导数

A new dynamic sliding mode control law is presented for tracking control of robot manipulator.New switch function based on backstepping method is designed to transfer discontinuity to derivativeness of the control law,so that the chatterings of control can be eliminated.

针对机器人跟踪控制问题，设计了一种新型的动态滑模控制器，采用反演方法设计一种新的切换函数，将不连续项转移到了控制的一阶导数中，得到了输入的平滑性的动态滑模控制律。

Most traditional algorithms of image edge detection use gradient maximum or zero-crossing based on gray discontinuousness on edge. They are affected easily by noise.

传统的边缘检测算子大都基于边缘的灰度不连续性，利用梯度局部最大值或二阶导数过零点来检测边缘，容易受噪声干扰。

Mostly, traditional arithmetic of image edge detection distill edge using gradient maximum or zero-crossing which bases on gray discontinuousness on edge, and it is affected easily by noise.

传统的边缘检测算子大都是基于边缘的灰度不连续性利用梯度局部最大值或二阶导数过零点来检测边缘，容易受噪声干扰。

Mostly, traditional arithmetic of image edge detection distill edge using gradient maximum or zero-crossing which base on gray discontinuousness on edge.

传统的边缘检测算子大都是基于边缘的灰度不连续性利用梯度局部最大值或二阶导数过零点来检测边缘，容易受噪声干扰。

Mostly, traditional arithmetic of image edge detection distill edge using gradient maximum or zero-crossing which base on gray discontinuousness on edge. They are affected easily by noise.

传统的边缘检测算法大都是基于边缘的灰度不连续性利用梯度局部最大值或二阶导数过零点来检测边缘，容易受噪声干扰。

Some new conceptions are presented about the dissipativity theory of Ito stochastic differential systems as follows:dissipativity in module,equi-dissipativity in module and uniform dissipativity in module.

提出了有关Ito型随机微分系统耗散性理论的新概念：按模耗散、按模等度耗散和按模一致耗散，并利用Lyapunov方法，借助于Ito微分公式沿着Ito型随机微分系统的解对所构造的Lyapunov函数求导数，给出了Ito型随机微分系统有关按模耗散理论的一些代数判据，获得了与确定性常微分系统耗散性理论相对应的结论，最后的算例证明了该方法的有效性和可行性。

Methods Using LineGene fluorogenic quantitative PCR detection system to detect HBV DNA of 77 patients and second derivative maximum method and fit point method to analyze results.

用LineGene FQD33A型荧光定量PCR检测系统检测本院门诊和病房乙肝病人血清HBV DNA 77份，分别用最大二阶导数法和样点拟合法进行结果分析。

In this method,the glottal flow derivative is modelled as the Liljencrants-Fant model and the vocal tract is described as a time-varying ARX model.

此方法利用LF(Liljencrants-Fant)模型对声门波导数进行建模，而声道被描述为一个时变的ARX模型。

The algorithm uses the six-dimensional Legendre orthogonal coefficients to form a vector for describing the shape of glottal flow derivative.

该方法将声门波导数波形在6维正交勒让德坐标系中的投影构成了描述其形状的特征矢量，并采用基于GMM的概率分类加权转换算法，使每个特征矢量的转换规则可由多个类所对应的规则的线性加权组合得到，可以使转换性能得到较大的提高。

The derivative ratio of UV spectrum is used to analyze a mixture of glyoxal and glyoxalic acid.

用紫外光谱的比值导数法对乙二醛与乙醛酸的二元混合物进行分析，该方法能将乙二醛和乙醛酸重叠光谱分开并消除互相干扰，从而方便的完成两组分混合体系中各组分的测定。

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。