Results 81 to 90 of about 194,541 (227)

Dual‐Scale Spiral Material for Balancing High Load Bearing and Sound Absorption

Advancement of science
Porous materials with sound absorption and load‐bearing capabilities are in demand in engineering fields like aviation and rail transportation. However, achieving both properties simultaneously is challenging due to the trade‐off between interconnected ...
Chenlei Yu, Mingyu Duan, Fei Ti, Fengxian Xin, Guiping Zhao, T. Lu, R. Yu, Moxiao Li, Xin Chen   +8 more
semanticscholar   +1 more source

Sound Absorption Coefficient of Coir Fibre with Poly-Lactic Acid (PLA) / Solehuddin Shuib ... [et al.] [PDF]

, 2018
This project involves the study of the sound absorption coefficient of a composite material made from coir fibre reinforced with poly lactic acid (PLA). Sound absorption coefficient, α is the value of sound that the material can absorb.
Abdullah, Abdul Hakim, Shuib, Solehuddin, Kamaruddin, Nur Syafiqah, Yahya, Muhd Azman   +3 more
core  

Prediction of the Sound Absorption Coefficient of Three-Layer Aluminum Foam by Hybrid Neural Network Optimization Algorithm. [PDF]

Materials (Basel), 2022
Mi H, Guo W, Liang L, Ma H, Zhang Z, Gao Y, Li L.   +6 more
europepmc   +1 more source

Sound absorption coefficients and acoustical design

, 1961
Third International Congress on Acoustics ...
Northwood, T. D., Balachandran, C. G.
openaire   +1 more source

Análise da influência da microgeometria na absorção sonora de materiais porosos de estrutura rígida [PDF]

, 2013
Tese (doutorado) - Universidade Federal de Santa Catarina, Centro Tecnológio. Programa de Pós-Graduação em Engenharia Mecânica, Florianópolis, 2013Este trabalho apresenta procedimentos e métodos de caracterização e otimização de materiais de absorção ...
Mareze, Paulo Henrique
core  

Improvement of Sound-Absorbing Dips in Nonwoven Fabric Sheet with Back Air Space: Division of Back Air Space by Additional Nonwoven Fabric Sheet

Acoustics
This study was conducted to improve the sound absorption dips in nonwoven fabric sheets with a back air space. Considering the particle velocity distribution in the back air space, another nonwoven sheet was added to divide the air space into layers. The
Shuichi Sakamoto, Kodai Sato, Gaku Muroi, Yusuke Nakao, Kaito Kuboki, Nobuhito Taguchi   +5 more
doaj   +1 more source

Electrospinning nanofilms to improve sound absorption of flexible or rigid porous material

Results in Engineering
To further enhance the sound absorption capabilities of porous materials, we employed electrospinning technology to prepare electrospinning nanofilms using polyvinyl butyral solution.
Nansha Gao, Zhicheng Zhang, Jiacheng Guo, Zhenhua Wang, Xiao Liang, Guang Pan   +5 more
doaj   +1 more source

Measurement of the Sound Absorption Coefficient of Rice Straw (Oryza Sativa) Acoustic Material as Noise Dampener

This study determines the sound absorption coefficient values of rice straw acoustic material as a noise reducer using the two-microphone impedance tube method based on ISO 10534-2:1998 standards.
Rauf, Nurlaela, Bandhaso, Yuni
core   +1 more source

Analytical modelling of sound transmission in a lined duct

, 2013
The focus of this thesis is on the prediction of sound attenuation through a lined duct, based on a mathematical model. Ducts with a single section as well as multi-segmented sections are discussed. The duct of interest has a rectangular cross-section as
Ramli, Nabilah binti
core  

Exploring the Sound Absorption Characteristics of Biodegradable Agricultural Wastes, Coconut Fiber, Groundnut Shell, and Sugarcane Fiber

Environmental and Climate Technologies
Noise pollution is a major global health issue, especially in large cities. Its effects go beyond mere annoyance, impacting health, emotions, and behavior.
Gboe Nuushuun Archie, Ružickij Robert, Grubliauskas Raimondas   +2 more
doaj   +1 more source