The earned value analysis in project schedule based on critical path;

Workflow critical path algorithm based on activities;

The activities sequence in critical path of highway project network;

Study of time parameter and key path arithmetic in engineering building project network planning;

Affecting factors analysis of major equipment erection key path in PWR NPP;

Based on the utility analysis in the economics,by searching the key path between a traffic mode and another transfer mode in the intermodal transfer points,a utility cost model is put forward to evaluate and optimize the facilities layout alternatives of the urban intermodal passenger transfer points.

Solution of critical paths based on modified pulse coupled neural networks;

Research of Three Algorithms for Finding the Critical Paths;

A new algorithm for finding the critical paths is proposed by using coding graph and without topological sort.

The locally optimal path between the position of robot and the present object which is gotten from the globally optimal navigation path is accomplished by local path planning with multi-ants in cooperation.

At first,it detects and prunes local keypoints using DOG function.