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RISS 인기검색어
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- 저자 : 한일용(Il Yong Han) (검색결과 6 건)
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한일용,이양행,황윤호,Han, Il-Yong,Lee, Yang-Haeng,Hwang, Yun-Ho 대한흉부심장혈관외과학회 1997 Journal of Chest Surgery (J Chest Surg) Vol.30 No.11
Lung hernia is defined as a protrusion of lung parenchyma beyond the confines of the musculoskeletal thorax. To date, less than 300 cases have been reported in the literature. The patients were 37 & 57-year-old men who had traumatic rib fractures in the past, whose chief complaint was a painless soft bulging mass increased in size during expiration or coughing and diminished during inspiration or quiet breathing. The primary repair was performed without any p stoperative recurrance. We report two cases of acquired herniation of lung first time in Korea with a brief review of literature. 폐탈출증은 근골격으로 구성된 흉곽 밖으로 폐실질이 빠져나와 돌출되는 것으로, 최근까지 문헌으로 보고된 예는 300 례 미만이다. 환자는 늑골 골절을 포함한 외상을 입었던 과거력을 가진 37세와 57세 남자 이며 주소는 전흉부에 무통성의 부드러운 종괴로 호기시나 기침시 그 크기가 증가하였고, 흡기시 혹은 조용한 호흡시에는 감소하였다. 수술은 흉벽 결손에 대한 일차 봉합술을 시행하였으며, 술후 재발은 아직 까지 관찰되지 않았다 저자들은 지금까지 국내 발생보고 예가 없는 후천성 폐탈출증 2례를 수술 치험하였기에 문헌고찰과 함께 보고하는 바이다.
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박경택,한일용,조광현,Park, Kyoung-Taek,Han, Il-Yong,Cho, Kwang-Hyun 대한기관식도과학회 2010 大韓氣管食道科學會誌 Vol.16 No.2
Background: The esophageal perforation is related to high morbidity and mortality rates if the diagnosis and treatment are delayed. The aim of this study is to evaluate the affecting factors on outcome and prognosis of the patients who suffer from esophageal perforation. Material and Methods: Twenty-six patients were treated with esophageal perforation in our institute from Jan. 1992 to Feb. 2010. We retrospectively reviewed the results of treatment for esophageal perforation to understand the risk factors affecting survival in patients. Results: The subjects are 26 patients suffered with esophageal perforation and the mean age is $52{\pm}17.8$ years old. 16 esophageal perforations were caused spontaneously, 25 cases were treated surgically. The mortality rate is higher in the cases o pre-operative mediastinitis. Conclusion: The shortness time interval until the beginning of treatment should be achieved to reduce the incidence of fatal post-treatment morbidity and mortality.
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일차성 기흉의 비디오 흉강경 수술 후 발생한 의인성 호르너 증후군 1예
박병건,최재원,한일용,양재욱,Byung Gun Park,Jae Won Choi,Il Yong Han,Jae Wook Yang 대한안과학회 2012 대한안과학회지 Vol.53 No.1
Purpose: To report a case of iatrogenic Horner’s syndrome after video-thoracoscopic surgery for primary pneumothorax. Case summary: An 18-year-old man with ptosis in the right eye was referred to our clinic. The patient had undergone wedge resection via video-thoracoscopic surgery for primary pneumothorax three weeks previously. On ocular examination, the palpebral fissure width was 7 mm in the right lid and 8 mm in the left lid, the marginal reflex distance 1 (MRD 1) was 2 mm in the right lid and 3 mm in the left lid, and the bilateral levator muscle function was good. Anisocoria was present, and pupil size in a dark room was 2.5 mm in the right eye and 4 mm in the left eye. The patient complained of facial anhidrosis on the right side of the face. Conclusions: Although iatrogenic Horner’s syndrome is rare complication of video-thoracoscopic surgery for primary pneumothorax, diagnosis after surgery of the thoracic cavity should be made carefully. J Korean Ophthalmol Soc 2012;53(1):157-160
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Bi-계 고온초전도 선재의 Jc 향상에 관한 연구(Ⅰ)
정대영,오영우,한일용 慶南大學校 附設 工業技術硏究所 1992 硏究論文集 Vol.10 No.-
Ag가 피복된 Bi-계 고온 초전도 선재의 임계전류밀도(Jc)향상을 위하여 분말 충진법과 아울러 압연과 소결의 혼합공정의 반복법을 사용하였다. 선재에서 높은 Jc를 얻기 위한 요인으로는 높은 고온상(Bi-2223상)분율, 방향화된 미세조직, 입계에선의 강한 결합, 미립의 비 초전도상의 균일한 분포등이다. 압연을 통하여 유된 입자의 방향적 배열화에 의하여 weak-link는 상당히 제거될 수 있었다. 본 연구에서 얻어진 가장 높은 Jc는 77K와 OT에서 6,350 A/cm²의 값이었다. In order to improve the critical current density(Jc)by obtaining well grain-aligned morphology, Ag-sheathed Bi(Pb)-Sr-Ca-Cu-O superconducting tapes were prepared using the powder-in-tube method and a repeatition of the combined process of rolling and sintering. Key factors for obtaining high Jc in the tapes are known to be high content of hegh-Tc phase(Bi-2223 phase), well grain-aligned morphology, good bonding at grain boundaries and uniform dispersion of nonsuperconducting particles. The weak-links could be considerably eliminated by directional grain-alignment induced by rolling. The highest Jc obtained in the present study was 6,350 A/cm²at 77K and OT.
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Bi-계 고온 초전도 선재의 Jc향상에 관한 연구((II)
한일용,정대영,오영우 慶南大學校 附設 工業技術硏究所 1993 硏究論文集 Vol.11 No.-
Powder in tube 방법과 pressing 및 소결의 혼합공정의 반복법을 이용하여 Ag로 피복된 Bi(Pb)-Sr-Cu-O선재를 만드는데 있어서 2223상의 서로 다른 두가지 분말을 사용하였다. 보다 낮은 2223상을 함유하는 분말을 사용해서 만든 선재는 77.3K와 OT에서 Jc가 1*10⁴A/㎠임을 보여주었다. 두 선재의 XRD patterns의 비교, 미세구조, 전기적 성질에 의해서 얻어진 결과는 소량의 2212상의 존재와 최종 pressing후 소결 과정 동안 얻어진 Ca, Cu-rich액상을 형성하는 상은 잘 배열된 2223상의 입자들간의 향상된 결합과 pressing공정 중에 생긴 미세균열의 제거는 치밀한 미세조직과 높은 Jc를 나타내었다. Two powders different in the 2223 phase content were used to prepare Ag-sheathed Bi(Pb)-Sr-Ca-Cu-O tapes by using the power-in-tube method and a repitation of the combined process of pressing and sintering. The tapes prepared using the power with lower 2223 phase content showed a Jc of 1*10⁴A/㎠ at 77.3K and O T. The results obtained by comparing XRD patterns, micromorphology, electrical properties in both tapes, indicated that the presence of a little amount of 2212 phase and Ca, Cu-rich liquid forming phase during the sintering after the final pressing is critical in connecting and eliminating the well aligned 2223 phase grains and microcracks induced by the pressing process, respectively, resulting in a highly densified morphology and a high Jc.
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