拟合曲线

Key words: operators space; formula discovery; rules; data approach

关健词：算子空间；公式发现；规则；曲线拟合

The results showed that the three straight lines model could fit the soil shrinking and swelling characteristic curves well. The characteristic values of the curves were smaller than 1. This indicated that during the processes of soil swelling and shrinking, the change of the soil specific volume was smaller than that of the soil water content. Values of the geometry factors of four soils studied were equal to 1 at the beginning of shrinking, less than 3 and greater than 1 at other swelling-shrinking phases. The geometry factor values in different phases showed that soil swelling-shrinking was anisotropic and only subsidence occurred at the beginning of shrinking.

结果显示：三直线模型能够很好地拟合4种土壤的收缩、膨胀过程；土壤收缩、膨胀曲线各段的特征值均小于1，这说明土壤胀缩过程中土壤容积的变化速率小于含水量的变化速率；4种土壤胀缩过程中几何因子r大于1而小于3，且收缩初期几何因子r等于1，表明土壤的胀缩是各向异性的，并且在土壤收缩的最初阶段只有垂直收缩。

The three-dimensional electric fields of the high voltage winding of a shell type transformer arc calculated, and the insulation reliability is analyzed carefully.

还提出了运用多段规则曲线拟合的方法对大型电力变压器的高压套管均压球进行优化设计，得出了既具有了较好的工艺性又具有较好的电场强度分布的最佳的电极形状。

VI The interface between multi-body simulation system and I-DEAS is developed, and the visual simulation of self-propelled gun is fulfilled based on the I-DEAS platform. Multi-media shows of self-propelled gun are accomplished including curve simulation, texturing, lighting technology voice effect, flame effect, etc. VII Distributed real-time dynamics simulation system for virtual self-propelled gun, which is a solid basis for virtual-reality gun, is set up through LAN, based on TCP/IP protocol, OpenGL, Client/Server, Object Oriented, etc.

在3D MAX开发环境中，利用纹理、光照等技术进行了自行火炮的真实感建模，通过曲线拟合，模拟火炮各个部件在发射过程中的运动规律，并结合声音和炮口火焰效果，实现了自行火炮发射动力学的多媒体描述。7、基于TCP／IP协议、OpenGL、Client／Server、面向对象等技术，在LAN平台上建立了火炮发射动力学分布式实时仿真系统，为研究虚拟火炮打下了坚实基础。

In the acceleration plot, examine the value of "a2", the slope of the line of "best fit".

在加速度曲线中，考察&a2&的值，即最佳拟合直线的斜率。

It uses Bézier curves to fit the fruit outline, and control prism of the fruit surface by introducing a noise function which conforms to the variety characteristic.

采用Bézier曲线拟合苹果果实的轮廓，通过加入表征品种特征的扰动函数来控制果实表面的果棱。

Accounting to analyzing the data gathered from animal experiments and analyzing phase diagram, we qualitatively analyzed the equation of model, and got the eigenfunctions.

根据动物实验中采集的数据，利用相图分析方法对模型中的微分方程进行了定性分析。并利用动物实验数据，绘制其相图并拟合出特征曲线。

The wind velocity increased with the increase of height on bare sandy land under neutrosphere, but the roughness decreased with the increase of wind velocity, which was not so significant that it could be ignored.

利用曲线拟合方法研究其粗糙度结果表明：对于稳定床面来说，下垫面的状况不发生改变时，粗糙度与风速的增长呈负相关关系，但是由于两者相关程度并不显著，因此在实际工作中可以忽略风速对粗糙度的影响。

Based on a great deal of research experimentation, a new detection algorithm and flame evaluate index are presented. According to complexity of cur...

针对火焰温度场测量现有方法的复杂性，提出了利用待定系数法进行曲线拟合的新的温度场测量方法，实现了二维温度场的显示。

Study on method of curve simulation based on BP network .

基于BP网络曲线拟合方法的研究。

Lugalbanda was a god and shepherd king of Uruk where he was worshipped for over a thousand years.

Lugalbanda 是神和被崇拜了一千年多 Uruk古埃及喜克索王朝国王。

I am coming just now,' and went on perfuming himself with Hunut, then he came and sat.

我来只是现在，'歼灭战perfuming自己与胡努特，那麼，他来到和SAT 。