1) extreme disturbance
极值扰动
1.
Inertia weight optimizing sPSO(wsPSO) and extreme disturbance and inertia optimizing sPSO(wtsPSO) algorithms were presented.
文章以该算法为基础,讨论了sPSO的改进方向,然后提出了惯性权值优化的简化粒子群优化算法(wsPSO)以及带极值扰动和惯性权值优化的简化粒子群优化算法(wtsPSO),并通过实验验证了改进的有效性节。
2) extreme
极值
1.
Binary implicit function Extreme Problems;
二元隐函数极值存在问题
2.
Extreme Statistics on the Application of Catastrophe Insurance;
极值统计在巨灾保险中的应用
3) extreme values
极值
1.
The rock bit diameter is calculated through determination of the extreme values with the calculation formula presented.
采用求极值来计算才轮钻头的直径,给出了牙轮钻头直径的计算公式,并分别对有移轴及无移轴牙轮钻头直径的计算进行了分析。
2.
Some methods of deciding the extreme values for the monadic functions and two-place functions were applied to decide the extreme values for the multivariate functions and then some effective methods of deciding the extreme values for the multivariate functions were presented.
将一元函数和二元函数极值的部分判别方法推广到多元函数极值的判别,提出了判定多元函数极值的几个方法。
3.
The extreme conditions for the monovariate functions were applied to the multivariate functions and then an effective method to decide the extreme values for the multivariate functions was presented.
将一元函数取极值的一阶充分条件推广到多元,提供了判定多元函数极值的1个有效方法。
4) extremum
极值
1.
Estimation of chaos system parameters by using extremum point;
基于极值点的混沌系统参数估计方法及应用
2.
Calculation on transmission ratio extremum of grab operating mechanism based on Matlab;
基于Matlab的挖掘机工作装置传动比极值的计算
3.
A Generalization and Application of The Second Sufficient Condition of Judging Extremum;
极值第二充分条件的推广及应用
5) Extreme value
极值
1.
Variation of extreme values of domestic storms and floods in 20th Century;
20世纪我国暴雨和洪水极值的变化
2.
Inter-decadal change of the rainstorm and flood extreme values in the 20th century;
20世纪暴雨和洪水极值的年代际变化
3.
Two full conditions for extreme value problem;
求解条件极值问题的两个充分条件
6) maximum
极值
1.
elliptic maximum principle and krein-Rutman theory with parabolic maximum principle and operator semigrou;
椭圆极值原理与krein-Rutman定理以及抛物极值原理与算子半群
2.
Methods The maximum principle,monotone method,bifurcation theory,the perturbation theorem for linear operators and the stability theorem for bifurcation solutions were used.
方法运用极值原理、上下解方法、分歧理论、线性算子的扰动理论和分歧解的稳定性理论进行研究。
3.
In this paper we yield a inequality of the deficiency sum of any meromorphic function and its all order derived functions, and discuss some functions whose ail derived functions deficiency sum arrives at maximum 2.
本文结合亚纯函数的导函数,得到一个更一般的亏量和不等式,并对其极值情形进行了讨论,在更广泛的条件下,证明了相应的F。
参考词条
补充资料:持续作用扰动下的稳定性
持续作用扰动下的稳定性
stability in the presence of persistently acting perturbations
持续作用扰动下的稳定性仁咖幽勺协触脚。曰盆兄of哪滋众团ya曲嗯碑由州画d.侣;yc功后”.即c几np班noc”-,。110朋益e拍即IO四,x BO3M脚日e朋,xj 初值问题 交=f(x,r),x(t。)二x。,x任R”(*)之解x。(t)(t)t。)的如下性质:对每一个。>O都有一个占>O使得对每一个适合不等式!y。一x。}<占的夕.,,以及满足以下条件的每一个映射g(x,:): a)在集合 E:={(x,t):t)t。,{x一x。(t)i<。}上g和g,都连续; b)s印(:,,)。::}夕(x,t)一f(x,t)I<吞,初值问题 乡=g(y,t),夕(t。)=夕。,夕任R”的解y。(t)对一切t)屯,有定义且满足不等式 suP}y。(t)一x。(t)}<£. r)t。 Bohi定理(B心h】t玩”~)(【11).设初值问题(,)有解x(t),t)t。,满足以下条件: 幻f和fx对某个。。在瓦。上连续; 刀)s叩。,:。4}人(x(t),t)}}<+的: 下)映射f在点(x(t),‘),t)t。,处对x可微,这个可微性对t)t。是一致的,即 s叩兴}厂(二(‘)+,,,)一f(、(。),:)+ ,》万。}y} 一人(x(t),亡)yl~0当y一,O时.这时,为使初值问题的解在持续作用的扰动下为稳定,必要与充分条件是:方程组又=厂(x,t)沿解x(t)的变分方程(粗血tiona】叹业tio璐)组的上奇异指数(见奇异指数(s泊g止汀exponents))小于零. 若f(x,t)不含t(即自治系统),而解x(t)为周期的或常值的;或者f(x,t)对t有周期而解x(0也有相同的(或可公度的)周期或者常值,则:l)Bohi定理中所陈述的一致可微性条件是多余的(它可从定理的其他条件导出);2)方程组交=f(x,t)沿解x(t)的变分方程组的上奇异指数可以有效地算出来.【补注】持续作用扰动下的稳定性也称为持续扰动下的稳定性(stab正ty Under pelsis招ni perturhatio幻)或全稳定性(total stabiljty).
说明:补充资料仅用于学习参考,请勿用于其它任何用途。