Peridynamic modeling of nonlinear surface acoustic waves propagating in orthotropic materials [0.03%]
各向异性材料中非线性表面声波的peridynamics模拟研究
Zaiwei Liu,Bin Lin,Xiaohu Liang et al.
Zaiwei Liu et al.
Due to the elastic nonlinearity of the material, high-amplitude surface acoustic waves undergo nonlinear evolution during propagation and may lead to material failure. To enable the acoustical quantification of material nonlinearity and str...
Holographic generation of arbitrary ultrasonic fields by simultaneous modulation of amplitude and phase [0.03%]
同时调制振幅和相位的全息任意超声场生成方法
Xuemei Ren,Qinxin Zhou,Jie Huang et al.
Xuemei Ren et al.
Acoustic holograms have been used widely to generate desired acoustic fields. Following the rapid development of 3D printing technology, the use of holographic lenses has become an efficient method to produce acoustic fields with high resol...
Ultrasonic welding of printed/molded sustainable polymer specimens with energy directors [0.03%]
具有能量导向槽的印刷/模塑可持续聚合物试样的超声焊接
Ram Singh Rana,Inderdeep Singh,Apurbba Kumar Sharma
Ram Singh Rana
Fused deposition modeling is preferred to fabricate the biodegradable poly lactic acid (PLA) parts, owing to its impeccable characteristics, such as, customization, waste minimization and scalability. However, limited printing volume constr...
Optimization of three-dimensional traveling wave drive for a PZT thin-film micro-motor based on stiffness tuning of the supporting structure [0.03%]
基于支撑结构刚度调节的PZT薄膜微电机三维行波驱动优化研究
Tianyu Yang,Binlei Cao,Yu Chen et al.
Tianyu Yang et al.
This paper is based on the analysis of the three-dimensional motion of the PZT (lead zirconate titanate) thin-film traveling wave micro-motor and presents an optimization study of the effect of the radial component on the output torque and ...
Siyi Liang,Lidai Wang
Siyi Liang
Ultrafast ultrasound imaging modalities have attracted a lot of attention in the ultrasound community. It breaks the compromise between the frame rate and the region of interest by insonifying the whole medium with wide unfocused waves. Coh...
Theoretical modeling and experimental verification of an improved radial composite transducer consisting of a metal ring and a radially polarized piezoelectric stack [0.03%]
由金属环和径向极化压电叠堆组成的改进型径向复合换能器的理论建模与实验验证
Cheng Chen,Jianzhong Guo,Shuyu Lin
Cheng Chen
In the ring radial transducer, the wall thickness of the radially polarized piezoelectric ceramic is limited by the polarization technology and operating voltage, resulting in the limited power capacity and vibration ability of the transduc...
A new method for characterizing piezoelectric properties of hexagonal boron nitride nanoflakes activated by focused ultrasound [0.03%]
聚焦超声激活的六方氮化硼纳米片压电性能表征的新方法研究
Bikash Chandra Mallick,Hsin-Yun Chang,Gin-Shin Chen
Bikash Chandra Mallick
Piezoelectric nanomaterials wirelessly activated by ultrasound have been studied for biomedical applications. However, the quantitative measurement of piezoelectric effects in nanomaterials and the correlation between the ultrasound dose an...
Improving the quality of ultrasound images acquired using a therapeutic transducer [0.03%]
利用治疗换能器获取超声图像的质量改善
Eui-Ji Shin,Sunghun Park,Sungwoo Kang et al.
Eui-Ji Shin et al.
To enhance the effectiveness and safety of focused ultrasound (FUS) therapy, ultrasound image-based guidance and treatment monitoring are crucial. However, the use of FUS transducers for both therapy and imaging is impractical due to their ...
Deep-learning-assisted and GPU-accelerated vector Doppler imaging with aliasing-resistant velocity estimation [0.03%]
基于深度学习的GPU加速无混叠矢量多普勒成像方法研究
Hassan Nahas,Billy Y S Yiu,Adrian J Y Chee et al.
Hassan Nahas et al.
Vector flow imaging is a diagnostic ultrasound modality that is suited for the visualization of complex blood flow dynamics. One popular way of realizing vector flow imaging at high frame rates over 1000 fps is to apply multi-angle vector D...
Semi-supervised learning improves the performance of cardiac event detection in echocardiography [0.03%]
半监督学习可提高心电图心脏事件检测性能
Yongshuai Li,He Li,Fanggang Wu et al.
Yongshuai Li et al.
Detection of end-diastole (ED) and end-systole (ES) frames in echocardiography video is a critical step for assessment of cardiac function. A recently released large public dataset, i.e., EchoNet-Dynamic, could be used as a benchmark for ca...