Effective Parameters of Acoustic Metamaterials
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DOI: 10.1007/s11182-018-1506-3
Abstract: Analytical expressions are presented for the wave number, the characteristic wave impedance, and the refractive index of homogeneous longitudinal plane waves propagating in an acoustic metamaterial with dissipative losses. The metamaterial is characterized by the… read more here.
Keywords: acoustic metamaterials; parameters acoustic; effective parameters;
The influence of structural parameters of acoustic panels textile fronts on their sound absorption properties
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DOI: 10.1016/j.apacoust.2021.107964
Abstract: Abstract There are two main groups of acoustic dedicated products: movable panels and fixed elements (wall coverings, furniture, etc.). The typically textiles intended for this kind construction are flat fabrics and fabrics with relief. Within… read more here.
Keywords: acoustic panels; parameters acoustic; influence structural; structural parameters ... See more keywords
Parameters of Acoustic Signals Generated by the Atmospheric Meteoroid Explosion over Romania on January 7, 2015
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DOI: 10.1134/s0038094618030048
Abstract: System spectral analysis of temporal variations in the level of acoustic signals recorded at a number of European infrasound stations is carried out. The prevailing periods that varied within 3–5 s are found. Initial kinetic… read more here.
Keywords: meteoroid explosion; acoustic signals; signals generated; generated atmospheric ... See more keywords