IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
نویسندگان
چکیده
منابع مشابه
Nonlinear Elasticity Imaging: Theory and Phantom Study - Ultrasonics, Ferroelectrics and Frequency Control, IEEE Transactions on
In tissue the Young’s modulus cannot be assumed constant over a wide deformation range. For example, direct mechanical measurements on human prostate show up to a threefold increase in Young’s modulus over a 10% deformation. In conventional elasticity imaging, these effects produce strain-dependent elastic contrast. Ignoring these effects generally leads to suboptimal contrast (stiffer tissues ...
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The Mason crossed-field circuit model is generalized to simulate apodized interdigital transducers without channel division. The apodized transducer model is based on the transmission line model, and the artificial transformer with different voltage and current coupling ratios is used to independently obtain the transfer function and radiation admittance. In addition, a heuristic expression for...
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| In this paper we take the class of Jacobi-type algorithms and present a systematic way to derive an architecture for execution of the time adaptive QR and QR ?1 algorithms, two members of the class. We know that Jacobi-type algorithms nd natural expression in Cordic arithmetic and that high-throughput implementations ask for parallel operating pipelined Cordic processor elements. Based on thi...
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Keywords| Nonholonomic systems, nonlinear controllabil-ity theory, robotic manipulation. Abstract| Pairs of bodies with regular rigid surface rolling onto each other in space form a nonholonomic system of a rather general type, posing several interesting control problems that have been studied relatively little. It also turns out that the nonholonomy of such systems can be exploited in practica...
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ژورنال
عنوان ژورنال: IEEE Transactions on Ultrasonics Ferroelectrics and Frequency Control
سال: 2021
ISSN: ['0885-3010', '1525-8955', '2373-7840']
DOI: https://doi.org/10.1109/tuffc.2021.3086938