数据流

With this technology the multimedia information can be displayed while it is being downloaded, so that the users do not have to waste their time when downloading, and there will be a redically reduced need in the system memeory capacity, and then the multicast technology of the streaming media transmit technology has more advantage, it has the functions which can transmit a stream for a group of client without any delay or broadcast storm. Therefore it can inprove the availability of the network system.

流媒体以边下载边播放的特点，不但除去了用户漫长的下载等待痛苦，而且极大地降低了对系统存储容量的需求，同时流媒体传输技术中的组播技术具有更大的优势，它能让媒体服务器同时向多个客户端发送连续数据流而不产生延时，而且又不会产生广播风暴，极大地提高了网络利用率。

The traffic sensor data screening of intelligent transportation system was discussed and the data flow exchange between data screening unit and other system of Traffic Information Center was described. The content and general procedure of data screening were introduced. The checking condition of data reasonableness and consistency in different traffic conditions were analysized.

对ITS中交通传感器数据的筛选问题进行了探讨，描述了数据筛选单元与其它系统间数据流的交换情况，介绍了数据筛选的内容和一般过程，并详细分析了不同交通条件下，不同交通传感器数据的合理性检验和一致性检验条件。

It use the data picture、data dictionary to analyze the data of system need in the system analyse.

在系统分析中先后用数据流图、数据字典分析了系统所需的各种数据。

When DTD is available, XSLC can analyze the data model and encode elements according to the relationship of father node and son node, compress data part according to its type, and support query operations app-lied on compressed files, as for only one time of scanning data is needed, all the processes can be implemented in XML data stream environment.

提出XSLC（XML stream layered-coding compression）算法，通过预先扫描DTD对数据模式进行分析，继而根据元素的父子关系进行子元素层面的编码；同时根据数据类型进行数据压缩，能够在压缩之后的文档上进行查询，因为仅需一遍压缩扫描所以可以应用于数据流环境。

Nowadays, limited memory can not satisfy the requirements of constantly increasing data.

由于计算机的内存有限，数据窗口技术只针对最近的数据，而最近的数据常常导致数据挖掘系统中的分类器过配，文中介绍了解决这一问题的方法，并讨论了数据流挖掘技术的应用。

The simulation results demonstrate that the proposed mechanism can obtain higher throughput and lower packet loss rate, and achieve reliability and real-time performance on the receiving side.

仿真结果表明：该策略能使流媒体数据流获得较高的吞吐量和较低的丢包率，有效提高流媒体传输的可靠性和实时性。

Different from traditional data bases, data streams have the following distinguished characteristics:(1)unbounded volume of data;(2)rapid arriving rate of data;(3)uncontrollability of tuples\' arriving order;(4) being processed only once for each tuple, except being reserved.

与传统数据库不同，数据流具有如下特点：(1)数据总量的无限性；(2)数据到达的快速性；(3)数据到达次序的无约束性；(4)除非可以保存，每个元素均只能被处理一次。

MACT uses an improved cone tree as the metaphor of network topology. Real time traffic between every two directly connected nodes are represented with animated color lines, and the shade of each line's color is determined by the data rate through the line.

MACT用改进的Cone tree作为网络拓扑隐喻，用不同颜色的动态模式变换线，表示任意两个相连节点之间的实时数据流（颜色表示数据流速，模式变换的方向表示数据流向），用始于一个节点的两种颜色的圆柱，表示流入和流出该节点的数据总量。

Reverse traffic can lead degradation of TCP performance. To resolve this problem, we analyze the impact of reverse traffic carefully, and obtain the relation between reverse traffic and TCP performance. We propose an approach of rate control optimized for unidirectional trip time, and design an algorithm for rate control, called Unidirectional Trip Aware Rate Control, UTARC.

针对反向数据流量会导致TCP性能下降的问题，本文详细研究了反向数据流量对正向数据流应答的影响，揭示了反向数据流量与TCP传输性能之间的联系，提出了面向单向延时优化的速率控制方法，并设计了相应的速率控制算法UTARC。

In addition to these features, the full VLAN functionality and the option of prioritising the data flows – Quality of Service or QoS – which is so important for Voice-over-IP applications – according to IEEE Std 802.1 is worthy of note.

除了这些特点，完整的VLAN功能性和数据流优先排序数据流-服务质量或QoS-根据IEEE Std 802.1，这些对于IP语音应用程序都是非常重要的，这些都值得我们注意。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了