supported by the National Natural Science Foundation of China (40925016,40830101);the National Basic Research Program of China (2009CB226109)
Complexes involving planar octacoordinate alkaline earth metal atoms in the centers of eight-membered boron rings have been investigated by two density functional theory (DFT) methods.BeB82-with D8h symmetry is predic...
Supported by the Key Program of National Basic Research Program(973)of China(2005CB221505);the National Natural Science Foundation of China(2005E041503)
Based on statistical damage mechanics,the constitutive model of a rock underthree-dimensional stress was established by the law that the statistical strength of rockmicro-element obeys Weibull distribution.The acousti...