Based on 3d elastic theory, the dynamic equations and corresponding boundary conditions about the cylindrical functionally graded shell bonded piezoelectric layers were presented.
基于三维弹性理论，导出了带有压电层的圆柱形梯度壳的动力学方程以及相应的边界条件。
Therefore, this paper presents novel robust algorithms for 3d imaging myocardial strain and elastic modulus based on cardiac cine-MRI images and optimization theory.
因此，本文提出了基于MRI心脏电影图像和优化理论的心肌应变和弹性模量三维成像的鲁棒算法。
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