Results 61 to 70 of about 8,799 (301)

Shear horizontal (SH) ultrasound wave propagation around smooth corners [PDF]

, 2014
Shear horizontal (SH) ultrasound guided waves are being used in an increasing number of non-destructive testing (NDT) applications. One advantage SH waves have over some wave types, is their ability to propagate around curved surfaces with little energy ...
Dixon, Steve M., Petcher, P. A., Burrows, S. E. (Susan E.)   +2 more
core   +1 more source

A Fiber Optic Doppler Sensor and Its Application in Debonding Detection for Composite Structures

Sensors, 2010
Debonding is one of the most important damage forms in fiber-reinforced composite structures. This work was devoted to the debonding damage detection of lap splice joints in carbon fiber reinforced plastic (CFRP) structures, which is based on guided ...
Fucai Li, Hideaki Murayama, Kazuro Kageyama, Guang Meng, Isamu Ohsawa, Takehiro Shirai   +5 more
doaj   +1 more source

Deep Learning Inverse Design of Phase‐Change Reconfigurable Terahertz Metadevices for Multidimensional Secure Communication

Advanced Materials, EarlyView.
A deep learning inverse‐design framework is established to create versatile reconfigurable terahertz metadevices. By synergizing deep learning with phase‐change materials, this approach enables on‐demand customization of multidimensional electromagnetic responses.
Yisheng Dong, Xieyu Chen, Aarthy Nagarajan, Yi Yang, Zhihao Wang, Rui Yu, Chuang Zheng, Chunmei Ouyang, Xueqian Zhang, Tun Cao, Ranjan Singh, Zhen Tian   +11 more
wiley   +1 more source

Super‐Resolution Ultrasound Based Cell Tracking With Polymeric Nanobubbles

Advanced Materials, EarlyView.
This study presents a super‐resolution ultrasound platform for tracking cells in vivo. Biocompatible polymeric nanobubbles are used as highly echogenic intracellular labels. Following the injection of cells and microbubbles, ultrasound localization microscopy (ULM) can dynamically match the microvascular architecture and individual cell trajectories ...
Junlin Chen, Xiaoyu Wang, Jilin Fan, Bi Wang, Hanghang Fang, Yurui Wang, Hao Cui, Mohammad Roufarshbaf, Ekaterina Savina, Alexandra Valeske, Quim Peña, Yang Shi, Andreas Herrmann, Twan Lammers, Mathias Hornef, Roman Barmin, Thomas Lisson, Georg Schmitz, Anne Rix, Fabian Kiessling   +19 more
wiley   +1 more source

High sensitivity flexible Lamb-wave humidity sensor with graphene oxide sensing layer [PDF]

, 2015
This paper reports high performance flexible lamb wave sensors with a graphene oxide sensing layer. The devices were fabricated on piezoelectric ZnO thin films deposited on flexible polyimide substrates.
He, Xingli, Xu, Yang, Wang, Wenbo, Chen, Jinkai, Xuan, Weipeng, Fu, Yong Qing, Wang, Xiaozhi, Xu, Zhen, Fu, Y. Q., Luo, Jikui, Luo, J.   +10 more
core   +1 more source

Enhanced Photocatalytic H2O2 Production on Terpyridine‐Based Acrylonitrile‐Linked Covalent Organic Frameworks with Asymmetric Localized Electron Distribution

Advanced Materials, EarlyView.
Asymmetric localized electron distribution has been optimized in covalent organic frameworks to enhance *O2 adsorption and facilitate charge transfer, boosting photocatalytic two‐electron transfer oxygen reduction toward H2O2 production from water and air.
Qinglan Zhao, Mengmeng Ce, Hengtao Lei, Tianyun Jin, Zhipeng Xie, Yushen Liu, Shengyi Yang, Xinwen Ou, Mohammad Farhadpour, Song‐Zhu Kure‐Chu, Xuan‐He Liu, Liang Zhang, Jimmy C. Yu   +12 more
wiley   +1 more source

Xenes for Sustainable Energy: A Roadmap From First‐Principles Design to Practical Deployment

Advanced Materials Interfaces, EarlyView.
Emerging 2D Xenes are advancing from theoretical predictions toward practical energy‐storage and conversion technologies through the integration of first‐principles modelling, experimental synthesis, electrochemical validation, and AI‐assisted materials design, enabling accelerated discovery of high‐performance and sustainable electrochemical systems ...
Onur Karaman, Ceren Karaman
wiley   +1 more source

Guided ultrasonic wave beam skew in silicon wafers [PDF]

, 2018
In the photovoltaic industry, monocrystalline silicon wafers are employed for solar cells with high conversion efficiency. Micro-cracks induced by the cutting process in the thin wafers can lead to brittle wafer fracture.
Marco Pizzolato, Robyr, JL, Jean-Luc Robyr, Fromme, P, Fromme, Paul, Pizzolato, Marco, Robyr, Jean-Luc, Bernard Masserey, Paul Fromme, Pizzolato, M, Masserey, B, Masserey, Bernard   +11 more
core   +1 more source

Accelerating Ultrasonic Guided-Wave Measurements via SNR Enhancement Using Coded Excitation: An Experimental Investigation

Applied Sciences
Conventional excitation signals used in ultrasonic measurements, such as the one-cycle pulse, produce waveforms that experience significant attenuation and dispersion during propagation in highly attenuative materials, resulting in a low signal-to-noise ...
Chengxiang Peng, Paul Annus, Marek Rist, Raul Land, Madis Ratassepp   +4 more
doaj   +1 more source

Ultrasonic Guided Wave Propagation through Welded Lap Joints

Metals, 2016
The objective of the research presented here is the investigation of ultrasonic guided wave (UGW) propagation through the lap joint welded plates used in the construction of a storage tank floors.
Audrius Jankauskas, Liudas Mazeika
doaj   +1 more source