一种新的膜系设计方法——Needle法

Ｎｅｅｄｌｅ法是一种先进的膜系设计方法，它克服了传统优化方法容易陷入局部极值的缺点，通过在膜系中插入薄层，使得评价函数降低，优化设计可以从任意给定的一层膜开始，文中给出了其数学模型及详细的推导。

A New Method of Coatings Design——Needle Method

The Needle method of coatings design method, overcomes the shortage of the conventional optimum methods which always meet too many local minimum. It makes the merit function decrease by insert new thin layer. Design can start with one layer chosen randomly. The methematical model and explanations of this method are presented.