查询词典 recovery phase

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。

The investigation shows that the microstructure of ZAC27 alloy evolves as follows: after 1 day ageing,α phase,η phase and ε phase appear in the alloy, moreover, the amount of α phase,η phase and ε phase increase with the increasing of ageing time; after 10 d ageing, the β phase decomposes and vanishes completely in the alloy; after 50 d ageing, phases gather and form the coarser equilibrium microstructure which consists of near equiaxed, shot club-shaped α,η and ε phase.

过饱和ZAC27合金时效1 d后，组织中出现了大量的η相、α相和少量的ε相。

GROUP 2 showed that the time of MMC IIphase was longer than other groups (P. 01), while that of I phase^ III phase was normal; there were six patients without III phase, and three had antidromic conduction; GROUP 3 showed that the time of MMC I phase was longer than other groups (P. 01).while that of II phase ^ III phase was shorter; there were nine patients without III phase, and two had antidromic conduction.

FD肝郁气滞组表现为MMCⅡ相延长，Ⅰ相、Ⅲ相不延长；有6例无Ⅲ相出现，有3例出现逆向传导，Ⅲ相起始于十二指肠；脾胃虚弱组表现为Ⅰ相延长，Ⅱ相、Ⅲ相缩短；有9例无Ⅲ相出现，有2例出现逆向传导。

The observed partition coefficient between the feed phase and the membrane phase, the stripping phase and the membrane phase, mass transfer resistance of boundary layer in strip phase inside the hollow fibers, boundary layer in feed phase and the diffusion in the membrane phase are taken into account in the model equations.

该数学模型同时考虑了手性对映体的表观分配行为和料液相边界层、接收相边界层以及支撑液膜相的扩散阻力。

The observed partition coefficient between the feed phase and the membrane phase, the stripping phase and the membrane phase, mass transfer resistance of boundary layer in strip phase inside the hollow fibers, boundary layer in feed phase and mass transfer resistance of the membrane phase were taken into account in the model equations.

该数学模型同时考虑了手性对映体在料液相、接收相与液膜相间的分配行为和料液相边界层、接收相边界层以及支撑液膜相的扩散阻力。

The change of syconia number and the duration of phase B and phase D of different Ficus awkeotsang strains were compared. Results showed that the length of phase D of male syconia was about one month, while the length of phase B of female and male syconia was 2-3 months. This means that phase B and phase D could not overlap completely, resulting in the falling of syconia in phase B due to lack of wasps for pollination.

比较爱玉子不同品系雌、雄花序的B期与雄花序的D期花序数量变化及持续时间，结果表明：栽培爱玉子雄花序D期时长约1个月，而雌、雄花序的B期时长却是2~3个月，B、D期不能完全重叠，导致B期花序因没有小蜂传粉而脱落。

The products including: induction meter (single-phase and three-phase), electronic meter (single-phase and three-phase), Three phase multi-functions electronic meter, prepayment electronic meter (single-phase and three-phase) and so on, some detail specification can be adjusted according to the requirements of customer.

主要有机械式单，三相电能表，电子式单，三相多功能电能表，预付费电子单，三相电能表等，具体的技术参数可以按照客户的要求生产。

Frequency offset, convergence time, phase noise and hardware cost are the most important factors for algorithm selecting. First, the carrier recovery loop is divided into two parts, frequency recovery loop and phase recovery loop.

由于载波恢复需要捕获较大的频偏范围、较短的收敛时间、较小的相位噪声和较低的硬件实现成本，所以本文从这四个方面考虑算法的选择。

It can get the three-dimensional profile of the object surface effectively. Because of the cragginess of the three-dimensional surface when sine grating is projected the image of the sine grating is modulated and the modulated image is taken by a CCD camera with an angel compared to projecting direction. After the phase shift measuring method, the phase is gotten. Because the phase is calculated by the phase shift measuring ranges from –π to +π it isn't continuous. The phase unwrapping is necessary to recover the continuous phase about the object shape.

这种方法采用结构光照明，将正弦光栅图像投影到被测物体表面，用与投影方向成一定角度的CCD摄像机获取受物体表面面形调制的变形光栅像，根据数字相移算法计算出相位分布，由于从相移计算的相位被截断在反三角函数的主值范围内，因而是不连续的，必须通过相位展开恢复出连续相位分布，由相位－高度关系最终求出物体轮廓的三维数据信息。

The public administration of Singapore's development separate into tow period and five phase: the colony period and the independence period; the pre- colony phase(1819-1867), the phase of Crown Colony rule( 1867-1942), the post-war phase(1945-1955), the Labour Front Coalition government phase(1955-1959), and the PAP government phase (1959 to the present). It have become a world-famous, high- efficient, high- modern and mature public administration.

新加坡的公共行政体系经过殖民地时期和独立时期两个时期，包括前殖民阶段(1819—1867年)、直属殖民地统治阶段(1867—1942年)、战后阶段(1945—1955年)、劳动阵线联合政府阶段(1955—1959年)、人民行动党阶段(1959—至今)五个阶段的发展，已经发展成为一个世界称誉的高效率、高度现代化的完备的公共行政体系。

Objective:To explore the feasibility of laparoscopy in diagnosing and treating of abdominal diseases.

目的：探讨腹腔镜用以诊断腹部外科疾病及选择治疗方案的可行性。

The lifetime of nylon 1010 and nylon 1010/POSS composites decreased with increasing temperature.

热重-红外联用分析表明尼龙1010在氮气气氛下的降解产物主要为小分子的低聚物，POSS并不改变尼龙1010降解产物的组成。