查询词典 anomalous propagation

The crack and stress-strain of Chinese White Poplar were studied by the box counting method. The results showed that the cracks were obvious fractal and that the value of dimension D was determined to be between 1.2～1.5 by studying the crack propagation in the two dimensions. By comparing the crack propagation over a period of time, we found that the value of D increased as the crack increased.

运用数盒子法对裂纹发育带在二维平面内的分布进行了分形特征研究，发现木材裂纹具有明显的分形规律，分形维数为1.2～1.5；通过比较不同时间段的裂纹发育情况，发现裂纹的分形维数随着裂纹的扩展呈增加的趋势。

In a wireless communication apparatus (100), a frame generating part (120) adds a header to a data portion to form a transport frame. A control part (190) acquires a variation index in a propagation path and decides the length of the data portion of the transport frame in accordance with the propagation path variation index.

在无线通信装置(100)中，帧生成单元(120)将报头附加到数据部分而生成发送帧，控制单元(190)获得传播路径的变动指标并根据该传播路径变动指标来决定发送帧的数据部分的长度。

A power law between the propagation velocity of the band and the strain is discovered. For the bands of type A and B, which propagate almost continuously, the propagation velocity keeps a good linear increasing trend with the increasing applied strain rate.

分析了应变率和变形对PLC变形带传播行为的影响，发现PLC变形带的传播速度与应变之间符合近似的幂律，对于保持传播中途无驻留现象的A类型和B类型PLC变形带，带的传播速度与应变率很好地满足线性关系。

In the auto-body assembly process, the sound joint configuration would reduce and/or eliminate assembly variation propagation between parts, because rational allocation and design of joint configuration enable to adjust assembly process locators to achieve slip joint absorb or compensate the variation accumulation to improve the assembly robustness, therefore, the paper study joint type design and configuration and describe a multi-station auto-body assembly propagation model.

在车身装配过程中，良好的接头设计可以减小甚至消除零部件间的装配公差的传播，而且合理的接头配置方案有助于装配偏差的减小与装配过程的稳定性，因此论文详细分析了接头类型设计与接头配置，并介绍了多站点车身装配偏差传播模型。

With analysing the the fatigue mechanism, the general mode of interply fatigue damage propagation is denoted by delamination length and crack density. Based on the power-law, the relationship between number of cycles and delamination length and crack density are established. The specimen is modeled as an equivalent six-ply material system. Starting with the analysis of interply stress, the interply shear stress under cyclic loading is calculated by using nonlinear three-demension FEA. According to the stage regularity of fatigue damage propagation, such models as average strain, effective modulus, ratio of delamination length and crack density, experimental relationship between crack density and effective modulus, are proposed by introducing subsection coefficient.

通过对疲劳机理的分析，确定了以脱层长度和裂纹密度表示的层间疲劳损伤演化的一般模式，利用指数法则建立了脱层长度和裂纹密度随疲劳循环周次变化的关系；从层间应力分析入手，以等效六层的材料模型对循环载荷下的层间剪切应力进行了三维非线性有限元分析；根据疲劳损伤扩展的阶段性，引入分段系数，分别建立了平均应变与载荷循环周次的分段线性模拟模型、有效刚度随载荷循环周次的变化关系模型、裂纹密度变化和脱层长度变化关系随载荷循环周次变化的分段线性模型以及疲劳裂纹密度和有效刚度关系的经验模型。

The explicit solution of the strain energy release rate of crack propagation along the pure bend sandwich beam specimen has been deduced in the paper by use of the superposition principle of the energy and section inversion method. Based on the critical load of crack propagation along the interface through the testing measurement, the fracture toughness of four-point bending Si3N4/Al/Si3N4 specimens along Si3N4/Al diffusion joining interface has been obtained by using the explicit solution.

利用能量的叠加原理和截面转换方法，本文导出了纯弯曲Sandwich梁试样界面裂纹扩展应变能释放率的显式解，并根据实验测得的界面裂纹扩展的临界载荷，用其计算出了四点弯曲Si3N4/Al/Si3N4试样Si3N4/Al扩散连接界面的断裂韧度。

Based on basic theory of elastic wave propagation, wave equation forpropagation of elastic wave in 2 dimension vertical inhomogeneous mediumof similar concrete cutoff wall model is developed. 2 dimension elastic sheetof concrete cutoff wall is established to research law and energy distributionrelations between propagation, attenuation, reflection and transmission ofelastic wave in concrete cutoff wall; Based on the concept of resolution, thecontent of vertical reflection method used to inspect concrete cutoff wallresolution is raised and factors will have influences on resolution are analyzed,expression of defective layer composite reflection factor and detectabledefective layer maximum thickness are developed; Relations between allsteps of sampling system of vertical reflection are build, the influence ofcentrum characteristics and receiving sensor on testing results are analyzed,therefore parameter requirements for testing instrument and parameter selection principle of collected parameters are raised.

2从弹性波传播的基本理论研究出发，推导了弹性波在类似混凝土防渗墙模型的二维垂向不均匀介质中传播的波动方程式；建立了混凝土防渗墙二维弹性薄板模型，研究弹性波在混凝土防渗墙中的传播、衰减、反射、透射规律及能量分配关系；从分辨率的概念出发，提出了垂直反射法检测混凝土防渗墙分辨率的内涵，对影响分辨率的因素进行了分析，推导出了缺陷层复合反射系数、可检测缺陷层极限厚度的表达式；建立了垂直反射法采样系统各环节之间的关系，研究分析了震源特性、接收传感器对测试结果的影响，提出了对测试仪器参数的要求及采集参数的选择原则。

In order to record the historical process of technology propagation in honeysuckle production, the author investigates in detail technology propagation and application during the process of producing and selling honeysuckles in the Bunu-Yaos'community, and analyses the effect of technology change on culture change, which the introducing of crop honeysuckle production has led to. And submit views and suggestions specifically for the existed problems. Sum up the shared changing rules of crops, technology and culture.

以记录金银花生产技术传播的历史为脉络，对布努瑶地区金银花生产、销售过程中技术的传播与应用状况进行详细调查，分析了作物金银花引进生产这一技术变迁对布努瑶文化变迁的影响，并针对其中所存在的问题提出自己的看法和建议，总结作物、技术与文化共变的规律。

In the first part of the paper, it discusses the publishing and utilization condition of the on-line scientific documents in China. In the second part, it analyzes the obstacles existed in the essential elements of the propagation system and the inabilities of the propagation system itself and the social environment.

首先介绍我国网络科技文献的出版及利用情况，然后从科技文献网络传播的基本要素、网络传播系统本身以及传播的社会宏观环境等几方面详细分析了我国科技文献实现网络共享的障碍。

Two-dimensional percolation lattices are used to describe urban wireless propagation environment, and random walks are employed to model radio wave propagation. The probability that a generic ray undergoes certain number of collisions at specific spatial location is derived from the Bernoulli equiprobable experiments and the maximum entropy principle.

使用二维渗流网格描述城市无线传播环境，使用随机游动过程对在该环境中传播的无线电波进行建模，在此基础上分别使用Bernoulli等概率试验和最大熵原理方法计算随机射线在传播空间的概率分布。

A carrier gas such as nitrogen is directed through line 20 and valve 22 to connect with line 26 and mix with the gas sample.

如氮气之类的载体通过管线20和阀22引入，与管线26相通，与气体样品混合。

But for the most part, knaves and parasites had the command of his fortune

然而支配他的家产的大多是恶棍和寄生虫。