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Based on the upper and lower solutions method,under suitable conditions,existence of solution of a three-point boundary value problem forthird-order ordinary differential equation with nonlinear mixed boundary conditions is obtained.

基于上下解方法，在一定条件下，得到了一类带有非线性混合边界条件的三阶常微分方程的非线性三点边值问题解的存在性，作为上述存在性结果的应用，在推论中给出了一类三阶非线性微分方程三点边值问题解的存在性。

M-point boundary value problem; momotone iterative; equation system; impulsive differential-integro equation; three-point boundary value problem; positive solution; Fixed point; Cone

基础科学，数学，数学分析m点边值问题；单调迭代；方程组；脉冲微积分方程；三点边值问题；正解；不动点；锥

The measurements in the ship tank and the wind tunnel show that there are no obvious differences between the mean profiles of turbulent boundary layers at the rigid wall and the compliant wall, but the turbulence intensity of the turbulent boundary layer near the compliant wall is higher than that near the rigid wall.

中文摘要：船池和风洞的热线热膜测量表明，刚性表面和柔性表面湍流边界层的平均速度型无明显差异，但柔性壁面的湍流边界层的壁面附近有较高的湍流强度；两者的相干结构有明显的不同特征。

The strain field normal to the boundary plane and the excess grain boundary volume are calculated and compared with the results obtained using the embedded-atom method .

在这项工作中，我们计算了垂直于晶界平面的法向应变场和晶界的过剩体积，并且与嵌入原子法所得到结果相比较，得到基本一致的结果。

The interlayer strain normal to the grain boundary oscillates with increasing distance from the boundary plane.

我们发现晶界法向原子层间距应变表现出衰减振荡的趋势，远离晶界的原子层间距逐渐趋向于体相的值。

Boundary layer flow state of the relationship between how much air power, especially the emergence of boundary layer separation, or

就会分离。附面层内的流动状态如何与空气动力关系极大，尤其是附面层出现分离后，升

This article analyzed the end forms of Uyghur sentence, and studied the sentence boundary detection rules, presented the method of sentence breaking, then designed Uyghur sentence boundary detection algorithm and program.

本文分析维吾尔语的句子结束形式，研究维吾尔语句子边界规则，给出了句子划分思路，并实现了维吾尔语句子边界识别算法及程序。

Pitting corrosion developed continuously by means of self-catalysis owing to the existing of passive-active cell in pitting corrosion hole. The Al2Cu phase was found on the grain boundary, and a poor Cu element area was observed nearby grain boundary.

在蚀孔内形成了钝化-活化原电池，使点蚀以自催化的方式不断发展。L401合金中α-Al相在吴占军西安理工大学硕士论文晶界析出A12Cu，在晶界附近产生贫铜区。

At the middle scale is the plate boundary level, where the Plate Boundary Observatory will image and characterize the slow deformation of the earth along the western U.S.

中级尺度是板块交界，在此，板块交界观测站将沿着美国西部与阿拉斯加，拍摄并描绘出地球缓慢变形下的特性。

In order to be fit for the calculation of wave transformation in harbor basin with irregular solid boundary, the governing equations and the boundary conditions of the present model are transformed by a non--orthogonal coordinate. Comparisons with the theoretical solutions indicate that the transformation is correct.

其次对上述完全型波浪绕射折射控制方程及边界条件进行非正交坐标变换，以适应存在固体边壁的港内水域波浪传播变形计算，经与理论解的验证比较，本文采用的坐标变换算法是正确的。

Finally it offers the analysis of the fault-tolerance system as well as its test verification.

这样，运行于空间环境中的系统的设计目标就是在保证系统实时性

However, it is still difficult to find out the real reason of the increase of the keratinized gingiva during the orthodontic extrusion whether it is due to the proliferation of the gingival tissue or to its elastic nature, that is because the proliferation of the fibroblasts as well as the connective tissue changes in volume and the intra-fibers spaces were all immeasurable in most of the studies.

然而，仍然难以找到真正的原因增加的角化牙龈在正畸挤压它是否是由于扩散的牙龈组织或其弹性性质，这是因为增殖的成纤维细胞以及作为结缔组织的变化量和内部纤维空格都是不可估量的，大多数的研究。