A5083814374- Laser-induced spectroscopy and plasma
- Laser-Plasma Interactions and Diagnostics
- Laser-Matter Interactions and Applications
- Atomic and Molecular Physics
- Laser Design and Applications
- Magnetic confinement fusion research
- Plasma Diagnostics and Applications
- Magnesium Alloys: Properties and Applications
- Aluminum Alloys Composites Properties
- Dust and Plasma Wave Phenomena
- Energetic Materials and Combustion
- Mass Spectrometry Techniques and Applications
- Particle accelerators and beam dynamics
- Advanced Fiber Laser Technologies
- Fusion materials and technologies
- Ionosphere and magnetosphere dynamics
- Solar and Space Plasma Dynamics
- Advanced materials and composites
- High-pressure geophysics and materials
- Metal and Thin Film Mechanics
- Corrosion Behavior and Inhibition
- Particle Accelerators and Free-Electron Lasers
- Crystallization and Solubility Studies
- Mechanical Behavior of Composites
- Ion-surface interactions and analysis
Sanya University
2023-2025
Chinese University of Hong Kong
2025
University of Hong Kong
2025
Hainan University
2023-2025
University of Rochester
2015-2024
Energetics (United States)
2008-2024
Guangxi University
2024
Nanjing University
2024
Sichuan University of Science and Engineering
2022-2024
Tsinghua University
2024
The chemical recycling of polyolefin presents a considerable challenge, especially as upcycling methods struggle with the reality that plastic wastes typically consist mixtures polyethylene (PE), polystyrene (PS), and polypropylene (PP). We report catalytic aerobic oxidative approach for polyolefins corresponding carboxylic acids product. This method encompasses three key innovations. First, it operates under atmospheric pressure mild conditions, using O
A new hot-electron generation mechanism in two-plasmon-decay instabilities is described based on a series of 2D, long-term ($\ensuremath{\sim}10\text{ }\text{ }\mathrm{ps}$) particle-in-cell and fluid simulations under parameters relevant to inertial confinement fusion. The show that significant laser absorption occur the nonlinear stage. hot electrons are stage accelerated from low-density region high-density region. New modes with small phase velocities develop form first for electron...
In recent years, the development and utilization of saline land for rice cultivation have effectively expanded grain productivity. Rice is a salt-sensitive crop, increasing salinity problem threatens yield quality. Therefore, we conducted open field experiments to study effect on different growth stages rice. Irrigating treatment was at three stages: irrigating from regreening stage panicle initiation (S1), flowering (S2), maturity (S3). Each period lasted about 30 days. At same time, water...
We consider the possibility of using a thin plasma slab as an optical element to both focus and compress intense laser pulse. By we mean that focal length is larger than lens thickness. derive analytic formulas for spot size pulse evolution short propagating through uniform lens. The are compared simulation results from two types particle-in-cell code. simulations give greater final shorter formulas. difference arises spherical aberrations in which lead generation higher-order vacuum...
We consider how an unmagnetized plasma responds to incoming flux of energetic electrons. assume a return current is present and allow for the electrons have different transverse temperature than current. To analyze this configuration we nonrelativistic theory current-filamentation or Weibel instability rigorously current-neutral nonseparable distribution functions, f(0)(p(x), p(y), p(z)) not equal f(x)(p(x))f(y)(p(y))f(z)(p(z)). find that such functions lead lower growth rates because...
Two dimensional particle-in-cell simulations show that laser channeling in millimeter-scale underdense plasmas is a highly nonlinear and dynamic process involving longitudinal plasma buildup, hosing, channel bifurcation self-correction, electron heating to relativistic temperatures. The speed much less than the linear group velocity of laser. find low-intensity pulses are preferred minimize required energy but with an estimated lower bound on intensity I approximately 5x10(18) W/cm(2) if be...
Stimulated Raman scattering (SRS) has been explored comprehensively in planar-geometry experiments at the National Ignition Facility conditions relevant to corona of inertial confinement fusion ignition-scale direct-drive targets. These measured electron temperatures 4 5 keV simulated density scale lengths Ln 400 700 μm, and laser intensities quarter-critical up 1.5 × 1015 W/cm2 have determined SRS thresholds scaling behavior for various beam geometries. Several mechanisms, including...
When reading texts for text classification tasks, a large number of words are irrelevant, and in the traditional self-attention mechanism has problem weight distribution limitations. Therefore, model that combines an improved with Skip-GRU (Skip-grate recurrent unit) network (SA-SGRU) is proposed this paper. Firstly, Skip-GRU, enhanced GRU (Grate Recurrent Unit), used to skip content not important when only capture effective global information. Then, introduced redistribute deep sequences....
A comprehensive examination of the interaction a picosecond-long ignition pulse on high-density (40 times critical density) pellets using two-dimensional particle-in-cell model is described. The global geometry consists 50 mum diameter pellet surrounded by corona which isolated vacuum region from boundary. For cone-attached targets, as much 67% incident laser energy absorbed with 12% sent forward fast electrons in 23 degrees cone. current filaments are driven Weibel instability forward-going...
The acceleration and heating of electrons by an intense laser normally incident on a steep overdense plasma interface is investigated using the particle-in-cell code osiris. Energetic are generated laser's electric field in vacuum region within $\ensuremath{\lambda}/4$ surface. Only those which originate with sufficiently large transverse momentum can escape plasma. This mechanism relies standing wave structure created incoming reflected therefore very different for linear circularly polarized light.
It is shown that inertial confinement fusion targets designed with low implosion velocities can be shock-ignited using laser-plasma interaction generated hot electrons (hot-$e$'s) to obtain high energy gains. These designs are robust multimode asymmetries and predicted ignite even for significantly distorted implosions. Electron shock ignition requires tens of kilojoules hot-$e$'s which produced only at a large laser facility like the National Ignition Facility, laser-to-hot-$e$ conversion...
A theoretical analysis for the stimulated Raman scattering (SRS) instability driven by two laser beams with a certain frequency difference is presented. It found that strong coupling and enhanced SRS take place only when unstable regions corresponding to are overlapped in wavenumber space. Hence, threshold of beam their decoupling as function intensity plasma density. Based upon this, strategy suppress decoupled broadband lasers (DBLs) proposed. DBL can be composed tens or even hundreds...
Background Anti-hypertensive drugs have been reported to demonstrate anti-inflammatory and anti-angiogenic effects. This study aims investigate the association between anti-hypertensive prognosis of colorectal cancer (CRC) patients. Methods Clinical data 1134 CRC patients with hypertensions prescription who had undergone curative surgery in our hospital 2005 2015 were retrieved. Their survival immune cell population circulatory blood compared among different types overall Results The 5-year...
Direct seeding of rice (DSR) is a widely used method for its labor- and cost-saving advantages. However, the global intensification soil salinization presents significant challenge to food security. Increasing sowing rates common practice enhance germination under salt stress, although it leads higher seed costs. Recently, priming has emerged as an effective technique improve seedling emergence abiotic but regulation treatment on rate DSR saline conditions rarely been reported. Therefore,...