나노 물질 및 제품의 안전 관리: 윤리적 원리 및 행위지침 고찰

이중원,Lee, Jung-Won 한국진공학회 2010 Applied Science and Convergence Technology Vol.19 No.6

Recently as the reports on toxicity of some nanomaterials and the nanoproducts containing these nanomaterials are rapidly increasing, the safety management issues about nanomaterials and nanoproducts are emerging hot. Especially safety in the workplace and that of consumers and the protection of environment, in other words safeties throughout the life-cycle of nanomaterials and products become core issues. Despite the importance of such a safety management, however, it is very difficult to construct the hard regulatory framework for safety, owing to uncertainties and potentialities of nano-risk. In this paper I will look around the ethical principles and guidelines for safety management which are preferentially required before going into the discussion on the construction of hard-regulation such as law and something like that. Under the circumstance that hard-regulations for safety management are not implementable, these principles and guidelines are expected to play a leading part in building the responsible risk-governance framework for nanomaterials and nanoproducts, and finally to become a cornerstone of the hard risk-governance framework.

비마토프로스트 점안 후 발생한 깊은 위눈꺼풀고랑 2례

이중원,김대윤,이용길.Joong Won Lee. M.D.. Dae Yune Kim. M.D.. Yong Kil Lee. M.D. 대한안과학회 2007 대한안과학회지 Vol.48 No.2

Purpose: To report two cases of deepening of the upper lid sulcus following bimatoprost. Methods: A 54-year-old woman who used bimatoprost for one week and a 70-year-old woman who used bimatoprost for 4 months developed deep lid sulcus. Both were using bimatoprost for glaucoma treatment. Results: Both patients also showed improvement of dermatochalasis and widening of the palpebral fissure. One week after discontinuing bimatoprost, the lid sulcus of the 54-year-old returned to baseline and exophthalmometry was unchanged. The orbital CT of the 70-year-old was normal. She did not complain about deepening of the lid sulcus, and she has not discontinued treatment due to this adverse effect.

눈물소관 열상의 최소 봉합 눈물소관 복원술

이중원,김광수,강정훈,Joong Won Lee,Kwang Su Kim,Jung Hoon Kang 대한안과학회 2008 대한안과학회지 Vol.49 No.5

Purpose: To examine the results of minimal stitch on the restoration of tissue after canalicular laceration. Methods: We have operated using sutures of tissues around canalicular laceration by inserting bicanalicular silicone stents and minimal horizontal mattress sutures with 8-0 Vicryl in cases of canalicular laceration instead of the existing method for the past 6 years. The ages of patients ranged from 2 to 76 years (average age 39.8 ±17.4 years), with most patients in their thirties (12 patients, 40%), 30 cases underwent canalicular repair with minimal stitch and bicanalicular silicone stent insertion within 24 hours after trauma. The silicone stent was removed 3 months after the operation if the patient did not complain of epiphroa while the canalicular remained open. Results: Twenty-five eyes (83.3%) showed symptom improvement and good passage in lacrimal syringing test in 4~12 months (average: 6.8±2.2 months) of follow-up study. Complications included one case each of fistula formation, stent prolapse, and wound infection, and two cases of canalicular stenosis. Conclusions: We recommend this method because of its satisfying success ratio.

21세기와 대학의 인문교육

이중원,Lee, Jung-Won 한국대학교육협의회 2000 大學敎育 Vol.106 No.-

SF₆ 분해 및 무해화 시스템의 개념 설계 및 운영 결과

이중원,김미영,안지호,변영환,Joongwon, Lee,Miyeong, Kim,Jiho, Ahn,Younghwan, Byun Korea Electric Power Corporation 2022 KEPCO Journal on electric power and energy Vol.8 No.2

SF₆ is used as an insulating gas because of its excellent electrical insulation properties, non-toxicity, and non-inflammability. On the other hand, the global warming potential of SF₆ is 23,900 times higher than that of CO₂. The Korea electric power cooperation (KEPCO) is responsible for 80% of the domestic SF₆ usage, and approximately 6,000 tons are currently charged in electrical and power facilities. KEPCO will gradually replace the insulating gas with SF₆-free gas from 2023. SF₆ decomposition facilities are required because more than 60 tons of SF₆ will need to be disposed of annually from existing equipment. This study developed a novel decomposition and pollution control system that can process 60 tons of SF₆ per year. This facility can decompose more than 97.7% of SF₆, with the emissions of hazardous and toxic materials below the legal limit.

신선가공 고탄소 강선에서의 시효현상과 딜라미네이션 발생간의 상관관계 고찰

이중원(J. W. Lee),이종철(J. C. Lee),강의구(U. G. Gang),이용신(Y. S. Lee),박경태(K. T. Park),남원종(W. J. Nam) 한국소성가공학회 2009 한국소성가공학회 학술대회 논문집 Vol.2009 No.5

The effects of annealing temperature and time on mechanical properties and microstructures were already investigated in cold drawn pearlitic steel wires. During annealing, the increment of the tensile strength at low temperatures found to be due to age hardening, while the decrease in the tensile strength at high temperatures was attributed to age softening, involving the spheroidization of lamellar cementite and recovery of lamellar ferrite. Since Between increase of tensile strength and the occurrence of the delamination would be closely related to the dissolution of cementite, the increase of drawing strain by lower annealing temperature caused the between higher tensile strength and the easier occurrence of the delamination in cold drawn pearlitic steel wires.

경인선 구도심 역세권의 도시재생 전략 및 방향

이중원(Lee, Joongwon),이경아(Lee, Kyung-A),손세형(Sohn, Saehyung) 한국도시설계학회 2012 도시설계 : 한국도시설계학회지 Vol.13 No.6

본 연구의 목표는 철로 부지 활용을 통해 낙후된 구도심의 재생 및 활성화 방안을 마련하는데 있다. 구도심의 문제점을 도출하고, 문재 해결을 위한 재생 계획 요소 및 마스터플랜을 제시하며, 재생 효과를 분석하고자 한다. 구도심 지상철 역세권 분석 결과, 철로가 도심 내 심한 단절요소로 작용하여 단절된 두 지역의 연계 성장을 저해할 뿐만 아니라, 지역의 낙후를 가속화하는 문제가 있다. 역 광장 주변 인근도로의 주차장화는 시간이 갈수록 심해지고 있으며 문화 컨텐츠프로그램의 부족은 젊은 층의 유입을 저해하고 있다. 지역 주민을 위한 공원 및 어메니티 시설의 부족 또한 커뮤니티의 낙후를 가속화 한다. 구도심 역세권 재생 계획 요소로써 입체 녹지 네트워크, 오픈 스페이스, 새로운 역사 제안, 입체 동선체계 및 인근 지역 주민에 대응하는 역세권 프로그램을 제안하고 있고, 이것들의 재생 효과를 검토하고 있다. 본 연구는 인천시 경인선 도원역세권을 실 사례로 검토하고 있다. 본 연구의 한계는 하나의 구체적인 역을 대상으로 하기 때문에 특수한 상황에 대한 도시 재생 계획 요소 및 재생 효과인 점이다. The goal of this research is to regenerate the old urban centers by rehabilitating the railway district. The procedure is as follows; first, draw the problems of existing railway station and its district in the old urban centers; second, propose regenerating design strategies and; third, analyze the possible effects by the strategies proposed. The problems of the railway station and its district were; first, the above-ground railway functioned as a urban barrier; second, the adjacent roads became parking lots; third, deficiency in the provision of cultural contents and public amenity facilities dissuaded the young generation to move into the urban centers. To solve these inherent problems, this research proposes three-dimensional green network system, openspace, renovation of the station building, complex circulation system, and community-based urban programs as solutions. Corresponding effects are also reviewed. The limitation of the research is paradoxically from the selection of a particular site. The claims of the research are subjected to be site-specific. The next research should be a comparative analysis on, at least, three stations to meet the shortcomings of this research.

학부연구생으로서 첫 번째 프로젝트

이중원(Jungwon Lee) 대한토목학회 2023 대한토목학회지 Vol.71 No.10

사진분석법을 이용한 고온에 노출된 고로슬래그 콘크리트의 색상변화도 평가

이중원(Lee, Joong-Won) 대한건축학회 2014 大韓建築學會論文集 : 構造系 Vol.30 No.2

When reinforced concrete is subjected to high temperatures in a fire, there is a deterioration in its properties. It is very important to know loss in compressive strength, loss of elastic modulus, cracking and spalling of the concrete. To determine whether a structure can be repaired rather than demolished after a fire, an assessment of structural integrity must be made. To assess the remaining bearing capacity of the structural elements after fire, information of the temperatures reached inside the elements is necessary. On heating, a change in color from normal to a pink/red is often observed and this is useful since it coincides with the onset of significant loss of concrete strength. The purpose of this study is to quantify changes in color for blast-furnace slag concrete using photo image analysis and to identify the relationship between color change and increasing temperatures. For this purpose, we manufactured concrete samples with varying water-to-binder ratios and heated them to target temperatures of 100, 200, 300, 400, 500, 600, and 700 ℃ in an electric oven, whereupon their color changes in photos of the specimen were measured using photoshop program. The result of this study shows that color changes in a concrete exposed to high temperature have a consistent relationship with several variables according to RGB, HSB, and Lab color coordinates. Therefore, it is possible to estimate how much temperature the specimen was exposed considering these results of color change.

기업페이스북 게시글 인기에 영향을 미치는 컨텐츠 특성 분석: 한영 페이지 비교

이중원(Lee, Jung Won),이윤혜(Lee, Yun Hye),김오성(Kim, Oh Sung),김수정(Kim, Su Jung),박 철(Park, Cheol),정옥경(Jung, Ok Kyung) 한국IT서비스학회 2018 한국IT서비스학회 학술대회 논문집 Vol.2018 No.-

최근 IT서비스의 발전과 모바일의 대중화로 많은 기업들이 SNS를 마케팅 커뮤니케이션 수단으로 활용하고 있다. 그 중 페이스북은 사용자가 이미 형성된 관계망이나 네트워크상에서 정보를 생산, 공유, 재생산하고, 다른 SNS와 비교해 신속하고 생동감 있게 정보전달을 한다는 점에서 기업의 마케팅커뮤니케이션 수단 으로 높은 관심을 받고 있다. 이에 본 연구는 글로벌 기업의 페이스북 게시글의 인기도에 영향을 미치는 콘텐츠 특성을 알아보고, 콘텐츠 특성이 게시글 인기도에 어떠한 영향을 미치는지 살펴보고자 한다. 또한 한국과 영어권 국가의 문화 차이 비교분석을 통해 글로벌 기업이 마케팅 성과를 높이기 위한 효과적인 전략을 제시 하고자 한다. 이를 위해 실제 10개 글로벌 기업의 한글과 영어 페이스북 컨텐츠 2,001개의 데이터를 수집하여, 콘텐츠 특성이 게시글의 인기도(좋아요, 공유, 댓글수)에 미치는 영향을 살펴보았다. 다중회귀분석 결과, 글로벌 기업의 페이스북 게시글 인기도(좋 아요, 공유, 댓글)에 영향을 미치는 콘텐츠 특성은 브랜드신호(Brand Cue), 프로모 션(Promotion), 생동감(Vividness), 상호작용성, 유용성(Utilitarian), 쾌락성 (Hedonic)으로 나타났으며, 이러한 콘텐츠 특성은 문화권에 따라 차이를 보이는 것으로 나타났다. 이러한 분석 결과를 토대로 문화권에 따른 차이를 논의하고 글로벌 기업의 콘텐츠 성과를 높이기 위한 시사점을 제시하였다.