2024
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[Oral Presentation] Beyond Jewelry: The Quantum Realm of Diamonds, Hyunmin Choi, Youngchool Kim, Jaeeun Kim, Soi Moon, Jeongwon Seok, 37th International Geological Congress 2024, Busan, Korea (2024)
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[Oral Presentation] Quantum Journey with NV Diamonds, Hyunmin Choi, Youngchool Kim, Jeongwon Seok, Soi Moon, 9th Asian Conference on Crystal Growth and Crystal Technology, Jeju, Korea (2024) p.143
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[Oral Presentation] Diamond into the Quantum World, Hyunmin Choi, Youngchool Kim, 2024 Taipei International Gem Forum and Expo, Taipei (2024)
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[Poster Presentation] 최근 보석용 다이아몬드 시장의 변화와 챌린지, 김광용, 최현민, 김영출, 석정원, 한국결정성장학회 추계학술대회, 아산 (2024)
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2023
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[Poster Presentation] Identification of Polymer-Filled Aquamarine, Youngchool Kim, Hyunmin Choi, Jeongwon Seok, 한국결정성장학회 추계학술대회, 동의대학교, 부산 (2023)
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2022
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[Oral Presentation] History of Ruby and Sapphire Heat Treatment, Youngchool Kim, Hyunmin Choi, 한국결정성장학회 추계학술대회, 전북대학교, 전주 (2022)
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[Paper] Current status of gem-quality laboratory-grown diamond, Hyunmin Choi, Youngchool Kim, Hansoo Jang, Jeongwon Seok, Journal of the Korean Crystal Growth and Crystal Technology, 32 (2022) p159.
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[Paper] 코팅된 무색 합성 모이사나이트의 특징, Characterization of Coated Colorless Synthetic Moissanite, Hyunmin Choi, Youngchool Kim, Hansoo Jang, Jeongwon Seok, Journal of the Korean Crystal Growth and Crystal Technology, 32 (2022) p7.
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[Poster Presentation] Observation of the Structure of Surface Layer of Colorless Coated Synthetic Moissanite, Hyunmin Choi, Youngchool Kim, Hansoo Jang, The 7th International Gem & Jewelry Conference (GIT2021), Chanthaburi, Thailand (2022) p.103.
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2021
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[Paper] TEM Analysis of Colorless Coated Moissanite, Hyunmin Choi, Youngchool Kim, Sunki Kim, Hansoo Jang, Gemology & Technology (NGTC conference), Beijing, China (2021) p.68.
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2020
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[Paper] ‘라이트박스’ 무색/핑크/블루 합성 다이아몬드의 분광학적 분석 Spectroscopic analysis of near colorless/pink/blue synthetic diamonds from Lightbox, Hyunmin Choi, Youngchool Kim, Minkyoung Lee, Jeongwon Seok, Journal of the Korean Crystal Growth and Crystal Technology, 30 (2020) p.21
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[Paper] Very Large TypeⅡb Natural Diamond, Hyunmin Choi, Youngchool Kim, Sunki Kim, China Gems, 1 (2020) p.110.
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2019
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[Paper] Sapphires Heated with Pressure – A Research Update, M.S. Krzemnicki, L. Cartier, R.W. Hughes, T. Leelawatanasuk, L. Kiefert, G. Choudhary, S. McClure, C. Milisenda, E. Gambini, S. Kim, D. Schwarz, C. Dunaigre, Y. Horikawa, InColor, 42 (2019) p.86.
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[Paper] 사파이어 고온저압(HT+P) 처리에 대한 긴급보고서 (2019)
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[Oral Presentation] Sapphire Heated with Pressure, LMHC et al., Gemstone Industry & Laboratory Conference (GILC), Tucson, USA (2019)
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2018
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[Paper] Sri Lankan Sapphire Enhanced by Heat with Pressure, Hyunmin Choi, Youngchool Kim, Sunki Kim, Thanong Leelawatanasuk, Thanapong Lhuaumporn, Nicharee Atsawatanapirom, Papawarin Ounorn, The Journal of the Gemmological Association of Hong Kong, 39 (2018) p.16.
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2017
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[Paper] 보석용 무색 합성 다이아몬드의 최근 동향 Recent Trends of Gem-quality Colorless Synthetic Diamonds, Hyunmin Choi, Youngchool Kim, Jeongwon Seok, Journal of the Korean Crystal Growth and Crystal Technology, 27 (2017) p.149.
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[Paper] Blue sapphire enhanced by atmosphere with graphite powder, Sunki Kim, Hyunmin Choi, Youngchool Kim, Thanong Leelawatanasuk, Thanapong Lhuaumporn, Nicharee Atsawatanapirom, Papawarin Ounorn, Gemology & Technology (NGTC conference), Beijing, China (2017)
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2015
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[Paper] 러시아의 뉴 다이아몬드 테크놀러지에서 생산된 보석용 합성 다이아몬드의 특성 Characteristics of Gem-quality Synthetic Diamond from New Diamond Technology in Russia, Hyunmin Choi, Youngchool Kim, Journal of the Korean Crystal Growth and Crystal Technology, 25 (2015) p.188.
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[Paper] Nephrite Jade from Chuncheon, Korea, Hyunmin Choi, Sunki Kim, Youngchool Kim, Gemology & Technology (NGTC conference), Beijing, China (2015)
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2013
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[Oral Presentation] Identification of Gamma-ray Irradiated Cultured Pearls, Hyunmin Choi, AGIL 2013 International Gemmological Conference, Hong Kong (2013)
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[Paper] 새롭게 표면 처리된 유색 토파즈의 특성, Properties of Colored Topaz by New Surface Treatment, Bohyun Lee, Changsik Koo, Seokju Yeon, Hyunmin Choi, Youngchool Kim, Sunhee Kim, Journal of the Korean Crystal Growth and Crystal Technology, 23 (2013) p.81.
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2012
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[Paper] Identification of Irradiated South Sea Cultured Pearls Using Electron Spin Resonance Spectroscopy, Youngchool Kim, Hyunmin Choi, Bohyun Lee, Ahmadjan Abduriyim, Gems & Gemology, 48 (2012) p.292.
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[Paper] 감마선 조사된 남양진주의 검지Ⅱ Detection of Gamma Irradiated South Sea Cultured PearlsⅡ, Hyunmin Choi, Bohyun Lee, Youngchool Kim, Journal of the Korean Crystal Growth and Crystal Technology, 22 (2012) p.165.
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[Paper] 감마선 조사된 남양진주의 검지Ⅰ Detection of Gamma Irradiated South Sea Cultured PearlsⅠ, Hyunmin Choi, Bohyun Lee, Youngchool Kim, Journal of the Korean Crystal Growth and Crystal Technology, 22 (2012) p.36.
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2011
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[Paper] Characterization of Dark Core and Blue Patch in Mong Hsu Ruby, P. Maneeratanasam, P. Wathanakul, Y.C. Kim, H.M. Choi, B.G. Choi, K.B. Shim, Journal of the Korean Crystal Growth and Crystal Technology, 21 (2011) p.55.
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2010
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[Paper] Discrimination between Natural and HPHT-treated TypeⅡa Diamonds using Photoluminescence Spectroscopy, Hyunjin Lim, Sooyoun Park, Hyeonsik Cheong, Hyunmin Choi, Youngchool Kim, Diamond & Related Materials, 19 (2010) p.1254.
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2009
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[Paper] Nano Inclusions in Sapphire Samples from Sri Lanka, K. Jaiong, P. Wathanakul, Y.C. Kim, H.M. Choi, B.G. Choi, K.B. Shim, Journal of the Korean Crystal Growth and Crystal Technology, 19 (2009) p.84.
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[Paper] Micro-structural Defects in Ruby Samples from Mong Hsu, Myanmar, P. Maneeratanasam, P. Wathanakul, Y.C. Kim, H.M. Choi, B.G. Choi, K.B. Shim, Journal of the Korean Crystal Growth and Crystal Technology, 19 (2009) p.90.
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2008
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[Poster Presentation] Spectroscopic Properties of Natural Color Freshwater Cultured Pearls, Youngchool Kim, Hyunmin Choi, Asia Oceania Geosciences Society (AOGS) 5th Annual meeting (2008), Busan, Korea
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[Poster Presentation] Photoluminescence Study of HPHT processed Natural Type Ⅱa Diamond, Hyunmin Choi, Youngchool Kim, Sooyoun Park, Hyeonsik Cheong, Asia Oceania Geosciences Society (AOGS) 5th Annual meeting (2008), Busan, Korea
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2007
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[Poster Presentation] The identification of turquoise by infrared spectroscopy and energy dispersive X-ray fluorescence spectrometry, Hyunmin Choi, Youngchool Kim, Asia Oceania Geosciences Society (AOGS) 4th Annual meeting (2007), Bangkok, Thailand
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2005
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[Paper] A Study on the HPHT-processed NOUV Diamonds by Means of Their Gemological and Spectroscopic Properties, Youngchool Kim, Hyunmin Choi, Journal of the Korean Crystal Growth and Crystal Technology, 15 (2005) p.114.
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2004
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[Paper] 고온고압에 의해 처리된 TypeⅡa 천연 다이아몬드의 감별에 관한 연구 A Study on the Identification of TypeⅡa Natural Diamonds Treated by the HPHT Method, Youngchool Kim, Hyunmin Choi, Journal of the Korean Crystal Growth and Crystal Technology, 14 (2004) p.21.
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[Paper] FT-IR을 이용한 터키석의 감별에 관한 연구 A Study on the Identification of Turquoise by FT-IR, Youngchool Kim, Journal of the Korean Crystal Growth and Crystal Technology, 14 (2004) p.272.
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