查询词典 modular matrix

This dissertation mainly discussed principal issues of the matrix converter such as realization and application. By the theoretical analysis, computer simulation and experimental investigation, some valuable experiences and significant conclusions were given, which found the technological basis for the matrix converters further practical studies.

本文的研究重点放在了矩阵变换器的应用方式的研究上，通过理论分析、计算机仿真和实验验证得出了一些有意义的经验和结论，为矩阵变换器进一步的实用化研究提供了一定的技术基础。

Determinant Research Method is one of the effective methods for calculating the generalized eigenvalues and corresponding eigenvectors of a large sparse matrix. Its theoretical foundation is that for a symmetric matrix the leading principal minors of the eigenmatrix form a Sturm Sequence.

"行列式查找法"是计算大型稀疏矩阵广义特征值和特征向量的有效方法之一，其理论基础是对称矩阵的各阶顺序主子阵的特征行列式形成Sturm序列。

The effect of background was corrected by matrix match and the interferences of matrix and principal elements on spectra were elminated by establishing mathematical model with the software of the instrument.

采用基体匹配法克服基体效应影响，利用仪器软件建立数学模型消除主量元素的光谱干扰。

In Laplace space, the exact element stiffness matrix of the axial, torsional and bending vibrations of cone-shaped and symmetrical closed thin-walled bars are derived. By use of variation principle, the element stiffness matrix of the coupling vibrations of an asymmetrical closed thin-walled bar is also given.

在拉氏空间中导出了锥形杆件和对称闭口薄壁杆件的轴向、扭转和弯曲振动的精确单元刚度矩阵，应用变分原理也给出了非对称闭口薄壁杆件耦联振动的单元刚度矩阵。

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。

A draw context contains a view matrix and a projection matrix.

一个绘制上下文包含一个视图矩阵和一个投影矩阵。

Nanoparticle of an appropriate proportion were homogeneously dispersed in the PI matrix, and the interfacial adhesion between the matrix and the nanoparticle was hence strong owing to the high specific surface area and reactivity of the nanoparticle. Subsequently, the molecular chains of PI attained unchanged or even increased interaction at a proper mass fraction of the nanometer particle, which contributed to improve the wear-resistance of the nanocomposites.

采用PI的原位聚合填充方法，利用聚酰亚胺与无机纳米表面较强的相互作用（如静电作用、较强的范德华力、氢键甚至化学键的形成），用非水悬浮工艺制备了无机纳米/聚酰亚胺纳米复合材料，率先用大型分析仪器全面地表征了复合材料的结构，采用原位聚合填充法制备的聚酰亚胺复合材料中，无机纳米分散状态良好；无机纳米氧化物/聚酰亚胺复合材料的结构表征显示出PI有机相和SiO〓无机相之间形成了键联型复合体系，两相相互影响；在复合体系中，单相本体的结晶结构并未发生改变；在摩擦过程中纳米氧化物没有发生价态的转变；无机纳米氧化物的加入，提高了聚酰亚胺的耐热等级；适量纳米氧化物并不影响复合材料的机械性能， 2。

To solve the problem encountered in finding a proper rotation matrix and translation vector, approximate and precise solutions are provided successively. The approximate one has the advantage of utilizing existing solution, with limited range of weight to choose from. The precise one has no limit to weight, and can also prevent the problem of obtaining a mirror matrix of the correct one. Besides, it permits the'hat'to be amplified to fit the size of'head'.

其中近似解可以直接套用现成的公式计算，但是权重的选择余地不大，而精确解则无此限制，而且从理论上解决了不同权重下求解旋转矩阵和平移向量时，可能出现错误的旋转矩阵的问题，并允许在配准时对"帽"进行缩放以适应"头"和"帽"的大小不匹配的问题。

They may play important role in the proteolysis of the extracellular matrix, cell-cell and/or cell-matrix adhesion and membrane fusion.

二、ADAM19是本实验室克隆的新基因的编码蛋白，是一类锚定于细胞膜表面蛋白家族成员之一。

You can snipe the second and third union leaders from this position.

您可以鹬第二和第三工会领袖从这一立场出发。

Aiming at the currently shortage of XML streams quality detecting, this paper proposes a new forecasting method of XML streams quality by least squares support vector machines, which is used the method of XML keys' vector matrix as windows, and vector product wavelet transform to multilevel decompose and refactor the XML streams series, that can fulfill real-time checking demand of XML quality, and ensure constraint, consist- ency and integrality. For even more adapting net load, it proposes a control strategy by weight and adaptive adjustment to ensure XML streams quality.

针对当前XML数据流质量检测存在的不足，提出构建XML键的矢量矩阵作为窗口，利用矢量积小波变换多级分解与重构XML数据流，再结合最小二乘支持向量机对XML数据流质量进行预测的一种方法，满足XML数据流质量重构时实时检测的要求，保证XML数据的约束性、一致性与完整性；为了更好的适应网络负载，采取加权与自适应窗口调整等调度策略充分保证XML数据流的质量检测。