1)  bilevel genetic algorithms
两层遗传算法
2)  bilevel
两层
1.
For the bilevel decision problem with multiobjective, this paper discusses its decision mechanism from the decision makers preference relationship: semi-cooperation and pure independence, we show that their noninferior solution sets can be represented by using the augmented weighted Tchebycheff norm problems.
针对一类多目标两层决策问题,从上、下两层决策者之间的偏好关系出发,探讨了问题的决策机制:半合作决策机制与纯独立决策机制,说明了可以利用增广加权Tchebychef范数问题来有效地表示它们的非劣解集,据此设计辅助这类多目标两层决策问题的交互式决策方
3)  two-layer fluid
两层流体
1.
The interaction of water waves with a submerged circular cylinder in a two-layer fluid of finite depth;
有限深两层流体中水波与水平圆柱潜体的相互作用
2.
Hydrodynamic characteristics of a submerged pulsating circular cylinder in a two-layer fluid of finite depth;
两层流体中振荡水平圆柱潜体水动力特性
3.
Added mass and damping of a floating rectangular box in a two-layer fluid;
两层流体中矩形箱浮体的附加质量和阻尼系数
4)  two-layered reservoir
两层油藏
1.
The transient flow in two-layered reservoirs with weak cross-flow interlayer is investigated, including two cases, one is the flow in radical layered reservoirs with production in single zone, another is the flow in one-dimensional layered reservoirs with a producing well and a injection well in different zones.
本文研究了层间有弱渗透夹层的两层油藏中两种情形的瞬态渗流,包括单层打开的瞬态渗流和一层注入、一层采出的两层油藏的瞬态渗流。
5)  double layer commingled production
两层合采
6)  two-formation
两层分采
1.
Testing pressure technology of two-formation isolation and simultaneous pumping in well appraise in testing wells;
两层分采同抽井的测压技术及试井评价
参考词条
补充资料:数值遗传算法
分子式:
CAS号:

性质:基于自然界生物进化机制的一种全局最优化方法。在遗传算法中,被研究体系的响应曲面看作为一个群体,响应曲面上的每一个点作为群体中的一个个体,个体用多维向量或矩阵来描述,组成矩阵的和向量的参数(元素)相应于生物中组成染色体的基因。染色体用固定长度的二进制位串(bit string)表示。通过交换(染色体基因交换)、突变(改变染色体基因)等遗传操作,在参数的一定范围内进行随机搜索,不断改善数据结构,构造出不同的向量,相当于得到了被研究问题的不同的解(一个个体相当于一个解)。目标函数较优的点被保留,较差的点被淘汰,最后达到全局最优化。

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