In order to accommodate to the development of high- speed network,this article analyzes the rule- matching algorithm of Snort,an open source- code NIDS,and presents an algorithm by adjusting the sequence of rule matching through feedback of intrusion’s frequentness,and the usage of an aging factor to dispel historic influence,consequently the rule matching speed is effectively increased.

By using the concept of aging injury factor,the relation between the aging factor and aging time and aging temperature was built,the heat oxygen aging process and mechanism of a rubbe.

The aging factor (A) is introduced for the convenience of classifying the aging level of cables.

Study on multi-stress aging of epoxy/mica insulation based on fingerprint parameters;