In a pine forest on Michigan’s Upper Peninsula, the only active nickel mine in the US is nearing the end of its life. At a time when carmakers want the metal for electric-vehicle batteries, nickel ...

Discover Hotelling's Theory, which explains how owners of nonrenewable resources decide whether to extract and sell based on future price predictions and interest rates.

Enhanced oil recovery (EOR) is a method used to extract oil beyond primary and secondary techniques. Explore different EOR ...

Demand for lithium is skyrocketing as factories across the world churn out electric vehicles and the massive batteries that make wind turbines and solar panels reliable sources of energy.

Abstract: Automatic extraction of building footprints from images is one of the vital means for obtaining building footprint data. However, due to the varied appearances, scales, and intricate ...

Abstract: Many ion sources need to work in the order of $10^{-3}$ –1-Pa pressure, so the influence of these pressures on ion extraction characteristics has been attracted attention. In this article, ...

Venezuela’s interior minister said more than 100 people were killed in the U.S. raid. The Pentagon said seven U.S. troops were injured in the Venezuela operation; five have recovered. More than 100 ...