https://www.selleckchem.com/pr....oducts/molidustat-(b
A two-dimensional (2D) array with a small pitch (approximately 0.5λ in medium) can achieve a complete three-dimensional control of ultrasound beams without grating lobes and enable the generation of multiple focal spots simultaneously, which is a desired tool for noninvasive therapy. However, the large electrical impedance of 2D array elements owing to their small size results in a low energy transfer efficiency between a 2D array and an electrical system, thereby limiting their practical applications. This paper present
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