A5113173849- Magnetic confinement fusion research
- Ionosphere and magnetosphere dynamics
- Laser-Plasma Interactions and Diagnostics
- Particle accelerators and beam dynamics
- Fusion materials and technologies
- Solar Thermal and Photovoltaic Systems
- Plasma Diagnostics and Applications
- Superconducting Materials and Applications
- Thermodynamic and Exergetic Analyses of Power and Cooling Systems
- Phase Change Materials Research
- Animal Disease Management and Epidemiology
- Solar and Space Plasma Dynamics
- Astrophysics and Cosmic Phenomena
- Magnesium Alloys: Properties and Applications
- Poxvirus research and outbreaks
- Particle Detector Development and Performance
- Family Support in Illness
- Silicon Carbide Semiconductor Technologies
- Hydrogen Storage and Materials
- Electrostatic Discharge in Electronics
- HIV Research and Treatment
- Influenza Virus Research Studies
- Laser-induced spectroscopy and plasma
- Semiconductor Quantum Structures and Devices
- Aluminum Alloys Composites Properties
Tongren Hospital
2025
Shanghai Jiao Tong University
2025
Henan University of Science and Technology
2024
Xi'an Jiaotong University
2023-2024
Southwestern Institute of Physics
1993-2023
University of Science and Technology of China
1993-2021
Chinese Academy of Sciences
2009
Abstract Background Self-efficacy in mpox (formerly known as monkeypox) prevention plays a pivotal role promoting preventive behaviors by fostering sense of control and motivation, especially among men who have sex with (MSM), the population most affected many countries. Objective This study aims to assess self-efficacy MSM China identify factors influencing it, using validated scale. Methods From October 2023 March 2024, nationwide cross-sectional was conducted (aged ≥18 years) across 6...
Recent experiment results from the HL-2A tokamak are presented in this paper. Supersonic molecular beam injection (SMBI) with liquid nitrogen temperature propellant is used. Low SMBI can form hydrogen clusters that penetrate into plasma more deeply and efficiently. Particle diffusion coefficient convection velocity (D = 0.5–1.5 m2 s−1 Vconv < 40 m s−1, respectively) obtained at periphery using modulated SMBI. Multi-probe measurements reveal 0–1, n 0 symmetries of directly measured low...
Significant experimental advances have been made on the HL-2A tokamak along with substantial improvement and development of hardware. A spontaneous particle transport barrier has observed in Ohmic discharges without any external momentum input. The was evidenced by a density perturbation study using modulated supersonic molecular beam injection (SMBI) microwave reflectometry. new features non-local effect induced SMBI analysed. three-dimensional spectral structures low frequency zonal flow,...
The physics experiments on the HL-2A tokamak have been focused confinement improvement, particle and thermal transport, zonal flow turbulence, filament characteristics, energetic induced modes plasma fuelling efficiency since 2008. ELMy H-mode discharges are achieved in a lower density regime using combination of NBI heating with ECRH. power threshold is found to increase decrease density, almost independent launching order ECRH power. pedestal profiles measured. outward convection observed...
Abstract The evolutions of MHD instability behaviors and enhancement both electrostatic electromagnetic turbulence towards the plasma disruption have been clearly observed in HL-2A plasmas. Two types disruptive discharges investigated for similar equilibrium parameters: one with a distinct stage small central temperature collapse ( $$\sim$$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mo>∼</mml:mo> </mml:math> 5–10%) around 1 millisecond before thermal quench (TQ), while...
High harmonic fast waves (HHFW) are among the candidates for non-inductive current drive (CD), which is essential long-pulse or steady-state operation of tokamaks. Current driven with HHFW in EAST tokamak plasmas numerically studied. The CD efficiency found to increase non-monotonically wave frequency, and this phenomenon attributed multi-pass absorption HHFW. sensitivity value parallel refraction index launched confirmed. quasilinear effects, assessed as significant GENRAY/CQL3D package,...
The electron cyclotron wave (ECW) current drive (CD) for the HL-2A tokamak is investigated numerically with a new ray-tracing and Fokker-Planck code. code benchmarked other well-tested linear quasilinear codes then used to study on tokamak. propagation, power deposition, driven-current profiles are presented. effect of trapping also assessed. It found that effects negligible at present ECW levels when both waves injected an angle 20° plasma equatorial plane, CD efficiency saturates ∼0.029 ×...
The establishment of the current profile as in hybrid scenario is studied under condition dominant electron heating HL-2A. scenarios with injecting lower (LH) and cyclotron (EC) waves are numerical study. Carefully adjusting position non-inductive driven by two groups gyrotron, an optimized q -profile was obtained a = 3.78 weak shear region extending to ρ ∼ 0.45 (where square-root toroidal flux normalized its value at plasma boundary) low-density discharges . When 0.5 MW LH power drive mode...
The impact of fluoride-based coatings on the microstructure and mechanical integrity extruded Mg-1.0Zn-0.3Zr-1.0Y-2.0Sn alloys was assessed utilizing optical microscopy (OM), scanning electron (SEM), X-ray diffraction (XRD), immersion testing, electrochemical analysis, tensile testing. It observed that magnesium could be immersed in hydrofluoric acid (HF) for varying durations to achieve distinct thicknesses, with coating thickness stabilizing at approximately 8 μm after a 48 h period....
<sec> <title>BACKGROUND</title> Self-efficacy in mpox prevention plays a pivotal role promoting preventive behaviors by fostering sense of control and motivation, especially among men who have sex with (MSM), the population most affected many countries. </sec> <title>OBJECTIVE</title> This study aims to assess self-efficacy MSM China identify factors influencing it, using validated Mpox Prevention Self-Efficacy Scale. <title>METHODS</title> From November 2023 March 2024, nationwide...
Profile effects of the radiation, temperature, and effect atomic processes on thermal condensation instability in tokamak edge are considered. The most important influence comes from a strong due to particle transport.
By using gyro-Landau fluid transport model (GLF23), time-dependent integrated modeling is carried out TRANSP to explore the dynamic process of internal barrier (ITB) formation in neutral beam heating discharges. When current profile controlled by LHCD (lower hybrid drive), with appropriate injection, nonlinear interplay between determined gradients plasma temperature (Ti,e) and toroidal velocity (Vϕ) E×B flow shear (including q-profile) produces bifurcations, generating spontaneously a...
Separatrix of the single-null diverted plasma produced in HL-2A tokamak is determined by a fast algorithm for identifying boundary.Higher power LH wave (1.5MW) injected into with slightly asymmetric spectrum.Plasma heating electron Landau interaction results operation scenarios preferentially dominant heating.Current profile control under condition investigated numerical simulation.Due to off-axis driven current, an RS q-profile formed, and enhanced confinement regime steep temperature...
The heat-storage strategy is effective to reduce the impact of essential solar radiation fluctuations on solar-driven thermochemical hydrogen production systems. However, synergy strategies and regulation methods for processes endothermic reaction are still needed. In this paper, novel structures different encapsulated phase change material (EPCM) catalyst multi-zone filling proposed, improve dynamic performance parabolic trough receiver-reactors (PTSRRs) with methanol steam reforming...