The cusp catastrophe warning model for easily weathered granite considering energy accumulation and dissipation.

To solve the problem of destabilization catastrophe damage to easily weathered granite (EWG) which is easy to soften and disintegrate after absorbing water, there is an urgent need to study the destabilization catastrophe warning of EWG. The destabilization and catastrophe damage characteristics of EWG were analyzed from the perspective of energy accumulation and dissipation. First, the relevant data of EWG were obtained by uniaxial compression and acoustic emission (AE) test.

Performance Study of 40-Gb/s RZ Signals Through Cascaded Thin-Film Filters with Large Dispersion Slope.

The performance of 40-Gb/s RZ signals through cascaded thinfilm filters is investigated by both numerical and analytical means. It is observed that the filtering effects can reduce the eye closure penalties caused by the large dispersion slope of the thin-film filters. In addition, the performance can be further improved by proper frequency detuning between the signal and the center of the filter.