查询词典 interpolation

A new calculation method, Lagrangian interpolation, is proposed to predict the ASTM D86 data, densities and yields of naphtha and light gas oil after the adjustment of naphtha end point in the operation of FCC main fractionator.

利用拉格朗日插值法在FCC主分馏塔的汽油干点调整后，对汽油和柴油恩氏蒸馏数据、密度和流量等的相应变化进行预测。

In combination with oscillation free uniform B-spline interpolation, a pre-controlled optimal synthesis of tool-path arrangement is realized. Furthermore, the practicability and efficiency of the synthesis is verified.

2提出并实现了基于直线插补的净边界切削和基于Hermite插补的光滑过渡法的未加工边界切削二种刀具转向处理方法，完善了刀具轨迹规划。

Secondly,the one-step and multistep methods of the precise integration algorithms arederived by means of the integration of functional matrix by parts and interpolation function,and some recursion schemes suitable for precise integration are obtained.

然后，以函数矩阵的分部积分法和插值函数为工具，推导出精细积分的单步法和多步法，给出了多种精细积分的递推格式。

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。

Natural element method is a recently developed meshless method and is essentially the Galerkin method based on natural neighbour interpolation.

自然单元法是一种新兴的无网格数值计算方法，其实质是基于自然相邻插值的伽辽金法。

Likewise,the axile potential and intensity of the system were calculated by Gauss elimination method and cubic spline interpolation.Furthermore,the electronic trajectory was traced by the changing steps Runge-Kutta method,the final size of e-beam about anode was true of demand.

在此基础上，通过Gauss消元法和三次样条插值法等解得了系统对称轴上电位分布以及内部场强分布，并利用四阶Runge-Kutta法追踪了电子从阴极开始到阳极入口处的运动轨迹且得到了合适的束斑大小。

A third order ENO finite volume method for hyperbolic conservation laws on unstructured triangular mesh is introduced.In order to obtain the third order accuracy on spatial discretization,a weighted quadratic interpolation is constructed on every triangular mesh.Two point Gauss quadrature formula is also used on each edge of every triangular mesh and the third order TVD Runge-Kutta method is used for time discretization.The numerical order of convergence and the numerical result of a mesh 3 wind tunnel with one step are given.

摘 要 基于双曲型守恒律方程，对非结构三角形网格给出了一种ENO(Essentially Nonoscillatory Scheme)型有限体积格式，方法的主要思想是先对每一个三角形单元构造一个加权的二次插值多项式，而在计算交界面的流通量时采用了两点高斯积分公式以保证格式的整体精度，时间离散采用三阶TVD Runge-Kutta方法。

The semi-analytic formula was taken as an interpolation function near crack tip notch and the degree of freedom near the notch tip were transformed into a set of generalized coordinates by means of series expansion formulas of displacement field.

该方法将半解析函数作为插值函数，将缺口尖端附近的自由度通过位移场的扩展公式转化为一组广义坐标。

The spatial interpolation method which is included in spatial analysis of Geographic Information System is introduced in this paper.

本文对地理信息系统空间分析中的空间数据插值方法进行了介绍。

We decompose curvature signal with wavelet at first and then use its low frequency coefficients as new smooth curvature signal, which is used to construct a G^2 continuous piecewise rational cubic Bezier curve with (Geometric Hermite Interpolation, GHI) GHI method subsequently.

针对在逆向工程的实践中常见的轮廓线的光顺问题，给出了一种先对曲率图进行小波分解，提取其低频部分作为新的曲率图，并利用几何Hermite插值方法，生成G^2连续的分段三次有理Bézier曲线，从而重建出光顺的产品轮廓曲线的新方法。

Mr. Putin said there were signs of genocide against the Ossetian people.

普京说，有迹象表明对南奥塞梯人进行了种族清洗。

What I'm trying to say, Tristan is...

特瑞斯坦。我想说的是。