Results 1 to 10 of about 5,453 (264)
Natural sonic crystal absorber constituted of seagrass (Posidonia Oceanica) fibrous spheres [PDF]
Scientific Reports, 2021 We present a 3-dimensional fully natural sonic crystal composed of spherical aggregates of fibers (called Aegagropilae) resulting from the decomposition of Posidonia Oceanica.
L. Barguet +5 more
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An Auditory Illusion of Proximity of the Source Induced by Sonic Crystals. [PDF]
PLoS ONE, 2015 In this work we report an illusion of proximity of a sound source created by a sonic crystal placed between the source and a listener. This effect seems, at first, paradoxical to naïve listeners since the sonic crystal is an obstacle formed by almost ...
Ignacio Spiousas +4 more
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Increasing the Insertion Loss of Sonic Crystal Noise Barriers with Helmholtz Resonators
Applied Sciences, 2023 Helmholtz resonators (HRs) have the advantage of extending and improving their insulating capacity when used as scatterers in noise barriers made of periodic media, such as sonic crystals (SCs).
Javier Redondo +2 more
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Sound Insulation and Reflection Properties of Sonic Crystal Barrier Based on Micro-Perforated Cylinders [PDF]
Materials, 2019 Stefan Dimitrijevic +2 more
exaly +2 more sources
Sonic and Photonic Crystals [PDF]
Crystals, 2020 Sonic/phononic crystals named acoustic/sonic band gap media are the elastic analogues of photonic crystals and have received renewed attention recently in many acoustic applications [...]
Lien-Wen Chen, Jia-Yi Yeh
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Higher-order Dirac sonic crystals [PDF]
Physical Review Letters, 2020 Abstract Discovering new topological phases of matter is a major theme in fundamental physics and materials science1,2. Dirac semimetal features isolated fourfold linear band crossings, i.e., Dirac points, and provides an exceptional platform for exploring topological phase transitions under symmetry breaking3.
Chunyin Qiu +3 more
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Improvement of Sound Insulation Through Double-Panel Structure by Using Hybrid Local Resonator Array [PDF]
Archives of Acoustics, 2023 In this paper, we present one approach to improve the soundproofing performance of the double-panel structure (DPS) in the entire audible frequencies, in which two kinds of local resonances, the breathing-type resonance and the Helmholtz resonance, are ...
Kyong-Su Ri +2 more
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The transit time of sound in a phononic crystal
AIP Advances, 2022 Electron material waves cannot permeate a periodic atomic lattice at each energy or frequency. There exists a forbidden gap due to the periodicity of the atoms. In analogy, acoustic waves cannot penetrate a phononic or sonic crystal at each frequency.
Herbert Kliem, Roxanne Bohdjalian
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Matryoshka locally resonant sonic crystal [PDF]
The Journal of the Acoustical Society of America, 2011 The results of numerical modeling of sonic crystals with resonant array elements are reported. The investigated resonant elements include plain slotted cylinders as well as their various combinations, in particular, Russian doll or Matryoshka configurations. The acoustic band structure and transmission characteristics of such systems have been computed
Elford, Daniel +3 more
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Acta Acustica, 2021 Sonic crystal acoustic screens have been in progressive research and development in the last two decades as a technical solution for mitigating traffic noise.
Peiró-Torres M.P. +5 more
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