Results 21 to 30 of about 15,381 (219)

A Novel FDTD–PML Scheme for Noise Propagation Generated by Biomimetic Flapping Thrusters in the Ocean Environment

open access: yesJournal of Marine Science and Engineering, 2022
Biomimetic flapping-foil thrusters can operate efficiently while offering desirable levels of thrust required for the propulsion of a small vessel or an Autonomous Underwater Vehicle (AUV).
Iro Malefaki, Kostas Belibassakis
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

A Complex Domain Mapping of the SCN for an Effective PML Implementation in TLM

open access: yesIEEE Open Journal of Antennas and Propagation, 2020
An improved implementation of the perfectly matched layer (PML) is developed for the Transmission Line Modelling (TLM) method based on a mapping of the symmetrical condensed node (SCN) to an analytically extended geometric space. By mapping the TLM node,
Jomiloju S. Odeyemi   +3 more
doaj   +1 more source

Sound Field Modelling and Noise Reduction for a Forklift Power Compartment Based on Perfectly Matched Layer and Acoustic Packaging Design

open access: yesArchives of Acoustics, 2021
The core goal of this paper is to put forward a feasible scheme of noise reduction for a target forklift on the basis of solving the problem of vibration and acoustic radiation from complex structures in infinite domain.
Enlai ZHANG   +3 more
doaj   +1 more source

Dynamic soil-structure interaction analysis in time domain based on a modified version of perfectly matched discrete layers

open access: yesJournal of Rock Mechanics and Geotechnical Engineering, 2020
Analysis of soil-structure interaction is commonly conducted by dividing the infinite domain of the soil into two domains: interior and exterior domains.
Dong Van Nguyen, Dookie Kim
doaj   +1 more source

Seismo-VLAB: An Open-Source Software for Soil–Structure Interaction Analyses

open access: yesMathematics, 2023
In the fields of structural and geotechnical engineering, improving the understanding of soil–structure interaction (SSI) effects is critical for earthquake-resistant design.
Danilo S. Kusanovic   +6 more
doaj   +1 more source

Reply to Minin, I.V.; Minin, O.V. Comment on “Mahariq et al. Investigation and Analysis of Acoustojets by Spectral Element Method. Mathematics 2022, 10, 3145”

open access: yesMathematics, 2022
This reply provides one-to-one responses to comments regarding the article entitled: “Investigation and Analysis of Acoustojets by Spectral Element Method” that has been published in Mathematics by MDPI.
Ibrahim Mahariq
doaj   +1 more source

Investigation and Analysis of Acoustojets by Spectral Element Method

open access: yesMathematics, 2022
In this study, acoustic wave scattering in a homogeneous media by an obstacle is examined in the case of plane wave excitation and the formation of acoustic jets is explored.
Ibrahim Mahariq   +5 more
doaj   +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

Complex Envelope Approximate Crank-Nicolson Method and Its Open Boundary Implementation for Bandpass Problem

open access: yesIEEE Access, 2021
To efficiently simulate the bandpass electromagnetic problems by employing the finite-difference time-domain (FDTD) algorithm, unconditionally stable implementation is proposed based upon the complex envelope method and the Crank-Nicolson Direct ...
Shihong Wu   +4 more
doaj   +1 more source

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