为保障地铁项目的可持续发展,从有形和无形效益2方面研究民生视角下地铁项目的社会效益。结合文献分析及专家社会调查,构建地铁项目社会效益评价指标体系;采用熵权-决策试验和评价试验(decision-making trial and evaluation laboratory...为保障地铁项目的可持续发展,从有形和无形效益2方面研究民生视角下地铁项目的社会效益。结合文献分析及专家社会调查,构建地铁项目社会效益评价指标体系;采用熵权-决策试验和评价试验(decision-making trial and evaluation laboratory,DEMATEL)法分别确定各指标的客观权重和主观权重,并将熵权法和DEMATEL法相结合确定组合权重;以青岛地铁13号线为例,采用模糊综合评价法评价其社会效益,验证评价方法的可行性。研究表明:90.43%的受访者对地铁带来的社会效益呈满意态度,地铁开通对节能降碳等有形效益具有显著作用,对宜居、宜业、宜游等无形效益具有贡献作用。展开更多
We have developed approximate Riemann solvers for ideal MHD equations based on a relaxation approach in [4], [5]. These lead to entropy consistent solutions with good properties like guaranteed positive density. We de...We have developed approximate Riemann solvers for ideal MHD equations based on a relaxation approach in [4], [5]. These lead to entropy consistent solutions with good properties like guaranteed positive density. We describe the extension to higher order and multiple space dimensions. Finally we show our implementation of all this into the astrophysics code FLASH.展开更多
文摘为保障地铁项目的可持续发展,从有形和无形效益2方面研究民生视角下地铁项目的社会效益。结合文献分析及专家社会调查,构建地铁项目社会效益评价指标体系;采用熵权-决策试验和评价试验(decision-making trial and evaluation laboratory,DEMATEL)法分别确定各指标的客观权重和主观权重,并将熵权法和DEMATEL法相结合确定组合权重;以青岛地铁13号线为例,采用模糊综合评价法评价其社会效益,验证评价方法的可行性。研究表明:90.43%的受访者对地铁带来的社会效益呈满意态度,地铁开通对节能降碳等有形效益具有显著作用,对宜居、宜业、宜游等无形效益具有贡献作用。
文摘We have developed approximate Riemann solvers for ideal MHD equations based on a relaxation approach in [4], [5]. These lead to entropy consistent solutions with good properties like guaranteed positive density. We describe the extension to higher order and multiple space dimensions. Finally we show our implementation of all this into the astrophysics code FLASH.
