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A local LU factorization method was proposed to solve pressure equation for mold filling in injection molding and was compared with iterative methods.

提出了一个LU局部分解方法来求解注射充模过程的压力方程,并与其他迭代方法进行了比较。

Moreover, It's proved that if the initial point is the interior point of hypercube and steplength is confined to (0,1) when carrying out one dimension search following the direction mentioned above in order to generate next point, then any point generated by such iteration is interior point of feasible field.

在求解加辅助项模型的过程,作者找到一个很好的下降方向,并证明了只要初始点在超方体的内部选取,沿着上述的下降方向进行一维搜索时的步长限定在(0,1)范围内,那么迭代点始终保持在可行域内部。

The alternate iterative method in the nonlinear minimizing process has been presented, on the base of finite element method and the least square method.

摘 要:对混凝土框架结构的局部刚度缺损反问题进行了动力学方法研究,在采用有限元最小二乘法的基础上,提出并利用了非线性最小化过程的交错迭代法。

Based on the introduction of fractional theory , a new method of forecasting water demand is presented in this paper.

在研究有关分形理论的基础上,提出了基于分形拼贴定理和分形插值函数迭代生成过程的需水量预测新方法。

First the paper uses the five restrictions to the stereo matching process introduced by Marr and Frisby to restrict the searching area,then brings forward an advanced method to measure the comparability of point features based on Multi-Neighborhood support technology.

该算法首先使用Marr和Frisby提出的立体匹配的五大约束限定搜索区域,然后使用了多邻域支持技术对点特征相似性的评价方法进行了改进,最后引入了左/右以及上/下两种对称性测试过程和迭代技术以提高匹配的精度。

A systematic study on computing the integral curvature line on NURBS surface is presented. Discrete normal is used to simplify calculation of the second fundamental form of the surface, resulting in accelerating the Euler iteration process in solving the differential equation of curvature line. Discrete points on the curvature line are then obtained and approximated by an explicitly presented B-spline curve on the NURBS surface using singular mixed interpolation and capable of controlling the error within a given tolerance.

对NURBS曲面的曲率线的积分进行了系统的公式推导,并利用NURBS曲面的离散法向量有效地简化了曲面第二基本量的计算,加速了Euler法迭代求解曲率线微分方程的过程;在求得曲率线上的离散点集以后,应用奇异混合插值技术,在可控精度内把曲率线用显式直接表示为位于NURBS曲面上的B样条曲线。

With the use of the thin process theory, the Probability Generating Function of the IBP is obtained. An iterative algorithm, which can be used to calculate the IBP probability distribution, is presented.

用稀疏过程理论得到IBP的概率母函数,提出了一种迭代方法计算IBP的概率分布,并就突发源的等价描述进行了讨论。

Choosing the countdown length of Hamilton for the fitness function, using "evolutionary reversal" technique, we give the best path among 20 cities with MATLAB, and also make graph of the optimal value change with iteration in optimization process.

取哈密尔顿长度的倒数为适应度函数,采用"进化逆转"操作技术,运用MATLAB求解得到20个城市间的最佳路径,并做出了寻优过程中最优值随迭代的变化趋势图。

In order to improve the robust and precise in image registration,we get the Hessian matrix removed to improve LMA for searching the eight unknown parameters of two input perspective transformation images and get computational gains.

为提高图像匹配的精度和稳定性,在图像匹配过程中用消除了Hessian矩阵的LMA改进算法对两幅图像透视变换矩阵的8个未知参数进行拟合,减少了迭代的计算量。

The process of shock mechanical energy flowing into the molecule of the en-ergetic material is expounded.According to the hyperbolic type thermal conduc-tion equation,the author modifies the mathematic model describing intramolecu-lar vibrational state pumping,which was presented by D.D.

论述了冲击机械能向含能材料分子内部流动的过程,结合双曲型的热传导方程修正了国外一些学者提出的分子内部振动态泵浦的数学模型,提出了一组与他们的方程不同的非线性偏微分方程,根据方程的试探解,用迭代方法,得到了数值解。

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推荐网络例句

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸,那乌黑、忧郁的眼睛,她便会相信,他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失

But because of its youthful corporate culture—most people are hustled out of the door in their mid-40s—it had no one to send.

但是因为该公司年轻的企业文化——大多数员工在40来岁的时候都被请出公司——一时间没有好的人选。