백서에서 흡인된 티타니아 나노입자의 생체 내 분포에 관한 연구

최세훈,박계현,전상훈,김주현,정진행,조소혜,박종구,김태헌,Choi, Se-Hoon,Park, Kay-Hyun,Jheon, San-Hhoon,Kim, Joo-Hyun,Chung, Jin-Haeng,Cho, So-Hye,Park, Jong-Ku,Kim, Tae-Heon 대한기관식도과학회 2010 大韓氣管食道科學會誌 Vol.16 No.1

Titania nanomaterials are widely used as cosmetics and dyes, however the impacts on human health are uncertain, We investigated the biodistribution of inhaled titania nanoparticles in rats, Methods Eight weeks-old SD rats were intubated and inhaled with 3 mg titania nanoparticles, twice a week, for 2 weeks, After inhalation, the rats were sacrificed and tissues or heart, lung. intestine, brain, and liver were obtained, We investigated the tissues with optical microscope (OM), transmission electron microscope (EM), scanning EM, And to analyze titania concentration of each tissue, we lysed the tissues with radioimmunoprecipitation assay (RlPA) lysis buffer or acid. Results Granulation tissues in lung were confirmed on the optical microscope, however the other organs had no abnormalities in OM images, In EM images, the rats which inhaled titania nanoparticles showed calcium deposition at heart, brain, and intestine, Titania concentration in lung was increased on the inhaled rat sacrificed I month after last exposure. Conclusion Inhaled titania nanoparticles is thought to be deposited and make inflammatory reaction in lung, and the deposition was not efficiently cleared over a month. However inhaled titania nanoparticles may rarely pass through the alveolus-blood barrier and distribute to other organs of the bod.

스마트 윈도우 셀의 BaTiO₃ 도핑에 따른 전기광학특성 분석

최세훈(Se-Hoon Choi),김진아(Jin-Ah Kim),박홍규(Hong-Gyu Park) 대한전기학회 2021 대한전기학회 학술대회 논문집 Vol.2021 No.10

본 연구는 PDLC 스마트 윈도우의 고질적 문제인 높은 동작 전압을 해결하려는 방법으로 강유전체 무기물인 BaTiO₃ 나노파티클 도핑을 통해 동작 전압이 감소함을 확인하였다. BaTiO₃ 나노파티클의 도핑에 따라 3.79V의 저전압 구동이 가능함을 확인했다. 즉, 일반적인 PDLC보다 58.46%의 포화 전압 감소 효과를 보여주었고 응답속도에서 상승 시간이 0.13ms로 개선되었고 동작 안정성을 확인했다. 이 결과를 통해 강유전체 무기물의 도핑 효과를 확인하였으며 추후 PDLC 스마트 윈도우의 상용화에 도움이 될 것이라 여겨진다.

나노파티클이 분산된 액정 기반 스마트윈도우의 전기광학특성 평가

최세훈(Se-Hoon Choi),김진아(Jin-Ah Kim),박홍규(Hong-Gyu Park) 대한전자공학회 2022 대한전자공학회 학술대회 Vol.2022 No.6

소아에서 하악 양측 매복 견치와 연관된 치성 점액종

최세훈(Se-hoon Choi),정종철(Jong-Cheol Jeong),송민석(Min-Soek Song),서지훈(Ji-Hoon Seo),김성범(Soeng-Boem Kim),전창훈(Chang-Hun Jun) 대한구강악안면외과학회 2003 대한구강악안면외과학회지 Vol.29 No.1

Odontogenic myxoma is a rare tumor which occurs almost exclusively in the jaws, and seems to be of odontogenic origin. Clinically this tumor tends to appear in the second and third decades of life, and most of the lesions are located in the premolar - molar region. It is characterized grossly by mucoid or gelatinous gray-whitish tissue that replaces the cancellous bone and expands the cortex. It is invasive locally and has a high recurrence rate ranging from 10% to 33%. Radiographically, the appearance of this tumor is varied, but usually appears as a unilocular or multilocualr radioluscency of varying size. We experienced a rare case of odontogenic myxoma 12 years old patient related to mandibular bilateral impacted canines in the mandible, so we report this case with literature.

일본통치시기 타이완 프로영화운동의 맹아 연구 - 사회주의 영화저널리즘, 타이베이시네마리그, 그리고 중국영화의 관람성 고찰

최세훈 ( Choi Se-hoon ) 부산대학교 영화연구소 2020 아시아영화연구 Vol.13 No.1

이 연구에서는 일본통치시기 타이완 프롤레타리아영화운동의 맹아들에 대해 논의하고자 한다. 1920-30년대 동아시아 각국의 영화계에서는 제국주의 및 식민지적 자본주의를 배격하고 프롤레타리아 해방을 주창하는 사회주의 영화운동이 맹렬히 전개되었다. 그러나 같은 시기 타이완에서는 어떠한 움직임이 있었는지 지금까지 알려진 바가 거의 없었다. 타이완에서는 일본의 나프(NAPF)나 조선의 카프(KAPF)에 해당하는 프로예술동맹 조직이 탄생하지 못했고, 운동을 이끌어 갈 주체가 부재한 탓에 프로영화운동이 전개되기 어려운 조건에 처해 있었다. 또한 식민지 조선의 영화계와 비교하더라도 타이완의 국산영화계는 매우 미약했고, 그 결과 식민지적 현실을 고발하는 저항적 성격의 민족영화가 출현하지 못했다. 제작 방면에서의 부진은 평론 방면에서의 부진으로 이어졌고 사회주의 영화담론이 발생할 수 있는 충분한 여건이 형성되지 못했다. 그러나 1920-30년대 대중적 정기간행물들을 조사하는 과정에서 타이완에서도 영화를 무기로 한 무산계급해방운동이 미약하나마 존재했다는 사실을 확인할 수 있었다. 이 연구에서는 일본통치시기 타이완에서 전개되었던 저항적, 좌익적 성격의 영화감상운동 및 신문잡지상의 평론문들을 소개하고, 중국영화가 타이완관객에게 어떠한 영향을 미쳤는지를 분석하여 타이완 프로영화운동의 여명기와전개 양상에 대해 논해 볼 것이다. This paper discusses the inception of proletarian film movement in Taiwan under Japanese Occupation. Between the 1920s and the 1930s, the socialist film movement, which criticized the imperialistic and colonial capitalism prevalent in the cinematic spheres of East Asian countries and advocated the emancipation of the proletariat, fiercely developed. Yet to this date, the academia has hardly discussed the development of the socialist movement in Taiwan during the same period. In Taiwan, there was no similar proletarian artistic associations such as Japan’s NAPF and colonial Korea’s KAPF. Subsequently, it was difficult for a proletarian film movement to burgeon in Taiwan. In addition, in comparison with colonial Korea, Taiwan’s own film market was situated in a relatively dire condition. A film production industry and journalism that could exhibit an inclination to reflect the reality of a colony and advocate nationalism was not able to thrive. However, this paper argues that, regardless of such limitations, Taiwanese and Japanese progressive intelligentsia based in Taiwan to an extent attempted a proletarian revolution as well as criticism towards the reality of being a colony by utilizing films. This paper unearths and examines first-hand news articles and film criticism and explore the possibility of constructing a historiography of proletarian film movement in colonial Taiwan.

일본통치시기 타이완문화협회의 계몽영화운동 연구(1926-1933) - 문협 활동사진부와 메이타이단의 순회영사회를 중심으로

최세훈(Choi, Se-hoon) 가천대학교 아시아문화연구소 2022 아시아문화연구 Vol.60 No.-

이 연구에서는 1920-1930년대 타이완문화협회 활동사진부와 그 후신인 메이타이단의 창립 과정을 소개하고, 이들이 어떻게 영화를 사회계몽의 도구로 활용했는지 논의하고자 한다. 청일전쟁의 결과 일본에 할양된 타이완은 총독부의 ‘리번사업’(理蕃事業) 정책에 의해 급속한 식민화 과정을 경험한다. 타이완 총독부는 다카마스 도요지로와 타이완애국부인회에 독점적 지위를 부여하여 영화를 계몽적 식민주의의 수단으로 사용한다. 1920년에 이르러 진보적 지식인들이 일본 제국의회에 타이완 민중의 자치권을 요구하는 의회청원운동을 시도했지만 좌절되고 만다. 이 실패를 계기로 1921년에 문협이 창립되고 대만의 본토의식을 일깨우는 민중계몽운동이 조직적으로 전개된다. 문협의 전무이사 차이패이후어는 타이완의 지정학적 특수성과 이에 따른 민족적-언어적 다양성, 그리고 높은 문맹률로 인해 사회계몽운동에 많은 어려움이 있음을 발견하고, 이를 타개하기 위한 방안으로 영화를 활용하게 된다. 이렇게 탄생하게 된 문협 활동사진부는 전국적인 순회영사회를 통해 민중들에게 남녀평등사상, 과학문명과 근대적 교육의 중요성 등을 알리는 역할을 했다. 문협 활동사진부가 전국적인 지지를 얻게 됨에 따라 조직이 강화되고 활동 범위 역시 확대되었으나, 1926년 문협 내부에 이념적 갈등이 격화되면서 지도부가 분열하게 되었고, 결국 문협 활동사진부는 문협에서 이탈하여 메이타이단으로 발전적 해체를 단행한다. 짧은 활동 기간에도 불구하고 문협 활동사진부와 메이타이단이 타이완 근대 문화사에 남긴 의의는 심대하다. 이 연구에서는 회고록과 신문・잡지 등의 아카이브 기록을 통해 순회영사대의 활동 양상을 소개할 것이며 당대에 미친 문화적 영향도 함께 소개할 것이다. This study rediscovers and reevaluates the significance of the Motion Picture Troupe of Taiwanese Cultural Association and Meitaituan(Beautiful Taiwan Troupe), a Taiwanese enlightenment organization under Japanese rule, and discusses how the troupe used movies as a tool for the social enlightenment movement. Taiwan, which was ceded to the Empire of Japan as a result of the Sino-Japanese War, experienced a rapid colonization process due to the Governor General’s policy of subjugation of native Taiwanese. Sponsored by the colonial government, Takamatsu Toyojiro and Taiwan Patriotic Women’s Association used film as a tool to justify the legitimacy of Japanese colonial rule. By the 1920s, Taiwanese progressive intellectuals had attempted to petition to the Japanese Imperial Assembly for the political autonomy of the Taiwanese people, but they were eventually refused. With this setback, in 1921, Taiwan Cultural Association was founded under the banner of self-discipline and self-reliance, and an enlightenment movement to arouse Taiwanese national awareness on a national scale. Tsai Pei-huo, a core member of the Taiwan Cultural Association, well understood that Taiwan’s geopolitical specificity, ethnic-linguistic diversity, and high illiteracy rate cause many limitations in the enlightenment movement, and founded the Motion Picture Troupe under Taiwan Cultural Association, and actively used films for mobile film screening lectures. The troupe, which was born in this way in 1926, served to inform the Taiwanese people of the importance of gender equality, scientific thinking, and modern education through a nationwide tour film screening lecture, and also contributed to fostering Taiwanese national consciousness. As the mobile film screening lectures gained nationwide support, the scope of activities of the mobile film troupe expanded, but as the ideological conflicts between the left and right parties within the Taiwan Cultural Association intensified, the leadership was divided, and the troupe was reorganized as a independent group, Meitaituan. Despite the short period of the troupe’s activity, Meitaituan left significant legacies in Taiwanese cultural history. In this study, the history of Tsai Pei-huo’s troupes and influences will be introduced and analyzed in detail through hither-to neglected archival records in newspapers and magazines.

다중적층 소재 레이저용접 인자별 열영향 해석

최세훈(Se-Hoon Choi),최해운(Hae-Woon Choi) 한국기계가공학회 2021 한국기계가공학회지 Vol.20 No.8

Polymers, polymer compounds, are very moldable at low temperatures and have good strength against weight, and hence, are often used in the interior and exterior materials of cars. Owing to the increasing environmental problems, emission regulations have become stricter, which has increased the use of lightweight polymers as substitutes for metal materials. Therefore, as the use of polymer increases, extensive research is being conducted on the bonding technology of polymers, such as polyurethane and epoxy. However, the increased cost and environmental pollution by adhesives caused by the polymer manufacturing plant depend on the chemical composition or the manufacturer"s mix ratio. To compensate for this issue, a laser beam is irradiated through a highly permeable polymer (PC) placed on top of an absorbent polymer (ABS) to transfer the laser output to the ABS polymer and fuse them at the interface. Moreover, enabling laser penetrating bonding by placing a stainless steel wire mesh between the two polymers can achieve improved bonding strength compared to conventional heterogeneous polymer bonding.

Works : Gateway Bridge

최세훈(Choi, Se Hoon) 한국강구조학회 2008 韓國鋼構造學會誌 Vol.20 No.1

악안면 골절 치료시 흡수성 고정판의 사용에 관한 임상 연구

정종철(Jong-Cheol Jeong),최세훈(Se-Hoon Choi),송민석(Min-Soek Song),전창훈(Chang-Hun Jun),김현민(Hyun-Min Kim) 대한구강악안면외과학회 2003 대한구강악안면외과학회지 Vol.29 No.6

Purpose : This study evaluated the usefulness of resorbable plate and screw for treatment of maxillofacial bone fractures. Patients and methods : From july, 2000 to july, 2002, we used resorbable plates and screws(Biosorb􀋓 FX, Bionix Inc, Finland) on 126 patients for treatment of maxillofacial bone fractures. Among them, 80 patients were capable of periodic following up to present season. We evaluated these patients with clinical, radiographic findings and subjective satisfaction. Results : 80 patients composed of 63 men and 17 women. Complication rates are 7.5%(6/80) recorded. 1 of bulging sensation, 3 of infection sign, 2 of the plate detachment were shown. The plates involved in such complications were removed. The other patients(92.5%) were not shown any problems. We could not find complete resorption of screw holes in the mandibular symphysis area even though two years later after surgery. Conclusion : Bioresorbable plates and screws are useful as fixation material at maxillofacial fractures although strength is thought to be weaker than titanium plate. But to reduce the possible complicaions, need to careful clinical and radiographical evaluations.

대기압 플라즈마 조사에 따른 무기 배향막에서의 액정배향효과 연구

김진아(Jin-Ah Kim),최세훈(Se-Hoon Choi),박홍규(Hong-Gyu Park) 대한전자공학회 2022 대한전자공학회 학술대회 Vol.2022 No.6