Results 41 to 50 of about 2,688 (224)
Calcul du rayonnement acoustique d'onde d'instabilité utilisant une PML (Perfectly Matched Layer)
, 2005 In this paper a Perfectly Matched Layer (PML) formulation was tested as boundary condition in linearized Euler’s Equations. Counted among absorbing boundary conditions, it was recently introduced in Computational Aeroacoustics (CAA).
Bailly, Christophe, Emmert, Thomas
core +2 more sources
International Journal of Antennas and Propagation, 2018 To solve the problem of electromagnetic reflections caused by the termination of finite-difference time-domain (FDTD) grids, we apply the complex frequency-shifted perfectly matched layer (CFS-PML) to airborne transient electromagnetic (ATEM) modeling in
Yanju Ji +4 more
doaj +1 more source
Advanced Science, EarlyView.We investigate the geometry‐governed optoelectronic anisotropy arising from dielectric confinement in quasi‐1D γ‐GaS nanoribbons with intrinsically isotropic atomic structures. Dielectric mismatch between the nanoribbon and its surroundings leads to a general polarization‐dependent photoresponse during near‐field scattering.
Jiawei Jing +16 more
wiley +1 more source
Pemodelan Awal Ground Penetrating Radar dengan Metode Discontinuous Galerkin dan PML Berenger
Jurnal Nasional Teknik Elektro dan Teknologi Informasi, 2016 This paper discusses the development of Discontinuous Galerkin method, which has both linear shape function and weight function, for modeling Ground Penetrating Radar (GPR) in heterogeneous media.
Pranowo
doaj +1 more source
Programmable Elastic Wave Control Via Mechanical‐Acoustic Interaction in Bistable Metamaterials
Advanced Science, EarlyView.A mechanically programmable metamaterial based on mechanical‐acoustic interaction enables reconfigurable elastic wave control through bistable state switching. Spatial encoding of peak and valley states tunes band structures and transmission, achieving low‐frequency vibration suppression, waveguiding, and energy localization.
Yuanyuan Li +7 more
wiley +1 more source
NUMERICAL ANALYSIS OF NON-REFLECTION BOUNDARY SIMULATION METHOD FOR RADIATION ACOUSTIC FIELD
Jixie qiangdu, 2019 Boundary condition is an important issue in acoustic calculations, and free acoustic field is often simulated by non-reflection boundary in acoustic calculations.
LI LiJun, LIU YiRan, SUN FengShan
doaj
An Unconditionally Stable Cylindrical FDTD Method to Analyze the EM Ground Wave Propagation
International Journal of Antennas and Propagation, 2018 We extended the unconditionally stable associated Hermite (AH) FDTD method to the cylindrical coordinate system for analyzing the electromagnetic (EM) ground wave propagation.
Zheng-Yu Huang +3 more
doaj +1 more source
Propagation Operator Based Boundary Condition for Finite Element Analysis
IEEE Photonics Journal, 2020 A new efficient boundary condition of finite element method (FEM) by using propagation operator is proposed. In this method, input, and output ports are terminated on their own boundaries instead of using perfectly matched layer (PML) which requires ...
Keita Morimoto +2 more
doaj +1 more source
Milled Microchannel-Assisted Open D-Channel Photonic Crystal Fiber Plasmonic Biosensor
IEEE Access, 2021 A surface plasmon resonance (SPR) based photonic crystal fiber (PCF) sensor having a milled microchannel, and an open D-channel has been proposed in this paper.
M. Hussayeen Khan Anik +7 more
doaj +1 more source
Advanced Intelligent Systems, EarlyView.A piezoelectric meta‐transducer generates an ultrasonic rainbow, steering guided elastic waves to different angles according to frequency. A dithering‐based binary electrode design enables a closer realization of the target wavenumber filter, improving directional purity and suppressing unwanted lobes. Numerical and experimental validation demonstrates
Masoud Mohammadgholiha +5 more
wiley +1 more source