A5008064869- Solar and Space Plasma Dynamics
- Adaptive optics and wavefront sensing
- Remote Sensing and Land Use
- Medical Imaging Techniques and Applications
- Meteorological Phenomena and Simulations
- Stellar, planetary, and galactic studies
- Radiation Detection and Scintillator Technologies
- Gamma-ray bursts and supernovae
- Astronomy and Astrophysical Research
- Ionosphere and magnetosphere dynamics
- Astrophysics and Star Formation Studies
- Precipitation Measurement and Analysis
- Atmospheric Ozone and Climate
- Advanced Radiotherapy Techniques
- Environmental and Agricultural Sciences
- Ocean Waves and Remote Sensing
- Technology Use by Older Adults
- Yeasts and Rust Fungi Studies
- Climate variability and models
- Atmospheric and Environmental Gas Dynamics
- Advanced Fiber Laser Technologies
- Plant Pathogens and Fungal Diseases
- Orbital Angular Momentum in Optics
- Optical Coherence Tomography Applications
- Hydrology and Drought Analysis
Tsinghua University
2010-2024
Experimental Center of Forestry in North China
2014
Chinese Academy of Sciences
2011-2013
Institute of Optics and Electronics, Chinese Academy of Sciences
2011
State Key Joint Laboratory of Environment Simulation and Pollution Control
2010
To characterize the bacterial community dynamics over 1 year in two full-scale wastewater treatment systems operated under constant conditions and exhibiting stable performance.Functional stability was defined quantified by effluent concentration of biological oxygen demand, total nitrogen ammonia. Community were investigated using specific PCR followed terminal restriction fragment length polymorphism (T-RFLP) 16S rRNA gene. The T-RFLP results indicated that during period functional...
A simple but effective decoupling control algorithm based on Zernike mode decomposition for adaptive optics systems with dual deformable mirrors is proposed. One of the two characterized a large stroke (woofer) and other high spatial resolutions (tweeter). The works as follows: wavefront gradient vector decoupled using modes at first, then woofer generated low order coefficients to eliminate modes. At same time tweeter reset by constraint matrix in avoid coupling error accumulation....
We report the serendipitous discovery of a faint (M UV > −12.2), low-metallicity (Z ∼ 0.02 Z⊙) ionizing source, dubbed T2c, with spectroscopic redshift z = 6.146. T2c is part larger structure amplified by Hubble Frontier Field galaxy cluster MACSJ0416 and was observed James Webb Space Telescope (JWST) NIRSpec integral field unit. Stacking short-wavelength NIRCam data reveals no stellar continuum detection down to magnitude limit m ≃ 31.0 (3 σ ). However, prominent H β , [O III ] λ 4959,...
Multiple lobes generally exist in the far-field of high-order mode Hermite–Gaussian beams owing to inherent phase shifts a half wave, leading deteriorated brightness. We present transformation intensity distributions with deformable mirror, which is able effectively enhance power concentrations by compensating for both and aberrations. Experiments TEM10, TEM20 TEM30 demonstrate that proposed method can form single strong lobe far-field, peak intensities are considerately improved.
Due to the unique topography and geographical location, severe snowfall is main disastrous weather in winter Hunan Province of China. Based on daily precipitation data from 1961 2021, regional heavy processes are classified by using synoptic diagnostic method. In addition, water vapor transport characteristics typical analyzed hybrid single-particle Lagrangian integrated trajectory (HYSPLIT) air mass backward model. Then, responses differences under different situations discussed. The...
Based on surface rain-gauge data, Doppler radar products, the National Center for Environmental Prediction (NCEP) reanalysis data and other multi-source datasets, two regional rainstorm processes caused by Southwest China vortex (SCV) in June, 2015 are diagnosed analyzed from aspects of water vapor condition, dynamic thermodynamic mechanisms, causes rainstorms discussed. The results show that belong to SCV rainstorm, there is southwest jet middle lower levels. high-value area flux...
Abstract In early 2022, there were four low‐temperature weather processes with rain and snow in Hunan Province, China. Two occurred on January 28–29 (referred to as the “0128” process) February 6–7 “0206” process), they have overlapping areas of heavy snowfall high intensity short‐term snowfall. Multi‐source observation data National Centers for Environmental Prediction (NCEP) reanalysis are used analyze characteristics circulation background mesoscale. addition, causes under influence...
Portable gamma cameras are valuable tools for intraoperative imaging guidance. However, existing primarily rely on mechanical collimation, resulting in limited clinical impact and sensitivity, particularly during real-time or short-time-framed imaging. Additionally, high-energy radionuclides is often necessary certain applications, but the stronger collimator penetration results degraded performance.In this work, we develop a novel camera prototype that consists of magic-cube detector...
Gamma cameras have a growing presence in various intraoperative applications, but current designs often suffer from drawbacks such as weight and low imaging speed. These limitations stem the mechanical collimator used for imaging, which adds significant impedes sensitivity. To address these challenges, we recently proposed novel gamma camera design featuring 3-D mosaic patterned self-collimation detector. In this work, aim to develop portable using evaluate its performance representative...
Quantitative analysis the role of turbulence in magnetic self-generating and organization, plasma self-feeding sustaining, which closely related to evolution neutral points flux ropes, is most important understand energy release-conversion, heating, charged particles energization acceleration 3D large temporal-spatial scale turbulent reconnection (LTSTMR; observed current sheets thickness electron characterize length, Larmor radius for low- inertial length high-, ratio 10E10 ~ 10E11 order;...