主动提出的

In order to improve the existing generic service oriented intrusion tolerant system in aspect of architecture and function, this paper presents an improved adaptive intrusion tolerant system with improved architecture, functional modules and key techniques. From an overall consideration of the system, mixed with firewall, intrusion detection and other traditional technologies, IAITS combines redundancy, diversity and various fault tolerant techniques, thus enhancing reliability through active replication and secure multicast, reaching tradeoff between system complexity and intrusion tolerance ability by redundant design only in most vulnerable components, and supporting data protection on the basis of architecture with only a little extra cost in software and hardware by making use of topological coherence between application servers group and key share servers group.

本文针对目前面向通用服务的容忍入侵系统在架构和功能上的不足，提出了一种改进的自适应容忍入侵系统，在系统结构、功能模块以及关键技术上做出了改进的设计：从整体上考虑系统结构，将防火墙、入侵检测等传统的安全技术融合到容忍入侵系统的设计中；综合了以冗余与多样性为主的多种容错技术，采用主动复制与安全多播，增强了系统的可靠性；仅在最易受攻击的部件上采用冗余设计，兼顾系统复杂性与容侵能力；利用应用服务器组和密钥服务器组在拓扑结构上的一致性，在基本不增加软硬件开销的情况下，从架构上支持数据保护的功能。

First, the decentration of the shareholders cause the absence of the active investors, none is willing to implement the rights of the shareholders by representing other shareholders, the managers become the insiders to control the company.

股票期权制度作为一种有效的公司激励机制广受发达的市场经济国家所推崇，然而，在美国，成批登场的大公司财务造假丑闻却对这种制度提出了挑战，首先，股权过度分散导致维护公司利益的&积极股东&缺位，没有哪一家股东能够或愿意积极主动地代表股东对经营者行使所有者权利，公司经营者成为控制公司的&内部人&；其次，美国对股票期权的会计处理规定，股票期权的价值不计入公司成本，也为经营者造假提供了合法的便利；再次，中介机构为了自身的利益，不能保持绝对的独立性，成为公司造假的帮凶；另外，美国倡导自由经济，依靠行业自律和市场制衡来约束市场参与者的行为，一方面给经济繁荣带来了活力，同时也带来了巨大风险，如果没有严密的制度保障和严厉的打击及监管，谁也不会放弃低成本的&道德风险&所带来的好处。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐