A5101616656- Magnetic confinement fusion research
- Fusion materials and technologies
- Superconducting Materials and Applications
- Laser-Plasma Interactions and Diagnostics
- Ionosphere and magnetosphere dynamics
- Particle accelerators and beam dynamics
- Plasma Diagnostics and Applications
- Vibrio bacteria research studies
- Ferroelectric and Piezoelectric Materials
- Multiferroics and related materials
- Software-Defined Networks and 5G
- Aquaculture disease management and microbiota
- Electronic and Structural Properties of Oxides
- Protein Structure and Dynamics
- Nuclear Materials and Properties
- Remote Sensing in Agriculture
- Bacterial biofilms and quorum sensing
- Remote Sensing and Land Use
- Machine Learning in Materials Science
- Enzyme Structure and Function
- Advanced Data Storage Technologies
- Caching and Content Delivery
- Remote Sensing and LiDAR Applications
- Advanced Materials Characterization Techniques
Northwest A&F University
2025
China Electronic Information Industry Development
2024
RadiaBeam Technologies (United States)
2024
Institute of Plasma Physics
2017-2021
University of Science and Technology of China
2017-2021
Chinese Academy of Sciences
2015-2021
Institute of Software
2020
Institute of High Energy Physics
2018
Institute of Remote Sensing and Digital Earth
2015
Periodic arrays of electric dipole waves in ferroelectric oxides can be stabilized at room temperature by quenching.
ABSTRACT As a universal language across the bacterial kingdom, quorum sensing signal autoinducer-2 (AI-2) can coordinate many group behaviors. However, unknown AI-2 receptors in bacteria may be more than what has been discovered so far, and there are still functions for this waiting to explored. Here, we have identified membrane-bound histidine kinase of pathogenic bacterium Vibrio furnissii , AsrK, as receptor that specifically detects under low boron conditions. In contrast with another...
A stationary edge-localized mode (ELM)-absent H-mode regime, with an electrostatic edge coherent (ECM) which resides in the pedestal region, has been achieved EAST tokamak recently. This regime allows operation of a nearly fully noninductive long pulse (>15 s), exhibiting relatively high and good global energy confinement near 1.2, excellent impurity control. Furthermore, this is mostly obtained 4.6 GHz lower hybrid current drive (LHCD) or counter-current neutral beam injection (NBI), plus...
Tungsten targets produced by the additive manufacturing (AM) method of electron-beam powder-bed fusion, or 3–D metal printing, are exposed to high flux D plasma in Pisces-RF linear device with plasma-exposed surface normal AM build direction. retention was measured thermal desorption mass spectrometry following exposure an associated ∼50eV D+ ion flux. fluence, and operational temperature, ranges 5×1024–5×1026 m−2 400–1000 K, explored. values for W compared identically exposed'conventional'...
Recent experiments from the Experimental Advanced Superconducting Tokamak (EAST) show that lower hybrid waves (LHWs) can profoundly change magnetic topology by inducing helical current filaments flowing along field lines in scrape-off layer. Here, it is investigated for first time how these perturbations caused LHWs affect edge plasma transport utilizing three-dimensional Monte Carlo code EMC3-EIRENE, both double-null and single-null configurations. The 3D structure reflected properties, due...
In this paper, we will experimentally investigate the power threshold (PL-H) in upper single null plasmas with an ITER-like tungsten divertor under different ∇B drift directions on EAST [F. Ding et al., Commissioning and PSI Behavior of ITER-Like W/Cu Divertor 22nd PSI, Rome (2016)]. The for low (L) to high (H) confinement mode has a clear positive toroidal magnetic field, BT, dependence when points toward primary X-point (B×∇B↑). A factor 2–3 increase PL-H is observed away from (B×∇B↓)....
Correlations between the edge fluctuations and pedestal evolution during relatively large localized mode (ELM) cycles at high normalized electron collisionality (νe,ped* > 1) on EAST tokamak are investigated. Not only electrostatic coherent (ECM, ∼50 kHz) low frequency magnetic (MCM, ∼32 but also a electromagnetic (HFM, >150 observed to be coexisting ELMs. After ELM crash, temperature recovered faster than density. It is found that saturation of ECM coincides more with density,...
Integrated studies of the scaling divertor power footprint widths with plasma current in Experimental Advanced Superconducting Tokamak (EAST) L-mode plasmas are carried out through experiments and modeling. The widths, which consist scrape-off layer decay length λq heat spreading S, calculated from measurements Langmuir probes (div-LPs) simulation (SOLPS). A strong inverse both (mm) S div-LP Ip (MA) is demonstrated, regressions being λq=4.37Ip−1.04±0.075 S=2.31Ip−0.997±0.047. However, a much...
The edge localized mode (ELM) has been mitigated by n=1 resonant magnetic perturbation (RMP) in EAST tokamak. turbulence characteristics and transport during the ELM mitigation have measured a series of diagnostics. coherent (ECM) with frequency about 25 kHz almost disappears when is mitigated. scrape-off layer (SOL) radial turbulent four-tip Langmuir probe mounted on manipulator at outer midplane, exhibiting strong enhancement outward particle SOL region (3-25 mm outside LCFS). This...
Abstract. Rice acreage estimation is a key aspect to guarantee food security and also important support government agricultural subsidy system. In this paper, we explored sophisticated method improve rice accuracy at county scale developed our approach with China Environment Satellite HJ-1A/B data in Hunan Province, fragmented area complex cropping patterns. Our improved the by combing supervised unsupervised classification upon decomposition of mixed pixels model, results, validated ground...
Waves in the ion-cyclotron range of frequencies (ICRF) used for plasma heating are known to interact strongly with scrape-off layer (SOL) plasma, potentially limiting ICRF performance. We present evidence direct power deposition Experimental Advanced Superconducting Tokamak (EAST) boundary, two antennas and 12 MW source support high-power long-pulse operation. By applying Retarding Field Analyzer (RFA) diagnostic, a sharp rise average collected ion parallel energy was obtained during period...
Retarding filed analyzers (RFAs) measure the ion velocity distribution in edge plasmas, leading to an estimate of temperature and space potential through curve fitting. This paper describes bi-directional RFA detector installed on Experimental Advanced Superconducting Tokamak for plasma parameter measurements. The also a technique compensate known induced noise using dummy signal line method reconstruct I–V from scanning voltage resultant current waveform. Fitting experimental data numerical...