Based on the Twersky s sound scattering theory and the grating diffraction theory,the sound transmission behaviors of a tube row in boilers are studied.
基于Twersky声波散射理论和光栅衍射理论,对炉内单排换热器管阵列的声传输特性进行了研究,分析了管排阵列对入射声波的反射、透射和衍射的物理机制,给出了计算管排阵列声透射与反射系数的数学模型,数值研究了管排阵列对声波的反射与透射系数随管间距、声波频率等参数变化的关系曲线,揭示了单排管阵列对声波传播具有截止和导通作用,并且其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。
The novel matrix-arranged equivalent circuit model of SMPDP with multiple discharge is presented in this paper.
文章在原模型基础上进行了改进设计,提出了多放电单元矩阵排列式等效电路模型。
The polynomial representation of the σ matrix were obtained by means of the properties of permutation matrix .
讨论了 σ-矩阵环的代数性质和σ-矩阵的结构特征 ,利用循环矩阵和排列矩阵的性质 ,得到了 σ-矩阵的多项式表示 ,最后求得了 σ-矩阵的所有特征值、特征向
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。
DDBGA Die Dimension Ball Grid Array
内核密度球状矩阵排列
An Approach for Achieving Large Low-Redundancy Linear Arrays
一种获取大阵元数低冗余度线阵排列的方法
cast iron consisting of graphite in a matrix of austenite.
含按奥氏体矩阵排列的石墨的铸铁。
Any of the terms in the rectangular array of terms that constitute a matrix or determinant.
行列中的一项长方形排列术语中的阵成行列式
Array of time server addresses, by preference
按首选项排序的时间服务器地址阵列
The terracotta warriors were arranged in a big, orderly arrayed combat formation.
这是一个排列有序的大型的军事方阵，
Study of the Number and Arrangment of Smart Antenna Array;
智能天线的天线个数及阵列排布研究
A rectangular arrangement of quantities in rows and columns, as in a matrix.
数组量数横为行，纵为列的矩形排列，如矩阵中
Electrospinning well-aligned fiber arrays through a modified collector
静电纺定向排列纳米纤维阵列的研究(英文)
An Approach to Topology Design of 2D Sparse Arrays for Synthetic Aperture Interferometric Radiometer
综合孔径辐射计二维稀疏天线阵列排列方法
A rectangular array of elements, arranged in rows and columns, that may be manipulated according to the rules of matrix algebra.
由横排成行、纵排成列的元素组成的一种矩形阵列，可按矩阵代数规则对其进行运算。
Effects of Quantity and Arrangement of Elements on the Acoustic Field of Multi-elements Shock Wave Generator
阵元数量和排列方式对多阵元激波发生器声场的影响
Research on Two Dimensional Near Hexagonal Close-Packed Optical Fiber Array Coupling for Parallel Optical Interconnects;
二维准六角密排光纤阵列并行光互连耦合研究
An 8×8 Rearrangeable Nonblocking SOI Thermo-optic Waveguide Switch Matrix
8×8重排无阻塞型SOI热光波导开关阵列
Analysis of Sound Field Characteristics of Row Tube Based on Sonic Soot Cleaning
基于声波除灰的单排管阵列声场特性分析
If you string together several matrices and get unexpected results, look closely at the order.
如果你排列了几个矩阵在一起，但是得到了并不期待的结果，请仔细的看看排列的顺序。
A physical arrangement of elements;("a bit pattern";"a dot-matrix pattern";"a storage pattern").
元素的一种物理排列,例如二进制位模式、点矩阵模式、存储模式。
An array of wave probes can be used as a directional antenna.
排成阵列的测波仪，可作为波浪传播方向的感触器。
