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대한간학회지 제8차 춘계학술대회 초록집 : 구연 ; 간이식 후 B형 간염 재발방지를 위한 저용량 헤파빅 근주 및 라미부딘 병용효과
배시현 ( Bae Si Hyeon ),조세현 ( Jo Se Hyeon ),윤승규 ( Yun Seung Gyu ),양진모 ( Yang Jin Mo ),한준열 ( Han Jun Yeol ),이창돈 ( Lee Chang Don ),차상복 ( Cha Sang Bog ),정규원 ( Jeong Gyu Won ),선희식 ( Seon Hui Sig ),박두호 ( Park 대한간학회 2002 Clinical and Molecular Hepatology(대한간학회지) Vol.8 No.2(S)
박판주조한 Al-5.5Mg-0.3Cu 합금 판재의 이속압연: 기계적 특성 및 성형성 평가
천부현 ( Boo Hyeon Cheon ),한준현 ( Jun Hyun Han ),김형욱 ( Hyoung Wook Kim ),이재철 ( Jae Chul Lee ) 대한금속재료학회(구 대한금속학회) 2011 대한금속·재료학회지 Vol.49 No.3
This study describes the feasibility of producing high-strength Al alloy sheet with a high solute content using a combined technique of twin-roll strip casting and asymmetric rolling. The Al sheet produced in this study exhibited excellent formability (r=1.0, Ar=0.16) and mechanical properties (σTS~305 MPa, ε~33%), that, cannot be feasibly obtained via the conventional technique based on ingot casting and rolling. The structural origin of the observed properties, especially enhanced formability, was clarified by examining the evolution of textures associated with strip casting and subsequent thermo-mechanical treatments. Our evaluation of the mechanical properties and formability leads us to conclude that the combination of strip casting and asymmetric rolling is a feasible process for enhancing the formability of Al alloy sheets to the level beyond what the conventional techniques can reach.
논문 : 쌍롤 박판주조법으로 제조된 Al-5.5Mg-0.02Ti합금의 미세조직 및 기계적 특성
천부현 ( Boo Hyeon Cheon ),한준현 ( Jun Hyun Han ),김형욱 ( Hyoung Wook Kim ),이재철 ( Jae Chul Lee ) 대한금속재료학회 ( 구 대한금속학회 ) 2010 대한금속·재료학회지 Vol.48 No.5
High-strength aluminum alloy sheets with high magnesium contents were fabricated by a strip caster equipped with an asymmetric nozzle, which has been proven to be effective for reducing surface defects and internal segregation. 4 mm thick as-cast sheets consisting of fine dendrites and minor Al8Mg5 segregation were hot-rolled successfully to 1 mm sheets and subsequently annealed at various temperatures. The sheet revealed the tensile strength and elongation of 306 MPa and 34%, respectively, when it was rolled at 250℃ and subsequently annealed at 475℃, which exhibits the feasibility of the practical application for autobodies. The observed mechanical properties were explained on the basis of the microstructural characteristics of the alloy sheets.
Fe-Mn 계 합금에서 비부피 차를 이용한 ε 마르텐사이트의 부피분율 측정
지광구 ( Ji Gwang Gu ),한준현 ( Han Jun Hyeon ),장우양 ( Jang U Yang ) 한국열처리공학회 2003 熱處理工學會誌 Vol.16 No.4
N/A In this work, a new way of measuring the volume fraction of E martensite in Fe-based alloys has been proposed. Since the specific volume of ε martensite, depending on alloy composition, is smaller than that of austenite i.e γ phase, volume expansion takes place during ε→γ reverse transformation. As the amount of the volume expansion is proportional to the product of specific volume difference times the volume fraction of ε martensite, the volume fraction of ε martensite can be calculated by measuring the volume expansion and the specific volume difference. Such a relationship was confirmed in Fe-21 Mn and Fe-32Mn-6Si alloys which undergo γ→ε martensitic transformation on cooling and by cold rolling, respectively. It was also found that the former has isotropic E martensite while the latter has anisotropic E martensite.
대한간학회지 제8차 춘계학술대회 초록집 : 포스터 전시 ; 만성 C형 간염에서 Fas/Fas Ligand에 의한 간세포의 Apoptosis
장우임 ( Jang U Im ),배시현 ( Bae Si Hyeon ),최종영 ( Choe Jong Yeong ),윤승규 ( Yun Seung Gyu ),양진모 ( Yang Jin Mo ),한준열 ( Han Jun Yeol ),이영석 ( Lee Yeong Seog ),정규원 ( Jeong Gyu Won ),선희식 ( Seon Hui Sig ) 대한간학회 2002 Clinical and Molecular Hepatology(대한간학회지) Vol.8 No.2(S)
대한간학회지 제6차 춘계학술대회 초록집 : 구연 ; C형 간염 바이러스 감염환자에서 HLA 분석: 바이러스 감염에 대한 방어 혹은 감수성 및 질환의 진행과의 관련성
윤승규 ( Yun Seung Gyu ),한준열 ( Han Jun Yeol ),배시현 ( Bae Si Hyeon ),변병훈 ( Byeon Byeong Hun ),박영민 ( Park Yeong Min ),이영석 ( Lee Yeong Seog ),정규원 ( Jeong Gyu Won ),선희식 ( Seon Hui Sig ),김부성 ( Kim Bu Seong ),김 대한간학회 2000 Clinical and Molecular Hepatology(대한간학회지) Vol.6 No.1(S)
대간간학회지 제6차 춘계학술대회 초록집 : 포스터 발표 ; 간이식후 발생한 척추결핵 1예
이연정 ( Lee Yeon Jeong ),박영민 ( Park Yeong Min ),정은선 ( Jeong Eun Seon ),신제현 ( Sin Je Hyeon ),배시현 ( Bae Si Hyeon ),변병훈 ( Byeon Byeong Hun ),윤승규 ( Yun Seung Gyu ),양진모 ( Yang Jin Mo ),한준열 ( Han Jun Yeol ),안 대한간학회 2000 Clinical and Molecular Hepatology(대한간학회지) Vol.6 No.1(S)