Results 121 to 130 of about 399,393 (305)

All‐in‐One Underwater Quality Evaluation Metamaterial With Mechanical Robustness, Sound Attenuation, and Diffuse Reflection

Advanced Science, EarlyView.
In this work, a bioinspired all‐in‐one underwater quality evaluation metamaterial, combining sound attenuation, diffuse reflection, and mechanical robustness, is proposed based on jumping spider locomotion and human skeletal biomechanics. Meanwhile, a CNN‑driven quality evaluation framework is established for theoretically dimension‐reduced ...
Hongze Li, Zhenyu Li, Jinshui Yang, Jianhao Wu, Yidan Chen, Linzhi Wu, Hong Hu, Penglin Gao, Yegao Qu   +8 more
wiley   +1 more source

Higher order mode propagation in nonuniform circular ducts [PDF]

Higher order mode propagation in a nonuniform circular duct without mean flow was investigated. An approximate wave equation is derived on the assumptions that the duct cross section varies slowly and that mode conversion is negligible. Exact closed form
Cho, Y. C., Ingard, K. U.
core   +1 more source

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
core   +2 more sources

Smart Nanotechnologies for Multimodal Neuromodulation and Brain Interfacing

Advanced Science, EarlyView.
Recent advances in smart nanotechnologies are expanding the toolbox for brain interfacing, from wireless neuromodulation and high‐resolution sensing to targeted delivery within the central nervous system. By combining responsive nanomaterials with bioinspired design, these platforms enable multimodal interactions with neurons and glia, while also ...
Tommaso Curiale, Marie Celine Lefevre, Alessio Carmignani, Maria Cristina Ceccarelli, Matteo Battaglini, Attilio Marino, Gianni Ciofani   +6 more
wiley   +1 more source

Broadband low-frequency diffuse sound transmission loss of multilayer composite plate-type metamaterials

Composites Part C: Open Access
Low-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, Shuaixing Wang, Gaoge Liang, Quanxing Liu, Yong Xiao   +4 more
doaj   +1 more source

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

Dual Band Optimization and Defect Engineering Enable Ultrahigh Thermoelectric Performance in Filled Skutterudites

Advanced Energy Materials, EarlyView.
A synergistic dual‐modulation strategy is employed in Yb‐filled skutterudites through concurrent indium filling and tellurium doping to optimize electronic band structure and phonon scattering. Cooperative band convergence and nanoprecipitate‐induced lattice distortions yield a high zT of 1.72 and enable an ultra‐efficient thermoelectric device with 8 ...
Xuri Rao, Jianrui Wang, Xiao‐Bo Tan, Rui‐Heng Li, Huangshui Ma, Yu Yin, Fan Feng, Pingan Song, Min Hong, Jiaqing He, Ran Ang   +10 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, Parvin Nassiri, Homayoon Ahmad Panahi, Lobat Taghavi, Saeed Bazgir   +4 more
doaj  

Flexible Memory: Progress, Challenges, and Opportunities

Advanced Intelligent Discovery, EarlyView.
Flexible memory technology is crucial for flexible electronics integration. This review covers its historical evolution, evaluates rigid systems, proposes a flexible memory framework based on multiple mechanisms, stresses material design's role, presents a coupling model for performance optimization, and points out future directions.
Ruizhi Yuan, Sen Chen, Minghui Guo, Ziliang Cui, Yujie Du, Jing Liu   +5 more
wiley   +1 more source

Sound Transmission Loss of a Sandwich Plate with Adjustable Core Layer Thickness. [PDF]

Materials (Basel), 2020
Ehrig T, Dannemann M, Luft R, Adams C, Modler N, Kostka P.   +5 more
europepmc   +1 more source