International production fragmentation has generated and reallocated value added as well as CO2 emissions across economies. Prior studies have mainly focused on the embodied emissions or value added in trade. The evidence regarding the embodied emission intensity, and particularly the role of...

In this paper, an energy level analysis model of oil transfer station system is established, which is divided into oil transfer station subsystem and pipeline network subsystem. From the perspective of the level of energy, the system is evaluated and optimized by virtue of using energy level...