Nitrate pollution in water threatens ecosystems and human health, yet removing it efficiently without producing harmful ...

No matter what you're screening, a cutting-edge projector will get your home movie marathons rocking with massive screen sizes and cinema-quality pictures. Here are the deepest price cuts from top ...

Rapa Nui, the indigenous name of Easter Island, bears witness to a unique cultural phenomenon. A society of Polynesian origin that settled there c. A.D. 300 established a powerful, imaginative and ...

Abstract: The design of a mine electric power system requires that power-flow studies be conducted to guarantee that all motor operating and starting loads can be met while acceptable bus voltage ...