for the coming semiconducting power systems.

Keywords： power electronics     power systems     multi-time scale dynamics     mass-spring-damping model     self-stabilizingand en-stabilizing property     multi-time scale power system stabilizer    

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Studies on the liquid-liquid interfacial mass transfer process using holographic interferometry

ZHAO Chaofan, ZHU Chunying, MA Youguang

Frontiers of Chemical Science and Engineering 2008, Volume 2, Issue 1,   Pages 1-4 doi: 10.1007/s11705-008-0006-3

Abstract: This paper aims at the interfacial phenomena of liquid-liquid mass transfer and its characteristic.By using the real-time holographic technique, the concentration distributions on the aqueous side wereobtained according to holographic diagrams of mass transfer of ethanol through the interface of oilFurthermore, the concentrations near the interface and the mass transfer coefficients were attained.It is indicated that the liquid-liquid mass transfer process is approximately in accordance with two-film

Keywords： liquid-liquid     different     real-time holographic     addition     transfer    

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Physical and chemical processes of wintertime secondary nitrate aerosol formation

Qi YING

Frontiers of Environmental Science & Engineering 2011, Volume 5, Issue 3,   Pages 348-361 doi: 10.1007/s11783-011-0343-1

Abstract: analysis (PA) scheme for gas and particulate matter (PM) to study the formation of secondary nitrate aerosol

Keywords： secondary nitrate aerosol     N2O5 heterogeneous reaction     process analysis    

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Computational fluid dynamics simulation of aerosol transport and deposition

Yingjie TANG, Bing GUO

Frontiers of Environmental Science & Engineering 2011, Volume 5, Issue 3,   Pages 362-377 doi: 10.1007/s11783-011-0365-8

Abstract: In this article computational fluid dynamics (CFD) simulation of aerosol transport and deposition, i.e. the transport and deposition of particles in an aerosol, is reviewed.The review gives a brief account of the basics of aerosol mechanics, followed by a description of theincluding CFD simulation of particle deposition in human respiratory tract and particle deposition in aerosolHowever, it is possible to take a balanced approach toward quantitative description of aerosol dispersion

Keywords： computational fluid dynamics (CFD)     aerosol     transport     deposition    

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Title Author Date Type Operation

Single particle analysis of ambient aerosols in Shanghai during the World Exposition, 2010: two case studies

Shikang TAO, Xinning WANG, Hong CHEN, Xin YANG, Mei LI, Lei LI, Zhen ZHOU

Journal Article

Characterization of submicron aerosols in the urban outflow of the central Pearl River Delta region of China

Zhaoheng GONG, Zijuan LAN, Lian XUE, Liwu ZENG, Lingyan HE, Xiaofeng HUANG

Journal Article

Determination of persistent organic pollutants by gas chromatography/laser multiphoton ionization/time-of-flightmass spectrometry

Osamu SHITAMICHI, Taiki MATSUI, Yamei HUI, Weiwei CHEN, Totaro IMASAKA

Journal Article

Transient imaging with a time-of-flight cameraand its applications

Jing-yu LIN, Ri-hui WU, Hong-man WANG, Ye-bin LIU

Journal Article

Transient imaging with a time-of-flight camera and its applications

Jing-yu Lin, Ri-hui Wu, Hong-man Wang, Ye-bin Liu,jylin@gxu.edu.cn,liuyebin@tsinghua.edu.cn

Journal Article

Identify the contribution of vehicle non-exhaust emissions: a single particle aerosol mass spectrometer

Journal Article

Time of flight improved thermally grown oxide thickness measurement with terahertz spectroscopy

Journal Article

Characteristics of mass distributions of aerosol particle and its inorganic water-soluble ions in summer

ZHAO Peng, ZHU Tong, LIANG Baosheng, HU Min, KANG Ling, GONG Jicheng

Journal Article

Modeling radiative effects of haze on summer-time convective precipitation over North China: a case study

Xuying WANG, Bin ZHANG

Journal Article

Review on the applications of Tropospheric Emissions Spectrometer to air-quality research: Perspectives

Yuxuan WANG, Yuqiang ZHANG, Jiming HAO,

Journal Article

Air bearing center cross gap of neutron stress spectrometer sample table support system

Yang LI,Yunxin WU,Hai GONG,Xiaolei FENG

Journal Article

Multi-time scale dynamics in power electronics-dominated power systems

Xiaoming YUAN, Jiabing HU, Shijie CHENG

Journal Article

Studies on the liquid-liquid interfacial mass transfer process using holographic interferometry

ZHAO Chaofan, ZHU Chunying, MA Youguang

Journal Article

Physical and chemical processes of wintertime secondary nitrate aerosol formation

Qi YING

Journal Article

Computational fluid dynamics simulation of aerosol transport and deposition

Yingjie TANG, Bing GUO

Journal Article