Results 61 to 70 of about 399,393 (305)
Experimental analysis on air-to-water sound transmission loss in shallow water [PDF]
MATEC Web of Conferences, 2019 Research on the propagation characteristics of air-to-water sound transmission is of great importance to the detection of aerial target from underwater. In order to study the propagation characteristics of air-to-water sound transmission in shallow water,
Peng Zhaohui +2 more
doaj +1 more source
Regression curves for vibration transmission across junctions of heavyweight walls and floors based on finite element methods and wave theory [PDF]
, 2016 Sound insulation prediction models in European and International standards use the vibration reduction index to calculate flanking transmission across junctions of walls and floors.
Crispin, Charlotte +3 more
core +2 more sources
Advanced Materials, EarlyView.A flexible and lightweight acoustic metamaterial composed of air cavities encased in polydimethylsiloxane (PDMS) is introduced to enhance ultrasound power transfer. The metamaterial leverages the strong reflectivity of air cavity boundaries to concentrate incoming ultrasound, thereby improving the performance of piezoelectric energy harvesters ...
Hyung‐Suk Kwon +4 more
wiley +1 more source
Sound Transmission Loss Analysis on Building Materials
International Journal of Automotive and Mechanical Engineering, 2018 This study is mainly to determine the sound transmission loss (STL) performance of the four selected building materials using the impedance tube. The four building materials are; autoclaved aerated concrete (AAC), laminated glass, expanded polystyrene and rockwool. Transmission loss occurs when a sound goes through a partition or barrier. The specimens
Tan Wei Hong, C. F. Sin
openaire +2 more sources
Advanced Materials, EarlyView.Metasurface‐engineered NC‐TENG arrays integrate tactile pressure mapping, non‐contact gesture sensing, and acoustic signal readouts in one ultrathin module, and outperforms pristine PDMS in terms of electrical output and real‐time spatial mapping for next‐gen wearables.
Injamamul Arief +12 more
wiley +1 more source
Study on Nature Fiber Composite for Noise Material Control
International Journal of TechnologyTransportation tracks of railways and highways are the highest noise pollution contribution to the inhabitant urban due to the sources near residential areas. Many researchers proved that the composite material could help reduce the noise by 30%. This
Muhammad Zulkarnain +5 more
doaj +1 more source
Advanced Materials, EarlyView.The perspective presents an integrated view of neuromorphic technologies, from device physics to real‐time applicability, while highlighting the necessity of full‐stack co‐optimization. By outlining practical hardware‐level strategies to exploit device behavior and mitigate non‐idealities, it shows pathways for building efficient, scalable, and ...
Kapil Bhardwaj +8 more
wiley +1 more source
Tailoring Plate Thickness of a Helmholtz Resonator for Improved Sound Attenuation [PDF]
, 2016 A Helmholtz resonator with flexible plate attenuates noise in exhaust ducts, and the transmission loss function quantifies the amount of filtered noise at a desired frequency.
Duncan, Scott, Nudehi, Shahin
core +2 more sources
Advanced Materials Technologies, EarlyView.This critical review presents a comprehensive roadmap for the precision 3D printing of cellulose. Quantitative correlations link ink formulation and rheological properties to print fidelity and final material performance. This framework guides the development of advanced functional materials, from biomedical scaffolds to electromagnetic shielding ...
Majed Amini +3 more
wiley +1 more source
Optimum design of structures of composite materials in response to aerodynamic noise and noise transmission [PDF]
Elastic wave propagation and attenuation in a model fiber matrix was investigated. Damping characteristics in graphite epoxy composite materials were measured.
Tsui, C. Y., Yang, J. C. S.
core +1 more source