A5047206262- Magnetic confinement fusion research
- Plasma Diagnostics and Applications
- Dust and Plasma Wave Phenomena
- Ionosphere and magnetosphere dynamics
- Solar and Space Plasma Dynamics
- ZnO doping and properties
- Laser-induced spectroscopy and plasma
- Metal and Thin Film Mechanics
- Gas Sensing Nanomaterials and Sensors
- Superconducting Materials and Applications
- Real-time simulation and control systems
- Advanced Fiber Optic Sensors
- Particle accelerators and beam dynamics
- Fusion materials and technologies
- Copper-based nanomaterials and applications
- Nuclear Physics and Applications
- Ga2O3 and related materials
- Nonlinear Photonic Systems
- Magneto-Optical Properties and Applications
- Healthcare and Venom Research
- Magnetic Field Sensors Techniques
- Traditional Chinese Medicine Studies
- Hydraulic and Pneumatic Systems
- Ultrasonics and Acoustic Wave Propagation
- Autophagy in Disease and Therapy
University of Science and Technology of China
2015-2025
Yunnan Center for Disease Control And Prevention
2025
Chinese Academy of Sciences
2005-2024
University of California, Los Angeles
2022
Institute of Plasma Physics
2022
University of Saskatchewan
2022
North China Electric Power University
2021
University of Iowa
2019
Changchun Institute of Optics, Fine Mechanics and Physics
2006-2007
University of Chinese Academy of Sciences
2006-2007
Dust accumulation significantly affects the solar PV(Photovoltaic) performance, resulting in a considerable decrease output power, which can be reduced by 40% with dust of 4 g/m2. Understanding deposition characteristics PV modules provide theoretical support for selecting cleaning methods and formulating strategies. This paper introduced factors affecting presented research status mechanisms. Moreover, were discussed compared. In future research, comprehensive particle model including...
A novel all-fiber optic current sensor (FOCS) is designed specifically for the measurement of large transient currents based on Faraday effect. reciprocal symmetric structure incorporated into optical sensing loop, and dependent phase demodulation achieved by using a passive fiber coupler homodyne detection scheme. This design offers several advantages, including structural simplicity, high voltage insulation, low noise, linearity, excellent frequency response, highly suitable use in any...
Abstract Melanoma is among the 10 most prevalent malignant tumors, posing a significant threat to human health. A detailed understanding of molecular mechanisms driving its progression crucial for advancing treatment strategies and outcomes. Based on bioinformatic analysis experimental validation, this study identified mitochondrial carrier homolog 2 (MTCH2) as key regulator melanoma proliferation. Mechanistically, MTCH2 enhanced expression nuclear translocation factor...
A lithium (Li) and nitrogen (N) dual-doped p-type ZnO film (ZnO : (Li,N)) was deposited on c-plane sapphire by RF-magnetron sputtering of Zn–2 at.% Li alloy using mixed gases oxygen then annealing in N2 flow. It has a carrier concentration 3.07 × 1016 cm−3 Hall mobility 1.74 cm2 V−1 s−1. XPS measurement shows that there are LiZn–N complexes the (Li,N), which demonstrated photoluminescence measured at various temperatures different excitation powers to be acceptors responsible for...
The characteristics of a weakly collisional sheath in warm electronegative plasma the presence an oblique magnetic field are investigated using fluid model including effects ionization and ion-neutral collisions. general criterion imposed on entrance velocity component positive ions perpendicular to wall at sheath-presheath edge is derived discussed. It shown that boundary conditions crucial structure. Without components parallel wall, pulse-like structure positive-ion density distribution...
Magnetized plasma sheaths in an oblique magnetic field were extensively investigated by conventionally assuming Boltzmann relation for electron density. This article presents the study of magnetized sheath without using but considering reflection along lines caused negative potential. A generalized Bohm criterion is analytically derived, and profiles are numerically obtained, which compared with results conventional model. The show that ion Mach number at edge normal to wall has a strong...
Abstract The Keda Torus eXperiment (KTX) is still operated in the commissioning phase, and preparation for operation capability of KTX phase II upgrade underway. diagnostics have been greatly developed: (1) terahertz interferometer has upgraded to seven chords electron density profile inversion; (2) a Thomson scattering system with 5 Joule laser installed progress; (3) 3D movable probe developed electromagnetic turbulence measurement; (4) double-foil soft x-ray imaging set up bench test...
Abstract A compact torus injection system, KTX-CTI, has been developed for the planned experiments on Keda Torus eXperiment (KTX) reversed field pinch (RFP) device to investigate physics and engineering issues associated with interaction between a (CT) RFP. The key interests include fueling directly into reactor center, confinement improvement, of momentum helicity RFP discharges. CT velocity mass have measured using multichannel optical fiber interferometer, first time evolution density...
Abstract Since the establishment of eddy current diagnostic system within Keda Torus eXperiment (KTX) device, it has unveiled many applications. Recent developments have introduced innovative data analysis techniques alongside compelling experimental results, underscoring necessity for a comprehensive summary system's approaches and broad Notable features encompass exceptional precision, ability to shell currents on entirety closed boundary, vector detection currents, measurement diverse...
An optical fiber Mach–Zehnder interferometer at a wavelength of 1.55 µm has been developed for measurements high electron density on compact torus (CT) plasmas with time resolution 0.1 µs and phase 6.4 × 10−4 rad. To improve measurement accuracy, the noise investigated in detail optimized. In bench test, was calibrated using piezoelectric ceramic actuator known stroke. Initial results CT plasma show that provides reliable two spatial locations bulk velocity can be determined by method flight.
Previous experimental studies on electrostatic ion-cyclotron waves (EICWs) and their instability were often performed in a narrow plasma column Q-machines, which the wave was conventionally generated via driven by an electron current parallel to magnetic field. The propagation characteristics of patterns have seldom been studied, especially different pulse continuous patterns. In this paper, we present launching EICW grid applied with either pulsed or sinusoidal external excitation voltage...
The characteristics of magnetized electron sheath near a positively biased conducting wall parallel to magnetic field formed between two permanent plates were experimentally investigated in double plasma device. strength the is about 1200 G which sufficient magnetize such that ion gyroradius comparable Debye length. A virtual cathode (or potential dip) structure was found electron-rich and bulk plasma. For given neutral gas pressure, minimum (dip position) remains almost same for different...
Ion sheaths formed in the up- and downstream sides of a negatively biased metal plate/mesh an ion-beam-background-plasma system were experimentally investigated double plasma device. Measured potential profiles near plate exhibit asymmetric structure, showing thicker sheath side. The presence ion beam causes shrink on both sides. thickness decreases with increase energy density. Furthermore, mesh are substantially thinner than that because partial transmission to ions. In addition, neutral...
Plasmas containing ion beams have various applications both in plasma technology and fundamental research. The beam energy flux are the two factors characterizing properties. Previous studies not achieved independent adjustment of these parameters. In this paper, an ion-beam-background-plasma system was produced with hot-cathode discharge a double device separated by adjacent grids, which ratio (the between total flux) can be controlled independently. It is shown that voltage (i.e., across...
The potential profiles near a negatively biased stainless steel plate or mesh immersed in an unmagnetized weakly collisional plasma were investigated experimentally. results show that deep virtual cathode structures arise inside the sheath region front of caused by secondary electrons produced streaming ions hitting surface plate. characteristics depend on incoming ion energy, neutral gas pressure, and bulk density. In addition, replacement with suppression because equivalent reduction...
The co-excitation of plasma normal modes and a pseudo-mode (burst-ion signal) in beam–plasma system containing stationary ion beam is experimentally investigated double-plasma device. waves are excited by applying ramp voltage to an excitation grid (rather than separation grid) immersed the system. By studying dependence phase velocities signals on characteristics signal ion-beam velocity, four kinds coexisting can be identified, i.e., fast slow modes, ion-acoustic mode, burst-ion signal,...
The flux of magnetic helicity characterizes how the topology a field changes and its transport play essential roles in plasma equilibrium instabilities reversed-field pinch (RFP) device configuration. Used to suppress magnetohydrodynamic effectively, stabilizing conducting shell located at boundary an RFP is always characterized by eddy-current distribution that evolves rapidly with time. After measuring analyzing eddy currents on this during tokamak discharges Keda Torus eXperiment device,...
KTX, a reversed field pinch (RFP) device, is equipped with robust Magnetohydrodynamic (MHD) magnetic feedback control system, which comprises two distinct loops: an inner loop used for current to generate field, and outer dedicated control; these loops operate in cascading manner. The Proportional-Integral-Derivative (PID) methodology employed. In the pursuit of achieving superior performance, mathematical analysis conducted on both loops. This rigorous examination culminates design Internal...