Results 81 to 90 of about 39,171 (345)
THE INSERTION LOSS OF POROELASTIC PLATE SILENCERS IN A FLOW DUCT [PDF]
, 2008 Idealized silencers consisting of cavity-backed clamped porous elastic plates parallel to the direction of flow can result in low frequency attenuation of noise in the duct.
Aygun, Haydar
core +1 more source
Conformally Perforated Shellular Metamaterials with Tunable Thermomechanical and Acoustic Properties
Advanced Functional Materials, EarlyView.This study introduces Conformally Perforated Shellular Metamaterials (CPSMs), which overcome TPMS design limitations by mapping 2D cellular layouts onto 3D surfaces. CPSMs exhibit enhanced elastic stiffness, thermal conductivity, and acoustic performance compared to intact P‐type shellulars, demonstrating their potential as multifunctional ...
Benyamin Shahryari +8 more
wiley +1 more source
An Influence of the Wall Acoustic Impedance on the Room Acoustics. The Exact Solution
Archives of Acoustics, 2017 The Fourier method is applied to the description of the room acoustics field with the combination of uniform impedance boundary conditions imposed on some walls.
Adam BRAŃSKI +2 more
doaj +1 more source
Blind estimation of reverberation time in classrooms and hospital wards [PDF]
, 2012 This paper investigates blind Reverberation Time (RT) estimation in occupied classrooms and hospital wards. Measurements are usually made while these spaces are unoccupied for logistical reasons.
Conetta, R +5 more
core +2 more sources
Acoustic absorption of structural membranes
, 2021 A series of tests have been carried out to measure the absorption coefficient of structural membranes as well as some combinations used to improve ...
openaire +1 more source
A Universal Way to Manipulate Droplet via Light‐Fueled Thermocapillary Convection
Advanced Functional Materials, EarlyView.A non‐contact light‐induced droplet manipulation strategy fueled by mid‐infrared (MIR) light irradiation is introduced. No additional additives and/or complex substrate are required. Here, thermocapillary convection, directly generated by temperature gradient at outer surface of droplet via localized surface heating, plays a key role to propel the ...
Hyesun Hwang +5 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
Seabed Attenuation In Water Saturated Sands On New Jersey Continental Shelf In 50-3000 Hz Band [PDF]
, 2010 The Shallow Water 2006 ocean acoustics experiment on the New Jersey continental shelf was designed in part to determine the frequency dependence of sound speed and attenuation for a sandy sediment in the 50-3000 Hz band.
Knobles, D. P.
core +1 more source
Advanced Functional Materials, EarlyView.Epitaxial piezoelectric α‐quartz/Si BioNEMS sensors, made using soft chemistry, effectively detect the Chikungunya virus. They have a mass sensitivity of 205 pg Hz−1 in liquid and can detect the virus at a limit of 9 ng mL−1. This development enables high‐frequency mass devices for point‐of‐care testing in healthcare and other electronic applications ...
Raissa Rathar +12 more
wiley +1 more source
Jurnal Rekayasa Kimia & Lingkungan, 2009 The probability of application of palm fibre from arenga pinnata appear as best treatment for sound absorption material which can be used in controlling noise.
Zulfian Zulfian, Muhammad Sajidin
doaj +2 more sources