Results 41 to 50 of about 16,283 (340)

Focusing Modeling of OPFC Linear Array Transducer by Using Distributed Point Source Method

Abstract and Applied Analysis, 2014
The improvement of ultrasonic phased array detection technology is a major concern of engineering community. Orthotropic piezoelectric fiber composite (OPFC) can be constructed to multielement linear array which may be applied conveniently to actuators ...
Ziping Wang, Ying Luo
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

Metascreen-Based Acoustic Passive Phased Array [PDF]

, 2015
Conventional phased arrays require a large number of sources in forming a complex wave front, resulting in complexity and a high cost to operate the individual sources.
Cheng, Jian-chun, Jiang, Xue, Li, Yong, Liang, Bin, Zhang, Likun   +4 more
core   +1 more source

An annular array with fiber composite microstructure for far field NDT imaging applications [PDF]

, 2010
This paper describes the design and fabrication of a reduced element count annular array for far field NDT imaging applications, built with a random fiber piezoelectric composite microstructure.
Dziewierz, J., Gachagan, A., O'Leary, R.L., Ramadas, S.N., Velichko, A., Wilcox, P.D.   +5 more
core   +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

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

Ultrasound array transmitter architecture with high timing resolution using embedded phase-locked loops [PDF]

, 2012
Coarse time quantization of delay profiles within ultrasound array systems can produce undesirable sidelobes in the radiated beam profile. The severity of these sidelobes is dependent upon the magnitude of phase quantization error - the deviation from ...
Cowell, DMJ, Freear, S, Raiton, B, Smith, PR, Vo Ky, C   +4 more
core   +1 more source

Plecstatin inhibits hepatocellular carcinoma tumorigenesis and invasion through cytolinker plectin

Molecular Oncology, EarlyView.
The ruthenium‐based metallodrug plecstatin exerts its anticancer effect in hepatocellular carcinoma (HCC) primarily through selective targeting of plectin. By disrupting plectin‐mediated cytoskeletal organization, plecstatin inhibits anchorage‐dependent growth, cell polarization, and tumor cell dissemination.
Zuzana Outla, Jan Kosla, Magdalena Prechova, Lukas Frick, Patricia Bortel, Yasmin Borutzki, Andrea Bileck, Christopher Gerner, Samuel M. Meier‐Menches, Selma Osmanagic‐Myers, Martin Gregor   +10 more
wiley   +1 more source

An Improved Scheduling Algorithm for Data Transmission in Ultrasonic Phased Arrays with Multi-Group Ultrasonic Sensors

Sensors, 2017
High data transmission efficiency is a key requirement for an ultrasonic phased array with multi-group ultrasonic sensors. Here, a novel FIFOs scheduling algorithm was proposed and the data transmission efficiency with hardware technology was improved ...
Wenming Tang, Guixiong Liu, Yuzhong Li, Daji Tan   +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