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Damped resonance for broadband acoustic absorption in one-port and two-port systems
We demonstrate broadband perfect acoustic absorption by damped resonances through inclusion of lossy porous media. By minimally placing the lossy materials around the necks of single-resonance Helmholtz resonators, where acoustic energy is concentrated, we show an increase in absorption bandwidths (...
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| Veröffentlicht in: | Sci Rep |
|---|---|
| Hauptverfasser: | , , |
| Format: | Artigo |
| Sprache: | Inglês |
| Veröffentlicht: |
Nature Publishing Group UK
2019
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| Schlagworte: | |
| Online Zugang: | https://ncbi.nlm.nih.gov/pmc/articles/PMC6736864/ https://ncbi.nlm.nih.gov/pubmed/31506458 https://ncbi.nlm.nih.govhttp://dx.doi.org/10.1038/s41598-019-49222-w |
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