Results 21 to 30 of about 103,759 (256)

Emission and Absorption Asymmetry in the Quantum Noise of a Josephson Junction [PDF]

Physical Review Letters, 2006
Revtex4, 4 ...
Billangeon, P. -M., Pierre, F., Bouchiat, H., Deblock, R.   +3 more
openaire   +3 more sources

Predicted sound absorption coefficients of absorber materials lined in a chamber

International Journal of Environmental Health Engineering, 2014
Aims: The present study was aimed to measurement of sound absorption coefficient of mineral wool and determination of their absorption ability. Materials and Methods: Mineral wool was used to find noise absorption coefficient.
Farhad Forouharmajd, Parvin Nassiri, Mohammad Reza Monazzam, Mohammadreza Yazdchi   +3 more
doaj   +1 more source

On-demand optimize design of sound-absorbing porous material based on multi-population genetic algorithm

e-Polymers, 2020
Porous material (PM) shows good sound absorption performance, however, the sound absorbing property of PM with different parameters are greatly different.
Wang Yonghua, Liu Shengfu, Wu Haiquan, Zhang Chengchun, Xu Jinkai, Yu Huadong   +5 more
doaj   +1 more source

Sound absorption performance of a conch-imitating cavity structure

Science Progress, 2022
At present, in order to solve noise pollution, many experts are studying methods to improve the noise reduction performance of sound barriers and acoustic devices.
Suchao Xie, Shichen Yang, Hongyu Yan, Zhen Li   +3 more
doaj   +1 more source

Field Measurements for Traffic Noise Reduction in Highway Tunnels Using Closed-Cell Aluminum Foam Board

Applied Sciences, 2022
In order to explore the sound absorption and noise reduction performance of closed-cell aluminum foam in the tunnel, the field test of the sound absorption performance of aluminum foam board was carried out based on the installation of aluminum foam ...
Zanquan Lin, Weipeng Gong, Li Wan, Jiajia Shen, Hu Zhang, Juan Huang, Binbin Zhu   +6 more
doaj   +1 more source

Investigation of micro-perforated plate structure and cavity used as Helmholtz resonator in wheel arch liner

European Mechanical Science
Noise pollution, which is one of the pollutions in the developing world, affects human health and daily life. Cars make up a large part of this noise. This study focused on the transition noise reduction of automobiles by integrating the micro-perforated
Thomas Jean, M. Atakan Akar, Yasemin Gültekin, Umut Kumlu   +3 more
doaj   +1 more source

Design and Simulation Analysis of Sound Absorption Structure for Acoustic Detection-Based Underwater Gliders

水下无人系统学报
The radiation noise of mechanical noise has a significant impact on the acoustic detection performance of acoustic detection-based underwater gliders. In order to address this problem, this paper introduced sound absorption structure into the study of ...
Donghai ZENG, Xinyu WU, Chang YUAN, Yuxuan PENG, Jianxing ZHANG, Baoren LI   +5 more
doaj   +1 more source

Noise Reduction in Tractor Cabs Using Coupled Resonance Acoustic Materials

IEEE Access, 2022
The noise level in a tractor cab directly affects the driving experience. Reducing the noise level in a tractor cab is an important means of improving the image of the product brand and protecting the physical and psychological health of employees.
Zhipeng Wang, Yanyan Zuo, Liming Sun, Xiaohe Zhao   +3 more
doaj   +1 more source

A light‐triggered Time‐Resolved X‐ray Solution Scattering (TR‐XSS) workflow with application to protein conformational dynamics

FEBS Open Bio, EarlyView.
Time‐resolved X‐ray solution scattering captures how proteins change shape in real time under near‐native conditions. This article presents a practical workflow for light‐triggered TR‐XSS experiments, from data collection to structural refinement. Using a calcium‐transporting membrane protein as an example, the approach can be broadly applied to study ...
Fatemeh Sabzian‐Molaei, Fredrik Orädd, Konstantinos Magkakis, Magnus Andersson   +3 more
wiley   +1 more source

Utilizing the phenomenon of diffraction for noise protection of roadside objects

Noise Mapping
Presented here is a constructive solution to the challenge of utilizing the diffraction phenomenon for mitigating noise around roadside objects caused by the movement of vehicles on transportation routes.
Louda Petr, Sharko Oleksandr, Stepanchikov Dmitro, Sharko Artem, Buczkowska Katarzyna   +4 more
doaj   +1 more source