差分方程隐式部分采用了LU- SGS方法以避免矩阵运算，对化学反应和振动能量源项采用预处理矩阵以解决刚性问题。
The LU-SGS method is used in implicit part of the difference scheme to avoid matrix operations. The preconditioning technique is used for solving stiffness problem.
提出了一种新的病态混叠盲源分离算法。算法首先对观察信号进行预处理，把多余的观察信号剔除，使预处理后的混叠矩阵A是行满秩的；
It is proposed a new blind separation algorithm of ill-condition mixed sources. Observed signals are pre-processed through eliminating redundancy signals so that mixed matrix A is row full rank.
它包括二维匹配滤波预处理以增强血管的灰度，以及用灰度-梯度共生矩阵的最大熵阈值化方法。
Entropy thresholding method is an automatic technique for thresholding of digital images based on gray level-gradient co-occurrence matrix and the maximum entropy principle.
衡平矩阵具有元素的内在冗余性和平衡状态一定程度的稳定性，所以提出将其应用于水印的预处理，从而形成新的水印算法。
An equitable matrix's elements are correlated and its equitable state is stable in some degree, so a new watermarking algorithm including an equitable matrix preprocessing is proposed.
提出的基于矩阵秩的特性适合于预处理方法。
A new method is proposed which is based on matrix rank's feature and is suitable to preprocessing.
提出的基于矩阵秩的特性适合于预处理方法。
A new method is proposed which is based on matrix rank's feature and is suitable to preprocessing.
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