Results 71 to 80 of about 194,541 (227)

Preparation and sound absorption performance of low‐carbon fly ash cenosphere plates

International Journal of Ceramic Engineering & Science
A series of low‐carbon fly ash cenosphere plates was prepared using solid waste based cementitious material as binder through a simple process; meanwhile, effects of cenosphere's particle size and size distribution on microstructure and properties were ...
Yongli Yi, Chu Li, Yu Han, Jingkai Nie, Chao Fan, Qiang He   +5 more
doaj   +1 more source

Parametric Influence on the Sound Absorption Coefficient of Porous Asphalt

, 2009
This research intends to develop a method for predicting the sound absorption coefficient of various porous highway pavement materials. Since many of the existing prediction models for acoustic properties and traffic noise still have limitations and ...
Punnamee Sachakamol, Liming Dai
core   +1 more source

Theoretical and Experimental Analyses on the Sound Absorption Coefficient of Rice and Buckwheat Husks Based on Micro-CT Scan Data. [PDF]

Materials (Basel), 2023
Sakamoto S, Toda K, Seino S, Hoshiyama K, Satoh T.   +4 more
europepmc   +1 more source

Theoretical and experimental investigation on the sound absorption performance of ultra-thin curled acoustic metasurface

Journal of Low Frequency Noise, Vibration and Active Control
A simplified model of the absorption coefficient of traditional Helmholtz resonators (THR) was established, and the influence of different geometric parameters on the absorption coefficient of THR was analyzed.
Baozhu Cheng, Jiesen Zhang, Yang Liu, Jiaqi Sun, Bin Li, Hong Hou   +5 more
doaj   +1 more source

Basic Study for Acoustic Absorption Characteristics of Soft and Light Granular Material (Basic Characteristics for Expanded Polystyrene Beads)

Journal of Advanced Mechanical Design, Systems, and Manufacturing, 2013
In this paper fundamental sound absorption characteristics of expanded polystyrene beads with several geometries are reported when they are packed in some thick layers with and without back air space.
Shuichi SAKAMOTO, Masaru SASAKI, Itaru KOURAKATA, Kensaku YANAGIMOTO, Seiji WATANABE   +4 more
doaj   +1 more source

Optimized design and experimental validation of sound absorption coefficient performance in aluminium metal foam by spark plasma sintering. [PDF]

Heliyon, 2023
Jafari MJ, Madvari RF, Ebadzadeh T.
europepmc   +1 more source

Sound‐Insulation Performance of Polylactic Acid Parts 3D Printed by Fused Filament Fabrication with Functionally Graded Porous Structure for Effective Noise Reduction

Macromolecular Materials and Engineering
The emergence of 3D printing technology has enabled the fabrication of absorbers with functionally graded (FG) porous structure and controlled porosity that can absorb sound waves across a broader frequency range.
Reza Navidpour, Taher Azdast, Rezgar Hasanzadeh, Milad Moradian, Peyman Mihankhah, Asghar Rasouli   +5 more
doaj   +1 more source

New Composites Derived from the Natural Fiber Polymers of Discarded Date Palm Surface and Pineapple Leaf Fibers for Thermal Insulation and Sound Absorption

Polymers
New composites made of natural fiber polymers such as wasted date palm surface fiber (DPSF) and pineapple leaf fibers (PALFs) are developed in an attempt to lower the environmental impact worldwide and, at the same time, produce eco-friendly insulation ...
Mohamed Ali, Z. Al-Suhaibani, R. Almuzaiqer, Ali Albahbooh, Khaled Al-Salem, A. Nuhait   +5 more
semanticscholar   +1 more source

Optimization of the Sound Absorption Coefficient (SAC) from Cellulose-Silica Aerogel Using the Box-Behnken Design. [PDF]

ACS Omega, 2022
Silviana S, Prastiti EC, Hermawan F, Setyawan A.   +3 more
europepmc   +1 more source

Correction to "Optimization of the Sound Absorption Coefficient (SAC) from Cellulose-Silica Aerogel Using the Box-Behnken Design". [PDF]

ACS Omega, 2022
Silviana S, Prastiti EC, Hermawan F, Setyawan A.   +3 more
europepmc   +1 more source