Abstract The Makhoul Dam project proposed to be established is considered one of the strategic projects in Iraq as it works insurance large quantity water spare flood seasons, increase storage capacity dams Iraq, well food security. Makhool located on Tigris River Salah al-Din Governorate, and 8 km south meeting point with Lower Zab River. lake area about 256 km2. In this research, a mathematic...

Rechargeable Zn-air batteries (ZAB) have drawn extensive attention due to their eco-friendliness and safety. However, the lack of high-performance low-cost oxygen redox reactions (OER ORR) catalysts has become one main stumbling blocks in development. Herein, we successfully fabricate a CoFe nanobubble encapsulated nitrogen-doped carbon nanocage on wood support ([email protected]/WC) via pyroly...