New ssm multicast service model , which can overcome the shortages of traditional multicast model , hopefully could be widely deployed on internet in the near future . the main research content of this paper include : different multicast models and protocols are compared and researched ; current internet multicast architecture and its problem are analyzed , point out that ssm multicast is a easy - to - implement , extendable and access controllable new service model ; ns - 2 simulator software , its internal structure and how to use it to research network protocols are investigated , emphasis on the implementation mechanism of its multicast simulation ; based on ns - 2 , the new ssm multicast model are implemented , analyze its implementation , and simulate with it , demonstrate the simplicity and efficiency of ssm ; this lay some foundation for further research of ssm , and can be used for reference by ssm practical application 本文的主要研究内容有:对各种不同的组播模型、组播路由协议进行了研究与比较;分析了当前internet的组播体系结构及其存在的问题,指出ssm组播服务模型是一种实现简单、可扩展性强、易于进行访问控制的新型组播服务模型;研究了网络仿真软件ns - 2的组成与内部架构,及如何利用它进行网络协议的分析与研究,并着重研究了其内部组播仿真机制,在此基础上扩展实现了ssm组播服务模型,并对ssm实现机制进行了分析,利用所实现的ssm组播模型进行了仿真实验,论证了ssm组播模型的简单与高效性,为对ssm组播模型的进一步研究奠定了一定的基础,并对ssm的实际应用有一定的参考价值。
The " principles " also provide that the us trans - national corporation should comply with a series of provisions , including reasonable security measures and effective implementation mechanism etc . also , all personal data collected would only be used for the specified purposes . in practice , these provisions are similar to those contained in the " directive " 原则也规定美国跨国企业需要遵守一系列条款,包括合理的保密措施及有效的执行机制等,同时所有个人资料只能在指定用途下使用,这些条款实际上和指引的内容相似。
Parents " participation in school management has been performed in the western developed countries for near 50 years . overcoming its weaknesses by acquiring its strong points , the author summarizes the parents " participation models and constructs their implementation mechanisms , which will promote educational reform and increase school efficacy 西方发达国家实施家长参与学校管理已有近50年历史,取其精华,去其糟粕,构建我国家长参与学校管理的模式及实施机制,有助于加速学校管理体制改革顺利开展,提高学校管理效能。
Lack of necessary legal liability system weakness in legal implementation mechanisms ; the important approaches to realizing the legalization of social security are to improve social security system , to legalize the fund - raising means of social security fund , to resolve the cooperation problem of each legal departments and to strengthen the executive power of social security 加快完善社会保障法体系、社会保障资金筹资方式的法定化、解决好各法律部门的相互配套衔接问题以及加强社会保障执法力度等是实现社会保障法制化的重要途径。
So we must absorb western advanced theories and methods of the policy implementation well , establish in china ’ s special conditions , construct the effective implementation mechanism of the public policy , and solve the deep contradiction which baffles science development from the system . these have important theories and realistic meanings to future development in china 为此,充分吸收西方先进的执行理论和方法,立足我国国情,构建公共政策有效执行机制,从制度上解决制约科学发展的深层次矛盾,对未来我国的发展具有重要的理论和现实意义。
The best way to achieve implementation is to ensure the widest possible participation and an optimal balance between developed and developing countries in the conference of the states parties , the robust implementation mechanism of the convention , and to make sure that it functions effectively 首届《公约》成员国会议将于2006年底举行。 《公约》得以切实履行,有赖国际社会积极参与,在已发展国家和发展中国家之间亦需取得平衡,设立完善的实施机制,并确保其有效运作。
After studying several implementation mechanisms , we designed and implemented a page - based message storage management system named ismqsm . ismqsm provides volatile queue , persistent queue and transactional queue to satisfy several levels " reliability and efficiency requirements . to assure operation ' s atomicity and storage ' s consistency and integrity , ismqsm supports transaction and sub - transaction Ismqsm提供内存队列、持久队列和事务队列三种消息缓冲机制,能满足不同级别可靠性和操作效率的需求; ismqsm采用页式管理消息和队列,以提高存储利用率; ismqsm还提供了事务恢复,支持用户级事务,并且使用内部子事务来实现关键数据操作,以保证消息存储的完整性和一致性。
As a major innovation point , the article puts forward the implementation mechanisms of coordination development between urban and rural areas : innovative system is the head ; infrastructure construction and social development are the base ; restructuring the industrial structure is the driving force ; two - way flow of production factors is the prop ; sound legislation and system are the guarantee ; urban and rural integration is the purpose 作为主要创新点,提出了以制度创新为先导,以基础设施建设和社会事业发展为基础,以产业结构调整为动力,以城乡生产要素的双向流动为依托,以健全的立法和完善的制度为保障,以城乡一体化为目的的统筹城乡发展的实施机制。