• Complex
  • Title
  • Author
  • Keyword
  • Abstract
  • Scholars
Search
High Impact Results & Cited Count Trend for Year Keyword Cloud and Partner Relationship

Query:

学者姓名:贾申利

Refining:

Source

Submit Unfold

Co-Author

Submit Unfold

Language

Submit

Clean All

Export Sort by:
Default
  • Default
  • Title
  • Year
  • WOS Cited Count
  • Impact factor
  • Ascending
  • Descending
< Page ,Total 31 >
Experimental Investigation on the Current Carried by a Cathode Spot of Vacuum Arc in Axial Magnetic Fields EI SCIE
期刊论文 | 2021 , 49 (5) , 1648-1653 | IEEE TRANSACTIONS ON PLASMA SCIENCE
Abstract&Keyword Cite

Abstract :

The splitting and threshold currents of vacuum arc cathode spots in axial magnetic fields (AMFs) up to 220 mT are investigated experimentally. Measurements are made on electrodes of Cu and CuCr25 with electrode separations of 2 and 6 mm. The electrode diameter is 30 mm. All the experiments are conducted in a demountable vacuum chamber evacuated continuously by a turbo-molecular pump to a pressure of the order of 10(-3) Pa. The spots are photographed using a high-speed digital camera with an exposure time of 2 mu s. The AMF is applied by means of two permanent magnets placed symmetrically inside the chamber. The experimental results indicate that the splitting and threshold current decrease in the presence of AMF and tend to certain constant values when the field gets stronger. The splitting and threshold currents are considerably larger than Cu electrodes than those with CuCr25 electrodes. With increasing electrode separation, the splitting current decreases while the threshold current increases. Possible explanations are proposed to account for the experimental observations.

Keyword :

cathode spot vacuum arc threshold current splitting current Axial magnetic field (AMF)

Cite:

Copy from the list or Export to your reference management。

GB/T 7714 Shi, Zongqian , Xu, Pengfei , Zhu, Qijie et al. Experimental Investigation on the Current Carried by a Cathode Spot of Vacuum Arc in Axial Magnetic Fields [J]. | IEEE TRANSACTIONS ON PLASMA SCIENCE , 2021 , 49 (5) : 1648-1653 .
MLA Shi, Zongqian et al. "Experimental Investigation on the Current Carried by a Cathode Spot of Vacuum Arc in Axial Magnetic Fields" . | IEEE TRANSACTIONS ON PLASMA SCIENCE 49 . 5 (2021) : 1648-1653 .
APA Shi, Zongqian , Xu, Pengfei , Zhu, Qijie , Wu, Bingzhou , Wang, Cong , Jia, Shenli . Experimental Investigation on the Current Carried by a Cathode Spot of Vacuum Arc in Axial Magnetic Fields . | IEEE TRANSACTIONS ON PLASMA SCIENCE , 2021 , 49 (5) , 1648-1653 .
Export to NoteExpress RIS BibTex
Analysis of influence of a novel inductive fault current limiter on the circuit breaker in 500-kV power system SCIE
期刊论文 | 2021 | HIGH VOLTAGE
Abstract&Keyword Cite

Abstract :

A contribution to the engineering application of a proposed 500-kV fault current limiter (FCL) is presented. A new type of FCL composed of a highly coupled split reactor (HCSR) and fast switches is proposed. When the circuit breaker (CB) in series with the FCL in the 500-kV power system interrupts the limited fault current, the rate of rise of the recovery voltage (RRRV) reaches a value much higher than the rated value. Based on a simplified equivalent single-phase circuit, the influence of the new FCL on the interruption procedure of the CB is simulated and discussed. The simulation results show that the high RRRV is caused by high-frequency resonant oscillations between the HCSR and its parasite capacitance. Analysis indicates that when the reactance of the FCL is close to the short circuit reactance of the system, the RRRV will reach the highest value. To solve this issue, we proposed installing a shunt capacitor with the FCL. Simulation results showed that the RRRV under all fault modes could be restrained to below the rated value by introducing a certain shunt capacitor.

Cite:

Copy from the list or Export to your reference management。

GB/T 7714 Tang, Qiang , Jia, Shenli , Zhang, Yanzhe et al. Analysis of influence of a novel inductive fault current limiter on the circuit breaker in 500-kV power system [J]. | HIGH VOLTAGE , 2021 .
MLA Tang, Qiang et al. "Analysis of influence of a novel inductive fault current limiter on the circuit breaker in 500-kV power system" . | HIGH VOLTAGE (2021) .
APA Tang, Qiang , Jia, Shenli , Zhang, Yanzhe , Xiu, Shixin , Mo, Wenxiong , Wang, Yong et al. Analysis of influence of a novel inductive fault current limiter on the circuit breaker in 500-kV power system . | HIGH VOLTAGE , 2021 .
Export to NoteExpress RIS BibTex
Research on Interrupting Processes of A 10 kV Mechanical HVDC Circuit Breaker EI Scopus
会议论文 | 2020 , 928-932 | 4th International Conference on HVDC, HVDC 2020
Abstract&Keyword Cite

Abstract :

Flexible HVDC transmission has wide prospects in new energy grid connection and consumption, rail traction, and the urban distribution network in the future. Mechanical HVDC circuit breaker is one of the most potential breaking methods in the future due to its high current interruption ability and low on-state loss. Firstly, the parameters di/dt and du/dt which affect them breaking performance are analyzed in this paper. Then, the variation of voltage and current characteristics of a 10kV mechanical HVDC circuit breaker under different operating conditions are simulated with Matlab/Simulink. Finally, the impact of two typical circuit breaker failures on di/dt and du/dt were analyzed and compared. © 2020 IEEE.

Keyword :

HVDC power transmission Electric circuit breakers Timing circuits

Cite:

Copy from the list or Export to your reference management。

GB/T 7714 Bao, Leilei , Mo, Yongpeng , Yang, Dawei et al. Research on Interrupting Processes of A 10 kV Mechanical HVDC Circuit Breaker [C] . 2020 : 928-932 .
MLA Bao, Leilei et al. "Research on Interrupting Processes of A 10 kV Mechanical HVDC Circuit Breaker" . (2020) : 928-932 .
APA Bao, Leilei , Mo, Yongpeng , Yang, Dawei , Yang, Minxiang , Shi, Zongqian , Jia, Shenli . Research on Interrupting Processes of A 10 kV Mechanical HVDC Circuit Breaker . (2020) : 928-932 .
Export to NoteExpress RIS BibTex
Research on discharge and radiation characteristics of multi-electrode high power pulsed xenon flash lamp EI CPCI-S Scopus
会议论文 | 2019 , 10896 | Conference on Solid State Lasers XXVIII - Technology and Devices
Abstract&Keyword Cite

Abstract :

As the laser pumping source, pulsed xenon flash lamp is widely used in high power laser amplifier system such as inertial confinement fusion projects. The radiation efficiency of pulsed xenon flash lamp is the crucial parameter. In our previous work, it has been proven that the pulsed xenon flash lamp with annular section has higher radiation efficiency as well as laser amplifier efficiency compared with traditional flash lamp. To further improve the characteristics of this kind annular section flash lamp, a multi-electrode system was proposed for annular section flash lamp in this paper. Experimental results shown that the discharge channels established more quickly and expended fast to whole lamp tube space. Also the distribution of the discharge plasma is more uniform. The novel multi-electrode xenon flash lamp has been investigated in the aspects of the electrical characteristics, the discharge plasma channel, radiation and neodymium doped glass fluorescence. Experimental results show that discharge and radiation characteristics of xenon flash lamp with multi-electrode structure are improved. The detail mechanisms of the improvements for the multi-electrode structure will be discussed in this paper.

Keyword :

multi-electrode radiation efficiency flash lamp fluorescence

Cite:

Copy from the list or Export to your reference management。

GB/T 7714 Jia, Shenli , Mo, Yongpeng , Huang, Chumin et al. Research on discharge and radiation characteristics of multi-electrode high power pulsed xenon flash lamp [C] . 2019 .
MLA Jia, Shenli et al. "Research on discharge and radiation characteristics of multi-electrode high power pulsed xenon flash lamp" . (2019) .
APA Jia, Shenli , Mo, Yongpeng , Huang, Chumin , Fan, Shuwei , Liu, Jianjun , Li, Haibing . Research on discharge and radiation characteristics of multi-electrode high power pulsed xenon flash lamp . (2019) .
Export to NoteExpress RIS BibTex
Factors affecting the exploding characteristics of tungsten wires with negative-polarity current EI SCIE Scopus
期刊论文 | 2017 , 24 (1) | PHYSICS OF PLASMAS | IF: 1.941
WoS CC Cited Count: 8 SCOPUS Cited Count: 7
Abstract&Keyword Cite

Abstract :

This paper presents the experimental results of electrical explosion of tungsten (W) wires in a vacuum using a negative-polarity current pulse with a magnitude of 1-2 kA. Uniform wire explosions with deposited energy sufficient for full vaporization are achieved for 0.5 cm-long W wires with the help of dielectric coating and soldering. Experimental results show that the dielectric coating can give 2-3 times more energy deposition by delaying the voltage breakdown. In order to improve the electrical contact, the metallic oxide on the surface of the electrodes is removed with sandpaper, and then the W wire is soldered to the electrodes. It is found that the improved electrical contact does not have an obvious influence on increasing the energy deposition. However, from the optical images, it can be seen that the uniformity of the wire explosion is greatly improved, especially for the W wire with 2 lm polyimide coating. Therefore, the dielectric coating and good electrical contact are the two key factors to uniformly transform the W wire into a gaseous state. With this method, the uniform wire explosions for longer tungsten wires (1 and 2 cm) are also realized under the same experimental conditions. Published by AIP Publishing.

Cite:

Copy from the list or Export to your reference management。

GB/T 7714 Shi, Yuanjie , Shi, Zongqian , Wang, Kun et al. Factors affecting the exploding characteristics of tungsten wires with negative-polarity current [J]. | PHYSICS OF PLASMAS , 2017 , 24 (1) .
MLA Shi, Yuanjie et al. "Factors affecting the exploding characteristics of tungsten wires with negative-polarity current" . | PHYSICS OF PLASMAS 24 . 1 (2017) .
APA Shi, Yuanjie , Shi, Zongqian , Wang, Kun , Wu, Ziqian , Jia, Shenli . Factors affecting the exploding characteristics of tungsten wires with negative-polarity current . | PHYSICS OF PLASMAS , 2017 , 24 (1) .
Export to NoteExpress RIS BibTex
Numerical investigation on the growth process and size distribution of nanoparticles obtained through electrical explosion of aluminum wire EI SCIE Scopus
期刊论文 | 2017 , 50 (7) | JOURNAL OF PHYSICS D-APPLIED PHYSICS | IF: 2.373
WoS CC Cited Count: 7 SCOPUS Cited Count: 8
Abstract&Keyword Cite

Abstract :

Numerical investigations on the formation process and the final size distribution of nanoparticles during electrical explosion of Al wire are carried out. Firstly, the formation of the atomic vapor clusters is investigated. It indicates that the Al wire does not reach its atomization conditions. The size of the atomic vapor clusters is obtained, and it increases with the temperature at explosion. Then the growth process of Al nanoparticles from the formed atomic vapor clusters is modeled and the size distribution is predicted. The size distribution at different temperatures indicates that the growth process of Al nanoparticles becomes inactive gradually as the temperature decreases. The investigation of the size distribution under different cooling rates indicates that the bigger cooling rate is favorable for the formation of Al nanoparticles with smaller size dispersion and lower average dimension. The size distribution of Al nanoparticles obtained by the model is qualitatively consistent with the experimental data, which demonstrates the feasibility of this model.

Keyword :

nodal method nanoparticles electrical explosion

Cite:

Copy from the list or Export to your reference management。

GB/T 7714 Bai, Jun , Shi, Zongqian , Jia, Shenli . Numerical investigation on the growth process and size distribution of nanoparticles obtained through electrical explosion of aluminum wire [J]. | JOURNAL OF PHYSICS D-APPLIED PHYSICS , 2017 , 50 (7) .
MLA Bai, Jun et al. "Numerical investigation on the growth process and size distribution of nanoparticles obtained through electrical explosion of aluminum wire" . | JOURNAL OF PHYSICS D-APPLIED PHYSICS 50 . 7 (2017) .
APA Bai, Jun , Shi, Zongqian , Jia, Shenli . Numerical investigation on the growth process and size distribution of nanoparticles obtained through electrical explosion of aluminum wire . | JOURNAL OF PHYSICS D-APPLIED PHYSICS , 2017 , 50 (7) .
Export to NoteExpress RIS BibTex
The force analysis for superparamagnetic nanoparticles-based gene delivery in an oscillating magnetic field EI SCIE Scopus
期刊论文 | 2017 , 427 , 85-89 | JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | IF: 3.046
WoS CC Cited Count: 2 SCOPUS Cited Count: 3
Abstract&Keyword Cite

Abstract :

Due to the peculiar magnetic properties and the ability to function in cell-level biological interaction, superparamagnetic nanoparticles (SMNP) have been being the attractive carrier for gene delivery. The superparamagnetic nanoparticles with surface-bound gene vector can be attracted to the surface of cells by the Kelvin force provided by external magnetic field. In this article, the influence of the oscillating magnetic field on the characteristics of magnetofection is studied in terms of the magnetophoretic velocity. The magnetic field of a cylindrical permanent magnet is calculated by equivalent current source (ECS) method, and the Kelvin force is derived by using the effective moment method. The results show that the static magnetic field accelerates the sedimentation of the particles, and drives the particles inward towards the axis of the magnet. Based on the investigation of the magnetophoretic velocity of the particle under horizontally oscillating magnetic field, an oscillating velocity within the amplitude of the magnet oscillation is observed. Furthermore, simulation results indicate that the oscillating amplitude plays an important role in regulating the active region, where the particles may present oscillating motion. The analysis of the magnetophoretic velocity gives us an insight into the physical mechanism of the magnetofection. It's also helpful to the optimal design of the magnetofection system.

Keyword :

Gene delivery Kelvin force Oscillating magnetic field Cell Magnetofection Superparamagnetic nanoparticles

Cite:

Copy from the list or Export to your reference management。

GB/T 7714 Sun, Jiajia , Shi, Zongqian , Jia, Shenli et al. The force analysis for superparamagnetic nanoparticles-based gene delivery in an oscillating magnetic field [J]. | JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS , 2017 , 427 : 85-89 .
MLA Sun, Jiajia et al. "The force analysis for superparamagnetic nanoparticles-based gene delivery in an oscillating magnetic field" . | JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS 427 (2017) : 85-89 .
APA Sun, Jiajia , Shi, Zongqian , Jia, Shenli , Zhang, Pengbo . The force analysis for superparamagnetic nanoparticles-based gene delivery in an oscillating magnetic field . | JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS , 2017 , 427 , 85-89 .
Export to NoteExpress RIS BibTex
The Motion Characteristics of a Single Cathode Spot in Removing Oxide Layer on Metal Surface by Vacuum Arc EI SCIE Scopus
期刊论文 | 2017 , 45 (1) , 106-112 | IEEE TRANSACTIONS ON PLASMA SCIENCE | IF: 1.253
WoS CC Cited Count: 2 SCOPUS Cited Count: 3
Abstract&Keyword Cite

Abstract :

The motion of cathode spots plays a crucial important role in removing oxide layer on a metal surface by vacuum arc. In this paper, the characteristics of the motion of a single cathode spot on metal surface with oxide layer are investigated experimentally. Experiments are conducted in a detachable vacuum chamber. A hollow copper anode with a hole of 10 mm x 10 mm is used in order to observe the 2-D motion of the cathode spot. The motion of the cathode spot during the descaling process is photographed by a high-speed digital camera with an exposure time of 2 mu s. Experimental results indicate that there are slow motion and fast motion of the cathode spot during descaling process, and the slow motion is the basic characteristic in most of the descaling time. The probability distribution of the cathode spot's displacement and resident time, the average velocity, and the movement parameter S-2/t are analyzed quantitatively. The results indicate that with the increase of gap distance or the decrease of oxide layer thickness, the cathode spot becomes more active.

Keyword :

Cathode spots probability vacuum arc oxide layer motion gap distance

Cite:

Copy from the list or Export to your reference management。

GB/T 7714 Li, Wenhui , Shi, Zongqian , Wang, Cong et al. The Motion Characteristics of a Single Cathode Spot in Removing Oxide Layer on Metal Surface by Vacuum Arc [J]. | IEEE TRANSACTIONS ON PLASMA SCIENCE , 2017 , 45 (1) : 106-112 .
MLA Li, Wenhui et al. "The Motion Characteristics of a Single Cathode Spot in Removing Oxide Layer on Metal Surface by Vacuum Arc" . | IEEE TRANSACTIONS ON PLASMA SCIENCE 45 . 1 (2017) : 106-112 .
APA Li, Wenhui , Shi, Zongqian , Wang, Cong , Shi, Fei , Jia, Shenli , Wang, Lijun . The Motion Characteristics of a Single Cathode Spot in Removing Oxide Layer on Metal Surface by Vacuum Arc . | IEEE TRANSACTIONS ON PLASMA SCIENCE , 2017 , 45 (1) , 106-112 .
Export to NoteExpress RIS BibTex
Spatial confinement in laser-induced breakdown spectroscopy EI SCIE Scopus
期刊论文 | 2017 , 50 (1) , 8 | JOURNAL OF PHYSICS D-APPLIED PHYSICS | IF: 2.373
WoS CC Cited Count: 23 SCOPUS Cited Count: 23
Abstract&Keyword Cite

Abstract :

The spatial confinement of plasma produced by a nanosecond laser is investigated using time resolved spectroscopy, fast imaging, interferometry, and numerical computation. The dynamics of the plasma, depending on shock waves, laser power, and wall distances, are studied. Experimental results confirm that the plasma is constricted by the reflected shock associated with a temperature and density gradient. The peak laser power determines the initial plasma parameters which affect the spectral intensities and the velocity of the reflective shock waves. The wall distance determines the reflection time of the shocks, which in turn influences the time delay of the collision between the two reflective shocks. The numerical results reveal a fast propagation process surrounding the reflective shocks, which indicates that the velocity of the reflective shock wave is influenced by the density of the plasma. The maximum enhancement factor similar to 5.2 is realized at a delay time of 11.7 mu s under a pulse laser energy of 180 mJ and a wall distance of 9 mm.

Keyword :

laser produced plasma spatial confinement laser induced breakdown spectroscopy

Cite:

Copy from the list or Export to your reference management。

GB/T 7714 Li, Xingwen , Yang, Zefeng , Wu, Jian et al. Spatial confinement in laser-induced breakdown spectroscopy [J]. | JOURNAL OF PHYSICS D-APPLIED PHYSICS , 2017 , 50 (1) : 8 .
MLA Li, Xingwen et al. "Spatial confinement in laser-induced breakdown spectroscopy" . | JOURNAL OF PHYSICS D-APPLIED PHYSICS 50 . 1 (2017) : 8 .
APA Li, Xingwen , Yang, Zefeng , Wu, Jian , Wei, Wenfu , Qiu, Yan , Jia, Shenli et al. Spatial confinement in laser-induced breakdown spectroscopy . | JOURNAL OF PHYSICS D-APPLIED PHYSICS , 2017 , 50 (1) , 8 .
Export to NoteExpress RIS BibTex
Simulation and optimization for the optical performance of Top-emitting OLED EI CPCI-S Scopus
会议论文 | 2017 , 10362 | Conference on Organic Light Emitting Materials and Devices XXI
Abstract&Keyword Cite

Abstract :

The light out-coupling efficiency of top-emitting OLED devices with different micro-structures was investigated with the aid of software FDTD solutions. The micro-structures included surface grating, wavy shape and spherical micro lens respectively. The simulation results indicated that the micro-structure was helpful to improve the light out-coupling efficient of OLED. Further more a complex spherical crown surface micro-structure was designed. The light out-coupling efficient of top-emitting OLED with the complex spherical surface improved 14% compared that of the device with smooth surface and 6% compared with micro lens.

Keyword :

Optimization design Top emitting Micro structure OLED FDTD

Cite:

Copy from the list or Export to your reference management。

GB/T 7714 Chen Nana , Fan Shuwei , Wu Zhaoxin et al. Simulation and optimization for the optical performance of Top-emitting OLED [C] . 2017 .
MLA Chen Nana et al. "Simulation and optimization for the optical performance of Top-emitting OLED" . (2017) .
APA Chen Nana , Fan Shuwei , Wu Zhaoxin , Jiao Bo , Shen Li Jia . Simulation and optimization for the optical performance of Top-emitting OLED . (2017) .
Export to NoteExpress RIS BibTex
10| 20| 50 per page
< Page ,Total 31 >

Export

Results:

Selected

to

Format:
FAQ| About| Online/Total:1046/98213555
Address:XI'AN JIAOTONG UNIVERSITY LIBRARY(No.28, Xianning West Road, Xi'an, Shaanxi Post Code:710049) Contact Us:029-82667865
Copyright:XI'AN JIAOTONG UNIVERSITY LIBRARY Technical Support:Beijing Aegean Software Co., Ltd.