Mapping method about chaotic sequence is researched to encryption factorsequence using two-dimensional discrete chaotic model.
采用二维离散混沌模型，研究了从混沌序列到加密因子序列的映射方法。
2
The sequence of the model factor effects (N>K>P) and the relation between high yield and fertilizer application, and the mutual functions among the yield factors of various fertilizers.
明确了模型因素效应顺序（氮肥＞钾肥＞磷肥）和高产与施肥的关系，以及各肥料产量因素间的交互作用效应。
3
This model has considered many sorts of medium, the simulation of excavation process and construction sequence, and the semi - infinite plane of surface factor as well.