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value analysis相关的网络例句

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This paper studies a class of cubic system with planar polynomial.We use the qualitative theory of ordinary differential equations method of analysis, reached the following conclusions of four parts: First, we analyze the quality of all critical points of the system,and draw the conditions of existence of singular integrals for the system , in front based on the analysis, using Pioncare form series method to calculate the focal value of o(0,0). Finally, we also study the behavior of critical points at infinity.

中文摘要:本文研究了一类平面三次多项式系统,我们采用常微分方程的定性理论的分析方法,得出如下四个部分结论:第一部分,分析系统所有奇点的性态,并得出系统存在奇异积分直线的条件;在前面分析的基础上,用Pioncare形式级数法,计算出了系统在奇点o(0,0)的三个焦点量;最后,研究了系统无穷远奇点的性态。

Brief the; of commonly used method that narrated research to sort solid coupling problem discussed iterative method of dry mode law, across and LS-DYNA finite yuan of software analysis law, the theoretical calculation that is problem of coupling drifting solid offerred new method and train of thought, the analysis of problem of convection solid coupling has fair referenced value.

简要叙述了探究流固耦合新问题的常用方法;讨论了干模态法、交叉迭代法以及LS-DYNA有限元软件分析法,为流固耦合新问题的理论计算提供了新的方法和思路,对流固耦合新问题的分析有一定的参考价值。

In this paper the spline regressive analysis is used for the information processing of multi-gases sensor signals with the electronic nose system. The authors have established a spline regressive model of the freshness degree of beef based on the beef sample, and have done regressive analysis to the model, which has given the forecast value and the estimative interval of the degree of the freshness of the beef.

将样条回归分析方法用於电子鼻系统中多气体感测器信号的资讯处理,针对牛肉样本建立了牛肉新鲜度样条回归模型,并对该模型进行了回归分析给出了牛肉新鲜预报值和估计区间。

The thesis analyzed chiefly on on law of physical sign disposition of deficiency of spleen-QI in pedo-eczema.Using pykno-analysis, data has been analyzed. We got 23 physical signs of statistical significance,and had non-conditional logistic regression analysis to them. We got 11 physical signs of great value in pedo-eczema diagnosis,including dim-coloured anthema, athrepsy body, weak pulse, diarrhea , etiolate complexion,light texture of tongue,soft skin, house-wife hand,dim qichi, fissured tongue, bluish tendon in shangen etal.And contrast with former diagnostic criteria of deficiency of spleen-QI published by TCM administration bureau, unearch part of the unnoticed physical signs.

论文着重分析了小儿湿疹脾气虚证的体征分布规律,采用频数分析方法,对数据进行统计学分析,分析出其中具有统计学意义的23项体征,并对其进行非条件性logistic回归分析,得出对小儿湿疹诊断具有重要价值的疹色暗淡,形体消瘦,脉无力,便溏,面色萎黄,舌质淡,尺肤松软,手掌纹理增多,气池暗,裂纹舌,山根青筋等11项体征,并与以往国家局的脾气虚证证候诊断标准对照,从而发掘出部分以往未被重视的体征。

There are totally five chapters in the paper. Chapter 1 is the introduc-tion,and extreme value theory and methods and modelling for returns fat tails are introduced systematically in Chapter 2.This chapter also presents mean excess function and de Haan's moment estimate to decide on the reasonable exceedance threshold. Chapter 3 describes in detail non-linear time series mod-els such as GARCH models and the corresponding statistical inferences,and it also gives modelling and statistical analysis methods for returns series. Chap-ter 4 uses the models in Chapter 2 to analyzes the daily returns for Shanghai complex index and Shenzhen complex index in the Shanghai and Shenzhen stock markets. Chapter 5 applies the models in Chapter 3 to the volatility analysis of the two stock indices returns.

论文总共五章:第一章是引言部分;第二章系统介绍了极值理论方法和收益率厚尾的建模方法,给出了平均剩余函数法和de Haan矩估计相结合的方法确定合理的超越门限;第三章详细论述了非线性时间序列模型GARCH类模型及其统计推断,并且给出了收益率时间序列波动的建模和统计分析方法;第四章利用第二章的模型对国内沪深两市大盘指数上证综指和深证综指日收益率数据分布的厚尾进行了实证分析;第五章将第三章的模型应用到两个股指日收益率时间序列的波动分析。

The non-stationary index of automobiles\' supporting force response under side wind is analyzed, which confirms the reasonableness of stationary assumption in dynamic reliability analysis.Thirdly, joint distribution of wind speed and wind direction is established based on the extensive extreme value distribution, which is used for reliability analysis of bridge traffic safety.

其次提供了Fourier变换识别抖振响应频谱失真的实例,采用Hilbert-Huang变换分析桥梁抖振响应的时频特性,从结构动力学角度探讨了响应非平稳性的原因,从风工程的角度探讨HHT变换分量的物理意义,并分析侧风作用下桥上汽车支撑力响应的非平稳指标,为动力可靠度分析中平稳性假定的合理性提供必要的论证。

Through the analysis, this paper established a mathematical model for an early-warning satellite to forewarn the TBM trajectory. The model comprised locating model of TBM coordinates. Based on the analysis of accuracy of the model, a conclusion which has certain academic meanings and engineering value is reached.

通过分析研究,建立了单颗预警卫星对战术弹道导弹预警的数学模型,主要包括了用预警卫星探测信息确定TBM坐标的模型,并对TBM弹道参数的精度进行了分析,得出了具有一定理论意义和工程应用价值的结论。

For deformation monitoring in dam, simultaneously survey must be taken to physical quantity as well as the distortion value, then functional relation between them can be established by means of statistical regression analysis method that is called regression analysis method.

对大坝进行变形监测,必须同时测量产生变形的各种物理量以及变形的结果,结合统计回归分析的方法建立两者之间的函数关系,这就叫做回归分析方法。

In this paper I introduce basic theory of Bayes' method and business risk. I give out the thought of essential solving steps, then combine with an instance, as a spinning mill which would produce two different manufactures, flower woolen cloth and gabardine. I adopt Bayes' expectation of loss method to analysis the two manufactures producing, then made a decision, figure out expectation value of the two schemes. Then select a plan which get best profit or least loss. I compute other indexes, for example, probabilities under different stations, tenderness analysis, risk degree of different plans, then compare those indexes, we make a decision.

在文中详细的介绍了贝叶斯方法的基础理论和企业风险的有关理论,给出了贝叶斯估计方法的基本解题思路和步骤,再结合具体实例,对某纺织厂公司生产两种产品,花呢和华达呢具体生产的决策问题采用贝叶斯期望损益分析法,计算出两种方案的期望值,选取收益最大或损失最小的决策方案为最优决策方案,在不同的自然状态下,再计算其他的指标,例如敏感度分析,风险度。

This paper analyze and study the influence of the superimposition in depth based on the previous achievements and combined with the theoretical qualitative analysis and project instances. The main contents as follow:Chapter 1: Indicate the significance and objective of this paper, review the previous achievements of the transient process and superimposition, and then present the study purpose of this paper.Chapter 2: combined with the physic knowledge of the fluctuation and the superimposition, Indicate the physical essences and the influence of the superimposition phenomena that exist in the diversion pipe system, and take one hydraulic turbine owning only one diversion tunnel and two hydraulic turbines sharing one tailrace conduit for instance to study out the numerical calculation superimpose operations.Chapter 3: From the calculation theory of the parameter of the guaranty calculation of regulation of the hydro-turbine, qualitative analyze the influence of the superimposition on them and the superpose time, combined with some project instances, get the numerical value of the influence of the superimposition and the superpose time.Chapter 4: Based on the previous achievements of the calculation and theoretical analysis of the surge-chamber ground swell, analyze the influence of the superimposition on it and the superpose time.

本文在前人研究成果的基础上,结合理论定性分析及工程实例,对波动叠加带来的影响进行深入分析研究,其主要内容如下:第1章,指出本文研究的意义和目的,回顾前人对水电站过渡过程及波动叠加方面的有关研究成果,在此基础上提出本文的研究内容;第2章,结合物理学中有关振动与波动叠加方面的有关知识,阐述水电站引水发电系统中存在的波动现象的实质及其影响,并以两机一洞和一机一洞具有上游调压室或下游调压室的水电站拟定其数值计算叠加工况;第3章,从机组调保参数的理论出发,定性的分析波动叠加对机组调保参数的不利影响及叠加时间,结合几个工程实例,得到波动叠加带来的影响大小及叠加时间;第4章,在前人对调压室涌浪进行计算和理论分析的基础上,分析波动叠加对调压室涌浪的影响及其叠加时间。

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