Mechanism of low-resistivity reservoir and identification method of curve shape in Qudi Oilfield;

Molecular construction of Al~(3+) cross-linked polyacrylamide gel and its identification method;

A flexural rigidity modal identification method for long-span continuous girder bridge;

This paper discusses its origin and presents the identifying method.

According to analyses of logging featuresand genesis in these reservoirs, we have developed some identifying methods suitable for Bohai Bay.

Based on integration of rough sets and neural network an identifying method of city\'s industry life cycle is proposed.