resin without montmorillonite, and the adsorption capacity increased along with the increasing amount of montmorillonite. The maximum adsorption capacity of quaternized chitosan/montmorillonite nanocomposite resin was 478.5 mg g −1 and the adsorption behavior could be well described by the Langmuir and Freundlich adsorption isotherm model. Therefore, this study may provide a considerable and prospective material in the field of wastewater treatment.
To improve the applicability, scientificity, and standardization of the railway technical regulation system, a comprehensive evaluation of the railway technical standard system is required to determine the next optimization direction. In light of the current state of the Chinese railway technical regulation system, this paper provides a comprehensive evaluation of the system using the fuzzy analytic hierarchy process (FAHP). It is suggested that in the future, we can improve the supervision level of the railway technical regulations by beginning with the establishment of deep integration management regulations for process flow and infrastructure.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.