Meanwhile, it could be seen that there does not exist a confidence interval with width less than 0.5 because of the property of Poisson distribution. Based on these conditions, the author mainly carried out research into two aspects of this problem as follows. Firstly, by numerical and theoretical analysis, the author compares some existent confidence intervals, for example,"exact" confidence interval, Wald confidence interval and Bayesian confidence interval, and finds some deficiencies points of the confidence intervals, whose modification version has been proposed .Also, several better confidence intervals such asare also presented .Secondly, for given confidence coefficient and interval width, the author constructs a class of asymptotical two-stage interval estimate procedures. At the same time, under varies restriction of confidence coefflcientent interval width, the optional sample size of the first stage has been computed by numerical computation. The numerical computation shows that the method considered in this dissertation have good properties and applied value.

同時91久久久老熟女，由于Poisson分布的特性日本巨乳中文字幕在线，我們知道不存在其參數區(qū)間長度小于0.5的置信區(qū)間91手机视频国产精品自拍，基于這些情況国产免费一级特黄真人视频网站，我們主要展開了以下兩個方面的研究：一是利用數值計算分析與理論分析的方法對現有的若干置信區(qū)間如"精確"置信區(qū)間，Wald置信區(qū)間，Bayes置信區(qū)間等進行分析比較亚洲群体性爱视频，發(fā)現了一些缺陷人人干,人人摸人人草，針對這些缺陷，我們進行適當的修正欧美裸体一级视频，并得到幾種性質較好的置信區(qū)間如：修正大樣本區(qū)間Jeffreys原則下置信區(qū)間二是針對已給定的置信系數與區(qū)間長度91在线九色，我們提出了一種漸近的兩階段區(qū)間估計程序，并利用數值計算的方法亚洲无视频区，在各種置信系數與區(qū)間長度限定下好爽好大好紧别拔出来视频，算出了最優(yōu)的第一階段觀測次數，大量數據表明超碰欧美图片zxxxx，本文考慮的方法性態(tài)良好在线高清免费不卡无码黄片，具有應用價值。

This paper studied a filtering high order numerical method for one dimension constant coefficient hy2 perbolic function. The stability and error analysis show the efficiency of this method. Numerical examples are also given to verify the analysis results.

摘 要 考慮一維常系數雙曲型方程的高階數值解法天天日天天干天天天添，引進了一種穩(wěn)定性過濾算子FN 黄页网站免费49vvcom，最后從理論和數值實驗上分析了該過濾算子對數值解穩(wěn)定性和精度的影響。

This thesis is divided into six parts. The first chapter is preface, the current status of research in the inverse problems for parabolic partial differential equations is reported; the second chapter is "regularization methods for numerical differentiation and their applications ", in this chapter we investigate many regularization methods from a viewpoint of regularization theory and algorithm, some applications in the inverse problems for parabolic partial differential equations are given; the third chapter is "spectral regularization methods". Based on Fourier analysis, within the framework of regularization theory, we apply the spectral methods to some ill-posed problems. Many numerical experiments are done in order to show the validity of the methods; the fourth chapter is devoted to wavelet dual least squares method and a revised wavelet method; in the fifth chapter,we combine finite difference method with method of lines and apply it to the backward heat conduction problem in time; in the sixth chapter "identification problems for unknown source ", the essence and the degree of two problems related to source identification are pointed out, at the same time, some numerical methods are reported.

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The velocity distribution of jetting penetrator charge under different initiation ways was s tudied by theoretical analysis. The numerical simulation results coincide with the theoretical analysis, a practical method of numerical simulation and material model parameters were obtained.

并通過理論分析研究了不同起爆方式下所形成的桿式射流的速度分布欧美黄色性交网站，數值模擬結果與理論分析吻合較好97国产一区二区精品久久呦，得到了一套實用的數值模擬方法及材料模型參數。

Do some tentative analysis of the tunnel lining by numerical manifold method. the idea is given that combining regular mesh with finite element mesh and using low-order and high-order cover displacement function in numerical manifold method, it make preprocess and program analysis, precision and efficiency for coordination.

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With the advantage of being highly objective and efficient,the computer-aided analysis system for synaptic numerical density based on the Disector technique,Disector Countor 1.0,would be the developmental direction for synaptic numerical density analysis.

我們利用本文探討應用Disector技術測量突觸數密度的可行性和具體步驟，以及基于該技術的突觸數密度計算機輔助分析的原理和過程。

With the advantage of being highly objective and efficient,the computer-aided analysis system for synaptic numerical density based on the Disector technique,Disector Countor 1.0,would be the developmental direction for synaptic numerical density analysis.

我們開發(fā)的基于Disector技術的突觸的數密度計算機輔助分析系統——Disector Countor 1.098K免费毛片，具備客觀操逼公司、高效等優(yōu)點，是突觸數目定量分析的發(fā)展方向一级女人自慰毛片三十分钟。

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It is available to carry out numerical simulation and fluid dynamic analysis further. Based on Frozen-Rotor Approach and Rotor-Stator Approach, the numerical simulation was carried out in the centrifugal pump and the numerical results showed that the flow in the impeller and volute of centrifugal pump is periodically unsteady. Due to the interaction between impeller and volute the flow is characterized by pressure fluctuations and it is the strongest at impeller outlet and at the vicinity of the tongue. The unsteady pressure fluctuations are also one of the most important reasons to induce vibration and noise. Secondly, the flow field of the volute is characteristic of the vortex flow, and the vortex flow presents very complicated developing process which is creating, increasing and dissipating every now and then. All these lead to very large flow loss in the volute.

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For the four types of possible motions of caisson breakwaters, a dynamic analysis model of caisson breakwaters under breaking wave impact is founded and a numerical method is presented, which can be used to simulate the motions of caisson breakwaters. A small scale model test is designed, which can be used to examine the dynamic analysis model and numerical method.

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