理论模型

The proposed model was verified qualitatively by experiment. Besed on the model, a new type of aggregator has been designed.

在这个理论模型的基础上，设计了一种防金属蒸气污染的新型隔离头。

So in this paper a new damage variable was defined, then, Based on damage theory and Weibull distribution damage evolution rule, a simplified ameristic damage constitutive equation was established for concrete under uniaxial compression.

为了用简单的方程将上升段和下降段连接起来，本文以峰值割线模量为基准，定义了一种新的损伤变量；并以经典损伤理论模型为基础，根据混凝土损伤演化规律的概率密度服从Weibull分布，提出了一个统一的方程来描述混凝土单轴压缩时应力应变关系的全过程。

Both the scattering and rheological results indicated that the phenomenon similar to"double cloud point", which has been found along the vorticity direction by previous studies, could be also observed in the velocity direction, which confirms the prediction of the above theory that the polymer blend will exhibit anisotropical complex phase diagram under shear. It's also found that the mixing along vorticity direction was reduced by weak shear but enhanced by strong shear. In addition, the more remarkable the molecular weight differences between components, the more prominent the shift of the apparent phase boundary along vorticity direction.

除了以往研究发现涡流方向存在&双浊点&现象以外在，本文的光散射和流变测试均显示，剪切场下体系在流动方向上也出现了类似&双浊点&的现象，证实了上述理论模型关于剪切场会导致二元高聚物共混体系出现各向异性的复杂表观相图（例如Miscibility Gap现象）的预测；同时发现弱剪切会导致体系涡流方向上的相容性减小，而强剪切则在该方向上增强相容性；另外，两组分分子量的差异越大，表观相界的移动越显著。

In experimental study, the validity of the mathematical models is experimentally verified. The structure parameters, permeability, filtration performance and mechanical properties of new anticlogging filtration material and two traditional nonwoven geotextiles are tested and compared.

在实验方面，通过垂直渗透系数实验及淤堵实验分别验证了相应理论模型的正确性，并分别测试了本文研制的五组试样的结构性能参数和渗透性能、过滤性能以及机械性能，分析了针刺密度对织物各项性能指标的影响。

Analysis of pipe burst is one of the important spatial analysis functions of underground pipeline network comprehensive GIS, the thesis puts forward the main assignment of pipe burst analysis, and analyzes the character of the usher nodes and the retral nodes of arborescent pipe network. The paper realizes the valve topological analysis of the pipe network.

爆管分析是地下管网GIS中重要的空间分析功能之一，论文论述了爆管分析的主要任务，阐述了爆管分析的理论模型，分析了树状管网中结点的父结点、子结点的性质，实现了管网的阀门拓扑关系的分析，在此基础上，完成了地下管网爆管关阀分析的算法实现。

An isothermal one dimension model of axisymmetrical compression was proposed, which can describe the deformation of metal and particulate reinforced metal matrix composites in the semi solid state.

建立了用于描述金属及颗粒增强金属基复合材料在半固态下一维等温轴对称压缩变形行为的理论模型。

The observed light curve continued to track the〓Co decay until t～800 days. After day 800, the observed bolometric light curve had an excess above the decay line required by〓Co.

但在800天以后，观测的热光度曲线的下降变缓，且大约在900天至1200天有一目前的理论模型均无法解释的热光度&鼓包&。

Utilizing improved thermal/mechanical simulation apparatus, the quickly electric heating technique is realized for carbonous composites, tensile and compressive properties of hybrid carbon-carbon composite at up to 2800℃ are then experimental investigated in this paper, both tensile and compressive fracture strengths and moduli are measured at different temperatures.

假设材料烧蚀后各相介质统计均匀分布，考虑孔隙中的气孔与固体相之间的相互作用，建立了相应的细观理论模型，预报了不同结构层次的复合材料的热物理性能及有效弹性模量随温度和加温速率的变化规律，与实验结果对照，吻合较好。

By comparing and analyzing, it is concluded that for simple and slow slope terrain, the change of wind speed around hill can be truly calculated by some experimental formula such as MSFD calculations. While for cliffy slope and complex terrain experimental formula cant calculate the wind speed truly, it is well to analyze the question by numerical simulation.

通过对比分析可得，对于简单的、坡度较小的地形，山丘周围的风速变化可以较准确的由一些经验公式，例如MSFD理论模型计算得出；而对于坡度较大的以及较复杂的地形，经验公式无法较准确地对风速做出估算，只能借助于数值模拟来分析。

Numerical calculation of laser-induced collisional energy transfer in Eu-Sr.

激光感生碰撞能量转移的四能级理论模型。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。