资产全寿命周期管理体系建设评价系统架构研究

近年来,国家电网公司开展了资产全寿命周期管理的研究与探索工作,为了评价资产全寿命周期管理体系建设情况,开发了资产全寿命周期管理体系建设评价系统,本文主要对资产全寿命周期管理体系建设评价系统的架构进行了深入地分析与研究,详细介绍了系统总体架构、业务架构、应用架构、数据架构、技术架构等关键内容以及相互关联关系,为其它单位开展资产全寿命周期管理体系建设评价工作提供借鉴。

Analysis of a Prey-predator Fishery Model with Prey Reserve

In this paper,we consider a prey-predator fishery model with prey dispersal in a two-patch environment,one is assumed to be a free fishing zone and the other is a reserved zone where fishing and other extractive activities are prohibited.The existence of possible steady states of the system is discussed.The local and global stability analysis has been carried out.An optimal harvesting policy is given using Pontryagin s maximum principle.