The excess of cosmic positrons observed by the HEAT experiment may be the result of Kaluza-Klein dark matter annihilating in the galactic halo. Kaluza-Klein dark...
Unit 16 Unconventional Machining Processes (Ⅱ ) 1. Laser Beam MachiningLaser beam machining (LBM)utilises the energy from the coherent light beams called laser...