结构单元

In order to predict the mechanical property and strength of the plain woven fabric composite, a finite element model of the Representative Volume Element with a convexo-convex structure was established based on plain woven fabric laminates in the distribution of micro yarn.

为更准确预测平纹织物复合材料的强度，基于平纹织物层合板内纱线的细观分布，建立具有双凸结构的特征体积单元RVE有限元模型。

The comparison with conventional coplanar PDP has been made.The electric field distribution and the density distribution of particles at different time have been given.

给出了不同时刻两种结构放电单元中电场、各种粒子浓度的空间分布以及各种粒子的平均浓度随时间的变化关系。

It provided a correct and reasonable mathematical model for the analysis of the ultimate bearing capacity and crankle stability of the thin-walled structure.

论文在比较了两种运动描述方法（完全拉格朗日法和更新拉格朗日法）异同点并分析了非线性几何关系及大变形下的弹性物理关系的基础上，基于增量虚功原理推导了几何非线性空间梁元单元切线刚度矩阵，采取分模块形式，分别表示了轴力、弯矩、双力矩对几何矩阵的贡献；通过球面显式荷载增量迭代式弧长法求解方法编制程序，很好地实现了几何非线性增量荷载的自动步长选择及全过程跟踪，为薄壁杆系结构的极限承载力分析和弯扭失稳分析，提供了较为精确合理的分析力学模型。

Therefore, the 'generalized velocity unit' was introduced on the assumption that the surface velocity in the direction perpendicular to the line is a steady velocity frame with the topographic relief. The 3-D tomostatics velocity inversion was improved to suit the crooked wide line geometry.

为此，在假设垂直测线方向上表层速度是随地形起伏的稳定速度结构的情况下，引入"广义速度单元"概念，对三维层析静校正速度反演过程加以改进，使其适合宽、弯线资料观测系统。

The damage is modeled by using a de creased cross-sectional area.

结构的局部损伤用减小受损单元的横截面面积来模拟。

The influence of the crystal lattice and geometry of the inclusions on phononic band gaps was studied.

研究了晶格点阵结构和填充物单元形状对声子带隙的影响规律。

The relationship between crystallite structure of coke and coke macroscopic property was studied.

结果表明：焦炭气孔壁最基本单元——微晶结构是影响焦炭宏观性能的最本质因素。

The presence of time lag have an external inevitability, and it will influence people who collect and dispose information, touch the effect of course, debase students'ability of fitting society, increase the side-effect of course, augment the oppugn of community and families. And it will also disintegrate curricular structure, so we can't unify the instrumental characteristic and the culture trait of Chinese course.

时滞的存在具有一定的客观必然性，它会影响到调研人员和设计人员对信息的把握程度，影响到课程的推广力度和实际效果，降低学生对社会的适应能力，增加课程的社会负面效应，增加社会组织、家庭等单元对课程的质疑，它还会分化语文课程内部组织结构的严密性，使语文的工具性和人文性难以实现真正的统一。

At the same time, the theoretical solution of this differential equation is derived.

本文研究工作包括两个部分，第一部分是钢筋混凝土结构有限元分析方法的研究，下面的1至5项属于这个范围：第二部分是有限单元构造方法的研究，见第6项。

This dissertation has conducted some information superiority oriented research focusing on some key technologies such as information acquiring, object recognition, situation assessment, threat assessment, target assignment, effectiveness evaluation of C~4ISR system, effectiveness evaluation of NCW in cognitive domain and so on. The main research and devotement of this dissertation are listed as follows: 1. Based on the analysis of physical meaning and campaign course of Lanchester linear law, we proposed a model reflecting the impact of surveillance and reconnaissance on force attrition. The model also discussed the effect of asymmetry information on the outcome of the battle, and conquered the disadvantage of Lanchester equation in modeling C~4ISR system.

本文面向信息优势对C~4ISR系统的信息获取、目标识别、态势评估、威胁估计、武器分配、效能评价以及网络中心战等关键技术进行深入研究，取得了一些创新性成果：(1)通过对Lanchester线性率中各参数物理意义及作战过程的分析，建立了反映侦察和监视效果的兵力消耗过程模型，并引入博弈论分析了战场上信息的不对称对交战结果的影响，克服了描述C~4ISR系统的Lanchester方程没有考虑作战单元、对手和环境间的动态交互以及数学结构简单的缺点。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。