A5007197550- Acoustic Wave Phenomena Research
- Metamaterials and Metasurfaces Applications
- Photonic Crystals and Applications
- Plasmonic and Surface Plasmon Research
- Nonlinear Photonic Systems
- Energy Harvesting in Wireless Networks
- Molecular Communication and Nanonetworks
- Mechanical and Optical Resonators
- Topological Materials and Phenomena
- Wireless Body Area Networks
- Advanced Sensor and Energy Harvesting Materials
- Photonic and Optical Devices
- Noise Effects and Management
- Hearing Loss and Rehabilitation
- Ultrasonics and Acoustic Wave Propagation
- Antenna Design and Analysis
- Advanced Fiber Optic Sensors
- Acoustic Wave Resonator Technologies
- Innovative Energy Harvesting Technologies
- Conducting polymers and applications
- Quantum Mechanics and Non-Hermitian Physics
- Intracranial Aneurysms: Treatment and Complications
- Music Technology and Sound Studies
- Advanced Materials and Mechanics
- Aerodynamics and Acoustics in Jet Flows
University of Missouri
2019-2024
BOE Technology Group (China)
2021-2024
Lanzhou Institute of Chemical Physics
2024
Chinese Academy of Sciences
2024
China Three Gorges University
2022-2023
Qingdao Center of Resource Chemistry and New Materials
2023
Shanghai University
2017-2021
Zhejiang University
2021
Chongqing University of Technology
2021
Tongji University
2015-2019
The reported prevalence of unruptured cerebral aneurysms (UCAs) varies widely.To measure the UCAs by using 3-dimensional time-of-flight magnetic resonance angiography in adults aged 35 to 75 years.Cross-sectional study done between June 2007 and 2011.Two communities chosen at random from 2 districts (1 urban 1 suburban) Shanghai, China.4813 years.Three-dimensional angiography, interpreted 3 observers blinded participants' information, was used identify location size estimate overall,...
Recently, sound attenuation with ventilation is highly needed in many practical applications. In this study, we report on a subwavelength acoustic silencer, named double-layer silencer (DAS), based compactly assembled slit-type Helmholtz resonators (SHRs) for low-frequency broadband insulation while preserving ventilation. A simple yet insightful theoretical model first established to characterize the performance terms of transmission loss (TL) and used microstructure designs DAS. The...
Modern technological advances allow for the study of systems with additional synthetic dimensions. Higher-order topological insulators in states matters have been pursued lower physical dimensions by exploiting phase transitions. While can be rendered photonics and cold atomic gases, little to no work has succeeded acoustics because acoustic wave-guides cannot weakly coupled a continuous fashion. Here, we formulate theoretical principles manufacture crystals composed arrays cavities strongly...
Abstract Multifunctional metamaterials (MFMs) capable of energy harvesting and vibration control are particularly attractive for smart structures, wearable/biointegrated electronics, intelligent robotics. Here, a novel MFM based on triboelectric nanogenerators (TENGs), which can harvest environmental reduce simultaneously, is reported. The unit cells the consist local resonator, an integrated contact‐ separation mode TENG, spiral‐shaped connecting beams. A multiphysics theoretical model...
Elastic metasurfaces have become one of the most promising platforms for manipulating mechanical wavefronts with striking feature ultra-thin geometry. The conventional design significantly relies on numerical, trial-and-error methods to identify structural parameters unit cells, which requires huge computational resources and could be extremely challenging if metasurface is multi-functional. Machine learning technique provides another powerful tool multi-functional elastic because its...
Solids built out of active components have exhibited odd elastic stiffness tensors whose moduli appear in the antisymmetric part and which give rise to non-Hermitian static dynamic phenomena. Here, we present a class metamaterial featured with an mass density tensor asymmetric arises from nonconservative forces. The is realized using metamaterials inner resonators connected by programmable feed-forward control on acceleration forces along two perpendicular directions. produce unbalanced...
Research on breaking time-reversal symmetry to realize one-way wave propagation is a growing area in photonic and phononic crystals metamaterials. In this Letter, we present physical realization of an acoustic waveguide with spatiotemporally modulated boundary conditions nonreciprocal transport topological pumping. The inspired by water wheel consists helical tube rotating around slotted at controllable speed. rotation the creates moving for exposed sections constant We experimentally...
Second-order topological insulators, which exhibit capability of hosting topologically protected zero-dimensional corner states distinct from the well-studied edge states, unveil a horizon beyond conventional bulk-edge correspondence. Motivated by recent experimental observation Wannier-type second-order in acoustic structures, we investigate numerically and demonstrate experimentally in-plane mechanical kagome lattice. By manipulating simply lattice geometry quantized characterization,...
Wave frequency is a critical parameter for applications ranging from structural health monitoring, noise control, and medical imaging to quantum of energy in matter. Frequency conversion an inevitable wave phenomenon nonlinear or time-modulated media. However, linear media holds the promise breaking limits imposed by physics laws diffraction such as Snell's law Rayleigh criterion. In this Letter, we physically introduce active metalayer beam that can convert flexural incidence into arbitrary...
Topological pumping allows waves to navigate a sample undisturbed by disorders and defects. We demonstrate this phenomenon with elastic surface strategically patterning an create synthetic dimension. The is decorated arrays of resonating pillars that are connected spatially slow-varying coupling bridges support eigenmodes located below the sound cone. establish connection between collective dynamics electrons in magnetic field developing tight-binding model WKB (Wentzel-Kramers-Brillouin)...
Non-Hermitian parity-time (PT) symmetric systems that possess real eigenvalues have been intensively investigated in quantum mechanics and rapidly extended to optics acoustics demonstrating a lot of unconventional wave phenomena. Here, PT metamaterial beam is designed based on shunted piezoelectric patches asymmetric scattering the form flexural waves demonstrated through analytical numerical approaches. The gain loss components are realized by introduction negative positive resistances into...
Molecular communication (MC) enables conveying information at nano- to micro-scales via molecules or nanoscale particles. MC systems for fixed transmitter and receiver nanomachines have been extensively investigated. However, the scenarios mobile are seldomly studied. In paper, mutual achievable rate in presence of inter-symbol interference noise is The scenario that both independent random motions considered. Due mobility, channel impulse response varies results a varying received signal...
Low-frequency noise is a growing problem in large structures of modern transportation technologies. In this study, we report large-scale acoustic panel made double-layer membrane-type metamaterials (DMAMs) for broadband reduction. A complete theoretical model based on the unit cell fully developed and extended finite multi-celled metamaterial (MAMs) array. constructed from 8 × DMAM cells proposed. To deal with global compliance support structure, frame structure bending stiffness designed to...
Ultra-broadband sound reduction schemes covering living and working noise spectra are of high scientific industrial significance. Here, we report, both theoretically experimentally, on an ultra-broadband acoustic barrier assembled from space-coiling metamaterials (SCMs) supporting two Fano resonances. Moreover, hyper-damping is introduced by integrating additional thin viscous foam layers in the SCMs for optimizing performance. A simplified model developed to study transmission behaviour...
Synopsis: Lignin transformed into porous graphene via direct laser writing for wearable and ultrasensitive strain sensors human motion monitoring.
Abstract Skin exhibits nonlinear mechanics, which is initially soft and stiffens rapidly as being stretched to prevent large deformation‐induced injuries. Developing skin‐interfaced bioelectronics with skin‐inspired mechanical behavior, together multiple other desired features (breathable, antibacterial, sticky), desirable yet challenging. Herein, this study reports the design, fabrication, biomedical application of porous mesh that can simultaneously achieve these features. On one hand,...
In the context of rapid development digital economy, its correlation with agricultural modernization and rural has become increasingly prominent. This paper adopts a two-way fixed-effects model combined mediated-effects to systematically examine impact economy on process transmission paths based panel data 31 provincial-level administrative regions in China from 2011 2023. The empirical results show that significant role promoting agriculture areas, can indirectly promote areas through drive...