• Title/Summary/Keyword: Kim Se Yeon

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Characterization of effects of cadmium selenide on the performance of poly(3-hexylthiophehe):[6,6]-phenyl $C_{61}$ butyric acid methyl ester organic solar cells (Cadmium selenide 영향에 따른 poly(3-hexylthiophehe):[6,6]-phenyl $C_{61}$ butyric acid methyl ester 유기태양전지 특성 분석)

  • Choi, Mijung;Park, Eungkyu;Yeon, Ik-Jun;Ko, Sung Sik;Kim, Yong-Sang
    • 한국신재생에너지학회:학술대회논문집
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    • 2011.11a
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    • pp.57.1-57.1
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    • 2011

  • We studied the performance of CdSe nanoparticle in the active layer of organic photovoltaics (OPVs) by changing concentration of the CdSe NPs in the P3HT:PCBM layer. We observed that the absorption peak value gradually increases with the increasing amount of CdSe NPs at 600nm wave length. However, the electrical properties of OPVs correspond less with the tendency of UV/visible result. The highest performance was shown with 10% of CdSe NPs. The device performance decreased after 10% of CdSe NPs, this shows the dependencies of performanc of hybrid solar cells on the CdSe NPs loading amount. The resulting OPVs with 10 % of CdSe NPs show a short circuit current density ($J_{sc}$) of $6.96mA/cm^2$, open circuit voltage ($V_{oc}$) of 0.61V, fill factor (FF) of 0.59, and power conversion efficiency (PCE) of 2.53% under AM 1.5 ($100mW/cm^2$).

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A case on the Evaluation of the Effectiveness of Model based Configuration Management System for Small/ Medium-Sized Plant (모델 기반 중소형 플랜트 형상관리 시스템의 효과성 평가 사례)

  • Ha, Ga Yeon;Kim, Jinil;Shin, Junguk;Yeom, Choong Sub
    • Journal of the Korean Society of Systems Engineering
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    • v.17 no.1
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    • pp.107-113
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    • 2021

  • Plant Configuration Management(CM) is an activity to maintain consistency of design requirements, physical configuration, facility configuration information throughout the life cycle of the plant by systematically managing changes that occur during the plant design and operation process. Conformity between information must be ensured not only in the design stage, but also in the case of design changes in the operation and maintenance stages, and thus a computer system capable of efficiently managing them is required. In particular, in consideration of an application to small and medium-sized domestic plants, a computer system that can support configuration management at a low cost is needed. Accordingly, in this study, a configuration management system has been developed to support the management of plant design information and change procedures in the operation stage of small and medium-sized plants. Here, a case for quantitatively evaluating the effectiveness of the developed system is described.

  • https://doi.org/10.14248/JKOSSE.2021.17.1.109 인용 PDF KSCI