Results 151 to 160 of about 145,304 (328)

Evaluation of the Transverse Crack Depth of Rail Bottoms Based on the Ultrasonic Guided Waves of Piezoelectric Sensor Arrays. [PDF]

Sensors (Basel), 2022
Yang Y, Wang P, Song TL, Jiang Y, Zhou WT, Xu WL.   +5 more
europepmc   +1 more source

Time of flight diffraction and imaging (TOFDI) [PDF]

Time of flight diffraction and imaging (TOFDI) is based on time of flight diffraction (TOFD), adding cross-sectional imaging of the sample bulk by exploiting the scattering of ultrasonic waves from bulk defects in metals.
Petcher, P. A.
core  

Supercritical CO2‐Induced Porous MXene Films for Electromagnetic Interference Shielding and Infrared Stealth

Advanced Science, EarlyView.
The phase transition of supercritical CO2 induces the foaming of dense MXene film without compromise inherent structure of MXene nanosheet. The foamed porous MXene film manifests remarkable EMI shielding and infrared thermal camouflage performances. Moreover, the foaming strategy is broadly adaptable and can be extended to other two‐dimensional films ...
Hui Zhao, Shuai Li, Jiabei He, Tong Gao, Jingfeng Wang, Dongxiao Kan, Wangtu Huo, Lixin Chen   +7 more
wiley   +1 more source

Towards Interpretable Machine Learning for Automated Damage Detection Based on Ultrasonic Guided Waves. [PDF]

Sensors (Basel), 2022
Schnur C, Goodarzi P, Lugovtsova Y, Bulling J, Prager J, Tschöke K, Moll J, Schütze A, Schneider T.   +8 more
europepmc   +1 more source

Generation of time-independent torque by ultrasonic guided waves

Ultrasonics
The excitation of acoustic waves by a unidirectional transducer, integrated in a piezoelectric cylindrical tube or disk, can lead to a time-independent torque. This phenomenon, demonstrated earlier in experiments and analyzed with coupling-of mode theory, is explained in detail, starting on the level of lattice dynamics of a piezoelectric crystal ...
Nedospasov, Ilya, Pupyrev, Pavel Dmitrievich, Sotnikov, Andrei V., Schmidt, Hagen, Weihnacht, Manfred, Mayer, Andreas   +5 more
openaire   +3 more sources

Surface defect characterisation using non-contact ultrasound [PDF]

Electromagnetic acoustic transducers (EMATs) have been used as a non-contact ultrasound approach for detecting and characterising surface defects in aluminium bars and billet.
Rosli, M. H.
core  

Experimental study of heat damage evaluation using nonlinear ultrasonic guided waves [PDF]

Nonlinear ultrasonic guided waves have attracted increasing attention in non-destructive evaluation (NDE) due to their advantages over linear ultrasonic guided waves, e.g.
Ng, C.T., Aseem, A.
core   +1 more source

Multiferroic‐Centric Materials and Systems Engineering for Battery Applications: An Insight Into Mechanisms, Strategies, and Characterizations

Advanced Science, EarlyView.
Multiferroic order parameters – polarization, magnetization, and ferroelastic strain – are positioned as dynamic design variables for batteries. Their mechanistic roles, practical tuning through fabrication and external fields, and ferroic‐resolved characterization routes are unified into a closed‐loop framework, revealing how coupled ferroic responses
Jiaqi Su, Yanda Zhu, Hao Peng, Manman Li, Xuzihan Zhang, Meixiao Wu, Siyuan Zhang, Yuhan Zeng, Jiwen Liao, Ming Luo, Hetaishan Huang, Yutong Wang, Sean Li, Wenxian Li   +13 more
wiley   +1 more source

Evaluation of Bolt Corrosion Degree Based on Non-Destructive Testing and Neural Network

Applied Sciences
Anchor bolt corrosion is a complex and dynamic system, and the prediction and identification of its corrosion degree are of significant importance for engineering safety.
Guang Han, Shuangcheng Lv, Zhigang Tao, Xiaoyun Sun, Bowen Du   +4 more
doaj   +1 more source

Simultaneous Measurement of Thickness and Elastic Properties of Thin Plastic Films by Means of Ultrasonic Guided Waves. [PDF]

Sensors (Basel), 2021
Kažys RJ, Tumšys O.
europepmc   +1 more source