• Title/Summary/Keyword: 생명선

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고추가루 미생물의 방사선 감수성

  • 최언호;김영배;이서래
    • Proceedings of the Korean Society for Applied Microbiology Conference
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    • 1976.10a
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    • pp.187.2-187
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    • 1976
  • 시판 고추가루에서 미생물을 분리하여 세균 5종과 곰팡이 13종을 동정하였고 코발트-60 감마선에 대한 이들 균주의 치사율 (D$_{10}$ 값)을 조사하였다. 또한 고추가루에 0-1,000 krad의 감마선을 처리하고 저장중 미생물의 증식여부를 관찰한 결과 세균의 발육감소를 가져왔다.

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생명을 살리는 성체줄기세포

  • Gang, Gyeong-Seon
    • Health and Mission
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    • s.4
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    • pp.20-25
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    • 2005
  • 배아는 잠재적인 인간이므로 윤리적 문제를 피할 수 없다. 과연 배아줄기 세포만이 난치병을 극복할 수 있는 유일한 길일까? 하나의 생명을 살리기 위해 다른 생명을 파괴해야 하는 배아줄기세포의 대안으로 성체줄기세포가 사용 될 수 있으며 그 활용도는 매우 다양하다.

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Attention U-Net Based Palm Line Segmentation for Biometrics (생체인식을 위한 Attention U-Net 기반 손금 추출 기법)

  • Kim, InKi;Kim, Beomjun;Gwak, Jeonghwan
    • Proceedings of the Korean Society of Computer Information Conference
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    • 2022.01a
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    • pp.89-91
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    • 2022
  • 본 논문에서는 생체인식 수단 중 하나인 손금을 이용한 생체인식에서 Attention U-Net을 기반으로 손금을 추출하는 방법을 제안한다. 손바닥의 손금 중 주요선이라 불리는 생명선, 지능선, 감정선은 거의 변하지 않는 특징을 가지고 있다. 기존의 손금 추출 방법인 비슷한 색상에서 손금 추출, 제한된 Background에서 손금을 추출하는 것이 아닌 피부색과 비슷하거나, 다양한 Background에서 적용될 수 있다. 이를 통해 사용자를 인식하는 생체인식 방법에서 사용할 수 있다. 본 논문에서 사용된 Attention U-Net의 특징을 통해 손금의 Segmentation 영역을 Attention Coefficient를 업데이트하며 효율적으로 학습할 수 있음을 확인하였다.

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Assessment of Lifeline Construction Technology for Buried Alive in Building Collapse (도심지 붕괴사고에 따른 매몰지역 생명선 시공기술 평가)

  • Ryu, Byung-Hyun;Kang, Jae-Mo;Lee, Jangguen;Kim, Young-Sam;Joo, Rak-Bong
    • Journal of the Korean GEO-environmental Society
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    • v.17 no.9
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    • pp.47-52
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    • 2016
  • Unusual extreme weather events, which exceed a safe design capacity of the infrastructure, increase the frequency of natural disasters and has also been enlarged damage scale. Aging buildings and rapid urban progress act as weighting factors for the new composite disasters. Technological advances support detecting pre-disaster risk, real-time data analysis, and rapid response to the disaster site, but it is insufficient that emergency relief for buried alive must take advantage of the proven technologies through field tests. This study aims to evaluate directional drilling performance through underground soils and the reinforced concrete structure for primary lifeline installation in order to quickly provide relief supplies for buried alive when urban structures collapse.

Induction of Apoptosis by Treatment of Human Prostate Cancer LNCaP Cells with Methanol Fractions from Prunus mume (매실(Prunus mume) 메탄올 분획물의 처리에 따른 인체 전립선암세포 LNCaP의 apoptosis 유도 효과)

  • Kim, Hwi-gon;Kim, Jeong-Ho;Heo, Ji-An;Won, Yeong-Seon;Seo, Kwon-Il
    • Journal of Life Science
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    • v.31 no.3
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    • pp.321-329
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    • 2021
  • This study examined the growth inhibitory effect of the methanol fraction of maesil (Prunus mume) extract (MMF) on LNCaP, PC-3, and RC-58T human prostate cancer cell lines. Among these cell lines, LNCaP was the most sensitive to the inhibitory effects of MMF. Observation of the morphology and apoptotic body formation in the LNCaP cells revealed morphological changes, nuclear damage, and condensation in response to MMF treatment. The suppressive effect of MMF was related to the intrinsic apoptosis pathway, as indicated by increased expression of the pro-apoptotic proteins Bax, capase-3, capase-9, and PARP and decreased expression of the anti-apoptotic protein Bcl-2. Combined treatment with MMF and the AIF inhibitor N-phenylmalemide (N-PM) indicated that MMF treatment alone had a significant growth suppression effect. The involvement of the extrinsic apoptosis pathway was also confirmed by increased expression of AIF and Endo G. The growth suppression effect of MMF was also significant when compared to the effects of a combination of the PI3K inhibitor LY294002 and MMF. The reduced expression of PI3K, p-Akt, and p-mTOR confirmed the involvement of the PI3K/Akt/ mTOR signaling pathway in regulating the anti-proliferative properties of MMF. In conclusion, the growth suppression effect of MMF in the LNCaP human prostate cancer cell line shows the possibility of using this natural product in functional foods.