曲线拟合

Accordingly, the aim of this study was to evaluate the relationship between age and LEP in healthy non-smokers.

进行如下分析：(1)对年龄和肺清除指数k做曲线拟合；(2)比较老年组和非老年组(＜60岁)的k值差异。

We present a method of circular arc fragmented curve-fittingbased on least mean-square error rule in this paper.

谭勇 ，徐守时，涂嘉文提出了一种基于最小均方误差准则的圆弧分段曲线拟合方法。

Measuring the magnetic field intensity in different areas and current:(1) The two stirrers have different magnetic field direction;(2) The two stirrers have different way of combination. Obtain the regression equation by using Origin 7.0 software.

本研究采用2台相同规格的行波磁场搅拌器，研究过程中测定了不同电流强度下：(1) 2台搅拌器采用不同磁场方向时；(2) 2台搅拌器采用不同组合方式时，搅拌区域内的磁感应强度；用Origin 7.0软件对所测数据进行了曲线拟合及回归分析，并得到回归方程。

For the floating body with complex bow and stern, the molded line reconstruction method is adopted to generate the section lines on the bow and on the stern which are necessary to construct the wetted surface, and it can raise efficiency greatly that the intersection lines of intersection structures are obtained by the way of combining modeling tool and NURBS technology; then the patch representation method is adopted in generating the mesh of wetted surface and interior free surface, and the velocity potentials on them are expressed separately, on basis of which the irregular frequency effect is dealt with in the calculation of hydrodynamic coefficients.

对于有复杂首尾结构的浮体，用型线重构的方式在首尾生成曲面构成所需要的截面线，将通用建模工具和NURBS曲线拟合相结合，生成相贯结构的相交线；然后，用分片法生成浮体湿表面及内自由面网格，并独立表达各自的速度势以处理不规则频率现象，进而进行水动力系数计算。

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 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。

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。

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。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。