As an example of non-stationary black holes,the relationship between the compression factor of time scale near the event horizon and the temperature as well as the change rate of entropy of the Vaidya black hole is researched.

According to the definition of Shannon s information entropy and the Schwartz inequality principle, the explicit time dependence of the upper bound of the rate of entropy change is obtained for the first time.

On the existence theorem of entropy rate for hidden nonhomogeneous Markov models;

The author of this paper, using this concept, gives a sufficient condition of the existence of the entropy rate for nonhomogeneous Markov chain.

Based on the convergence of bounds for the entropy rate of binary hidden Markov processes,a numerical approach is advanced.

The enthalpy-entropy compensation was thermodynamically examined in the phase changes,chemical reactions and other analogous processes.

In this paper,entropy calculating formula was discussed by means of dissipative structure theory and applied the calculated formula to predict entropy changes of the town ecosystem of Dafeng and Xishan city in Jiangsu province,and the results met the fact we.

Research on entropy change model for enterprise system based on dissipative structure;

Research on entropy change for knowledge state system of knowledge-based enterprise;

The paper discusses the relation of entropy change and quotient of heat-temperature based on the second law of thermodynamics.