http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
- 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
- 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
RISS 인기검색어
- 검색키워드
- 저자 : 조재철(Jae-Cheol Cho) (검색결과 22 건)
- 무료
- 기관 내 무료
- 유료
-
-
-
BIPV를 위한 단축 구동 태양광 전력 발생장치 제작에 관한 연구
조재철(Jae-Cheol Cho),이진(Jin Lee) 대한전기학회 2012 전기학회논문지 Vol.61 No.2
Recently, the energy has been used much more than ever, but there has been many problems including atmospheric pollution. So we need alternative energy resources, which are solar heat, solar light, wind power, small water power, etc. The field, which is most popular these days, is the energy source by solar light which transform electric energy using the solar cell and it is available with many researches. In this paper, we manufactured the solar power generation system over 90W using solar module which was 9.90V for Voc, 0.93 A for Isc, 8.64 V for Vmp, 0.75 A for Imp, 6.5 W for power. System was controlled by step motor with worm gear to operate optimum condition between 0° ∼70° angle. This system was very effective in tracking space use because it need less space than general solar module.
-
스퍼터링법에 의한 ZnO 투명전도막의 제작과 전기적 특성
정운조,조재철,정용근,유용택 ( Woon Jo Jeong,Jae Cheol Cho,Yong Kun Jeong,Yong Tek Yoo ) 한국센서학회 1997 센서학회지 Vol.6 No.1
ZnO thin film had been deposited the glass by sputtering method, and investigated by optical and electrical properties. When the rf power was 180W and sputtering pressure was 1 x 10^(-3) Torr at room temperature, thin film deposited had strongly oriented c-axis and the lowest resistivity(1 x 10^(-4)Ω·cm), and then carrier concentration and Hall mobility were 6.27x10^(20) cm^(-3) and 22.04㎠/V·s, respectively. Transmittance of ZnO thin film in visible range was above 90%, and this thin film cut off the ultraviolet range below 330nm and the infrared and range above 850nm. And after annealing in hydrogen ate, the resistivity of ZnO thin film was somewhat decreased, while obtained as stable state.
-
-
-
박계춘,조재철,류용택 ( Gye Choon Park,Jae Cheol Cho,yong Tek Yoo ) 한국센서학회 1993 센서학회지 Vol.2 No.1
CdS and Se thin films were deposited on slide glass by EBE method respectively and surface morphology, crystal structure, electrical and optical properties were investigated by substrate temperature and annealing. The deposited CdS film was well fabricated with cubic structure at substrate temperature of 150℃, Se film was deposited with noncrystal structure until substrate temperature of 100℃, but Se film was grown with monoclinic structure at substrate temperature of 150℃. And so. after annealing at 150℃ for 15min, noncrystalline Se was proved to be hexagonal structure. Finally, the maximum output of Se/CdS heterojunction at 5000 lux was 4 mW/㎠ and maximum spectral sensitivity was represented at 585nm.
-
-
-
ScienceON연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
