Results 21 to 30 of about 1,377,424 (247)
Floquet topological insulators for sound [PDF]
Nature Communications, 2016 AbstractThe unique conduction properties of condensed matter systems with topological order have recently inspired a quest for the similar effects in classical wave phenomena. Acoustic topological insulators, in particular, hold the promise to revolutionize our ability to control sound, allowing for large isolation in the bulk and broadband one-way ...
Romain Fleury +2 more
openaire +4 more sources
Buildings, 2023 The sound insulation of the façade and its elements is a very important characteristic, as it largely determines the degree of sound protection of the building’s interior from external noise sources.
Daniel de la Prida +5 more
doaj +1 more source
Living with helicopter noise : evaluating sound insulation techniques for domestic dwellings using real helicopters [PDF]
, 2011 Specific remedial works designed to improve sound installation and reduce the noise level produced by helicopters inside dwellings are described. The theoretical problems and practical solutions to installing high performance acoustic insulation to a ...
Kerry, G, Lomax1, C, Waddington, DC
core +2 more sources
Study on Sound Transmission across a Floating Floor in a Residential Building by Using SEA
Archives of Acoustics, 2021 For the purpose of reducing the impact noise transmission across floating floors in residential buildings, two main sound transmission paths in the floating floor structure are considered: the stud path and the cavity path. The sound transmission of each
Xianfeng HUANG +3 more
doaj +1 more source
Determination of the airborne sound insulation of a straw bale partition wall [PDF]
, 2017 This paper describes the results of a scientific project focused on determining of the Airborne Sound Insulation of a peripheral non-load bearing wall made of straw bales expressed by Weighted Sound Reduction Index.
Fabian, Radek +2 more
core +1 more source
Acoustical properties of some modern partitioning glass walls systems – case study [PDF]
Constructii: Journal of Civil Engineering Research, 2014 The case study presents the results of laboratory measurements carried out for the determination of airborne sound insulation properties for various modern partition glass walls systems.
Ioana-Mihaela ALEXE +1 more
doaj
Sound insulation properties of a spherical structure of subwavelength size
AIP Advances, 2019 Because of the limited sound insulation provided by a single material, it is common to use multiple layers of materials to improve the effects of sound insulation, but multiple materials increase the size of the model.
Jianning Han +5 more
doaj +1 more source
Sound Insulation Performance of Structural Wood Wall Integrated with Wood Plastic Composite
Journal of Bioresources and Bioproducts, 2019 The sound insulation performance is an important technical index for evaluating the physical property of the building wall. Three kinds of structural wood walls integrated with wood plastic composite (WPC) were designed.
Xiaojun Yang +3 more
doaj +1 more source
Ventilated acoustic metasurface with low-frequency sound insulation.
JASA Express Letters, 2023 A ventilated acoustic metasurface consisting of a membrane covered with a combination of different depth sub-chambers is proposed. It can achieve at least a 5 dB sound insulation acoustic performance in the wide frequency range from 100 to 1700 Hz, in ...
Y. Zhang +7 more
semanticscholar +1 more source
Performance Research and Optimization of Sound Insulation Hood of Air Compressor Unit
Applied Sciences, 2021 The noise control of a compressor has always been a hot spot in the field of industrial application. In this paper, the air inlet structure of the sound insulation hood of an air compressor unit was studied and improved. Acoustic finite element numerical
Huagen Wu +5 more
doaj +1 more source