There exists three practicable crude oil vacuum distillation processes and different processes have a significant impact on material and energy performances, including product yield, economic potential, heat recovery and the efficiencies of recoverable energy and recoverable exergy. Process...

As an important chemical fertilizer, urea can greatly increase crop yields, but also has negative effects on natural enemies of pests in agricultural field, such as spiders. Here we reported that urea application reduced the reproductive performance in Pardosa pseudoannulata, a dominant spider...

Purpose – The purpose of this paper is to study the evolution of Chinese industrial relations after the market reform of 1978, while basing its arguments and conclusion on analysis of the interactions of key actors in the labour arena in China. The significant phenomena in the evolution of...