A5100601222- Topological Materials and Phenomena
- Quantum Mechanics and Non-Hermitian Physics
- Satellite Communication Systems
- UAV Applications and Optimization
- Advanced Wireless Communication Technologies
- Metamaterials and Metasurfaces Applications
- Image and Signal Denoising Methods
- Quantum chaos and dynamical systems
- Antenna Design and Optimization
- Antenna Design and Analysis
- Advanced Antenna and Metasurface Technologies
- Acoustic Wave Phenomena Research
- Non-Destructive Testing Techniques
- Magnetic Bearings and Levitation Dynamics
- Electromagnetic wave absorption materials
- Advanced Sensor and Control Systems
- Metal Alloys Wear and Properties
- Nuclear Engineering Thermal-Hydraulics
- Biofield Effects and Biophysics
- Transport Systems and Technology
- Electromagnetic Compatibility and Measurements
- Force Microscopy Techniques and Applications
- Geophysics and Sensor Technology
- Seismic Waves and Analysis
- Wireless Body Area Networks
State Key Laboratory of Quantum Optics and Quantum Optics Devices
2021-2025
Shanxi University
2021-2025
Shanxi University of Traditional Chinese Medicine
2021-2025
Zhengzhou University
2024-2025
Xi’an University of Posts and Telecommunications
2022-2024
China University of Mining and Technology
2023
Nanchang Hangkong University
2022
Xi'an Technological University
2020-2022
University of Science and Technology Beijing
2022
Chang'an University
2019
Continuum Landau modes - predicted recently in a non-Hermitian Dirac Hamiltonian under uniform magnetic field are continuous bound states with no counterparts Hermitian systems. However, they have still not been confirmed experiments. Here, we report an experimental observation of continuum electric circuits, which the is simulated by non-reciprocal hoppings and pseudomagnetic introduced inhomogeneous complex on-site potentials. Through measuring admittance spectrum eigenstates, successfully...
The discovery of topologically protected boundary states in topological insulators opens a new avenue toward exploring novel transport phenomena. one-way feature against disorders and impurities prospects great potential applications electronic classical wave devices. Particularly, for the 3D higher-order insulators, it can host hinge states, which allow energy to along channels. However, have only been observed single hinge, natural question arises: whether exist simultaneously on all three...
Non-Hermitian skin localization, as a hallmark feature unique to non-Hermitian systems, has attracted enormous interests. Recent theoretical work reveals that the coupling between nonreciprocal chain with skin-localized states and Hermitian extended can induce phase pseudo-mobility-edge (PME) under weak interchain couplings. However, such phenomenon remains be confirmed in experiments. Here, we experimentally realize PME by designing hybridized circuit ladder. Through measuring admittance...
A two-dimensional topological metal with anti-helical-like edge states has been predicted recently but not confirmed experimentally. In this paper, we report an experimental realization of in acoustic metamaterial by introducing a time-reversal symmetry protected square lattice. The appearing gapless bulk bands are observed measuring the projected dispersions and pressure field distributions. Moreover, these propagate same direction when simultaneously exciting two sources fixed phase...
Acoustic topological insulators that host the boundary states, which is insensitive to defects and disorder, have become an important research topic provide completely new ways manipulate acoustic waves. However, most of states generally appear in a single or two band gaps, hindering applications multiband devices. Compared previous work, this paper, we experimentally observe multiple four including end (corner) one-dimensional (two-dimensional) phononic crystals, based on quartic-root...
Conventional wavelet transform (WT) filters have less effect on de-noising and correction of a north-seeking gyroscope sensor exposed to vibration, since the optimal decomposed level for is difficult determine. To solve this problem, paper proposes an optimized WT filter which suited magnetic levitation (GAT). The proposed method was tested equivalent mock-up network tunnels associated with Hong Kong‒Zhuhai‒Macau Bridge. gyro-observed signals vibration were collected in our experiment,...
In conventional weapon test field, the parameter of projectile explosion position is an important index to measure control ability and damage efficiency fuze. Due random deviation gun firing difference detection performance fuze itself, uncertain relatively scattered in terminal ballistic, which easy miss information. order obtain parameters large area this paper constructs a testing system with distributed multiple acoustic sensor basic arrays, establishes calculation model by array,...
Abstract In order to improve the effect of image acquisition under condition low illumination, a illumination enhancement algorithm based on multi-feature fusion is adopted in this paper. algorithm, information extracted by bilateral filtering, and parameters are processed adaptive gamma correction limited contrast histogram equalization algorithm. The final obtained feature weighted original parameters. RGB combining reflection parameters, realized. experimental results show that used paper...
The tool swept volume has been generally applied in multi-axis NC machining simulation and verification.For the characteristic actual condition, a general cutter model was built, based on that new method to simulate of milling represented.The geometric is translated sphere with Guass Mapping, tangency function vector obtained.Combining tangent above, enveloping line could be acquired.Then built.This paper also solves self intersection volume.Finally verifies validity this method.
In this study, the cold rolling test on quenched-tempered hot working die steel pipe with an outer diameter/thickness ratio of no greater than 3 was performed. The evolutionary trend microstructure examined by a combination microscope, SEM, and EBSD tests. effect feed rate inner wall roughness rolled analyzed means white light interference. According to experimental results, maximum normal pressure per unit area increases from 1046.7 MPa 1113.2 rise in 1 mm/stroke 6 mm/stroke. Meanwhile,...
In order to accurately calculate the projectile explosion position, this paper takes five acoustic sensors as a basic array, and proposes test method for position based on acousto-optic combined detection of triangular array composed by three arrays. The photoelectric sensor is synchronous acquisition reference source, its coordinate origin system. Combining with spatial layout we derive calculation model parameters each array; use wavelet transform analysis filter signal, cross-correlation...