针对居住建筑设计方案的多属性决策问题,本文建立了包括建筑性能、适用因素、场地条件、环境协调和经济合理等5方面因素的居住建筑设计方案综合评价决策指标体系。为便于专家对评价指标属性进行评价和真实地表达专家评价信息,采用动态...针对居住建筑设计方案的多属性决策问题,本文建立了包括建筑性能、适用因素、场地条件、环境协调和经济合理等5方面因素的居住建筑设计方案综合评价决策指标体系。为便于专家对评价指标属性进行评价和真实地表达专家评价信息,采用动态三角模糊数对指标属性等级进行赋值与量化。其次,考虑专家知识经验主观和熵值法客观的指标赋权不同影响,采用组合权重使指标赋权更加科学,构建区间值欧氏距离和区间值灰色关联度的改进TOPSIS(technique for order preference by similarity to an ideal solution)法的居住建筑设计方案综合评价决策模型,解决了指标间重要性差异与指标间相关性的问题。最后,将综合评价决策模型对4个居住建筑设计方案的优劣进行排序,与基于满意度的建筑方案实证评价结果一致。研究结果表明:该综合评价决策模型能够合理选择最优方案,为定量研究居住建筑设计方案综合评价决策提供了新的思路。展开更多
In this paper, we describe an SIS epidemic model where both the disease transmission rate and treatment function are considered in saturated forms. The dynamical behavior of the system is analyzed. The system is custo...In this paper, we describe an SIS epidemic model where both the disease transmission rate and treatment function are considered in saturated forms. The dynamical behavior of the system is analyzed. The system is customized by considering the disease trans- mission rate and treatment control as fuzzy numbers and then fuzzy expected value of the infected individuals is determined. The fuzzy basic reproduction number is investi- gated and a threshold condition of pathogen is derived at which the system undergoes a backward bifurcation.展开更多
文摘针对居住建筑设计方案的多属性决策问题,本文建立了包括建筑性能、适用因素、场地条件、环境协调和经济合理等5方面因素的居住建筑设计方案综合评价决策指标体系。为便于专家对评价指标属性进行评价和真实地表达专家评价信息,采用动态三角模糊数对指标属性等级进行赋值与量化。其次,考虑专家知识经验主观和熵值法客观的指标赋权不同影响,采用组合权重使指标赋权更加科学,构建区间值欧氏距离和区间值灰色关联度的改进TOPSIS(technique for order preference by similarity to an ideal solution)法的居住建筑设计方案综合评价决策模型,解决了指标间重要性差异与指标间相关性的问题。最后,将综合评价决策模型对4个居住建筑设计方案的优劣进行排序,与基于满意度的建筑方案实证评价结果一致。研究结果表明:该综合评价决策模型能够合理选择最优方案,为定量研究居住建筑设计方案综合评价决策提供了新的思路。
文摘In this paper, we describe an SIS epidemic model where both the disease transmission rate and treatment function are considered in saturated forms. The dynamical behavior of the system is analyzed. The system is customized by considering the disease trans- mission rate and treatment control as fuzzy numbers and then fuzzy expected value of the infected individuals is determined. The fuzzy basic reproduction number is investi- gated and a threshold condition of pathogen is derived at which the system undergoes a backward bifurcation.