A5053519162- Fluid Dynamics and Turbulent Flows
- Laser Design and Applications
- Spectroscopy and Laser Applications
- Computational Fluid Dynamics and Aerodynamics
- Solid State Laser Technologies
- Fluid Dynamics and Vibration Analysis
- Cold Atom Physics and Bose-Einstein Condensates
- Industrial Technology and Control Systems
- Advanced Chemical Physics Studies
- Wind and Air Flow Studies
- Acoustic Wave Resonator Technologies
- Laser and Thermal Forming Techniques
- Vibration and Dynamic Analysis
- Metallurgy and Material Forming
- Advanced ceramic materials synthesis
- Engineering Applied Research
- Gas Dynamics and Kinetic Theory
- Advanced Sensor and Control Systems
- Geophysics and Sensor Technology
- Advanced materials and composites
- Lattice Boltzmann Simulation Studies
- Advanced MEMS and NEMS Technologies
- Cavitation Phenomena in Pumps
- Differential Equations and Numerical Methods
- Heat Transfer Mechanisms
Taiyuan University of Technology
2024
Hefei National Center for Physical Sciences at Nanoscale
2023-2024
University of Science and Technology of China
2002-2024
Henan Normal University
2023
Radboud University Nijmegen
2015-2022
Radboud Institute for Molecular Life Sciences
2018-2022
Radboud University Medical Center
2018-2022
Ministry of Education of the People's Republic of China
2021
Northeastern University
2019-2021
University of Shanghai for Science and Technology
2021
Abstract Composite additives are an efficient means to improve the high‐temperature stability and slag resistance of low‐carbon MgO‐C refractories. In this work, Al 2 O 3 ‐SiC powder was firstly synthesized from electroceramics waste by carbon embedded method at 1500°C, 1550°C, 1600°C for 4 h, then as‐synthesized used as additive The effects its addition amounts 0, 2.5 wt.%, 5.0 7.5 wt.% on properties refractories were investigated in detail. It found that increasing heat treatment...
Although time-sliced imaging yields improved signal-to-noise and resolution compared with unsliced velocity mapped ion images, for finite slice widths as encountered in real experiments there is a loss of recovered intensities the slow fragments. Recently, we reported new approach that permits correction these effects an arbitrarily sliced distribution 3D charged particle cloud. This analysis (FinA) method utilizes basis functions model out-of-plane contribution given component to image...
We present the design of a Velocity Map Imaging apparatus tailored to demands high-resolution crossed molecular beam experiments employing Stark or Zeeman decelerators. The key requirements for these consist combination high relative velocity resolution large ionization volumes and broad range relatively low lab-frame velocities. SIMION software package was employed systematically optimize electrode geometries electrical configuration. final consists stack 16 tubular electrodes, electrically...
We present the first crossed beam scattering experiment using a Zeeman decelerated molecular beam. The narrow velocity spreads of NO (X2Π3/2, j = 3/2) radicals result in high-resolution images, thereby fully resolving quantum diffraction oscillations angular distribution for inelastic NO–Ne collisions and product-pair correlations radial NO–O2 collisions. These measurements demonstrate similar resolution sensitivity as experiments Stark decelerators, opening up possibilities controlled...
Abstract β‐Sialon(z = 2, Si 4 Al 2 O N 6 )/ZrN composite powders have been synthesized from coal ash, zircon, and active carbon at 1550°C for hours, 2)/ZrN/ZrON‐based ceramics (SZZCCS) prepared as‐synthesized β‐Sialon/ZrN via pressureless sintering process. The effects of temperatures (1450, 1500, 1550°C) on the phase compositions, microstructures, linear shrinkage ratio, bulk density, oxidation characteristics SZZCCS were investigated in detail, process was also analyzed. It found that...
Rotational product-pair correlations have been observed, while ND<sub>3</sub> was rotationally excited, D<sub>2</sub> simultaneously excited and de-excited.
We report on the Zeeman deceleration of ground-state NH radicals, using a decelerator that consists 100 pulsed solenoids and permanent hexapoles. Packets state-selected ($X\,^3Σ^-$, N=0, J=1) radicals are produced with final velocities ranging between 510 m/s 150 m/s. The velocity distributions packets exiting probed map imaging detection. present new 1+2' resonance-enhanced multiphoton ionization scheme for NH, allows detection under ion recoil-free conditions. Zeeman-decelerated in...
We present state-to-state differential cross sections for collisions of NO molecules (X2Π1/2, j = 1/2f) with para-H2 and ortho-D2 molecules, at a collision energy 510 450 cm–1, respectively. The angular scattering distributions various final states the radical are measured high resolution using crossed molecular beam apparatus that employs combination Stark deceleration velocity map imaging. Rotational rainbows as well diffraction oscillations fully resolved in images. observed excellent...
We present a combined experimental and theoretical study of state-to-state inelastic scattering NO(X<sup>2</sup>Π<sub>1/2</sub>, <italic>j</italic> = 1/2f) with O<sub>2</sub>(X<sup>3</sup>Σ<sub>g</sub><sup>−</sup>) molecules at collision energy 480 cm<sup>−1</sup>, focusing in particular on the observation interpretation correlated excitations both NO O<sub>2</sub>.
A hybrid scheme, based on the high order nonlinear characteristicwise weighted essentially nonoscillatory (WENO) conservative finite difference scheme and spectral-like linear compact has been developed for capturing shocks strong gradients accurately resolving fine scale structures efficiently hyperbolic conservation laws. The key issue in any is design of an accurate, robust, efficient shock detection algorithm which capable determining smoothness solution at given grid point time. An...
A temporal linear instability analysis by the normal mode method and a direct numerical simulation (DNS) are performed to investigate stability evolution of swirling jet with centrifugally unstable Taylor vortex-like azimuthal velocity. marked character is that Kelvin–Helmholtz modes dominant at lower axial wave numbers centrifugal higher numbers. The results DNS show early stage agrees well predicted theory. In nonlinear stage, velocity profile has important influences on dynamics. For...
The aim of this work is to develop a new scheme for solving the pure advection equation. This formulated within perturbation finite-difference context not only conserves symplecticity but also preserves numerical dispersion relation employed symplectic integrator second-order accuracy in time enables calculation long-time accurate solution sense that Hamiltonian conserved at all times. generalized high-order spatially difference optimizes phase through minimization between and exact...
In order to solve the problem of pollution in strip steel pickling process, we propose a new process wet shot blasting, adding water system conventional blasting equipment.Through finite element software ANSYS/LS-DYNA, conduct dynamic simulation dry and analyze relationship parameters on von misses stress, effective strains steel.The verification by this experiment is that reduces stress effectively time ensuring strain, which guarantees consistency properties different areas surface.
A new oxygen–iodine medium gain model is developed to include pumping and deactivation of the upper laser levels iodine atoms, hyperfine translation relaxation, as well flowing effect. The rate equations for a supersonic cw (COIL) are described when stimulated by single-mode field. general solution self-consistency integral equation obtained. result shows that saturation behaviour in low pressure COIL differs from both inhomogeneous homogeneous broadening, exhibits an `anomalous' phenomenon.