In this paper, we propose the Two-Echelon Location-Routing Problem with Fuzzy Demand (2E-LRP-FD) of the " county-township-village" e-commerce logistics network. Firstly, a bi-objective model of profit maximization of logistics enterprises considering government subsidies and carbon emissions...

Nanosized titanium oxide powder was prepared via the sol–gel process and characterized by transmission electron microscope. The effects of nano-TiO2 on combustion characteristics of lignite, desulfurization in combustion and the properties of ashes were investigated. The calorific value of...