diminishing balance,declining balance depreciation,reducing-balance method,decli

The deep research on depreciation method of double decline balance;

双倍余额递减折旧法的深入研究

Preliminary Study on Development of Management System for Information Related to the Remaining Amount of Materials;

物质余额信息管理系统开发初探

This paper mainly discusses some distributions of the risk process with stochastic return on investment,including some properties of supremum distribution and surplus distribution,and deduces the formula for them and ruins probability and investment strategy.

讨论了带随机返回投资的风险过程的一些分布,包括带投资风险过程的剩余分布、余额分布的一些性质,推导了它们及破产概率与投资策略所没满足的方程。