Results 91 to 100 of about 1,580,055 (393)
From a profiled diffuser to an optimized absorber [PDF]
, 2000 The quadratic residue diffuser was originally designed for enhanced scattering. Subsequently, however, it has been found that these diffusers can also be designed to produce exceptional absorption.
Cox, TJ, Lam, YW, Wu, T
core +1 more source
Acoustic Absorption and Dynamic Viscosity in Polymers [PDF]
The Journal of the Acoustical Society of America, 1966 We have obtained results that show that acoustic absorption in linear polysiloxanes varies with viscosity and frequency in a unique manner. At any constant temperature, a significant relaxation is found, with a broad spectrum of relaxation frequencies.
Joseph L. Hunter +2 more
openaire +2 more sources
The acoustical absorption by air-saturated aerogel powders
The Journal of the Acoustical Society of America, 2022 The acoustical behavior of air-saturated aerogel powders in the audible frequency range is not well understood. It is not clear, for example, which physical processes control the acoustic absorption and/or attenuation in a very light, loose granular mix in which the grain diameter is on the order of a micron.
Begum, H. +3 more
openaire +2 more sources
Proceedings of the 10th Convention of the European Acoustics Association Forum Acusticum 2023, 2022 The omnidirectional parametric loudspeaker (OPL) is a sound source that exploits the phenomenon of the parametric acoustic array (PAA) to produce an omnidirectional sound field. It consists of hundreds of ultrasound transducers distributed on the surface
Italy Turin +6 more
semanticscholar +1 more source
Beyond Order: Perspectives on Leveraging Machine Learning for Disordered Materials
Advanced Engineering Materials, EarlyView.This article explores how machine learning (ML) revolutionizes the study and design of disordered materials by uncovering hidden patterns, predicting properties, and optimizing multiscale structures. It highlights key advancements, including generative models, graph neural networks, and hybrid ML‐physics methods, addressing challenges like data ...
Hamidreza Yazdani Sarvestani +4 more
wiley +1 more source
Muhandisī-i bihdāsht-i ḥirfah/ī, 2016 Introduction: In Iran country, there is a lack of reliable data on acoustic characteristics of building materials applied in the offices and industrial rooms.
Mohsen Aliabadi +3 more
doaj
Advanced Engineering Materials, EarlyView.This study examines the mechanical properties of triply periodic minimal surfaces (TPMS)‐based lattices, analyzing 36 architectures in elastic and plastic regimes. It evaluates the applicability of beam‐based scaling laws to TPMS lattices. Rigidity arises from the alignment of members with the load direction and solid regions preventing rotation.
Lucía Doyle +2 more
wiley +1 more source
Between Science and Art: Thin Sound Absorbers Inspired by Slavic Ornaments
Frontiers in Materials, 2019 Acoustic metamaterials have opened fascinating opportunities for manipulation of low-frequency sound and development of compact structures with broadband acoustic performance for noise mitigation applications, room and architectural acoustics.
Anastasiia O. Krushynska
doaj +1 more source
Energies, 2023 The speech intelligibility properties of classrooms greatly influence the learning process of students. Proper acoustics can promote the inclusion of foreign students and children with learning or hearing impairments.
Paolo Croce +3 more
doaj +1 more source
Numerical investigation of the fluid structure acoustics interaction on a simplified car model
Acta Acustica, 2021 Part of vehicle interior noise is caused by the complex turbulent flow field behind the a-pillar and side mirror. It excites the structure of the side window, which radiates noise into the interior. Both aerodynamic pressure excitation and acoustic sound
Katrin Nusser, S. Becker
semanticscholar +1 more source