Using the US-China trade war as a quasi-natural experiment, we investigate how downstream firm shrinkage affects upstream firm employment from the perspective of supply chain transmission effects with a difference-in-differences (DID) design. We reveal a significant negative impact of downstream...

The creative proposal of ducted fuel injection (DFI) in the application of heavy-duty diesel engines is to improve the quality of gas-fuel mixture in the combustion zone. The present research employed experimental and simulation methods to investigate the impact of the roughness of the inner...