Catalysts are essential to modern industry, accelerating reactions used to produce everything from fertilizers and fuels to medicines and hydrogen energy. But until now, scientists could not directly ...

Electrons can be "kicked across" solar materials at almost the fastest speed nature allows, scientists have discovered, challenging long-held theories about how solar energy systems work. The finding ...

Abstract: Based on the macro-second-order traffic flow model and the control theory, this paper describes the relationship between vehicle density, traffic flow and average vehicle speed per unit ...

Abstract: We carry out a computational study to evaluate the temperature reduction by using gas flow in hollow-core gas fiber lasers. We first use the Navier-Stokes equations to study the gas flow in ...