Sentences with phrase «widespread use of metal»

The process of smelting — extracting metals from their ores by heating in the presence of carbon monoxide derived from charcoal — led to more widespread use of metal in the Copper Age.

Not exact matches

Because of its widespread use as a metal degreasing agent to maintain military equipment, it has been found in the groundwater at many military and Superfund sites.

Sampling 7,000 - year - old ice cores as well as snowpack dating from 1969 through the mid-1990s, Barbante's team found that concentrations of the metals had risen almost sevenfold since the mid-1970s, when catalytic converters first came into widespread use.

Now, an international team of researchers led by Bingqing Wei, a professor of mechanical engineering at the University of Delaware and the director of the Center for Fuel Cells and Batteries, is doing work that could lay the foundation for more widespread use of lithium metal batteries that would have more capacity than the lithium ion batteries commonly used in consumer electronics today.

Future global demand for metals is expected to increase further as a result of urbanization and new infrastructure construction in developing countries, widespread use of electronics, and transitions in energy technologies [3].