Results 21 to 30 of about 2,688 (224)

One-Step Crank-Nicolson Direct-Splitting Algorithm with Enhanced Absorption to Evaluate Low-Pressure Discharge for Satellite Sensors in Outer Space

open access: yesSensors, 2023
Low-pressure discharge causes air ionization resulting in performance degeneration or failure for the satellite sensors in outer space. Here, a one-step Crank-Nicolson Direct-Splitting (CNDS) algorithm is proposed to evaluate the electrical behavior of ...
Yangjing Wang   +4 more
doaj   +1 more source

Damping RF waves with low reflection in simulations of slab or curved magnetized plasma: Parametrization, verification and implementation of Bermudez Perfectly Matched Layers [PDF]

open access: yesEPJ Web of Conferences
Most Radio-Frequency antenna simulations in magnetic fusion require emulating radiation at infinity at some boundaries of the simulation domain. To this end, the Perfectly Matched Layer (PML) technique amounts to stretching artificially the (real ...
Colas Laurent   +4 more
doaj   +1 more source

A simple structure of PCF based sensor for sensing sulfur dioxide gas with high sensitivity and better birefringence

open access: yesSensors International, 2021
This paper describes a micro-cored photonic crystal fiber-based gas sensor that uses a simple structure and proper analysis has done to detect sulfur dioxide gas.
Md Jayed Bin Murshed Leon   +1 more
doaj   +1 more source

Absorbing boundary conditions′ selection and validation for simulation of electromagnetic propagation in interconnects of interposers applied in three-dimensional integration

open access: yesDianzi Jishu Yingyong, 2019
In order to realize the modeling and numerical simulation of the electromagnetic field distribution and wave propagation in interconnects of interposers for three-dimensional integration, the Finite Difference Time Domain(FDTD) method is used in this ...
Zhang Yunxia   +4 more
doaj   +1 more source

An adaptive perfectly matched layer technique for time-harmonic scattering problems [PDF]

open access: yes, 2005
. We develop an adaptive perfectly matched layer (PML) technique for solving the time harmonic scattering problems. The PML parameters such as the thickness of the layer and the fictitious medium property are determined through sharp a posteriori error ...
Zhiming Chen, Xuezhe Liu
core   +2 more sources

ANALYSIS OF INDEXED-GUIDED HIGHLY BIREFRINGENT PHOTONIC CRYSTAL FIBER EMPLOYING DIFFERENT CLADDING GEOMETRIES

open access: yesJournal of Fundamental and Applied Sciences, 2015
     In this paper, a comparative study of three geometries of highly birefringent photonic crystal fibers (HB PCF) is presented. The proposed geometries are: V type PCF, Pseudo-Panda PCF and selectively liquid-filled PCF.
A. M. Jouri   +5 more
doaj   +1 more source

Application of the multiaxial perfectly matched layer (M-PML) to near-surface seismic modeling with Rayleigh waves [PDF]

open access: yesGeophysics, 2011
Abstract Perfectly matched layer (PML) absorbing boundaries are widely used to suppress spurious edge reflections in seismic modeling. When modeling Rayleigh waves with the existence of the free surface, the classical PML algorithm becomes unstable when the Poisson's ratio of the medium is high.
Zeng, Chong   +3 more
openaire   +2 more sources

The PML for rough surface scattering

open access: yes, 2009
In this paper we investigate the use of the perfectly matched layer (PML) to truncate a time harmonic rough surface scattering problem in the direction away from the scatterer.
Chandler-Wilde, Simon Neil, Monk, Peter
core   +1 more source

Breaking the black-body limit with resonant surfaces

open access: yesEPJ Applied Metamaterials, 2017
The speed with which electromagnetic energy can be wirelessly transferred from a source to the user is a crucial indicator for the performance of a large number of electronic and photonic devices.
Valagiannopoulos Constantinos A.   +2 more
doaj   +1 more source

Assessment of a PML Boundary Condition for Simulating an MRI Radio Frequency Coil

open access: yesInternational Journal of Antennas and Propagation, 2008
Computational methods such as the finite difference time domain (FDTD) play an important role in simulating radiofrequency (RF) coils used in magnetic resonance imaging (MRI). The choice of absorbing boundary conditions affects the final outcome of such
Yunsuo Duan   +4 more
doaj   +1 more source

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