Due to the increased concern on the environmental issues, the desulfurization process in fuel is of great importance in the recent years. Herein, a series of decavanadate-based poly(ionic liquids) with different alkyl chain length were successfully designed with a facile ion exchange method, and...

Extreme performance requirements are demanding materials with functional microstructure and properties. Additive manufacturing (AM) is an efficient method to fabricate functionally graded materials (FGMs) with gradually variable composition and structures as a function of position. In this work,...

The carbon-neutral target lead to the development of low-carbon\carbon free marine fuels. Natural gas is currently one of the most competitive low-carbon fuels, but the low compression ratio used to control knock combustion limits the improvement of thermal efficiency of natural gas engines....

It's important to explore ways to integrate bus and rail transit by combining both the effects of the built environment and their competition. Using Wuhan city in China as a case study, this study develops gradient boosting decision trees(GBDTs) to examine the threshold range of built...