数据流

From the aspect of velocity distribution,this paper made a full analysis of the flow condition of integrated oxidation ditch with submerged propeller and training wall based on the measured data.

根据实测数据从流速分布的角度对增设水下推动器和弯道导流墙的一体化氧化沟弯道流态进行了研究分析，在实测和分析的基础上，提出了水下推进器和曝气转盘的合理设置位置，阐明了弯道导流墙对弯道流态的作用并提出了导流墙的合理设置方式，为实际工程设计提供了理论依据和参考。

Then,according to the research and measurement,it brought forward the proper setting position of submerged propeller and aerate rotary disk ,and gave a detailed explanation of the effects of training wall on the flow condition of curve channel.

根据实测数据从流速分布的角度对增设水下推动器和弯道导流墙的一体化氧化沟弯道流态进行了研究分析，在实测和分析的基础上，提出了水下推进器和曝气转盘的合理设置位置，阐明了弯道导流墙对弯道流态的作用并提出了导流墙的合理设置方式，为实际工程设计提供了理论依据和参考。

The primary technical issues with streaming were:· having enough CPU power and bus bandwidth to support the required data rates · creating low-latency interrupt paths in the OS to prevent buffer underrun However, computer networks were still limited, and media was usually delivered over non-streaming channels, such as download of a digital file from a remote web server that was then saved to a local drive on the end users computer or as a digital file stored and played back from CD-ROMs.

与流主要的技术问题是：·有足够的 CPU 电源及巴士的带宽来支持创建低滞后时间的所需的数据率·中断 OS 为防止缓冲区不足中的路径但，计算机网络仍然有限，和媒体通常送非流信道，该等作为数字从远程 Web 服务器的最终用户计算机上的本地驱动器，然后保存文件的下载或作为一种数字文件存储和播放从 CD-ROM 回来。

To solve the problems in present hydraulic calculations of gas pipe network such as numerous data-inputting, unprecise output and a lack of hydraulic calculation methods to keep consistent with steady flow and non-steady flow in real working conditions of gas pipe network, in the paper the author has set up a mathematical model of heat transfer process of gas in pipes on the basis of thermodynamic basic theories and obtained more accurate calculation methods of gas storage quantity in long conveying pipes and urban pipe network of high pressure. This research achievement has been applied to real pipe network.

本文研究目的是解决目前燃气管网水力计算中存在的诸如输入数据繁琐、计算精度不高、缺乏符合实际燃气管网工况的稳定流及不稳定流管网水力计算方法等问题，试图根据热力学基本理论建立燃气在管道中传热过程数学模型，给出较为精确的长输管线及城市高压管网储气量的计算方法，并将研究成果应用于实际管网运行中。

Therefore it is inefficient and venturesome to modify the workflow instance.

针对这些不足，本文提出了一种面向工作流数据的、支持动态修改的工作流管理系统DOAWfMS。

The results showed that the current flowing between working electrode and auxiliary electrode were limited in a certain area by the apertural current limit sensor, and the noise disturbance and the IR drop caused by soil resistance were well eliminated by wavelet transform and Levenberg-Marquardt algorithm respectively.

结果表明，小孔限流型传感器具有明显的限流效果，小波变换和Levenberg-Marquardt算法能够有效消除充电曲线数据中的噪声干扰和土壤电阻影响。

To solve the problems of low efficiency and weak detecting ability in limited anomaly types of traditional network traffic detection method, this paper gave a new method that used seven indices to mine the netflow data from routers on the backstone network with applying the slipping window-based algorithm for detecting the bursts of the entropy stream in order to discover anomalies.

为提高异常流量发现的效率，解决传统流量分析方法效率较低、异常检测能力弱的问题，对骨干路由器的netflow流数据采用基于多个信息熵的联合指标并结合基于滑动窗口的熵流突发检测算法来实现网络异常的发现；并利用各指标熵值的相关度分析将指标分类，根据已知的异常类型对每一类指标的异常检测范围作出总结。

This work was first brought forward in SVC,and it can not only enhance error resilient capability of SVC bit-stream,but also maintain consistent bit-rates between input and output of the transcoder.4 This dissertation proposes discardable data adaptation in encoder.

该方法在SVC中首次提出，不仅能提高码流的容错能力，且能保证经过转码器的码流输入输出比特率的一致性。4提出SVC编码端的可丢数据自适应技术。

The problems existed in the P2P media streaming systems are analyzed. The control technology and data technology of the DONet is studied. An P2P live media streaming system PP-video is designed.

分析现有P2P流媒体系统存在的问题，以及研究DONet系统控制和数据传输两方面主要技术的基础上，设计并实现了一个基于DONet模型的P2P流媒体在线直播系统PP-Video。

Based on analysis of the current state of the flow pattern modeling abroad and at home, explains the meaning of the mathematical simulation of the flows in the valve.(2) Comparing flow simulation data of jet pump with its experimental one, the feasibility and reliability of FLUENT used for flow simulation are proved.(3) Based on the characteristic of valves, the fluid field analysis of specific ring-spray type flow-adjustable is finished. The valve structure is optimized to meet the need, which makes it have such advantages:(1)smaller vortex area and faintish vortex intensity, so the vibration of vortex is controlled effectively;(2)the pressure is distributed more equality, the transition area is larger.

论文的主要内容包括：(1)简述了阀门研究的现状与发展，在分析与总结国内外流体流动模拟研究的基础上，探讨开展阀门内水流运动数值模拟的意义；(2)对特定型号的射流泵进行了内部流场的数值模拟研究，并与实验数据相比较，验证了应用Fluent进行数值模拟的可行性和可靠性；(3)针对调流阀的特点，对特大口径环喷式流量调节阀进行流场计算，其设计指导思想如下： 1、控制旋涡，减小旋涡区，减小涡的强度； 2、控制压力分布，使阀体受力更均匀，改善局部应力状态，提高阀门使用的安全性； 3、最小绝对压力高于水的汽化压力，不产生汽蚀。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。