逼近地

The algorithm of segment rational quadratic B-spline approximation to algebraic curve was discussed in detail.

详细地讨论了代数曲线的分段有理二次B样条逼近算法。

A generalized mathematical model was developed to describe the distribution of over-potential.Dimensionless variables μ and ω that characterize the polarization and influence of side electrode reaction in the system,were derived from modeling.Adomian's decomposition methodADM）was used to solve the nonlinear differential equation of the model to obtain an approximate analytical solution,which was in the form of algebraic expressions of infinite power series.By the solution,the relationship between over-potential distribution and average selectivity could be easily calculated without solving the nonlinear model time and again.

建立了描述超电势分布的普遍化数学模型，归纳出表征电极极化和副反应影响的量纲1数μ和ω，并用ADM（Adomian's decomposition method）对该非线性微分方程模型求解；所获得的逼近解代数表达式，可方便地计算不同参数下超电势分布对平均选择性的影响，而毋需反复求解模型微分方程。

With the interpolation, resulting nearly arc length parameterized curve interpolatesa set of points of original curve.

最后，两个实例表明了近似弧长参数化曲线能很好地逼近原曲线，且没有所不希望的波动。

Furthermore,a quick way of selecting related parameters and a digital simulation of active band-pass filter single or two in series are given.

但理想带通滤波器仅在理论上存在，实际设计和应用的带通滤波器只能尽可能地逼近理想的带通滤波器。

A kind of subdivision algorithm based on the way of bisection is put forward.This algorithm can subdivide curve evenly,and can get to approach better result by less subdividing.

提出一种基于对分方式的细分算法，能均匀地细分曲线，并用较少的细分次数得到对曲线较好的逼近效果。

Experiments show that this method can converge to target contour fast and exactly,and is robust to noise.

实验结果表明，该方法能够快速、准确地逼近到目标边界，并具有较强的抗噪性。

It got into shadows on the road, and lay cunningly on its back to trip him up.

那玩艺儿也钻进路上的影子里，狡猾地躺着，想绊他摔筋头，又一直跟在身后，而且越来越逼近了。

Firstly, the optimum network was determined on the degree of approximation, which made the network avoid over fitting. It was shown that the single component and multi-component pollutions were identified and quantified successfully.

首先，采用模拟的光谱数据，引入逼近度的概念确定最优网络模型，避免了网络陷入局部极小，成功地实现了单组分和多组分污染物的同时鉴别和定量分析。

In OverEasy mode, signals begin to gradually activate the 166XL's gain change circuitry as they approach the THRESHOLD reference level and they do not get fully processed in the manner defined by the RATIO control until they have passed somewhat above the THRESHOLD reference level.

在OVEREASY模式（OVEREASY按钮按下时），当输入信号逼近压缩阀值参考电平时，信号开始逐渐地被166XL增益改变电路激活，但它们不会完全地被压缩比所定义的方式去处理，直到他们已经稍微通过这个压缩阀参考电平。

An adaptive genetic algorithm in conjunction with multi-population genetic strategy, entropy-based searching technique with narrowing down space and the quasi-exact penalty function was developed to solve the optimization problem. The proposed method culd successfully balance the efficiency against precision, and close the optimal solution quickly and stability.

一个自适应的遗传算法被用于求解上述优化模型，该算法采用多种群遗传策略、信息熵控制的空间减缩搜索技术以及拟精确罚函数方法，较好地平衡了效率与精度之间的关系，从而能够快速而稳定地逼近最优解。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。