查询词典 wave propagation

This paper, with calculation of dynamic range and the study of the characteristics o f seismic wave propagation, has analyzed the reason of insufficient use of dynam ic range of conventional and 24-bit remote seismometers.

从动态范围的计算出发，结合地震波的自身特点，分析了常规数字地震仪和24位遥测地震仪的动态范围没有得到充分利用的原因。

Characteristics of wave propagation in grouted rockbolt were investigated with numerical simulation, experimental measurement and theoretical analysis.

用理论分析、数值模拟和实验测试的方法研究了自由锚杆和锚固锚杆中的波传播特性。

In this paper, the elastic wave propagation in a two-dimensional piezoelectric phononic crystal is studied by considering the mechanic–electric coupling.

本文考虑力电耦合效应，研究了弹性波在二维压电声子晶体中的传播特性。

The caustics phenomena of electromagnetic wave propagation in concave reflector, the singularities of caustics, and the method of

40174032的一部分，得到如下结果：论文分析了利用Maslov方法求解非均匀介质中波动方程高频近似解的基本原理和求解过程，构造了介质系数只在一个方向变化时波动方程高频近似解的通用计算公式。

Approximate calculation of underwater explosion shock wave propagation［J］.

水下爆炸冲击波传播的近似计算［J］。

The scheme can be applied to simulating dam -break flood wave propagation in the natural river courses .

这种格式适用于模拟天然河道或水库中的溃坝洪水波传播。

Field observations showed that there are two major causes to shield tunnel during ground shaking: earthquake wave propagation and differential subsidence due to earthquake.

一是盾构法隧道结构在地震行波作用下的动力响应分析与抗震设计，二是盾构法隧道在不均匀震陷下的纵向受力研究与抗震设计。

The seismic disasters features and behavior mechanisms of the buriedwater supply pipeline are analyzed by synthesis and the breakage of thepipe joints caused by seismic wave propagation as main disasters mode isled into. The soil-pipe interaction, and the soil-pipe slippage arediscussed. Statistical experience method resulted from earthquakeinvestigations and theoretical methods based on reliability theory areintroduced. The reliability of buried pipeline is researched. The methodfor estimate connective reliability of network by means of Monte Carlesimulation technique and Breadth First Search method is introduced. Theconnective reliability of water supply pipe network is researched.

本文综合分析了地下供水管道的地震破坏特征和反应机理，引入了以接头破坏作为主要的破坏模式，并探讨了管土间的相互作用和滑移作用等问题；介绍了根据震害调查数据回归的统计经验法和基于可靠性理论的理论分析法，对地下管道的可靠性进行了研究；介绍了利用蒙特卡罗法和网络图论中的广度优先搜索法判定网络连通可靠度的方法，对供水管网的连通可靠性进行了研究；考虑到震害预测方法中的许多参数是随时间变化的，应用灰色理论和概率论，建立了基于GIS 的供水管网动态震害预测模型。

Shapes of microvoids in OFHC Cu and pure Cuare in difference. OFHC Cu target spalled under electric gun driven driven two stage metalflyer impact loading, the velocity profiles of rear surface were measured by VISAR. The spallstrength and debris size are according with the reported data and wave propagation law.

纯度不同的铜中微孔洞分布形貌存在差异，同时开展了电炮驱动二级飞片撞击无氧铜靶层裂实验，采用VISAR测量靶后自由面速度历史，测量的层裂强度和层裂片厚度与文献公布规律和冲击波传播规律基本符合。

In this paper, a large number of tests, theoretical and calculating analyses are made on the acceleration wave propagation law, slipform paving resistance calculation and forming quality analyses of paving slab by single factor experiment, orthogonal experiment, statistical method, computer simulation method, and theoretical analysis and experimental verification.

本文针对混凝土中的加速度传播规律、滑模摊铺阻力和路面摊铺成型质量三个方面，采用单因素试验方法、正交试验方法、数理统计方法、计算机模拟方法、理论分析和试验印证方法，进行了大量的试验、理论演引推导和计算分析。

I am accused of being overreligious," she said in her quiet, frank manner,"but that does not prevent me thinking the children very cruel who obstinately commit such suicide.""

客人们在卡罗利娜·埃凯家里，举止就文雅一些，因为卡罗利娜的母亲治家很严厉。

Designed by French fashion house Herm è s, this elegant uniform was manufactured in our home, Hong Kong, and was the first without a hat.

由著名品牌 Herm è s 设计，这件高贵的制服是香港本土制造，是我们第一套不配帽子的制服。