Electrical Engineering, Applied Superconductivity
Supervisor for 3B4: "Electrical Drive System"
Demonstrator for "Electrical Transformer"
(1) Multi-Physics modelling for HTS
(2) HTS Flux Pump
(3) HTS magnet
 J. Ma. J. Geng, W. K. Chan, J. Schwartz, T. A. Coombs. (2020) A temperature-dependent multilayer model for direct current carrying HTS coated-conductors under perpendicular AC magnetic fields. Superconductor Science and Technology.
 J. Ma, et al. (2020) Impact of the Stabilizer Layer on the Direct Current Carrying HTS Coated Conductors under Perpendicular AC Magnetic Fields. IEEE Transactions on Applied Superconductivity.
 J. Gawith, J. Ma, et al. (2019) An HTS power switch using YBCO thin film controlled by AC magnetic field. Superconductor Science and Technology, 32(9), p.095007.
 J. Ma, J. Geng, J. Gawith, and T. A. Coombs. (2019) "High-temperature superconducting (HTS) transformer-rectifier flux pump for powering no-insulation superconducting magnet with low characteristic resistance." Physica C: Superconductivity and its Applications, 560, 1-6.
 J. Ma, et al. (2019) Rotating Permanent Magnets Based Flux Pump for HTS No-Insulation Coil. IEEE Transactions on Applied Superconductivity, 29 (5): 1-6.
 J. Ma, J. Geng, and T. A. Coombs. (2017) Flux pumping for non-insulated and metal-insulated HTS coils. Superconductor Science and Technology, 31(1), 015018.
 J. Ma, et al. (2016) Axial tension and overcurrent study on a type of mass-producible joint for ReBCO coated conductors. IEEE Transactions on Applied Superconductivity, 26(4), 1-5.
 J. Ma, et al. (2016) Experimental and Numerical Study of a DC Induction Heater Prototype With an Adjustable Air Gap Structure. IEEE Transactions on Applied Superconductivity, 26(4), 1-5.8
Department role and responsibilities