Investigating the impact of curing system on structure-property relationship of natural rubber modified with brewery by-product and ground tire rubber [PDF]
, 2020 The application of wastes as a filler/reinforcement phase in polymers is a new strategy to modify the performance properties and reduce the price of biocomposites.
Cañavate Ávila, Francisco Javier +5 more
core +3 more sources
Journal of Low Frequency Noise, Vibration and Active Control, 2017 In industrial and architectural applications, noise can be controlled using sound-absorbing materials. Natural materials are now gaining importance in the noise control engineering as they have advantages like low cost, eco-friendly, easy to produce, etc.
Pritesh V Bansod +2 more
doaj +1 more source
High precision hybrid RF and ultrasonic chirp-based ranging for low-power IoT nodes [PDF]
, 2020 Hybrid acoustic-RF systems offer excellent ranging accuracy, yet they typically come at a power consumption that is too high to meet the energy constraints of mobile IoT nodes.
Cox, B +4 more
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Advances in Mechanical Engineering, 2022 A coiled Helmholtz cavity acoustic metamaterial structure, which consists of three perforated plates, two channel layers and an air back cavity, is designed to address the problem of poor absorption of low-frequency band noise by conventional acoustic ...
Hongyu Cui, Zhaoping Hu, Haoming Hu
doaj +1 more source
Damping and sound absorption properties of polymer matrix composites: A review
Polymer Testing, 2021 This review article provides a comprehensive overview of fiber and nanoparticle reinforced polymer matrix composites (PMC) for their damping and sound absorption properties.
Md Abu Shaid Sujon +2 more
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Effect of Thickness and Perforation Size on the Acoustic Absorption Performance of a Micro-Perforated Panel [PDF]
MATEC Web of Conferences, 2021 In current times, noise pollution is especially apparent in urban areas due to rapid development in transportation, industrialization, and urbanization.
Wong Yi-San +3 more
doaj +1 more source
Active diffusers : some prototypes and 2D measurements [PDF]
, 2005 Diffusing devices are used to improve room acoustics in a wide variety of applications. The dispersion generated by current diffuser technologies is often limited to mid-to-high frequencies because low-frequency diffusers are usually too large to be ...
Avis, MR, Cox, TJ, Xiao, L
core +2 more sources
Sound Absorption of Microperforated Panel Made from Coconut Fiber and Polylactic Acid Composite
Journal of Natural Fibers, 2022 This paper highlights the sound absorption performance of microperforated panel (MPP) made from coconut fiber and polylactic acid (PLA) composite named as biocomposite microperforated panel (BMPP).
Desmond Daniel Chin Vui Sheng +2 more
doaj +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
Improved sound absorption with 3D-printed micro-perforated sandwich structures
Journal of Materials Research and TechnologyThe micro-perforated sandwich structure based on triply periodic minimal surfaces (TPMS) is a lightweight, high-strength and multi-functional structure, which integrates heat exchange, impact resistance, energy absorption, etc., and has been widely used ...
Peng-Fei Zhang +8 more
doaj +1 more source