多项式模型

The Southwell zonal wavefront reconstruction model was applied to some terms of Zernike polynomials by numeric simulation, and the error caused by data precision of wavefront-reconstruction-matrix is studied.

采用Southwell区域法波前重构模型对泽尼克多项式的前几项进行了波前重构的数值模拟，研究了由重构矩阵存储精度原因而引起的波前重构误差。

The three order polynomial of pump's efficiency curve for different speeds was inferenced for the first time, and the mathematical model for optimal operation of pumping unit by speed control was established.

详细地研究了螺旋离心泵的变速性能。首次推导出不同转速下泵效率曲线的3次多项式方程，并建立了变速优化运行数学模型。

It is antinomy to analysis factor effects according to first and second order term index of quadratic polynomial,so this paper put forward a new method to explain and evaluate factor effect by F test based on partial regression sum of squares.

传统的二次多项式回归方程在依系数正负、大小解释各因子效应时，常出现一次项与二次项结果相互矛盾的情形，而一般的SVR模型又不具解释性；本文从偏回归分析定义出发，建立了基于SVR以F测验解释、评价各因子相对重要性的方法。

In this paper, a new approximated model for linear time-varying systems is deduced via general orthogonal polynomials expansion by basis transformation in projection space.

通过在投影空间中的基变换，导出了一种基于广义正交多项式展开的线性时变系统的新的近似模型。

This method approximates the nonlinear dynamics efficiently, which is mainly composed of friction in system, by orthogonal polynomials.

该方法利用正交多项式实现对系统中以摩擦力为主的非线性动态充分逼近与补偿，不要求任何摩擦力模型。

This method appro ximates the no nlinear dynamics efficiently, which is mainly composed of friction in system, by orthogonal polynomials.

该方法利用正交多项式实现对系统中以摩擦力为主的非线性动态充分逼近与补偿，不要求任何摩擦力模型。

The multi point-fitting criterion model is built based on n-rank polynomials and orthogonal function least squares fitting criterion.

用n次多项式与基于正交函数的最小二乘拟合法，分别建立多点拟合模型。

Using the 19-order non-linear math polynomial, and the coefficient parameters can be obtained by method of least square.

使用数学中19阶多项式非线性函数建模，模型中的参数用最小二乘法求取。

In the article , we adopt the Unrestricted Polynomial Distribution Lag model in

本文采用经济计量学中无约束多项式分布滞后模型，研究了利用

of polynomial distribution lag model was employed.

研究方法：多项式分布滞后模型和实证分析法。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。