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Shingled 모듈 적용을 위한 태양전지 전극 구조 최적화
오원제,박지수,황수현,이수호,정채환,이재형,Oh, Won Je,Park, Ji Su,Hwang, Soo Hyun,Lee, Su Ho,Jeong, Chae Hwan,Lee, Jae Hyeong 한국전기전자재료학회 2018 전기전자재료학회논문지 Vol.31 No.5
The shingled photovoltaic module can be produced by joining divided solar cells into a string of busbarless structure and arranging them in series and parallel to produce a module, in order to produce a high output per unit area. This paper reports a study to optimize solar cell electrode structure for shingled photovoltaic module fabrication. The characteristics of each electrode structure were analyzed according to the simulation program as follow: 80.62% fill factor in the six-junction solar cell electrode structure and 19.23% efficiency in the five-junction electrode structure. Therefore, the split electrode structure optimized for high-density and high-output shingled module fabrication is the five-junction solar cell electrode structure.
고유수용성신경근촉진법 운동과 스위스 볼 운동을 적용 했을 때 정적 균형에 미치는 영향
최원제,전재근,이우영,김기범,주혜미,박소희,변주형,손경현,김봉환,Choi, Won-Jye,Jeon, Jae-Keun,Lee, Woo-Young,Kim, Ki-Bum,Ju, Hye-Mi,Park, So-Hee,Byun, Ju-Hyung,Son, Kyung-Hyun,Kim, Bong-Hwan 대한고유수용성신경근촉진법학회 2010 PNF and Movement Vol.8 No.2
Purpose : The purpose of study was to determine effects of Proprioceptive Neuromuscular Facilitation pattern exercise with Swiss ball exercise and Swiss ball exercise on balance in the 40 students from H university. Method : There were two experimental conditions. There were two difference groups in the experimental conditions, which had to perform different exercise tasks: Swiss ball exercise group (n=20) and Proprioceptive Neuromuscular Facilitation exercise with Swiss ball exercise group(n=20). The experimental group received Proprioceptive Neuromuscular Facilitation exercise for 20minutes and Swiss Ball exercise for 40minutes, 3 times a week for 4weeks. While another experimental group received Swiss Ball exercise for 40minutes, 3 times a week for 4weeks. In order to evaluation effects of the Proprioceptive Neuromuscular Facilitation pattern exercise with Swiss Ball exercise and Swiss Ball exercise in the two different experimental group, subjects was measured by static balance. Statistical analysis was the paired t-test to compare the differences within groups and the SPSS to analyze the differences between groups. Results : The result of this study were as follows: The static balance was higher for the two different experimental group in post-exercise than in pre-exercise(P<0.5). Proprioceptive Neuromuscular Facilitation pattern exercise with Swiss Ball exercise experimental group was significant difference better then another experimental group(P<0.5). Conclusion : The Proprioceptive Neuromuscular Facilitation pattern exercise with Swiss Ball exercise can result in improved static balance better then Swiss Ball exercise.
박지수,황수현,오원제,이수호,정채환,이재형,Park, Ji Su,Hwang, Soo Hyun,Oh, Won Je,Lee, Su Ho,Jeong, Chae Hwan,Lee, Jae Hyeong 한국전기전자재료학회 2018 전기전자재료학회논문지 Vol.31 No.5
In this work, we conducted a study on cell strings of high efficiency and high power solar cell modules via simulation. In contrast to the conventional module manufacturing method, the simulation was performed by connecting cutting cells divided into four parts from 6-in size using the electrically conductive adhesive (ECA). The resistance of the ECA added in series connection was extracted using an experimental method. This resistance was found to be $3m{\Omega}$. Based on this simulation, we verified the change in efficiency of the string as a function of the number of cutting cell connections. Consequently, the cutting cell efficiency of the first 20.08% was significantly increased to 20.63% until the fifth connection; however, for further connections, it was confirmed that the efficiency was saturated to 20.8%. Connecting cutting cells using ECA improves the efficiency of the string; therefore, it is expected that it will be possible to fabricate modules with high efficiency and high power.
아조벤젠 분자(Disperse Red 1)를 포함한 측쇄형 고분자에서 광유도 복굴절의 실시간적 조사
신희득,주원제,오차환,송석호,김필수,한양규 한양대학교 자연과학연구소 2001 自然科學論文集 Vol.20 No.-
아조벤젠 그룹을 포함한 측쇄형 고분자 필름(PDR1)에서 광 유도된 이방성을 실시간적으로 조사하였다. 수평, 수직한 흡수율의 변화를 광 유도된 복굴절의 기록, 감쇠, 소거, 완화 과정에 따라 측정하여, 매질 내의 아조벤젠 분자의 정렬상태와 복굴절과의 관계를 광 이성화과정으로 설명하였다. 또한 기록빔의 세기를 따른 수직, 수평한 흡수율의 변화와 유도된 복굴절의 관계를 조사하였다. The photo-induced anisotropy for a polymeric film(PDR1) containing azobenzene group as side-chain was investigated dynamically. The change of absrobances with parallel and perpendicular components was measured in recording, decaying, erasing and relaxation processes of photo-induced birefringence, so the relation between the alignment of azobenzene groups and the birefringence was well explained according to the photo-isomerization. Also, the dependence of the photo-induced birefringence on intensity of recording beam was investigated with changes of both absorbance and birefringence.