Y. Zhu

ORCID: 0000-0002-4275-0809
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About
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Research Areas
  • Magnetic confinement fusion research
  • Particle accelerators and beam dynamics
  • Ionosphere and magnetosphere dynamics
  • Fusion materials and technologies
  • Superconducting Materials and Applications
  • Geotechnical Engineering and Underground Structures
  • Plasmonic and Surface Plasmon Research
  • Air Traffic Management and Optimization
  • Geomagnetism and Paleomagnetism Studies
  • Nuclear reactor physics and engineering
  • Geotechnical and Geomechanical Engineering
  • Advanced Algorithms and Applications
  • Inflammatory Biomarkers in Disease Prognosis
  • Simulation Techniques and Applications
  • GNSS positioning and interference
  • Adipokines, Inflammation, and Metabolic Diseases
  • Laser-Plasma Interactions and Diagnostics
  • Advanced Technologies and Applied Computing
  • Near-Field Optical Microscopy
  • Nutritional Studies and Diet
  • Energy Efficient Wireless Sensor Networks
  • Target Tracking and Data Fusion in Sensor Networks
  • Optical Polarization and Ellipsometry
  • Civil and Geotechnical Engineering Research
  • Numerical methods in engineering

Affiliated Hospital of Nantong University
2024

Nantong University
2024

Southwestern Institute of Physics
2021-2023

Shanghai Normal University
2013-2022

Jiangsu Normal University
2022

University of California, Davis
2018-2021

Xidian University
2012-2015

This paper reports verification and validation of linear simulations Alfven eigenmodes in the current ramp phase DIII-D L-mode discharge #159243 using gyrokinetic, gyrokinetic-MHD hybrid, eigenvalue codes.Using a classical fast ion profile, all simulation codes find that reversed shear (RSAE) are dominant instability.The real frequencies from have coefficient variation less than 5% for most unstable modes with toroidal mode number n = 4 5.The simulated RSAE agree experimental measurements if...

10.1088/1741-4326/ab0c38 article EN Nuclear Fusion 2019-03-04

Synthetic diagnostics are aimed at simulating the response of diagnostic systems under actual experimental scenarios and key to drawing quantitative inferences from data. The synthetic Electron Cyclotron Emission Imaging (ECEI) is suitable for evaluation improvement arising application Field Curvature Adjustment (FCA) lenses in design upgraded Experimental Advanced Superconducting Tokamak (EAST) tokamak ECEI system. In previous systems, a curved image plane inevitable optics comprising only...

10.1063/1.5035426 article EN Review of Scientific Instruments 2018-10-01

Abstract Significant noise suppression for magnetohydrodynamics (MHD) mode characterization in the spatial and spectral domain is achieved by processing two-dimensional (2D) electron cyclotron emission imaging (ECEI) data with a one-dimensional (1D) ECEI technique using short time window ( <?CDATA $1\;{\text{ms}}$?> <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" overflow="scroll"> <mml:mn>1</mml:mn> <mml:mrow> <mml:mtext>ms</mml:mtext> </mml:mrow> </mml:math> ). The applied to...

10.1088/1361-6587/abe9f2 article EN Plasma Physics and Controlled Fusion 2021-02-25

A synthetic electron cyclotron emission (ECE) diagnostic is used to interpret ECE signals from preset plasma equilibrium profiles, including magnetic field, density, and temperature. According the simulation results, temperature (Te) profile covering harmonic overlap region can be obtained by receiving at high field side (HFS) of HL-2M plasma. The third low (LFS) cannot pass through second resonance layer HFS unless optical thickness (τ) becomes gray (τ ≤ 2). In addition, impact relativistic...

10.1063/5.0098907 article EN publisher-specific-oa Review of Scientific Instruments 2022-08-01

According to the electromagnetic scattering of two spheres, incident on-axis Gaussian beam is expanded in terms spherical vector wave functions (SVWFs), and shape coefficients are obtained by applying localized approximation method. Using addition theorem, interaction fields chiral spheres internal also SVWFs. Based on continuous tangential boundary conditions, scattered field derived analytically. Utilizing Maxwell's stress tensor integration technique, optical binding force between...

10.1016/j.proeng.2015.01.152 article EN Procedia Engineering 2015-01-01

High confinement mode plasma experiments with Type-I edge localized modes (ELMs) have been carried out on HL-2A tokamak. With neutral beam injection and lower hybrid current drive heating, a quasi-coherent (QCM) located at pedestal region has observed, which exists during the ELM-free stage till first ELM burst. Analysis based density magnetic fluctuations revealed that QCM propagating radially outward is electrostatic in nature whose radial wavenumber kr∼0.5 cm−1 as well poloidal around...

10.1063/5.0161924 article EN Physics of Plasmas 2023-11-01

The Corona Virus Disease 2019 epidemic broke out in 2020, and digital technologies pervaded all aspects of people’s lives, resulting a significant shift how education is delivered. importance role online learning are highlighted this paper, which examines the challenges posed by sudden crisis to higher institutions, analyses factors that universities must consider order effectively create flexible pathways, institutions. In postepidemic era, use Internet teaching platforms university faculty...

10.1155/2022/5301459 article EN Security and Communication Networks 2022-05-28

Abstract The role of a series quasi-coherent modes (QCMs) on the turbulence properties has been investigated during Type-III ELMs under HL-2A high confinement mode (H-mode) scenarios. QCMs are essentially electrostatic and appear inter-ELM periods, with frequency ranging from 20 kHz to 60 kHz. These localized in pedestal region related saturation density gradient pedestal. Nonlinear couplings between ambient have observed also verified through envelope modulation by radial electrical field...

10.1088/1741-4326/ad52a8 article EN cc-by Nuclear Fusion 2024-05-31

10.3969/j.issn.1000-5137.2016.05.002 article EN DOAJ (DOAJ: Directory of Open Access Journals) 2016-10-01

10.3969/j.issn.1000-5137.2016.01.002 article EN DOAJ (DOAJ: Directory of Open Access Journals) 2016-02-01

Improving the energy efficiency and balancing distribution are two important aspects to prolong lifetime of a wireless sensor network. This paper proposes energy-cost-per-useful-bit (ECPUB) metric for evaluating aforementioned aspects. It takes advantage concept "utility" in economics, consumption transmitter receiver, residual energy, data quantity that sink needs receives taken into consideration. The impact imbalance node discussed this paper. To verify ECPUB, we apply it LEACH protocol...

10.1109/cybermatics_2018.2018.00289 article EN 2018-07-01

Supersonic molecular beam injection is a robust alternative to control the particles in fusion plasma devices. It widely used many experimental studies on physics. Direct visualization of makes it possible for precise optimization characteristics. However, normal system does not fully meet requirements measurement distribution low gas density vacuum environment. This paper reports newly designed multi-pass without changing schlieren mirrors. make light passing testing area several times,...

10.1088/1748-0221/16/10/p10013 article EN cc-by Journal of Instrumentation 2021-10-01
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