Results 21 to 30 of about 984,214 (255)
Study and Improvement of Acoustic Conditions in Public Spaces of Shopping Malls
Acoustics, 2021 Acoustic comfort in shopping malls is one of the aspects that influence the shopping environment. Making enjoyable and comfortable retail and public spaces is demanded when designing and managing properties.
Nikolay Kanev
doaj +1 more source
, 2022 Compared to geometrical acoustics, wave-based methods which solve the wave equation either in the time domain or in the frequency domain are known for their high accuracy.
Lokki, Tapio +5 more
core +1 more source
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
Research Progress on Sound Absorption of Electrospun Fibrous Composite Materials
Nanomaterials, 2022 Noise is considered severe environmental pollutant that affects human health. Using sound absorption materials to reduce noise is a way to decrease the hazards of noise pollution.
Xiuhong Li +5 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
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
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
Frontiers in Physics, 2022 We report the numerical and experimental realization of a type of ultrathin planar wall with low-frequency dual-band sound absorption. The proposed planar wall is constructed by a periodic subwavelength unit cell (with a thickness of λ/19) which consists
Yu-wei Xu +10 more
doaj +1 more source
Bilayer ventilated labyrinthine metasurfaces with high sound absorption and tunable bandwidth
Scientific Reports, 2021 The recent advent of acoustic metamaterials offers unprecedented opportunities for sound controlling in various occasions, whereas it remains a challenge to attain broadband high sound absorption and free air flow simultaneously.
Jiayuan Du +5 more
doaj +1 more source