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As an example of the application of some knowledge of Linear Algebra,this paper discusses the application of an invertible matrix in secure communication,some basic problems of this application,and the solutions to these problems.

作为工科"线性代数"课中相关知识的一个具体应用的例子，从理论与实践相结合的角度论述了可逆矩阵在保密通信中的应用及其存在的问题与对策等。

In this paper, a novel feature MFCC_FWD_BWD, which is based on forward-backward difference dynamic parameters, is presented to satisfy the requirement that the feature construction matrix is invertible for PMC.

本文首先提出了一种基于前后向差分动态参数的特征MFCC_FWD_BWD，该特征满足PMC对特征构造矩阵可逆的要求。

Zhan has determined the maximum and minimum numbers of positive entries of imprimitive irreducible nonnegative matrices with a given imprimitivity index. In this paper, we prove that if a positive integer is between the maximum and minimum numbers, then there exists an irreducible nonnegative matrix A with the given imprimitivity index and with the given number of positive entries.

非负矩阵是矩阵论中研究比较活跃的领域，不可约非负矩阵是比较重要的非负矩阵，本文分两部分，一部分主要在詹兴致教授的研究基础上研究了给定非本原性指标的不可约非负矩阵中非零元个数的连续性，肯定地回答了詹兴致提出的一个自然的问题。

This paper presents the kinematics model and the velocity Jacobian matrix of the two degree of freedom motor.

给出了正交圆柱结构两自由度电动机的运动学模型及变换矩阵，推导了速度雅可比矩阵。

Based on the screw theory and the vector product, a modified method for solving Jacobian matrix is proposed in this paper.

基于旋量理论和矢量积法，本文提出了求解雅可比矩阵的改进方法。

In this paper, based on the characteristics of robot visual servo system, a real-time image processing system based on TMS320C6201 is introduced, and the principle for robot visual servo system based on image Jacobian matrix is analyzed.

本文针对机器人视觉伺服系统要求快速准确的特点，设计了基于TMS320C6201的机器人视觉图像处理系统，并分析了基于图像雅可比矩阵的机器人视觉伺服方法的基本原理。

This paper is based on the operation matrix and develop a numerical inversion of Laplace transform method.

本文以运算矩阵为基础，发展出一个值的反氏转换问题。

The Slant operational matrix of integration is used in this paper to solve the numerical inversion of Laplace transform.

本文以 Slant 转换的积分运算矩阵去求解值的反氏转换的问题。

The equivalent definition of the minimal strong component is given, and it discusses the relation between the standard form and the minimal strong component in the paper. Consequently, the theory is proved that the periodicity of a fuzzy matrix is the least common multiple of periodicity of its minimal strong component.

给出了极小强支的等价定义，讨论了模糊矩阵的标准型与极小强支关系，从而得到了模糊矩阵周期是极小强支周期的最小公倍数的定理。

This paper studies the coupling measure problem of linear matrix-second-order system M?

本文研究了具有非对称性质的线性二阶矩阵系统 Mq+Cq+Kq=f的耦合测度问题。

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％。