In the complex operation environment of high-speed trains, the comprehensive evaluation index systems with high scientificity and measurability have been established after the all-round analysis of various effects on comfort for high-speed train. Meanwhile, a comprehensive evaluation method on comfort for high-speed train has been built by the rough set theory and multidimensional coefficient t...

environmental monitoring and rest or at ion requires efficient access to large amounts of spatial information. the geographic information system (gis) and remotely sensed data are related to both physical and man-mad e features. in order to handle this task, the environmental scienc es section (ess) created the environmental data atlas (eda) that uses spatial keys to link all data sources to a ...

background: there is a great amount of literature concerning the effect of racial segregation on health outcomes but few papers have discussed the effect of segregation on the basis of social, demographic and economic characteristics on health. we estimated the independent effect of segregation of determinants of socioeconomic status on infant mortality in iranian population. methods: for measu...