• 제목/요약/키워드: Kwon Sang-ha

검색결과 488건 처리시간 0.038초

Single Dose Toxicity Study of IFN-Rod in Cynomolgus Monkey

  • Kim, Choong-Yong;Heo, Jeong-Doo;Han, Su-Cheol;Seol, Eun-Young;Tarumoto, Yasuo;Kwon, Myung-Sang;Ha, Chang-Su
    • 한국환경성돌연변이발암원학회:학술대회논문집
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    • 한국환경성돌연변이발암원학회 2004년도 춘계학술대회
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    • pp.60-60
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    • 2004

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The Application of NMR Techniques to the Structural Confirmation of O-Substituted 3,4-Dihydroxyphenylacetic Acid Derivatives

  • Lee, Sueg-Geun;Choi, Joong-Kwon;Park, No-Sang;Hong, Mi-Sook;Ha, Deok-Chan
    • Bulletin of the Korean Chemical Society
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    • 제13권1호
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    • pp.87-91
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    • 1992

  • The structures of the compounds, 1, 2, 3, and 4, which were precursors of analgesics, were confirmed by modern NMR techniques. The complete $^{13}C-NMR$ assignments of these systems were established by applying COLOC (COrrelated spectroscopy for LOng range Couplings), HETCOR (HETeronuclear CORrelated spectroscopy), RCT (Relay Coherence Transfer), and NOE difference spectroscopy. The limitation of COLOC approach which has been widely used recently is discussed.

  • https://doi.org/10.5012/bkcs.1992.13.1.87 인용 PDF

인천 LNG 지하탱크 Bottom 의 온도균열제어 (Thermal Crack Control about of LNG in Inchon)

  • 구본창;하상욱;김동석;하재담;이종열;권영호
    • 한국콘크리트학회:학술대회논문집
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    • 한국콘크리트학회 2000년도 봄 학술발표회 논문집
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    • pp.291-296
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    • 2000

  • The crack of concrete induced by the heat of hydration is s serious problem, particularly in concrete structures such as bridge piers. thick walls, box type walls, mat-slab of nuclear reactor building, dams of foundations of high rise buildings, etc. As a result of the temperature rise and restriction condition of foundation, the thermal stress which way induce the cracks can occur. Therefore the various techniques of the thermal stress control in massive concrete have been widely used. One of them is prediction of the thermal stress, besides low-heat cement which mitigates the temperature rise, design change which consider steel bar reinforcement, operation control and so on. In this study, firstly it introduce the thermal cracks control technique by employing low-heat cement concrete, thermal stress analysis, Secondly it shows the application of the cracks control technique like the bottom of No.15,16 Underground LNG Tank in Inchon.

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내부 확산법에 의한 $Nb_{3}Sn$ 초전도 선재에서 부분 가열이 초전도 특성에 미치는 영향 (The effect of local heating on superconductivities in internal tin Processed $Nb_{3}Sn$ wires)

  • 하동우;오상수;하홍수;이남진;권영길;류강식
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 1999년도 추계학술대회 논문집 학회본부 C
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    • pp.876-878
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    • 1999

  • Internal tin processed Nb3Sn wires with different diameter were locally heated before reaction heat treatment. Local heating at the intermediate state of drawing process decreased the superconducting properties and workability. When the local heating temperatures were higher than melting point of Sn, non-Cu Jc's decreased significantly.

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