径中的

The thesis is organized as follows:In Chapter 1,a new partial differential equation model for Spontaneous Potential log in heterogeneous formations is introduced.At the same time,the existence and uniqueness of weak solution to the problem are proved,and the problem of resistance identification in SP log is studied.Furthermore,a jump condition capturing finite difference scheme is proposed and applied to solve such elliptic interface problems.The effects of various factors on SP response,which include objective layers resistivity,bed thickness,bore-hole diameter,invasion and water-flooded zones and so on,are investigated quantitatively by the proposed method, and satisfactory results are obtained.

具体安排如下：第一章首先建立复杂地层中自然电位测井的偏微分方程数学模型，证明了该边值问题弱解的存在唯一性，在此基础上研究了自然电位测井电阻率识别问题：然后发展了用于求解椭圆交界面问题的间断捕捉有限差分方法，利用该方法定量分析了目的层电阻率、地层厚度、井径、侵入带和水淹层等因素对自然电位测井响应的影响，取得了满意的结果。

Brownian movement and the hydraulic condition required is only that the coagulant can be dispersed in the water rapidly;As the floc is growing further,the condition of making the floc diameters controlled in a certain limit is to be provided as well as the condition favorable for the collision of the floc.

得到细小粒子的凝集动力由布朗运动决定，此阶段只需要有将混凝剂迅速分散于水中的水力条件；在絮体进一步成长过程中除造成有利于絮体碰撞的水力条件外，还要造成絮体粒径控制在某一限度之内的水力条件，这样可以得到密度高、沉淀效果好的絮体。

Duration of service also varied considerably, some counted in weeks or even days while others soldiered on for a quarter-century; indeed, a few have a problematical service record, having been captured in often unserviceable condition and relegated to training or spare parts duties.

各车的使用时间也大厢径庭，有的几天或几周内就除名了，有的用了差不多四分之一个世纪，实际上有些车辆的服役记录有问题，那些俘获的车辆中有很多是不堪使用的，并转交给了后方。

Since the diameter of styluses currently available on the market does not match with that of general pens as recommended by the referenced documents, users have had bad experiences in using styluses whose sizes and shapes do not meet the needs of all users.

市售触控笔的现有产品与文献中一般笔的笔径建议值不符，使用者使用触控笔的经验却为不甚舒适，外观尺寸及外观形态却不一定适合所有PDA的使用者需求。

A kind of ternary compound 3CaO·3Al2O3·CaSO4, occurring in coal briquet combustion experiments, was presented in this paper.

本文介绍型煤燃烧过程中三元含硫化合物3CaO·3Al_2O_3·CaSO_4的生成，并对影响该三元化合物形成的因素，如时间、粒径及压强等进行了探讨，揭示了燃煤固硫的部分机理，有助于今后工业型煤的发展。

Moreover, pruming leaf decreased the yields of muskmelon. In contrast to the control, the yield of remained upper five-leaf treatments was close to the controls, and upper-leaf made more contribution to the fruit.

在果实成熟过程中，与下位叶处理相比，上位叶处理的果实鲜质量、干质量较高，果实横、纵径的增大速度较快，果实的内壁糖和中心糖的含量较高。

The progresive regressing and regressing were made on the fruit production to the parameter of tree framework of gold delicion / M9 / Shandingzi in 6 years old based on the date of yeild investigations and measurment. By the marginal analysis and fuzzy clasification.These parameter were defined that trunk circumafename= 24.93cm, highth of tree=2.5m,average width ot tree=2.5m,size of tree=5.05～5.6m~3, number of length branch / per tree = 101-161.number of middle branch / pe...

本文以金冠/M9/山定子6年生树体为试材，对树体结构参数进行田间测定，用多元回归、逐步回归的方法分析出十种树体结构指标对产量的效益，用边际分析的方法和聚类的方法研究出金冠/M9/山定子产量最高时树体结构参数为：干周=24.93cm，树高=2.5cm，平均冠径=3.01m，冠高=2.5m，树冠体积=5.0～5.6m~3，单株长枝数=101～161个，单株中枝数=122—142个，单株短枝数=601～616个，单株枝量=847～903个，单株叶面积=13.5m~2。

The effect of solidgrain diffusion was reflected by f0. The core diffusion could be excluded by minishing theparticle scales, but the solid grain diffusion could not.

在常见幂函数形式的速率方程中引入修正系数f0体现了固体扩散对反应的影响，说明减小催化剂粒径，只能排除孔扩散的影响，并不能排除固体扩散对反应的影响。

In the present work,Cu nanoparticles with an average size of 20-50 nm were dispersed in diesel fuel oil . A injection pump plunger was in-situ repaired on a 12PSDB75 fuel injection pump by applying auto-reconditioning function of Cu nanoparticles. Mophologies and typicle element distributions of the plunger piston surface before and after repair were analyzed by scanning electron microscopy and energy dispersive X-ray spectroscopy.

将平均粒径为20~50nm的铜粉均匀分散到柴油中，在12PSDB75型喷油泵试验台上利用纳米铜微粒的磨损自修复性能，在不拆卸零件的情况下对磨损失效的喷油泵柱塞偶件进行了原位修复，利用扫描电镜、能谱仪等对修复前后柱塞表面进行了形貌与微区成分分析。

Based on researching into the classification mechanisms of feedforward single-layer radial basis function and linear basis function networks,the author presents the viewpoints that the RBF centers and widths should be determined through a self-learning procedure,that some new kernels naturally come into being according to which class the labeled patterns are misclassified to.

研究了前向单层径基函数网络和前向单层线性基本函数网络的分类机理，提出了RBF的中心和宽度应通过学习自动确定，在学习过程中根据错分样本被错分入的类别自动生成新的核函数这一观点。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。