Results 71 to 80 of about 1,828,003 (344)

Study on Denoising Method of Weld Defect Signal Based on SSA-VMD-WPD

Applied Sciences
Defects in welds can affect the structural safety and reliability of workpieces. Currently, the method of using phased array ultrasonic inspection technology for non-destructive testing of weld structures with high detection efficiency, good sensitivity,
Xiangqing Chen, Sifan Gong, Wei Pan, Youqing Kang, Weili Gong   +4 more
doaj   +1 more source

Acoustic Devices for Particle and Cell Manipulation and Sensing [PDF]

, 2014
An emerging demand for the precise manipulation of cells and particles for applications in cell biology and analytical chemistry has driven rapid development of ultrasonic manipulation technology.
Hughes, David, Sylvia Gebhardt, Poltarjonoks, Romans, Sandy Cochran, David A. Hughes, Cochran, Sandy, Aleksandrs Bolhovitins, Gebhardt, Sylvia, Han Wang, Romans Poltarjonoks, Martyn Hill, Schönecker, Andreas, Peter Glynne-Jones, Christine Demore, Christine E. M. Demore, Weijer, Kees; id_orcid, Kees Weijer, Hill, Martyn, Hughes, David A., Glynne-Jones, Peter, Demore, Christine E. M., Bolhovitins, Aleksandrs, Yongqiang Qiu, Demore, Christine, David Hughes, Andreas Schönecker, Qiu, Yongqiang, Wang, Han, Weijer, Kees   +28 more
core   +1 more source

Self‐Sintering Ionogel Binder for Flexible, Recyclable, and Healable Printed Giant Magnetoresistive Sensors

Advanced Functional Materials, EarlyView.
ABSTRACT Electronic waste has emerged as a major environmental challenge, driven by the massive consumption and a limited lifetime of modern electronic devices, stimulating the development of sustainable electronics. Here, an all‐biomaterial gelatin‐choline‐citric acid ([Ch][CA]) ionogel is developed as an active binder to realize self‐sintered ...
Lin Guo, Xiaotao Wang, Guannan Mu, Proloy Taran Das, Igor Veremchuk, Conrad Schubert, Aaron D. Cross, Yevhen Zabila, Xuan Peng, Larysa Baraban, Denys Makarov   +10 more
wiley   +1 more source

Development of Broadband High-Frequency Piezoelectric Micromachined Ultrasonic Transducer Array

Italian National Conference on Sensors, 2021
Piezoelectric micromachined ultrasonic transducers (PMUT) are promising elements to fabricate a two-dimensional (2D) array with a pitch small enough (approximately half wavelength) to form and receive arbitrary acoustic beams for medical imaging. However,
Xubo Wang, Leming He, Youcao Ma, Wenjuan Liu, Weijiang Xu, Junyan Ren, A. Riaud, Jia Zhou   +7 more
semanticscholar   +1 more source

Ultrasonic imaging of electrofusion welded polythene pipes employed in utilities industry [PDF]

, 2012
Electrofusion welding (EFW) is a widely used technique for joining polyethylene pipes in the oil, gas and water industry. Like many welding and joining methods, the joints created by EFW can exhibit a range of flaw types that can be attributed to process
Gachagan, Anthony, Thattaliyath Kadumberi, Arjun Prakash, O'Leary, Richard   +2 more
core  

Transfer Printing and Reconfiguration of Soft Electronics Using Digital Microfluidics and Laser Machining

Advanced Functional Materials, EarlyView.
This paper presents a digital microfluidics‐based technique for transferring and reconfiguring soft nanomembranes. Laser‐machined nanothin membranes are picked up, transported, and aligned via tailored surface tension and the actuation of water droplets, enabling the development of flexible electronics, the integration of functional materials on 3D ...
Quang Anh Nguyen, Chi Cong Nguyen, Tran Bach Dang, Phuoc Thien Phan, Jordan Thorpe, Michael Listyawan, Nhat Minh Doan, Sinuo Zhao, Hongru Chen, Trung Thien Hoang, Mingsheng Xu, Jisheng Han, Thanh Nho Do, Adam Hill, Timothée Mouterde, Hoang‐Phuong Phan   +15 more
wiley   +1 more source

Air-Coupled Low Frequency Ultrasonic Transducers and Arrays with PMN-32%PT Piezoelectric Crystals

Sensors, 2017
Air-coupled ultrasonic techniques are being increasingly used for material characterization, non-destructive evaluation of composite materials using guided waves as well as for distance measurements.
Rymantas J. Kazys, Reimondas Sliteris, Justina Sestoke   +2 more
doaj   +1 more source

Application of the Ultrasonic Ring Array Used in UTT for the Reflection Method Examinations of Structures

Archives of Acoustics, 2021
The ultrasonic ring array, designed for examining the female breast with the use of ultrasonic transmission tomography (UTT), has been adapted for reflection method trials.
Wiktor STASZEWSKI, Tadeusz GUDRA, Krzysztof J. OPIELINSKI   +2 more
doaj   +1 more source

Integrated Field‐Free SOT Domain‐Wall Synapses and MTJ Stochastic Neurons for Hardware Boltzmann Machines

Advanced Functional Materials, EarlyView.
Field‐free spin‐orbit torque domain‐wall synapses integrated with stochastic MTJ neurons enable compact hardware Boltzmann machines. Leveraging intrinsic stochasticity and multi‐level conductance, the system achieves efficient probabilistic learning with high accuracy, demonstrating a scalable spintronic platform for energy‐efficient edge AI.
Aijaz H. Lone, Meng Tang, Camelia Florica, Bin He, Jingkai Xu, Selma Amara, Georgian Melinte, Xixiang Zhang, Gianluca Setti   +8 more
wiley   +1 more source

Ultrasonic phased array flexible coupling detection of defects in high-voltage cable terminal lead seals

Frontiers in Mechanical Engineering
High-voltage cable terminal lead seals may develop defects such as holes, cracks, or delamination due to substandard installation quality or external forces during operation.
Peng Ziping, Zheng Jishi, Zhen Zhiming, Huang Yaosheng, Li Xiaobin, Cai Qiushen   +5 more
doaj   +1 more source