Researchers in China have isolated the effects of electronic friction, showing for the first time how the subtle drag force ...

After a century of study, physicists have theories — but they’re still not 100% sure.

Abstract: Compared to friction clutches, dog clutches have the advantages of high efficiency, small size, low cost, and large transmission torque; therefore, they are selected for use in hybrid ...

Abstract: In this article, a DD-4D double-layer orthogonal magnetic coupler with mutual inductance compensation is proposed for powering electrical equipment mounted on fixed sleeve during rotary ...