In this report, a novel magnetic levitated bearing suitable for Vertical Axis Wind Turbines (VAWT) is introduced, fabricated and tested. The bearing system generates a magnetic force, which can support the weight of the wind turbine rotor. A Finite Element Method (FEM) simulation shows how low...

We recently conducted an overall survey of individual (private) industry and commerce in Beijing. The survey was done in three stages. The first involved determining the aim, scale, and method of our survey. On this point, we came to the conclusion that the self-employed sector, an important...