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Jun Ma
Jun Ma
Lecturer (Assistant Professor) in Electrical Machines, University of Bristol
Verificeret mail på bristol.ac.uk - Startside
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Power dissipation in HTS coated conductor coils under the simultaneous action of AC and DC currents and fields
B Shen, C Li, J Geng, X Zhang, J Gawith, J Ma, Y Liu, F Grilli, TA Coombs
Superconductor Science and Technology 31 (7), 075005, 2018
992018
Investigation and comparison of AC losses on stabilizer-free and copper stabilizer HTS tapes
B Shen, J Li, J Geng, L Fu, X Zhang, C Li, H Zhang, Q Dong, J Ma, ...
Physica C: Superconductivity and its applications 541, 40-44, 2017
682017
A temperature-dependent multilayer model for direct current carrying HTS coated-conductors under perpendicular AC magnetic fields
J Ma, J Geng, WK Chan, J Schwartz, T Coombs
Superconductor Science and Technology 33 (4), 045007, 2020
582020
A kilo-ampere level HTS flux pump
J Geng, T Painter, P Long, J Gawith, J Yang, J Ma, Q Dong, B Shen, C Li, ...
Superconductor Science and Technology 32 (7), 074004, 2019
552019
Study of Critical Current and n-Values of 2G HTS Tapes: Their Magnetic Field-Angular Dependence
X Zhang, Z Zhong, J Geng, B Shen, J Ma, C Li, H Zhang, Q Dong, ...
Journal of Superconductivity and Novel Magnetism 31, 3847-3854, 2018
522018
Flux pumping for non-insulated and metal-insulated HTS coils
J Ma, J Geng, TA Coombs
Superconductor Science and Technology 31 (1), 015018, 2017
462017
Investigation on power dissipation in the saturated iron-core superconducting fault current limiter
B Shen, C Li, J Geng, Q Dong, J Ma, J Gawith, K Zhang, J Yang, X Li, ...
IEEE Transactions on Applied Superconductivity 29 (2), 1-5, 2018
452018
Design for a persistent current switch controlled by alternating current magnetic field
C Li, J Geng, J Gawith, B Shen, X Zhang, H Zhang, J Ma, TA Coombs
IEEE Transactions on Applied Superconductivity 28 (4), 1-5, 2018
382018
Rotating permanent magnets based flux pump for HTS no-insulation coil
J Ma, J Geng, J Gawith, H Zhang, C Li, B Shen, Q Dong, J Yang, J Chen, ...
IEEE Transactions on Applied Superconductivity 29 (5), 1-6, 2019
342019
Optimization study on the magnetic field of superconducting Halbach Array magnet
B Shen, J Geng, C Li, X Zhang, L Fu, H Zhang, J Ma, TA Coombs
Physica C: Superconductivity and its applications 538, 46-51, 2017
292017
Investigation on the transformer-rectifier flux pump for high field magnets
C Li, J Geng, B Shen, J Ma, J Gawith, TA Coombs
IEEE Transactions on Applied Superconductivity 29 (5), 1-5, 2019
282019
Persistent current switch for HTS superconducting magnets: Design, control strategy, and test results
C Li, J Geng, B Shen, X Li, J Gawith, J Ma, J Yang, TA Coombs
IEEE Transactions on Applied Superconductivity 29 (2), 1-4, 2018
272018
A half-bridge HTS transformer–rectifier flux pump with two AC field-controlled switches
JDD Gawith, J Geng, C Li, B Shen, X Zhang, J Ma, TA Coombs
Superconductor Science and Technology 31 (8), 085002, 2018
272018
Impact of stabilizer layers on the thermal-electromagnetic characteristics of direct current carrying HTS coated conductors under perpendicular AC magnetic fields
J Ma, J Geng, W Chan, J Gawith, C Li, B Shen, Y Öztürk, J Yang, J Hu, ...
IEEE Transactions on Applied Superconductivity 30 (4), 1-6, 2020
222020
High-temperature superconducting (HTS) transformer-rectifier flux pump for powering no-insulation superconducting magnet with low characteristic resistance
J Ma, J Geng, J Gawith, T Coombs
Physica C: Superconductivity and its applications 560, 1-6, 2019
222019
A HTS flux pump simulation methodology based on the electrical circuit
C Li, J Yang, B Shen, J Ma, J Gawith, Y Öztürk, J Geng, TA Coombs
IEEE Transactions on Applied Superconductivity 30 (4), 1-5, 2020
212020
Conceptual design and optimisation of HTS Roebel tapes
L Hao, B Shen, J Ma, J Yang, I Patel, J Hu, M Tian, H Wei, A Shah, ...
IEEE Transactions on Applied Superconductivity 32 (4), 1-5, 2022
202022
Development of an HTS magnet for ultra-compact MRI system: Optimization using genetic algorithm (GA) method
B Shen, Y Öztürk, W Wu, L Lu, J Sheng, Z Huang, Y Zhai, Y Yuan, ...
IEEE Transactions on Applied Superconductivity 30 (4), 1-5, 2020
202020
Power dissipation in the HTS coated conductor tapes and coils under the action of different oscillating currents and fields
B Shen, C Li, J Geng, Q Dong, J Ma, J Gawith, K Zhang, Z Li, J Chen, ...
IEEE Transactions on Applied Superconductivity 29 (5), 1-5, 2019
202019
Current status in building a compact and mobile HTS MRI instrument
Y Öztürk, B Shen, R Williams, J Gawith, J Yang, J Ma, A Carpenter, ...
IEEE Transactions on Applied Superconductivity 31 (5), 1-5, 2021
192021
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