口诀
发表于 2025-3-26 22:34:09
On the Use of the Second-Order Acoustic Nonlinearity Parameter B/A for Ultrasonic Tissue Characterinear (1). Nevertheless, a linearization of the governing equations has in a number of cases led to mathematically less complicated expressions with solutions showing surprisingly good agreement with experimental results. However, experimental evidence is now accumulating indicating that a linear tre
考古学
发表于 2025-3-27 03:04:07
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一再困扰
发表于 2025-3-27 06:24:11
Activities on Acoustic Impedance Tomography at L. M. A.,P. Lefebvre, and the work on Reconstructive Echo-Tomography of J.P. Sessarego. Acoustic Impediography is the quantitative extension of Echography first initiated by J.P. Jones. Reconstructive Echo-Tomography is an alternative to Echography, initiated by G. Wade. Because of its efficiency, we choose
ALLAY
发表于 2025-3-27 13:04:00
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改良
发表于 2025-3-27 16:06:20
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Palatial
发表于 2025-3-27 21:11:52
Conference proceedings 1982roposal for a "Concerted Action" which will be forwarded to the European Commission. It should, therefore, not only be considered as a work in progress exhibition which succeeded the former activities within the E. C. (Inventory on Tissue Characterization in Europe and first Workshop). The Steering
In-Situ
发表于 2025-3-27 23:04:42
Activities on Acoustic Impedance Tomography at L. M. A.,the technique of Reconstructive Echo-Tomography to solve the Three dimensional extension of Impediography. We present here the general theory of the method, and partial experiments on one-dimensional Impediography and on the reconstruction of simple targets.
anticipate
发表于 2025-3-28 05:07:28
Synthetic Focussing in Medical Ultrasound,and processing techniques of RF echo measurements..With respect to the medical applications, the following projects are of interest:.With respect to the medical applications, the following projects are of interest:
PON
发表于 2025-3-28 08:15:12
Review and Perspective of Biological Tissue Characterization,examined field. Currently there are researches on the scanning of ultrasonic beams and on the programmable foca1ization. The second direction of investigation concerned the optimization of the ultrasonic pulse shape within the time-domain and the extraction and presentation of the echoes.
CRUDE
发表于 2025-3-28 10:57:28
ttel Abweichungen vom idealen Aufbau, die nie vollständig zum Verschwinden gebracht werden kännen. Alle Abweichungen von der strengen dreidimensionalen Periodizität des Kristallaufbaus bezeichnet man als Gitterfehler oder auch als Fehlordnung. Gitterfehler, die nicht zu einem Verlust der sog. Fernor