理论模型

This paper presents the principle of traveltime velocity tomography using Finite Difference method.

介绍了利用有限差分方法进行地震走时资料速度反演的基本原理与方法，并对理论模型进行了正演和反演。

Main results are listed as below: 1. In rapid solidification, when the cooling rate is over some critical value, the solidification system will become unstable in the sense of the nonequilibrium thermodynamics, a uncontinuous steady state jump phenomenon will occur, and this uncontinuous steady state jump can be understood as the glass transition.

主要得到了如下结果：(1)通过对快速凝固过程的动力学及热力学的分析，提出了非晶转变的分枝理论模型，结果表明，对一合金熔体，当冷却速度大于某一临界值时，凝固体系会出现非平衡热力学意义上的失稳而出现多定态分枝现象，这一多定态现象可以被理解为非晶转变。

IRM was proved to be capable to detect location of underfill delaminatin and cracks as well as the air gap size in the delamination.

并建立一套理论模型研究了红外线与下部填充料中损伤的相互作用，解释了红外成像的观测结果。

The experiment is done based on a glass cell and all the results are quite in agreement with the theory. The decay process of the background vacuum pressure caused by the untrapped cesium atoms after shutting off the desorption light is well explained quantitatively.

通过实验获得了不同光强和照射时间下关闭解吸附光后磁光阱中铯原子的衰减过程，理论模型定量地描述了背景铯原子造成压强的变化及其对最终平衡态下真空度的影响。

The influence of many factors on hydrogen storage capacity is emphatically analyzed, such as the zeolitic structures, Si/Al ratio, type of cations in zeolites and the difference of adsorption experimental conditions, etc.

重点分析了沸石的结构类型、硅铝比、阳离子类型及吸附实验条件差异对储氢量的影响，并讨论了超临界吸附理论模型的发展状况，最后探讨了沸石作为储氢材料的可行性和发展方向。

Conventional methods that are on basis of refraction arrival time or microlog cannot yield proper LVZ velocity or static quantities in areas with complex near surface conditions.

理论模型试验结果表明利用层析成像技术可由初至波的到达时反演表层低速带速度并求得静校正量。正演使用最短路径法射线追踪，反演采用SIRT方法。

In the second part, we discussed them from a larger data scale. As we know, all models were setted up according to an ideal state, but data from experiment adulterates amount of uncertain factors.

由于理论模型是依据理想状况而建立，而实验数据中掺杂了许多不可预测的影响因素，本文又运用这些策略对大规模实验数据进行了预处理，即从宏观角度上对以上策略进行了探讨。

A more speculative possibility is that small clumps of matter never form in the first place.

这与目前受欢迎的暗物质理论模型是互相冲突的。

Because this is a theoretical model, research is mainly built on the individual's thinking and deduced above.

由于这是一个理论模型，所以研究主要是建立在个人的思考和推导上面的。

Theoretical model and recent advances of the new thermoelectric cooling dehumidifying technology are systemically introduced.

系统介绍了热电冷凝除湿技术的工作原理、理论模型、国内外研究进展。

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。