Results 41 to 50 of about 1,550,252 (358)
Materials & Design, 2019 Reticulated foams are widely used in noise control applications. However, difficulties in controlling the foaming process makes it difficult to control the microstructure and consequently the absorption characteristics of stochastic foams.
Sagar Deshmukh +2 more
doaj +1 more source
Sound Absorption of Hemp Fibers (Cannabis Sativa L.) Based Nonwoven Fabrics and Composites: A Review
Journal of Natural Fibers, 2022 Compared to the commonly used synthetic fibrous materials, natural fiber represents an eco-friendly solution in various engineering fields. Noise control is an important application of natural fibers due to the unique acoustic characteristics. Studies on
Jiangbo Liao +2 more
doaj +1 more source
Acoustic Characterization of Sugarcane Bagasse Particleboard Panels (Saccharum officinarum L) [PDF]
Materials Research, 2015 The use of sugarcane bagasse minimizes the environmental impact and contributes to the creation of a new product with low density, good sound absorption capacity and can improve the acoustic conditions of buildings.
Sylvia Thais Martins Carvalho +5 more
doaj +2 more sources
Applied Sciences, 2021 This study aimed to reveal the influence of sound absorption in general dwellings on the subjective evaluation of acoustics. First, a subjective experiment was conducted using a full-scale room model. The results indicate that the feelings of silence and
Kazuma Hoshi +3 more
doaj +1 more source
Auditorium Acoustics 2008, 2023 Two coupled volume halls for music has been accomplished in Oslo the last year where we have been acoustical consultants. Scene II (two) is a 440 seat multi purpose hall in the new Oslo Opera.
A. Buen, La Brekke
semanticscholar +1 more source
Performance of T-shape barriers with top surface covered with absorptive quadratic residue diffusers [PDF]
, 2008 A previous paper [Applied Acoustics 66 (2005) 709–730] has shown that adding a quadratic residue diffuser (QRD) to the top of a T-shape barrier can provide better barrier performance than an equivalent purely absorptive barrier.
Lam, YW, Monazzam, M
core +2 more sources
Broadband low-frequency sound absorption in open tunnels with deep sub-wavelength Mie resonators
Frontiers in Physics, 2022 We report both experimentally and numerically that near-perfect absorption of low-frequency sound is realized in an open tunnel embedded with two deep sub-wavelength (0.085 λ) Mie resonators. The resonators are composed of a multiple-cavity structure and
Jianping Xia +14 more
doaj +1 more source
The Application of Nanofibrous Resonant Membranes for Room Acoustics
Nanomaterials, 2023 Solitary sound absorbing elements exist; however, their construction is massive and heavy, which largely limits their use. These elements are generally made of porous materials that serve to reduce the amplitude of the reflected sound waves.
K. Kalinova
semanticscholar +1 more source
Acoustic absorption of hemp-lime construction [PDF]
Construction and Building Materials, 2016 Abstract Hemp-lime concrete is a sustainable alternative to standard wall construction materials. It boasts excellent hygrothermal properties in part deriving from its porous structure. This paper investigates the acoustic properties of hemp-lime concrete, using binders developed from hydrated lime and pozzolans as well as hydraulic and cementicious ...
Kinnane, Oliver +4 more
openaire +4 more sources
Effective acoustic absorption of ETFE membranes and cushions
Proceedings of the 10th Convention of the European Acoustics Association Forum Acusticum 2023, 2022 In this paper, we report on measurements of the acoustic absorption coefficient of ETFE membranes and cushions by two types of measurement approaches. The experimental results are compared with material simulations in ODEON® room acoustics ver.17. The absorption was determined via the assumption that the energy which passes through the foil can be ...
Gharibian Lavasani, Sayyed Majid +5 more
openaire +3 more sources