폴리프로필렌으로 그래프트된 그래핀 옥사이드 제조 및 특성 분석

이종희(Jong-Hee Lee),오창호(Chang-Ho Oh),임정혁(Jung-Hyurk Lim),김경민(Kyung-Min Kim) 한국고분자학회 2015 폴리머 Vol.39 No.1

폴리프로필렌(PP)으로 그래프트된 그래핀 옥사이드(PP-grafted GO)는 2-bromoisobutyryl 그룹을 가진 GO(GO-Br)와 하이드록시 그룹을 가진 PP(PP-OH)와의 “grafting-to” 화학반응을 통하여 제조하였다. GO-Br은 GO와 2-bromoisobutyryl bromide를 염기촉매 하에서 반응시켜 얻을 수 있었고, PP-OH는 maleic anhydride가 그래프트된 PP(PP-MAH)와 ethanolamine과 반응하여 제조하였다. 제조된 PP-grafted GO는 PP-OH에 비하여 녹는점이 높은 온도로 이동하였고, 열적 안정성은 GO와 PP-OH에 비하여 우수한 것을 확인하였다. 이러한 결과는 그래프트된 PP 고분자가 GO의 열적 안정성을 향상시키는 것으로 판단된다. 또한 PP-grafted GO의 표면은 GO-Br에 비하여 거칠기가 증가되는 것을 확인하여 PP가 GO 표면에 화학적으로 결합한 것을 알 수 있었다. 제조된 PP-grafted GO의 분석은 FTIR, Raman, DSC, TGA, SEM과 같은 다양한 분석장비를 이용하여 수행하였다. PP-grafted GO was prepared by the reaction of graphene oxide (GO) containing 2-bromoisobuyryl groups and polypropylene (PP) having hydroxyl groups (PP-OH) via a “grafting-to” method. GO-Br was synthesized by the reaction of GO and 2-bromoisobutyryl bromide under a basic condition. PP-MAH was reacted with ethanolamine to produce PPOH. The melting temperature of PP-grafted GO was shifted to the higher temperature than that of PP-OH. Also, the thermal stability of PP-grafted GO was increased as compared to PP-OH and GO. These results demonstrated that the grafted coating polymer PP was effective for enhancing the thermal stability of GO. The higher surface roughness of PP-grafted GO was resulted from the chemical attachment of PP on the surface of GO. The characterization of PP-grafted GO was conducted from Fourier transform infrared spectroscopy (FTIR), Raman spectroscopy, differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), and scanning electron microscope (SEM).

비선형 유한요소 해석과 유사정적 실험을 통한 교각의 지진거동분석

오창국(Oh, Chang Kook),이혜린(Lee, Hyerin),홍기증(Hong, Kee Jeung) 한국콘크리트학회 2019 한국콘크리트학회 학술대회 논문집 Vol.31 No.1

해방기 북조선 시문학 형성과 미학의 정치성

오창은(Oh Chang-eun) 중앙어문학회 2011 語文論集 Vol.48 No.-

崔述의 文化談論的 考證事3考 - 《考信錄》 諸書에 나타난 樂論을 中心으로

吳昶和(Oh Chang-hwa) 대한중국학회 2008 중국학 Vol.30 No.-

1980년대 노동소설에 대한 일고찰 - 정화진 · 유순하 · 방현석 소설을 중심으로

오창은(Chang-eun Oh) 어문연구학회 2006 어문연구 Vol.51 No.-

  This thesis aims to understand the meaning of the "labor novels" in 1980"s, considering the historical situation at the time. The labor novels in 1980"s were created by intellectual writers. These writers created the labor novels through "self-negation" or "the betrayal of one"s own class", through the imagination of "crossing". This thesis will analyse the Jung Hwajin, Yoo Soonha, and Bang Hyunsuk"s labor novels. These are writers as well as laborers, the intellectual as well as writers.<BR>  Jung Hwajin"s A Metallic Stain describes the class-troubles surrounding "a bonus for preparing kimchi for the winter" with a foundry for background. This literary work expresses volumes in sketching the every-day struggle originating in a small and medium enterprise. And it is characteristic that middle-aged Mr Chon appears on the stage as a main speaker, not a advanced laborer or a young laborer of new generation. This novel shows entirely the characteristics which the labor novels in 1980"s have. The labor novels in 1980"s shout the partisan spirit of "laborers", but, on the other hand, also the laborers became the focus of object on all sides. Only the struggle of laborers came to be embossed, leaving out the every-day lives of laborers.<BR>  Yoo Soonha"s A Formation talks about a big struggle in 1987. This novel is characteristic that it presents its characters typically. While the existing labor novels establish laborers as speakers, this novel establishes Shin Jongtaek, a middle manager as the speaker. It narrates dramatically the confrontation between the capitalist and laborer in a closed space of a company. This narration strategy meets the case in showing the class-difference clearly as well as the real situation of the Korean labor world in 1980"s.<BR>  Bang Hyunsuk"s The First Stepping-Forward(1988) and Going to War at the Dawn(1989) are interesting to catch the periodical situation calmly. "The revolutionary laborer" showing in Bang"s novels is set up as the laborer overcoming the everyday difficulties and the hardship of the organization and growing up. However, Bang doesn"t depict their future hopefully.<BR>  This narration of suffering is closely connected with the sub-consciousness of the writer who took part in a labor movement as a student activist. The effect of the irony has come into existence between the tragic understanding about the world and the growing labor-understanding. In The First Stepping-Forward the laborers who turned away a labor movement because of Jungsik"s anger become part of struggle together. However, the romantic prospect that the struggle will become a victory is under the shadows of night. In Going to War at the Dawn 65 of female laborers leave to somewhere to struggle. The tragic beauty that their struggle could get joined on another breakdown flows in the whole text. In other words, we can say that the class-struggle which has been continuing since 80"s can not be accomplished only with romantic anticipation.<BR>  "Labor" is all of the human activities and an important constituent of life. Today is the age that socialistic prospect or aesthetics have been sinking. Though, it seems that "labor novels" will last. It is because human everyday life is just labor activity or its outcome. The labor novels in 80"s record the history of suffering of laborers. If "labor novels" in 1980"s are linked with the "finding-hope" in darkness, the labor novels in the future will reflect on how human everyday activities and labors are linked. Through this, I can anticipate that we could find a new pathway that "everyday life/labor/politics" to take a triangular position literarily.

Magnet-Specific Shimming of Permanent Dipole Magnet for Table-Top MRI

오창현(Chang-Hyun Oh),현정호(Jung-Ho Hyun),서증훈(Jeung-Hoon Seo),김혁기(Hyug-Gi Kim),김경한(Kyung-Han Kim) 대한전자공학회 2010 대한전자공학회 학술대회 Vol.2010 No.6

염상섭 문학과 공간의 문화정치 -『사랑과 죄』와 1920년대 경성

오창은 ( Oh Chang-eun ) 국제어문학회 ( 구 국제어문학연구회 ) 2013 국제어문 Vol.58 No.-

이 연구의 목적은 염상섭의 장편소설 『사랑과 죄』를 공간의 문화정치라는 측면에서 접근해 `1920년대 식민지 경성의 풍경`을 의미화하는 데 있다. 『사랑과 죄』는 <동아일보>에 1927년 8월 1일부터 1928년 5월 4일까지 총 257회에 걸쳐 연재된 식민지 시기 주목할 만한 장편소설이다. 염상섭은 이 소설을 1926년 1월 19일에 일본으로 건너가 2년 동안 동경에 체류하며 창작했다. 소설의 배경은 `식민지 경성`이고, 창작을 한 곳은 `제국의 도시 동경`이라는 사실이 흥미롭다. 그간의 『사랑과 죄』에 관한 연구가`사랑`과 `이념`을 구분해 분석하는 데 치중했다면, 이 연구는 식민지 시대 공간의 상징성을 재구성하려 한다는 측면에서 변별적이다. 논자는 1920년대 중반의 식민지 도시 경성을 주목함으로써, 『사랑과 죄』가 `과잉 노출하고 있는 것`과 `은폐하려고 한 것`의 관계를 살폈다. 일본제국주의는 공간의 재편을 통해 권력을 실재화했다. 이러한 상황에서 1920년대 식민지 조선의 청년들은 제국의 시선 바깥에서 제국의 균열을 기획했다. 그 문화정치적 실천의 한 양상을 『사랑과 죄』를 통해 확인할 수 있다. 『사랑과 죄』는 1920년대 작품으로서는 두드러질 정도로 공간에 대한 접근이 돋보인다. 이 작품은 경성을 감싸면서 작동하는 식민 권력의 힘을 유효하게 감각하고 있다. 남촌의 중심 공간인 진고개 주변은 여성인물들에게는 소비의 거리이고, 남성인물들에게는 유흥의 장소였다. 그곳은 식민지 일상을 압도하는 스펙터클의 공간이었다. 소설에서 형상화된 점이지대로서 세브란스병원과 심초매부의 집도 흥미로운 공간이다. 이곳은 제국의 중심에 위치해 있으면서 제국의 시선 바깥이기도 하다. 이 두 장소는 식민지 권력에 길항하는 점이지대였다. 『사랑과 죄』는 반(反)식민주의 근대성을 향해 있다. 이 소설은 `일본`과 `중국`이 의미하는 공간의 상징성을 적절하게 보여주는 결론을 취한다. 해춘이와 순영이 일본이 아닌 중국 상해를 선택한 것은 반식민지적 근대성이 `일본과 조선` 바깥에서만 가능했던 1920년대 조선의 풍경을 적절하게 포착한 것이라고 할 수 있다. The purpose of this study is to reconstruct `Scenery of Colony Gyeongseong in the 1920s` by approaching Yeom Sang-seop`s full-length novel Love and Crime from the viewpoint of the cultural politics of space. Love and Crime is a noteworthy full-length novel in the colonial period published serially in the Dong-A Ilbo in a total of 257-part series from August 1, 1927 to May 4, 1928. This novel was the one that Yeom Sang-seop wrote while he stayed in Tokyo for 2 years since he went to Japan on January 19, 1926. What is interesting is the fact that the setting for the novel was `Colony Gyeongseong,` and the place where the novel was written was `Imperial City Tokyo.` It has been common that preceding studies have approached `love` and `ideology` separately, but this study is differentiated in terms of the aspect of reconstructing the symbolism of colonial period space through the symbolism of space. This writer focused on the colonial city Gyeongseong in the mid-1920s and examined the relationship between `what Love and Crime overexposes` and `what it tries to conceal.` Japanese imperialism pursued the internalization of power through the cultural politics of space. Under such circumstances, the youth of colonized Joseon in the 1920s planned crack in the empire in the outside of the eyes of the empire. The one aspect of the cultural practice can be confirmed through Love and Crime. Love and Crime stands out in approach to space so much prominently for the work in the 1920s. This work effectively senses the power of colonial authority operating while covering Gyeongseong. The surroundings of Jingogae, the central space of Namchon is the street of consumption for women characters and the merrymaking place for men characters. It was the space of spectacles that overwhelmed the daily life of the colony. Severance Hospital and the house of Simcho brother-in-law as the transitional zone embodied in the novel are also interesting space. These places are located in the center of the empire and at the same time in the outside of the eyes of the empire. These two places were the transitional zones of discourses standing against the colonial authority. Love and Crime faces the modernity of anti-colonialism. This novel takes the conclusion which appropriately shows the symbolism of spaces, `Japan` and `China.` It can be said that it grasped the scenery of Joseon in the 1920s appropriately in which anti-colonial modernism was possible only in the outside of `Japan and Joseon` that Haechun and Sunyeong chose Shanghai in China rather than Japan.

Fast Tool Servo를 이용한 초정밀가공

오창진(C. J. Oh),김호상(H. S. Kim),김의중(E. J. Kim),송승훈(S. H. Song),김태형(T. H. Kim) 한국정밀공학회 1998 한국정밀공학회 학술발표대회 논문집 Vol.1998 No.5월

일반논문 : <의궤(儀軌)>류의 고건축 어휘 해독과 건축 용어 선정

오창면 ( Chang Myeong Oh ),손희하 ( Heui Ha Son ) 전남대학교 호남학연구원 2008 호남학 Vol.0 No.42

루소의 ‘자연’ 개념에 관한 연구

오창진(Oh, Chang-Jin),김회용(Kim, Hoy-Yong) 한국교육철학회 2011 교육철학 Vol.45 No.-

Lots of researchers have studied the meaning of nature by Rousseau. The idea of nature, however, is still one of the most controversial issues in studying Rousseau. This dissertation aims to examine the idea of nature on the historical context. The Ionions thought that nature itself circulates. Although they comprehended nature from the scientific point of view getting over the early myth, they thought nature from the view of hylozoism. The Pythagoreans claimed that whole the universe and nature is mystical and eternal. Nature has harmony in accordance with ratios of numbers. From their view human-being is microcosm while nature is macrocosm. Although Plato was affected by the Pythagoreans, he found the transcendence-theory instead of immanence-theory. He claimed that the material world as it seems to us is not the real world, but only an image or copy of the real world. Rousseau disagreed the modern idea of nature based on Enlightenment. He opposed rationality based on reason and rejected to regard nature as a huge machine. He borrowed ideas from the understanding of nature by ancient Greek. He was influenced by the Ionions, Pythagoreans, and Plato and he believed the power of nature organizing the order. Borrowing the macrocosm-microcosm model of ancient Greek, he claimed that human being has capacity to follow the order of nature. He insisted that human being has self love, compassion and perfectibility which are given from nature itself as a microcosm and thus he should be accorded to the order of nature as macrocosm.