查询词典 rectangular matrix

This thesis consists of two parts. The first one was that boundary value problem was discrete with five point difference method. Three kinds of memory formats were studied, which were full matrix, half band width and row compress sparse. Full matrix memory format and half band width memory format first was contrasted. The results show that half band width has efficiency in space. Then the algebraic system of finite element method was solved by Gauss-Seidel iteration method to popular row compress sparse memory format.

本论文由两部分组成，第1部分针对边值问题，用5点差分格式进行离散，并对离散矩阵这类大型稀疏矩阵，研究了系数矩阵的3种存储格式的优劣，即：满矩阵存储格式、半带宽存储格式和按行压缩稀疏存储格式，首先我们将满矩阵存储方式和半带宽存储格式进行了对比，迭代法的数值实验表明：利用半带宽存储的矩阵在空间运算方面具有高效性；然后针对目前数值实验中流行的按行压缩稀疏存储格式，实现了有限元离散代数系统的迭代法的求解。

Its major feature is to reduce EMS memory allocation greatly by the help of two one dimensional arrays: one is used to deposite the elements within the band width of the matrix at input stage and latter store the elements within the band width of cholesky lower triangle matrix at output sta.

作者针对地球物理数值模拟中常碰到的大型稀疏变带宽方程组的求解问题，介绍了一种大型稀疏变带宽矩阵的存储方法及 Cholesky分解法。

Using varied band matrix and one-dimension array to collect the large sparse matrix, the integral coefficient of all the nodes, we could save memory space.

采用变带宽、一维数组方式只存储稀疏刚度矩阵中非零元索，能够节约内存。

Matrix metalloproteinase 9 (MMP9) is one of the representative substances that can degrade basement membrane and extracellular matrix.

基质金属蛋白酶9(matrix metalloproteinase 9，MMP9)是降解细胞基底膜，包括细胞外基质的代表性物质。

Matrix metalloproteinases, which degrade extracellular matrix and basement membrane, plays an important role in many inflammatory diseases.

基质金属蛋白酶(matrix metalloproteinases，简称MMPs)是可以分解细胞外基质和基底膜的蛋白质水解酶，在许多疾病中扮演重要的角色。

Pointing out that more than we might expect hinges on the moral backdrop of The Matrix plot line, he asks readers to instead envisage a "benevolently generated Matrix."

在他的文章《矩阵——我们的未来》中，以自己多年的研究为基础，他认为影片所描述的情形不仅是可能的，而且是不可避免的。

In the fifth chapter, we propose the conditional generalized ridge-type estimator of regression coefficient in restricted linear regression model, and prove that it is superior to the restricted best linear unbiased estimator in terms of mean squares error and mean squares error matrix, we also give the choice of parameters matrix K.

第五章给出了约束线性回归模型中回归系数的条件广义岭估计，讨论了它的优良性，证明了它在均方误差及均方误差矩阵下都优于约束最小二乘估计，并给出了参数矩阵K的选择。

This paper first presents the characteristic function of matrix Beta distribution and then obtains the first two moments through matrix differentials.

首先给出了矩阵Beta分布的特征函数，然后利用矩阵的微分得到了矩阵Beta分布的前二阶

Finally,we obtain the singular matrix Dirichlet andthe singular matrix Beta distribution,and the density functions of them are ob-tained.

最后，由退化矩阵Liouville分布构造了退化矩阵Dirichlet分布、退化矩阵Beta分布，得到了它们的密度函数的表达式。

To breed grafting watermelon Zhuang Miao, terminal of promotion of farming ability of terminal of farming ability promotion and peaceful wave city is in county of peaceful 2005 sea jointly town of street of Ning Hai's head of a county undertook inside the grow seedlings canopy of Shao Xingyong of village of palace of empress or imperial concubine of the first rank " in mother " the card is compressed model matrix nutrition earthen bowl Ci Xi, summarize test result as follows now. Earthen bowl of nutrition of the compression that 1 experiment process suits grafting watermelon grow seedlings to use matrix has 6cm × 2.5cm or 5cm × 2.2cm, what this we choose is 6cm × 2.5cm, smooth squeezing ramming should make seedbed copy first when grow seedlings, seedbed upper berth lies between water to use deep plastic film, in order to prevent moisture leakage and root system next plunging into, make sure nutrient earthen bowl is even and bibulous, filmy all around left and right sides of tall 6cm of bed a low bank of earth between fields, avoid prediction of a person's luck in a given year of moisture side direction.

为了培育嫁接西瓜壮苗，2005年宁海县农技推广总站和宁波市农技推广总站共同在宁海县长街镇娘娘宫村邵兴永的育苗棚内进行了"中慈"牌压缩型基质营养钵(慈溪市中慈生态肥料有限公司生产)和常规塑料钵育苗对嫁接西瓜秧苗素质影响的对比试验，现将试验结果总结如下。1试验过程适合嫁接西瓜育苗用的压缩型基质营养钵有6cm×2.5cm或5cm×2.2cm，这次我们选用的是6cm×2.5cm，育苗时要先将苗床底整平压实，苗床上铺隔水用厚塑料薄膜，以防止水分渗漏和根系下扎，保证营养钵均匀吸水，薄膜四面床埂高6cm左右，防止水分侧向流失。

Don not attempt to do something which you can not to do.

不要企图做那些办不到的事情。

The expression of CTGF and TNF-αweredetected by immunochemistry and the number of Clara Cells was calculated.

光镜下观察肺组织的病理变化，采用免疫组化染色观察肺组织中结缔组织生长因子和肿瘤坏死因子-α的表达和Clara细胞的数量。