reaction of propagation

Taking the reaction at bottom of bridge pier generated by the spatial coupled vibration of the vehicle-track-bridge system as the excitation of the three-dimensional model of soil-building, the propagation pattern of the ambient vibration in soil and its vibration effect on the surrounding building are numerically analyzed.

将车辆-轨道-桥梁系统耦合振动产生的桥墩墩底反力作为土体-建筑物三维有限元模型的外部激励，通过数值分析得到环境振动在土体中的传播规律以及对周边建筑物的振动影响。

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In addition, after the model derivation, the signal propagation of vehicle queuing chain reaction model and the wave velocity propagation of traffic wave model have consistency, although the two models point respectively from micro and macro perspective.

此外，经过模型推导发现，车辆排队的链式反应模型中信号传播公式与交通波模型中波速传播公式形式上相同。

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Analysis the three stages of explosion: the initial stage, the propagation stage and the decrease stage by numerical simulation, and analysis the relation of molar concentration of different components with chemical reaction rate in the elementary reaction.

通过数值模拟分析了爆炸的三个阶段：爆炸的初始阶段、爆炸的扩展阶段和爆炸的衰弱阶段。在基元反应中，分析了各个组分的摩尔浓度以及基元反应的化学反应速率。

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Optimal interfacial reaction layers with lamella-shaped, serration-shaped and club-shaped morphology were affirmed. Especially, the joint with serration-shaped morphology reaction layer which can prevent crack propagation has the better mechanical property. The result provides a basis for optimization of joint mechanical property.

确认了具有薄层状、锯齿状和棒状的界面反应层能够形成可靠连接，特别是锯齿状反应层有助于抑制裂纹的扩展，具有最佳的力学性能，为接头力学性能的控制提供依据。

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A method for the determination of arylamines, aniline,α-naphthylamine and o-chloraniline, which absorption spectra are seriously overlapped, was proposed by back propagation artificial neural network ( BP-ANN)-spectrometry based on the diazo coupling reaction of arylamines with α-naphthol.

利用芳胺的重氮化偶合反应，采用误差反向传播人工神经网络方法，对于吸收重叠的3组分芳胺类化合物体系进行同时测定；

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The numerical calculation of the formation and propagation process of oxy-hydrogen detonation wave was made. Results show that CESE method and elementary chemical reaction model are applicable to simulate the refined structure of oxy-hydrogen detonation wave.

对氢氧爆震波的形成和传播过程进行数值计算，结果表明，应用CESE方法和基元化学反应模型能够成功地模拟氢氧爆震波的精细结构。

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