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Lipopolysaccharide에 의해 활성화된 대식세포 및 지방세포 배양액에 의한 IEC-6세포모델계 Cytokines 분비 및 Galectin-3 발현 조절
한민영,임지선,홍예슬,성미경,서영록,김정상 대한암예방학회 2011 Journal of cancer prevention Vol.16 No.1
Galectin-3 (Gal-3), a member of the beta-galactoside-binding lectin family and expressed by many cell types including immune cells such as macrophages and numerous cancer cells, has been reported to be involved in colon cancer development and overexpressed in colorectal tumors. In order to determine relationship between inflammation and colon carcinogenesis, conditioned media (CM) from LPS-stimulated or non-stimulated macrophage, 3T3-L1 pre-adipocytes and differentiated adipocytes were utilized to induce inflammation in rat intestinal IEC-6 cells, followed by analysis of Gal-3 by western blot. Although preadipocyte and adipocyte cells showed increased secretion of tumor necrosis factor-α by incubation in the conditioned media from preadipocyte and adipocyte cultures, their culture media failed to regulate Gal-3 expression in IEC-6 cells. In conclusion, Gal-3 expression in IEC-6 cells was not affected by conditioned media collected from adipocyte and macrophage cultures, suggesting that cytokines produced from preadipocyte and adipocyte may not be directly involved in Gal-3 expression in rat intestinal IEC-6cells. (Cancer Prev Res 16, 26-32, 2011)
대학생이 지각한 사회적 지지가 진로준비행동에 미치는 영향 - 계획된 우연기술과 진로결정자기효능감의 매개효과 -
한민영,오은주 한국청소년시설환경학회 2019 청소년시설환경 Vol.17 No.1
The purpose of this study is to investigate the relationship between the social support, career preparation behavior, planned happenstance skills, career decision self-efficacy perceived by college students. Furthermore, the study analyzed the mediation effect of planned happenstance skills and career decision self-efficacy in the relationship between social support perceived by college students and career preparation behavior. The main results of this study are summarized as follows. First, there was a significant correlation between social support, planned happenstance skills, career decision self-efficacy and career preparation behavior. Social support and career preparedness behaviors showed a significant positive correlation, and social support, planned happenstance skills, career decision self-efficacy showed a positive correlation. Second, it was found that the validation analysis of the model was performed to verify the research model in order to examine the mediating effects of planned happenstance skills and career decision self-efficacy in social support and career preparation behavior. The results of the analysis of the research model and the competing model using the structural equation model showed that the research model was more appropriate than the competing model. Third, as a result of verifying the mediating effects of planned happenstance skills and career decision self-efficacy in the relationship between social support and career preparation behavior, the mediated effects of planned happenstance skills and career decision self-efficacy social support and career preparation behavior were completely mediated. The planned happenstance skills had a dual mediating effect in mediating career decision self-efficacy in the relationship between social support and career preparation behavior. Based on the results, implications and limitations of the study and directions for further research were discussed.
한민영 한국인공지능교육학회 2020 한국인공지능교육학회 학술대회 Vol.2020 No.10
본 연구는 학생들의 인공지능 기술에 대한 태도 신장을 위한 컴퓨팅 사고력 기반 인공지능 교육 프로 그램을 개발하는 것을 목적으로 한다. 인공지능 교육 프로그램의 주제를 선정하기 위해 학생 설문과 AI 학습 요소에 따라 ‘챗봇’을 주제로 선정하였다. 관련 문헌과 소프트웨어 교육과정을 분석해 챗봇 기반 인 공지능 교육 프로그램의 개발 기준을 선정한 후 전문가 타당도 분석 결과로 검토를 실시하였다. 검토한 개발 기준에 따라 9차시의 교육 프로그램을 개발하였으며 학습 적합도 검사는 전문가 타당도 분석 결과 를 실시했으며 개방형 응답에 따라 프로그램을 수정·보완하였다. 최종 프로그램의 효과성을 검증하기 위 해 통제집단 사전사후 실험 설계에 따라 연구를 진행하여 인공지능 기술에 대한 태도의 변화를 살펴보았 다. 그 결과 인공지능 기술에 대한 전체 태도, 인공지능 기술의 성 역할, 인공지능 기술의 접근 용이성과 인공지능 기술 관련 진로 영역에서는 유의미한 향상을 보였다.
한민영(Min Young Han),윤재영(Jae Young Yun) 한국HCI학회 2018 한국HCI학회 학술대회 Vol.2018 No.1
비정형 데이터의 분석 중 대부분을 차지하고 있는 텍스트 데이터는 텍스트가 가지고 있는 재료의 속성상 적용 및 해석이 다양하여 분석하고 시각화하기 용이하지 않다. 텍스트는 기계적으로 이해되기 어렵다. 따라서 기계적으로 분석하기 어렵다. 텍스트는 그 생성과 수용이 객관적인 상관물로 유동적, 가변적으로 생산되고 수용된다. 본 연구에서는 번역학에서 텍스트를 수용하고 재발신하는 과정이 텍스트 데이터를 시각화하는 과정과 맥락을 같이 한다고 보고, 번역학에서의 텍스트 분석 및 수용, 재발신하는 과정을 탐색하여 텍스트 데이터 시각화에 어떠한 의미를 지니는지 고찰하고자 했다. 본 연구의 목적은 첫째로 텍스트 데이터 시각화 재료인 텍스트의 본질적인 특성에 대하여 살펴보고 둘째로 재발신자로서 텍스트 데이터 시각화와 번역학 사이에 존재하는 텍스트 접근법의 의의와 한계를 밝히는 것이다.
한민영(Min Young Han),문현기(Hyun Ki Moon),김건우(Geon U Kim) 대한설비공학회 2012 대한설비공학회 학술발표대회논문집 Vol.2012 No.6
This paper describes the development of a low temperature regenerative desiccant rotor for the district cooling using the SDP(Super Desiccant Polymer). The moisture sorption capacity of the super desiccant polymer is 4 to 5 times larger than those of common desiccant materials such as silica gel or zeolite. The super desiccant polymer is usually produced as granules, and so it is laminated by placing it between two thin papers and pressing them to join into the sheet material. Then the sheet material is corrugated, cut and winded itself round the tube to produce the desiccant rotor with the size of 600×120(diameter×length, mm). The desiccant rotor cassette consists of 1 desiccant rotor contained electrolytic galvanized iron sheet with welded rims, geared motor and timing belt. The dehumidification performance was tested in a climate chamber. The relevant tests were carried out at the process air inlet temperature of 32℃, the regeneration air inlet temperature of 60℃ and the inlet dew-point temperature of both the process air and the regeneration air of 18.5℃. The performance is compared with one of very common commercial desiccant rotor. It is shown that the performance is superior to that of the commercial product. Currently the durability test is going on.