Quadratic versus linear models to estimate the mean scattering spacing as a function of temperature in ex-vivo tissue [0.03%]
二次模型与线性模型在估计离体组织中均散射间距平均值随温度变化函数中的比较
Guillermo Cortela,Wagner C A Pereira,Carlos Negreira et al.
Guillermo Cortela et al.
Previous works have shown the feasibility of temperature estimation during ultrasonic therapy using pulse-echo diagnostic ultrasound. These methods are based on the measurement of thermally induced changes in backscattered RF echoes due to ...
Shaheeda Adusei,Redouane Ternifi,Mostafa Fatemi et al.
Shaheeda Adusei et al.
Morphologically realistic flow phantoms are essential experimental tools for quantitative ultrasound-based microvessel imaging. As new quantitative flow imaging tools are developed, the need for more complex vessel-mimicking phantoms is ind...
Design and dynamic analysis of a novel compound bending hollow piezoelectric beam miniature rotary actuator [0.03%]
一种新型复合弯曲空心压电梁微型旋转执行器的设计与动力学分析
Binbin Zhu,Chaofeng Li,Zhiwei Wu et al.
Binbin Zhu et al.
In this paper, a miniature hollow piezoelectric beam rotary actuator is proposed and designed based on the compound bending vibration modes. The structure body is designed as an elastic hollow square beam with symmetrical piezoelectric patc...
A review of synthetic and augmented training data for machine learning in ultrasonic non-destructive evaluation [0.03%]
用于超声波无损评估的人工智能合成和增强训练数据综述研究
Sebastian Uhlig,Ilkin Alkhasli,Frank Schubert et al.
Sebastian Uhlig et al.
Ultrasonic Testing (UT) has seen increasing application of machine learning (ML) in recent years, promoting higher-level automation and decision-making in flaw detection and classification. Building a generalized training dataset to apply M...
Low complexity adaptive ultrasound image beamformer combined with improved multiphase apodization with cross-correlation [0.03%]
一种低复杂度自适应超声波图像波束形成器结合改进的多相相阵控与互相关技术
Ping Wang,Jinghan Chen,Yue Shen et al.
Ping Wang et al.
In this paper, an ultrasound imaging method combined with low-complexity adaptive beamformer (LCA) and improved multiphase apodization with cross-correlation (IMPAX) is proposed to improve image resolution and contrast with low hardware cos...
Radial-torsional vibration conversion ultrasonic transducer based on radial chute disc [0.03%]
基于径向迷宫槽盘的径向扭振转换超声换能器
Wenyu Luo,Jun Pi,Tao Jiang et al.
Wenyu Luo et al.
Using the stress wave generated by radial excitation, an ultrasonic transducer with pure torsional output based on a radial chute is developed. Based on the reflection principle of the stress wave from the radial chute, the mechanical model...
Crack detection and classification of repaired concrete beams by acoustic emission monitoring [0.03%]
声发射检测和评定修补混凝土梁中裂缝的发展
Yara A Zaki,Ahmed A Abouhussien,Assem A A Hassan et al.
Yara A Zaki et al.
In this study, acoustic emission (AE) monitoring was used to investigate the cracking behavior of normal concrete beams repaired with fiber-reinforced cementitious composites (FRCC). The investigated beams were strengthened at two locations...
Global sonication of the human intracranial space via a jumbo planar transducer [0.03%]
通过大型平面换能器对整个人脑空间进行全球声波治疗
Spencer T Brinker,Kyungho Yoon,Helene Benveniste
Spencer T Brinker
Contrary to conditioning a Focused Ultrasound (FUS) beam to sonicate a localized region of the human brain, the goal of this investigation was to explore the prospect of distributing homogeneous ultrasound energy over the entire brain space...
Effect of pulse parameters on ablation efficiency in dual-frequency HIFU therapy [0.03%]
双频HIFU治疗中脉冲参数对消融效率的影响研究
Qiaomiao Zhu,Chuang Liu,Li Liu et al.
Qiaomiao Zhu et al.
High-intensity focused ultrasound (HIFU) has now been widely used to ablate various benign and malignant tumors. But it is still critical to increase the ablation efficiency in many clinical applications. Dual-frequency HIFU has been proven...
Analytical estimation of beamforming speed-of-sound using transmission geometry [0.03%]
基于传输几何的波束形成声速解析估算方法研究
Can Deniz Bezek,Orcun Goksel
Can Deniz Bezek
Most ultrasound imaging techniques necessitate the fundamental step of converting temporal signals received from transducer elements into a spatial echogenecity map. This beamforming (BF) step requires the knowledge of speed-of-sound (SoS) ...