1) Wirth-Weber precedence relation
沃思–韦伯优先关系
3) precedence relation
优先关系
1.
The blurry accordant matrix keeps away from the characteristic factor matrix while use precedence relation coefficients to describe the project,which can keep away from subjection confirming in the decision-making when there have many qualitative and quantitative factors.
模糊一致矩阵法则避开了特征因子矩阵的建立,利用优先关系系数来描述方案间的优劣,在大量定性因素与定量因素并存的决策中成功地避开了隶属度确定。
2.
The aggregative rank index and the aggregative precedence relation between the alternatives are pro.
定义了方案的集团序指标和方案的集团优先关系。
3.
The aggregative rank index and the aggregative precedence relation between the alternatives are proposed.
首先,定义了方案集的集团序,定义了方案的集团序指标和方案的集团优先关系。
4) prior relation method
优先关系
1.
Based on the fuzzy prior relation method,the article sets up a fuzzy optimum decision mathematical model of bid and appraised bid.
运用模糊优先关系比较法建立了工程建设项目的招标评标方法 ,与层次分析法相比较 ,这种方法不仅具有科学性和合理性 ,而且方法简捷使用方便 ,保证了评标的客观性与公正
2.
This paper gives a new method,using both Value Engineering(VE) method and fuzzy prior relation method.
利用模糊优先关系比较法并借鉴价值工程的思想,从功能和成本2个方面,对影响评标的多个因素进行综合评价,给出招标评标的综合评价方法。
5) priority
[英][praɪ'ɔrəti] [美][praɪ'ɔrətɪ]
优先关系
1.
The fuzzy priority comparison method can be used to quantify and sequence these complex factors to find out key factors affecting investment expansion so as to adopt necessory measures to control them.
分析了能使住宅建设项目投资膨胀的诸多因素,运用模糊优先关系比较法的数学方法,请专家将这些复杂因素的重要性进行量化并给以排序,找出重点影响投资膨胀的因素,便以采取措施加以重点控制。
2.
In this paper, the concept of dynamic priority systems is developed based on bounded P/T systems and the interleaving and the true concurrency semantics are provided for them respectively.
优先关系是并发系统控制的重要手段 ,常用于解决并发系统设计中的冲突问题 。
6) precedence relationship
优先关系
1.
ITS uses new a new neighborhood search based upon precedence relationship to obtain feasible neighborhood solutions, and uses novel crossover operator to avoid the common defects of traditional TS which is likely to trap in local optimum.
在建立有时间窗车辆路径问题数学模型的基础上,设计了一种改进禁忌搜索算法,提出基于优先关系的邻域搜索方法提高邻域可行性,使用新颖交叉算子解决传统禁忌搜索算法常见的"局部最优"问题。
2.
A directly encoding method is used and a new crossover operator based upon precedence relationship is proposed.
使用一种直观的编码方法,提出基于优先关系的交叉算子,实验表明,这种GA能够有效地解决复杂的优化问
补充资料:沃兹沃思-埃蒙斯反应
分子式:
CAS号:
性质:又称沃兹沃思-埃蒙斯反应(Wadsworth-Emmons reaction),霍纳-埃蒙斯反应(Horner Emmons reaction)。是维蒂希反应的改进。卤代烃与三烷氧基磷反应生成膦酸酯,在碱的作用下与羰基化合物反应生成烯烃。与维蒂希反应比较,碳负离子反应性高,制备方便,生成的膦酸盐易除去,有利于烯烃的提纯。常用的溶剂有二噁烷、二甲基甲酰胺、四氢呋喃等。常用的碱与维蒂希反应所用的相同。
CAS号:
性质:又称沃兹沃思-埃蒙斯反应(Wadsworth-Emmons reaction),霍纳-埃蒙斯反应(Horner Emmons reaction)。是维蒂希反应的改进。卤代烃与三烷氧基磷反应生成膦酸酯,在碱的作用下与羰基化合物反应生成烯烃。与维蒂希反应比较,碳负离子反应性高,制备方便,生成的膦酸盐易除去,有利于烯烃的提纯。常用的溶剂有二噁烷、二甲基甲酰胺、四氢呋喃等。常用的碱与维蒂希反应所用的相同。
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