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폐경기 여성의 호르몬 대치요법이 안구건조증상에 미치는 영향: 전향적 연구보고
문정현,정지웅,신경환,백혜정,Jung Hyun Moon,Jee Woong Jung,Kyung Hwan Shin,Hye Jung Paik 대한안과학회 2010 대한안과학회지 Vol.51 No.2
Purpose: To evaluate the effects of conjugated hormone replacement therapy (HRT) on dry eye syndrome in postmenopausal women. Methods: Thirty-six healthy postmenopausal women (72 eyes) were included in this three- month prospective study. Schirmer test, tear film break-up time (BUT), fluorescein staining score and symptom score were performed on all patients at the time of enrollment, one month and three months after initiation of HRT. All patients received HRT consisting of conjugated estrogen and progesterone taken orally in a continuous combined regimen. Results: Symptom score significantly decreased from 2.10±0.79 before HRT to 1.32±0.84 after one month and to 0.88±0.67 after three months (p<0.001). In addition, tear film BUT measurements significantly increased from 6.04±2.54 seconds to 7.99±2.43 seconds after one month and to 8.93±2.20 after three months (p<0.001). The fluorescein staining score was 0.94±0.71 before HRT and decreased to 0.42±0.60 after one month and to 0.22±0.42 after three months (p<0.001). Conclusions: Hormone replacement therapy consisting of conjugated estrogen and progesterone significantly improved the symptoms and signs of dry eye syndrome in postmenopausal women. J Korean Ophthalmol Soc 2010;51(2):175-179
문정현,심재성,정해준,서병기,Moon, Jung-Hyun,Shim, Jai-Sung,Bae, Jeong-Kwan,+Seo, Byung-Key 배재대학교 자연과학연구소 2002 自然科學論文集 Vol.12 No.1
The aim of this study was to analysis the landscape equipments of 42 school gardens in Taejon metropolitan city. Outdoor educational landscape equipments were found out at 10 schools out of 42 schools. The materials of main entrance were consisted of steel and stone at 19 schools. The stands at front of the main ground were existed at 21 schools. The pergolas and benches were existed at 20 schools. The living material fences were found out at 21 schools. Plant nameplates were found out at 22 schools. But the contents of the nameplates were so poor. The wetland and roof garden of the school were not existed. School landscape equipments should be introduced by the distinction of elementary school, middle school, and high school as well as by the space of the school site.
용체화처리한 AZ91-X%Sn 마그네슘 합금의 부식 저항성 변화
문정현 ( Jung Hyun Moon ),전중환 ( Joong Hwan Jun ) 한국열처리공학회 2015 熱處理工學會誌 Vol.28 No.5
The effects of Sn addition and solution treatment on corrosion behavior were studied in AZ91 magnesium casting alloy. The addition of 5%Sn contributed to the introduction of Mg2Sn phase, to the reduction in dendritic cell size and to the increase in the amount of secondary phases. After the solution treatment, trace amount of Al8Mn5 particles were observed in the α-(Mg) matrix for the AZ91 alloy, while Mg2Sn phase with high thermal stability was additionally found in the AZ91-5%Sn alloy. Before the solution treatment, the AZ91-5%Sn alloy had better corrosion resistance than the Sn-free alloy, which is caused by the enhanced barrier effect of the (β + Mg2Sn) phases formed more continuously along the dendritic cell boundaries. It is interesting to note that after the solution treatment, the corrosion rate of both alloys became increased, but the Sn-added alloy showed higher corrosion rate than the Sn-free alloy. The microstructural examination on the corroded surfaces revealed that the remaining Mg2Sn particles in the solution-treated AZ91-5%Sn alloy play a role in accelerating corrosion by galvanic coupling with the α-(Mg) matrix. (Received July 10, 2015; Revised July 31, 2015; Accepted August 6, 2015)
게이미피케이션을 활용한 주식 포트폴리오 분석 및 시각화 서비스
문정현(Jung-Hyun Moon),손재정(Jae-Jeong Sohn),유석종(Seok-Jong Yu) 한국정보기술학회 2022 한국정보기술학회논문지 Vol.20 No.1
Recently, as the stock market continues to boom, the number of investors participating in the stock market is increasing. Although investment should be able to understand the figures of various indicators for stocks, the interfaces and visualizations of existing stock platforms such as HTS and MTS make it difficult for novice investors to accept information. In this paper, we propose an analysis and visualization service for stock portfolio using gamification to compensate for these problems. It presented a stock market information platform that can effectively provide information on the stock market to novice investors in real time by designing information delivery through dynamic effects in the 3D environment with layering methods and providing information such as correlation indicators between social interst and stock indicators, sentiment indicator of stock using news article.
레스베라트롤 생산 GM벼가 곤충상 및 지표생물에 미치는 영향
문정현 ( Jung Hyun Moon ),문종민 ( Jong Min Moon ),이용훈 ( Yong Hoon Lee ),이종진 ( Jong Jin Lee ) 전북대학교 농업과학기술연구소 2013 농업생명과학연구 Vol.44 No.1
매년 급속도로 발전하는 농업생명공학과 형질전환 농작물의 증가는 인간의 건강과 자연환경에 대한 깊은 관심을 초래하였고 이에 대한 환경위험 여부를 확인하기 위해 형질 전환 식물체의 안전성 평가가 필요불가결 하게 되었다. 이에 본 연구는 레스베라트롤 생산 GM벼(익산515호, 익산526호)와 대조품종(동진벼, 남평벼)이 논생태계에서 곤충상과 지표 생물에 미치는 영향을 조사하는데 목적이 있다. 형질전환 GM벼와 대조품종간의 차이를 비교하기 위하여 유전자변형 식물을 검정할 수 있는 시설이 갖추어진 벼 품종을 재배하였으며, 곤충의 발생량과 생존률 및 지표생물의 안전성을 조사 하였다. 벼멸구 성충의 생존률과 기주선호도 조사 결과, 4가지 벼 품종에서 유의성 있는 차이를 나타내지 않았다. 동시에 미꾸리이 이상행동, 유영저해정도 및 생존률과 왕우렁이의 이상행동, 무게 및 각고길이의 변화 또한 4가지 벼 품종에서 어떤 차이도 없는 것으로 확인되었다. 따라서 레스베라트롤 생산 GM벼가 실험실과 포장조건에서 곤충다양성, 천적량 및 지표생물에 아무런 유해한 영향을 미칠만한 기작을 갖지 않는 것으로 판단된다 The fast-growing agricultural biotechnology and rapidly increasing global area of transgenic crops every year have caused concern about human health and natural environment. Thus, the establishment of various techniques for the environmental risk assessment is necessary for the evaluation of transgenic plants. The objective of this study was to evaluate resveratrol-producing GM rice varieties such as Iksan515 and Iksan526 and non-transgenic rice varieties such as Dongjin and Nampyeong on insects fauna including spiders and bio-indicators. To compare with transgenic rice with non-transgenic rice plants, we cultivated both rice varieties in the confined fields and surveyed the occurrence and survivals of the insects and bio-indicators. The biosafety on bio-indicators was also investigated. When survival rate, host preference and abnormal response of Nilaparvata lugens adults were studied, there was no significant difference among the four rice varieties investigated. At the same time, there was no significant difference in abnormal response, immobility and survival rate of Misgurnus anguillicaudatus as well as immobility, weight and shell height of Pomacea canaliculata among the four rice varieties investigated. Overall, the results in this study indicated that the transgenic rice plants did not exert any hazardous impacts on insect diversities, natural enemies, and bio-indicators in both of laboratory and natural conditions.
어플리케이션을 이용한 안면마비 측정 예비 임상연구 프로토콜
문정현(Jeong Hyun Moon),박경은(Gyoung Eun Park),박시현(Si Hyun Park),성원석(Won Suk Sung),김영수(Young Soo Kim),김은정(Eun Jung Kim) 대한모유수유한의학회 2023 nipple confusion,breastfeeding consultation,IBCLC, Vol.4 No.1
Purpose: Facial palsy is one of the major disease that patients want to be treated by Korean medicine nowadays. Unfortunately, however, it is difficult to quantitatively measure symptoms of facial palsy. This study intends to measure facial movements and detect data through algorithms, compare and analyze them with the evaluation of Korean medicine doctors, and use them as basic data for application development. Methods and Results: This is a protocol for the study of 3D videography of facial movement and analyzing algorithms. A total of 50 eligible participants with facial palsy will be recruited from Dongguk University Bundang Hospital. The trial will include two steps of screening and assessment. All particiapants will be informed to answer basic facial palsy questionnaire and the facial disability index (FDI) questionnaire. Then, they will proceed with videography. Several Korean medicine doctors will evaluate participant's Housebrackman grade, Yanagihara score and Sunnybrook scale based on the video records. Also, through the recorded actual facial movements, algorithms will detect the datas. Finally it will be compared and analyzed with the evaluation of Korean medicine doctors. Conclusion: The result of this trial will provide a basis for the quantitative measurement of facial palsy, supplementing errors in existing facial paralysis diagnosis in clinical settings. Trial Registration: This protocol has been registered in the Clinical Research Information Service (CRIS) with the identification code KCT0008882.
생체인증을 위한 프라이버시 중심 설계와 보안사용성에 대한 연구
문정현 ( Jung-hyun Moon ),김예은 ( Ye-eun Kim ),최수빈 ( Su-bin Choi ),이일구 ( Il-gu Lee ) 한국정보처리학회 2021 한국정보처리학회 학술대회논문집 Vol.28 No.2
최근 편리하고 안전한 생체인증 기술이 핀테크 서비스의 필수 구성요소가 되고 있다. 그러나 생체 인증의 보안성과 정확도 향상을 위해 많은 양의 생체 정보를 활용한다면 연산과정이 복잡해져서 속도 저하와 개인정보 유출 가능성이 높아지고, 실시간성을 제공하기 위해 생체 정보의 일부만 샘플링하여 활용하는 경우에는 보안성과 정확도가 열화되는 Trade-off 문제가 있다. 종래의 생체인증 기술은 메타데이터를 이용한 필터링의 경우 데이터 간의 상관성이 고려하지 않아서 개인정보보호와 사용자 편의성에 한계가 있었다. 본 연구에서는 상관성 높은 데이터를 활용하여 프라이버시 중심의 생체인증 설계와 보안사용성을 향상시키는 방안을 제안한다.