W. Q. Yang
A5101719456- Atomic and Molecular Physics
- Nuclear physics research studies
- Nuclear Physics and Applications
- Astronomical and nuclear sciences
- Quantum Chromodynamics and Particle Interactions
- Particle accelerators and beam dynamics
- Particle physics theoretical and experimental studies
- High-Energy Particle Collisions Research
- Video Surveillance and Tracking Methods
- Advanced Neural Network Applications
- GaN-based semiconductor devices and materials
- Particle Accelerators and Free-Electron Lasers
- Nuclear reactor physics and engineering
- Gait Recognition and Analysis
- Photovoltaic Systems and Sustainability
- Laser-induced spectroscopy and plasma
- Fire Detection and Safety Systems
- Muon and positron interactions and applications
- Quantum and electron transport phenomena
- Human Pose and Action Recognition
- Face recognition and analysis
- Radiation Detection and Scintillator Technologies
- Photovoltaic System Optimization Techniques
- Semiconductor Quantum Structures and Devices
Institute of Modern Physics
2019-2024
Chinese Academy of Sciences
2019-2024
Beijing University of Posts and Telecommunications
2023-2024
University of Chinese Academy of Sciences
2019
Shaanxi Research Association for Women and Family
2010
Nanjing University
1992
A new $\alpha$-emitting isotope $^{214}$U, produced by fusion-evaporation reaction $^{182}$W($^{36}$Ar, 4n)$^{214}$U, was identified employing the gas-filled recoil separator SHANS and recoil-$\alpha$ correlation technique. More precise $\alpha$-decay properties of even-even nuclei $^{216,218}$U were also measured in reactions $^{40}$Ar, $^{40}$Ca with $^{180, 182, 184}$W targets. By combining experimental data, improved reduced widths $\delta^2$ for Po--Pu vicinity magic neutron number...
Using the fusion-evaporation reaction ^{106}Cd(^{58}Ni,4n)^{160}Os and gas-filled recoil separator SHANS, two new isotopes _{76}^{160}Os _{74}^{156}W have been identified. The α decay of ^{160}Os, measured with an α-particle energy 7080(26) keV a half-life 201_{-37}^{+58} μs, is assigned to originate from ground state. daughter nucleus ^{156}W β^{+} emitter 291_{-61}^{+86} ms. newly α-decay data allow us derive reduced widths (δ^{2}) for N=84 isotones up osmium (Z=76), which are found...
The production of the χ1 and χ2 states charmonium has been observed in 300 GeV/c π±N pN interactions. fraction total inclusive J/ψ due to radiative χ decay determined be 0.40±0.04, 0.37±0.03, 0.30±0.04 for π+, π−, proton data, respectively. Total cross sections have obtained 131±18±14 188±30±21 nb/nucleon π−N interactions production. By measuring contributions both ψ’ decay, direct 97±14, 102±14, 89±12 protons, respectively.Received 21 October...
The Heavy Ion Research Facility in Lanzhou (HIRFL) is a multi-disciplinary research facility that provides heavy ion beams for physical, biomedical and material sciences. It major academic of China one the world's important centers nuclear physics accelerators. was built step by at Institute Modern Physics (IMP) over half century. first cyclotron with great assistance from former Soviet Union 1960s, newest linear accelerator tested successfully 2019. HIRFL can provide proton to Uranium...
Hadroproduction of the $\frac{J}{\ensuremath{\psi}}$ and ${\ensuremath{\psi}}^{\ensuremath{'}}$ states has been studied in 300-GeV/c proton, antiproton, ${\ensuremath{\pi}}^{\ifmmode\pm\else\textpm\fi{}}$Li interactions. Both total differential cross sections ${x}_{F}$ ${p}_{T}$ have measured for ${\ensuremath{\pi}}^{\ifmmode\pm\else\textpm\fi{}}$, antiproton The ratio to production determined four types beam particles.
A new proton-unbound isotope 204Ac was produced in the fusion-evaporation reaction Tm(40169Ca,5n)204Ac and identified via recoil-α correlation at gas-filled recoiled separators SHANS2 SHANS. The excitation function for producing measured optimal beam energy evaluated to be 212 MeV. Nineteen ER - α1 α2 α3 decay chains were observed this isotope. Based on these chains, α-particle half-life of determined 7948(15) keV 7.4−1.4+2.2 ms, respectively. Both are consistent with theoretical prediction....
Abstract Dielectronic recombination (DR) rate coefficients for carbon-like 40 Ca 14+ forming nitrogen-like 13+ have been measured using the electron–ion merged-beam technique at heavy-ion storage ring CSRm Institute of Modern Physics in Lanzhou, China. The DR energy range from 0 to 92 eV cover most resonances associated with 2 s p → and 3 core transitions (Δ N = 0). Theoretical calculations cross sections were carried out by two different state-of-the-art atomic theoretical techniques,...
The decay of 218Pa was investigated by means α and γ spectroscopy. nucleus produced in the fusion reaction 40Ar+182W separated flight gas-filled recoil separator SHANS (Spectrometer for Heavy Atoms Nuclear Structure). known decays were measured with improved precision newly assigned to be originating from ground state, which clarified ambiguities their previous assignments. In addition, a new isomeric state decaying α-particle energies 9691(15) keV, 9595(21) keV half-life 135−32+62 μs...
β decay of proton-rich nuclei plays an important role in exploring isospin mixing. The ^{26}P at the proton drip line is studied using double-sided silicon strip detectors operating conjunction with high-purity germanium detectors. T=2 isobaric analog state (IAS) 13 055 keV and two new high-lying states 380 11 912 ^{26}Si are unambiguously identified through β-delayed two-proton emission (β2p). Angular correlations protons emitted from excited populated by measured, which suggests that...
The absolute rate coefficients for dielectronic recombination (DR) of sodiumlike krypton ions were measured by employing the electron-ion merged-beam technique at heavy-ion storage ring CSRm Institute Modern Physics in Lanzhou, China. DR spectrum covers collision energy range 0--70 eV, encompassing all resonances due to $3s\ensuremath{\rightarrow}3p$ and part from $3s\ensuremath{\rightarrow}3d(\mathrm{\ensuremath{\Delta}}n=0)$ $3s\ensuremath{\rightarrow}4l(\mathrm{\ensuremath{\Delta}}n=1)$...
Abstract Heavy Ion Research Facility in Lanzhou (HIRFL) is a cyclotron, synchrotron and storage ring accelerator complex, which accelerates ions of hydrogen to uranium from low medium energy. Since the complete HIRFL-CSR project 2008, under support CAS, efforts have been put improve infrastructure for machine performance, including improvement EMC environments, power distribution stations, PS cooling water system, RF system cyclotrons adoption EPICS control etc. New generation SC ECR source...
The extremely neutron-deficient even-even uranium isotopes $^{216,218}\mathrm{U}$ were produced in the complete-fusion reactions induced by impinging $^{40}\mathrm{Ar}$ and $^{40}\mathrm{Ca}$ ions on $^{180,182,184}\mathrm{W}$ targets. Fusion evaporation residues separated flight gas-filled recoil separator SHANS (Spectrometer for Heavy Atoms Nuclear Structure) subsequently identified using recoil-$\ensuremath{\alpha}$-correlation method. improved ground-state to $\ensuremath{\alpha}$-decay...
Abstract: With the increasing popularity of photovoltaic power generation, demand for panel defect detection in industry is also increasing. Deep learning can automatically extract individual panels from images or videos, and perform task on it. Aiming at problem low accuracy existing deep learning-based methods, an improved Mask R-CNN algorithm proposed. To improve training performance, feature pyramid (FPN) structure improved, cascade network based attention guidance adopted to fuse more...