别名
发表于 2025-4-1 03:11:38
Najine Amelie obtained using the proposed method, and the bubble-tissue ratio was improved by 8.3 dB as compared with the conventional second-harmonic method. In animal experiments, the tissue echoes were adequately suppressed as compared with conventional second-harmonic images.
analogous
发表于 2025-4-1 09:35:18
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确定的事
发表于 2025-4-1 11:37:55
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衰弱的心
发表于 2025-4-1 15:12:03
Rolf G. Heinze,Emily Drewing those of transducers constructed with commercial ceramics poled in a conventional way. The -3dB and -6dB contours of the acoustic field show that an apodised transducer shows a large depth of field, a very desirable result if medical images are to be obtained from deep structures without lowering the ultrasound frequency.
有偏见
发表于 2025-4-1 20:14:26
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Collision
发表于 2025-4-2 00:20:38
Jonas Hinkergh only a few pounds. Moore’s law is apparently approaching physical limits, and a second Moore’s law predicts rapidly increasing production costs with reduced chip size. Because of the time lag of technology implementation, the full effect of the latest devel opments have not had their full effect on ultrasound imaging.
捐助
发表于 2025-4-2 03:24:41
Steven März,Jan Paul Baginski,Moritz vom Hofegh only a few pounds. Moore’s law is apparently approaching physical limits, and a second Moore’s law predicts rapidly increasing production costs with reduced chip size. Because of the time lag of technology implementation, the full effect of the latest devel opments have not had their full effect on ultrasound imaging.
使混合
发表于 2025-4-2 08:34:07
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