Results 1 to 10 of about 13,645 (194)

Moth wings are acoustic metamaterials. [PDF]

Proc Natl Acad Sci U S A, 2020
Significance Bats and moths are embroiled in an evolutionary arms race. Using ultrasonic biosonar, bats detect their insect prey, which in turn deploy diverse strategies to avoid predation. Here, we show that some moth species evolved wings covered with a canopy of scales that reduces ultrasonic echoes. Our empirical and mathematical analysis
Neil TR, Shen Z, Robert D, Drinkwater BW, Holderied MW.   +4 more
europepmc   +7 more sources

Tailored acoustic metamaterials. Part I. Thin- and thick-walled Helmholtz resonator arrays. [PDF]

Proc Math Phys Eng Sci, 2022
Smith MJA, Abrahams ID.
europepmc   +1 more source

Progress of low-frequency sound absorption research utilizing intelligent materials and acoustic metamaterials. [PDF]

RSC Adv, 2021
Chang L, Jiang A, Rao M, Ma F, Huang H, Zhu Z, Zhang Y, Wu Y, Li B, Hu Y.   +9 more
europepmc   +1 more source

Hybrid fractal acoustic metamaterials for low-frequency sound absorber based on cross mixed micro-perforated panel mounted over the fractals structure cavity. [PDF]

Sci Rep, 2022
Singh SK, Prakash O, Bhattacharya S.
europepmc   +1 more source

Low-Frequency Bandgaps of the Lightweight Single-Phase Acoustic Metamaterials with Locally Resonant Archimedean Spirals. [PDF]

Materials (Basel), 2022
Gao H, Yan Q, Liu X, Zhang Y, Sun Y, Ding Q, Wang L, Xu J, Yan H.   +8 more
europepmc   +1 more source

Combinatorial asymmetric acoustic metamaterials with real-time programmability. [PDF]

Proc Natl Acad Sci U S A
Keogh MR, Bilal OR.
europepmc   +1 more source

Acoustic Insulation Mechanism of Membrane-Type Acoustic Metamaterials Loaded with Arbitrarily Shaped Mass Blocks of Variable Surface Density. [PDF]

Materials (Basel), 2022
Li J, Shi Y, Jiang R, Zhang Z, Huang Q.
europepmc   +1 more source

Current developments in elastic and acoustic metamaterials science. [PDF]

Philos Trans A Math Phys Eng Sci
Failla G, Marzani A, Palermo A, Russillo AF, Colquitt D.   +4 more
europepmc   +2 more sources

Low and medium frequency acoustic absorption properties of acoustic metamaterials with irregular cylindrical cavities. [PDF]

Sci Rep
Hou Z, Zhang K, Zhou Z, Zheng Y, Wang J, Wang L.   +5 more
europepmc   +1 more source

A data-driven design for sound absorption of acoustic metamaterials based on large language models. [PDF]

Sci Rep
Jiang Y, Cao S, Meng H, Zhou R, Ren J, Feng X, Shen C, Lu T.   +7 more
europepmc   +1 more source