H
Haigun Lee
Researcher at Korea University
Publications - 229
Citations - 4022
Haigun Lee is an academic researcher from Korea University. The author has contributed to research in topics: Electromagnetic coil & Superconducting magnet. The author has an hindex of 30, co-authored 221 publications receiving 3375 citations. Previous affiliations of Haigun Lee include Massachusetts Institute of Technology & Seoul National University.
Papers
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Journal ArticleDOI
Turn-to-turn contact characteristics for an equivalent circuit model of no-insulation ReBCO pancake coil
Xudong Wang,Seungyong Hahn,Young-Jae Kim,Juan Bascunan,John P. Voccio,Haigun Lee,Yukikazu Iwasa +6 more
TL;DR: Experimental and analytical studies on the characteristic resistance of NI (no-insulation) ReBCO pancake coils, which are used in an equivalent circuit model to characterize 'radial as well as spiral' current paths within the NI coils, identified turn-to-turn contact resistance as a major source of the characteristic Resistance of an NI coil.
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MOF-derived CoP-nitrogen-doped carbon@NiFeP nanoflakes as an efficient and durable electrocatalyst with multiple catalytically active sites for OER, HER, ORR and rechargeable zinc-air batteries
E. Vijayakumar,S. Ramakrishnan,C. Sathiskumar,Dong Jin Yoo,Jayaraman Balamurugan,Hyun Sung Noh,Dawool Kwon,Younghoon Kim,Haigun Lee +8 more
TL;DR: In this paper, the authors developed CoP-nitrogen-doped carbon@NiFeP nanoflakes (CoP-NC@NFP), derived from MOF enriched with multiple active sites for multifunctional water splitting and zinc-air battery applications.
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Investigation of HTS Racetrack Coil Without Turn-to-Turn Insulation for Superconducting Rotating Machines
TL;DR: In this article, two HTS racetrack coils wound with GdBCO coated conductors, one without turn-to-turn insulation and the other with Nomex insulation, were characterized by charge-discharge, overcurrent and sudden discharge tests.
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Design and Experiments of Novel Hybrid Type Superconducting Fault Current Limiters
TL;DR: Novel hybrid SFCL which combines superconductor and conventional electric equipment including vacuum interrupter, power fuse and current limiting reactor and the satisfactory test results using current commutation method were possible, and further works for field tests are in the process.
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A superconducting joint for GdBa2Cu3O7−δ-coated conductors
TL;DR: Lee et al. as mentioned in this paper solved the problem of how to join two high-temperature superconducting materials together while preserving their electrical and magnetic properties using a multi-step process including partial melting of the conductor and annealing under high-pressure oxygen.