查询词典 convergence

In this paper, GA is applied to solve complex shop floor scheduling problem. I have made some research in the following aspects:(1) In order to overcome the weakness of premature convergence appearing in GA, an improved genetic algorithm is proposed and applied in the flow shop scheduling problem.

本文应用遗传算法求解复杂的车间调度问题，主要在以下几个方面作了一些研究工作：(1)为了克服遗传算法容易出现提早收敛的缺陷，提出了一种改进的遗传算法，并将其应用于流水车间调度问题。

In this paper, I have made some research and innovative achievement in the following aspects:(1) In order to overcome the weakness of premature convergence and the disadvantage of local seardhing ability appearing in GA, an improved genetic algorithm which combining with Heuristic algorithm is proposed and applied in the flow shop scheduling problem.

在本论文课题的研究及应用过程中，作者做了以下主要研究工作和成果：(1)鉴于遗传算法容易出现过早收敛的问题以及局部搜索能力不强的问题，提出一种结合启发式算法改进的遗传算法，并将其运用于流水车间作业调度问题的求解。

The mountain is a foothill compared with western peaks, but it sits at the convergence of three storm tracks, along which weather systems and wind hurtle seaward.

和美国西部的山相比，这座山只是一座麓山，然而它就坐落在三条风暴路径的辐合上，天气系统与强风沿此辐合吹向大海。

The wedge feature maximum of Fourier coefficient gives the direction of every texture layer of X-ray tyre image; the algorithm will map the ring feature maximum of Fourier coefficient to the scale parameter of gabor filter, and then automatically search the refined scale and accurately direction parameters in the guide line of energy convergence.

根据这些特点，提出了一种方向Gabor滤波器参数的自动选取方法。根据楔特征人工指定纹理的大致方向，算法将环特征映射到Gabor滤波器的尺度参数，并按能量收敛原则搜索最好的尺度和纹理的准确方向。

The Dinkelbach-type algorithm for generalized fractional program whose objective function is composed of infinite fractions was generalized. Properties of a parameter program and convergence of a class of generalized algorithm were discussed.

就一类目标函数中有无限个分式的广义分式规划问题，在已有的相应的Dinkelbach型算法的基础上作了进一步的推广，使其成为一簇算法；讨论了一个参数规划的性质和该簇算法的收敛性。

We simulate numerically the far-field intensity distribution of 6 circular arranged coherent fiber lasers and estimate its power convergence based on Fraunhofer diffraction theory.

基于Fraunhofer标量衍射理论，计算了按圆周形排列的6束光纤激光相干合束的远场光强分布，并对其能量集中程度进行了讨论。

The far-field intensity distribution of 6 circular arranged coherent fiber lasers is simulated numerically and its power convergence is estimated based on Fraunhofer diffraction theory.

基于Fraunhofer标量衍射理论，计算了按圆周形排列的6束光纤激光相干合束的远场光强分布，并对其能量集中程度进行了讨论。

In Chapter 3, we study the semilocal convergence for the method appeared in Chapter 2 under Lipschitz continuous condition of the second Frechet derivative, and get the corresponding error estimation by majoriz-ing function technique. And also, an application of the theorem to a non- linear equation is given.

在第三章中，研究了复合型Newton-Steffensen迭代方法在算子的二阶导数满足Lipschitz连续条件时的半局部收敛性，并利用优函数技巧得到了其在该条件下的误差估计，最后给出了这个定理的一个应用。

Frequency curve should be smooth, no sudden jump point oscillation; response curve of the rapid convergence.

频率曲线应平稳，无突跳振荡点；响应曲线应快速收敛。

Mastery: The Z-Transform, The Region of Convergence for the Z-Transform, The Inverse Z-Transform, Properties of the Z-Transform, System Function Algebra and Block Diagram Representations.

教学内容： Z 变换； Z 变换收敛域；逆 Z 变换；由零极点图对傅立叶变换进行几何求值； Z 变换性质；几个常用 Z 变换对；利用 Z 变换分析和表征线性时不变系统；系统函数的代数属性与方框图表示；单边 Z 变换。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。