Results 201 to 210 of about 2,706,203 (393)

A Generative AI‐Assisted Piezo‐MEMS Ultrasound Device for Plant Dehydration Monitoring

Advanced Science, EarlyView.
This study introduces a complementary metal–oxide–semiconductor (CMOS)‐compatible wearable piezoelectric micromachined ultrasound transducers (PMUTs) that sandwiches the leaf (PMUT–Leaf–PMUT, PLP) and employs generative artificial intelligence for real‐time analysis.
Kaustav Roy, Darren Sim, Luwei Wang, Zixuan Zhang, Xinge Guo, Yao Zhu, Sanjay Swarup, Chengkuo Lee   +7 more
wiley   +1 more source

Sound Absorption Improvement in Porous Ferroelectret Polyethylene with Effective Piezoelectric Mechanism. [PDF]

Polymers (Basel), 2022
Yousry YM, Statharas EC, Yao K, Mohamed AM, Lim PC, Tay FEH.   +5 more
europepmc   +1 more source

Some Experiments in Underwater Sound Absorption [PDF]

, 1961
R. A. Rubega, A. Culver
openalex   +1 more source

Acoustic Metasurface for Space‐time Reflection Manipulation

Advanced Science, EarlyView.
This article introduces a novel space‐time acoustic metasurface (STAM) to overcome the limitations of bulky structures in sound modulation. Using a programmable piezoelectric array, the STAM precisely controls waterborne acoustic waves through spatiotemporal phase modulation.
Yunhan Yang, Han Jia, Jiuyang Lu, Yuzhen Yang, Tuo Liu, Jun Yang, Zhengyou Liu   +6 more
wiley   +1 more source

Optimized design and experimental validation of sound absorption coefficient performance in aluminium metal foam by spark plasma sintering. [PDF]

Heliyon, 2023
Jafari MJ, Madvari RF, Ebadzadeh T.
europepmc   +1 more source

Acoustic response of a rigid frame porous medium slab with a periodic set of inclusions

, 2007
The acoustic response of a rigid frame porous slab with a periodic set of inclusions is calculated by use of a multipole method. The acoustic properties, in particular the absorption, of such a structure are then derived and studied.
De Ryck, Laurent, Groby, Jean-Philippe, Lauriks, Walter, Wirgin, Armand   +3 more
core   +1 more source

Nature‐Inspired Nanostructures from Multiple‐Species Biomembranes: Rational Engineering and Therapeutic Applications in Tumor‐Targeted Nanomedicine

Advanced Science, EarlyView.
Naturally derived biomembrane nanostructures by mimicking evolutionarily optimized biological architectures could effectively suppress tumor growth and have emerged as a compelling strategy in translational biomedicine. This review provides a systematic overview of rational design and underlying antitumor therapeutic mechanisms of mammalian cells ...
Xiaodan Wei, Chi Wang, Xiangyan Chen, Yuanyuan Zhu, Mei Yang, Ningxi Li, Honglin Huang, Guangjian Zhang, Mingzhen Zhang, Yiyao Liu, Rui Gao   +10 more
wiley   +1 more source

On-demand prediction of low-frequency average sound absorption coefficient of underwater coating using machine learning

Results in Engineering
This study proposes an underwater coating with sound absorption ability in the middle-to-low frequency range and establishes an acoustic theoretical model combining the equivalent medium theory and the transfer matrix method.
Nansha Gao, Mou Wang, Xiao Liang, Guang Pan   +3 more
doaj  

Digitally Controlled Piezoelectric Metamaterial for Low-Frequency and High-Efficiency Sound Absorption. [PDF]

Materials (Basel)
Zhang X, Nie J, He J, Lin F, Liu Y.
europepmc   +1 more source

A Critical Review on Hygrothermal and Sound Absorption Behavior of Natural-Fiber-Reinforced Polymer Composites. [PDF]

Polymers (Basel), 2022
Bhuvaneswari V, Devarajan B, Arulmurugan B, Mahendran R, Rajkumar S, Sharma S, Mausam K, Li C, Eldin ET.   +8 more
europepmc   +1 more source