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In-line 마그네트론 스퍼터 장치를 사용하여 산소 분위기에서 제작한 Ag 박막의 특성
구대영,김원목,조상무,황만수,이인규,정병기,이택성,이경석,조성훈,Ku, Dae-Young,Kim, Won-Mok,Cho, Sang-Moo,Hwang, Man-Soo,Lee, In-Kyu,Cheong, Byung-Ki,Lee, Taek-Sung,Lee, Kyeong-Seok,Cho, Sung-Hun 한국재료학회 2002 한국재료학회지 Vol.12 No.8
A study was made to examine the electrical, compositional, structural and morphological properties of Ag thin films deposited by DC magnetron sputtering in $O_2$ atmosphere with deposition temperature from room temperature to 15$0^{\circ}C$ using in-line sputter system. The Ag films deposited at temperature above $100^{\circ}C$ in oxygen atmosphere gave a similar specific resistivity to and even lower oxygen content than those deposited using pure Ar sputter gas The Ag films deposited with pure Ar gas was mainly composed of crystallites with [111] preferred orientation, while, for those deposited in oxygen atmosphere, more than 50% of the volume was composed of crystallites with [100] orientation. The difference in the micro structure did not cause any difference in the specific resistivity of Ag films. The results showed that the transparent conducting oxide films and the Ag films could be processed sequentially in the same deposition chamber with careful control of deposition temperature, which might result in a cost reduction for constructing the large scale in-line deposition system.
연구보문 : 자연과학 ; 동계 사료용 맥류와 하계 사료용 옥수수 작부체계 연구
조상균 ( Sang Kyun Cho ),조광민 ( Kwang Min Cho ),박태일 ( Tae Il Park ),박형호 ( Hyeong Ho Park ),노재환 ( Jae Hwan Roh ),최인배 ( In Bea Choi ),오영진 ( Young Jin Oh ),송태화 ( Tae Hwa Song ),김기종 ( Kee Jong Kim ),박기훈 ( Ki 한국국제농업개발학회 2012 韓國國際農業開發學會誌 Vol.24 No.3
This experiment was carried out for two years from 2010 to 2011 in Kimjae city to provide basis of ``Winter forage crop-Summer forage corn`` cultivation system in southern area of Korea. The cultivars tested were ``Gokwoo`` as rye, ``Kumgang`` as wheat and ``Youngyang`` as barley as winter forage crops and ``Kwangpyeongok`` as corn for the summer forage crop. Regarding to winter forage crops, biomass of rye in fresh weight was 301.4 ton/ha and its income indicated 1,841 thousands Korean Won (KRW)/ha, an increase of 141% compared to naked barley grain production(NBGP). Biomass of barley was 30.6 ton/ha and the income showed 3,151 thousand KRW/ha, an increase of 242% compared to NBGP. Biomass of wheat recorded as 40.5 ton/ha with the most productive result among three winter forage crops and the income was 3,740 thousand KRW/ha, meaning 287% increase in comparison with NBGP. Regarding to summer forage corn cultivation, biomass production after rye was 56.7ton/ha in fresh weight and its income gained 4,731 thousand KRW/ha with an increase of 88% compared to single cropping rice(SCR). Biomass after barley produced 51.4ton/ha and the income was 3,828 thousand KRW/ha, showing a increase of 71% compared SCR. Biomass after wheat recorded as 31.0 ton/ha with the lowest productivity among three summer forage cultivations after each winter forage crops and the income of 372 thousand KRW/ha, an increase of 7% in comparison with SCR. With regard to total roughage production of each winter-summer forage crop combinations, total biomass production of ryecorn system was 87.1 ton/ha and the income recorded 6,572 thousand KRW/ha, similar to that of NBGP plus SCR. Biomass of barley-corn system produced 87.4ton/ha and the income was 6,979 thousand KRW/ha, a 105%-rise over that of NBGP plus SCR. Biomass of wheat-corn system recorded 71.6 ton/ha with the lowest result among three winter-summer forage corp combinations and the income of 4,112 thousand KRW/ha with an growth of 62% in comparsion with that of NBGP plus SCR.
조상인(Cho Sang In),강민수(Kang Min Soo),김형중(Kim Hyung jung) 한국통신학회 2021 한국통신학회 학술대회논문집 Vol.2021 No.11
본 논문은 레이다 주파수의 이용 효율화를 극대화할 수 있는 레이다 송신 신호를 개발하기 위한 선행 단계로서 기본적인 레이다 신호의 송수신 및 표적 검출 시스템과 표적 신호 생성 시뮬레이터 시스템 구현에 관하여 기술하였다. 레이다 및 표적 시뮬레이터 시스템은 네셔날인스트루먼트사의 PXIe 모듈로 구성하였으며 labview를 이용하여 프로그래밍 하였다.