查询词典 passive system

In this paper,the design methods of time difference receiver of passive detection and tracking radar system,based on passive position finding of three station time difference,are presented in detail,and channelization receiver technique and mixer threshold detection method are adopted.

较详细介绍了一种基于三站时差定位体制的无源探测与跟踪雷达系统时差接收机的设计，该方案采用了信道化接收技术和混合门限信号检测方

This paper investigates the distinct character of HouRen Motif -- passive pursuit and feminine temperament and multi-angle analysis the cultural origin that caused this character's formation: developed farming civilization and the feminine consciousness came into being from it ; the gregarious consciousness of Confucian culture and life pursuit that people seeks value orientation in temporality world and ethics network; the passive of value evaluation of morality; the conception that doing something in accordance with denomination restricted by etiquette caused by patriarchal clan system and classification order, the conception of moral commensuration with authority.

本文首先探讨了这一母题的显著特征——"追求的被动"和"阴柔气质"，并多角度剖析了形成这一特征的文化根源：农耕文明的发达和由此而形成的浓厚的母系意识，儒家文化的乐群意识和在现世人生、在人伦网络中寻求价值归依的渴望，道德性价值评价的被动性，宗法礼教和等级秩序下人们形成的按理分行事以及渴望"德位相称"的思想。

In this paper, the concept of network security and security structures of OSI and Internet is introduced, and various threats confronting the computer network are also discussed. Several kinds of network information security technologies, including firewall technology, virtual private network, intrusion detection system, data encryption technology, identity authentication and security protocol etc. are also examined. The security of internal network is the biggest problem in the construction of each network. The solution to this problem lies in setting up a firewall. The theory of a firewall and the approach to its actualization is studied. Intrusion detection system, an important part of the computer network security system, has gained extensive attention. IDS monitors the computer and network traffic for intrusion and suspicious activities. It not only detects the intrusion from the extranet hacker, but also the intranet users. The emergence of virtual private network paves the way for realizing secure connection of LAN quickly and at a relatively low cost. The concept, function, key techniques, including the tunnel technology, and the ways to realize VPN are expounded in this paper. Also introduced is the data encrypt network technology, which is called the soul of computer network security, such as digital digest, digital signature, digital certificate, digital encrypt arithmetic and so on. At the same time, the principle and the process of implementing network security by digital certificate and digital signature, the basic principle and characters of security protocols, and finally, three of the security protocols, concerning the security problems in network, IPsec, SLL and SET are analyzed in detail Computer network system should be a system of dynamic defence, both dynamic and static, passive as well as active, and even offensive, combined with management and technology.

本文系统地介绍了网络安全的概念、OSI及Internet的安全体系结构，并讨论了计算机网络面临的各种安全威胁；内部网络的安全问题是每个建网单位面临的最大问题，可以认为防火墙技术是解决网络安全的一个主要手段，本文研究了防火墙的原理及其实现手段；作为一种主动的防御措施，入侵检测系统作为网络系统安全的重要组成部分，得到了广泛的重视，TDS对计算机和网络资源上的恶意使用行为进行识别和响应，不仅检测来自外部的入侵行为，也监督内部用户的未授权活动；虚拟专用网技术的出现，为实现网络间的连接提供了快速安全但又相对便宜的手段，本文较深入的探讨了实现VPN的隧道技术，并对VPN的概念、功能、实现途径、基本构成、关键技术及发展前景等问题进行了全面论述；数据加密技术是网络安全核心技术之一，本文从数据加密算法、数字摘要、数字签名及数字证书等几方面简要介绍了数据加密技术，并分析用数字证书和数字签名实现网络安全的原理和过程；对安全协议的基本原理、主要特点进行了较为深入的研究，并就网络的安全性问题剖析了三种安全协议：IPsec协议、SLL协议和SET协议。

In passive solar heating room with greenhouse and heat storage, thermal insulation of solar heating room has significant effects on temperature distribution and airflow in the heating chamber of this solar system. Solar irradiation absorber, heat storage and insulation are the main effect factors of the passive solar heating room Heat transfer and gas flow in rock bed worked as solar absorber and storage layer have also been studied, including transport properties.

被动式太阳能温室-采暖房，分析采暖房北墙采用或不采用隔热保温措施时，温室-采暖房内的温度和气流分布情况，模拟具有蓄热层的太阳能温室-采暖房中的对流传热，表明集热、蓄热、隔热是太阳能温室蓄热型采暖房的三个重要方面。

The supervision system has realized IT property condition real-time functions and so on examination, network and operational channel initiative monitoring, prompt short note early warning, has realized from servicers' passive sighting report breakdown to the system failure automatic detection transformation, reduced the breakdown discovery and the solution time greatly, enhanced the network and server's maintenance level effectively; Simultaneously establishes a set of top-down initiative running attention management system, realized the Huhhot Center Sub-branch to arrive at the county sub-branch's integrated management again to the pledge town center sub-branch.

监管系统实现了IT 资产状态实时查看、网络和业务系统主动监控、及时短信预警等功能，实现了由业务人员被动的发现报告故障到系统故障自动检测的转变，大大缩短了故障发现和解决时间，有效提高了网络和服务器的维护水平；同时建立起一套自上而下的主动运行维护管理体制，实现了呼和浩特中心支行到盟市中心支行再到县支行的一体化管理。

Based on the conclusions of passive control and stable conditions of the coupled system, the passive stability configurations of solar sail on displaced solar orbit and at artificial Lagrange point are designed.

被动控制要求太阳帆的法线方向与太阳光之间的夹角保持不变，此时太阳帆的轨道总是稳定的且其轨道参数由太阳帆的初始角动量唯一确定。

Once both the active half and passive half of the EFBM are berthed, channels for the electrical power system, data communications system, and thermal control system will be connected, and then power and data transfer will be initiated.

一旦可调机构和被动机构激活进入对接状态，电力系统，数据通信系统和温度控制系统将被连接起来，能量和数据将开始传送。

In this paper along with require of campus security system,Campus network system should be a system of dynamic defense,both dynamic and static,passive as well as active,combined with management and technology.Based on such a concept.the author has developed an all-round,multi-level model of network security system with different defendable capabilities,,which covers the whole campus.

本文针对校园网的安全系统的需求，进行了深入的研究与分析，按照建立的校园网网络安全应该是动态防护体系，是动态加静态的防御；是被动加主动的防御，是管理加技术的完整安全观念，提出了一个能覆盖整个校园网络的全方位、各个层次、多种防御手段的网络安全实现模型。

Radio Frequency Identification System BE make use of RF energy to deliver data,belong to a wireless communication technique,is 1 kind not the system of contact type,it constitutes the component contain the application system of the reader,electron label,Antenna,host computer, its induction method depends on passive type Tag with active type Tag distinguish analyse, can be divided into induction coupling and back scattering coupling and induced the coupling is the induction method (as 135 KHzs、13.56 MHzs) which belongs to low frequency、high frequency,the back scattering coupling is the induction method(as 915 MHzs、2.45 GHzs) which belongs to superhigh frequency,microwave, and what we construct apply system is use the high frequency 13.56 MHzs of induction coupling method.

中文摘要无线射频辨识系统(Radio Frequency Identification；RFID)是利用RF能量来传递资料，属於无线通讯技术，是一种非接触式的系统，其组成元件有读卡机、电子标签、天线、主电脑应用系统，其感应方式依被动式Tag和主动式Tag来区分，可分为感应耦合和反向散射耦合而感应耦合是属於低频、高频的感应方式(如135KHz、13.56MHz)，反向散射耦合是属於超高频、微波的感应方式(如915MHz、2.45GHz)，而我们所建构的应用系统是使用高频13.56MHz的感应耦合方式。

Effectiveness analysis of shipborne passive jamming system is the method of measure the capability of shipborne passive jamming system.

舰载无源干扰系统的作战效能是舰载无源干扰系统完成规定任务程度的度量。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。