Attenuation coefficient and propagation speed estimates of intercostal tissue as a function of pig age
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چکیده
منابع مشابه
Ultrasound attenuation coefficient in the fetal liver as a function of gestational age.
An apparent increase in the ultrasound attenuation coefficient per unit frequency, alpha f, of fetal liver as a function of gestational age has been observed. Measurements were made in utero with a 25 megasample/sec RF digitizer and a real time ultrasound system with a 5 MHz scan head. A precise measurement of alpha f was employed in which the intercept was tied to 0 at a frequency of 0. In 178...
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در این تحقیق دانش زبانشناسی و کاربردشناسی زبان آموزان ایرانی در سطح بالای متوسط مقایسه شد. 50 دانش آموز با سابقه آموزشی مشابه از شش آموزشگاه زبان مختلف در دو آزمون دانش زبانشناسی و آزمون دانش گفتار شناسی زبان انگلیسی شرکت کردند که سوالات هر دو تست توسط محقق تهیه شده بود. همچنین در این تحقیق کارایی کتابهای آموزشی زبان در فراهم آوردن درون داد کافی برای زبان آموزان ایرانی به عنوان هدف جانبی تحقیق ...
15 صفحه اولAnalysis of the Attenuation Coefficient of Composite Silicone Rubber and Gliceryn for Soft Tissue Phantom Applications
Introduction: Phantom is an object that can be used to investigate the accuracy of radiation dose delivered to patients. Phantom is usually produced from the combination of the silicone rubber as a matrix and glycerin as a filler to form a composite for the replacement of the human soft tissue. The composite is imaged using computed tomography (CT) simulator for the de...
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abstract a fundamental study of “historio-graphic metafiction” and “literary genres”, as introduced in “new historical philosophy”, and tracing them in the works of julian barnes having studied the two novels, the porcupine and arthur & george, by julian barnes, the researcher has applied linda hutcheon’s historio-graphic metafictional theories to them. the thesis is divided into five cha...
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ژورنال
عنوان ژورنال: IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control
سال: 2002
ISSN: 0885-3010
DOI: 10.1109/tuffc.2002.1041083