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코우츠병 환자에서 레이저광응고술 시행 후 자연 치유된 황반 망막 전막 1예
이나은,정인영,서성욱,박종문,송준경,Na Eun Lee,MD,In Young Chung,MD,PhD,Seong Wook Seo,MD,Jong Moon Park,MD,PhD,Jun Kyoung Song,MD,PhD 대한안과학회 2010 대한안과학회지 Vol.51 No.4
Purpose: To report a patient with Coats’ disease who presented with a premacular membrane that was peeled off after laser photocoagulation. Case summary: A 17-year-old male presented with decreased visual acuity of the right eye, and showed serous elevation, subretinal hemorrhage, telangiectasis and thick premacular membrane upon fundus examination. Upon diagnosis with Coats’ disease, the telangiectatic area was treated with argon laser photocoagulation. Two weeks later, the premacular membrane was peeled off spontaneously and the decrease of macular thickness was verified by optical coherence tomography (OCT). The patient’s visual acuity was improved to 1.0. Conclusions: The visual acuity of the patient with Coats’ disease was improved by spontaneous peeling of the premacular membrane after photocoagulation. J Korean Ophthalmol Soc 2010;51(4):623-625
이나은,박종문.Na Eun Lee. MD. Jong Mun Park. MD. PhD. 대한안과학회 2011 대한안과학회지 Vol.52 No.10
Purpose: To evaluate the clinical characteristics of bacterial culture, and visual outcome in patients with acute endophthalmitis. Methods: Clinical records of patients treated for acute endophthalmitis in GNUH from 2000 to 2009 were reviewed. The specimens for culture were obtained from the anterior chamber or vitreous. Clinical outcome measures were bacterial culture, culture rate, and final visual acuity. Results: Cultures (total 59 cases) showed bacterial growth in 37 cases (63%). Among 35 cases vitreous specimens, bacteria growth was found in 22 cases (63%), and from the 27 anterior chamber specimens, 12 cases (44%) were culture positive. From these 37 bacterial-positive cultures, 11 (30%) were coagulase negative Staphylococcus species, 16 (43.0%) were other Gram-positive species, 9 (24%) were Gram-negative species, and 1 (3%) produced a polymicrobial culture. Final visual acuity above 0.5 was achieved in 16 of 59 (27%) cases and coagulase negative <em>Staphylococcus</em> species had the greatest proportion being 5 of 11 (45%). Conclusions: The bacterial culture positivity rate in bacterial endophthalmitis was 63%, and the culture yield rate from the vitreous was higher than the anterior chamber aqueous samples. Coagulase negative <em>Staphylococcus</em> species were the most common causative organisms and showed the best final visual outcome in endophthalmitis. J Korean Ophthalmol Soc 2011;52(10):1173-1181
기존건물의 시뮬레이션 및 실측 데이터를 활용한 냉방에너지 절감방안 연구
이나은(Lee, Na-Eun),한혜심(Han, Hye-Sim),안병립(Ahn, Byung-Lip),정학근(Jeong, Hak-Geun),장철용(Jang, Cheol-Yong) 대한건축학회 2013 대한건축학회논문집 Vol.29 No.4
Despite of government’s continued support for building sector, Korea lacks practical technology for building energy management. To achieve this, first of all the system that measures and manages actual building energy is necessary. But, in the case of existing buildings, only a few buildings are equipped with these systems. In this study, First, meters were installed inside a building to measure and manage existing building’s energy consumption. Second, improvement measures that can reduce energy consumption were identified by analyzing the measured data. Finally, it is suggested the ways to save energy of building. The result of this study, the case applied blinds and daylight control has energy savings up to 7.8% and keeps down electric charges about 76 million won.
요석증이 초기 증상으로 발현된 제1형 다발성 내분비 선종이 동반된졸링거 엘리슨 증후군
이나은 ( Na Eun Lee ),이영재 ( Young Jae Lee ),윤소희 ( So Hee Yun ),이재운 ( Jae Un Lee ),박문식 ( Moon Sik Park ),김중근 ( Joong Keun Kim ),김지웅 ( Ji Woong Kim ),조진웅 ( Jin Woong Cho ) 대한소화기학회 2013 대한소화기학회지 Vol.61 No.6
Zollinger-Ellison syndrome (ZES) is characterized by gastrinoma and resultant hypergastrinemia, which leads to recurrent peptic ulcers. Because gastrinoma is the most common pancreatic endocrine tumor seen in multiple endocrine neoplasia type I (MEN 1), the possibility of gastrinoma should be investigated carefully when patients exhibit symptoms associated with hormonal changes. Ureteral stones associated with hyperparathyroidism in the early course of MEN 1 are known to be its most common clinical manifestation; appropriate evaluation and close follow-up of patients with hypercalcemic urolithiasis can lead to an early diagnosis of gastrinoma. We report a patient with ZES associated with MEN 1, and urolithiasis as the presenting entity. A 51-year-old man visited the emergency department with recurrent epigastric pain. He had a history of calcium urinary stone 3 years ago, and 2 years later he had 2 operations for multiple jejunal ulcer perforations; these surgeries were 9 months apart. He was taking intermittent courses of antiulcer medication. Multiple peripancreatic nodular masses, a hepatic metastasis, parathyroid hyperplasia, and a pituitary microadenoma were confirmed by multimodal imaging studies. We diagnosed ZES with MEN 1 and performed sequential surgical excision of the gastrinomas and the parathyroid adenoma. The patient received octreotide injection therapy and close follow-up.
로이유리 발코니 창호의 단열성능에 따른 공동주택 건축물 에너지효율등급 평가 연구
이나은(Lee Na-Eun),안병립(Ahn Byung-Lip),장철용(Jang Cheol-Yong),이승복(Leigh Seung-Bok) 한국태양에너지학회 2012 한국태양에너지학회 논문집 Vol.32 No.2
As the exterior of building has been considered one of the important parts, the use of glass that is suitable to express various appearances gets raised. However, windows have 6~7 times lower insulating performance than insulated walls. Lately, highly efficient windows are required as the needs for reduction of energy consumption come to the force. Therefore, Nowadays more people use cooling systems in summer, more the use of Low-E glazing is increasing. Because it is good to block Solar Radiant Energy which can cause much of heat loss while cooling system is working. This study measures U-value of the double Low-E glazing window and commonly used single Low-E glazing window. And then the effect of each window on the efficiency rating has been analyzed applying to the certification system of the building energy efficiency rating which has implemented.
신재생 에너지가 도입된 전력저장장치의 첨두부하절감 효과를 고려한 최적 구성 알고리즘
이나은(Na-Eun Lee),김욱원(Wook-Won Kim),김진오(Jin-O Kim) 대한전기학회 2014 전기학회논문지 Vol.63 No.9
A power system configuration has been increasingly advanced with a number of generating units. In particular, renewable energy resources are widely introduced due to the environmental issues. When applying the renewable energy sources with the ESS (Energy Storage System), the ESS is the role of a potential generating resource in the power system while mitigating the output volatility of renewable energy resources. Thus, for applications of the ESS, the surrounding environment of it should be considered, which means that capacity and energy of the ESS can be affected. Moreover, operation strategy of the ESS should be proposed according to the installation purpose as well as the surrounding environment. In the paper, operation strategy of the ESS is proposed considering load demand and the output of renewable energy resources on a hourly basis. Then, the cost of electrical energy is minimized based on the economic model that consists of capital cost, operation cost, fuel cost, and grid cost for a year. It is sure that peak-shaving effects can be achieved while satisfying the minimum cost of electrical energy.
더블 로이유리 적용 복층창의 구성에 따른 단열성능 평가
이나은(Na-Eun Lee),장철용(Cheol-Yong Jang),안병립(Byung-Lip Ahn),김치훈(Chi-Hoon Kim),한혜심(Hye-Sim Han),이승복(Seung-Bok Leigh) 대한설비공학회 2011 대한설비공학회 학술발표대회논문집 Vol.2011 No.7
As the exterior of building has been considered one of the important parts, the use of glass that is suitable to express various appearances gets raised. However, windows posses insulating quality which is 6~7 times lower than walls. Lately, highly efficient windows are required as the needs for reduction of energy consumption come to the force. Therefore, Nowadays more people use cooling systems in summer, more the use of Low-e glazing is increasing. Because ir is good to block Solar Radiant Energy which can cause much of heat loss while cooling system is working. Accordingly, in this study, after making sample in order to let the Double Low-e glazing applied to windows, we evaluated thermal performance with TVS and U-value measurement chamber.