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Guangtong Ma
Researcher at Southwest Jiaotong University
Publications - 173
Citations - 1682
Guangtong Ma is an academic researcher from Southwest Jiaotong University. The author has contributed to research in topics: Levitation & Magnet. The author has an hindex of 17, co-authored 151 publications receiving 1205 citations. Previous affiliations of Guangtong Ma include Chengdu University of Technology.
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Cloaking the Static Magnetic Fields by Alternate Superconductor–Ferromagnet Heterostructure
TL;DR: In this article, a cylindrical multilayer cloak wound by an alternate SC-FM heterostructure that consists of a coated superconductor and a 1Cr17 ferromagnetic alloy was designed and built.
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Effect of AC Magnetic Field on the Levitation Force of YBCO Bulk above NdFeB Guideway
TL;DR: In this paper, the influence of nonuniformity on the levitation performance of the HTS bulk was investigated by using an electromagnet supplied by AC current to simulate the non-uniformness of the external magnetic field.
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Wireless Power Supply for HTS Magnets: Circuit Topology Design and Cryogenic Testing
TL;DR: In this paper, an analytical circuit topology design for wireless power transfer (WPT) coupler and a cryogenic rectifier is proposed for charging HTS magnet without electrical contact, which can get rid of current leads through ambient temperature to liquid nitrogen temperature.
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Operation and Improvement of Liquid Nitrogen Pumps with Radial High- Temperature Superconductor Bearings
Q. X. Lin,Q. X. Lin,Donghui Jiang,Zigang Deng,Guangtong Ma,Jun Zheng,W. J. Wang,Dong Ik Shin,X. Gu,Lin Ning,M. L. Shao,M. L. Shao +11 more
TL;DR: In this article, two types of liquid nitrogen pump with radial HTS bearings are proposed, and their characteristics are analyzed: the pump with a permanent magnet (PM) coupling has lower heat leakage, whereas the pump using a long hollow pipe coupling can solve the force creep problem of the HTS bearing.
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Numerical Investigation of the Lateral Movement Influence on the Levitation Force of the Bulk HTS Based on a 3-D Model
TL;DR: In this article, the characteristics of the levitation force (LF) of a bulk high-Tc superconductor (HTS) under continuous lateral movement was numerically investigated and the functional rule of the influencing factors, such as field-cooling height, levitation height, maximum lateral displacement (MLD), and material property, was demonstrated.