延时

The th eoretical analysis of 3PRK was conducted and the functions of near zero group delay filter, which is the pivotal c omponent during the modulation and demodulation were discussed.

对3PRK的调制方式进行了理论分析，并对关键部件———近似零群时延滤波器进行了探讨。

3PRK ; ultra wideband ; zero group delay ; abrupt phase change

3PRK ；超宽带；零群时延；相位突变

Based on the deep foundation pit project of tunnel in Nanjing metro west extending line, the supporting methods of the bored pile biting into deep mixing pile in soft soil are discussed. The key construction techniques and monitoring results for the supporting form in watered and soft soil bed are expounded. The ability of resisting seepage must be considered when insertion depth of supporting structure is designed, which may also prevent the skirting from losing its stability.

以南京地铁西延线区间隧道的深基坑工程为背景，对软土层条件下的钻孔桩咬合深搅桩的支护方法展开探讨和研究，著重阐述含水软土层中该围护型式的关键施工技术和监测结果，指出在设计围护结构插入深度时必须考虑抵抗渗流破坏的能力，同时安全的插入深度也是防止维护结构&踢脚&失稳的保证。

Through measuring round trip time and packet loss rate, every video receiver estimates independently TCP friendly available bandwidth of its upstream virtual link, and determines dynamicly its subscribed video quality.

通过监测往返时延和丢包率，每个视频接收端独立地估计其上游虚链路的TCP友好可用带宽，从而动态决定其订阅视频的质量。

The method to configure RED parameters based on network properties is also presented. Simulations show that the modified Random Early Detection algorithm really performs better than the original Random Early Detection algorithm and can work for a much wider range of traffic. Finally, whether the assured service mechanisms i. e. an edge router tags every arriving packet of a TCP flow based service profile and core router drops packets differently at congestion using active queue management scheme is possible to provide a throughput consistent with target rate, is investigated under different network scenarios. Different factors including target rate tagged algorithm, RIO algorithm and TCP congestion control mechanism how to affect the throughput of an assured service TCP flow are examined. Based on a fluid model. we then derive a model of an assured service TCP flow, which is the function of round trip delay, packet loss rate and token bucket parameters. Based on this model, we observe that in some cases it is possible to regulate the token bucket parameters to gain a consistent throughput with the target rate, while in other cases there exist ranges of values of the achieved rate for which the token parameters have no influence. With the latter, some modified TCP congestion control mechanisms to assure TCP throughput are proposed.

最后，在区别服务网络结构内，研究了当前提出的一种边缘路由器根据服务合同标记、分类数据包，结合内部路由器采用主动队列缓冲管理机制区别处理数据包的确信服务机制是否可在不同网络情况下使TCP连接获得同目标速率相一致的、公平的吞吐量问题；指出影响TCP连接获得同目标速率相一致吞吐量的主要因素是目标速率大小、标记算法参数和TCP连接的拥塞控制算法；对此，基于流模型假设，首次推导出一个以端到端时延、数据包丢失率、漏桶参数为变量的确信服务TCP连接吞吐量模型；利用这个模型进行分析，得到主要结论是在一些情况下可通过设置合适的漏桶参数得到同目标速率更一致的吞吐量，而在另一些网络情况下不管如何设置漏桶参数都不能使TCP连接获得同目标速率一致的吞叶量；对于后一些情况，还初步讨论了改进TCP拥塞控制算法来改善TCP连接性能的方法。

As to different types of network transmission delay and packet loss, it obtains the stability conditions for CNS.

针对网络传输时延、信息丢失等不同情况，分析和得到控制网络系统的稳定性条件。3。

The scheme was a tradeoff between transmission delay and efficiency.

该方案是传输时延和传输效率的优化折中。

One stores multi-data and the other stores gene-data temporarily.Adjusted the sequence of replay based on switch ratio n,which meaned,send n multi-data packages and one gene-data package.

以减少实时数据的时延为目的，同时兼顾稳定性和公平性，提出了按照实时性对数据包进行区分队列管理，按照动态转发比率n进行调度发送的策略。n的数值可以根据实际应用采用动态自适应的方式进行设置。

In the event of any breach of the duties set out in Clause 41 above, unless the Underwriters agree to the contrary in writing , they will be discharged from liability under this insurance as from the date of the breach provided that if the Vessel is at sea at such date the Underwriters discharge from liability is deferred until arrival at her next port

412该船级社提出的有关船舶适航性或维持其适航条件的任何建议，要求或限制，应在该船级社要求的日期前执行42 倘若发生上述第41款规定的义务的任何违反，除非保险人另行书面同意，保险人得自违反之日起解除根据本保险的责任，但若当时保险船舶在海上，保险人延至其抵达下一港口时解除责任。

In the applications which are sensitive to resource and have low requirement in delay, the serial implementation of multiplication, division and square root operations could be applied broadly, which could barter processing time for resource.

在资源敏感而计算时延要求较低的应用中，以处理时间换取资源的串行运算方法具有广泛的应用价值。

Finally, according to market conditions and market products this article paper analyzes the trends in the development of camera technology, and designs a color night vision camera.

最后根据市场情况和市面上产品的情况分析了摄像机技术的发展趋势，并设计了一款彩色夜视摄像机。

Only person height weeds and the fierce looks stone idles were there.

只有半人深的荒草和龇牙咧嘴的神像。