Results 41 to 50 of about 16,629 (343)

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

Optimal Design of Sparse Array for Ultrasonic Total Focusing Method by Binary Particle Swarm Optimization

IEEE Access, 2020
Ultrasonic phased array technology is used in various fields. Traditional full phased arrays place elements in every position of a uniform lattice with half-wavelength spacing between the lattice points, so the hardware cost is very high.
Han Zhang, Bichao Bai, Jianfeng Zheng, Yun Zhou   +3 more
doaj   +1 more source

A phased array-based method for damage detection and localization in thin plates [PDF]

, 2009
A method for damage localization based on the phased array idea has been developed. Four arrays oftransducers are used to perform a beam-forming procedure.
Fomme, P., Irina Trendafilova, Pawel Malinowski, Peil, U., Pena, J., Purekar, A.S., Tomasz Wandowski, Wandowski, T., Wieslaw Ostachowicz, Zak, A.   +9 more
core   +1 more source

Optimization Design of Phased Array Ultrasonic Transducer Arrays

DEStech Transactions on Computer Science and Engineering, 2018
The design and selection of the transducer array parameters directly affect the performance of the audio directional transmission system. In this paper, the influence of the number of array element, the pitch, the frequency and the deflection angle on the array directivity is analyzed in detail.
Zhi-qian KANG, Xi-hai LI, Xiang-yu LI
openaire   +2 more sources

Acoustic Field of a Linear Phased Array: A Simulation Study of Ultrasonic Circular Tube Material

Sensors, 2019
As ultrasonic wave field radiated by an ultrasonic transducer influences the results of ultrasonic nondestructive testing, simulation and emulation are widely used in nondestructive testing. In this paper, a simulation study is proposed to detect defects
Zhitao Xiao, Yongmin Guo, Lei Geng, Jun Wu, Fang Zhang, Wen Wang, Yanbei Liu   +6 more
doaj   +1 more source

TRAIL‐PEG‐Apt‐PLGA nanosystem as an aptamer‐targeted drug delivery system potential for triple‐negative breast cancer therapy using in vivo mouse model

Molecular Oncology, EarlyView.
Aptamers are used both therapeutically and as targeting agents in cancer treatment. We developed an aptamer‐targeted PLGA–TRAIL nanosystem that exhibited superior therapeutic efficacy in NOD/SCID breast cancer models. This nanosystem represents a novel biotechnological drug candidate for suppressing resistance development in breast cancer.
Gulen Melike Demirbolat, Aslihan Kucuk, Omer Erdogan, Samed Ozer, Bensu Kozan, Tugba Cuceli, Erkan Gumus, Evrim Cevik, Ozge Cevik   +8 more
wiley   +1 more source

Pulse-Echo Phased Array Ultrasonic Inspection of Pultruded Rod Stitched Efficient Unitized Structure (PRSEUS) [PDF]

, 2010
A PRSEUS test article was subjected to controlled impact on the skin face followed by static and cyclic axial compressions. Phased array ultrasonic inspection was conducted before impact, and after each of the test conditions. A linear phased array probe
Johnston, Pat H.
core   +1 more source

The high frequency flexural ultrasonic transducer for transmitting and receiving ultrasound in air [PDF]

, 2020
Flexural ultrasonic transducers are robust and low cost sensors that are typically used in industry for distance ranging, proximity sensing and flow measurement.
Dixon, Steve M., Feeney, Andrew, Kang, Lei   +2 more
core   +3 more sources

Surface Tension Measurement of Ti‐6Al‐4V by Falling Droplet Method in Oxygen‐Free Atmosphere

Advanced Engineering Materials, EarlyView.
In this article, the temperature‐dependent surface tension of free falling, oscillating Ti‐6Al‐4V droplets is investigated in both argon and monosilane doped, oxygen‐free atmosphere. Droplet temperature and oscillation are captured with one single high‐speed camera, and the surface tension is calculated with Rayleigh's formula.
Johannes May, Finn‐Lennard Janthur, Lena Kreie, Michael Müller, Sarah Seffer, Nick Schwarz, Jörg Hermsdorf, Thomas Hassel, Stefan Kaierle, Ludger Overmeyer   +9 more
wiley   +1 more source

Fast and Smart State Characterization of Large-Format Lithium-Ion Batteries via Phased-Array Ultrasonic Sensing Technology

Sensors
Lithium-ion batteries (LIBs) are widely used in electric vehicles and energy storage systems, making accurate state transition monitoring a key research topic.
Zihan Zhou, Wen Hua, Simin Peng, Yong Tian, Jindong Tian, Xiaoyu Li   +5 more
doaj   +1 more source