Results 11 to 20 of about 7,658,431 (298)

Assessment of the sound reduction index provided by noise barriers with low sound insulation

open access: yesApplied Acoustics
[EN] In the realm of environmental noise control, the emergence of metamaterial-based acoustic barriers, such as sonic crystal noise barriers (SCNBs), represents a significant innovation due to their unique ability to manipulate sound waves. Despite their growing popularity, accurately assessing their efficacy remains a challenge. In one of the current
Jaime Galiana Nieves   +4 more
openaire   +4 more sources

Sound Reduction Index of Interior Door by Aperture Sizes at Door's Bottom

open access: yesTransactions of the Korean Society for Noise and Vibration Engineering, 2010
The Sound reduction indices(SRIs) of interior door with 13 different size apertures are measured in acoustic chamber. Also, as a theoretical approach, the SRIs are estimated using Gomperts` theory. In this study, the aperture of interior door is focused on the lower part of door leaf which is well known as a main cause to deteriorate the sound ...
Myung-Jun Kim
openaire   +4 more sources

Research of Chosen Acoustics Descriptors of Developed Materials from Old Automobile Recycled Materials †

open access: yesRecycling, 2018
Legislative regulations and standards have been approved for noise control, aimed at controlling noise minimization. This problem is also under the public interest, because noise is increasing in many counties.
Miroslav Badida   +4 more
doaj   +1 more source

Finite element modeling for predicting sound insulation of fixed windows in a laboratory environment

open access: yesFrontiers in Built Environment, 2022
This paper presents discussion of the prediction capability of three numerical models using finite element method for predicting the sound reduction index (SRI) of fixed windows having different dimensions in a laboratory environment. The three numerical
Marie Mimura   +3 more
doaj   +1 more source

NIS method for uncertainty estimation of airborne sound insulation measurement in field

open access: yesInternational Journal of Metrology and Quality Engineering, 2017
In structures, airborne sound insulation is utilized to characterize the acoustic nature of barriers between rooms. However, the assessment of sound insulation index is once in a while troublesome or indeed, even questionable, both in field and ...
El-Basheer Tarek M.   +2 more
doaj   +1 more source

Standard sample evaluation method for noise annoyance suppression from audio injection

open access: yesXibei Gongye Daxue Xuebao, 2021
Noise control technology based on sound energy reduction uses sound pressure level as an evaluation index, and the addition control technology proposed in recent years uses annoyance as an evaluation index.
Chen Ke'an   +5 more
doaj   +1 more source

Perforated Steel Stud to Improve the Acoustic Insulation of Drywall Partitions

open access: yesAcoustics, 2021
Steel studs are an inevitable part of drywall construction as they are lightweight and offer the required structural stability. However, the studs act as sound bridges between the plasterboards, reducing the overall sound insulation of the wall ...
Arun Arjunan   +2 more
doaj   +1 more source

Sound Insulation of Façade Element with Triple IGU

open access: yesBuildings, 2022
Sound insulation design for structural glazed façade is an important task in environmental noise control, as increased continuously repeated noise is a significant factor impacting on people’s well-being and is associated with a negative impact on their ...
Raimondas Bliūdžius   +3 more
doaj   +1 more source

Prediction of Sound Insulation of Sandwich Partition Panels by Means of Artificial Neural Networks

open access: yesArchives of Acoustics, 2017
The paper presents the application of Artificial Neural Networks (ANN) in predicting sound insulation through multi-layered sandwich gypsum partition panels. The objective of the work is to develop an Artificial Neural Network (ANN) model to estimate the
Naveen GARG   +2 more
doaj   +1 more source

Acoustic Characterization of Some Steel Industry Waste Materials

open access: yesApplied Sciences, 2021
From a circular economy perspective, the acoustic characterization of steelwork by-products is a topic worth investigating, especially because little or no literature can be found on this subject.
Elisa Levi   +2 more
doaj   +1 more source

Home - About - Disclaimer - Privacy