查询词典 matrix

In this paper, an iterative algorithm is proposed to find the generalized centrosymmetric solution pair of matrix equation AXA~T+BYB~T=C. The solvability of the matrix equation can be determined automatically in the iterative process. When the matrix equation is consistent, the solution pair can be obtained within finite steps in the absence of round-off errors.

该论文运用迭代方法研究了矩阵方程的一般中心对称解解，特别地，当矩阵方程是相容的时，经过有限步就能求出该方程的一般中心对称解解，然后以此为主要依据进一步研究了矩阵方程的最优近似解，最后举例验证了该论文的主要结论。

When the matrix equation is consistent, its centrosymmetric solution can be obtained within finite iterative steps in the absence of round off errors for any initial centrosymmetric matrix X1, and its least-norm centrosymmetric solution can be derived by choosing a suitable initial iterative matrix.

当矩阵方程AXB+CXD=F有中心对称解时，在有限的误差范围内，对任意初始中心对称矩阵X1，运用迭代算法，经过有限步可得到矩阵方程的中心对称解；选取合适的初始迭代矩阵，还可以迭代出极小范数中心对称解。

CD34 hematopoietic stem/progenitor cells reside in the bone marrow in close proximity to the endosteal bone surface, surrounded by osteoblasts, stromal cells, and various extracellular matrix molecules. We used a bioartificial matrix of fibrillar collagen I, the major matrix component of bone, as a scaffold for ex vivo expansion of HSCs.

CD34 的造血干细胞/祖细胞存在于接近骨内膜表面的骨髓中，由成骨细胞、间充质细胞以及各种细胞外基质分子所包绕，我们采用生物人工合成的纤维胶原I

CD34+ hematopoietic stem/progenitor cells reside in the bone marrow in close proximity to the endosteal bone surface, surrounded by osteoblasts, stromal cells, and arious extracellular matrix molecules. We used a bioartificial matrix of fibrillar collagen I, the major matrix component of bone, as a scaffold for ex io expansion of HSCs.

CD34+的造血干细胞/祖细胞存在于接近骨内膜表面的骨髓中，由成骨细胞、间充质细胞以及各种细胞外基质分子所包绕，我们采用生物人工合成的纤维胶原I

The effects of α-Al2O3 micro-powder and nano-powder additions on matrix rheologic behavior were studied. The optimum matrix granulometric composition was obtained based on the investigation of matrix rheologic behavior and the properties of α-Al2O3 nano-powder composite high purity corundum brick.

研究了α-Al2O3纳米复合高纯刚玉砖基质中的微粉、α-Al2O3纳米粉的加入量对基质流变性的影响，结合试样的烧后性能确定其基质的最佳颗粒组成。

In random information systems,based on the indiscernibility relation,the concept of in discernibility attribute matrix is proposed and the relationship between discernibility attribute matrix and in discernibility attribute matrix is shown.

在随机信息系统中，根据不可辨识关系，提出了不可辨识属性矩阵的概念，证明了不可辨识属性矩阵与可辨识属性矩阵的关系，最后提出了一种基于不可辨识属性矩阵约简算法。

We study the express of heparinase,matrix metalloproteinase MMP-2,MMP-14 and cadherin in the gastric cancer tissue and perigastric normal mucosal tissue,and make a statistics analysis between heparinase, matrix metalloproteinase MMP-2,MMP-14,E-cadherin and gastric cancer biological behavior.We hope to knom the possibility that heparinase,matrix metalloproteinase MMP-2,MMP-14,E-cadherin are regared as clinical screen index of the gastric cancer recrudescence or metastasis.

本文就肝素酶、基质金属蛋白酶MMP-2、MMP-14、钙粘蛋白在胃癌组织及胃周正常粘膜的表达进行了研究，并就肝素酶、基质金属蛋白酶MMP-2、MMP-14、钙粘蛋白与胃癌的生物学行为进行了统计学分析，以期了解肝素酶、基质金属蛋白酶MMP-2、MMP-14、钙粘蛋白作为胃癌复发或转移的临床筛选指标的可能性。

Before the primary data matrices are multiplied, each is treated for noise by multiplication by a perturber where E= is the original primary matrix, is the perturbed matrix, and is the perturber matrix.

以前的原始数据矩阵都是成倍增长，每次治疗是噪音的乘法的一个perturber其中E=是原来小矩阵是摄矩阵，且是perturber矩阵。

Objective: Experimental study on the possibility of HA/TCP matrix scaffold's as cell carrier in tissue engineering; Observe the manifestation of human bone marrow stromal cells and umbilical vein endothelial cells during culture on the surface of HA/TCP matrix scaff, and provide direct evidence for the resurfacing of matrix scaffold.

目的：①研究骨髓基质细胞、脐静脉内皮细胞在复合材料的表面生长情况，为表面改性提供直接依据；②复合成骨材料对细胞的影响。

Singular linear systems; Iterative methods;AOR method; JOR method; Rank deficient least squares problems;Semiconvergence; Optimum parameters; P-cyclic matrix; Consistently ordered matrix; Preconditioning; Matrix pencil; Eigenvalue bounds; Support number

奇异线性方程组；迭代法；AOR 方法；JOR方法；亏秩最小二乘问题；半收敛性；最优参数；P-循环矩阵；相容次序矩阵；预处理；矩阵对；特征界；支撑数

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％。