The comparisons between the simulated results of two models and experiments show that double ellipsoidal model is better than Gaussian model on three-dimensional analysis.
两种模型的仿真结果与工艺试验结果比较表明，双椭球形热源模型比高斯热源模型更适合双丝焊的三维有限元分析。
This paper gives a necessary condition for the admissibility of a nonnegative, quadratic estimator for error variance in linear model with respect to restricted ellipsoidal parameter space.
本文给出了线性模型中椭球约束下，误差方差非负二次估计可容许的一个必要条件。
The numerical model is applied to simulate the random packing of mono-sized and binary mixtures of ellipsoidal particles.
利用本文开发的数值模型模拟单一粒径和双粒径混合椭球粒子的随机堆积过程。
This paper makes a comprehensive and systematic study of the establishment of the earth's ellipsoidal gravity model and the solution of the boundary value problem under ellipsoidal boundary.
本文全面、系统的研究了地球重力场椭球谐模型的建立和边值问题在椭球界面下的求解情况。
The arithmetic of hit probability model of ellipsoidal target single firing was researched, a series formulas was put forward, and the mathematics certification was deduced in detail.
研究了椭球目标单发命中概率的计算方法，得到了类似于椭圆目标的一系列计算公式，并详细给出了数学证明的推导过程。
The utility model is capable of fully using wind energy to improve the energy conversion efficiency because the wind wings are in semi-ellipsoidal shapes.
本实用新型的 风翼为半椭球性，可以充分利用风能，提高能量转换效率。
The temperature field and residual stress field were obtained by using 3-D double-ellipsoidal heat source model to simulate welded process.
在模型中运用移动的三维双椭球体热源作为输入热源来模拟焊接过程，最终获得了焊接温度场和残余应力场。
The temperature field and residual stress field were obtained by using 3-D double-ellipsoidal heat source model to simulate welded process.
在模型中运用移动的三维双椭球体热源作为输入热源来模拟焊接过程，最终获得了焊接温度场和残余应力场。
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