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황성진,홍석우,윤종서,박희민,김현철,Hwang, Sung-jin,Hong, Seok-woo,Yoon, Jong-seo,Park, Heemin,Kim, Hyun-chul 한국반도체디스플레이기술학회 2021 반도체디스플레이기술학회지 Vol.20 No.1
The automotive industry is developing day by day. Among them, it is very important to prevent accidents while driving. However, despite the importance of developing automobile industry technology, accidents due to road defects increase every year, especially in the rainy season. To this end, we proposed a road defect detection system for road management by converging deep learning and raspberry pi, which show various possibilities. In this paper, we developed a system that visually displays through a map after analyzing the images captured by the Raspberry Pi and the route GPS. The deep learning model trained for this system achieved 96% accuracy. Through this system, it is expected to manage road defects efficiently at a low cost.
유아교사의 행복감과 직무만족도가 심리적 소진에 미치는 영향
황성진,김상림 국제문화기술진흥원 2020 The Journal of the Convergence on Culture Technolo Vol.6 No.2
본 연구의 목적은 유아교사의 행복감과 직무스트레스가 교사-유아상호작용에 미치는 영향을 알아보는 것이다. 연구대상은 수도권 소재 유치원과 어린이집에 근무하는 유아교사 238명이다. 연구대상의 행복감과 직무만족도 및 심리적 소진은 설문지를 사용하여 측정되었다. 수집된 자료는 SPSS 26.0을 활용하여 분석했으며, 기술통계분석과 Pearson 상관관계분석 및 중다회귀분석을 실시했다. 연구결과로는 첫째, 유아교사의 행복감과 직무만족도 수준이 높을수록 심리적 소진의 수준이 낮은 것으로 나타났다. 둘째, 유아교사의 높은 행복감과 직무만족도가 심리적 소진을 경감시키는 영향을 미치는 것으로 밝혀졌다. 본 연구결과는 유아교사의 행복감과 직무만족도를 증진시키는 다양한 지원을 통해 심리적 소진으로 인한 부정적 영향을 감소키시거나 예방할 수 있음을 시사한다. We aimed to investigate the effects of early childhood teachers’ happiness and job satisfaction on their psychological burnout. The subjects were 238 early childhood teachers in Metropolitan area, South Korea. We measured subjects’ happiness, job satisfaction, and psychological burnout using the questionnaire surveys. The collected data were analyzed with descriptive statistics, Pearson correlation analyses, and the analyses of multiple regression using SPSS 26.0. As results, early childhood teachers’ happiness and job satisfaction showed the statistically significant negative correlation with psychological burnout. It was found that early childhood teachers’ happiness and job satisfaction statistically significantly affected psychological burnout. The results implied that the negative effects of early childhood teachers’ psychological burnouts would be reduced or prevented through practical effort to enhance their happiness and job satisfaction.
Sexual reproduction of the soft coral Dendronephthya castanea (Alcyonacea: Nephtheidae)
황성진,송준임 한국통합생물학회 2012 Animal cells and systems Vol.16 No.2
Dendronephthya castanea Utinomi, 1952 is a member of the family Nephtheidae, and dominates shallow waters adjacent to the southern part of Jejudo Island, Korea. This species is a gonochoric internal brooder with a sex ratio of 1:1, and releases planulae around the time of the full and new moon from July to September, when the seawater temperature peaks. The gametogenic cycle is annual, and oogenesis (12 months) is longer than spermatogenesis (45months). No difference in reproductive features including sexuality, sex ratio, gametogenesis and gametogenic cycles was found between the sympatric species D. castanea and D. gigantea, and there was no temporal reproductive isolation. Investigation of the morphological taxonomy and molecular biology of these species indicates that they have very similar or identical traits, suggesting an absence of speciation and a need for taxonomic reclassification.
청피홍심무우(Raphanus sativus L.)의 모상근으로부터 anthocyanin 생산
황성진,표병식 東新大學校 1998 論文集 Vol.10 No.-
An in vitro culture of hairy roots of Raphanus sativus was set up in order to investigate the possibility of producing anthocyanin, a natural pigment present in the root of this plant. Pieces of leaves of axenically grown plants of R. sativus were infected with Agrobacterium rhizogenes A4, ATCC15834. The transgenic nature of hairy roots was confirmed by opine assay and by PCR amplification. Best growth of transformed roots was obtained on 1/2MS containing 3% sucrose and 1% chitosan (pH 5.7). The addition of elicitors had little effect on the growth of hairy roots and the anthocyanin accumulation in comparison with the control. The maximum production of anthocyanin was achieved in B5 medium with 100㎛ spermine at 5,000 Lux fluorescent light condition. For mass production of anthocyanin, hairy roots was cultured in air-lift type bioreactor.