Clinical Exploration of Nonalcoholic Fatty Liver Related Hepatocellular carcinoma

김영민,배종욱,김영민,조우희,한규형,김석배,송일한 대한내과학회 2017 대한내과학회 추계학술발표논문집 Vol.2017 No.1

고층건물의 멀티 기둥그룹에 대한 부등기둥축소량의 최적보정기법

김영민,Kim, Yeong-Min 한국전산구조공학회 2008 한국전산구조공학회논문집 Vol.21 No.2

본 연구에서는 3개 이상의 기둥그룹에 대해서도 일반적으로 적용 가능한 기둥축소량의 최적보정기법을 제안하고, 이를 실제 시공된 건물에 적용하여 그 적용성을 평가하였다. 제안된 최적보정기법은 성능 및 시공상의 제약조건을 만족하면서 보정개소를 최소한으로 할 수 있는 층그룹 및 이때의 보정량을 산정하며, 상대보정뿐만 아니라 절대보정을 고려한 혼합보정도 가능하다. 최적보정에는 시뮬레이티드 어닐링(simulated annealing)이 주요 알고리즘으로 사용되었다. 제안된 기법을 실제 축소량 보정이 수행된 61층 건물에 적용한 결과, 보정량을 쉽게 산출할 수 있고 또한 실무방식보다 보정개소를 줄일 수 있어 적용성이 뛰어남을 확인하였다.

1P-310 목재-플라스틱 복합재의 촉매열분해 연구

김영민,한태욱,박영권,김승도 한국공업화학회 2017 한국공업화학회 연구논문 초록집 Vol.2017 No.1

열분해를 통해 형성된 바이오오일은 높은 산소함량 및 산도 등으로 인해 화학원료 및 연료로 직접 사용하는데 어려움을 지녀 촉매개질화와 같은 추가적인 공정이 반드시 필요하다. 그러나 바이오매스 촉매열분해의 경우 투입시료 대비 방향족 탄화수소의 회수량이 적은 문제점을 지닌다. 최근 이러한 문제점을 효과적으로 해결하기 위해 바이오매스-플라스틱 혼합촉매열분해 연구가 활발하게 진행 중이다. 목재-플라스틱 복합재(Wood-Plastic Composite, WPC)는 바이오매스-플라스틱 혼합물로 구성되어 있음으로 촉매열분해 시 바이오매스 촉매열분해와 비교하여 방향족 탄화수소 생성에 보다 유리하리라 판단된다. 따라서 본 연구에서는 WPC 촉매열분해 특성을 규명하기 위해 제올라이트 촉매를 이용하여 굴참나무, HDPE, 굴참나무/HDPE 혼합물의 촉매열분해를 수행하였다. ^**본 연구는 환경부 폐자원에너지화 재활용 전문인력 양성 사업(YL-WE-17-001)과 2017년도 정부(미래창조과학부)의 재원으로 한국연구재단의 지원을 받아 수행된 연구임(NRF-2017R1C1B5017885).

물리학에서의 창의성과 유비 그리고 물리 교육적 함의

김영민 한국물리학회 2020 새물리 Vol.70 No.3

In this article, the analogies of creative physicists in the history of physics are analyzed from the point of view of problem finding and problem solving. For problem finding, the analogy of Carnot in the theory of the thermal engine and the analogy of Young in the wave theory of light were analyzed, and for problem solving, the analogies of Galileo in the shape of the Moon’s surface and Sun spot, of Young in wave property of light, of Faraday in magnetic force line and electrostatic force line, and of Einstein in radiation were analyzed. Also, the use of analogy to explain physical concepts was analyzed. Lastly, the ways in which analogies in physicists’ creative problem finding and solving can be applied for teaching student creativity development in science are discussed. 본 논문에서는 물리학사적으로 볼 때 창의적 물리학자들이 보였던 유비들을 문제발견 과정에서의 유비와문제해결 과정에서의 유비로 유형화하여 창의성과 어떤 관련이 있는지를 분석하였다. 물리학적 문제 발견과정에서의 유비로는 카르노의 열기관 이론에서의 유비와 영의 빛의 파동론 가설을 세울 때의 유비, 그리고문제 해결 과정에서의 유비로는 갈릴레오의 달 표면 모양 추론과 태양 흑점 설명을 위한 유비, 영의 빛의파동성 추론을 위한 유비, 패러데이의 자기력선과 전기력선 추론을 위한 유비, 그리고 아인슈타인의 복사밀도함수 추론을 위한 유비를 분석하였다. 그리고 물리 개념 설명을 위한 유비로 파인만의 유비를 제시하였다. 끝으로 창의적 과학자들의 창의적 유비 사례를 어떻게 과학 창의성 교육에서 활용할 수 있는가에 대해논의하였다.

The Experimental Spirit in Canadian Poetry: Margaret Atwood, Eli Mandel, George Bowering, and the Experimental poets Thereafter

김영민 English Language and Literature 2003 영어 영문학 Vol.49 No.4

Visual Literacy and Transgression: Rereading Vertigo from Lacanian Gaze

김영민 한국현대정신분석학회 2008 현대정신분석 Vol.10 No.2

When touching on "kino-eye" in his Organs without Bodies (2004), Žižek provides an analysis of Alfred Hitchcock's Vertigo's "captivating force of a sublime image," and gives a critique of the "excessive subjective engagement of the theorists in Hitchcock's films," suggesting what he calls "a theory of misrepresentations and mistakes." According to Žižek, critics often blur the borderline between what a viewer sees on the screen and what the viewer invests with his/her libidinal investment in it in the form of hallucinatory supplements or distortions: In fact, Žižek argues that the shot of Madeleine's profile is totally subjectivized, depicting not what Scottie effectively sees but what he imagines, that is, his hallucinatory inner vision, and that this shot of the profile of Madeleine lets us encounter the "kino-eye" which functions as the "organ-without-body," the camera as a partial object, as an "eye" torn from the subject and freely thrown around. As Žižek perceives, in our daily lives, we encounter the uncanny moments when we catch sight of our own image which is not looking back at us. In other words, our specular image is torn away from us and our look is no longer looking at ourselves. Žižek's insightful comments is based upon his assumption that "what we see on the screen is the result of well-crafted tricks." Then, why this imaginary distortions and hallucinatory supplements? In fact, Žižek's Lacanian interpretation is insufficient to elaborate the split between the eye and the gaze, the split which is central in the discussion of the drive in relation to desire, subject, and the unconscious manifested in the scopic field. I would argue that one needs a certain elaborate schemata or interpretive topology from which one can visualize what one attempts to say. Gaze in terms of anamorphosis, visual literacy, and the schema of the hoop net is a candidate for such topology, and the modus operandi comes from the concept of transgression. My contention is that if one read Vertigo in terms of what Lacan says rather than what Žižek interprets in a Lacanian perspective, one can encounter a richer version of the analysis of the film under discussion. When touching on "kino-eye" in his Organs without Bodies (2004), Žižek provides an analysis of Alfred Hitchcock's Vertigo's "captivating force of a sublime image," and gives a critique of the "excessive subjective engagement of the theorists in Hitchcock's films," suggesting what he calls "a theory of misrepresentations and mistakes." According to Žižek, critics often blur the borderline between what a viewer sees on the screen and what the viewer invests with his/her libidinal investment in it in the form of hallucinatory supplements or distortions: In fact, Žižek argues that the shot of Madeleine's profile is totally subjectivized, depicting not what Scottie effectively sees but what he imagines, that is, his hallucinatory inner vision, and that this shot of the profile of Madeleine lets us encounter the "kino-eye" which functions as the "organ-without-body," the camera as a partial object, as an "eye" torn from the subject and freely thrown around. As Žižek perceives, in our daily lives, we encounter the uncanny moments when we catch sight of our own image which is not looking back at us. In other words, our specular image is torn away from us and our look is no longer looking at ourselves. Žižek's insightful comments is based upon his assumption that "what we see on the screen is the result of well-crafted tricks." Then, why this imaginary distortions and hallucinatory supplements? In fact, Žižek's Lacanian interpretation is insufficient to elaborate the split between the eye and the gaze, the split which is central in the discussion of the drive in relation to desire, subject, and the unconscious manifested in the scopic field. I would argue that one needs a certain elaborate schemata or interpretive topology from which one can visualize what one attempts to say. Gaze in terms of anamorphosis, visual literacy, and the schema of the hoop net is a candidate for such topology, and the modus operandi comes from the concept of transgression. My contention is that if one read Vertigo in terms of what Lacan says rather than what Žižek interprets in a Lacanian perspective, one can encounter a richer version of the analysis of the film under discussion.

굴착기 외장 부품의 압흔 저감을 위한 평판 전극 적용 저항 점용접 특성 평가

김영민,이승환,황인성 대한용접접합학회 2025 대한용접접합학회지 Vol.43 No.2

Resistance spot welding (RSW) inherently creates indentations on the material surface due to the applied pressure from the upper and lower electrodes. While indentations are not a major concern for internal components, they significantly affect the surface quality of external panels. To mitigate this issue, industrial practices involve increasing the diameter and curvature of the electrode tip; however, this approach cannot completely eliminate indentations, necessitating additional post-processing for their removal. Using large-area flat electrodes could theoretically prevent indentation, but this leads to excessive contact area, resulting in weakened joint strength and increased welding current requirements. In this study, a novel approach was proposed to minimize indentation by applying large-area flat electrodes to external components while maintaining conventional-sized electrodes for internal materials. Resistance spot welding was performed under various process conditions, and the weld strength and indentation depth were evaluated. Furthermore, the effects of different process parameters on weld quality and indentation formation were analyzed to determine optimal conditions that minimize indentation while maintaining sufficient joint strength.

과학교육용 CD - ROM 타이틀 개발 연구

김영민,이미경,서정민 한국과학교육학회 1996 한국과학교육학회 학술발표 및 세미나집 Vol.1996 No.-

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초중등 과학교육 지표체계화

김영민,박승재 한국과학교육학회 1991 한국과학교육학회 학술발표 및 세미나집 Vol.1991 No.-

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PDMS Based Liquid Contactable Colorimetric Sensor Array for Bacteria Discrimination

김영민,이명구,신동인,임성현,이기라 한국고분자학회 2020 한국고분자학회 학술대회 연구논문 초록집 Vol.45 No.2