In the present study seismic wave propagation in heterogeneous media is numerically simulated by using the pseudospectral method with the staggered grid RFFT di
Sakhaite specimens from an endogenous borate deposit in Hunan Province, China have been studied in detail by means of transmission electron microscopy (TEM). Th
In this paper, we propose a concept of sub classes and its evolution stability for the Wolfram’s classes. Firstly, we obtain the sub classes of the Wolfram’s