OPR1000 원전의 냉매 열수력 종합효과 실험장치 척도설계

임도영,방인철 한국유체기계학회 2023 한국유체기계학회 논문집 Vol.26 No.5

This study presents the design and preliminary verification of URILO-II, an experimental facility developed for integral effect test of nuclear safety technologies, while also providing a platform for thermal-hydraulic training through experimentation and observation. URILO-II was modeled on the OPR1000 power plant, the most commonly operated in Korea, scaled down to 1/8 height and 1/10 diameter. The refrigerant R134a was utilized to simulate two-phase flow of OPR1000 under 26.5 bar pressure. Scaling analysis indicated that similarity for the two-phase flow was secured, but distortion in single-phase flow heat transfer and temperature distribution was identified due to the refrigerant’s low single-phase heat transfer rate. Adjustments in power or flow rate were deemed necessary for accurate accident simulations. To check scaling design values, Comparative and CFD analyses were conducted, with resulted in an 8.5 % lower pressure drop. Further research will extend preliminary verification through system code analysis.

학교시설의 방과후 학습장으로의 활용방안에 관한 연구

임도영,송병준 한국청소년시설환경학회 2015 한국청소년시설환경학회 학술대회 Vol.2015 No.05

농업환경 관리를 위한 지역단위 인 수지 산정법에 관한 연구

임도영,정유진,류홍덕,김용석 대한환경공학회 2017 대한환경공학회 학술발표논문집 Vol.2017 No.11

대장암 동물 모델에 대한 이해

임도영,Lim, Do Young 제주대학교 의과학연구소 2018 The Journal of Medicine and Life Science Vol.15 No.2

Colorectal cancer (CRC) is a third leading cause of cancer-related death in cancer patients. Sporadic and inflammation-related colon carcinogenesis are major mechanism of colorectal cancer. In vivo CRC models have been developed and implicated to understand their mechanisms upon a different type of CRC. Moreover, recently animal models have played important roles in chemopreventive and preclinical trials over the years. In this mini-review, the aim is to introduce various animal models of CRC and help the understanding to establish in vivo experimental plans according to the cancer type of CRC.

[P10-252] Fisetin이 HCT-116 세포의 apoptosis를 유도하는 기전 연구

임도영,윤정한 한국식품영양과학회 2006 한국식품영양과학회 학술대회발표집 Vol.2006 No.10

Luteolin이 인간의 대장암세포인 HT-29 세포의 ErbB3 Signaling Pathway에 미치는 영향

임도영,조한진,박소영,이기원,윤정한 대한암예방학회 2011 Journal of cancer prevention Vol.16 No.2

Luteolin is 3’,4’,5,7-tetrahydroxyflavone found in various kind of fruits and vegetables. We have previously shown that luteolin decreased HT-29 cell growth by inducing apoptosis and cell cycle arrest. The present study examined whether luteolin downregulates ErbB3 signaling pathway in HT-29 cells. Cells were cultured with or without 60μmol/L of luteolin and/or heregulin (HRG)-β. HRG-β induced proliferation of HT-29 cells and luteolin abrogated this induction. Luteolin decreased both protein and mRNA levels of EGFR, ErbB3 and ErbB2 in HT-29 cells. Immunoprecipitation/Western blot analyses revealed that luteolin decreased HRG-β-induced tyrosine phosphorylation of ErbB3, recruitment of the p85 subunit of PI3K to ErbB3, and ErbB3-associated PI3K activity. Furthermore luteolin decreased HRG-β-stimulated phosphorylation of Akt. Luteolin also decreased extracellular signal-regulated kinase (ERK)1/2. The present results demonstrate that luteolin down-regulates the ErbB3 signaling pathway,which may one of the mechanisms responsible for the growth inhibitory effect on HT-29 cells. (Cancer Prev Res 16, 134-140, 2011)

[P10-98] Luteolin이 인간의 대장암세포인 HT-29 세포의 PI3K (phosphoinositide 3-kinase)/Akt pathway에 미치는 영향

임도영,윤정한,정윤화 한국식품영양과학회 2005 한국식품영양과학회 학술대회발표집 Vol.2005 No.10

중년후기 성인의 배움 활동에 나타난 의미와 진로적응에 관한 질적 탐구

임도영,원종숙,김성길 한국성인교육학회 2019 Andragogy Today : International Journal of Adult & Vol.22 No.4

The purpose of this study was to understand the meaning of erudition activities of late-midlife and to understand their career adaptation. For this purpose, we interviewed 7 male and female in terms of their career stories, applied qualitative research method based on the career construction theory. This paper especially focused on meaning of erudition activities in terms of career adaptation, and therefore we interpreted how erudition activities effected on future career adaptation for adults in late mid-life. First, the main purpose of erudition is to explore their career path and improve work ability. Second, erudition activities is instrumental in developing work ability and exploring career path especially those who are in late-midlife. Third, erudition activities and career adjustment have correlation to each other. Erudition activity helps map out one’s career path like as a ‘compass’. This study imply that erudition activities to adults in late mid-life is not only important to prepare their future career path but also find out values and meaning of life time for adults in late mid-life. This study is expected to be useful as a basic data for self–discovery and career adaptation of late-midlife. 본 연구는 중년후기 성인들이 경험한 배움 활동의 의미를 탐색하고 그 속에서 나타난 진로적응을 이해하는 데 목적이 있다. 이를 위해 구성주의 진로발달이론을 바탕으로 7명 남녀의 배움 경험과 진로 이야기를 인터뷰하였으며, 이들이 인식하는 배움 활동의 의미와 이를 통한 진로적응에 관한 기대를 해석하였다. 연구결과는 다음과 같다. 첫째, 참여자들의 배움 활동은 공통적으로 직무․진로 탐색을 위한 배움이라는 특성이 있었다. 둘째, ‘성공 경험’과 ‘사회적 지지’가 사회 환원의 실천적 쓰임새를 위한 추동 요인이었으며, 중년후기 성인들에게 있어서 학습자의 역할은 소홀히 할 수 없는 진로발달과업임을 확인하였다. 셋째, 배움 활동은 진로를 찾아가게 하는 ‘나침반’으로서 배움 활동과 진로적응이 상호 관련됨을 함축하였다. 종합하면, 중년후기 성인들에게 있어서 배움 활동은 각자 삶의 가치와 의미를 추구할 뿐만 아니라 미래의 진로를 준비할 수 있는 디딤돌임을 알 수 있었다. 향후 본 연구가 중년후기 성인의 자아 탐색과 진로적응을 지원할 수 있는 성인학습 연구의 기초자료로 활용될 수 있기를 기대한다.

국내 가축분뇨 자원화 특성을 고려한 OECD 질소수지 산정법의 지역단위 적용 연구

임도영,류홍덕,정유진,김용석,이재관,Lim, Do Young,Ryu, Hong-Duck,Chung, Eu Gene,Kim, Yongseok,Lee, Jae Kwan 한국물환경학회 2017 한국물환경학회지 Vol.33 No.5

The Nutrient budget is one of the agricultural-environment indicators of OECD. A nutrient budget measures the surplus as the differential between the inputs and the outputs of within a certain boundary and within a specified period of time (i.e. one year). According to OECD, the annual nitrogen budget for Korea was $245kg\;N\;ha^{-1}$ in 2014, which corresponds to the first position among OECD countries. In Korea in 2014, about 90 % of livestock excreta was composted as solid and liquid manure, which are usually and customarily spread on agricultural land. The objectives of this study are intended to suggest methodology of the regional nitrogen budget as a nitrogen management tool, which considers conversion from raw excreta to composted manures based on the methodology of OECD/Eurostat, and application of the new method in an agricultural region of Korea. As a result, the calculated excess rate of hydrospheric nitrogen surplus was $251kg\;N\;ha^{-1}$ (in the region in 2014), which indicates the presence of potential risks emanating from excessive nitrogen, with regard to both export water and soil environments. The findings also assert that this was shown to be one of the most important elements in the nitrogen budget, which translates to the actual amounts of nitrogen lost during the solid composting process. To better understand the process and the reliability of the method, it is necessary to analyze the sensitivity of the relevant co-efficients used in the method in the near future.

여성 마을활동가의 진로정체성 형성과정에 관한 생애사 연구

임도영,송시현,김성길 한국성인교육학회 2020 Andragogy Today : International Journal of Adult & Vol.23 No.3

The purpose of this study is to explore the process of forming career identity for female community activists in the context of life history and further discussions of their career paths. Based on the life history analysis frame suggested by Mandelbaum(1973), this research focused on three areas: ‘The realm of life', ‘Turning point' and ‘Adaptation’. According to the analysis, in the ‘area of life,’ first, there was a lack of career identity due to childhood poverty, gender discrimination, and parenting methods. Second, female is usually redefine herself after marriage so that the responsibility as a mother and a wife made female hard to choose their own career-path and performance. As a result, it hinder female from forming career identity. Third, female confirm their existence by participating community activities and local communities, and these activities act as the driving force behind the formation of career identity. In the area of ‘Turning point' can be analyzed by two levels–personal level and social level. In personal level, individual’s experience, spatiality, and people around individual were the main requirement which impact on career path. In addition, positive sentiment through social support play an important role for formation process of career identity. In the ‘Adaptation' area, female is motivated by themselves working as a community activist. 이 연구의 목적은 여성 마을활동가의 진로정체성 형성과정에 대해 생애사 맥락에서 탐색하고 이들의 진로를 위한 논의를 확장시키는데 있다. 연구방법으로는 Mandelbaum(1973)이 제안한 생애사 분석틀에 근거하여 ‘삶의 영역’, ‘전환점’, ‘적응’의 총 3개 영역으로 분석하였다. 분석 결과, ‘삶의 영역’에서는 첫째, 어린 시절의 가난, 성차별, 양육방식 등에 의해 진로정체성이 부재하였던 것으로 나타났다. 둘째, 결혼 후 가족에게 일어난 사건들로 새롭게 자신을 발견하고 있으나 가정이라는 울타리가 진로 관련 선택이나 수행 행동을 방해하며 진로정체성이 유예되는 모습으로 나타났다. 셋째, 마을공동체 활동, 커뮤니티를 통하여 자신의 존재를 확인하고 있으며, 이러한 활동이 진로정체성 형성의 원동력으로 작용하고 있다. ‘전환점’ 영역에서의 개인적 조건은 경험의 시간성, 공간성, 그리고 사람들에 의해 진로정체성의 분기점으로 반영되었으며, 사회적 지지를 통한 긍정적 정서가 진로정체성 형성과 관련된 요소로 나타났다. 사회적 조건은 상호 호혜적인 커뮤니티의 활동과 무엇이 되고자 하는 욕구와 의지가 결합되고, 마을공동체를 진로를 위한 장으로 활용함으로써 전환점이 된다. ‘적응’ 영역에서는 마을활동가로서의 의미 부여를 통해 진로를 만들어 가는 전략을 사용하고 있다. 이러한 진로정체성 형성과정의 생애사 연구결과를 바탕으로 여성 마을활동가의 진로를 위한 기초논의를 제시하였다.