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Finishing calculation of mean value, standard deviation, skewness, kurtosis of Beta distribution.(2) Fitting parameters of many kinds of typical distribution and using residual deviation to evaluate fitting precision.(3) Using Beta distribution as an agreed indication distribution applied to many kinds of practical photoelectric measurement distributions.(4) Deriving theory formula of Bayes point estimation about Beta distribution parameters and mean value and standard deviation on the condition of mean square error loss function and supposed the prior distribution is uniform distribution.(5) Generating MCMC sample from post distribution by the method of Gibbs sample algorithm. Calculating bayes point estimation from sample on the condition of mean square error loss function. Calculating confidence interval by an approximate method to complete interval estimation.

本文的主要工作有：(1)解决了Beta分布参数a和b的精确计算以及均值、标准差、偏度、峰度的计算问题；(2)拟合出10余种典型分布的Beta分布的两个参数，并且采用剩余标准差评价该Beta分布的拟合精度；(3)对多种典型的光学与光电测量系统的测量分布进行了Beta分布统示表示；(4)在假设先验分布为均匀分布前提下，得到参数a和b以及均值μ和标准差σ在均方误差损失函数下的贝叶斯点估计理论计算公式；(5)利用直接抽样的Gibbs抽样算法，从后验分布中产生MCMC样本，从样本直接计算均方误差损失函数下的贝叶斯点估计，并使用一种近似方法计算其置信区间，完成区间估计。

It pointed out the basic historic mission of the first generation of CPC people headed by Zedong Mao is the independence of the country and national liberation, to overthrow the "three big mountains "pressing on the heads of Chinese people and all reactionary forces to hinder Chinese social progress, and from this formed the mode of thinking with the main character of revolution; The basic historic mission of the second generation CPC people headed by Xiaoping Deng is to transform the rigid economic and political system of traditional socialism, from thinking theory, eliminate the bookishness and"Left"dogmatism which hindered economic development and social progress and spread seriously, and from this formed the mode of thinking with the main character of transformation; Then, the basic historic mission of the third generation CPC people headed by Zemin Jiang is, on the basis of the cause opened by the first and second generations CPC people, to open up the new situations of building the socialist cause with Chinese characteristics, in theory and practice, realize overall creation in all fields of life, and from this formed the mode of thinking with the main character of creation; The historic mission undertaken by the new central leading group headed by Jintao Hu is to completely realize the objective of well-off society, strengthen international competitive, the main point is economic development, the stress is in the countryside, and the difficult point lies in social development.

指出：以毛泽东为代表的第一代中国共产党人的基本历史使命是国家独立和民族解放，推翻压在中国人民头上的三座大山和一切阻碍中国社会前进的反动力量，并由此形成了以革命为主要特征的思维方式，以邓小平为代表的第二代中国共产党人的基本历史使命是变革传统社会主义的僵化的经济政治体制，在思想理论上革除阻碍经济发展和社会进步的严重泛滥的本本主义和"左"倾教条主义，并由此形成了以改革为主要特征的思维方式；那么，以江泽民为代表的第三代中国共产党人的基本历史使命，则是在第一代、第二代中国共产党人所开创的事业的基础上，开拓建设中国特色社会主义事业的新局面，在理论和实践上，在社会生活的所有领域实现全面创新，并由此形成了以创新为主要特征的思维方式；以胡锦涛为代表的新的中央领导集体所肩负的历史使命是要实现全面建设小康社会的目标，增强国际竞争力，要点是经济发展，重点在农村，而难点在社会发展方面。

In these portion,the article begins the study of tone sandhi from the point view of two-character phrases and three-character phrases,which is also the focus and difficult point as well.On the basis of substantial materials of Dingzhou dialect,the author elaborates its rules and principles of tone sandhi of the general phrases and those with light tones,and reiterative location.the author puts his views as follows: 1.The rules of tone sandhi of two- character phrase are simple and unitive. 2.The complex of the phrase with light tones lies in the combination of the first tone and light tone.In the case,there are two different pronunciations in Dingzhou dialect.The author guesses it is the coexist of ancient pronunciations and common spoken Chinese. 3.The tone sandhi of general three-character phrases on the basis of the rules of that of two- character phrases,using the grammar structure of the three-character phrases as the restricted conduction,which function jointly. 4.The rules of tone sandhi of three- character phrases with light tones are restricted only by that of the two- character phrases with light tones and thus are foreign to grammar structure. 5.The tone sandhi of the words with reiterative location has their own system.

这两章中，作者采用直接调查法，社会语言学方法分别从一般字组、含轻声字组和叠音词字组三个方面对定州方言连读变调进行详尽地描写，文章中既有对连读变调的共时性描写，也有对连读变调历时性推测，总的来讲笔者认为定州方言变调具有一定的系统性，主要表现在以下几个方面：两字组连读变调规律简单统一，含轻声字两字组内部规律较为复杂，但是具有很强的一致性；定州方言含轻声两字组变调的复杂性主要表现在阴平+轻声的组合中，在这种情况下，定州方言有两种读音方式，推测它是语音存古现象和普通话语音并存的结果；一般三字组连读变调以两字组连读变调规律为基础，以三字组的语法结构为制约条件，二者共同发生作用；轻声三字组变调规律只受轻声两字组变调规律的制约，与语法结构无关；叠音词的变调规律自成系统。

The paper gives a detailed introduction to the classification and mothed of image edge detection from the traditional point of view,that is,the robert operator based on the maximum gradient detection,the sobel operator,the prewitt operator,the canny orerator,the laplancan operator based on the detection of second derivative of the zero-crossing point and then log operator.The paper makes a summary and analysis to the principles and applications,advantages and disadvantages of each algorithms and operators. Especially the canny operator.

本文首先介绍了图像边缘检测在国内外的发展，图像边缘检测的重要性及意义，阐述了图像边缘检测的原理，从传统的角度详细介绍了的图像边缘检测的分类及方法，即基于检测梯度最大值的robert算子，sobel算子，prewitt算子，canny算子，基于检测二阶导数的零交叉点的laplacan算子及log算子，对各种算法和算子的原理及用法及优缺点做了总结和分析尤其是canny算子。

On the base of the right of subrogation in marine insurance, this paper will do the research from the point of view of action;on the base of existing stipulations and legal theories of the action of subrogation in marine insurance, maritime action and civil action, this paper will consult the foreign correlative theories;not only from the point of view of the legal theories, but also by consulting the cases and usual ways in judicature of our country, this paper will make the research more practical;this paper will also do the research by induction, organon and interests-comparing, etc.

本文将在海上保险代位求偿权制度的基础上，从诉讼角度展开较为系统的研究；在我国现有的海上保险代位求偿诉讼、海事诉讼以及民事诉讼的法律规定和法律理论的基础上，参考国外相关的法律理论，对海上保险代位求偿诉讼的法律问题进行较为系统的研究；不仅从理论的角度，还要参考我国司法实践中的相关案例和通常做法，使得对海上保险代位求偿诉讼的法律问题的研究更贴近实务，更具有实际操作性；运用归纳、推理的逻辑方法，采用利益比较等具体方法，对海上保险代位求偿诉讼的法律问题进行了较为全面的研究。

According to the characteristic that the definition point of the Q matrix of wave front is always located on the extremum point on the axis of the beam, a three-dimensional formula for the rectificative factor of phase in complex ray paraxial approximation is proposed, which calculates the rectificative factor of phase directly without considering the calculation of the main directions and curvatures and the rotation of the coordinates, thus simplifying the paraxial approximation calculation by the complex ray expansion method.

根据波前Q矩阵的定义点总位于波束轴上极值点的特点，提出了三维复射线近轴近似相位校正因子计算公式。该公式不用考虑主方向和主曲率的计算和坐标旋转，直接计算相位校正因子，从而简化了复射线展开法的近轴近似计算。

Environment radon is mainly from rock and soil in geological environment, but the research is not connected with geological environment now. On the basis of physical field, the theoretical distribution model of radon in soil and exchange model of earth—air are set up by using Fick diffusion law and Dacy law, and then the research of environment radon is linked with geological environment. This paper described how the evry parameter of the theoretical model influence the radon concentration in air. The results of research indicat that molecule diffusion of radon is different from it's eddy form. Under the condition of surface radon source, the model experiment is used to study the transportation and distribution of radon in medium. The data of experiment show the relationship between radon and depth can be described by exponent. If the radioelement is well—distributtion, the concentration of radon in different depth or in different point at the same depth change with time, but the accumulated exhalation amount of radon at different point on the surface of model are close in relative long time. The author studied the exchange of radon between mediums and verified the theoretical models too.

环境氡主要来自岩石、土壤，而目前环境氡研究中与地质环境结合很少，为此作者以物理场为基础，运用气体运移的费克扩散定律和达西定律，建立起壤中氡浓度分布与大地—大气间氡交换理论模型，首次在理论上将环境氡与地质环境结合起来；论文中从理论上讨论了模型中各参数对空气中氡浓度的影响，发现空气中氡运移的分子扩散方式和湍流扩散方式存在明显差异；通过面状氡源条件下的氡运移模型实验，研究了介质中氡的运移与分布，实验数据表明氡浓度随深度的变化规律可用指数函数描述，在放射性元素分布均匀的条件下，介质中不同深度和同一深度不同点的氡浓度随时间而变，但介质表面不同点在较长时间内向空气中累计释放的氡的量是相近的；同时研究了不同介质间氡的交换，并验证了所建立的理论模型；运用理论模型预测青岛市城区壤中氡浓度、江西临川一住宅区空气中氡浓度及江西二个测区的区域空气中氡浓度分布，取得了较好的效果。

The graphical model for point pattern matching in JT algorithm is proved sensitive to the outliers in template point-set recently. To efficiently solve the problem, this paper sampled on the point in the separator, and derived the relationship between the times of the sampling and the ratio of the outliers.

为解决概率图模型匹配算法对模板点集中的外点敏感的问题，对隔离子进行了采样，并推导出采样次数和模板点集中的外点比例关系，以保证隔离子中的点能最大概率地为内点，使得推理算法中每个点的信息能得到传递。

Based on the example of turbine reverse engineering , the general procedure that can be used to translate the physical object into CAD datum by Surfacer software is determined in this paper1 By going deep into the vector of point-cloud , it's parametrization can be gained by adopting the precept of accumulating chordal parametrization1 According to the principle of const ructing curve using the least square method , the high quality-curve can be gained by modifying curve's parameter1 This paper also empha2sizes on some methods about processing point-cloud , const ructing curve and const ructing surface1 And it can provide several methods to const ruct high quality2CAD model for mould machining1

此栏目为免费论文，可自行复制获取，如需要其他完整论文，可点击论文范文查找摘要本文就涡轮反求造型的实例，采用Surfacer 软件规划出由实物转化为工程CAD 资料的一般流程。在深入分析点云数据的矢量方向基础上，采用积累弦长参数化方案实现点云的参数化；根据最小二乘法曲线拟合原理，修改曲线参数获得高品质曲线；并重点论述了点云处理、曲线生成、建构曲面的方法，为模具加工提供了建构高品质CAD 模型的有效途径。

It is different with the manual exhaust Slurry pumps valve is not required to run the wind man, it must be installed on the location of gas pipeline set point, the so-called water gas gathering point is the top horizontal tube of the highest point, this horizontal pipe 3 ‰ gradient requirements, does not allow for local conditions such as depression and bending, when the air into the valve, the valve automatically opens, the air removed, the water level rose, it will automatically close the valve, hot water can not spill, from a virtually eliminating Manual exhaust is not timely, easy to form a "vapor lock" effect caused by hot water heating effects and huge loss of the state.

它与手动排气闸阀不同点是不需要人为跑风，它安装的位置一定要在管路集气点上，所谓集气点就是顶层供水横管的最高点处，对此横管有3‰倾斜度要求，不允许出现局部凹陷和弯曲等情况，当空气进入阀体后，阀门会自动开启，调节阀空气排除后水位上升，它会自动关阀，热水不能外溢，从根本上消除了手动排气不及时，易形成"气阻"影响供热效果和造成热水大量流失的弊端。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷