1P-443 : Enhanced power conversion efficiency of ZnO-based solar cells by increasing amount of dye adsorption using electrophoretic method

박성주,백건욱,류경범,황태원,이상주,한윤수 한국공업화학회 2018 한국공업화학회 연구논문 초록집 Vol.2018 No.0

Zinc oxide (ZnO) has a band gap energy of 3.3 eV, which is similar to that of TiO₂ used as a n-type semiconductor in solar cells, and has higher electron mobility than TiO₂. Thus, ZnO film can act as the n-type semiconductor in solar cells. However, ZnO-based solar cells suffer from low power conversion efficiency, because Zn²⁺/dye complex is formed during prolonged sensitization process. The complex could hinder electron injection from excited dye to ZnO. In this study, electrophoretic technique was applied to increase dye-loading amount in a short sensitization time. The dye-loading amount by electrophoretic method for 20 min was increased by 2.18x10^-5mol/㎤, compared to that (1.56x10^-5mol/㎤) by conventional soaking process for the same time. This led to an increase in power conversion efficiency of ZnO-based solar cells.

클라이언트 - 서버 환경에서의 개방형 업무흐름자동화시스템

박성주,조계현,김종우,이하빈,김규중 한국경영정보학회 1995 한국경영정보학회 학술대회논문집 Vol.1995 No.1

융복합시대 기숙사 고등학생의 학교적응에 자아탄력성과 사회적 지지가 미치는 영향

박성주 한국디지털정책학회 2016 디지털융복합연구 Vol.14 No.2

이 연구의 목적은 융복합시대 기숙사 고등학생들의 학교적응에 자아탄력성과 사회적지지가 미치는 영향을 살펴보고자 하였다. 조사대상은 D지역 소재 자율형 사립고등학교에 재학 중인 고등학생 358명을 대상으로 설문조사 하였다. 수집된 자료는 SPSS WIN 20.0을 사용하여 회귀분석을 실시하여 분석하였다. 그 결과 자아탄력성은 학교 적응에 정(+)의 영향을 미치고 있으며, 하위요인인 낙관성, 호기심, 감정통제 역시 정(+)의 영향을 미치고 있는 것으로 나타났다. 또한 사회적지지도 학교적응에 정(+)의 영향을 미치고 있으며, 하위요인인 친구지지와 교사지지 역시 정(+)의 영향을 미치고 있는 것으로 나타났다. 따라서 디지털융복합시대를 살고 있는 고등학생들이 학교부적응에 따라 발생할 수 있는 다양한 문제들을 예방할 수 있도록 자아탄력성을 향상시키며, 사회적지지를 제공할 수 있는 다양한 프로그램과 학교 문화를 만들어 간다면, 개개인의 학생뿐만 아니라 학교와 가정, 나아가 사회 전반적인 부분에 있어 긍정적인 영향을 미칠 수 잇을 것으로 사료되며, 다양한 학제간 융합연구를 통해 추후 종단연구의 기반이 될 것이다. This study aims to look into the effects of ego-resilience and social support on school adjustment of dormitory high school students in the convergence age. For achieving this purpose, a survey with 358 students in an autonomous private high school situated in D area was conducted. For analysis of the collected data, regression analysis was carried out using SPSS WIN 20.0. As a result, it was found that ego-resilience positively affected school adjustment, and optimism, curiosity and emotional control, which are sub-factors of ego-resilience, positively affected it, too. Also, social support positively influenced school adjustment, and peer support and teacher support that are sub-factors of social support, positively influenced it, too. Therefore, it is considered that developing various programs and school culture for improving ego-resilience and providing social support to prevent a lot of problems caused by school maladjustment of high school students in the digital convergence era will positively influence individual students, schools, families and furthermore general sections of the society, and diverse interdisciplinary convergence studies on this will serve as the foundation for future longitudinal research.

미국의 또 다른 세계 아미쉬

박성주 대한지방행정공제회 2016 도시문제 Vol.51 No.575

KAIST Intelligent Campus

박성주 한국경영정보학회 1995 한국경영정보학회 학술대회논문집 Vol.1995 No.1

[머리말] 차세대보안기술은 ICT 산업 · 기술의 발전을 위한 기술적 인프라

박성주 한국통신학회 2020 정보와 통신 Vol.37 No.8

자연과학 이론으로서의 진화론

박성주 한국외국어대학 학도호국단 1993 외대 Vol.32 No.1

Punching Fracture Experiments and Simulations of Unstiffened and Stiffened Panels for Ships and Offshore Structures

박성주,정준모 한국해양공학회 2020 韓國海洋工學會誌 Vol.34 No.3

Ductile fracture prediction is critical for the reasonable damage extent assessment of ships and offshore structures subjected to accidental loads, such as ship collisions and groundings. A fracture model combining the Hosford-Coulomb ductile fracture model with the domain of solid-to-shell equivalence model (HC-SDDE), was used in fracture simulations based on shell elements for the punching fracture experiments of unstiffened and stiffened panels. The flow stress and ductile fracture characteristics of JIS G3131 SPHC steel were identified through tension tests for flat bar, notched tension bar, central hole tension bar, plane strain tension bar, and pure shear bar specimens. Punching fracture tests for unstiffened and stiffened panels are conducted to validate the presented HC-DSSE model. The calibrated fracture model is implemented in a user-defined material subroutine. The force-indentation curves and final damage extents obtained from the simulations are compared with experimental results. The HC-DSSE fracture model provides reasonable estimations in terms of force-indentation paths and residual damage extents.

비만세포와 섬유모세포 공생배양계에서의 NO 의 분비 시작

박성주,김현룡,정현택,김형민 원광대학교 생명공학연구소 1995 생명공학연구소보 Vol.3 No.1

The physiological role of cultured mast cells (CMC) involved in nitric oxide (NO) is not understood. These studies therefore were undertaken to determine whether fibroblast cell lines have the ability to produce NO, and if so, NO released by firoblast cell lines influenced the proliferation of CMC. When CMC were cocultured with normal fibroblast cell lines without pokeweed-mitogen stimulated spleen cell conditioned medium (PWM-SCM), the mast cells undergo a phenotype change toward that of a connective tissue mast. Although CMC were cocultured with Sl/Sl^(d) fibroblast in the presence of PWM-SCM, Sl/Sl^(d) fibroblast did not maintain the viability of the CMC. Here we presence evidence that NO is released from fibroblast cell lines in the presence of PWM-SCM, that inhibition of NO induced Sl/Sl^(d) fibroblast leads to survive of CMC. We suggest that a product of mutant Sl is not indispensable for the synthesis NO in fibroblast cell lines and plays important role in promoting fibroblast-dependant growth of mast cells.

클라이언트/서버 환경하에서의 그룹일정관리시스템의 개발

박성주,조계현,이하빈,김한섭,김규중,신정관 한국경영과학회 1995 한국경영과학회 학술대회논문집 Vol.- No.2