查询词典 mathematical analysis

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。

This module contains: the analysis of the total number of overdraft; the analysis of overdraft card holder%26rsquo;s character; the analysis of the relationship between the total number of overdraft and card holder%26rsquo;s age; the analysis of the rate of the frozen ,lost, stop payment; the credit evaluation of the card holder and the cautioner. Through these analysis, some facilities may be improved , the risk may become lower, improve the faithfulness of the customers and keep the long time business relationship with them.

更着重介绍了对%26ldquo；风险控制%26rdquo；模块的设计与实现，此模块包括：透支总量的对比分析；透支持卡人的特征分析；透支持卡人的年龄层次分析；冻结/止付/挂失卡的比例；持卡人、担保人的信用评估等，经过对这些分析可以加以改进各项设事、减少风险度、有效地提高客户忠诚度，并与之保持长期的和有益的业务关系。

Item analysis, internal consistency analysis, exploratory factor analysis and confirmatory factor analysis were used in data analysis.

研究中使用项目分析、内部一致性分析、探索性因素分析以及验证性因素分析等统计方式进行分析。

The statistical method includes factor analysis, cluster analysis, corespondent analysis, regression analysis; the predictive method includes characteristic analysis Monte Carlo′s analogy and logic information methods.

统计方法包括因子分析、聚类分析、对应分析、回归分析；预测方法有特征分析、蒙特卡罗模拟、逻辑信息法等

The thesis adopts phantom tests with ROC (Receiver operating characteristic) curve analysis to compare cross correlation analysis method with coherence analysis method on Bruker MedSpec 3T system and according to the advantage of coherence analysis method to analysis conventional fMRI and resting-state fMRI.

论文中先采用仿体测试搭配ROC(Receiver operating characteristic)曲线分析比较相关系数法与同调性分析法在Bruker MedSpec 3T system上的表现再根据同调性分析法的优点分析功能性的影像与平静状态功能性影像。

RESULTS: All the selected items were analyzed by the different statistical methods, including significance grade, discrete tendency, principal component analysis and factor analysis, cluster analysis, stepwise regression analysis, discriminatory analysis and Cronbach's alpha. Three domains, 11 facets and 50 items made up the general structure of CH-QOL.

结果：应用专家重要性评分法、离散趋势法、主成分分析法与因子分析法、聚类分析法、逐步回归分析法、判别分析法及克朗巴赫系数法等统计分析方法，对不同分析结果选中的条目进行综合考虑，最后形成了以3大领域、11个方面和50个条目为结构的最终中华生存质量量表。

In this paper,the development of non-linear analysis approach,a more detailed presentation of the finite element software ADINA and ANSYS in the reinforced concrete structure,step by step analysis of a reinforced concrete structure of the finite element analysis techniques and the use of commercial finite element analysis software for concrete the structure of the two most important components-beams and columns of the comparative study of performance analysis.

本文从非线性分析的发展入手，较为详尽的介绍了有限元软件ADINA和ANSYS在钢筋混凝土结构中的应用，逐步分析了钢筋混凝土结构的有限元分析技术，并且利用商业有限元分析软件对混凝土结构中最重要的两类构件——梁和柱的性能进行了对比研究分析。

A detailed analysis of the main circuit introduction, control method and working principle of the direct-drive wind energy conversion system are given to introduce the two important parts a of this paper: First part is the control method of the multiple boost convertor, the important instantaneous current control method of this paper is given through the analysis of the main circuit structure, control method and working principle. Then a steady-state analysis for low-frequency, a high-frequency component analysis, and a closed-loop tracking performance analysis for dynamic response are provided to analyze the method proposed; And the second part is the control method of invertor.

在系统变流器整体结构分析的基础上，引出本文重点研究的两个变流环节的控制：第一部分是系统升压斩波器的控制，通过分析相关主电路结构、原理，建立了数学模型，引出本文重点研究的瞬时值控制策略的概念和具体实现，并对升压斩波器的瞬时值控制策略进行了详细的高频、低频模型分析和稳态、动态性能分析；第二部分是系统并网逆变器的控制，通过对逆变器主电路的数学建模和控制要求分析，研究了并网逆变器的瞬时值控制策略，包括电感电流控制内环和直流电压控制外环的具体设计和实现方法。

We reviewed the progress in soil analysis for readily available nitrogen, phosphorus and potassium made in the last 20 years, such as the application of salicylic acid and test strip for nitrate analysis, Mason Jar for nitrogen analysis , malachite green for phosphorus analysis, and flow analysis for different element based on different reactions.

从文献检索结果和国内土壤氮、磷和钾测定的实际来看，我国在土壤氮、磷和钾测定方法研究、测定仪器的开发与生产方面与国外仍有较大差距，土壤养分测定工作的差距主要在以下几个方面：(1)研究人员少。

The methods of data analysis include descriptive statistic, reliability analysis, factor analysis, multivariate analysis of variance, and regression analysis.

资料分析方法包括叙述性统计、信度分析、因素分析、多变量变异数分析与回归分析。

Panorama Many people are dancing in a large sitting room.

在一个大客厅里，许多人在跳舞。

We fully understand how a microwave oven cooks food, it is first necessary to talk ...

我们充分理解一个微波炉煮的食物，这是首先要谈。。。