演算法

Using the domain derivative of the far-field pattern for eddy-current inverse problem with Dirichlet boundary condition,a new algorithm to recover the shape of cracks was constructed and some numerical examples were given.

运用Dirichlet边界条件下涡流检测反演的远场区域导数，构造了反演缺陷形状的一种新算法，并且给出了二维及三维的算例，数值反演的结果与实际缺陷吻合得较好。

The simulation data show that the average error of land surface temperature is below 0.5℃, and the error of emissivity in band 11~14 is below 0.007(band 11,12)and 0.006 (band 13,14), respectively.

利用辐射传输模型MODTRAN 4模拟数据进行反演及验证分析，结果表明，神经网络能够提高算法的精度和实用性，反演的地表温度平均误差为0.5 ℃，反演的发射率平均误差分别在0.007(11、12波段)和0.006(13、14波段)以下。

Preconditioned method can enhance the Chahine iterative algorithm's stability. Generally speaking, to increase the inverse size classes'number will benefit the measurement precision.

本文提出了针对独立模式高反演粒级数的平滑Chahine迭代算法以及非负平滑Projection迭代算法，明显的提高了反演精度。

Based on the principle of inversion analysis , applications of inversion analysis in welding field including material properties, heat source model, boundary conditions were introduced.

在阐述了反演分析原理的基础上，介绍了国内外焊接领域，包括材料性能，热源模型，边界条件等问题中反演分析的应用，及反演分析各种算法的原理及特点。

On the basis of systemic summary of domestic and foreign LST algorithms, 7 kinds of split-window algorithms are compared and discussed.

本文在系统总结国内外遥感反演地表温度算法的基础上，对比分析了7种分裂窗算法的反演结果。

As one kind of optimization, RAGA are simple and universal and also have the characteristic of good adaptability. The back analysis result shows the fast convergence and high efficiency of RAGA in the back analysis of concrete thermal parameters.

反演结果表明，基于实数编码的加速遗传算法在混凝土热学参数反演分析中简单通用、适应性好、且反演收敛速度快，效率高。

In order to achieve the stochastic inversion scheme, the stochastic approximation expectation maximum algorithm is introduced, the inversion at each iteration, the automatic modification of the statistical parameters to speed up the computing speed, improves accuracy and stability of the inversion.

为了实现所提出的随机反演理论，引入了随机近似最大期望算法，在反演的每次迭代后，自动修改各统计参数，加快了计算速度，提高了反演精度和稳定性。

The model based inversion methods are discussed in detail and the Monte Carlo technique, genetic algorithm and simulated annealing method are introduced in the inversion computation theories on the geodetic deformation analysis and geodynamical interpretation.

结合最优化理论讨论了基于模型的几种反演解算方法。首次将蒙特卡罗法、模拟退火算法以及遗传算法等全局最优化算法引入到大地测量形变分析和解释的反演解算理论中。

When the number of high accuracy guide stars identified is large, the QUEST algorithm has obvious superiority.According to night-sky observation, based on the guide star flag and the star- Identification information, the selection principle of attitude determination algorithm are given.

四姿态确定算法进行了改进的TRIAD算法和QUEST算法的探讨，这两种定姿算法各有千秋，在识别出的高精度导航星只有2颗的情况下，QUEST算法无法给出姿态，而改进的TRIAD算法可以进行三轴姿态的反演；但在识别出的高精度导航星多的条件下QUEST算法有明显的优势。

In this paper, the following progress has been discussed:(1) the improved conjugate gradient algorithm which combines the inversion equation;(2) the formulation for velvet gene at all directions and the approximation method of Jacobian matrics based on disturbance method;(3) the model is adjusted by analyzing the influence of damp coefficient and correction factor to inversion result ;(4) the influence of damp coefficient to the resolution of inversion is studied. to some degree, we improved the problem of "barycenter ascending shift" to electric anomalous body in 3-D resistivity inversion.

本文主要讨论了以下几个方面的内容：（1）结合反演方程式改进的共轭梯度算法；（2）基于扰动法的线源Jacobi矩阵的近似计算方法及光滑系数矩阵在各个方向上的光滑因子的计算公式；（3）通过分析阻尼系数与修改量校正量对反演结果的影响，提出了利用校正系数对模型修正量进行校正；（4）较为系统的讨论了阻尼系数λ对反演分辨能力的影响，较好的改善了三维电阻率反演中的电性异常体重心的&上漂&现象。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。