Results 101 to 110 of about 5,453 (264)

Collimated beam formation in 3D acoustic sonic crystals

New Journal of Physics
We demonstrate strongly collimated beam formation, at audible frequencies, in a three-dimensional acoustic phononic crystal where the wavelength is commensurate with the crystal elements; the crystal is a seemingly simple rectangular cuboid constructed ...
A L Vanel, M Dubois, C Tronche, S Fu, Y-T Wang, G Dupont, A D Rakić, K Bertling, R Abdeddaim, S Enoch, R V Craster, G Li, S Guenneau, J Perchoux   +13 more
doaj   +1 more source

3D‐Printed Dual‐Doped Ag2Se‐Based Thermoelectric Films With Enhanced Thermal Stability

Advanced Materials Technologies, EarlyView.
Sb–Se dual doping enhances the thermal stability of Ag2Se‐based thermoelectric systems. The compositionally tuned nano‐ink is printed into flexible films by direct ink writing (DIW), retaining improved thermoelectric properties after annealing up to 400°C.
Ahasun Habib Hridoy, Nishat Paul, Naimul Arefin, Axel Lopez, Peiran Wei, Brandon Dumars, Yan Chen, Mortaza Saeidi, Minxiang Zeng   +8 more
wiley   +1 more source

Tumbling Magnetic Microrobots for Targeted In Vivo Drug Delivery in the GI Tract

Advanced Robotics Research, EarlyView.
We introduce a microrobot design and integrated system for on‐demand targeted drug release in the gastrointestinal tract. The microrobot has an embedded magnet for actuation with external magnetic fields and is visualized in real time using ultrasound. It has two drug release ports sealed with a thermally sensitive wax. Local heating of the wax using a
Aaron C. Davis, Luis Carlos Sanjuan Acosta, Shubh P. Mehta, Baiyan Qi, Yang Yang, Luis Solorio, Craig J. Goergen, David J. Cappelleri   +7 more
wiley   +1 more source

GPR124 Alleviates Blood–Brain Barrier Disruption by Enhancing Microvascular Endothelial Function after Traumatic Brain Injury

Advanced Science, EarlyView.
Our study reveals the protective role of GPR124 in maintaining BBB integrity and promoting neurological recovery following TBI. It makes a significant contribution by uncovering a novel molecular interaction between GPR124 and FGFBP1 and linking this to activation of the Wnt/β‐catenin signaling pathway in vascular repair mechanisms.
Chen Wang, Lin Cai, Qiuyuan Gong, Yang Yang, Yuqing Liang, Xinyu Niu, Lai Wei, Ze Liu, Shengju Wu, Yinghui Men, Yaohui Tang, Jun Ding, Hengli Tian, Hao Chen   +13 more
wiley   +1 more source

Numerical Evaluation of Sound Attenuation Provided by Periodic Structures

Archives of Acoustics, 2013
The use of periodic structures as noise abatement devices has already been the object of considerable research seeking to understand its efficiency and see to what extent they can provide a functional solu- tion in mitigating noise from different ...
Mario MARTINS, Luis GODINHO, Luis PICADO-SANTOS   +2 more
doaj  

Improving Insertion Loss of Sonic Crystal Active Noise Barrier by Reinforcement Learning and Finite Difference Time Domain Simulations

IEEE Access
Sonic crystal noise barriers (SCNB) have emerged as a promising solution for mitigating traffic noise pollution. These barriers utilize periodic structures to selectively reflect acoustic waves at specific target frequencies, offering the advantage of ...
David Ramirez-Solana, Jaime Galiana-Nieves, Javier Redondo, Agostino Marcello Mangini, Maria Pia Fanti   +4 more
doaj   +1 more source

Design of Sonic Cage to attenuate noise in Mines using Sonic Crystal and Melamine Foam

Journal of Physics: Conference Series
Abstract Sonic crystals (SCs) are structures made of sound scatterers periodically arranged in a square or triangular lattice. Recent research on sonic crystals has demonstrated that they are efficient materials for controlling the propagation of sound.
M. K. Swain, H. K. Naik, D. P. Jena
openaire   +1 more source

Chemoproteomic Identification of AKT2 as a Paclitaxel‐Binding Protein via C─C Bond‐Linked Probe PTX‐4 in Paclitaxel‐Resistant Breast Cancer

Advanced Science, EarlyView.
ABSTRACT Breast cancer remains one of the most prevalent malignancies among women, and taxane‐based chemotherapies such as paclitaxel and docetaxel are central to standard treatment regimens. However, drug resistance in breast cancer limits therapeutic efficacy and contributes to recurrence and metastasis.
Kai Wang, Yuqing Yuan, Wei Shen, Xiuxiu Yang, Xiaokang Wu, Haihua Zhou, Yi Hu, Qing Zhu   +7 more
wiley   +1 more source

Cylindrical acoustic wavefront generation by means of ionic speakers

Revista Elektrón, 2018
We present the use of ionic transducers to generate acoustic waveforms of cylindrical shape. We resorted to “cold discharge” transducers where momentum transfer from ions to neutral molecules is the main sound-generating process. Since the electrodes can
Pablo Gomez, Enrque D'onofrio, Guillermo Daniel Santiago   +2 more
doaj  

Topological rainbow trapping of dual-band valley-locked acoustic waves

AIP Advances
The presence of valley-locked waveguides in topological insulators offers innovative possibilities for the modulation of wave propagation, addressing challenges associated with waveguides with limited transmission pathways and the loss of acoustic energy
Shiyao Tang, Jianhua Lin, Rengui Bi, Baizhan Xia   +3 more
doaj   +1 more source