通信性

With the rapid development of networks and communications technology the enterprise network scale is expanding unceasingly and the network isomerism are common more and more.

中文摘要：随着计算机技术、网络通信技术的飞速发展和在企业中的应用的日趋成熟，企业的网络规模在不断扩大，网络异构性越来越普遍。

Based on the elliptic curve cryptosystem, a multi-key sharing scheme in which the Lagrange interpolation polynomial is used and the cheaters can be detected is presented.

文章利用拉格朗日插值的思想，提出了一种基于椭圆曲线的可防欺诈的动态多密钥共享方案；方案中每个参与者的子密钥可以不受限制的重复使用，因此在更新主密钥的时候，无需更改参与者的子密钥，从而减少了可信中心与参与者之间的通信量；方案可灵活地增删参与者，且安全性是基于椭圆曲线离散对数问题的难解性，因而其安全性比在有限域上更高；方案实现过程中解决了检验子密钥真伪的问题。

Such unknowns make it possible for seemingly long-gone data to turn up in a court under the order of a subpoena, or worse, in the hands of a hacker. On August 13th, though, a team of computer scientists led by Roxana Geambasu of the University of Washington, Seattle will unveil to the 18th USENIX Security Symposium in Montreal an e-communications system that destroys messages soon after they have been sent.

这种未知性，使得很久以前的数据似乎很有可能随时被传上法庭，更糟糕的是落入黑客之手。8月13日，在蒙特利尔召开的第18届USENIX安全专题讨论会上，西雅图华盛顿大学以Roxana Geambasu为首的计算机科学小组将推出一套全新的电子通信系统，该系统能够在信息发送完后不久将其销毁。

The formal description technology based on LOTOS, the formal transformation, the formal validation and implemenation are generalized. Constructions of communication service and communication protocol, transformation from service specification into protocol specification based on bisimulation equivalence are also stated in detail. Application of LOTOS specification styles and architecture concept in service and protocol design is studied as an emphasis.

归纳总结了基于LOTOS的形式化描述方法、形式化的转换、验证和实现等方法理论，以及通信服务和协议的构造方法及服务规范到协议规范的等效性转换方法，重点研究了规范风格和结构概念在服务和协议设计中的应用。

The main characteristics of thenew generation of network computing are large-scale, decentralized control, dynamic,and autonomous. Since publish/subscribe systems have the advantages of loosecoupling, anonymity, many-to-many communication and scalability, they have becomeimportant infrastructure middleware platforms support for the new generation ofnetwork computing.

新一代网络计算是以大规模、分散控制、动态性、自治性和松耦合为主要特征的分布式计算，而发布／订阅系统具有松耦合、匿名、多对多通信和可扩展的特点，已成为支持新一代网络计算的重要基础中间件平台。

In this paper, typical physical topology and its characteristics of low-voltage network are analyzed in detail, topology model of power line communication over low-voltage network is given for simulation, and the means based on Ant Colony Optimization is put forward, which is used to construct the power line communication networks without any available information of power line wiring in a building On the basis of these, the effect and anti-destruction means are analyzed and tested by emulating experiments.

该文详细地分析了典型低压配电网物理拓扑结构和特点，给出了低压配电网通信仿真拓扑模型，提出了一种适用于未知建筑物电力线拓扑结构条件下的蚁群电力线组网方法；在此基础上，通过仿真试验验证了该组网路由算法的有效性和抗毁性。

The data needs to be transferred from testers to the host computer in the testing system for real-time acceleration. For the sake of improving the controlled at real-time and the reaction rate of accepter for data, at the condition of Windows XP, the serial communication between signal PC and multistation of sensors was realized and the data collected by each sensor can be got at real time.

在实时加速度测试系统中，数据需要从测试仪传送到主机上，为了提高控制的实时性及接受端对数据的反应速度，利用VC++7.0下的Active控件和RS-232串行接口，实现了在Windows XP环境下，单台PC机与多台传感器的串行通信，并能实时获取各传感器的数据采集。

Multithreading technology is adopted to improve the real-time communication.

多线程技术的采用提高了通信的实时性。

A new parallel high level data link controller was designed using the hardware description language on the FPGA device. The HDLC protocol controller can construct or deconstruct the multi-channel HDLC protocol frames in parallel way. As a result, it improved the robust and reliability of the whole system.

在FPGA内部采用硬件描述语言并行设计多通道的高级数据链路控制协议控制器，该协议控制器有效利用FPGA的片内硬件资源，实现了并行解析和生成多通道的HDLC协议报文，提高了数据通信系统中的多通道扩展性、实时性和稳定性。

It was elaborated the technique principle and the correspondence mechanisms of the software of SRIE ITSM, analyze the loophole of SNMP, point out in the safety in the application measure, the aim is raising the availably SRIE ITS

阐述SRIE ITSM软件的通信原理，分析SNMP漏洞，指出在应用中的安全性措施，旨在提高 SRIE ITSM的可用性。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。