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Conclusively, 3D time domain numerical simulation is very important both in theory and engineering application.

因此本文的三维时域数值方法的研究具有重要的理论意义及工程实用价值。

For a large number of reinforced concrete structural analysis problems,can only use numerical solutions.

对于大量的钢筋混凝土结构分析问题，只能用数值方法解决。

Through these tests we understand the rule of stress state and fracture regularities of the orifice structure before and after cracking of concrete and obtain a large number of test data They provide basis for establishing numerical model and design method.

通过试验，得到了孔口结构在混凝土开裂前后的受力状态和破坏规律，为建立数值模型和配筋方法提供了依据。

After a simple retrospect of the development and application of the heat pipe, the working elements and the history and the actual state of the investigation inside the thermosyphon, a numerical model based on the previous experimental and theoretical studies is developed to simulate and analyze the process of the flowage and heat transfer in the condensator of the two-phase closed thermosyphon.

本文首先简单回顾了热管的发展及应用情况，介绍了热虹吸管的工作机理及其内部凝结换热的研究历史和发展现状，然后在前人实验和理论研究的基础上提出了本文的研究方向，建立了一个数学模型，对两相闭式热虹吸管冷凝段的流动和传热过程进行了数值模拟和理论分析。

The higher-order phase compensation condition and numerical reconstruction equation are derived.

推导出了满足高次相位补偿的条件和满足补偿条件时的数值再现计算公式。

This paper uses mixture density networks to forecast the time-varying conditional density values of financial time series, and puts forth a new numerical algorithm to calculate Expected Shortfall. The application in Hong Kong Hangseng index approves that Value-at-Risk at high probability levels is accurate, and that it also has good forecasting ability in fluctuation. MDNs can effectively describe the empirical distribution of returns and the volatility mechanism, and is a new model for measuring financial market risk.

基于混合密度网络模型估计金融时间序列的时变条件密度，提出采用数值模拟方法计算Expected Shortfall的新途径，对香港恒生指数的实证研究表明，VaR的预测精度在高端分位点较好，模型评估指标反映出预测效果良好，混合密度网络可以有效地描述收益的经验分布统计特征和波动规律，是一种有效的金融市场风险测量模型。

Using the output data of a MM4 mesoscale numerical model which fairly well simulated the developing structure and the evolution of the "96.1" snowstorm event over Qinghai Xizang Plateau, a nonlinear and non zonally non parallel basic flow symmetric instability models and simulation system were developed to validate the possible effect of conditional symmetric instability on the formation of the snowstorm process, the results showed that in a developing model of two dimensional nonlinear SI i...

利用"96 。1"青藏高原东北部暴雪过程的较成功的中尺度模拟的输出资料，用非纬向非平行基流中的对称不稳定模式，对"96 。1"暴雪发生发展过程的动力学机制进行了三维基流中二维非线性对称不稳定数值模拟试验。结果表明，ψ场和w场的三维配置与切变线的演变过程相当一致，说明用三维基流中二维非线性对称不稳定可能能较好地描述SI在切变线东伸南移过程中所起的作用。

These parameters conditionality and physical significance are proved by numerical calculation.

最终通过数值计算说明了这些参量之间存在制约关系和物理意义。

On the basis of similarity principle study of the ASP ternary complex flooding, we adopt the method of simplicity, take the foam into differential equation, construct the similarity criterion and the similarity principle of differential conditions, the similarity criterion and the similarity principle are checked and analyzed by numerical simulation and physical simulation method.

在三元复合驱相似原理研究的基础上，采用简化的方法，将泡沫相引入微分方程，建立了泡沫复合驱物理模拟全相似准数及不同条件下的相似准则，并利用数值模拟方法、物理模拟方法对准则进行了检验和敏感性分析。

Then, by iSIGHT, experiment designs are redesigned of 40 kinds of different ""V-type"" folded core. Based on the above, a surrogate models are built for thermal conductibility performance of sandwich panel with ""V-type"" folded core in this paper, and they can be optimized by multi-subject. The numerical simulation function and optimization design method in condition of lightest weight are shown in this paper.

其次，用iSIGHT软件重新设计了40组不同构型的试验设计点，并以此为基础对V型褶皱芯材夹层板的热传导性能构建了可用的代理模型，给出了数值模拟函数和最轻重量条件下的优化设计方法。

Diabetes is a social disease that affects several million people worldwide.

糖尿病是一个社会性疾病，全世界有数百万人罹患此病。

I'll call you on Friday to see if we can reschedule our luncheon meeting at your convenience.

我星期五会给您打电话在您方便的时候我们重新安排我们的午餐约会。