Results 71 to 80 of about 118,824 (293)
Advanced Materials Technologies, EarlyView.Transducers convert physical signals into electrical and optical representations, yet each mechanism is bounded by intrinsic trade‐offs across bandwidth, sensitivity, speed, and energy. This review maps transduction mechanisms across physical scale and frequency, showing how heterogeneous integration and multiphysics co‐design transform isolated ...
Aolei Xu +8 more
wiley +1 more source
Reverse design of broadband sound absorption structure based on deep learning method
Scientific ReportsThis research presents a method based on deep learning for the reverse design of sound-absorbing structures. Traditional methods require time-consuming individual numerical simulations followed by cumbersome calculations, whereas the deep learning design
Yihong Zhou +3 more
doaj +1 more source
Evaluation of acoustic properties of lattice structure manufactured by selective laser melting
Nihon Kikai Gakkai ronbunshu, 2020 In this paper, sound absorption properties of poroelastic lattice structure are investigated through numerical simulation and measurement. The lattice structures discussed in this paper are composed of slender beams only (BCC) and beams and shells (BCC-S)
Naoki MASUDA +3 more
doaj +1 more source
On the sound absorption coefficient of porous asphalt pavements for oblique incident sound waves [PDF]
, 2014 A rolling tyre will radiate noise in all directions. However, conventional measurement techniques for the sound absorption of surfaces only give the absorption coefficient for normal incidence.
Bekke, D.A. +3 more
core +1 more source
Ultrasonic waves in classical gases
, 2017 The velocity and absorption coefficient for the plane sound waves in a classical gas are obtained by solving the Boltzmann kinetic equation, which describes the reaction of the single-particle distribution function to a periodic external field.
Gorenstein, M. I. +2 more
core +1 more source
Time dependent seafloor acoustic backscatter (10-100kHz) [PDF]
, 2003 A time-dependent model of the acoustic intensity backscattered by the seafloor is described and compared with data from a calibrated, vertically oriented, echo-sounder operating at 33 and 93 kHz.
de Moustier, Christian +1 more
core +3 more sources
Magnetic Textiles: A Review of Materials, Fabrication, Properties, and Applications
Advanced Materials Technologies, EarlyView.Magnetic textiles (M‐textiles) are emerging as a programmable materials platform that merges magnetic matter with hierarchical textile structures. This article consolidates magnetic material classes, textile architectures, and fabrication and magnetization strategies, revealing structure–property–function relationships that govern magneto‐mechanical ...
Li Ke +3 more
wiley +1 more source
Hard‐Magnetic Soft Millirobots in Underactuated Systems
Advanced Robotics Research, EarlyView.This review provides a comprehensive overview of hard‐magnetic soft millirobots in underactuated systems. It examines key advances in structural design, physics‐informed modeling, and control strategies, while highlighting the interplay among these domains.
Qiong Wang +4 more
wiley +1 more source
Green Materials Comparation of Sawdust and Coconut Fibre Acoustical Waffle Panel [PDF]
, 2016 . The natural wealth of Indonesia produces a wide range of natural resources. This research will discuss sawdust and coconut fibre for example from natural resources which can be processed into building materials.
Hardiman, Gagoek, Setyowati, Erni
core
An alternative coefficient for sound absorption
, 2013 The acoustic absorption coefficient is a number that indicates which fraction of the incident acoustic power impinging on a surface is being absorbed. The incident acoustic power is obtained by spatial integration of the incident intensity, which is (classically) defined as the time-averaged intensity associated with the incident sound field.
Wijnant, Ysbrand H. +2 more
openaire +1 more source