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안민용(Min-Yong Ahn),배성렬(Sung-Ryul Bae),박영재(Young-Jae Park),장윤석(Yoon-Suk Chang),최재붕(Jae-Boong Choi),김영진(Young-Jin Kim),정명조(Myung-Jo Jhung),최영환(Young-Hwan Choi) 대한기계학회 2004 대한기계학회 춘추학술대회 Vol.2004 No.11
In general, major components of nuclear power plant have been evaluated based on 2-dimensional design codes conservatively. However, more exact assessment is necessary for continued operation beyond the design life. In this paper, 3-dimensional stress and fatigue analyses reflecting full geometry and monitored operating condition of reactor pressure vessel have been carried out. The analyses results showed that conservatism of current 2-dimensional evaluation based on design transient. Therefore, it is anticipated that the schemes developed from this research such as 3-dimensional finite element modeling, stress analysis and fatigue analysis related techniques can be utilized as fundamental tools for exact lifetime evaluation and license renewal of major nuclear components.
남자 대학생에게 실시한 인유두종바이러스 예방접종 교육의 효과
안민권(Ahn, Min Kweon),양수정(Yang, Soo Jeong) 학습자중심교과교육학회 2019 학습자중심교과교육연구 Vol.19 No.19
본 연구는 인유두종바이러스(HPV) 예방접종 교육이 남자 대학생의 HPV 지식, HPV 예방접종 관련 건강신념, HPV 예방접종 의도에 미치는 영향을 알아보기 위하여 비동등성 대조군 전후설계를 이용한 유사 실험연구이다. 2019 년 6월 7일부터 14 일까지 자료를 수집하였고 실험군 30명, 대조군 30명, 총 60명의 남자 대학생이 본 연구에 참여하였다. HPV 지식, HPV 예방접종 관련 건강신념, HPV 예방접종 의도는 구조화된 설문지를 사용하여 측정되었으며, 수집된 자료는 SPSS/WIN 25.0으로 분석하였다. 연구 결과 HPV 예방접종 교육을 받은 실험군과 대조군의 HPV 지식(F=101.59, p<.001), HPV 예방접종 관련 건강신념(t=5.90, p<.001), HPV 예방접종의도(F=135.81, p<.001)는 유의한 차이가 있었다. 이 연구의 결과는 남자 대학생의 HPV 지식, HPV 예방접종 관련 건강신념, HPV 예방접종 의도를 향상시키기 위해서는 HPV 예방접종 교육을 실시할 필요가 있음을 나타낸다 This study is a nonequivalent control group pretest-posttest design quasi experimental study using HPV vaccination education to determine the effect of HPV vaccination, health beliefs related to HPV vaccination, and HPV vaccination intention on male college students. Data were collected from June 7 to 14, 2019. A total of 60 male college students participated in this study, 30 in the experimental group and 30 in the control group. HPV knowledge, health beliefs related to HPV vaccination, HPV vaccination intention were measured using a structured questionnaire and the collected data were analyzed by SPSS/WIN 25.0. The results were as follows: HPV knowledge(F=101.59, p<.001), HPV vaccination related health beliefs(t=5.90, p<.001), HPV vaccination intention(F=135.81, p<.001) were significantly different. The results of this study suggest that HPV vaccination education is needed to improve HPV knowledge, health beliefs related to HPV vaccination, and HPV vaccination intention.
실험을 통한 창호시스템에 의한 냉난방부하 및 냉난방에너지 소비 특성 평가
안민철(Ahn, Min-Chul),정창호(Jeong, Chang-Ho),김태현(Kim, Tae-Hyun),김화국(Jin, Hua-Guo),박재성(Park, Jae-Sung),여명식(Yeo, Myoung-Souk),김광우(Kim, Kwang-Woo) 한국건축친환경설비학회 2012 한국건축친환경설비학회 학술발표대회 논문집 Vol.2012 No.10
To predict the thermal performance of the window systems generally is calculated based on the glass U-value. However, there is a limit to predict the thermal performance with a glass because the window system consists of the glass, frame, and other parts. This study analyzes a difference between prediction of theoretical value based on the glass U-value and actual value through window systems experiment. To achieve this purpose of study, we calculated maximum heating and cooling loads based on each window systems glass U-value and we built laboratory to adjust the room temperature conditions. This experiment analyzed moment of maximum heating and cooling loads by window systems and heating and cooling energy consumption reduction effect for loads handling.
안민원(Min Won Ahn),김소희(So Hee Kim),이종수(Jong Soo Lee) 대한안과학회 2018 대한안과학회지 Vol.59 No.6
목적: 인공수정체 혼탁으로 오인된 지연 낭폐쇄증후군 1예에 대한 진단 및 치료경험을 보고하고자 한다. 증례요약: 59세 남자가 1년 전부터 진행된 우안 시력저하를 주소로 내원하였다. 고혈압 외에는 특이병력이 없었으며, 10년 전 타 병원에서 양안 백내장수술을 받았다. 안과 개인의원에서 우안 인공수정체 변성으로 인한 혼탁으로 진단받고 인공수정체 교체를 위해 본원으로 전원되었다. 내원 당시 나안시력은 0.06이며, 안압은 22 mmHg, 굴절력은 인공수정체 부위의 혼탁 때문에 측정되지 않았다. 세극등현미경검사에서는 인공수정체의 부위가 우유빛 변성으로 관찰되었다. 전안부 빛간섭광학단층촬영에서 인공수정체 뒤쪽 고반사 물질의 저류가 관찰되었고, 초음파생체현미경검사에서는 수정체 후낭의 팽창이 확인되었다. Neodymium-doped yttrium aluminium garnet (Nd:YAG) 레이저 후낭절개술을 시행한 후 합병증 발생 없이 나안시력이 1.0으로 호전되었다. 결론: 낭폐쇄증후군은 백내장수술 후 1일에서 2주 사이에 드물게 발생하는 합병증인데, 술 후 10년이 지나서도 발생하는 지연 낭폐쇄증후군은 전형적인 임상양상과 달리 나타나기에 인공수정체의 변성으로 인한 혼탁과 감별이 매우 중요하다. Purpose: We report a case of late-onset capsular block syndrome, which resulted in a misdiagnosis of intraocular lens (IOL)opacity. Case summary: A 59-year-old man visited our clinic with reduced visual acuity in the right eye from 1 year prior. He had undergone uncomplicated bilateral cataract surgery by phacoemulsification with IOL implants at another hospital 10 years before. There was no specific history with the exception of hypertension. After being diagnosed in the ophthalmology clinic with IOL degeneration and opacity in the right eye, he was referred to our hospital for IOL replacement. Upon examination, his right uncorrected visual acuity was 0.06 and intraocular pressure was 22 mmHg. The refractive error could not be checked due to IOL opacity. Slit-lamp microscopy revealed a cloudy, milky IOL. Anterior-segment optical coherence tomography of the right eye showed retention of a highly reflective material in the lens capsule behind the IOL. Posterior capsule enlargement of the right eye was confirmed on ultrasound biomicroscopy. After neodymium-doped yttrium aluminium garnet (Nd:YAG) laser capsulotomy was performed, the homogeneous space disappeared and the eye recovered normal visual acuity. Conclusions: Capsular block syndrome is a rare complication that can occur shortly (1 day to 2 days) after cataract surgery. Late-onset capsular block syndrome, which occurs 10 years after surgery differs from typical clinical manifestations. Thus, capsular block syndrome is an important consideration upon the presentation of opacification due to IOL degeneration.