查询词典 derivative

A new fuzzy logic based hybrid on-line minimum input power search control strategy is proposed. The gains derivative method of this strategy utilizes the research results of loss model control to do on-line scaling factor calculation. The asymmetric shape design of membership functions can make the control system converge fast with avoiding the oscillation around the optimal flux.

基于损耗模型控制的研究成果以及在线搜索控制的研究成果，提出了一种新型混合在线式直流最小功率模糊搜索效率优化控制算法，算法对模糊集合所作的不对称隶属度函数设计，解决了系统在效率最优点处的振荡问题。

Three different numerical iterative algorithms are developed and the accuracy and stabilities of them are compared. Tension and compression instabilities are studied and effects of Conservative Smoothing Approach and artificial viscosity on stabilities are discussed. Based on Taylor series expansion, Modified SPH method is proposed. The discrete forms of the function and its first derivative estimations of the kernel function are deduced in both one and two dimensional space.

讨论了三种不同的数值迭代算法对计算精度和稳定性的影响；分析了不稳定性产生的根源，包括拉伸不稳定和压缩不稳定，探讨了保守光滑算法和人为粘性对稳定性的影响；在Taylor展开的基础上提出了一种修正的SPH方法，并推导一维和二维情形下函数的核估计和函数的一阶导数核估计的离散形式，结果表明，二维情形下MSPH方法可以很好的改善边界粒子的计算精度。

The last one is to study the relation between the discrect process and the iteration theory for some derivative equations(for example,equations with conservation law) and to make benefit analysis of methods.

结合具体问题的数值求解，探求迭代理论和实际离散方法的有机结合，研究算法的效益分析。

Which make it more expedient to study general character of function defined on open interval by means of derivative.

使得利用导数研究开区间上函数的整体性态更为方便。

Let be a function whose st derivative exists for each in an open interval containing.

如果函数在含有的某个开区间内具有直到阶导数，则对任意，有

The author in this paper tries to explore the derivative of the idea of American law and its particularity : the idea of modern American property law has been evolving based on the mechanistic-atomism ideological Paradigm which was brought about by the criticism of scientific revolution of 17th century towards organicism in ancient and middle ages , which emphasizes the ascendancy of individual interest .

在近代科学革命和文化思想模式变革的大背景下，考察近代美国财产法理念的衍生及其特质：近代美国财产法理念是建立在17世纪科学革命对古代和中世纪有机论的批判中产生的机械－原子论主导思想模式基础上的，因而强调个人利益的支配地位。

The author in this paper tries to explore the derivative of the idea of American law and its particularity:the idea of modem American property law has been evolving based on the mechanistic—atomism ideological Paradigm which was brought about by the criticism of scientific revolution of 17th century towards organicism in ancient and middle ages,which emphasizes the ascendancy of individual interest.

在近代科学革命和文化思想模式变革的大背景下，考察近代美国财产法理念的衍生及其特质：近代美国财产法理念是建立在17世纪科学革命对古代和中世纪有机论的批判中产生的机械一原子论主导思想模式基础上的，因而强调个人利益的支配地位。

By means of estimates for three-dimensional discrete derivative Green's function , the theory of the interpolation operator of projection type and the technique of cancellation of elements, for several usual elements in the three-dimensional setting, including rectangular parallelepiped elements, tetrahedr.

借助三维离散导数Green函数的估计，投影型插值算子理论和单元合并技术，本文详细讨论了几种常用三维单元(包括长方体元，四面体元和三棱柱元)的有限元解梯度的最大模超逼近，均获得了高精度的超逼近结果。

Similarly, the partial derivative of with respect to at ,and is denoted by

类似地，在关于的偏导数，记作，由

It is difficult to get partial derivative in least square fitting method,and the problem was avoided by usi...

利用遗传算法实现了产出曲线的自动拟合，避免了最小二乘法中求偏导数困难的问题，提高了求解的速度和精度。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。