Abstract: Polarization direction indicator (PDI) by vortex retarder has been proved to be a powerful tool in polarization direction measurement. It features on one-shot, nonmechanical motion and ...

There’s a long list of highly functional (and durable) semi-auto shotguns that handle beautifully and shoot straight, but have never received the fanfare they deserved. Some weren’t brought to market ...

Abstract: Trucks have the problems of frequent braking and long-term braking during long-slope transportation. As the temperature of the traditional eddy current retarder is as high as 500 °C during ...