Cepstrum Analysis for Surface Waves on Gels

Recently, some researchers have revealed the coexistence of capillary and Rayleigh waves on gel. The coexistence of some waves having the same frequency but different velocities can be confirmed by cepstrum analysis. Therefore, we examined the applicability of this method to the investigation of surface waves during the gelation process of tungstic acid. As a result, the coexistence of two waves was confirmed. The identification of the modes of the two waves will be the subject of a future study.