Acoustic properties of additive manufactured narrow tube periodic structures
Sign Up to like & getrecommendations! Published in 2018 at "Applied Acoustics"
DOI: 10.1016/j.apacoust.2018.02.022
Abstract: Abstract Quarter tube periodic resonators are used to attenuate the acoustic energy of discrete frequencies wherein their sizes can vary from narrow to large. This paper reports acoustical properties of additive manufactured, narrow tube, single… read more here.
Keywords: properties additive; tube periodic; tube; narrow tube ... See more keywords
The frequency of periodic structures in vertical pneumatic conveying of large particles
Sign Up to like & getrecommendations! Published in 2017 at "Chemical Engineering Science"
DOI: 10.1016/j.ces.2017.01.005
Abstract: Abstract The transport of larger particles, defined as type D in the classification of Geldart (1973), by pneumatic conveying, is characterised by periodic structures, namely slugs. The frequency of these slugs in vertical pipes shows… read more here.
Keywords: frequency periodic; frequency; periodic structures; vertical pneumatic ... See more keywords
Surface-wave attenuation zone of layered periodic structures and feasible application in ground vibration reduction
Sign Up to like & getrecommendations! Published in 2017 at "Construction and Building Materials"
DOI: 10.1016/j.conbuildmat.2017.02.153
Abstract: Abstract A layered periodic structure is proposed to construct a periodic wave barrier, which is defined by extended typical cells consisting of two different components. The periodic structure with reasonable design has attenuation zones (AZs)… read more here.
Keywords: layered periodic; surface wave; vibration reduction; periodic structures ... See more keywords
Model reduction based on matrix interpolation and distorted finite element meshes for dynamic analysis of 2D nearly periodic structures
Sign Up to like & getrecommendations! Published in 2021 at "Finite Elements in Analysis and Design"
DOI: 10.1016/j.finel.2021.103518
Abstract: Abstract The dynamic analysis of 2D nearly periodic structures of finite dimensions, subject to harmonic excitations, is addressed. Such structures are often made up of slightly different locally resonant layered substructures whose geometrical properties randomly… read more here.
Keywords: analysis nearly; dynamic analysis; nearly periodic; interpolation ... See more keywords
Analysis of in-plane wave propagation in periodic structures with Sierpinski-carpet unit cells
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Sound and Vibration"
DOI: 10.1016/j.jsv.2017.02.020
Abstract: Abstract In this study, the dispersion relationships and characteristics of directional periodic structure waveguides with Sierpinski carpet unit cells were investigated. Finite element method was used to analyze the Sierpinski-carpet periodic structures with square Pb… read more here.
Keywords: sierpinski carpet; periodic structures; carpet unit; unit cells ... See more keywords
Routes for realizing high-performing Si solar cells by using periodic structures
Sign Up to like & getrecommendations! Published in 2017 at "Materials Research Bulletin"
DOI: 10.1016/j.materresbull.2017.05.027
Abstract: Abstract Theoretical suggestion indicated the substantial improvement of solar cells by using periodic structures. Yet, the promise has not been practically realized due to the lack of electrical analyses of periodical light-absorbing structure. Here, we… read more here.
Keywords: periodic structures; routes realizing; cells using; using periodic ... See more keywords
A novel method for identifying surface waves in periodic structures
Sign Up to like & getrecommendations! Published in 2017 at "Soil Dynamics and Earthquake Engineering"
DOI: 10.1016/j.soildyn.2017.04.011
Abstract: Abstract In this study, the propagation of surface waves in both one- and two-dimensional periodic structures is investigated. By combining finite element method, an energy distribution parameter is defined and a new method for identifying… read more here.
Keywords: method identifying; surface waves; surface; periodic structures ... See more keywords
Efficient Transition State Optimization of Periodic Structures through Automated Relaxed Potential Energy Surface Scans.
Sign Up to like & getrecommendations! Published in 2018 at "Journal of chemical theory and computation"
DOI: 10.1021/acs.jctc.7b01070
Abstract: This work explores how constrained linear combinations of bond lengths can be used to optimize transition states in periodic structures. Scanning of constrained coordinates is a standard approach for molecular codes with localized basis functions,… read more here.
Keywords: transition; efficient transition; periodic structures; transition state ... See more keywords
Perturbation theories for symmetry-protected bound states in the continuum on two-dimensional periodic structures
Sign Up to like & getrecommendations! Published in 2020 at "Physical Review A"
DOI: 10.1103/physreva.101.043827
Abstract: On dielectric periodic structures with a reflection symmetry in a periodic direction, there can be antisymmetric standing waves (ASWs) that are symmetry-protected bound states in the continuum (BICs). The BICs have found many applications, mainly… read more here.
Keywords: protected bound; bound states; periodic structures; resonant modes ... See more keywords
PEEC Model Based on a Novel Quasi-Static Green's Function for Two-Dimensional Periodic Structures
Sign Up to like & getrecommendations! Published in 2023 at "IEEE Journal on Multiscale and Multiphysics Computational Techniques"
DOI: 10.1109/jmmct.2023.3263686
Abstract: A quasi-static periodic Green's function (PGF) is proposed for modeling and designing metasurfaces in the form of two-dimensional (2D) periodic structures. By introducing a novel quasi-static approximation on the full-wave PGF in the spectrum domain,… read more here.
Keywords: periodic structures; dimensional periodic; two dimensional; frequency ... See more keywords
An FDTD Method for Fully Anisotropic Periodic Structures Impinged by Obliquely Incident Plane Waves
Sign Up to like & getrecommendations! Published in 2020 at "IEEE Transactions on Antennas and Propagation"
DOI: 10.1109/tap.2019.2935140
Abstract: A finite-difference time-domain (FDTD) method is developed to analyze electromagnetic scattering from 3-D fully anisotropic periodic structures impinged by obliquely incident plane waves. Starting from Maxwell’s curl equations, we employ material transformation matrices to link… read more here.
Keywords: fdtd method; structures impinged; method; anisotropic periodic ... See more keywords