查询词典 security system

The system is composed of trust model, structure and function design, certificate database design, and implements the core functions of a standard CA system including signing, issuing and revoking certificates. The security communication modular of the system is based on the SSL Protocol to enhance the security of system communications. Besides, the kernel functions of the system are packed into DLL library, including symmetrical encryption algorithms, digest algorithms, digital signature algorithms and certificate operations such as certificate request, certificate building, certificate format conversion etc.

本文的主要工作是：在研究PKI相关技术的基础上，设计了企业CA系统方案，包括信任模型、结构和功能设计、证书库的设计；实现CA系统中最为核心的数字证书管理，提供数字证书的签发、注销和发布等各项功能；实现了基于SSL协议安全通信模块，增强了系统通信的安全性；系统采用动态链接库技术封装了对称加密算法、数字摘要算法、签名算法以及证书处理(包括证书请求、证书生成、证书格式转换等功能)，以动态链接库的形式提供调用接口，成为应用的安全基础设施。

This paper designs the automatic text categorization system of public security information based on Support Vector Machine,according to the requirements of public security information.This system not only distinguishes the text classification automatically,but also retrains the features information at different stages of the categorization process.It will support the further information procession.Meanwhile,this system reduces the coupling degree of the subcomponents,provides the flexible system structure,and improves the adaptability of system.

根据公安情报分类系统的需求，设计了基于支持向量机的公安情报分类系统，该系统不仅能够实现情报文本的自动分类，而且能够保留在情报文本分类的不同阶段语料的特征信息，为情报信息的进一步加工处理提供支持，同时系统中各模块间采用松耦合的方式衔接，提高了系统的适应性和灵活性。

At present, a cheap, efficient and feasible hot-line sales system is in critical need. Against to the problem of old system in security, real time and upgrading, some new technics , such as System Develop Model, GPRS, Terminal OS, System Security and Data Backup, are applies to build a strong and smart system.

鉴于彩票销售系统的现状，急需推出一套廉价、高效并且可行的全热线销售系统，针对原有准热线系统的安全性、实时性以及维护升级等存在的弊端，提出了改进及改造的方案，同时探讨了其中用到的几点关键技术：前端、通信、后台、系统安全性以及数据备份手段等，最终实现全热线彩票系统的实施及应用。

The following exciting results are revealed: 1 When considering the influence of some nonlinear elements such as hard-limit of exciters, the effects of some devices such as Power System Stabilizer and Static Var Compensator which can introduce positive damping in power system, the reasonability of system parameter values in simulation, the SNB surface and HB surface on the boundary of SSSR will turn close to each other and even coalesce together; 2 Under some conditions, coupling between slow exciters and shunt capacitors will bring negative damping in power system dynamics, which increases the possibility of oscillatory instability. So the power system with mass shunt compensators is easily subjected to the oscillatory instability. In recent years, chaotic phenomena of power system have been reported many times. Some simulation studies even found chaos existing inside the power system SSSR. In this dissertation, chaotic phenomena in power systems are thoroughly studied in order to make clear the relation of chaos and SSSR. The following results are derived: 1 Based on Li-Yorke Theorem and their definition on the chaos, the existence of chaos in power system is verified; 2 Three possible routes of causing chaos in power system are found and deeply investigated. They are route of cascading period doubling, route of directly initial energizing and route of torus bifurcation (or quasi-periodicity). The latter two routes are investigated for the first time in power system stability studies; 3 When the stability conditions of chaos are broken, it is found they can lead to voltage collapse, angle divergence, or voltage collapse with angle divergence simultaneously.

针对在电力系统小扰动稳定区域内可能存在混沌吸引域的有关报道，本文深入研究了电力系统混沌现象的出现途径和与系统失稳模式之间的关系：1利用Li-Yorke定理和Li-Yorke的混沌定义，从理论上证明了电力系统混沌现象的存在性；2发现了电力系统中导致混沌出现的三种可能途径：倍周期分岔导致混沌、初始能量直接激发混沌和经由环面分岔导致混沌，并对后两种新发现的途径进行了较为细致的研究；3发现了混沌极限环破裂导致电压崩溃、角度失稳以及电压崩溃和角度失稳同时出现的现象，其中混沌极限环破裂导致系统角度失稳和电压崩溃及角度失稳同时出现的现象均属首次报道；4证明由微分-代数方程描述的系统模型，其小扰动稳定域的边界只包含HB、SNB和SIB三种分岔界面，在SSSR的内部和边界上，均不可能存在会导致混沌的点，从而将混沌现象排除在小扰动稳定域的研究之外，简化了后者的研究工作。

Factory remaining hot water, remaining vapor and boiler heating system, were adopted in tilapia overwintering. Every step, such as site selection, pond and fish preparation, cultivation of fish, fish selection, timing of overwintering, stocking density and managements during overwintering, was compared among three systems. The results of data analysis showed that the survival rate in remaining hot water system was 12% higher than in remaining vapor system and 21.25% higher than in boiler heating system. The overwintering cost in remaining hot water system was 735 Yuan/m~3, which was 18 Yuan lower than in remaining vapor system and 71.4 Yuan lower than in boiler heating system. The profit in remaining hot water system was 201 Yuan/m~3, which was 162 Yuan higher than in remaining vapor system and 275.4 Yuan higher than in boiler heating system.

本论文采取了余热水、余热气、锅炉加温三种方式对进行罗非鱼越冬保种，从地点选择、越冬池、鱼的准备、越冬苗种的培育、越冬前催肥、越冬鱼的选留、越冬鱼进池时间和密度、越冬期间饲养管理等环节进行对比试验获得了三种方式的试验数据并进行了分析讨论，结果显示：余热水越冬雌亲鱼的成活率比余热气越冬高出12％、比锅炉加温越冬高出21.25％；余热水越冬雌亲鱼的成本每立方米为735元比余热气越冬的成本每立方米低18元、比锅炉加温越冬的成本每立方米低71.4元；余热水越冬雌亲鱼的利润每立方米为201元比余热气越冬的利润每立方米高162元、比锅炉加温越冬的利润每立方米高275.4元。

A secure system consists of many sub——systems, even though every one of those sub-systems satisfies a certain security property, the composed system may not be secure, i.e. the composition maybe not satisfy the security property. It does mean that the security property should be composable.

安全系统是由许多子系统组成，每一子系统都必须满足一定的安全性质，但这不能保证由这些子系统组合而成的系统也是安全的，即组合的系统不一定也满足给定的安全性质，所以要求系统的安全性质满足可结合性。

The main reason why American mutual fund is so advanced is that there is the concerted mechanism environment for mutual fund, such as the mature financial market, sufficient investment capital supply, well-developed system of laws and so on. Adopting the specific exponents of Shanghai and Shenzhen Security Market, fund exponent yields, all weekly yields of mutual fund in specific periods, etc., the positive analysis of the coordination of Chinese mutual fund and Security Market demonstrates that this coordination is not ideal generally. On condition that the market characteristic of mutual fund is made clear, mutual fund can develop conceitedly and healthily by developing security market, increasing market efficiency, providing more fund, improving fund management, standardizing relative system of privately offered funds and so on, and optimizing the market environment to develop mutual fund.

美国开放式基金之所以发达，主要原因在于开放式基金具有协调发展的制度环境，如成熟的金融市场、充足的投资资金供给、完善的法律体系等；采用沪、深证券市场特定指数与基金指数收益率，及特定时期内所有开放式基金的周收益率等指标，对我国开放式基金与证券市场的协调性的实证分析发现，二者协调性程度总体上不理想；在明确开放式基金发展的市场过程性质的前提下，通过促进证券市场的成熟、提高市场效率、完善法律、拓宽基金资金供应渠道、完善基金治理结构、规范私募基金发展等配套措施，优化开放式基金发展的市场环境，才能不断促进开放式基金的协调、健康发展。

Liu Jinguo, vice minister of the Public Security Ministry, said at a meeting of the Central Committee for Comprehensive Management of Social Security that China's Public Security Ministry is currently considering reforms to the household registration system and is seeking ways to abolish the wall between the rural and urban household registers and establish a unified household register management system in both urban and rural areas.

公安部副部长 Liu Jinguo 说，在一次"社保基金综合管理"小组会议上，中国公安部正在考虑对户籍制度进行改革，寻求消除城乡户籍差别、建立城乡统一户籍管理制度的方式。

Moreover, mercerization and socialization are the tendency of the public security working development. Based on the tendency and problem, the paper argues that we will construct a new society public security system. The new system will based on community society public security, combines government management and public ...

应基于社会公共安全体系发展的趋势和问题，以社区治安为基础，发挥公众和社会组织的功能，重新整合公共安全要素，在中国公共行政制度创新的压力下，构建一个政府管理与公众参与相结合、社会化和市场化相结合的新型社会公共安全体系。

It is understood that this version is the series of Kaspersky 8.0, the Chinese version, adopted a new anti-virus engine, engine for dual-core and four-core CPU platform optimization, can greatly improve the system scanning speed, and a "4 D security defense System ": that is, RD registry to protect, FD defense document protection, ND network defense, AD application protection, integration into the active defense technology and integrated firewall, to Automatic for the application level of security classification, for different levels of application of different security policies and access control.

据了解，该版本即为卡巴斯基8.0系列的中文版，采用了全新的反病毒引擎，引擎针对双核和四核CPU平台优化，能极大提高系统扫描速度；并采用"4D安全防御体系"：即RD注册表保护、FD文件防御保护、ND网络防御、AD应用程序保护，融入主动防御技术和集成的防火墙，能够自动为应用程序的安全级别进行分类，针对不同级别的应用程序采用不同的安全策略和访问控制。

World War II: Battle of Saipan - Americans take Saipan.

1944年的今天，美国在塞班战役中拿下塞班岛。

When the scorner, the rejecter of truth, has become presumptuous; when the routine of work in the various money-making lines is carried on without regard to principle; when the student is eagerly seeking knowledge of everything but his Bible, Christ comes as a thief.{DA 635.3

当讥诮和拒绝真理的人，到了任意妄为时，当追求财利者罔顾按道义经营谋利时，当学人正在兢兢业业地研究各种知识，而单把圣经丢在一边时，基督要像贼一样来临。