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In this paper, a model is developed to study the trandeoff between them under cannibalization strategy. Optimal time-to-market and duration of the overlapping stage conncerned with cannibalization rate are obtained.

文中研究了在新旧产品并存策略下新产品开发时间与产品性能之间的平衡问题,得到与成长率相关的最优产品开发时间和最优阶段重叠量。

To overcome the premature of simple genetic algorithm, the calculating efficiency of SGA is improved by the following two ways; Firstly, in order to ensure convergence of algorithm and reduce influence factor of convergence, elitist selection and adapted crossover and mutation operator are adopted. Secondly, because this study deals with finding minimize volume of structure, to quicken convergence of this problem, in line with mechanics criterion the paper carry out mutation to some genes in chromosome according to variations of internal force. This will let algorithms to search answer with our hoping directions.

针对基本遗传算法存在早熟的问题,本文主要从两个方面进行了改进,首先为了保证算法的收敛和减少影响算法收敛因素,采用了最优保护策略和自适应的交叉和变异算子;其次,由于本文研究内容涉及求结构最小体积问题,为了加快此类问题的收敛速度,本文结合结构优化中的力学准则,对个体染色体中的某一段基因按照内力变化进行变异操作,使得算法按一定方向进行搜索最优解。

The algorithm uses an efficiency and more cupidity operator to decode, it makes genetic evolution beginning from several civilization populations which has more high average fitness. It use "communism" transfer tactic which output the best individual of population to all of other population termly, to make best individual shared, and lastly make all population together evolving.

该算法采用高效的超贪心算子进行解码,使遗传进化过程从多个平均适应度较高的文明群体开始进化,并采用定期将各群体的最优个体输出给其他群体,使得最优个体共享,促进所有群体共同进化的共产主义迁移策略。

Moreover, by introducing memory function and vaccine inoculation mechanism of immune system, at the same time, DECA can converge to the optimal solution rapidly and stably.

通过改进的遗传策略来优化染色体长度,实现对聚类个数进行全局寻优,利用FCM算法加快聚类中心参数的收敛;并引入免疫系统的记忆功能和疫苗接种机理,使算法能快速稳定地收敛到最优解。

In order to accurately estimate kinetic parameters, a new method, named as eugenic evolution programming, was proposed.

为准确估计反应动力学参数,在分析确定性优化方法与进化算法特性的基础上,提出了一种由优进策略支持的进化规划方法,它将确定性寻优的两点梯度法引入随机的进化规划算法中。

By using a finite term of the optimal sequence, a feedforward and feedback suboptimal control law is obtained.

采用次优控制以避免求解最优控制律的困难不失为一个控制策略[1~3 ] 。

The index of slipping friction work is incompatible with that of shock intensity. In order to form an integrative optimization between shock intensity and slipping friction work, different gear shift control strategy have been made to find a compromise between shock intensity and slipping friction work according to different work condition of E.T.

滑磨功和冲击度这两个指标相互制约,因而为了达到综合最优,针对电动变速驱动单元不同工作状况,制定了不同的换档控制策略来达到冲击度和滑磨功协调最优。

In this thesis, the case study of K Company\'s practice reveals that freight distribution within a relative small region can reach to an optimal point by creating frontier freight distribution center and taking advantage of abundant labor resources as well as modern logistics techniques.

本文主要通过K公司的实践,通过设置前线物流分拨中心,尽可能利用我国丰富的人力资源,结合可行的现代物流技术,达到小区域局部配送最优;同时,利用小步改进,效果累积的策略,达到整体长期最优,最终展示了一种低成本,运营效果却能满足和促进企业发展需求的快速消费品同城配送方案。

Thirdly, the problems of institution investor'optimal liquidation strategy and optimal liquidation time were investigated with the conditions that the price of risky asset followed arithmetic Brown motion and liquidation velocity was limited. The problems involved the following scenes: price impact function was linear expression of liquidation velocity which was boundary closed set with an isolated point; price impact function was stochastic; price impact function was nonlinear.

接着,当风险资产的价格服从算术布朗运动,且对投资者的变现速度做出限制时,研究机构投资者的最优变现策略和最优变现时间问题,其中包括:价格冲击函数为变现速度的线性函数,变现速度是一带有孤立点的有界闭集;价格冲击是随机形式;价格冲击是变现速度的非线性函数。

An optimal power flow based learning model for two-layer medium- and long-term optimal bidding strategy is proposed.

文章提出了以最优潮流为基础的双层中长期最优竞价策略学习模型。

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Chrysanthemum of 10 thousand birthday is lax to edaphic requirement, with the arenaceous qualitative loam with fecund, good drainage had better.

万寿菊对土壤要求不严,以肥沃。排水良好的砂质壤土为好。

He unstepped the mast and furled the sail and tied it.

他拔下桅杆,把帆卷起,系住。

Therefore, positively advances the interest rate marketability reform is one of current our country finance reform important tasks.

因此,积极推进利率市场化改革是当前我国金融改革的重要任务之一。