A5020126362- Magnetic confinement fusion research
- Ionosphere and magnetosphere dynamics
- Superconducting Materials and Applications
- Laser-Plasma Interactions and Diagnostics
- Particle accelerators and beam dynamics
- ECG Monitoring and Analysis
- Non-Invasive Vital Sign Monitoring
- Fusion materials and technologies
- HVDC Systems and Fault Protection
- Soil and Unsaturated Flow
- Climate change and permafrost
- Concrete and Cement Materials Research
- EEG and Brain-Computer Interfaces
- Arctic and Antarctic ice dynamics
- Engineering and Test Systems
- Quality and Safety in Healthcare
- Geotechnical Engineering and Soil Stabilization
- Cryospheric studies and observations
- High-Voltage Power Transmission Systems
- Machine Fault Diagnosis Techniques
- Atomic and Subatomic Physics Research
- Grouting, Rheology, and Soil Mechanics
- Heart Rate Variability and Autonomic Control
Southwest Jiaotong University
2014-2024
Chinese Academy of Sciences
2016-2021
Lanzhou University
2016-2021
Suzhou Institute of Biomedical Engineering and Technology
2020-2021
Huazhong University of Science and Technology
2018
Institute of Plasma Physics
2016
Shanghai Electric (China)
2014
Southwestern Institute of Physics
2007
Abstract By using the recently developed Thomson scattering diagnostic, pedestal structure of H-mode with neutral beam injection (NBI) or/and lower hybrid wave (LHW) heating on EAST (Experimental Advanced Superconducting Tokamak) is analyzed in detail. We find that a higher ratio power NBI to total and will produce large regular different edge-localized mode (ELM), small irregular ELM. The experiments show mean width has good correlation <?CDATA $\beta _{\text{p},\text{ped}}^{0.5}$ ?>...
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...
A dramatic increase of density gradient and a slight decrease electron temperature were observed in the pedestal just prior to each onset series ELM bursts. An inward particle flux induced by quasi-coherent mode was found be responsible for such changes. The characteristics mode, including frequency, wave vector, propagation direction velocity identified. nonlinear three-wave coupling is plausible mechanism generation mode. Decoupling transport from energy discovered. always much higher than...
Heart rate is one of the most important diagnostic bases for cardiovascular disease. This paper introduces a deep autoencoding strategy into feature extraction electrocardiogram (ECG) signals, and proposes beat-to-beat heart estimation method based on convolution Gaussian mixture clustering. The high-level heartbeat features were first extracted in an unsupervised manner by training convolutional autoencoder network, then adaptive clustering was applied to detect locations from features,...
Abstract Isotope effects have been investigated in Neutral Beam Injection (NBI) heated plasmas on the Large Helical Device with similar operational parameters between Hydrogen (H) and Deuterium (D) plasmas. Experimental results show that global energy confinement has no significant dependence isotope mass under discharge conditions nearly same heating power, line-averaged density ( <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" overflow="scroll"> <mml:mrow> <mml:msub> <mml:mover>...
In this paper, we proposed an effective method to obtain the R wave concept estimate heart rate from electrocardiogram signals produced by a wearable electro-cardiogram(ECG) device. The multiple instance adaptive co-sine/coherent estimator(MI-ACE) is learning that can learn target imprecisely labeled data. However, concepts estimated MI-ACE are dependent on initialization strategy of MI-ACE. Thus, estimation results undetermined with different initialization. Evolutionary algorithm global...
The influence of the content matekaolin powder and fly ash in cement on controlling ASR was evaluated using Accelerated Mortar Bar Test (AMBT). Replacing with to extent 5%,10%,15%,20%,25%,and 10%,20%,30%,35%,40%, 45% respectively. result show that both can control Alkali-aggregate activity but different degrees. Small amount metakaolin exerts significant influence, whereas only when proportion is up 35%, it effectively. effect mechanism extension glass aggregate studied by means SEM analysis.
Abstract In the Experimental Advanced Superconducting Tokamak high-confinement mode plasmas, a low-frequency n = 1 magnetic coherent with frequency f 20–50 kHz and high-frequency electromagnetic characteristics (HFEM, ∼ 280 kHz) have been found between type-I edge localized modes (ELMs). Both HFEM are located in pedestal region, but their radial locations seem to be somewhat different. It seems from present data that is closer maximum density gradient while may separatrix. The experimental...
Radar chart is an important visual decision-making tool in prognostics and health management (PHM) it can help administrators make the right judgments. We presented improved performance degradation radar algorithm to enrich tools this paper. Our improves feature extraction ability of weak fault signals from machine achieve comparison assessment machine. The effectiveness validated by experiments rolling element bearings.
A Q-band X-mode homodyne microwave reflectometry has been developed for the measurement of edge electron density profile on Joint TEXT tokamak (J-TEXT). voltage controlled oscillator (VCO) with a frequency quadrupler is used as source. An arbitrary waveform generator (AWG) adopted to control sweeping period (20 μs) VCO. Homodyne method chose simplify structure hardware circuit. In addition, single antenna scheme which using directional coupler realize sharing an transmitting and receiving...