Scientists from Algeria have proposed a new accelerated aging testbed for PV modules and developed a novel acceleration law for sand erosion degradation. “Unlike existing models, our research ...

Powder is a collection of single solid particles, which in most cases may be considered a basic unit. Powder is typically comprised of solid particles, interparticle voids, as well as open and closed ...

(Reuters) - U.S. shale oil companies are pulling back on the amount of sand they use to hydraulically fracture new wells, responding to rising prices of the material that are driving up costs.