助手标题  
全文文献 工具书 数字 学术定义 翻译助手 学术趋势 更多
查询帮助
意见反馈
   double sum 的翻译结果: 查询用时:0.173秒
图标索引 在分类学科中查询
所有学科
更多类别查询

图标索引 历史查询
 

double sum
相关语句
  相似匹配句对
     Double chin
     美女拒绝双下巴
短句来源
     It has the double functions.
     它具有双重功能:消极功能为限制原告滥诉,积极功能为通过司法生成权利。
短句来源
     The Sum of p-series
     p级数的求和
短句来源
     To the Sum of Series
     级数求和
短句来源
     When F wave was canceled by double stimulation, H reflex was recorded clearly with average and sum.
     利用平均叠加技术,在消除F波时,H反射在健康人均可清晰引出。
短句来源
查询“double sum”译词为用户自定义的双语例句

    我想查看译文中含有:的双语例句
例句
为了更好的帮助您理解掌握查询词或其译词在地道英语中的实际用法,我们为您准备了出自英文原文的大量英语例句,供您参考。
  double sum
A list of 26 new double sum-product Rogers-Ramanujan type identities are included as an Appendix.
      
We establish full asymptotic expansions for (2.1) (see Theorems 1 and 2) by introducing the Mellin-Barnes type of integral formula (3.4) for the infinite double sum (3.2).
      
Traditional probabilistic relaxation, as proposed by Rosenfeld, Hummel and Zucker, uses a support function which is a double sum over neighboring nodes and labels.
      
The expressions for Rosen-Morse Franck-Condon factors derived previously yield a double sum with alternating terms.
      
First we show that this L2 discrepancy is a generalization of the classical diaphony and can be expressed as a finite double sum.
      
更多          


This artical deduced the mathematic formulas calculating transmission losses and incremental transmission losses in the form of rectangular coordinates with the method of impedance matrix again. The deductive processes appear simpler and clearer. Because the similar hypotheses used before are introduced,double sums in the formulas (Containing incremental part)are eliminated. Thus the calculating time is shortened greatiy. Meanwhile, the articlal deducted the formulas calculating both active and reactive...

This artical deduced the mathematic formulas calculating transmission losses and incremental transmission losses in the form of rectangular coordinates with the method of impedance matrix again. The deductive processes appear simpler and clearer. Because the similar hypotheses used before are introduced,double sums in the formulas (Containing incremental part)are eliminated. Thus the calculating time is shortened greatiy. Meanwhile, the articlal deducted the formulas calculating both active and reactive incremental transmission losses.

本文以直角坐标形式对阻抗矩阵法计算网损及网损微增率的数学公式重新进行推导,使其推导过程更简单明了,并采用类似的假设消去了计算公式中含有微增率部分的双重求和项,从而大大缩短了计算时间,同时推导了有功网损微增率及无功网损微增率的计算公式。

A kind of addition formulae for the spherical wave functions is generated first by using the bicentric expansion of Green function in spherical coordinates. For an acoustic system with multiple spheres, the addition formulae permit the field expansions all referred to the center of one of the spheres, whose boundary conditions can be consequently used to study the acoustic scattering from multiple spheres easily. The two-sphere acoustic system with different boundary conditions is considered and the scattered...

A kind of addition formulae for the spherical wave functions is generated first by using the bicentric expansion of Green function in spherical coordinates. For an acoustic system with multiple spheres, the addition formulae permit the field expansions all referred to the center of one of the spheres, whose boundary conditions can be consequently used to study the acoustic scattering from multiple spheres easily. The two-sphere acoustic system with different boundary conditions is considered and the scattered field by each sphere can be obtained by solving an infinite set of two linear, complex, algebraic equations, whose coefficients are coupled through double sums in the spherical wave functions. Finally, the form functions of two spheres insonified by plane waves at arbitrary angles of incidence are calculated and the addition formulae generated are validated by comparing the corresponding numerical results with those of the existing literature.

首先利用格林函数的双中心球坐标展开式得到了一类球函数加法公式。对于多球体声学系统,可应用该加法公式将空间声场相对于每一个球体中心展开,这样可以很方便地利用每个球体的边界条件来研究多球体系统的声学散射问题。研究了两球体系统在不同边界条件下的散射声场,每个球的散射声场可通过求解由双重级数和耦合的两个无穷方程组得到。最后引入了形函数的定义,计算了两球体系统在平面波入射下的形函数,从而通过与现有文献的数值对比验证了本文理论公式的正确性。

Green Function into the half space is introduced in this paper.With Green Function we get the theoretic formula to calculate the magnetic field of watercrafts.Then,double integration is transformed into double sum through discrete methods.And finally,we get the formula in engineering to solve such calculation with great importance in practice.

文章首先通过引入半空间区域的格林函数,推导出船舶空间磁场分布的理论计算公式;然后,应用离散方法将双重积分转化为双重求和,得出了可用于船舶空间磁场工程计算的实际公式,具有实用价值。

 
图标索引 相关查询

 


 
CNKI小工具
在英文学术搜索中查有关double sum的内容
在知识搜索中查有关double sum的内容
在数字搜索中查有关double sum的内容
在概念知识元中查有关double sum的内容
在学术趋势中查有关double sum的内容
 
 

CNKI主页设CNKI翻译助手为主页 | 收藏CNKI翻译助手 | 广告服务 | 英文学术搜索
版权图标  2008 CNKI-中国知网
京ICP证040431号 互联网出版许可证 新出网证(京)字008号
北京市公安局海淀分局 备案号:110 1081725
版权图标 2008中国知网(cnki) 中国学术期刊(光盘版)电子杂志社