酿造葡萄酒也可以选用杂交葡萄。这些杂交葡萄是由两个不同种属的葡萄交叉遗传而来的。
Wine can also be made from other species of grape or from hybrids, created by the genetic crossing of two species.
此外,交叉培养实验显示舔的行为不仅仅由遗传决定,Meaney表示。
Furthermore, cross-fostering experiments show that licking behavioris not simply determined by heredity, said Meaney.
对于有时间窗的非满载VSP问题,将货运量约束和软时间窗约束转化为目标约束,建立了非满载VSP模型,设计了基于自然数编码,使用最大保留交叉、改进的反转变异等技术的遗传算法。
On the VSP with time window, while the restraints of capacity and time windows are changed into object restraints, a mathematic model is established.
GP的基本遗传算子包括选择、交叉和变异。
The basic genetic operators of GP are mutation, crossover, and selection.
进行无菌检查、细胞核型和同工酶谱分析,了解细胞遗传稳定性、外源因子污染和细胞间交叉污染情况。
The cells were tested for karyotype, sterility, contamination with exogenous agents and cross contamination, and analyzed for genetic stability by isoenzyme map.
其中遗传算子分别采用轮盘赌选择算子以及自适应的交叉和变异算子。
Wheel disk gambling selection operator, adaptive crossover and mutation operators are used as genetic operators.
遗传算法中的交叉算子最根本的作用就是要使子代继承父代的优秀基因。
The main function of cross operator in the Genetic Algorithmsis to make the offspring inherit excellent gene from the parents.
证明了一个基于图文法表示机制的遗传算法模式定理,描述了交叉和突变对模式作用的效果。
It proves a schema theorem for genetic algorithms in which representation schema is based on graph grammar. The effect of crossover and mutation on schemata is described.
传统的序号编码遗传算法(GA)使用PMX、CX和OX等特殊的交叉算子,这些算子实施起来很麻烦。
Genetic algorithms (GA) using ordinal strings must use special crossover operators such as PMX, CX and OX, which is very bother.
混合遗传算法在产生初始种群时引入启发式方法,采用自适应遗传参数和交替使用两种交叉算子;
In the HGA , heuristic algorithm is used to produced initial population , self-adaptive parameter are used in copy operator, crossover operator and mutation operator .
但是粒子群算法没有遗传操作如交叉和变异,而是根据自己的速度来决定搜索。粒子还有一个重要的特点是记忆。
But the particle swarm without the inheritance operation such as cross and variation, decided the searching according to its speed, and particle has an important memory character.
遗传运算参数中的交叉和变异概率随种群结构特征动态变化。
And the probability of crossing and aberrance would be dynamically changed with the structure of population.
通过设计粗粒度并行遗传算法和交叉、变异等算子,提高了算法的计算效率和性能。
The computing efficiency and the performance of the algorithm are improved by a designed parallel algorithm, the crossover and the mutation operators.
线搜索算子与遗传算法中的选择算子、交叉算子和变异算子共同作用,使全局搜索和局部搜索都能够很好的实现。
The multi-objective line search operator interacts with selected operator, crossover operator and mutation operator, making global searching and local searching be well actualized.
算例表明,基于排序选择法、算术交叉、均匀变异的遗传模拟退火混合算法较为有效。
The result indicates that the hybrid algorithms based on rank-based selection, arithmetic crossover and uniform mutation is more effective.
遗传重组在没有形成交叉的情况下,也可以发生。
Genetic recombination can occur without the formation of a chiasmata.
遗传重组在没有形成交叉的情况下,也可以发生。
Genetic recombination can occur without the formation of a chiasmata.
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