HIGHLIGHTS
- who: Yonghua Wang and collaborators from the Jilin University, Changchun, PR China have published the paper: Sound absorption of a new bionic multi-layer absorber, in the Journal: (JOURNAL)
- what: Considering the accuracy and simplicity, Delany-Bazley-Miki model is proposed to evaluate the wavenumber k and characteristic impedance Zc: Z c=q0 c 0 k= x c0 " r " For 0:01 and amp;lt; r f r f j8:43 103 r f j11:41 103 r where r is the resistivity of porous material. In this study, a bionic coupling multi-layer structure . . .
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