A5100607379- Particle physics theoretical and experimental studies
- Quantum Chromodynamics and Particle Interactions
- High-Energy Particle Collisions Research
- Dark Matter and Cosmic Phenomena
- Particle Detector Development and Performance
- Black Holes and Theoretical Physics
- Astrophysics and Cosmic Phenomena
- Radiation Detection and Scintillator Technologies
- ZnO doping and properties
- Ga2O3 and related materials
- Neutrino Physics Research
- Particle Accelerators and Free-Electron Lasers
- Cosmology and Gravitation Theories
- Magnetic properties of thin films
- Computational Physics and Python Applications
- Magnetic Properties and Applications
- Ferroelectric and Piezoelectric Materials
- Copper-based nanomaterials and applications
- Boron and Carbon Nanomaterials Research
- Magnetic confinement fusion research
- GaN-based semiconductor devices and materials
- Nuclear Physics and Applications
- Metal and Thin Film Mechanics
- Electronic and Structural Properties of Oxides
- Metallic Glasses and Amorphous Alloys
Institute of High Energy Physics
2011-2024
Chinese Academy of Sciences
2001-2024
Development Research Center
2024
Leshan Normal University
2024
China National Petroleum Corporation (China)
2024
Dalian Institute of Chemical Physics
2024
University of Warwick
2022-2023
University of Science and Technology of China
2008-2022
Central China Normal University
2017-2022
Southwestern Institute of Physics
2022
Reasoning is fundamental to human intelligence, and critical for problem-solving, decision-making, thinking. refers drawing new conclusions based on existing knowledge, which can support various applications like clinical diagnosis, basic education, financial analysis. Though a good number of surveys have been proposed reviewing reasoning-related methods, none them has systematically investigated these methods from the viewpoint their dependent knowledge base. Both scenarios bases are...
Accurate prediction of distributed photovoltaic (DPV) power generation is crucial for stable grid operation, yet existing methods struggle with the non-linear, intermittent nature solar power, and traditional machine learning models face hyperparameter selection overfitting challenges. This study developed a highly accurate DPV method by optimizing Long Short-Term Memory (LSTM) network's hyperparameters using an improved Multi-Objective Particle Swarm Optimization (MO-PSO) algorithm. A...
Thirdhand tobacco smoke consists of substances remaining on the surfaces or in dust areas where people have smoked. While previous studies demonstrated presence nicotine and various other constituents smokers’ homes, none has investigated tobacco-specific carcinogens. We used liquid chromatography-tandem mass spectrometry to analyze surface samples from both homes smokers nonsmokers for powerful lung carcinogen 4-(methylnitrosamino)-1-(3-pyridyl)-1-butanone (NNK). positively identified NNK...
The High Energy cosmic-Radiation Detection (HERD) is a future space experiment which will be installed on the China’s Space Station around 2027. main goal of measurement cosmic rays up to energies are not explored by instruments currently operating in space, particular protons with PeV, nuclei hundreds TeV per nucleon and electrons tens TeV. HERD consist silicon charge detectors, anti-coincidence scintillators, scintillating fiber trackers, transition radiation detector calorimeter. latter...
Abstract The measurement of cosmic-ray individual spectra provides unique information regarding the origin and propagation astro-particles. Due to limited acceptance current space experiments, protons nuclei around “knee” region (∼ 1 PeV) can only be observed by ground based experiments. Thanks an innovative design, High Energy cosmic-Radiation Detection (HERD) facility will allow direct observation up this energy region: instrument is mainly on a 3D segmented, isotropic homogeneous...
The HERD experiment is a future for the direct detection of high-energy cosmic rays and to be installed on Chinese space station in 2027. main objectives are first measurement knee ray spectrum, extension electron+positron flux up tens TeV, gamma astronomy, search indirect signals dark matter. component detector an innovative calorimeter composed about 7500 LYSO scintillating crystals assembled spherical shape. Two independent readout systems scintillation light will each crystal:...
Abstract Collapse of the edge flow shear as line-averaged density approaches Greenwald limit has been observed a precursor to enhanced particle flux characteristic proximity regime. Here, we report use biased electrode sustain layer in high discharges, which would otherwise collapse. A stable increase is along with strong density. These experiments were carried out on J-TEXT tokamak. The Reynolds stress at enhanced, and zonal sustained, while perturbation levels, turbulence internal energy...
Abstract The High Energy cosmic-Radiation Detection facility (HERD) is a calorimetry-based cosmic-ray detection mission on board China space station. A side-on transition radiation detector (TRD) focuses the TeV energy range calibration of HERD calorimeter with an error less than 10% by measuring Lorentz factor γ high-energy protons. TRD prototype was developed for performance study and tested Deutsches Elektronen-Synchrotron electron beams. In this paper, Monte Carlo simulation based GEANT4...
Abstract A novel 3-D calorimeter, composed of about 7500 LYSO cubes, is the key and crucial detector High Energy cosmic-Radiation Detection (HERD) facility to be installed onboard China Space Station. deposition from cosmic ray in each cube translated by multiple wavelength shifting (WLS) fibers for multi-range data acquisition real-time triggering. In this study, various methods surface finish encapsulation were investigated optimize amplitude WLS fiber end with aim improving...
The molten salt synthesis (MSS) method is utilized to synthesize the anisotropic platelet Sr 3 Ti 2 O 7 (S3T2) single‐crystal particles. aim of this study identify essence crystal growth and guide SrTiO crystals as well various technologically important materials. Based on results X‐ray diffraction, scanning electron microscopy, high‐resolution transmission formation mechanism conforms a nucleation–structure rearrangement–dissolution–diffusion in situ epitaxial model. First, SrCO reacts with...
Structural stability, electronic, and optical properties of InN under high pressure are studied using the first-principles calculations. The lattice constants electronic band structure found consistent with available experimental theoretical values. wurtzite-to-rocksalt structural transition is 13.4 GPa, which in an excellent agreement most recent characteristics reproduce data thus justifying feasibility our predictions at pressures.
The annealing-temperature-dependent change in the exchange bias and coercivity is investigated Fe50Mn50/Ni80Fe20 films. It interesting to note that, as annealing temperature increases, first decreases, then finally decreases for case of at higher temperature. will increase upon moderate temperature, but decrease higher-temperature annealing. We can qualitatively interpret magnetic properties with connection microstructures by x-ray scattering technologies. results show that both large field...
Transition Radiation (TR) plays an important role in particle identification high-energy physics and its characteristics provide a feasible method of energy calibration the range up to 10 TeV, which is interest for dark matter searches cosmic rays. In Detector (TRD), TR signal superimposed onto ionization loss induced by incident charged particles. order make stand out from background significant way, we optimized both radiators detector. We have designed new prototype regular radiator...
Monosized strontium titanate (SrTiO 3 ) particles with tailored morphologies have been successfully synthesized using ultrasound irradiation. Characterization techniques such as X‐ray powder diffraction analysis, scanning electron microscopy, energy‐dispersive analysis of X‐rays, and laser particle size were used to investigate the products. The results showed that all as‐prepared powders a cubic SrTiO structure. Reaction conditions reactant concentrations, sonication time, power found...
HERD is a future experiment for the direct detection of high energy cosmic rays. The instrument based on calorimeter optimized not only good resolution but also large acceptance. Each crystal composing equipped with two read-out systems: one wavelength-shifting fibers and other photodiodes different active areas assembled in monolithic package. In this paper, we describe photodiode system, focusing experimental requirements, design estimated performances. Finally, show how these features...