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인천광역시 원도심 공원녹지 기본계획 현황 및 이용 평가
이석현,김하늘,곽동화,Lee, Seok-Hyun,Kim, Haneul,Kwack, Dongwha 인천대학교 도시과학연구원 2018 도시과학 Vol.7 No.2
The purpose of this study is to review and evaluate the proper planning for 2030 Incheon Urban Parks & Green Space Master Plan. Some of the plans are aimed at multiple small districts within the city's old town, as local governments are planned to be sub-subsidized by Incheon Metropolitan City. However, these plans have become simple plans for each district and therefore find it difficult to collect from the perspective of the using system of the residents who are directly used. First, the construction of the urban park and green space network requires the construction of a service using system that can be felt by the users. Second, the basic idea of each district planned as the detailed strategy of the master plan should be planned through consultation with nearby the district. Third, specific targets and directions for the urban park and green space plan through the urban development project are needed.
동결-해동-원심분리를 이용한 무세포 돼지각막의 특성 연구
이석현,전연숙,김재찬.Seok Hyun Lee. MD. Yeoun Sook Chun. MD. Jae Chan Kim. MD. PhD 대한안과학회 2011 대한안과학회지 Vol.52 No.1
Purpose: To develop a new decellularization technique of porcine cornea using freezing-thawing-centrifugation (FTC) and to examine the characteristics of acellular porcine cornea (APC) for xenograft material. Methods: Two-hundred micrometer thickness porcine corneas were decellularized with DNase/RNase, followed by 3 freezing-thawing-centrifugations (FTC, group 1), lyophilized FTC-APC (group 2), and chemical enzyme treated APC (CE-APC, group 3). Histologic evaluation to examine cells and collagen matrix, comparison of transparency, and cultivation to determine the viability of stromal cells was performed in fresh porcine cornea and 3 experimental groups. Results: Decellularization occurred successfully in all experimental groups. Decellularization was confirmed by H&E staining and cultivation. Transparency of group 1 was similar to the normal porcine cornea but transparency of group 2 and group 3 was decreased. Collagen fibers of CE-APC (group 3) were not as well arrayed as FTC-APC (group 2). Conclusions: Acellularity of porcine cornea was successfully achieved by the FTC method with preservation of the cornea stroma. Novel decellularized porcine cornea can be considered as xenogeneic material for corneal transplantation. J Korean Ophthalmol Soc 2011;52(1):86-92
하이알로매트릭스를 이용한, 두개골결손을 동반한 선천성피부무형성증의 치료: 1례 보고
이석현,홍종원,노태석,김영석,나동균,Rhee, Suk-Hyun,Hong, Jong-Won,Roh, Tai-Suk,Kim, Young-Seok,Rah, Dong-Kyun 대한성형외과학회 2010 Archives of Plastic Surgery Vol.37 No.4
Purpose: Aplasia Cutis Congenita (ACC) is a rare disease characterized by the focal defect of the skin at birth, frequently involving scalp, but it may affect any region of the body. There are no etiology known but some conditions such as intrauterine vascular ischemia, amniotic adherences and viral infections are associated. The ideal treatment for the ACC is not known. Superficial and relatively small sized defects (< $3{\times}5\;cm$) may heal spontaneously and large defects related with risks of infection and bleeding may require aggressive surgical treatment. Hyalomatrix$^{(R)}$ is a bilayer of an esterified hyaluronan scaffold beneath a silicone membrane. It has been used as a temporary dermal substitute to cover deep thickness skin defect and has physiological functions derive from the structural role in extracellular matrix and interaction with cell surface receptor. This material has been used for the wound bed pre-treatment for skin graft to follow and especially in uncooperative patient, like a newborn, this could be a efficient and aseptic way of promoting granulation without daily irritative wound care. For this reason, using Hyalomatrix$^{(R)}$ for the treatment of ACC was preferred in this paper. Methods: We report a case of a newborn with ACC of the vertex scalp and non-ossified partial skull defect. The large sized skin and skull defect ($6{\times}6\;cm$) was found with intact dura mater. No other complications such as bleeding or abnormal neurologic sign were accompanied. Escharectomy was performed and Hyalomatrix$^{(R)}$ was applied for the protection and the induction of acute wound healing for 3 months before the split-thickness skin graft. During the 3 months period, the dressing was renewed in aseptic technique for every 3 weeks. The skin graft was achieved on the healthy granulation bed. Results: The operative procedure was uneventful without necessity of blood transfusion. Postoperative physical examination revealed no additional abnormalities. Regular wound management was performed in out-patient clinic and the grafted skin was taken completely. No other problems developed during follow-up. Conclusion: Hyalomatrix$^{(R)}$ provides protective and favorable environment for wound healing. The combination of the use of Hyalomatrix$^{(R)}$ and the skin graft will be a good alternative for the ACC patients with relatively large defect on vertex.
이석현,김재훈,김지택,전연숙,김재찬,Seok Hyun Lee,Jae Hoon Kim,Jee Taek Kim,Yeoun Sook Chun,Jae Chan Kim 대한안과학회 2008 대한안과학회지 Vol.49 No.7
Purpose: To report a case of ocular surface reconstruction using nasal and oral mucosa auto grafts on a man whose ocular surface was deformed by a chemical burn. Case summary: A 48-year-old man was injured when his right eye was exposed to alkali solution. He underwent fifteen operations, including amniotic membrane auto grafts and fornix reconstructions. However, his right eye still suffered from symble pharon, drying, corneal neovascularization, and erosion. We performed ocular surface reconstruction with free autologous nasal and oral mucosal transplantation and amniotic membrane graft. By one month after surgery, his eye showed no evidence of symble pharon or fibrovascularization recurrence on the cornea or conjunctiva. By six months after surgery, his ocular surface had stabilized. Conclusions: Ocular surface reconstruction with free autologous nasal and oral mucosal transplantation is a useful method on eyes that are injured by chemical burns. J Korean Ophthalmol Soc 49(7):1177-1182, 2008
이석현(Lee, Seok-Hyun),채진해(Chae, Jin-Hae) 대한건축학회 2013 대한건축학회논문집 Vol.29 No.9
Recently, the community design through residents" voluntary participation is spreading all over the nation and contributing to development local cultural environment. The purpose of this study is the proposal of effective evaluation methods and verified achievement characteristics for community design participants based on local environment and methods. A case study carried out Siheung City"s "Hope Community Design" project, which promoted the area"s regeneration through the participation of the local community. Through this research, we gained achievement characteristics based on characteristic of participants and an improvement direction on local community design. Meanwhile, sustainable community design need to sustainable activities and managements of community organization more. We expect that this study can contribute to the improvement of the evaluation methods of community design for developing a pleasant and attractive residential environment.
이석현 ( Seok-hyun Lee ) 중앙대학교 예술문화연구원 2016 예술문화융합연구 Vol.4 No.-
The purpose of this open space design is to adapt a communication design concept to a regeneration of an old town that has a common space and a emptiness for a neighborhood activity. The place is located within the entrance to the site called by 'Ma-seok market' in Hwa-do, Namyangju City. The design plan has two spatial compositions. ① Maseok market on a crossroad is focused on the creation of the community space for merchants and residents. Especially, the open space for the common place is formed into design structures using regional sources-colors, materials, and shapes. ② The market place is designed for a daily function such as a walk 'promenade' and service facilities. Designs practically have been applied installations such as lights, benches, paving, fences, and etc to accommodate residents' needs and demands.