2026-10-12T20:47:04Z https://api.figshare.com/v2/oai

oai:figshare.com:article/34035798 2026-09-30T17:40:36Z category_1 category_4 category_146 category_915 category_12 category_15 category_21 category_873 category_734 category_64 category_132 portal_5 item_type_1 month_year_09_2026

<p>Influence of the porous half-length on the absorbed fraction.</p> Muna Elsadig (25145379) Muhammad Safdar (1474231) Hala H. Taha (22838328) Muhammad Afzal (83943) Biophysics Biochemistry Space Science Physical Sciences not elsewhere classified Cell Biology Neuroscience Biotechnology Chemical Sciences not elsewhere classified Biological Sciences not elsewhere classified Cancer Infectious Diseases whose projection yields wavepacket &# 8211 wall cosine modes truncation convergence study transient treatment follows precomputed wavenumber grid form coupling matrix every matching plane cavity hybrid resonances block linear system power fluxes entering absorbed power fraction weighted matrix product broadband acoustic pulse membrane &# 8211 dependent acoustic scattering incident power vector product pulse energy dependent propagation dependent field xlink "> wise reconstruction velocity continuity single gaussian reflection regimes porous segments porous model porous filler porous core maximum absorption lossless limit fourier approach field splits dissipative decay dissipation audit computational framework centre line <p>Parameters <i>a</i> = 0.05 m, <i>T</i> = 350.0 N/m, frequency sweep Hz, length sweep m, <i>N</i> = 12, <i>M</i> = 18. Panel (a): heatmap of over the (<i>f</i>, <i>L</i>) plane. Panel (b): frequency slices at <i>L</i> = 0.05, 0.10, 0.18 m. Physical interpretation: the curved bands in (a) are longitudinal cavity resonances of the porous segment shifting as 1/<i>L</i>; the absorption envelope grows with <i>L</i> because the in-core propagation loss scales as .</p> 2026-09-30T17:40:25Z Image Figure 10.1371/journal.pone.0358579.g008 https://figshare.com/articles/figure/_p_Influence_of_the_porous_half-length_on_the_absorbed_fraction_p_/34035798 CC BY 4.0