Along with the more and more attention from people to the environmental problems, people constantly attach higher and higher importance to the environmental accounting. In this paper, the disadvantages of environmenta...Along with the more and more attention from people to the environmental problems, people constantly attach higher and higher importance to the environmental accounting. In this paper, the disadvantages of environmental accounting system are analyzed, and also corresponding measures for transforming the disadvantages are proposed.展开更多
There are three parts in this article. In Section 1, we establish the model of branching chain with drift in space-time random environment （BCDSTRE）, i.e., the coupling of branching chain and random walk. In Section...There are three parts in this article. In Section 1, we establish the model of branching chain with drift in space-time random environment （BCDSTRE）, i.e., the coupling of branching chain and random walk. In Section 2, we prove that any BCDSTRE must be a Markov chain in time random environment when we consider the distribution of the particles in space as a random element. In Section 3, we calculate the first-order moments and the second-order moments of BCDSTRE.展开更多
文摘Along with the more and more attention from people to the environmental problems, people constantly attach higher and higher importance to the environmental accounting. In this paper, the disadvantages of environmental accounting system are analyzed, and also corresponding measures for transforming the disadvantages are proposed.
基金Supported by the NSFC(10371092,11771185,10871200)
文摘There are three parts in this article. In Section 1, we establish the model of branching chain with drift in space-time random environment （BCDSTRE）, i.e., the coupling of branching chain and random walk. In Section 2, we prove that any BCDSTRE must be a Markov chain in time random environment when we consider the distribution of the particles in space as a random element. In Section 3, we calculate the first-order moments and the second-order moments of BCDSTRE.
