Strict production discipline by OPEC and its partners is the #1 reason why oil prices have managed to stage a remarkable recovery and stay relatively high after plunging to historical lows in 2020. Early this month, oil prices reacted positively after OP...

Nano boron nitirde nanoparticle has specific optical, electrical, magnetic, thermal, acoustic, mechanical, chemical and biological properties, and are widely used in industrial and civilian fields. The continuous development of Nano boron nitirde nanopar...