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Due to the complexity of the cell jitter, the NonSynchronous Tining Recovery methods are currently not mature With the emphasis being given to the Class A CBR traffic, this paper analyzes the performance of the queueing delay and cell jitter at the source node and intermediate nodes, and discusses the Source Timing Recovery at the destination node in ATM networks Firstly, this paper presents a description of the cell jitter of CBR traffic, and gives the definitions of two kinds of cell jitter regarding the Source Timing Recovery for CBR traffic Then, by using exact mathematical models and analysis methods, this paper analyzes the impact of the factors, such as the capacity of the queueing buffer, the randomness, the deterministic nature and the correlation in cell arrivals of the background traffic sources, on the queueing delay and cell jitter performance of the CBR traffic through Statistical Multiplexitng To obtain an insight into the power spectral distribution and look for better schemes for the depression and filtering of the cell jitter, within the analyses we succeed deriving the power spectrum of the cell jitter for CBR traffic Hence, not only the power spectral distribution of the cell jitter can in the frequency domain be qualitatively understood, but also can the rms (root-meansquare) value of the cell jitter be quantitatively obtained so as to more accurately measure the amplitude of the jitter In the end-to-end performance analysis of the queueing delay and cell jitter, we propose a kind of quasi-periodic cell stream model to characterize the jittered CBR traffic, and present an initial queueing analysis of the CBR traffic following such a model at a generic intermediate node Additionally, we briefly discuss the buildout/playout and Source Timing Recovery functions of the destination node Finally, regarding the Source Timing Recovery of CBR traffic, this paper systematically discusses several important principles of the cell jitter filtering and depression reported in the literature, introduces several implementation schemes of the Source Timing Recovery e.

由于信元抖动的复杂性，非同步定时恢复方法目前还很不成熟。本文针对A类CBR业务流在ATM网络源节点和中间节点的排队时延和信元抖动性能，以及在目的节点的源定时恢复问题作了较为全面的研究。首先，文中描述了CBR业务流的信元抖动，并具体地给出了两种与CBR业务源定时恢复有关的信元抖动的定义。然后，采用了精确的数学模型和分析方法，有针对性地分析了业务背景中信元到达的纯随机性、确定性和相关性以及排队缓存器容量等因素对CBR业务流经过统计复用后的排队时延和信元抖动性能的影响。为了了解信元抖动的功率频谱分布和寻求更好的抑制和滤除抖动的方法，在性能分析中，我们成功地完成了CBR业务流信元抖动的功率谱分析，使得不但可以从频域定性地认识信元抖动的能量分布特性，而且还可以定量地求出信元抖动的均方根值(rms：root-mean-square)，以更为准确地衡量抖动的大小。在CBR业务流的多节点端-端排队时延和信元抖动性能分析中，我们提出了一种准周期性(quasi-periodic)信元流模型来描述感染了信元抖动的CBR业务流，并基于这一模型进行了CBR业务流中间节点的初步排队分析。

"Groups of fifties and hundreds may be seen in different sections of the square,with banjos,tom-toms,violins,jawbones,triangles,and various other instruments from which harsh or dulcet sounds may be extracted...."

&50到上百人群在广场的不同位置，带着班究琴、手鼓、小提琴、话筒、三角铁以及各种不同的其它乐器，发出刺耳或优美的声音。&

The results indicated that there were significant relationship between infection and the follow items: having snacks; sucking fingers; size of house; ways of cleaning house; place of ac-tivities; parent's cognizing that anus is the po-lluted source of eggs; recognition of the cause-and-effect relationship between eating in the bedroom and being reinfected with Enterobius; recognition of preventing reinfection of Enter-obius by taking a shower; and educational black-ground of father.

以卡方检定(Chi-square test)及相关系数分析结果显示，与高雄县大竂乡学龄前儿童蛲虫感染有显著相关的因素有：吃零食习惯、咬手指习惯、住屋之室内大小、打扫方式及儿童主要活动空间、家长对於肛门口是蛲虫卵污染来源，在床上或卧室吃东西与蛲虫重覆感染有关及淋浴可预防蛲虫重覆感染的三项认知，及父亲教育程度。

They gathered in large open square, with small basins of water in their hands.

他们聚集在一个露天大广场上，手里拿着一盆盆的水。

Light tones of blue .an academic cap topped by a flat square with a tassel.

顶部有一个带绶带的四边形帽顶的学术性的帽子。

An academic cap topped by a flat square with a tassel.

顶部有一个带绶带的四边形帽顶的学术性的帽子。

It attracts thousands of customers worldwide mainly for its unique combination of square with the brilliance of a brilliant cut.

它吸引了成千上万的全球客户，主要是其独特的广场有辉煌灿烂的削减。

A try square with an adjustable sliding head.

有一个可以调节的滑行顶点的检验角尺。

The original patent specified a booth made of wood, four or five feet square, with a domed and ventilated roof and a strong door.

首创电话亭的专利人将亭子设计为木头制成，4至5平米大小，带通风孔的拱顶，一扇坚固的门。

"There will not be a dramatic meeting of heads of state in Red Square, with hugs and kisses, exchange of flags, and all will be well," he said.

我并不是替他们说话。这是一个非常重要的问题，我认为需要美国和俄罗斯人之间的密切合作。

If you are unfortunate enough to the lovelorn, please tell me, I will help you out, really, please contact me!

如果你不幸失恋了，请告诉我，我会帮助你摆脱困境，真的，请联系我啦！

China's plan to cut energy intensity by 20 percent and pollutant discharges by 10 percent between 2006 and 2010 is a case in point.

中国计划在2006年到2010间降低20%的能源强度和减少10%的主要污染物排放，就是一个这样的例子。