1) minimal rank
最小秩
1.
In this paper,we give several properties of the minimal rank of matrices over any number field and characterize linear mapping of keeping the minimal rank.
本文给出任意数域上n×n阵的最小秩的几个性质,并且刻画保最小秩的线性映射。
2.
In this paper,the properties of the srew-idempotent matrix are presented by using the minimal rank of the complement Schur.
利用广义Schur补D-CA-B的最小秩给出斜幂等矩阵的一些性质。
3.
In the paper the maximal and the minimal rank of the matrix expression G+H-G(A+B)H are given by applying the rank of the generalized Schur complement of the matrix,where G,H are respectively the generalized inverse or weight generalized inverse of the matrix A,B.
利用矩阵的广义Schur补的秩给出矩阵表达式G+H-G(A+B)H的最大最小秩,其中G,H分别为矩阵A和B的广义逆,进而给出A,B关于广义逆的吸收律成立的等价条件。
2) minimal rank solution
最小秩解
1.
In addition,for the minimal rank solution set,the expression of the optimal approximation solution to a given matrix is derived.
另外,给出了中心对称最小秩解集合中与给定矩阵的最佳逼近解。
3) minimum-rank update method
最小秩修正
1.
The minimum-rank update method for structural damage detection is studied here.
分析并改进了最小秩修正方法。
4) minimum rank perturbation
最小秩摄动
1.
Based on the characteristics of reticulated shells, the formulations of residual modal force and the minimum rank perturbation theory are derived.
针对网壳结构特点,推导了剩余模态力理论和最小秩摄动理论的基本公式,研究二者在大型网壳结构损伤识别应用中的有效性。
2.
The sensitive mode shape is used to determine damage location and the minimum rank perturbation theory is used to assess damage extent.
采用最小秩摄动理论定量评估结构的损伤程度,与Baruch方法及Berm an方法进行比较分析。
5) minimum rank theory
最小秩理论
1.
A damage identification method of truss structures using a minimum rank theory is presented.
本文给出一种基于矩阵最小秩理论的计算方法,对损伤结构的模态力余量方程进行求解,反演得到总体刚度矩阵的变化量。
6) minimum rank method
最小秩方法
1.
The existing problem of the structural damage identification based on the minimum rank method was studied.
针对结构损伤识别中的最小秩方法存在的问题,经过研究发现,对测试模态进行关于质量矩阵的正交归一化可保证反演后刚度矩阵的对称性;提出了一种迭代修正算法,可保持反演结果的稀疏性;基于模态力余量,定义了一种损伤指标来预先判定结构损伤单元的位置,并可据此选取合适的测试模态阶数进行反演计算。
补充资料：最小辐亮度与最小辐照度(见核爆炸火球)
最小辐亮度与最小辐照度(见核爆炸火球)
minimum-brightness and minimum-irradiance
zuixiao fuliangdu yu zuixiaofu乙haodu最小辐亮度与最小辐照度(minimum-brightness and而nimum一irradianee)见核爆炸火球。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条