What makes athletes mentally tough? Research points to two coaching approaches that work side by side to build psychological ...

Astronomers are rethinking one of cosmology’s biggest mysteries: dark energy. New findings show that evolving dark energy models, tied to ultra-light axion particles, may better fit the universe’s ...

Abstract: A permanent magnet (PM) brushless doubly fed electric machine is presented in this article. This machine is developed for variable-speed constant-frequency (VSCF) wind energy generation ...

Abstract: Multiple-elevation-beam synthetic aperture radar (SAR) is a concept based on digital beamforming (DBF) in elevation and simultaneous recording of the echoes of multiple transmitted pulses.

AI companies are losing money at an epic pace, and the reasons go deeper than mere profligacy. The economics of artificial intelligence have turned sharply against them, at least for now, and for ...