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Cluster of differentiation 44(CD44) is a principal cell surface receptor for hyaluronate, a major component of extracellular matrices.

人类白细胞分化抗原作为一种粘附分子，主要与细胞外透明质酸结合，参与关节软骨基质中透明质酸的代谢，因而它与各种骨关节疾病包括大骨节病关系密切。

The following works have been fulfilled within this thesis: First of all, based on the general principle of virtual displacement of nonlinear continuum mechanics, the geometric and material stiffness matrices is presented, several examples show that both of them can give out accurate result.

其次，通过对交错桁架结构的一些算例对比，得到了该结构一些带规律性的结论，这是国内首次对交错桁架体系进行空间三维的弹塑性全过程分析。

Each probability in the state transition matrix and in the confusion matrix is time independent - that is, the matrices do not change in time as the system evolves.

在状态转移矩阵以及混合矩阵中的每一个概率都是与时间无关的，也就是这些矩阵在系统演化的时候并不随着时间而改变。

PROCRUSTES——Aligns one matrix to best fit another or else computes an average matrix and aligns the matrices to best match their average.

PROCRUSTES 把一个矩阵匹配成另一种矩阵，或者计算矩阵的平均值和把矩阵的平均值转换。

To begin with, through taking merely feature points on image pair obtain the initial projective transformation matrices.

对利用手持普通数码相机原地旋转拍摄的序列场景图像，本文研究以图像特征匹配和目标函数优化完成了平面全景图像拼接，改进了Szeliski算法。

Then, an optimization algorithm is used to optimize the initial projective transformation matrices by using area around each feature point, and complete the precise image mosaics.

方法的具体实现为：首先利用相位一致方法提取各图像中边缘上的角点特征，对特征角点进行初始匹配，然后利用初始匹配的角点计算变换矩阵的初始参数，再以光强度差的平方和为优化目标函数，在优化的过程中逐步获得变换矩阵的最佳参数，最后对重叠区域运用渐入渐出的方法实现了光强或颜色的自然过渡。

In this paper, two tests are proposed to test the hypothesis with generalized p values and QR decomposition of design matrices.

本文利用设计阵的QR分解和广义p值，给出了一种精确的检验。

Consistent tangent modulus matrices with consideration of the fully coupled effects are derived to preserve the quadratic rate of convergence of the global Newton iterative procedure.

损伤耦合分析的一致性切线模量矩阵。

Questions in this content area are based on an understanding of the quadratic formula, rational and radical expressions, absolute value equations and inequalities, sequences and patterns, systems of equations, quadratic inequalities, functions, modeling, matrices, roots of polynomials, and complex numbers.

中等代数（ 15 ％）。这方面的考试内容包括理解二次公式，有理式及根式，绝对值方程和不等式，序列，方程组，二次不等式，函数，建模，矩阵，多项式的根以及复数。

In this paper, we show that when the data matrices are $2\times 2$ and $3\times 3$-dimensional, we can transfer the problem into an optimization problem with quadratic matrix inequality constraints, based on another equivalent robust optimization problem converted from the original one.

本文表明，当数据矩阵为2乘2阶，3乘3阶矩阵时，我们可以把上述问题转化成二次矩阵不等式约束的最优化问题。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。