Entropy of a generalized non-stationary spherically symmetric black hole with charge
动态广义球对称含荷黑洞的统计熵

With improved brick wall film model,we have calculated the entropy of the generalized non stationary spherically symmetric black hole with charge.It is shown that for non stationary black hole,if entropy of the black hole and the area of the event horizon are in proportion,the proportional coefficient relates with the horizon velocity of the non stationary black hole.