A5102004362- Magnetic confinement fusion research
- Ionosphere and magnetosphere dynamics
- Plasma Applications and Diagnostics
- Catalytic Processes in Materials Science
- Atomic and Subatomic Physics Research
- Plasma Diagnostics and Applications
- Laser-Plasma Interactions and Diagnostics
- Particle accelerators and beam dynamics
- Advanced Photocatalysis Techniques
- MXene and MAX Phase Materials
- Atomic and Molecular Physics
- Boron and Carbon Nanomaterials Research
- Electrocatalysts for Energy Conversion
- Bluetooth and Wireless Communication Technologies
- 2D Materials and Applications
- Minerals Flotation and Separation Techniques
- Metallurgical Processes and Thermodynamics
- Metal Extraction and Bioleaching
- Electrohydrodynamics and Fluid Dynamics
- Gas Sensing Nanomaterials and Sensors
- Superconducting Materials and Applications
- Laser-induced spectroscopy and plasma
- Solar and Space Plasma Dynamics
- Target Tracking and Data Fusion in Sensor Networks
- Nuclear Physics and Applications
North Minzu University
2009-2022
Donghua University
2016-2018
Nation University
2015
Northwest Minzu University
2008
Institute of Plasma Physics
2006
Chinese Academy of Sciences
2005
Toluene removal by double dielectric barrier charge (DDBD) plasma combined with a ZrMnFe/Sepiolite (SEP) catalyst was investigated and compared the results from Fe/SEP, Mn/SEP MnFe/SEP ones. All catalysts were prepared impregnation method characterized XRD, BET, ICP, SEM, TEM, H2-TPR XPS. The effect of on toluene degradation efficiency, carbon balance, CO2 selectivity residual O3 concentration studied. experimental indicated that ZrMnFe/SEP presented best catalytic performance. This is...
The humidity effects on the benzene decomposition process were investigated by dielectric barrier discharge (DBD) plasma reactor. results showed that water vapor played an important role in oxidation process. It was found there optimum value for removal efficiency, and at around 60% relative (RH), efficiency achieved. At a SIE of 378 J/L, 66% 0% RH, while reached 75.3% RH dropped to 69% 80% RH. Furthermore, addition inhibited formation ozone NO2 remarkably. Both concentrations decreased with...
Enhancement of the efficiency, energy yield (EY) and COx selectivity volatile organic compound (VOC) removal by negative DC corona discharge through application a magnetic field was demonstrated. Experimental studies were carried out in wire-to-cylinder type reactor composed an aluminum cylinder with 20 mm inner diameter nickel-chrome wire 0.5 located at its axis. Toluene chosen as VOC agent. During experiments, outer tube connected to high voltage, while central grounded. The stationary...
It is the first time so far as we know that two arrays of multi-channel soft x-ray detectors are used to generate two-dimensional (2D) images sawtooth oscillation on HT-7 tokamak using Fourier–Bessel harmonic reconstruction method and singular value decomposition analyse data from cameras. By these arrays, 2D image emissivity can be obtained without assumption plasma rigid rotation. Tomographic m=1 mode structure during precursor crash. The crescent-shaped appearing contour map consistent...
Layered transition metal dichalcogenides (TMDs), such as molybdenum ditelluride (MoTe 2 ), have attracted much attention because of their novel structure-related physicochemical properties. In particular, semi-metallic-phase MoTe (1T′) is considered a competitive candidate for low-cost electrocatalysts water splitting. However, there are few reports on the simple hydrothermal synthesis nanostructures compared with other layered TMDs. this study, facile one-step process was developed...
Gaussian complex wavelet transform was used in the dynamic frequency spectrum analysis of HT-7 MHD (magneto-hydrodynamic) oscillations. It is shown that this method can provide good temporal resolution and spatial resolution, which suitable to analyze Typical discharges with sawtooth instabilities are analyzed method. The results show oscillation associated plasma pressure gradient.
The soft X-ray imaging system on HT-7 is introduced. Fourier–Bessel expansion method used to reconstruct the emission distribution. Simulation results show that inversion accuracy associated with angular limit and hot core displacement. In addition, tomographic of sawtooth oscillations in a typical low hybrid current drive (LHCD) plasma are presented. It shown reconstructions reliable analyze perturbative mode evolution.
Multi-channel soft x-ray (SX) detectors are applied to generate images of magnetohydrodynamic (MHD) oscillation on the HT-7 tokamak and data from SX cameras analysed by using Fourier–Bessel harmonic reconstruction method singular value decomposition. The image emissivity is obtained assumption plasma rigid rotation. One important phenomena in discharge transition sawtooth oscillations MHD when density grows higher. structure observed tomography featured as follows: magnetic surface made up...
Double q = 1 surfaces during a sawtooth crash were identified in EAST ELM-free H-mode LHCD plasma. An off-axis-peaking and enhanced soft-X-ray (SXR) profile due to the presence of high-Z impurities accumulated plasma core region is observed after crash. The oscillations with nonmonotonic can be explained satisfactorily by partial reconnection model. Considerable near centre are response formation double surfaces.
Strong braking of the m = 1 impurity-induced (e.g. molybdenum emission) density perturbation 'snake' was observed in EAST sawtoothing plasma. The shift peak positions soft x-ray emissions due to snake can be as high 7 cm. Notable electron fluctuations (δne/ne0 8%) originating from this are measured by a hydrogen cyanide laser interferometer. Due mode coupling, synchronous locking 2 tearing and snakes is expected happen when width island exceeds critical value. A value for calculated. forced...
Experiments with different directions of toroidal magnetic fields were performed on the EAST tokamak. The sawtooth behavior has been investigated in both ohmical and LHCD‐ICRF plasmas (lower hybrid current drive ion-cyclotron radio frequency). It is found that configuration only a negligible effect behavior. Sawtooth periods changed dramatically plasma where direction electron diamagnetic drift velocity was inversed. rotation precursor reversed when field changed. We also period depends...
A method for studying the central plasma structure using soft X-ray signals in HT-7 tokamak is reported. Through analysing a typical discharge with MHD instability, position and rotation direction of magnetic island are obtained from signals. The validated contour map emissivity m=2 mode observed on Mirnov
The physical properties and stability of orthorhombic FeN 2 under high pressure remain an open question. spin‐polarized first‐principles calculations within the generalized gradient approximation GGA + U functional are used to study structural, elastic, electronic, magnetic pressure. variations lattice constants bond lengths as a function in range 0–100 GPa presented. elastic constants, moduli, Poisson's ratio, wave velocities, Debye temperature, thermal expansion coefficient also given....