Firstly, the image is projected on to the orthogonal basis of SVDQ, then the projection coefficient vector is used as algebraic feature of image and applied to recognition.
Methods: Orthogonal experiment was arranged to screen the optimization formulation of suspending 'reagent to variation coefficient in the rate of indicators.
方法：采用正交试验安排试验，以变异系数为指标进行细胞悬浮剂最优配方的筛选。
3
The effect of coefficient of variation of uncertain parameters on the probability characteristic of consolidation for sand-drained ground is studied by the method of orthogonal experiment.