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Al 박막의 힐록 형성에 미치는 Mo 하부층의 영향에 관한 실시간 분석
이용덕,황수정,이제훈,주영창,박영배,Lee, Yong-Duck,Hwang, Soo-Jung,Lee, Je-Hun,Joo, Young-Chang,Park, Young-Bae 한국재료학회 2007 한국재료학회지 Vol.17 No.1
The in-situ scanning electron microscopy observation of real-time hillock evolution in pure hi thin films on glass substrate during Isothermal annealing was analyzed quantitatively to understand the compressive stress relaxation mechanism by focusing on the effect of Mo interlayer between Al film and glass substrate. There is a good correlation between the hillock-induced stress relaxation by in-situ scanning electron microscopy observation ana the measured stress relaxation by wafer curvature method. It is also clearly shown that the existence of Mo interlayer plays an important role in hillock formation probably due to the large difference in interfacial diffusivity of Al films.
이용덕(Yong-duck Lee),홍영호(Young-ho Hong),김현태(Hyun-tae Kim),김구영(Ku-young Kim) 대한기계학회 2003 대한기계학회 춘추학술대회 Vol.2003 No.4
The present study proposes a new structure for a flat plate heat pipe which could embody a thin thickness,<br/> any shapes and high heat density a unit area. It is on the structure for the formation of vapor passages and the<br/> support of the case of the flat plate heat pipe. A screen mesh is used as the one. To verify the validity of the<br/> one, the flat plate heat pipe of 1.08mm thickness was made with a layer of the screen mesh with 14 and 100<br/> mesh number respectively and tested. Here the screen mesh with 14 mesh number plays a role of the vapor<br/> passage and the support of the case and the screen mesh with 100 mesh number functions as the wick<br/> structure. The results show that the screen mesh excellently carries out the function of the vapor passage and<br/> the support of the case.
승용 씨암말의 생식기 유래 세균의 분포 및 항생제 감수성 양상
조영재 ( Young Jae Cho ),이용덕 ( Yong Duck Lee ),장종덕 ( Jong Duck Jang ),신광휴 ( Kwang Hyeu Shin ),박용수 ( Yong Soo Park ),양재혁 ( Jae Hyuk Yang ),김승준 ( Sung Joon Kim ),조길재 ( Gil Jae Cho ) 한국동물위생학회 2015 韓國家畜衛生學會誌 Vol.38 No.1
This study was carried out to investigate the genital tract bacterial flora of riding mare in Jangsu stud farm during March to September, 2014. The specimens were collected from vaginal and uterus using a swab from 104 riding mares. Colonies were selected on blood and MacConkey agar plates, and identified as standard biochemical properties and Maldi-Tof MS. From this study, we isolated 148 strains including Escherichia (E.) coli (14.19%), Streptococcus (S.) equi subsp. zooepidemicus (2.7%), Streptococcus (S.) dysgalactiae subsp. equisimilis (2.03%), Klebsiella (K.) pneumonia (1.35%) and other strains from riding mares. In antimicrobial agents susceptibility test, it showed a high sensibility to the antibiotics of the most. E. coli and S. zooepidemicus were visible to have a high sensibility to almost antibiotics used in this study. However, K. pnemoniae showed a high antibiotic resistance patterns. These results may provide the basic information to establish strategies for the treatment and prevention of reproductive diseases in riding mares in Korea.
가포화 자기스위치를 이용한 탈황탈질 시스템의 전원장치에 관한 연구
김수홍(Soo-Hong Kim),이용덕(Young-Duck Lee),김승모(Seung-Mo Kim),김병섭(Byung-Sub Kim),권병기(Byung-Ki Kwon),최창호(Chang-Ho Choi) 전력전자학회 2008 전력전자학술대회 논문집 Vol.- No.-
Generally, Capacitor charging power supply (CCPS) consist of the full-bridge inverter, LC resonant tank and capacitance load. The multi-connection systems are normally used for high voltage or high power application. In this paper, conventional parallel operation resonant type and proposed series operation PWM type CCPS for pulse corona occurrence of DeSOx, DeNOx system using magnetic pulse compressor make a comparison. The effect of proposed CCPS is verified by circuit characteristics analysis of parallel operation resonant type and series operation PWM type, and it is confirmed by simulation result.