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pro vyhledávání: '"Smith, M J A"'
Using a combination of multipole methods and the method of matched asymptotics, we present a solution procedure for acoustic plane wave scattering by a single Helmholtz resonator in two dimensions. Closed-form representations for the multipole scatte
Externí odkaz:
http://arxiv.org/abs/2204.02840
Autor:
Smith, M. J. A., Abrahams, I. D.
We present a solution method which combines the method of matched asymptotics with the method of multipole expansions to determine the band structure of cylindrical Helmholtz resonators arrays in two dimensions. The resonator geometry is considered i
Externí odkaz:
http://arxiv.org/abs/2202.09943
Autor:
Smith, M. J. A., Abrahams, I. D.
We present a novel multipole formulation for computing the band structures of two-dimensional arrays of cylindrical Helmholtz resonators. This formulation is derived by combining existing multipole methods for arrays of ideal cylinders with the metho
Externí odkaz:
http://arxiv.org/abs/2202.09941
Publikováno v:
Proc. R. Soc. A. 476:2020.0360
A solution to the problem of water-wave scattering by a semi-infinite submerged thin elastic plate, which is either porous or non-porous, is presented using the Wiener-Hopf technique. The derivation of the Wiener-Hopf equation is rather different fro
Externí odkaz:
http://arxiv.org/abs/2009.13464
Akademický článek
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Syntactic foams are composite materials frequently used in applications requiring the properties of low density and high damage tolerance. In the present work, polymer-based syntactic foams were studied under cyclic compression in order to investigat
Externí odkaz:
http://arxiv.org/abs/1903.00397
We report a theoretical study of Stimulated Brillouin Scattering (SBS) in general anisotropic media, incorporating the effects of both acoustic strain and local rotation in all calculations. We apply our general theoretical framework to compute the S
Externí odkaz:
http://arxiv.org/abs/1809.08033
Autor:
Smith, M J A, Chen, P Y
Publikováno v:
Phys. Rev. Lett. 121, 103902 (2018)
We theoretically show that the frequency and momentum of a photon are not necessarily proportional to one another at low frequencies in photonic crystals comprising materials with positive- and negative-valued material properties. We rigorously deter
Externí odkaz:
http://arxiv.org/abs/1712.09112
Publikováno v:
Phys. Rev. B 96, 064114 (2017)
We present a rigorous procedure for evaluating the photoelastic coefficients of a layered medium where the periodicity is smaller than the wavelengths of all optical and acoustic fields. Analytical expressions are given for the coefficients of a comp
Externí odkaz:
http://arxiv.org/abs/1702.01581
Autor:
Szedlak, C.1 (AUTHOR) Christoph.Szedlak@hartpury.ac.uk, Smith, M. J.2 (AUTHOR), Batten, J.2 (AUTHOR), Howarth, N.3 (AUTHOR), White, A. J.4 (AUTHOR)
Publikováno v:
Sport, Education & Society. Oct2024, p1-12. 12p.
