This book tells the story of two giants and a dwarf. The giants, Uranus and Neptune, are mostly huge balls of gas, and they ...
Lee masChalcopyrites, in particular those with a wide band gap, are fascinating materials in terms of their technological potential ...
Lee masمركز أبحاث في الطاقات المتجددة وإنتاج الطاقات الشمسية لتوليد الكهرباء ...
Lee mas