Engine oil turns black from a combination of combustion byproducts, heat oxidation, and detergent additives suspending carbon particles in the fluid. Black oil is not automatically a sign of a problem ...

Abstract: In this work, a novel finite element formulation for the numerical solution of three-dimensional magnetostatic problems is presented. The formulation is derived from the classical vector ...

Air pollution causes millions of premature deaths worldwide each year, with fine particulate matter (PM2.5) identified as a ...

A new study led by researchers from the Institute of Earth Environment of the Chinese Academy of Sciences (IEECAS) and international collaborators has revealed that low-smoke solid fuels cause a two- ...

Abstract: Current network analysis algorithms often rely on search methods or centrality measures but face challenges such as 1) The solution space is large, resulting in high computational complexity ...