通过修改搜索策略，用深度优先搜索法确定通 路的矩阵算法，模拟计算有单向回路的通风网络。
The simulative calculation method and the results of multi-fan-station ventilation network with unidirectional circuits are described.
以深度优先搜索作为基本算法，用路径删除和结点删除方法产生多重解，用最小成本法求出最优解。
Based on depth first search, the article USES route deletion and node deletion methods to produce multi-solutions, and then determine the optimum solution with least costing.
在证书链的搜索算法中，通过对多重边的有向无环图用深度优先和广度优先算法结合实现对证书链的搜索，避免证书图中产生的环形链而导致低搜索效率问题。
Furthermore, an algorithm of certificate chain processing is presented, which searches the DAGs, and a DAG by depth-first-algorithm, and inter-DAGs by breadth-first-algorithm.
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