By analyzing radar echo characteristics and surface data, using methods provided by Tropical Cyclone Intensity Combining Criterion Table, the intensity of TY 0312 Krovanh was determined, and TY high wind distribution characteristics were also found out.

Since the 1990s, the physical mechanism of tropical cyclone intensity change has been a forward topic of typhoon dynamics.

Frequencies of strong tropical cyclones showed significant decreasing trends from 1957 to 2004 and the linear trend was much larger when the intensity was strong.

A new detection method based on image recognition with a system of synthetic criterion is presented, in which information fusion is applied to enhance the validity and reliability of coalmine spontaneous combustion detection.

After analyzing the dead zone by usinge of existing method to detect earthing fault in DC system,this paper presents a new method-synthetic criterion,which monitors and finds out such earthing fauit in DC system by detecting the voltage of positive and negative buses,positive and negative pole insulation resistance,and the leaking current sub-circuit.

Study on comprehensive criteria for regional prediction of coal and gas outburst;

Study on comprehensive criteria for the medium and short term earthquake anomaly in East China;