Results 121 to 130 of about 400,889 (304)
Design of phononic crystal for enhancing low-frequency sound absorption in mufflers
Scientific ReportsTo enhance the low-frequency sound absorption capabilities of expansion chamber mufflers, a novel Helmholtz-ring phononic crystal cell was developed. This innovative design integrates ring Helmholtz resonators as the phononic crystal scatterer, which is ...
Yang Bai, Yuehua Chen, Jiahui Zheng
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Air transparent soundproof window
, 2013 A soundproof window or wall which is transparent to airflow is presented. The design is based on two wave theories of diffraction and acoustic metamaterials.
Kim, Sang-Hoon, Lee, Seong-Hyun
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Advanced Science, EarlyView.Nuclear mechanical properties are inherently scale‐dependent, arising from a hierarchical architecture that spans DNA, chromatin, the nuclear envelope, and condensates. Experimental techniques and theoretical models are integrated into a cohesive multiscale framework linking nanoscale structural features to organelle‐level mechanical behavior.
Xinran Liu +15 more
wiley +1 more source
Noise Reduction in Double‐Panel Structures by Cavity and Panel Resonance Control [PDF]
, 2011 This paper presents an investigation of the cavity and the panel resonance control in a double‐panel structure. The double‐panel structure, which consists of two panels with air in the gap, is widely adopted in many applications such as aerospace due to ...
Berkhoff, Arthur, Ho, Jen-Hsuan
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Advanced Science, EarlyView.SpaMode introduces a versatile framework for spatial multi‐omics integration across vertical, horizontal, and mosaic scenarios. By disentangling modality‐invariant and variant features through a mixture‐of‐experts mechanism, it adaptively reconfigures spatially heterogeneous signals.
Xubin Zheng +6 more
wiley +1 more source
Composites Part C: Open AccessLow-frequency sound insulation is one of the most challenging problems in the field of noise control engineering because of the classical mass law. Recent studies have shown that acoustic metamaterials can achieve a sound transmission loss (STL) higher ...
Boxin Chang +4 more
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Field sound transmission loss measurements
, 1985 Measurements of field sound transmission loss in a number of buildings are presented, together with commentary pointing out where design errors were made and how the designs could have been improved.
openaire +1 more source
Recent Enhancements to the NASA Langley Structural Acoustics Loads and Transmission (SALT) Facility [PDF]
The Structural Acoustics Loads and Transmission (SALT) facility at the NASA Langley Research Center is comprised of an anechoic room and a reverberant room, and may act as a transmission loss suite when test articles are mounted in a window connecting ...
Allen, Albert R. +2 more
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Advanced Science, EarlyView.ZnSb reduces carrier concentration and suppresses Te volatilization, while Se substitution within QLs softens phonons and enhances anharmonicity. Swapped bilayers near twin boundaries strengthen phonon scattering and interlayer bonding. As a result, the optimal sample achieves an ultra‐high zT ∼1.51, cooling temperature difference of ∼70 K, power ...
Ruiheng Li +12 more
wiley +1 more source
Feasibility study of silica aerogel nanocomposites application to enhance acoustic properties
سلامت و محیط, 2020 Background and Objective: Noise pollution is one of the serious environmental issue. Sound control technologies based on sound absorption and sound insulation are considered as the two widely used methods.
Mansoureh Hamidi +4 more
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