According to the theory of the sound transmission line, this paper analyses the resonant frequency responsing pattern of a concrete pile with a single single breaking.
本义依据声传输线理论对只有一处断裂的混凝土桩共振频率的规律进行了分析。
The equivalent circuit and sound transmission characteristics of exponential acoustic waveguide;
指数形声波导管的等效电路及其声传输特性
An NEMS acoustic sensor based on the resonant tunnelling effect of AlAs/InGaAs/GaAs;
基于AlAs/InGaAs/GaAs共振隧穿效应的纳机电声传感器研制
Finite element analysis of ZnO piezoelectric thin film acoustic sensor;
ZnO压电薄膜声传感器的有限元分析
The research of the electret acoustic sensor signal acquisition system;
驻极体声传感器信号采集系统研究
Solutions to the Problems in Simultaneous Interpretation from Japanese to Chinese;
日汉同声传译中常见问题及其对策
Simultaneous Interpretation in Focus Group Discussion;
专题小组讨论中的同声传译
Information Processing in Simultaneous Interpretation-From the Perspective of IP Theories;
从信息处理理论角度研究同声传译中的信息处理
Calculation of sound transmission through corridor by using SEA;
走廊声传递的SEA计算方法
Discussion on sound transmission through corner junction;
墙角节点声传递机理的探讨
Based on the study of the sound wave propagation through single tube-row and two tube-rows,the physical mechanisms of the reflection,transmission and diffraction characters about many tube rows are analyzed.
基于对炉内单排和双排换热器管阵列声传播特性的研究,分析多排管阵列对声波的反射、透射和衍射机理,利用数学推理方法和迭代过程给出了计算炉内多排管阵列声透射与反射系数的数学模型,研究多排换热器管阵列的声透射特性,揭示了炉内多排管阵列的声反射与透射系数随声波频率、管排数和管阵列结构参数的变化关系,并在炉内实际温度下对声透射系数进行数值计算,为锅炉管道泄漏检测技术和声波除灰技术提供了理论依据。
Based on the study of the sound wave propagation through one tube row,by using the Twersky s sound scattering theory and the Fabry-Perot s interference theory,the sound transmission behaviors of two tube rows are studied.
根据炉内单排换热器管阵列声传播特性的研究,利用Twersky声散射理论和光学法布里-珀罗干涉原理,研究双排换热器管阵列的声传播特性,分析了双排管阵列对声波的反射、透射和衍射机制,给出了计算炉内双排管阵列声透射与反射系数的数学模型,计算了炉内双排管阵列的声反射与透射系数随声波频率、管阵列横向与纵向节距等参数变化的关系曲线,以及传输泄漏声辐射信号时的聋带和聪带的分布特征,指出双排管阵列对声波的截止带和导通带的位置与管阵列结构参数和炉内温度有关,并在炉内实际环境参数下对声传播特性进行了数值计算,为研究多排管阵列的声传播特性提供了方法,也为利用管阵列透射声谱判断管道泄漏口发生在管排阵列中的位置提供了依据。