方法研究

At first the index system was built on the basis of survey; then 500 data was gained from the more than 800 examples of 72 tunnels; thus the quantitative evaluation was achieved. Finally, through case studies, the judge method based on quantification theory was tested and a high precision and reliability is achieved.

通过对国内外情况的调查统计，得到了公路隧道围岩亚级分级的指标体系；并依托工程实际情况，在72条隧道中采集了800余条样本，从中选出了500条数据进行分析，完成了以数量化理论为基础的施工阶段围岩亚级的定量判定方法研究，并通过工程实例对判定方法进行了检验。

The coherent inversion method and rootmeansquare velocity conversion method are jointly applied to build the interval velocity model. The tomographic imaging technique is used to optimize the geologic model. Based on the research of depth migration method and comparison of migration effects, the approaches and steps for building accurate migration velocity field are summarized, thus greatly improving the effects and efficiencies of velocity modeling and migration imaging.

采用相干反演法与均方根速度转换法联合建立层速度模型，利用层析成像技术优化地质模型，通过深度偏移方法研究和偏移效果的对比，总结了建立精确偏移速度场的方法和步骤，使速度建模和偏移成像在效果和效率上都得到了很大的改善。

We also analyzed quantitatively the second-degree price discrimination under a sort of typical nonlinear demand functions.

其次，用博弈论的方法研究了寡头厂商二度价格歧视的方法和特点。

The delay time of fast and slow shear wave and plane map of anisotropic coefficients are gained with the real data of three lines, a comparison with drilling data and study results of other methods shows that this method is effective and reliable.

利用三条测线的实际资料计算得到了快慢横波延迟时间、裂缝密度及各向异性系数的平面图，通过与实际井资料和其它方法研究结果的对比，说明该方法是有效和可靠的。

The study is includes: some images having some repeated area is projected on the spherical surface, and the adjacency pixels is matched, the seam line is clear, and get the background image from the panoramic spherical image according to the relation table based on view angle.

该方法研究了利用多幅具有重叠边界的客观图像通过球面投影、相邻图像像素匹配、消除相邻图像拼接处亮度差，进行无缝拼接获得全景图，以及在仿真过程中通过对应关系表得到正确背景图像的方法。

In writing on analysing the tactfulness foundation of quotation method research present situation, make the mathematics model of the optimization quotation problem of power plant, and have given based on rich run to discuss and probability theory beg the method of untying.

文中在分析策略性报价方法研究现状的基础上，提出了电厂优化报价问题的数学模型，并给出了基于博弈论和概率论的求解方法。

Secondly, in the research of fuzzy clustering methods, we gave out several useful formulae and an improved fuzzy transitive closure method according to the degrees of influence of various pyrolysis parameters. We also brought up a modified FCM algorithm according to the different functions of the samples.

其次，在对基于模糊聚类的识别方法研究中，根据各种热解参数在油气层预测中的影响程度，给出了构造模糊相似矩阵的几个有用的公式，以及改进的模糊聚类传递闭包法；根据每个样本点对分类的不同作用，提出了一种改进的模糊C均值算法；试验结果表明，这两种方法都可以有效地提高分类精度。

The valuation theory and method are tested to be scientific and practical after a case study in Shanhaiguan District, Qinhuangdao City.

经验证，评估方法科学实用，对农用地估价理论和方法研究具有重要的借鉴意义。

The current developments were summarized and the research contents of this thesis were described.In the second chapter, a simple procedure is described for the simultaneous extraction and determination of betulin and betulinic acid in white birch bark. To compare extraction efficiency, effect of white birch bark growing in different locations and different extract solvents on the content of betulin and betulinic acid were evaluated.

第二章建立了一种简单、准确度、灵敏度高和重现性好的RP-HPLC同时测定白桦树皮中白桦酯醇和白桦酯酸含量的方法，并用这种方法研究了提取溶剂以及产地对树皮中白桦酯醇和白桦酯酸的含量影响，确定了最佳的提取工艺。

Objective and Methods:The Cardiac hemodynamic changes in 61 patients with hyperthyroidism were studied by Doppler echocardiography.

目的与方法：本文用多普勒超声心动图的方法研究甲状腺机能亢进患者高动力循环和心力衰竭的关系。

The basic concept of FOP can be summarized as to further optimize effective prescription according to the standard of curative effects and with the aid of modern science and technology and theories of traditional Chinese medicine.

其基本内涵可概括为：以确有疗效的中药复方为研究对象，以现代科学技术和传统中医药理论为技术支持，以该复方所治病证的药效响应为评价标准，以优化重组疗效更优的新复方为研究目的。

Ever since our world has been a world, native forests have been indiscriminately exploited by man.

自从我们的世界一直是世界原生森林被任意剥削人。