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Louvred Noise Barrier for Traffic Noise Reduction

open access: yesThe Baltic Journal of Road and Bridge Engineering, 2021
Environmental issues near roads become more and more important in our society daily life. One of the most critical environmental issues is traffic noise. The present paper study louvred noise barrier designed by authors.
Tomas Astrauskas   +3 more
doaj   +5 more sources

Lowering the thermal noise barrier in functional brain mapping with magnetic resonance imaging. [PDF]

open access: yesNat Commun, 2021
Functional magnetic resonance imaging (fMRI) has become an indispensable tool for investigating the human brain. However, the inherently poor signal-to-noise-ratio (SNR) of the fMRI measurement represents a major barrier to expanding its spatiotemporal ...
Vizioli L   +6 more
europepmc   +2 more sources

Numerical simulation on influence of noise barrier on thermal performance for natural draft wet cooling towers

open access: yesCase Studies in Thermal Engineering, 2021
The noise barrier installed around the natural draft wet cooling tower can reduce the operating noise, but it will lead to an adverse effect on the thermal performance of the tower.
Zhirui Zheng   +5 more
doaj   +2 more sources

Circular active noise barrier using theoretical control filter considering interaction between speaker and barrier [PDF]

open access: yesScientific Reports, 2023
A circular active noise barrier using a theoretically calculated control filter without real-time adaptation was proposed for noise reduction in a specific outdoor space.
Sanghyeon Lee, Youngjin Park
doaj   +2 more sources

Lifespan Prediction Technique for Digital Twin-Based Noise Barrier Tunnels

open access: yesSustainability, 2020
Noise barrier tunnels (NBTs) comprise prefabricated components that are easily replaceable, reusable, and have the capacity to improve performance when applied to components as their replacements.
Jinwooung Kim
exaly   +2 more sources

Efficiency evaluation of a noise barrier

open access: yesJournal of Environmental Engineering and Landscape Management, 2007
Mechanization of industrial and agricultural production, increase of urban and rural traffic flows, modernization of domestic facilities cause a rapid expansion of acoustic discomfort zones.
Pranas Baltrėnas   +4 more
doaj   +3 more sources

Application of Recycled Carpet Composite as a potential Noise Barrier in Infrastructure Applications

open access: yesRecycling, 2019
In this work, recycling of post-consumer carpets into structural composites using a modified vacuum assisted resin transfer molding process has been demonstrated.
Kunal Mishra, Ranji K. Vaidyanathan
doaj   +2 more sources

Calculation of Noise Barrier Insertion Loss Based on Varied Vehicle Frequencies

open access: yesApplied Sciences, 2018
A single frequency of 500 Hz is used as the equivalent frequency for traffic noise to calculate the approximate diffraction in current road barrier designs.
Haibo Wang, Peng Luo, Ming Cai
doaj   +2 more sources

Calculation of the Insertion Loss of Barriers on Rigid Ground in the Time Domain

open access: yesApplied Sciences, 2022
This paper presents a method for calculating the insertion loss of barriers on the ground. The method combines the classic imaging method for an analysis of sound propagation with the secondary source model for diffraction by barriers in the time domain,
Jun Gu, Xuelei Feng, Yong Shen
doaj   +1 more source

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