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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Research on Low-Frequency Noise Control of Automobiles Based on Acoustic Metamaterial [PDF]
Materials, 2022 Yudong Wu, Huang Haibo, Xu Chuanlai
exaly +2 more sources
Mesh sensitivity and experimental verification for randomized arbitrary geometry cavity-based acoustic metamaterials designed with 2D FEM simulations [PDF]
Scientific ReportsAcoustic metamaterial development is a rapidly expanding field, which has shown great success in many applied scenarios. The development of acoustic metamaterials is enabled by modelling techniques such as the Finite Elements Method (FEM), which allow ...
Piotr Książek, Bartłomiej Chojnacki
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Journal of Applied Physics, 2021 Waves are generally characterized by angular frequency ω and wavevector k. Accordingly, this tutorial is structured into two parts, one on resonance-based acoustic metamaterials, in the frequency domain, and one on topological acoustics, based on the wavevector domain as topological structures inherently involve spatial configurations that are a step ...
Jensen Li, Xinhua Wen, Ping Sheng
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Underwater acoustic metamaterials
National Science Review, 2022 Abstract Acoustic metamaterials have been widely investigated over the past few decades and have realized acoustic parameters that are not achievable using conventional materials. After demonstrating that locally resonant acoustic metamaterials are capable of acting as subwavelength unit cells, researchers have evaluated the possibility ...
Erqian Dong +5 more
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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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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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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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