Zobrazeno 1 - 10
of 210
pro vyhledávání: '"Dong Woo Ha"'
Design and Analysis of Cryogenic Cooling System for Electric Propulsion System Using Liquid Hydrogen
Publikováno v:
Energies, Vol 16, Iss 1, p 527 (2023)
As the demand for eco-friendly energy increases, hydrogen energy and liquid hydrogen storage technologies are being developed as an alternative. Hydrogen has a lower liquefaction point and higher thermal conductivity than nitrogen or neon used in gen
Externí odkaz:
https://doaj.org/article/b75b292569c0476f93ef4d5a4aa24f78
Removal of Cationic and Anionic Heavy Metal Ions From Aqueous Phase by a HGMS and Magnetized Zeolite
Publikováno v:
IEEE Transactions on Applied Superconductivity. 33:1-4
Autor:
Jong Wook Lee, Gwang Ha Kim, Joong Keun Kim, Chul Hong Park, Byeong Gu Song, Dong Hun Shin, Dong Woo Ha, Geun Am Song
Publikováno v:
The Korean Journal of Gastroenterology, Vol 67, Iss 5, Pp 253-256 (2016)
Fibrovascular polyps are rare benign intraluminal tumors that usually arise from the cervical esophagus. These often present as very large sized pedunculated polyps and cause symptoms including dysphagia and respiratory distress. Generally, large pol
Externí odkaz:
https://doaj.org/article/8d7762c8eeaf4e0e8155af9189e444f1
Publikováno v:
IEEE Transactions on Applied Superconductivity. 31:1-4
A selective removal of certain ions from aqueous phase containing common ions is very useful in engineering aspect because the process allows removal of toxic substances only or recovery of valuable ion species. The ion imprinting technology has show
Publikováno v:
Physica C: Superconductivity and its Applications. 553:52-55
The effect of deposition rate on the superconducting properties in the manufacturing process of SmBCO superconducting thin films was investigated. The superconducting layer was deposited using the EDDC (Evaporation using Drum in Dual Chambers) deposi
Autor:
Sejun Yoon, M. S. Seo, Younjung Jo, Myeong-jun Oh, Ho-Sup Kim, S. Y. Park, Jongmin Lee, Sanghan Lee, Sehun Seo, Dong-Woo Ha
Publikováno v:
Cryogenics. 92:1-4
Static high critical current densities ( J c ) > 1 MA/cm 2 with magnetic field parallel or perpendicular to c -axis were realized in Co-doped/undoped multilayerd BaFe 2 As 2 films. We made a current bridge by FIB to allow precise measurements, and co
Publikováno v:
IEEE Transactions on Applied Superconductivity. 28:1-5
In this paper, we propose an improved wire structure that easily causes current bypass when the vanadium (III) oxide (V2O3) material is applied turn-to-turn in 2G HTS no-insulation coils. A characteristic of the V 2O3 material is that when a quench c
Autor:
Ho Min Kim, Heui Joo Park, Doohun Kim, Seog-Whan Kim, Dong-Gyun Ahn, Jin Hur, SeokBeom Kim, Dong-Woo Ha, Jung-Pyo Hong, Hyung-Wook Kim, Young-Sik Jo, Rock-Kil Ko
Publikováno v:
IEEE Transactions on Applied Superconductivity. 28:1-4
This paper proposes an advanced method to satisfy both the stability and charging/discharging time constant requirements of second generation high-temperature superconductor (2G HTS) magnets. This novel method entails installing metal–insulator tra
Publikováno v:
Physica C: Superconductivity and its Applications. 545:38-42
Sm1+xBa2Cu3+yO7−d (SmBCO)-coated conductors containing pinning centers were prepared by a reactive co-evaporation method using the EDDC (Evaporation using Drum in Dual Chamber) deposition system. Superconducting materials based on Sm, Ba, and Cu we
Publikováno v:
Progress in Superconductivity and Cryogenics. 19:22-25
Steel slag has been considered as an industrial waste. A huge amount of slag is produced as a byproduct and the steel slag usually has been dumped in a landfill site. However the steel slag contains valuable resources such as iron, copper, manganese,