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| 1 | Pressure Distribution Induced by Ionic Wind in Needle-to-water Corona Discharge显示文摘The negative DC corona discharge in air at atmospheric pressure was investigated in a needle-to-water system to obtain the pressure distribution of corona ionic wind.The deformation of water surface was measured and the distribution of wind pressure over the water surface was calculated.The effects of varying discharge parameters,such as applied voltage,gap spacing,tip radius of needle,and the shape of grounded electrode,on the wind pressure were studied.The measured wind pressure ranges from several Pa to several tens of Pa and up to 33 Pa over a small area;the pressure is comparatively large in the center and decreases quickly outwards.In the experiment system,a higher voltage on a 3 mm gap resulted in a stronger pressure of the ionic wind;around the onset voltage,using a needle with tip radius of 50μm obtained a larger wind pressure than using a needle with 100μm tip radius,but the latter one can produce larger pressure at higher voltages.Plus,the shape of the grounded electrode only influences the wind pressure a little. | ZHANG Yu LIU Lijuan OUYANG Jiting | 2013 | 高电压技术2013，39，9： | 2 |
| 2 | Self-pulsing oper ating mode of hollow cathode diseharge in noble gas显示文摘 | He Shoujie Ouyang Jiting He Feng | 2012 | Phys ics of Plasmas2012，19，02： | 1 |
| 3 | Stationary stria- tions in hollow cathode discharge显示文摘 | He Shoujie Ouyang Jiting Li Shang | 2011 | IEEE Transactions on Plasma Science2011，39，11： | 1 |
| 4 | Numerical study on rectangular microhollow cathode discharge显示文摘 | He Shoujie Ouyang Jiting He Feng | 2011 | Phys Plasmas2011，18，03： | 1 |
| 5 | Fast diagnosis of transient plasma by Langmuir probe显示文摘 | Tang Enling Zhang Qingming Ouyang Jiting | 2007 | Journal of Beijing Institute of Technology (English Edition)2007，16，3： | 1 |
| 6 | 查看详情显示文摘 | Feng Shuo He Feng OuYang Jiting | | 0，，： | 1 |
| 7 | Experiments on plasma dynamics of electrical wire explosion in air显示文摘Besides a typical high‐density plasma source,electrical explosion of conductors is also indispensable in switches,nanomaterial synthesis,shock‐wave sources,etc.In this paper,an experimental study regarding plasma dynamics of electrical wire explosions(μs‐timescale)is presented,with spatiotemporal resolved diagnostics.Pure Cu/Ni wire and Cu‐Ni alloy wire were used and compared.The alloy wire usually has a higher resistivity,resulting in a higher initial energy deposition(heating)rate.Abel inverse transformation indicated that the plasma radiation focussed on the outer region of the discharge channel for the alloy wire.In addition,the metallic vapour determined by the material properties had a considerable influence on the plasma process and resulting nanomaterials.In particular,both transverse and axial‐layered structures were observed in alloy wire vapour.In addition,for the first time,the expanding arc‐like plasma of explosion products was understood and examined from aspects of material properties and energy relaxation.The later stage of wire explosion resembled the state of regular metal vapour arcs under 1 MPa pressure.Finally,the core factor for the fast energy deposition stage of wire explosion was ascertained.Correlations between pre‐exposition circuit parameters and post‐explosion dynamic effects were found,which is significant for practical applications. | Ruoyu Han Chen Li Wei Yuan Jiting Ouyang Jiawei Wu Yanan Wang Weidong Ding Yongmin Zhang | 2022 | High Voltage2022，7，1： | 1 |
| 8 | Pattern formation and boundary effect in dielectric barrier glow discharge显示文摘 | DUAN Xiaoxi OUYANG Jiting ZHAO Xiaofei | 2009 | Physical Review E2009，80，01： | 1 |
| 9 | Study of the Discharge Mode in Micro-Hollow Cathode显示文摘In this study, micro-hollow cathode discharge (MHCD) is investigated by a fluid model with drift-diffusion approximation. The MHC device is a cathode/dielectric/anode sandwich structure with one hole of a diameter D=200 μm. The gas is a Ne/Xe mixture at a pressure p=50~500 Torr. The evolutions of the discharge show that there are two different discharge modes. At larger pD the discharge plasma and high density excited species expand along the cathode surface and, a ringed discharge mode is formed. At smaller pD, the discharge plasma and the excited species expand along the axis of the cathode aperture to form a columnar discharge. | HE Feng HE Shoujie ZHAO Xiaofei GUO Bingang OUYANG Jiting | 2012 | Plasma Science and Technology2012，14，12： | 1 |
| 10 | Pattern for- mation and boundary effect in dielectric barrier glow discharge 显示文摘 | Duan Xiaoxi Ouyang Jiting Zhao Xiaofei | 2009 | Physical Review E2009，80，1： | 1 |
| 11 | Study on ultraviolet ozonation method for treating TNT-containing solution显示文摘 | Ouyang Jiting Liu Xiaochun Feng Changgen | 1999 | Journal of Beijing University of Science and Technology1999，19，5： | 1 |
| 12 | Local discharge and dis- tribution of wall charge in coplanar dielectric barrier discharge 显示文摘 | Ouyang Jiting He Feng Feng Shuo | 2006 | Applied Physics Letters2006，89，3： | 1 |
| 13 | Effect of magnetic field on double layer in argon helicon plasma显示文摘The electric double layer in argon helicon plasma by using floating electrostatic probe and local optical emission spectroscopy under different external magnetic field was investigated.Results show that electrons generated in the plasma source can be magnetized by the magnetic field and transported by the gradient of diverging magnetic field in the diffusion chamber,giving rise to the hollowed distribution of electron temperature.The electron temperature on axis has a sudden decrease,leading to the sudden decrease of plasma density as well as the plasma potential,forming a double layer structure.The position of double layer moves along with the position of diverging magnetic field,and the potential drop increases along with the strength of magnetic field.The structure of the external magnetic field plays the decisive factor for the double layer in helicon plasma. | Kaiyi Yang Ruilin Cui Wanying Zhu Zhiwen Wu Jiting Ouyang | 2021 | High Voltage2021，6，2： | 0 |
| 14 | Characteristic of Atmospheric Pressure Plasma Jet in Coplanar Dielectric Barrier Discharge显示文摘Non-thermal plasma jet at atmospheric pressure has recently attracted lots of attention because of its applications in plasma bullet or plasma plume.Thus,we studied on generating plasma jet by coplanar dielectric barrier discharge in a device driven by sinusoidal voltage.The processes of plasma discharges in both positive and negative half cycles were recorded using a high-speed ICCD(intensified charge-coupled device)camera;based on the results we estimated the velocity of plasma propagation,and investigated the influence of gas flow on the plasma development.It is shown that the plasma bullets,which have velocity in the order of 103~104m/s,exist only outside the cathode.APPJ(atmospheric pressure plasma jet)is created by the electron beam from the cathode,and then sustained by a strong radial electric field near and outside the cathode.The gas flow influences the APPJ length in air but not the APPJ discharge,while the discharge is affected significantly by the applied voltage. | LIU Lijuan ZHANG Yu OUYANG Jiting | 2013 | 高电压技术2013，39，9： | 0 |
| 15 | Application of an atmospheric pressure plasma jet in a rat model of ischaemic stroke:Design,optimisation,and characteristics显示文摘Recent studies have shown the in vitro neuro-protective functions of atmospheric pressure plasma(APP)against multiple pathological injuries during ischaemic stroke(IS).However,whether APP treatment exerts a therapeutic effect on a rat IS model remains unclear.Here,on the basis of needle-to-ring dielectric barrier discharge,an atmospheric pressure plasma jet(APPJ)was designed,with the Helium as the working gas which was driven by a sinusoidal voltage.Then,the treatment conditions were optimised for IS rat model treatment and the characteristics of this APPJ were further diagnosed.Subsequently,the rat IS model was established through 90 min middle cerebral artery occlusion(MCAO),and plasma was intermittently inhaled by rats via the nasal cavity for a 2 min period at 60 min of MCAO process.The therapeutic effects of this plasma jet device were then evaluated using biomedical analyses.According to our results,intermittent APP inhalation in the MCAO rats increased the serum NO content,improved the neurological function,enhanced regional cerebral blood flow,lowered brain infarction,and reduced the cell apoptosis in brain tissues of MCAO rats.Collectively,our data provides a novel potential strategy for IS treatment by using atmospheric-pressure plasma inhalation. | Ye Chen Bingyan Yang Yuqing Liu Lixin Xu Zhongfang Shi Yixiao Liu Ruoyu Han Fang Yuan Jiting Ouyang Xu Yan Kostya(Ken)Ostrikov | 2023 | High Voltage2023，8，2： | 0 |
| 16 | Experiments on the characteristics of underwater electrical wire explosions for reservoir stimulation显示文摘Underwater shock waves generated by pulsed electrical discharges are an effective,economical,and environmentally friendly means of stimulating reservoirs,and this technology has received much attention and intensive research in the past few years.This paper reviews the main results of recent work on underwater electrical wire explosion(UEWE)for reservoir stimulation.Aplatform is developed for microsecond singlewire explosions in water,and diagnostics based on a voltage probe,current coil,pressure probe,photodiode,and spectrometer are used to characterize the UEWE process and accompanying shock waves.First,the UEWE characteristics under different discharge types are studied and general principles are clarified.Second,the shock-wave generation mechanism is investigated experimentally by interrupting the electrical energy injection into the wire at different stages of the wire-explosion process.It is found that the vaporization process is vital for the formation of shock waves,whereas the energy deposited after voltage collapse has only a limited effect.Furthermore,the relationships between the electrical-circuit and shock-wave parameters are investigated,and an empirical approach is developed for estimating the shock-wave parameters.Third,how the wire material and water state affect the wire-explosion process is studied.To adjust the shock-wave parameters,a promising method concerning energetic material load is proposed and tested.Finally,the fracturing effect of the pulsed-discharge shock waves is discussed,as briefly are some of the difficulties associated with UEWE-based reservoir stimulation. | Ruoyu Han Jiawei Wu Haibin Zhou Yongmin Zhang Aici Qiu Jiaqi Yan Weidong Ding Chen Li Chenyang Zhang Jiting Ouyang | 2020 | Matter and Radiation at Extremes2020，5，4： | 0 |
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