1) Sommerfeld-Watson transformation
Sommerfeld-Watson变换
1.
In order to research phase speed and radiation attenuation,we use Sommerfeld-Watson transformation method to calculate complex wave numbers of circumference waves,compare the difference of circumference waves between the situation of a hollow cylindrical shell and a water filled cylindrical shell.
为了详细研究流体附加环绕波的相速度、辐射衰减等特性,本文采用Sommerfeld-Watson变换方法求解了内部充水无限长圆柱薄壳的表面环绕波的复波数极点,比较了圆柱壳内部充水和内部真空两种情况下被激发的表面环绕波的异同,说明了流体附加环绕波的辐射是比较强烈的。
2) Sommerfeld wire
Sommerfeld线
3) Sommerfeld number
Sommerfeld数
1.
A dimensionless Sommerfeld number was utilized to express the system synthetical parameters.
在系统分析过程中采用量纲一的Sommerfeld数来综合表示系统的主要参数,通过该参数可以很方便地分析计算系统的动力学特性及其稳定性,并给出了系统量纲一的稳定性临界曲线图。
4) Begovich&Watson
Begovich & Watson
1.
Maxwell water cut measuring model and Begovich&Watson water cut measuring model are introduced,and the differences between the two models are analyzed.
文章介绍了经典的含水率测量模型Maxwell和Begovich & Watson,分析两模型之间存在的差异,进行了室内静态试验和模拟井动态试验,静态实验近于模拟环状流,动态实验接近泡状流。
5) Sommerfeld integral
Sommerfeld积分
1.
Then the spatial domain Green's functions can be obtained by the inverse Fourier transformation,which are represented by the Sommerfeld integrals.
利用频率域中电磁场的边界条件,求出频率域分层介质的格林函数,再利用傅里叶逆变换,将格林函数变换到空间域,得到以Sommerfeld积分形式表达的解。
2.
The matrix pencil method(MPM) is extended to evaluate generalized Sommerfeld integrals (GSI) in dyadic Green’s function.
用积分方程法求解平板导体中含有裂缝的涡流场时,需要大量计算并矢格林函数中包含的广义Sommerfeld积分(generalized Sommerfeld integrals,GSI)。
3.
The kernels of generalized Sommerfeld integrals(GSI) in vector potential are approximated by a short series of exponential functions with differe.
为了根据涡流检测中积分方程法(IEM)的理想裂缝模型,用矢量磁位推导出平板导体涡流场的并矢格林函数,将复镜像法用于涡流场并矢格林函数的计算,用Prony方法对矢量磁位中广义Sommerfeld积分(GSI)的被积函数进行指数逼近,使GSI转化为有限项级数之和,加速了无穷积分的计算,提高了涡流场的求解速度和计算精度。
6) Sommerfeld integrals
Sommerfeld积分
1.
Three matrix equation groups for computing the coefficients of the Sommerfeld integrals are obtained according to the continuity condition of electric and magnetic fields across the interface between different layers, which are in correspondence with the TM wave produced by a vertical unit electric dipole and the TE or TM wave produced by a horizontal unit e.
根据层界面处电场和磁场的连续性条件得到3个确定Sommerfeld积分待定系数的矩阵方程组,分别对应于垂向单位电偶极子产生的TM波、水平方向单位电偶极子产生的TE波和TM波,这些方程组均可通过递推方法快速求解。
补充资料：[3-(aminosulfonyl)-4-chloro-N-(2.3-dihydro-2-methyl-1H-indol-1-yl)benzamide]
分子式：C16H16ClN3O3S
分子量：365.5
CAS号：26807-65-8
性质：暂无
制备方法：暂无
用途：用于轻、中度原发性高血压。
分子量：365.5
CAS号：26807-65-8
性质：暂无
制备方法：暂无
用途：用于轻、中度原发性高血压。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条