安全

Chapter four first analyzes the forming reason for the supply chain satety st -ock and analyzes the relationship between lead time and the safety stock of com -ponent commonality, and it establishes a decision framework of safety stock. There is a case study based on an Auto-electric Motor Company.

第4章介绍了供应链的安全库存的形成，并结合汽车电机产品的特点和企业库存特点，分析了随机提前期下采用通用件对安全库存的影响，提出了随机提前期下安全库存的控制策略，并在结合实例分析了安全库存控制策略选择问题。

In the design of SMCOS, introduce the software and hardware developing platform of SMCOS at first, then describe the system characteristic and hierarchical structure, tell the course of design and implementation of the software system of the SMCOS finally, mainly tell software architecture, design method to command interpreter, transmission module and file management, especially carry on deep explanation and discussion to the security environmental management of SMCOS, design the secure pseudorandom number generator according to systemic characteristic; Implement AES cryptographic algorithm, and optimize in term of the characteristics of AVR platform, make it reach the faster speed of encryption in case

在SMCOS的设计中，首先介绍了SMCOS的软硬件开发平台，然后描述了系统特性及其层次结构，最后讲述了SMCOS的软件系统设计与实现过程，主要讲述了SMCOS的软件架构、命令解释器、传输模块以及文件管理器的设计方法，特别对于SMCOS的安全环境管理进行深入的讲解及探讨，针对系统特点设计了安全的伪随机数生成方法；实现了AES加密服务模块，并针对AVR平台的特点进行了优化，使其在占用较小的代码空间的情况下达到较快的加密速度；改进了PIN的认证方法，对其传输过程提供了安全保护并采用了安全的验证方式以避免可能遭受的攻击：设计了相互认证命令，缩减了认证过程的时间消耗并提高了安全性。

The security problems in our country are low population growth rate and overpopulation,population quality not conforming to the requirement of social development,AIDS and other diseases threatening population health,high sex ratio,quick aging and the pressure of employment,etc.

一、人口安全问题的提出人口安全是一个国家最基本、最重要的安全问题之一，直接关系国家的整体安全、社会的持续稳定和健康发展。

Due to the analysis of security structure of the remotion testing and control system, design the VPN gateway for the system.And the design foucses on the remotion testing and control system security modle, it makes the information turned to remotion user by the tunnel safty.

基于对远程测控系统安全框架的分析，设计了适用于远程测控系统的VPN网关，并对其中的远程测控系统安全模块进行设计，将信息通过安全的隧道转发给远程用户，保障测控数据的传输安全。

Integrated appraisal method is used to score short-term food security status, and how to stabilize food market via reserve of food and i

对于短期粮食安全，本文主要采用综合评价法评价粮食安全态势，以及如何用粮食储备和国际贸易保证粮食市场稳定；对于长期粮食安全，本文采用类比推理的方法预测未来我国粮食供需的可能形势，并利用专家知识考虑可能影响中国未来粮食安全的关键因素并提出相应的对策。

In this paper,we simply introduces the whole design scheme of security network access server; subsequently, we deeply analyse the principle and structure model of RADIUS and TACACS in the distributed security authentication system, and more explain the idea and implementation of design. On the other hand, in order to authencating、authorizing and accounting more securely, efficiently and accurately to the remote users, we put forward a series of key techniques which are used in analysis such as MD5 encryption arithmetic、packet retransfer、buffer storage、interprocess communication and so on, and prove the compatibility of the system through employing the commercial software Shiva AccessManager.

本论文首先简要介绍了《安全网络访问服务器》的总体设计方案；之后，深入分析了分布式安全认证系统RADIUS和TACACS的原理与结构模型，并进一步详细阐述了安全认证模块的设计思想和实现，深入剖析了系统中引用的MD5加密算法、数据包重发机制、缓冲区存储、进程间通信等技术，这些技术使得系统能安全、高效、准确地对远程用户进行认证、授权和计费，而且通过使用商用软件Shiva AccessManager的测试验证了该系统的通用性。

Further research reveals that the connotation of China's energy safety is firstly seen as the safety of the coal supply chain,which means the safety of railway transportation of coal,and secondly as the safety of the oil supply chain.

进一步的研究揭示，我国的国家能源安全的内涵首先表现为煤炭的供应链安全，即铁路的煤炭运输安全；其次才表现为石油的供应链安全。

People who are generally more safety conscious (and therefore more likely to wear gear) may choose to skate in safer areas such as parks or back yards.

即街道公园本身不太安全==〉本身注意安全的人会选择安全的地方==〉来这里的人都是本身不太注意安全的。这里最后一点是我给补充上的，原文没有论证完全，但是基本的框架还是有的。

this paper analyzes the types and characteristics of the coastal island tourism in Mainland China,studies the three stages and three patterns of its development; based on the analysis and study above, this paper concludes the characteristics, external forms, and problems of safety issue in coastal island tourism in Mainland China, finally, this paper pertinently puts forward the managerial strategies about the safety issue mentioned above.

提要： 本文分析了我国沿海岛屿旅游的类型与特点，总结了我国沿海岛屿旅游发展的三个阶段和旅游发展的三种模式；分析了岛屿旅游安全的特征、岛屿旅游安全表现形态和岛屿旅游存在的安全问题，提出了沿海岛屿旅游安全管理措施。

The article uses the theories of Management Principle and Safety Principle,then puts forward the fundamentals of safety management of resourced-based island tourism and probes into the measures of the management of person,item,thing,from the problems on the safety management of management mechanism,tourism subject,object and media.

岛屿旅游是21世纪旅游的新热点，文章运用管理学和安全学的理论，从资源型岛屿旅游安全的管理机制与旅游主体、客体和媒体的安全管理存在的问题入手，提出了资源型岛屿旅游安全管理的基本原则，探讨了资源型岛屿旅游人、事、物3要素管理的相应措施。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。