To design prompting contract of retrorse supply link under anisomerous information .

信息不对称下的逆向供应链激励契约设计。

The effect of different convection velocity on metal dendritic crystal growth is studied . The result shows that the upstream and downstream dendritic crystal present anisomerous pattern : the growth velocity of upstream is much quicker than the downstream .

结果表明：在有对流情况下,上游及下游枝晶呈现不对称形貌，上游枝晶生长速度明显比下游方向生长速度快。