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. 최근 나노 물질의 독성에 대한 보고와 나노 물질을 함유한 제품들의 급속한 증가 그리고 제조 과정에서의 나노 물질의 폭 넓은 응용으로 인해, 나노 물질 및 제품의 안전 관리 문제가 중요한 쟁점으로 부상하고 있다. 특히 작업장에서의 안전, 제품을 사용하는 소비자의 안전 그리고 환경 보호 등 나노 물질 및 제품의 전주기 과정에 걸친 안전 확보가 문제다. 하지만 나노 물질 및 제품의 위험이 잠재적이고 불확정적이기에, 이것들을 대상으로 하는 엄격한 안전 관련 규제체계를 구축하는 것은 어렵다. 본 논문에서는 이러한 쟁점들과 관련하여 나노 물질을 연구 개발하고 나노 제품을 생산하는 각 기관들이 안전에 관한 책임 있는 거버넌스(governance)를 구현하기 위해 현재 최선의 것으로 취할 수 있는(엄밀히 말해 취해야 하는) 윤리적인 행위 조치들과 이에 바탕이 되는 윤리적인 원리들을 살펴보고자 한다. 그리고 이것이 법적.제도적인 차원의 견고한 안전관리 체계를 구축하는데 중요한 한 축을 형성함을 강조하고자 한다.

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.

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.

21세기와 대학의 인문교육

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

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.

나노기술 기반 인간능력향상의 윤리적 수용가능성에 대한 일고찰

이중원(Jung Won Lee) 철학연구회 2009 哲學硏究 Vol.0 No.87

An human enhancement means the enhancement of physical and mental powers of human being. The revolution in the nano-, bio-, cognitive-technologies in the 21th century opens the new way for unimaginable development of human enhancement. Especially nanotechnology makes it possible to manipulate molecular-level materials much smaller than cells and to manufacture some kinds of new materials with special biological functions, so that a physical power and cognitive ability of human being are going to be increased rapidly with the help of nanotechnology. Maybe we will get to make a kind of superman or eugenical person in the future, even if not near. For this reason the nano-based human enhancement now becomes considerably disputable on whether it is ethically acceptable or not. Now there are lots of pros and cons arguments about this which, however, have following problems. Firstly it is not easy to defend or refute the nano-based human enhancement decisively regardless of which stance is taken. Secondly they have neglected or underestimated the potential risks of nanotechnology and the adverse effects on human body when nanomaterials are applied to the human enhancement. In this paper I will, first of all, analyse existing pros and cons arguments critically and elucidate their problems respectively. Secondly I will suggest a reasonable way reflecting the risk-problem of nanotechnology on those existing arguments ethically, that is, the precautionary principle. And by using it, I will also suggest a risk argument about nano-based human enhancement. Finally I will look around the meaning of this new argument, in the aspect of which changes it will bring in the existing arguments. Conclusively I will argue that new argument should be added to those existing arguments in order that the argumentation on ethical acceptability of nano-based human enhancement be more reasonable.

온도 의존성 열 특성 계수를 반영한 콘크리트의 열전도 해석 연구

이중원(Lee, Joong-Won),최광호(Choi, Kwang-Ho) 한국콘크리트학회 2007 한국콘크리트학회 학술대회 논문집 Vol.2007 No.5

건식벽체 조립용 인터락킹 벽돌의 형상별 강도특성

이중원 ( Lee Joong-won ),최광호 ( Choi Kwang-ho ) 한국구조물진단유지관리공학회 2022 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.26 No.2

지진하중에 저항하기 위해 골조에 채워진 기존 습식조적벽체의 강성저항을 조적벽체 간의 슬라이딩 수평거동이 가능하게 하여 골조의 연성거동을 개선하는 새로운 건식벽체 공법을 제안하고자 한다. 제안된 벽체공법은 모르타르를 사용하지 않고 벽돌간의 형상별 인터락킹으로 상하 조립되는 건식공법으로 습식 모르타르의 양생이 필요 없고 비숙력자도 쉽게 조립할 수 있는 장점이 있다. 다양한 형상을 갖는 인터락킹 벽돌을 설계하여 철재벽돌형틀을 이용하여 콘크리트벽돌을 제작하였고, 벽돌 형상별 강도실험을 수행하여 그 특성을 살펴보았다.

온라인 구전 특성이 시간 경과에 따라 영화 매출액에 미치는 영향: 한국과 미국의 차이

이중원 ( Jungwon Lee ),박철 ( Cheol Park ) 고려대학교 세종경영연구소 2022 경상논집 Vol.42 No.1

영화산업은 일반적으로 개봉 첫 주의 매출액과 인기가 가장 높지만, 온라인 구전으로 인해 일정 기간 이후 인기 순위를 경신하는 현상이 발생하고 있다. 하지만, 선행연구에서는 영화 개봉 전 소비자의 관심이 영화 초기 매출액에 미치는 효과를 분석하였을 뿐, 이후 기간에 대한 소비자의 관심이 미치는 효과에 관해서는 충분히 연구되지 않았다. 따라서 본 연구에서는 한국과 미국의 영화산업을 대상으로 온라인 구전특성이 시간에 따라 매출액에 미치는 효과의 변화를 분석하였다. The film industry generally has the highest sales and popularity in the first week of release, but there is a phenomenon that the popularity ranking is renewed after a certain period of time due to online word of mouth. However, previous studies have only analyzed the effect of consumer interest before a movie's release on the initial sales of a movie, but the effect of the later period has not been sufficiently studied. Therefore, in this study, we analyzed the change in the effect of online word-of-mouth characteristics on sales over time targeting the Korean and United States film industries.