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| 1 | Chemical characteristics of haze particles in Xi'an during Chinese Spring Festival: Impact of fireworks burning显示文摘Fireworks burning releases massive fine particles and gaseous pollutants, significantly deteriorating air quality during Chinese Lunar New Year(LNY) period. To investigate the impact of the fireworks burning on the atmospheric aerosol chemistry, 1-hr time resolution of PM_(2.5) samples in Xi'an during the winter of 2016 including the LNY were collected and detected for inorganic ions, acidity and liquid water content(LWC) of the fine aerosols. PM_(2.5) during the LNY was 167 ± 87 μg/m^3, two times higher than the China National Ambient Air Quality Standard(75 μg/m^3). K^+(28 wt.% of the total ion mass) was the most abundant ion in the LNY period, followed by SO_4^(2-)(25 wt.%) and Cl-(18 wt.%). In contrast, NO_3^-(34 wt.%) was the most abundant species in the haze periods(hourly PM32-2.5> 75 μg/m), followed by SO_4(29.2 wt.%) and NH_4^+(16.3 wt.%), while SO_4^(2-)(35 wt.%) was the most abundant species in the clean periods(hourly PM_(2.5)< 75 μg/m^3), followed by NO_3^-(23.1 wt.%) and NH_4^+(11 wt.%). Being different from the acidic nature in the non-LNY periods, aerosol in the LNY period presented an alkaline nature with a pH value of 7.8 ± 1.3. LWC during the LNY period showed a robust linear correlation with K_2SO_4 and KCl, suggesting that aerosol hygroscopicity was dominated by inorganic salts derived from fireworks burning. Analysis of correlations between the ratios of NO--3/SO_4^(2-) and NH_4^+/SO_4^(2-) indicated that heterogeneous reaction of HNO_3 with NH_3 was an important formation pathway of particulate nitrate and ammonium during the LNY period. | Can Wu Gehui Wang Jiayuan Wang Jianjun Li Yanqin Ren Lu Zhang Cong Cao Jin Li Shuagshuang Ge Yuning Xie Xinpei Wang Guoyan Xue | 2018 | Journal of Environmental Sciences2018，30，9： | 10 |
| 2 | A non‐equal gap distance dielectric barrier discharge:Between cone‐shape and cylinder‐shape electrodes显示文摘A non‐equal gap distance dielectric barrier discharge(DBD)between cone‐shape and a cylinder‐shaped electrodes is reported.The DBD is driven by a nanosecond voltage pulse.When the pulse frequency is 500 Hz or lower,ladder‐shape plasma with multiple plasma layers is generated within the gap,with a distance increasing from 1 to 7 mm.According to high‐speed photographs of the plasma captured by an intensified charge‐coupled camera detector camera,the ladder‐shaped plasma is formed owing to propa-gation of ring‐shaped plasma from the region of the short‐gap distance to the region of long‐gap distance with regular variations in its propagation speed.The propagation speed drops to zero and lasts for about 20-30 ns at the region of each plasma layer,which results in bright plasma layers.The electric field of the plasma layer at the region of the different gap distance is evaluated according to the optical emission intensity ratio R_(391)/_(394)of N_(2)^(+)at 391 nm and N_(2) at 394 nm.The obtained electric field drops from 8.1 to 6.4 kV/mm when the plasma is propagated from regions of gap distance of 2-5 mm.When the pulse frequency is increased to 1 kHz or higher,the discharge changes into a filamentary mode and the multiple‐layer plasma disappears. | Shaohui Jin Zhiyu Li Yubin Xian Lanlan Nie Xinpei Lu | 2022 | High Voltage2022，7，1： | 2 |
| 3 | On the charged aerosols generated by atmospheric pressure non‐equilibrium plasma显示文摘Recently,charged aerosols are used widely in many applications,such as fog elimination,inactivation of airborne viruses and so on.Atmospheric pressure non‐equilibrium plasma(APNP)have become an efficient way to generate charged aerosols.Except the traditional pin‐plate or wire‐plate APNP sources,the new APNP sources such as large scale corona discharge system and air plasma jet array are introduced.These sources can increase the ion density in open air and generate adjustable large plasma plume,which are helpful in increasing the charging efficiency on aerosols.Although the interactions between plasma and aerosols is quite complicated,the preliminary study suggests that the diffusion charging dominates aerosols below 0.1μm,field charging dominates aerosols larger than 1μm,and the photo charging also contributes to aerosols charging.These reactive charged aerosols have shown their potential in the artificial rain enhancement,biomedicine,and ma-terial processing.Finally,challenges and opportunities for theoretical,experimental,and application research in related cross‐disciplinary areas are presented to stimulate critical discussions and collaborations in the future. | Yanzhe Zhang He Cheng Haotian Gao Dawei Liu Xinpei Lu | 2021 | High Voltage2021，6，3： | 1 |
| 4 | Effect of nano- to millisecond pulse on dielectric barrier discharges 显示文摘 | Lu Xinpei Xiong Qing Xiong Zilan | 2009 | IEEE Transactions on Plasma Science2009，37，5： | 1 |
| 5 | Spark model of pulsed discharge in water 显示文摘 | LU Xinpei PAN Yuan LIU Kefu | 2002 | Journal of Applied Physics2002，91，1： | 1 |
| 6 | The roles of the various plasma agents in the inactivation of bacteria显示文摘 | Lu Xinpei Ye Tao Cao Yingguang | | 0，，： | 1 |
| 7 | Inactivation of bacteria by the plasma pencil显示文摘 | Laroussi M Tendero C Lu Xinpei | 2006 | Plasma Processes and Polymers2006，3，67： | 1 |
| 8 | Ionization waves in nanosecond pulsed atmospheric pressure plasma jets in argon显示文摘Typical ionization waves(IWs)are observed during the propagation of nanosecond pulsed atmospheric pressure plasma jets(APPJs)with argon flow,combining both the measurement of the axial electric field(Ez)and the temporal resolved optical imaging.The movement of the luminous APPJ head is recognized as the development of the IW front,accompanied with the propagation of the peak electric field.Especially,the radial distribution of Ez transits from a central peak profile before the IW front arrives to a hollow profile after the pass of the IW front.As for the temporal Ez trend,there is a mode transition from the single-peak feature under a low peak voltage to the double-peak feature under a higher peak voltage,indicating the existence of both primary and secondary IWs.The effect of target conditions on the IWs in APPJs is also explored.With a metal target,no residual electric field is observed before imposing the high-voltage pulses.However,with a dielectric target,the residual surface charges generate a back-ground electric field in the opposite direction to that during IW propagation.In the free APPJ(with no target),on the voltage falling edge,a negative electric field drives the electron flow to compensate the positive ions left over during the forward IW propa-gation on the voltage rising edge. | Bangdou Huang Cheng Zhang Wenchao Zhu Xinpei Lu Tao Shao | 2021 | High Voltage2021，6，4： | 1 |
| 9 | An RC plasma de- vice for sterilization of root canal of teeth 显示文摘 | Lu Xinpei Cao Yinguang Yang Ping | 2009 | IEEE Transac- tions on Plasma Science2009，37，5： | 1 |
| 10 | Experimental study on the influence of H_(2)O vapor and O_(2)for desulfurization and denitrification of the diesel exhaust in marine application by non‐thermal plasma显示文摘To improve the pollutant removal efficiency by non‐thermal plasma(NTP),the effect of H2O vapor and O_(2)on removal efficiency of NO and SO_(2)as well as the reduction of CO was investigated in H_(2)O/O_(2)/SO_(2)/NO/C_(3)H_(6)/CO_(2)/N_(2)system.To analyse the reaction mechanism,the effects of H2O vapor and O2 on the emission intensity of Oð3p^(5)P→3s^(5)S0_(2)Þand OHðA^(2)Σþ→X^(2)ΠÞwere investigated.The experimental results show that the increase of H_(2)O vapour(0%-9.8%)promotes the generation of OH radicals,increases the removal efficiency of NO from 18.9%to 57.3%,decreases the energy per NO removed from 449.0 to 148.1 eV/NO,increases SO_(2)removal efficiency from 4.8%to 35.3%,decreases the energy per SO_(2)removed decreases from 2784.0 to 582.9 eV/SO_(2),and reduces the generation of CO from 460 to 229 ppm.In the range of 0%-15%,the increase of O_(2)content promotes the formation of O radicals,increases the removal efficiency of NO from 8.5%to 54.2%,and decreases the energy per NO removed from 994.3 to 156.4 eV/NO.In the range of 0%-5%,increasing O_(2)content promotes SO_(2)removal efficiency from 8.7%to 24.8%,and decreases the energy per SO_(2)removed from 2485.7 to 876.6 eV/SO_(2).However,CO generation increases from 200 to 350 ppm with the increase of O_(2)in 0%-5%due to the incomplete oxidation of C_(3)H_(6).In the range of 5%-15%,the increase of O2 produces more O radicals,decreases the removal efficiency of SO_(2)from 24.8%to 23.5%and the generates of CO from 350 to 311 ppm.This study is helpful for improving the efficiency of NTP for desulfurization and denitrification,while reducing the by‐product CO. | Yunkai Cai Lin Lv Xinpei Lu | 2021 | High Voltage2021，6，6： | 1 |
| 11 | Spark model of pulsed discharge in water显示文摘 | Lu Xinpei Pan Yuan Liu Kefu | 2002 | JAP2002，91，1： | 1 |
| 12 | Spark model of pulsed discharge in water显示文摘 | Xinpei Lu Yuan Pan Kefu Liu | 2002 | Journal of AP2002，91，1： | 1 |
| 13 | Measurements of the propagation velocity of an atmospheric pressure plasma plumeby various methods 显示文摘 | Zilan Xiong Xinpei Lu Qing Xiong | 2010 | IEEE Transactions on Plasma Science2010，38，4： | 1 |
| 14 | Propagation of atmospheric-pressure cold plasma jets显示文摘 | X1AN Yubin LU Xinpei | 2012 | High Voltage Engineering2012，38，7： | 1 |
| 15 | Dynamics of an atmospheric pressure plasma plume generated by submicrosecond voltage pulses显示文摘 | Lu XinPei Laroussi Mounir | 2006 | J Appl Phys2006，100，06： | 1 |
| 16 | Dynamics of an atmospheric pressure plasma plume generated by submicrosecond voltage pulses显示文摘 | Lu XinPei Mounir Laroussi | 2006 | J Appl Phys2006，100，06： | 1 |
| 17 | Propagation of atmospheric-pressure cold plasma jets显示文摘 | XIAN Yubin LU Xinpei | 2012 | High Voltage Engineering2012，38，7： | 1 |
| 18 | Propagation of atmospheric pressure cold plasma jets显示文摘 | XIAN Yubin LU Xinpei | 2012 | High Voltage Engineering2012，38，7： | 1 |
| 19 | Numerical study on propagation mechanism and bio-medicine applications of plasma jet显示文摘In this study,the propagation mechanism of plasma jet and some bio-medical applications are investigated by two-dimensional numerical model.The key equations of plasma physics and chemistry related with plasma jet are firstly introduced.The simulation results suggest that the sheath forms near the dielectric tube inner surface,which results in the plasma channel to shrink in the radial direction inside the dielectric tube.The photoionisation of air species plays a crucial role in the transition from the localised discharge to streamer.The Penning ionisation increases the electric conductivity of the plasma channel and facilitates the formation of ring-shaped plasma bullet.For the plasma jet in the open air,electronimpact dissociation of H2O,electron neutralisation of H2O+,as well as dissociation of H2O by O(1D)are found to be the main reactions to produce OH.For micro plasma jet,the higher ignition voltage as the tube diameter decreased is attributed to the deceasing pre-avalanche electron density inside the tube.The simulation of plasma treatment of bacteria biofilm indicates that the mean free path of charged species inμm scale permitted the plasma penetrate into the cavity of the biofilm,and the structure of the biofilm results in the non-uniform distribution of ROS and RNS.The simulation of plasma treatment of cells immersed in liquid suggests that the HO2 generated by plasma aqueous species is the only way for superoxide to penetrate cell membrane and damage cytosolic fumarase B. | He Cheng Xin Liu Xinpei Lu Dawei Liu | 2016 | High Voltage2016，1，2： | 1 |
| 20 | An RC plasma device for sterilization of root canal of teeth显示文摘 | Lu Xinpei Cao Yinguang Yang Ping | 2009 | IEEE Transac-- tions on Plasma Science2009，37，5： | 1 |
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