查询词典 sampling methods

The thesis introduces the basic thoughts and contents of the robust statistics first, then applied the robust statistical methods to the analyzing of the residents' income and expenditure data of Tianjin City on this foundation, and then makes contrast with the traditional statistical methods, thus embodies the advantage of the robust statistical methods sensitively when the actual data doesn't obey the theoretical assumptions.

本文首先介绍稳健统计学的基本思想及其内容，在此基础上还将运用稳健统计方法对天津市居民收入和支出数据进行系统而全面的实证分析，并与传统的统计方法进行对比，从而从感性的角度来体现稳健统计方法在实际数据并不服从理论假定时所具有的不可比拟的优势。

The full text is total to is divided into four chapter:Chapter 1, the relevant concept of the listed company results evaluation, that is the other the theories foundation of the chapter, and do the foul to the textual evaluation angle settle;Chapter 2, the results evaluation index sign and the index sign system, the original index sign system of comprehensive evaluation of information formation that that choice listed company publish, and introduced the in common use index sign to sieve to endow with the method of the power with index sign;Chapter 3, the comprehensive results evaluation method, this is the foundation that carries on chapter 4, that carry on theories in chapter 2 fusion, became two kinds of comprehensive evaluation methods, and carried on the des cription to the operation step of a method;Chapter 4, the substantial evidence is analytical, this is the point of the full text, the collections combines the data of tidy up the listed company, making use of two kinds of methods within chapter 3s respectively, carry on synthesize to rank, and get two kinds of methods to rank the result to look like the consistent conclusion.

全文共分四章：第一章，上市公司绩效评价的有关概念，该章是其它章节的理论基础，并对本文的评价角度做出界定；第二章，绩效评价指标及指标体系，该章选择上市公司披露的信息形成综合评价的原始指标体系，并介绍了常用的指标筛选和指标赋权的方法；第三章，综合绩效评价方法，这是进行第四章的基础，该章将第二章中的理论进行融合，形成了两种综合评价方法，并对每种方法的操作步骤进行了描述；第四章，实证分析，这是全文的重点，收集并整理上市公司的数据资料，分别利用第三章中的两种方法，进行综合排名，并得到两种方法排名结果近似一致的结论。

The main jobs of this paper are as followed: 1 The reuse of the frame design technology for aircraft assembly fixtures is researched. a frame line part library is built with the templet driven technology, the reuse of the frame line part come true by the tools for instantiation and instance modification. The design resources are effectively used, some repeating work is cut. 2 Two methods to obtain the assembly feature are proposed: the straight way by the Enumeration method and the indirect way by project features to the assembly plane. All of the assembly features of the frame and the adjustable bearings are obtained by these two methods which makes the frame automatic assembly technology for aircraft assembly fixtures come true. 3 The frame automatic assembly technology aircraft assembly fixtures based on assembly features is researched. A binary tree assembly model is used to express the assembly information of the frame for aircraft assembly fixtures, the automatic assembly between the frame, the aircraft and the adjustable bearing is completed within the three steps: distribute, obtain and evaluate assembly feature. Finally, the efficiency of the frame assembly design is proved. 4The frame interpart modeling technology for aircraft assembly fixtures is researched, the intersection methods are concluded and the arithmetic of the single-cut, double-cut and inter-cut intersection is proposed, the interpart fast modeling of the frame design for aircraft assembly fixture come true. 5Based on the researches mentioned before, a sub-system of frame fast design for aircraft assembly fixture is developed on CATIA. The sub-system is used to design the aircraft assembly fixtures in a large aeronautics corporation and make a good- effect.

论文的主要工作如下： 1研究了飞机装配型架骨架设计重用技术，在总结归纳骨架线框结构类型的基础上，应用模板驱动的方法建立了骨架线框库，通过骨架线框零件的实例化和离线编辑实现骨架线框的重用，有效利用设计资源，减少重复劳动； 2提出穷举几何对象的装配特征直接获取方法，遍历零件模型的几何对象，从中捕捉所需装配特征，该方法简捷、高效；提出向装配面投影的装配特征间接获取方法，该方法在现有特征基础上生成装配特征，解决了部分装配特征难以直接获取的问题； 3研究了基于装配特征的飞机装配型架骨架自动装配技术，采用一种二叉树装配模型表达骨架的装配关系，并通过装配特征的分配、获取和赋值三个步骤，实现了骨架分别与飞机产品和可调支承的自动装配，避免了繁琐的人工交互操作，提高了骨架设计的效率和规范化程度； 4研究了飞机装配型架骨架零件间建模技术，在总结归纳骨架元件相贯处理方式的基础上，提出了骨架元件单剪切相贯、双剪切相贯和互剪切相贯的实现算法，简化了骨架相贯处理的过程； 5基于以上研究，在CATIA平台上开发了飞机装配型架骨架快速设计子系统，并应用于某大型航空企业的装配型架设计，提高了设计效率和设计质量。

By fusing the IKONOS multi-band and pan image using several image fusion algorithms(IHS transform, PC transform, Gram-Schmidt transform and smoothing filter-based intensity modulation) and assessing the fusion image, indicates that qualitative comparison is too subjective, although many methods are provided for assessment when using quantitative methods, more bands and more methods should be used for their limitations, spectral curve comparison was the best method for appraising the result, spectral angle and geometry distance was introduced to appraise the spectral curve.

以IKONOS影像为数据源，对IHS、PC，Gram-Schmidt和基于亮度调节的平滑滤波四种融合算法进行融合处理，对其结果进行了评价。结果表明，定性比较主观性较强，定量比较方法虽多，但大都有一定的局限性，不同谱段的计算结果总有些差异。因此，定量评价时应该多选一些波段与评价方法才能获得比较客观的评价结果。光谱曲线的比较不失为一种比较好的方法，在对光谱曲线进行比较时本文引入了光谱角度和几何距离两种方法进行定量的比较。

In order to test the feasibility of spectral element methods, time integral methods and absorbing boundary conditions for aeroacoustics, several programs based of Microsoft Visual C++ are presented for different time integral methods and boundary consitions.

为验证本文的谱元方法、时间积分方法和吸收边界条件对于求解气动声学问题的可行性，本文基于Microsoft Visual C++平台编制了分别采用不同时间积分方法和边界条件的谱元算法程序，计算结果证明了谱元方法的高精度以及两种时间积分方法的可行性。

Methods: The methods of document arrangement were used in this study, First of all, from the source of "Inner Canon of Huangdi" in the meaning of Jueni syndrome, the mechanism of the formation of Jue syndrome, Jue syndrome of the classification system described; and then flow from the source, Jueni syndrome are classified according to the difference of cold and heat, asthenia and sthenia in "Treatise on Febrile Diseases", and summarize the treatment of the different methods, Combining with the modern case that treating Jueni syndrome with Zhongjing\' prescription.

方法本课题研究采取文献整理的方法，首先从源头上对《内经》中厥逆证的含义，厥证形成的机理，厥证的分类进行了系统的阐述；然后由源及流的将《伤寒论》中论述(来源：AB68C论文网www.abclunwen.com)厥证的诸多条文，根据寒热虚实的不同，将厥逆证进行分类，总结出厥证的不同治法，并结合现代运用仲景方治疗厥逆证的验案，挖掘仲景辨治厥证的证治规律，反映仲景治疗厥证的特色。

These methods can be divided into stoichiometric methods and path finding methods.

这些方法可以被分为化学计量法和通路发现方法。

Both methods are advanced flow cytometry methods, the results of two groups are correlated. The two methods can be substitutable, and used to perform the same assay.

在严格按操作规程进行校准和质控在控的前提下，使用这2种流式细胞检测系统测定外周血T细胞亚群的结果基本一致。

On the other hand,un-der appropriate boundary conditions,multisymplectic methods also conserve thethe sum of symplectic form on discrete space,and this shows that multisymplec-tie methods is the gneralization of symplectic methods and describe the systemmore essentially.

另一方面，在适当的边界条件下，多辛算法也保持离散空间上的辛形式和，因而多辛算法是辛算法的发展，它更深刻地反映了系统的本质。

The major methods involved in this paper are cyanidation,thiocarbamide process,thiocyanate process,thiosulfate process, multi-sulfide process,haloid process,and other reagents procss;the advantages and disadvantages of the methods as well as the suitability of these methods for treating various silver bearing ores are generally analyzed.

综述了国内外关于银浸出技术的各种方法，主要内容包括氰化法、硫脲法、硫氰酸盐法、硫代硫酸盐法、多硫化物法、卤化物法和其他试剂法等，简要分析了各种方法适用的含银矿石及其利弊。

Pachomius manual labour was organized as an essential part of the monastic life; and since it is a principle of the monks as distinguished from the mendicants, that the body shall be self-supporting, external work of one sort or another has been an inevitable part of the life ever since.

根据圣pachomius体力劳动组织作为一个重要组成部分寺院生活；以来，这是一个原则的和尚，作为有别于乞丐，该机构应自支撑，对外工作的这种或那种已一个必然的一部分，生活至今。

In order to study the effects of parametrical rolling on the ship movement and tilts, in allusion to ship's navigating in regular following waves, the equation of ship rolling motion is transformed into normal Mathieu equation by proper variable replacement when strong parametrical excitation in restoring moment varied according to sine or cosine wave.

为研究参数横摇对船舶运动和倾覆的影响，通过对船在规则波上随浪航行时，恢复力矩中出现的1个以正余弦规律变化的强参数激励项进行适当的变量置换，将船舶的横摇运动方程转换成标准形式的Mathieu方程。