Titlebook: Ultrasonic Tissue Characterization; Proceedings of the S J. M. Thijssen,D. Nicholas Conference proceedings 1982 Martinus Nijhoff Publishers

口诀

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

一再困扰

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

改良

Palatial

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

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

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

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

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