Beyond polymers: New state-of-the-art 3D micro and nanofabrication technique overcomes material limitations

Building things so small that they are smaller than the width of a human hair was previously achieved by using a method ...
IEEE

Model-Based Data-Efficient Reinforcement Learning for Active Pantograph Control in High-Speed Railways

Abstract: The active pantograph is a promising technology to suppress contact force (CF) fluctuation in pantograph–catenary systems (PCSs). Recently, the rapid development of reinforcement learning ...
IEEE

Modelling of rotary converter in electrical railway traction power-systems for stability analysis

Abstract: The central European 16.7-Hz railway grid is fed-beside by own power sources- by rotary and static converters. In context of recent low-frequency stability problems in the Scandinavia region ...