查询词典 elastic

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Based on lots of literature and information, this paper has engaged in deep studies and brought forth a new kind of matchboard cement concrete pavement. Firstly, based on the theory of elastic thin slab and elastic subgrade, this paper has discussed the strong points and weaknesses of existed mechanics models of cement concrete pavements. Then, integrating each model's strengths and considering the practical conditions, this paper has put forward reasonable simulating models as well as basic mechanics hypothesis.

本课题在大量文献资料和作者深入研究的基础上，提出了一种新型企口板水泥混凝土路面结构，具体工作如下：(1)根据弹性薄板和弹性地基板基本理论，讨论了现有水泥混凝土力学模型的优缺点，并根据本课题的实际需要，综合各力学模型的长处，得到合理的力学仿真模型，并给出其基本假设。

Rat AAA model was made by perfusion PPE elastase through the abdominal aorta, and the specimen was obtained on postoperativeday 3, 7, 14, 28, respectively. Specific elastic fiber staining was used to observe the disruption of elastic fiber in aortic wall. Immunohistochemistry staining of CD68 was applied to observe the microphage infiltration. The in tisu hybridization and western blot of MCP-1 and MMP-2 were used to study the expression of mRNA and protein. Thus we can analyze the facilitated function of MCP-1 gene to the microphage adherence and infiltration on the earlier AAA.

采用经腹主动脉腔内导管灌注的方法制成大鼠AAA模型，分别于术后3天、1周、2周、3周、4周获取各组大鼠腹主动脉标本，行弹力纤维特殊染色观察动脉壁弹力纤维的破坏情况；行CD68免疫组织化学染色观察动脉壁中巨噬细胞的浸润；行MCP-1及MMP-2的原位分子杂交、Western蛋白质印迹观察二者的mRNA表达和蛋白表达；分析MCP-1基因促进巨噬细胞的黏附、浸润在早期AAA发病中的作用。

With increasing of heat treatment temperature,the fraction of ω phase decreases and a phase precipitates,which cause the hardness and elastic modulus decrease.When annealing temperature is close to β transition point,the hardness and elastic modulus presents minimum values.

结果表明，当合金中存在ω相时，合金的的硬度和弹性模量最高，随着热处理温度的提高，合金中的ω相消失，代之而来的是a相，而且越接近β转变温度，a相含量越少，对应的弹性模量和硬度越来越低。

Second, by analyzing the strain of northsouth blocks of the fault, we find an asymmetric displacement distribution between the two sides of the rupture, and the two blocks are subject to compressional and tensional stress respectively. It is a pattern that cannot be explained with the linear elastic theory. However, laboratory experiments and in situ measurements in boreholes have shown that many crustal rocks exhibit a nonlinear elastic behavior in compression and tension with a dependence of the Young's modulus on the minimum principal stress. So we suggest that the nonlinear displacement distribution should be considered when dislocation and hypocentral parameters are analyzed.

进而通过对地震南北盘同震应变的分析，发现了昆仑山地震的南北两盘分别受挤压和拉张两种应力作用，研究表明多种岩石在拉张和压力作用下其最小主应力下的杨氏模量表现出非线性弹性特征，从而提出对昆仑山地震地表位移及震源特征参数分析时应考虑非线弹性介质导致的非线性弹性位移分布特征。

However, most of these investigations focused on the rotating beams or plates undergoing a prescribed large overall motion, where the effect of large overall motion of the reference frame on elastic deformation was considered but at the same time the beam's elastic deformation couldn't influence the large overall motion of the reference frame because the large overall motion is known a priori. In fact, this kind of problem on the dynamic stiffening is a structural dynamics problem in a non-inertial frame.

值得指出，上述这些研究工作都局限于大范围运动为已知情况下的非惯性系下柔性体的动力学性质，实质上是一个非惯性系下的结构动力学问题，只考虑了大范围运动对变形运动的影响，而没有充分考虑到大范围运动和变形运动之间的相互耦合作用，这种耦合作用是单向的。

With the development of the theory of constitutive model of soil, the elastic constitutive model was displaced by some non-linear constitutive models such as the Duncan-Chang model, Cam-clay model, etc, which leads to that the Biot′s consolidation theory has developed from elastic into nonelastic.

随着对岩土本构关系研究的深入，经典Biot理论中土体采用弹性应力应变关系的假定逐渐被一些非线性本构关系取代，如Duncan-Chang模型、剑桥模型等，将Biot固结理论由线性推向了非线性。

The effect of the elastic-plastic matrix of friction soil with nonrelevant flow rule on the numerical convergence of finite element method is analyzed in this paper; and the effect of elastic modular, poisson ratio and earth pressure coefficient on numerical results are studied in this paper. At the same time, the hybrid element with a mixture of displacement and stress variables and the conventional element with solely displacement variable are compared when used in geomaterials.

在ABAQUS有限元分析软件的基础上，本文研究了服从非关联流动法则摩擦性土体的弹塑性矩阵对有限元数值算法的影响，并研究了弹性模量、泊松比以及地基土压、力系数对数值计算结果的影响，同时探讨了数值分析过程中常规位移元与杂交元在岩土工程中的应用。

Based on the eigen theory of elastic mechanics , the Hamilton density functions for various deformation process are obtained by defining the normal conjugate momentum density , and the Hamilton normal equations for elastic body are also given .

Hamilton体系由于其方程具有对称性，在经典力学和量子力学及其场论等领域中发挥了重要作用。Hamilton体系与Lagrange体系的不同之处体现在：它是在相空间，以对偶变量的形式描述系统的运动规律。

The numerical approach consists of an operator split technique,which transforms the elastic-plastic problem into a purely elastic problem and a residual problem with prescribed eigenstrains.

针对接触表面变曲率的特点，引入局部坐标系，构造出局部坐标下残余应力应变场的分布状态，建立了变曲率连续啮合过程中安定状态残余应力的计算方法。

A carrier gas such as nitrogen is directed through line 20 and valve 22 to connect with line 26 and mix with the gas sample.

如氮气之类的载体通过管线20和阀22引入，与管线26相通，与气体样品混合。

But for the most part, knaves and parasites had the command of his fortune

然而支配他的家产的大多是恶棍和寄生虫。