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| 1 | PM_(2.5) and PM_(10-2.5) chemical composition and source apportionment near a Hong Kong roadway显示文摘Twenty-four-hour PM_(2.5) and PM_(10) samples were collected simultaneously at a highly trafficked roadside site in Hong Kong every sixth day from October 2004 to September 2005.The mass concentrations of PM_(2.5),PM_(10-2.5)(defined as PM_(10)- PM_(2.5)),organic carbon(OC),elemental carbon(EC),water-soluble ions,and up to 25 elements were determined.Investigation of the chemical compositions and potential sources revealed distinct differences between PM_(2.5) and PM_(10-2.5).The annual average mass concentrations were 55.5±25.5 and 25.9±15.7 ug/m^3 for PM_(2.5) and PM_(10-2.5),respectively.EC,OM(OM =OC×1.4),and ammonium sulfate comprised over ~82% of PM_(2.5),accounting for^29%,~27%,and ~25%,respectively,of the PM_(2.5) mass.Low OC/EC ratios(less than 1) for PM_(2.5) suggested that fresh diesel-engine exhaust was a major contributor.Seven sources were resolved for PM_(2.5) by positive matrix factorization(PMF) model,including vehicle emissions(~29%),secondary inorganic aerosols(~27%),waste incinerator/biomass burning(~23%),residual oil combustion(~10%),marine aerosols(~6%),industrial exhaust(~4%),and resuspended road dust(~1%).EC and OM comprised only ~19%of PM_(10-2.5).The average OC/EC ratio of PM_(10-2.5) was 7.8±14.2,suggesting that sources other than vehicular exhaust were important contributors.The sources for PM_(10-2.5) determined by the PMF model included ~20%traffic-generated resuspension(e.g.,tire dust/brake linear/petrol evaporation),~17% locally resuspended road dust,~17% marine aerosols,~12% secondary aerosols/field burning,and ~11%vehicle emissions. | Yan Cheng Shuncheng Lee Zhaolin Gu Kinfai Ho Yunwei Zhang Yu Huang Judith C.Chow John G.Watson Junji Cao Renjian Zhang | 2015 | Particuology2015，13，1： | 14 |
| 2 | Speciated mercury in size-fractionated particles in Shanghai ambient air显示文摘 | Guangli Xiu Ji Cai Wenying Zhang Danian Zhang Andreas Büeler Shuncheng Lee Yan Shen Lihang Xu Xuejuan Huang Ping Zhang | 2008 | Atmospheric Environment2008，，19： | 1 |
| 3 | Improving accuracy for 3D RFID localization 显示文摘 | Han Jinsong Zhao Yiyang Yan Shuncheng | 2012 | International Journal of Distributed Sensor Network2012，，： | 1 |
| 4 | UML-based full function point measurement method显示文摘 | JI Chunlei YAN Shuncheng | 2012 | Applied Mechanics and Materials2012，，11： | 1 |
| 5 | Face recognition using Laplacianfaces显示文摘 | He Xiaofe Yan Shuncheng Hu Yuxia | | 0，，03： | 1 |
| 6 | Metformin capped Cu_(2)(OH)_(3)Cl nanosheets for chemodynamic wound disinfection显示文摘Recently,the development of chemodynamic therapy(CDT)offers a potential approach for fighting bacteria and treating infectious diseases,in which those CDT nanoagents can catalyze the generation of hydroxyl radicals(·OH)to destroy bacteria.In this work,to improve the efficiency of CDT,we have designed a new kind of metformin(Met)-capped two-dimensional Cu_(2)(OH)_(3)Cl nanosheets(CuOHCl-Met NSs)with good monodispersity,highly positive charge,and good biocompatibility for improving antibacterial effect and accelerating wound healing.With the capped Met,CuOHCl-Met NSs can effectively kill bacteria under a low concentration(6μg·mL^(−1))and a short treatment time(in 15 min),showing great advantages over the counterpart without Met.In vivo results demonstrated that CuOHCl-Met NSs accelerated the tissue regeneration of staphylococcus aureus-infected dermal wounds.This study provides a new pathway for improving efficiency of CDT nanoagent through using old drug. | Xueyu Wang Shaobo Wang Jiao Gao Shuncheng Yao Teng Xu Yunchao Zhao Zeyu Zhang Tian Huang Shu Yan Linlin Li | 2023 | Nano Research2023，16，3： | 0 |
| 7 | Momentum Image of Emission Electrons in Transfer Ionization Processes of Slow He2+Colliding on Helium显示文摘 | Feng Wentian Ma Xinwen Zhu Xiaolong Zhang Shaofen Liu Huiping Li Bin Yan Shuncheng | 2009 | 近代物理研究所和兰州重离子加速器实验室年报:英文版2009，，1： | 0 |
| 8 | Atomic Physics—State-selective Single Electron Capture by O3d- Ions on He and H2显示文摘 | Zhu Xiaolong Ma Xinwen Zhang Shaofeng Feng Wentian Liu Huiping Qian Dongbin Zhang Daeheng Li Bin Wen Weiqiang Zhang Pengju Yan Shuncheng Wang Qian Guo Dalong | 2011 | IMP & HIRFL Annual Report2011，，1： | 0 |
| 9 | Signatures of Projectile Electron-target-core Elastic Scattering in CH4, CO2, and Ne(e, 2e) Reactions at an Impact Energy of 144 eV显示文摘 | Zhang Pengju Ma Xinwen Yan Shuncheng Xu Shenyue | 2011 | IMP & HIRFL Annual Report2011，，1： | 0 |
| 10 | Image of Electron Emission in p-He Collisions at Intermediate Energies显示文摘 | Feng Wentian Ma Xinwen Zhu Xiaolong Zhang Shaofeng Liu Huiping Li Bin Yan Shuncheng Zhang Ruitian Wang Qian Guo Dalong | 2011 | IMP & HIRFL Annual Report2011，，1： | 0 |
| 11 | Electron Capture to Continuum of Transfer Ionization in 30 keV/u He2+ on Argon Collision显示文摘 | Zhang Ruitian Ma Xinwen Zhang Shaofen Zhu Xiaolong Feng Wentian Guo Dalong Li Bin Liu Huiping Wang Jianguo Yan Shuncheng Zhang Pengju Wang Qian | 2011 | IMP & HIRFL Annual Report2011，，1： | 0 |
| 12 | 4-6 Measurement of the Ratio of C3+ and O4+ Ions Produced by ECR Source to Prepare a Laser Cooling Experiment at Storage Rings显示文摘The cooling of heavy ions can provide high-quality beams that are especially important for high-precisionexperimental nuclear and atomic physics. The laser cooling of relativistic C3+ ion beams at the experimental coolerstorage ring (CSRe) is being currently prepared at Institute of Modern Physics (IMP) in Lanzhou. An electroncyclotron resonance ion source (ECRIS) will be used to produce C3+ ion beams. Meanwhile, O4+ ions could alsobe produced due to residual gas because of the same mass-to-charge ratio. Therefore, both C3+ and O4+ ion beamswill be injected and circulate in a storage ring during the laser cooling experiment at the same time. A higher ratioof C3+ ions will lead to a better result for the laser cooling experiment. | Zhu Xiaolong Wen Weiqiang Ma Xinwen Li Jinyu Feng Wentian Zhang Ruitian Yan Shuncheng Guo Dalong Hai Bang Qian Dongbin Zhang Pengju Xu Shenyue Zhao Dongmei Yang Jie Zhang Dacheng Li Bin Gao Yong Huang Zhongkui Wang Hanbing | 2014 | IMP & HIRFL Annual Report2014，，1： | 0 |
| 13 | 4-11 Nucleus-nucleus Interactions in Transfer Ionization of He2+ -He Collisions显示文摘The transfer ionization of atom by ion impact offers a very suitable test ground of quantum many-body problem[1],because the final state involves three particles (the projectile, the emitted electron and the recoil ion). The experimentaltechniques are available to perform kinematically complete measurements on these processes now.The experiment was performed using a reaction microscope at the Institute of Modern Physics, CAS[2]. Thedata was analyzed in terms of Dalitz spectrum which is presented in Fig. 1. In this figure, the Dalitz plot is | Feng Wentian Ma Xinwen Zhu Xiaolong Yan Shuncheng Zhang Ruitian Guo Dalong Gao Yong | 2014 | IMP & HIRFL Annual Report2014，，1： | 0 |
| 14 | 4-14 Observation of Double Scattering of Relatively High-energy Electrons in He2+-argon Collisions显示文摘We have investigated the single capture with simultaneous single ionization in He2+ collisions with argon bymeans of reaction microscopes[1]. Here, we report the dependence of the azimuth angle (φe) of the relatively high-energy electrons (kinetic energy > 20 eV) on the transversal recoil momentum (pr⊥) in single capture with doubleionization process for 30 keV/u He2+ collisions with Ar. It is noted that the relatively high-energy electrons mainlyresult from binary encounter (BE) between the target electrons and the projectiles for the present reaction channel. | Gao Yong Ma Xinwen Zhu Xiaolong Feng Wentian Zhang Ruitian Guo Dalong Yan Shuncheng Zhao Dongmei | 2014 | IMP & HIRFL Annual Report2014，，1： | 0 |
| 15 | 4-15 Electron Emission in the Transfer Ionization Process of Intermediate Multi-charged Ion - He Collisions显示文摘The momentum projecting techniques have been well applied so as to explore the mechanisms of electronemissions as well as the dynamical effects which influenced the momentum distribution of the electrons ionized inion-atom collisions[1??3]. Usually, the emitted electrons will be projected onto the scattering plane, which was definedas the plane containing the initial and the final momentum vectors of the projectile, considering the conservationlaws and rotational symmetry around the beam axis. It is well known that the ejected electrons will be influencedsimultaneously by a combined coulomb potential from the recoil ions and the projectile ions. Qualitatively, this | Zhang Ruitian Feng Wentian Zhu Xiaolong Guo Dalong Gao Yong Qian Dongbin Li Bin Yan Shuncheng Xu Shenyue Zhang Pengju Ma Xinwen | 2014 | IMP & HIRFL Annual Report2014，，1： | 0 |
| 16 | 4-16 Triple Coincidence (e, γ2e) Experiment for Ionization-excitation of Helium*显示文摘Electron induced ionization-excitation (IE) of helium is a basic four-body Coulomb problem in which all thefour charged particles are actively involved. It is much more challenging to both experiment and theory in contrastto direct ionization with the residual He+ ion in the ground state. The 2s or 2p separated TDCS data, especially atlow incident energy range where the high order effects are expected to play a significant role, would offer the moststringent test to theoretical models. However, only one experiment at high incident energy achieved the TDCSs for2p state till now due to the small cross section and the low detection efficiency for multi-coincidence events[1]. | Xu Shenyue Ma Xinwen Zhao Qiushuang Yan Shuncheng Zhang Pengju Zhu Xiaolong Yang Jie Feng Wentian Zhao Dongmei Zhang Shaofeng Zhang Dacheng Qian Dongbing | 2014 | IMP & HIRFL Annual Report2014，，1： | 0 |
| 17 | 4-17 Sequential and Nonsequential Dissociation of (CO2)3+ by Heavy Ion Impact显示文摘We performed the CO2 fragmentation experiment in Reaction Microscope, aiming to distinguish the variousdissociation mechanisms of (CO2)3+ions. By coincidently detecting the C+/O+/O+ ions, the Newton plot representingthe momentum relation among the three ions[1], as well as the Kinetic Energy Release (KER) distributionof sequential dissociation (which is the sum of the kinetic energies of all fragment ions), are obtained.As displayed in Fig. 1, there are two parts in Newton plot, the bright areas represent the C+ ion taking smallkinetic energy and two O+ ions flying back to back approximately. | Yan Shuncheng Zhu Xiaolong Li Bin Ma Xinwen | 2014 | IMP & HIRFL Annual Report2014，，1： | 0 |
| 18 | Ne^(8+)重离子碰撞氩二聚体碎裂中的取向效应研究显示文摘The experiment was carried out using the Reaction Microscope mounted at the 320 kV platform for multidisciplinary research with highly charged ions at the Institute of Modern Physics,CAS[1,2].For reaction channel of(Ar2)^(2+)→Ar^(+)+Ar^(+),the kinetic energy release(KER)distribution clearly shows two peaks.The left peak locates at 3.7 eV approximately,and the right one lies at about 5.3 eV.From the classical reflection approximation KER/(Z1-Z2)=R,the internuclear distance R can be deduced.We find that the corresponding internuclear distance of the left peak is 3.8˚A,which is the equilibrium internuclear distance of the Ar2 dimer.This indicates that coulomb explosion takes place immediately after the double ionization process,without the involvement of the geometry change of the cluster ion.Therefore,the left peak dominantly arises from two-site double ionization. | Zhu Xiaolong Yan Shuncheng Feng Wentian Ma Xinwen Chuai Xiaoya Guo Dalong Gao Yong Zhang Ruitian Zhang Pengju Zhang Shaofeng Zhao Dongmei Xu Shenyue Wang Hanbing Huang Zhongkui Qian Dongbin | 2018 | IMP & HIRFL Annual Report2018，，1： | 0 |
| 19 | 4 - 3 New Dissociation Mechanism Induced by Third Atom in Fragmentation of Ar Trimer Ion显示文摘 | Yan Shuncheng Zhang Pengju Xu Shenyue Li Bin Ma Xinwen | 2013 | IMP & HIRFL Annual Report2013，，1： | 0 |
| 20 | 4 - 7 Experimental Investigation of Ejected Electron Azimuth Angle in 30 keV/u He2+ on Argon Collisions显示文摘 | Gao Yong Ma Xin wen Zhu Xiaolong Feng Wentian Zhang Ruitian Guo Dalong Li Bin Wen Weiqiang Yan Shuncheng Xu Shenyue Zhang Pengju Qian Dongbin Zhao Dongmei | 2013 | IMP & HIRFL Annual Report2013，，1： | 0 |
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