It consists of a mixture of viscoelastic memory temperature sensitive foam and high resilient orthodox foam for a high level of comfort and pressure re-distribution.

TEM images indicated average particles size does not change with the mixture ratio of styrene versus MMA and particle sizes distribution was narrow with the presence of MMA.

The method not only would be effective to describe the inter-frame correlation information, but overcome tie of the state probability density function being mixture Gauss distribution.