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The effect of frequency-dependent attenuation and the frequency characteristic of the converters on the error of measurements in ultrasonic flaw detection

โœ Scribed by V. G. Kartashev; E. V. Shalimova; A. B. Rodin


Publisher
Springer US
Year
2008
Tongue
English
Weight
287 KB
Volume
51
Category
Article
ISSN
0543-1972

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Ultrasonic frequency-dependent attenuation (FDA) coefficients of the liver obtained from selected regions of interest within the liver were determined in 106 individuals, 40 cases presumed normal based on medical histories and 66 with malignant tumors (hepatocellular carcinoma [HCC] or metastatic li