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parameter expansion
相关语句
  参数展开
     A new homotopy technique based on the parameter expansion (PE-HAM) was proposed to strongly nonlinear oscillation.
     将同伦理论和参数变换技术相结合提出了一种可适用于求解强非线性动力系统响应的新方法,即PE-HAM方法(基于参数展开的同伦分析技术).
短句来源
     Starting from the shallow water equations which include convergence and divergence in the equatorial beta plane, the nonlinear approximate equations in the action of tropical zonal flow are obtained by using methods of variable substitution and small parameter expansion. The solution of solitary wave in the nonlinear equation and the form solutions of u 1, v 1 and  1 in the first order approximate equations are given.
     从有水平辐合辐散的赤道 β平面浅水方程出发 ,采用变量替换和小参数展开法 ,推导出了热带纬向气流作用下的非线性近似方程 ,给出了非线性方程孤立波解和一阶近似方程u1 、v1 、1 的形式解。
短句来源
     On tne Three Parameter Expansion Method of Superheating Temperature of Mixture of Nematic Liquid Crystal
     混合向列相液晶过热温度的三参数展开
短句来源
     In chapter 2, a new homotopy technique which is based on the parameter expansion, that is PE-HAM, is proposed firstly to study strongly nonlinear oscillations.
     第二章,将同伦理论引入非线性动力系统,提出了一种基于参数展开的新的同伦分析技术(PE-HAM)。
短句来源
     The linear stability of steady states and the existence of the travelling wave solutions are first discussed, then the small parameter expansion technique is employed to get the approximate wavefront solution and the global stability of the wavefront with c=2.0 is demonstrated by nume-rical simulations.
     讨论了方程定态的稳定性和行波解的存在性,运用小参数展开法求出近似波前解,并通过数值模拟证明波速为2.0的波是全局稳定的.
短句来源
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  参量展开
     USING THE METHOD OF LARGE PARAMETER EXPANSION TO SOLVE THE MASTER EQUATION FOR SCHLGL MODEL
     用大参量展开法解Schlgl模型的主方程
短句来源
     The solution of this problem has been made by using small parameter expansion method.
     本文用小参量展开的方法求其方程的解,并讨论干涉项对(?)
短句来源
     This paper used the method of large parameter expansion to be developed by vanKampen, to transform the master equation into Fokker-Planck equation, then tosolve it and to obtain the Probability density.
     本文用Van Kampen发展起来的大参量展开法,把主方程化成福克-普朗克方程再求解,得出概率密度。
短句来源
     The direct calculation of the error function integral in the energy interchange between the trapped fast ions and the basic plasma particles is a main characteristic of this paper. It is different from other calculations in which either a large or a small parameter expansion approximation is used.
     本文的主要特点是在捕获快离子与本底离子和电子能量交换表示式中,直接用误差函数积分进行计算,而不像以前的计算中作大参量和小参量展开近似。
短句来源
  “parameter expansion”译为未确定词的双语例句
     Application discussion about Dc parameter expansion of comprehensive mud logging.
     综合录井DC参数延伸应用探讨
短句来源
     The experimental results show that the samples with lattice parameter expansion is of high purity, the crystal structure is the same as the bulk materials, i.e. fcc, with average size about 47 nm, ranging from 20 to 70 nm, the specific surface area is 14.23 m~2/g, which is distributed uniformly in spherical chain shapes.
     结果表明 :所制得的镍纳米粉纯度高 ,晶格结构与相应的致密体相同 ,为fcc相结构 ,平均粒径为 4 7nm ,粒径范围在 2 0~ 70nm ,比表面积为14 .2 3m2 / g ,呈规则的球形链状分布 ,并发现纳米晶体的晶格常数发生膨胀。
短句来源
     The experiment results showed that the crystal structure of the samples was the same as the bulk materials and was of fcc structure,with average size being about 47 nm,ranging from 20 nm to 70 nm and the specific surface area being 14.23 m2/g, which was distributed uniformly in spherical chain shapes,and the lattice parameter expansion was found.
     结果表明 :本法所制得的镍纳米粉的晶格结构与相应的块物质相同 ,为 fcc相结构 . 平均粒径 47nm,粒径 2 0~ 70 nm,比表面积 1 4.2 3 m2 /g,呈规则的球形链状分布 ,并发现纳米晶体的晶格常数发生膨胀 .
短句来源
     Analysis on spacial distribution parameter Kuno,aggregation index I,m /parameter,expansion indexⅠσand α. β value of Chindyda flage stagnant larvae showed that this species of larvae distribute aggregatively,individual population.
     鞭角华扁叶蜂滞育期幼虫通过空间分布型参数Kuno指数、聚集指标I、m/指数、扩散型指标Iσ及α、β值分析结果,滞育期幼虫呈聚集分布、个体群。 应用空间分布型参数得抽样公式;
短句来源
     GENERAL ACOUSTICAL INVERSE SCATTERING PERTURBATION THEORIES AND METHOD OF FORMAL PARAMETER EXPANSION
     普遍声逆散射微扰论与形式参数展开法
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  parameter expansion
We propose a method of solving a plane problem for thin orthotropic plates using a parameter expansion technique.
      
In this paper we propose the PX-SAEM which is a parameter expansion version of the so-called SAEM (Stochastic Approximation version of EM).
      
A parameter expansion version of the SAEM algorithm
      
A method based on parameter expansion of shell rigidities is proposed in the case where the thickness varies slightly along the circumferential coordinate.
      
An iterative procedure using Whitham's averaged Lagrangian technique and a two-parameter expansion of the metric tensor to investigate nonlinear high-frequency gravitational waves is developed.
      
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Under the barotropic and non-divergent conditions, the barotropic instability at the discontinuous surface between the easterly and the westerly current in the tropical latitude is investigated. Conclusively, under these conditions, the perturbation at the interface is always unstable. By the method of small parameter expansion, the non-linear problem of the development of the disturbance around the interface is calculated to the second order approximation and the result shows that non-linear process induces...

Under the barotropic and non-divergent conditions, the barotropic instability at the discontinuous surface between the easterly and the westerly current in the tropical latitude is investigated. Conclusively, under these conditions, the perturbation at the interface is always unstable. By the method of small parameter expansion, the non-linear problem of the development of the disturbance around the interface is calculated to the second order approximation and the result shows that non-linear process induces harmonic waves of shorter wave length. The deformation and the growth of the disturbance around the common surface both proceed fast along with time. At the end of half a day, there is some slight deformation of the common surface, and in the neighbourhood of it only very weak closed circulation develops. But, at the end of one and half days, the interface deforms remarkably, the domain of the circulation expands to anextent of 300 kms, and the shorter wave dominates. At the same time, the cyclonic circulation in the easterly current on the north side of the common surface achieves sufficient development, and the wind velocity also intensifies notably.

在正压无辐散的条件下,讨论了东、西风不连续面上的正压不稳定性,得出:在这种情形下,东、西风界面上的扰动总是不稳定的。文中用小参数的方法,对界面附近扰动发展的非线性问题进行了计算,算到二级近似。结果表明,非线性过程引进短波长的谐波。界面的变形和扰动随时间增长较快,经过0.5天,界面有很小的变形,附近只有很弱的闭合环流;到1.5天,界面变形显著,环流范围增长达300公里,而且短波占主要部分,界面北侧东风气流中的气旋式环流进一步发展,风速也显著增强。

A superconductive tunnel junction can be represented by a simplified shunted-Josephson model driven by DC or AC current source.The model includes a shunt capacitance and an interference conductance.The solution of this problem has been made by using small parameter expansion method.The effects of the interference term on the hysteresis and the current step hights have also been discussed in this paper.

超导隧道结在直流和交流驱动下可以简化成电流分路的约瑟夫逊结模型,其中包括有关电容的项和干涉项.本文用小参量展开的方法求其方程的解,并讨论干涉项对(?)滞特性以及电流阶跃高度的影响.

In this paper,according to extented Landau——de Gennes theory of nematic liquid crystal a three parameter expansion method for calculate the superheating temperature of mixture of nematic liquid crystal has been developed.

本文提出一种三参数微扰展开方法,按照推广的向列相液晶的Landau——de Gennes理论,利用在过热温度点自由能的物理及几何特征,计算出二元混合向列相液晶过热温度的理论值。本方法同样可用于二元混合液晶相变温度的计算。

 
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