Transcranial Acoustic Metamaterial Parameters Inverse Designed by Neural Networks [PDF]
BME Frontiers, 2023 Objective: The objective of this work is to investigate the mapping relationship between transcranial ultrasound image quality and transcranial acoustic metamaterial parameters using inverse design methods.
Yuming Yang +6 more
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Conformally Mapped Multifunctional Acoustic Metamaterial Lens for Spectral Sound Guiding and Talbot Effect [PDF]
Research, 2019 We demonstrate a conformally mapped multifunctional acoustic metamaterial Mikaelian lens. Mikaelian lens is a gradient medium with a hyperbolic secant refractive index profile that can realize functions like beam self-focusing.
He Gao +6 more
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An in vitro demonstration of a passive, acoustic metamaterial as a temperature sensor with mK resolution for implantable applications [PDF]
Microsystems & NanoengineeringWireless medical sensors typically utilize electromagnetic coupling or ultrasound for energy transfer and sensor interrogation. Energy transfer and management is a complex aspect that often limits the applicability of implantable sensor systems.
Lucrezia Maini +5 more
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A data-driven design for sound absorption of acoustic metamaterials based on large language models [PDF]
Scientific ReportsMachine learning (ML)-based data-driven approaches are extensively employed in forward and inverse acoustic metamaterial design, as evidenced by numerous research papers published in recent years.
Yongfeng Jiang +7 more
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Low and medium frequency acoustic absorption properties of acoustic metamaterials with irregular cylindrical cavities [PDF]
Scientific ReportsThe automotive industry is moving towards low noise and lightweight, and acoustic metamaterials can play a vital role. This paper presents a new acoustic metamaterial consisting of cylindrical holes of different depths arranged circumferentially and ...
Zhenhua Hou +5 more
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Broadband ultra-long acoustic jet based on double-foci Luneburg lens [PDF]
JASA Express Letters, 2021 In this paper, a gradient index acoustic metamaterial is proposed based on the concept of the optical modified generalized Luneburg lens (MGLL). With the MGLL, double-foci and high energy density between the two foci can be achieved, which enables the ...
Liuxian Zhao, Timothy Horiuchi, Miao Yu
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Material Parameters Acquisition and Sound Insulation Performance analysis of Membrane-type Acoustic Metamaterials Applied for Transformer [PDF]
E3S Web of Conferences, 2019 As a light-weight and ultra-thin artificial material, acoustic metamaterial have more different attributes than natural material. The study of sound insulation for acoustic metamaterial is hot, and the membrane-type acoustic metamaterials supplement the ...
Yuchao Ma +4 more
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Research on the Sound Insulation Properties of Membrane-type Acoustic Metamaterials [PDF]
E3S Web of Conferences, 2021 Low- and medium-frequency noise from ship cabins is difficult to control effectively. Excessive noise can seriously affect the acoustic stealth performance of ships.
Hao Jinyu +4 more
doaj +1 more source
AIP Advances, 2023 We proposed an acoustic metamaterial with deep subwavelength thickness for low-frequency underwater sound absorption. The proposed hybrid metamaterial has a perforated facesheet, a fluid-filled square honeycomb core with inside rubber coating, and a ...
Mingyu Duan +3 more
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A transformable anisotropic 3D penta-mode metamaterial
Materials & Design, 2023 Penta-mode metamaterials, composed by solids but behaving as liquid, have great potential in manipulating acoustic wave in fluids. Most work concentrates on 2D penta-mode metamaterial consisting of classic honeycomb lattice and their acoustic ...
Zhibo Wei +4 more
doaj +1 more source