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증례 : 류마티스 ; 종양으로 오인될 수 있는 결절성 근육 유육종증 1예
안세한 ( Se Han Ahn ),김민수 ( Min Su Kim ),한민성 ( Min Sung Han ),윤정호 ( Jung Ho Yoon ),국은희 ( Eun Hee Kook ),전세용 ( Se Yong Jeon ),김철현 ( Cheol Hyeon Kim ) 대한내과학회 2011 대한내과학회지 Vol.80 No.2
The nodular form of muscular sarcoidosis is a rare malady that is often confused with a soft-tissue neoplasm or other lesion. Here, we present a case of nodular muscular sarcoidosis in the arms and legs of a 59-year-old woman. She presented at our hospital with a painless nodule in her left arm. Excision was performed and she was diagnosed with sarcoidosis. One year later, nodular sarcoidosis recurred in her arms and legs. After 2 months of steroid medication, the nodules disappeared. The patient has been followed for 2 years and no evidence of recurrence has been observed. (Korean J Med 2011;80:247-249)
미국 내 친환경 초고층건물의 에너지효율을 위한 디자인 전략 연구
안용한(Ahn, Yong-Han),최영오(Choi, Young-Oh) 대한건축학회 2012 대한건축학회논문집 Vol.28 No.11
The concept of sustainability has gained popular momentum over the past twenty years in the construction industry. To achieve the goals of sustainability in the construction industry, sustainable design and construction strategies have been developed and implemented into buildings over the building’s life cycle. These sustainable strategies also have incorporated into tall building design, construction and operation to minimize environmental impacts; save water and energy consumptions; and provide high quality indoor environment to not only improve occupants’ health and wellbeing but also to increase their productivity. Due to many potential benefits related to sustainable tall building design, several tall buildings in the United States have incorporated sustainable strategies in their new development and major improvement. This study identifies sustainable design strategies relate to energy efficiency along with their potential benefits from the implementation of sustainable strategies. This study studied for sustainable tall buildings including the The Empire State Building, the Willis Tower (formerly Sears Tower), the Bank of America Tower and the Duke Energy Center located in the United States. By conducting case studies for four sustainable tall buildings, it is possible to identify and compare sustainable strategies, mainly related to energy efficiency in sustainable tall building. This study suggests potential sustainable strategies for the renovation of sustainable tall buildings and new sustainable tall buildings in the Republic of Korea.
특발성 망막앞막, 황반원공에서 유리체 절제술 후 주입한 가스 종류에 따른 백내장 진행
안자영(Ja young Ahn),김체론(Che Ron Kim),공민귀(Min gui Kong),한용섭(Yong Seop Han),정인영(In Young Chung),박종문(Jong Moon Park) 대한안과학회 2016 대한안과학회지 Vol.57 No.11
목적: 특발성 망막앞막과 황반원공 환자에서 유리체 절제술 후 주입한 가스의 종류에 따른 백내장의 진행 정도를 알아보고자 하였다. 대상과 방법: 유리체 절제술 후 액체/공기 교환술(Group 1), 20% SF6 주입술(Group 2)을 시행 받은 환자를 대상으로 수술 전과 수술 후 1, 2, 4, 6, 12개월째의 Lens Opacities Classification System (LOCS) III 분류를 이용한 핵경화도, 굴절력(구면대응치)을 측정하였다. PentacamⓇ 샤임플러그 이미지를 image J 프로그램을 이용하여 mean nuclear density와 maximal nuclear density를 측정하여 비교 분석하였다. 결과: 총 40명, 40안 중 액체/공기 교환술만 시행한 환자(Group 1)는 21안, 20% SF6 가스를 주입한 환자(Group 2)는 19안이었다. 두 군 모두 수술안이 비수술안에 비해 mean nuclear density와 maximal nuclear density, LOCS III를 이용한 백내장 진행의 분석에서 핵경화의 진행이 빨랐다. 가스의 종류에 따른 비교에서 mean nuclear density는 수술 후 4개월째 두 군의 유의한 차이를 보였으며, maximal nuclear density는 수술 후 2개월과 4개월째 두 군의 유의한 차이를 보였다. LOCS III는 수술 후 2개월과 4개월째, 구면대응치는 수술 후 1개월부터 6개월까지 두 군에서 통계적으로 유의한 차이를 보였다. 결론: 유리체절제술 전과 수술 후의 백내장 진행 정도는 주입한 가스와 관계없이 수술안이 비수술안에 비해 핵경화의 진행이 빨랐다. 20% SF6 주입술(Group 2)을 시행 받은 군에서 핵경화의 진행이 더 빨리 일어난 것을 확인하였으나 수술 후 12개월에는 가스의 종류에 상관없이 핵경화의 변화 정도는 비슷했다. <대한안과학회지 2016;57(11):1745-1751> Purpose: To investigate the outcomes of quantitative lens nuclear opalescence change after pars plana vitrectomy and intravitreal gas injection in patients with idiopathic epiretinal membrane and macular hole. Methods: All patients were divided into two group according to the kinds of injected gases, either Group 1 (fluid/air exchange) or Group 2 (20% SF6 gas injection). Lens nuclear opalescence according to the classification of Lens Opacities Classification System (LOCS) III, mean nuclear density and maximal nuclear density of Pentacam?? scheimpflug image changed by image J, besides refractive errors were evaluated before surgery and 1, 2, 4, 6, and 12 months after surgery. Results: Out of 40 eyes of 40 patients included in the analysis, 21 received only fluid/air exchange (Group 1) and 19 received 20% SF6 gas injection (Group 2). There were significant changes in lens nuclear opalescence between the study and control (unaffected) eyes. In both groups, the study eyes experienced significant progression of cataract compared with the control eyes, in terms of mean nuclear density, maximal nuclear density and LOCS III. In comparison according to the kinds of injected gases, there was a significant difference in mean nuclear density after 4 months, maximal nuclear density after 2 months and 4 months, LOCS after 2 months and 4 months, and refractive error after 1, 2, 4, and 6 months between both groups (p = 0.003). Conclusions: After vitrectomy and intravitreal gas injection, changes in postoperative lens nuclear opalescence of the study eyes progressed more rapidly compared with the control eyes. This study identified that lens nuclear opalescence of Group 2 progressed rapidly, but after 12 months there was no significant difference of lens opacity between the kinds of injected gases. J Korean Ophthalmol Soc 2016;57(11):1745-1751
국내 원전 방사화 콘크리트 구조물 해체공사 리스크 분류체계 구축 : 구조적·인적 리스크를 중심으로
이상렬(Lee, Sang Ryul),문효수(Moon, Hyo Soo),조한광(Cho, Han Kwang),권나현(Kwon, Na Hyun),최중식(Choi, Jung Sik),안용한(Ahn, Yong Han) 한국퍼실리티매니지먼트학회 2021 한국퍼실리티매니지먼트학회지 Vol.16 No.2
Lee, Sang Ryul Moon, Hyo Soo Cho, Han Kwang Kwon, Na Hyun Choi, Jung Sik Ahn, Yong Han Abstract The purpose of this study is to develop a risk breakdown structure by deriving structural and job risks that may occur during the dismantling of radiated concrete structures in nuclear power plants. In order to achieve the purpose, the similarity between nuclear power plant dismantling and construction demolition work was analyzed, and a work breakdown structure was established to derive risk factors for each cutting work type and structural and job risks based on expert interviews. As a result, this study developed a practical risk breakdown structure that can be used when dismantling nuclear power plants.