Tác giả: Deborah Cronin

Chalcopyrite is the most abundant copper sulfide, the most recalcitrant to hydrometallurgical processing, and a good semiconductor with a wide variation in resistivity. The reactivity of chalcopyrite …

Health professionals presently recognize that the foods called functional can have a major role in health enhancement. Recently, many developments have been arising in this area. Researchers, food te …