1) large scale seed production
规模制种
1.
The causes of low-yield in large scale seed production in Jiangsu for two-line hybrid rice Peiliangyou3076 were discussed and the corresponding technical countermeasures were put forward.
论述了两系杂交水稻培两优3076在江苏省规模制种产量不高的原因和相应的技术对策。
2) The technique of large-scale producing seed
规模化制种技术
3) population size dependent contact rate
种群规模制约接触率
4) population size
种群规模
1.
Focusing on the problems existing in some genetic algorithms that population size is difficult to estimate or compute,a genetic algorithm with varying population size based on generational gap information(SAVPGA) is proposed.
针对遗传算法种群规模难以估计的问题,提出了一种基于代沟信息的可变种群规模遗传算法。
2.
In the view of the population size and individuals space, the factors that affect the performance of genetic operator were analyzed.
从种群规模和个体空间的角度分析了影响遗传算子性能的因素,在遗传算法(GA)的基础上设计了一种搜索区域可变、群体规模可变的最优家族遗传算法(OFGA)。
3.
Secondly,an adaptive adjustment method of the population size is given based on the search areas measure and the search granularity.
首先,依据各种群最优个体的分布给出搜索区域动态变化的条件和策略;其次,基于搜索区域的测度和搜索粒度给出种群规模自适应调整方法;再次,从搜索区域的测度和种群规模等角度定量分析算法的性能;最后,通过两个典型函数优化验证算法的有效性。
补充资料：规模经济/规模不经济
规模经济/规模不经济：规模经济和规模不经济用来说明厂商产量变动从而规模变动与成本之间的关系。对于一个生产厂商而言，如果产量扩大一倍，而厂商的生产成本的增加低于一倍，则称厂商的生产存在着规模经济；如果产量增加一倍，而成本的增加大于一倍，则生产存在着规模不经济。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条