查询词典 inversion

As a try of application of Yao's algorithm I used it in the Pn travel time inversion and found the spatial distribution of the diagonal element values of the resolution matrix obtained after 500 iterations.

分辨矩阵对角线元素的大小和射线的疏密呈正相关关系。

A new intergrated inversion method, which combines the simulate annealing with the least square method, is developed to inverse these parameters of Dias model.

针对Dias模型参数的求取及反演解的不确定性评价，这里提出了一种模拟退火阻尼最小二乘联合反演方法。

We apply a differential evolution algorithm to study parameter inversion of two-dimensional wave equation.

利用微分进化算法进行二维波动方程参数反演的研究。

In this paper,we mainly discuss inverse problems for ellipticpartial differential equations,and parameter inversion and free boundary problemin elliptic equations have been paid much attention to many scientists for a longtime.

我们主要讨论椭圆型偏微分方程中的反问题，而在椭圆型方程的反问题中参数反演及其自由边界问题一直受到人们的关注，本文主要从事这方面研究，全文分为两部分。

Key words two-dimensional wave equation; parameter inversion; differential evolution algorithm; finite element

利用微分进化算法进行二维波动方程参数反演的研究。

The inversion of matrix can be realized by spectrum LU decomposition and direct solution.

本文结合谱法LU分解和直接解法方法的优点，提出了一种混合算法。

The indicated conclusion appears to be that we can never really know whether disembodiment is metaphysically possible, or whether necessary supervenience is the case, or whether spectrum inversion could occur.

这种indicated的结论看起来，我们永远不能真正知道'身心分离是否有形而上学的可能'，或者说'必要的随附是否就是事实'，或者说'光谱倒置是否会发生'。

It is concluded that the inversion of unknown boundary data is more effective when the Cauchy data are given more precisely and are distributed on the whole boundary more diversely.

由数值的结论，我们认为只要柯西资料给定的越准确，并且在全边界上给定的越分散，则会有越好的结果。

In chapter 3, based on the work of chapter 2, we firstly investigate the effect of the spontaneously generated coherence on gain of lasing without inversion in a closed three-levelΛ-type atomic system with Doppler broadening.

这些结论是与以前关于封闭Λ型系统中Doppler展宽对LWI增益影响的研究结果即增益(或强度随Doppler展宽值的增加而单调减小大不相同的。

Futhermore, the effect of Doppler broadening on laser without inversion is extented to another very important field of the interaction of the coherent field and atoms---the resonant fluorescence.

进一步地，本文把多普勒加宽对无反转激光的影响推广到光与物质相互作用的另一重要领域，共振荧光的研究中。

Vishnu entered a dark fourth dimensional dream that did not support his field or continued life.

毗瑟挐进入了一个第四密度的黑暗梦想，那里并不支持他的能量场或继续生命。

Leaders and decision-making persons use it to collect the data, including the information of unit work, handing in fee, oweing fee, prepaying fee,changing and afterpaying and account transfering of joining-insurance employee, and account paying of all kinds of insurances from hospitalization insurance institutions.The collected data is picked up, organized, switched and showed to user.

该子系统主要面向各级领导、决策分析人员；从各个医疗保险经办机构和定点医疗机构采集数据，包括在各个医疗保险经办机构处理的单位办公信息，单位缴费、欠费、预缴费信息，参保职工变更信息，参保职工增减变动信息，参保职工补缴信息，参保职工帐户划拨信息：包括各定点医疗机构处理的各险种帐户支出信息，各险种的统筹金支付信息等；将采集的数据提取，组织和转换，然后展示给用户。