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접촉형 변위센서를 이용한 LCD노광기용 스테이지 시스템
임광국,서화일,조현찬,김광선,강흥석,Yim, Kwang-Kuk,Seo, Hwa-Il,Cho, Hyun-Chan,Kim, Kwang-Sun,Kang, Heung-Seok 한국반도체디스플레이기술학회 2007 반도체디스플레이기술학회지 Vol.6 No.1
In an effort to reduce weaknesses of existing laser displacement sensor-based system, a sensing device for distance and balance of mask-substrate gap using touch-type displacement sensor was suggested. The device suggested in this study is expected to solve the problems of prices and reflections, by means of a touch-type sensor. LCD exposure equipment stage system including suggested sensing device was realized to assess the characteristics of sensing the balance and gap between mask and substrate. It was verified that a touch-type displacement sensor-based device to adjust the balance and distance of mask-substrate gap suggested in this study can be applicable to LCD expose equipment in practice.
스핀코팅 방법으로 제작된 ZnO 박막의 두께에 따른 구조적 및 광학적 특성
임광국,김민수,김군식,최현영,전수민,조민영,김형근,이동율,김진수,김종수,이주인,임재영,Yim, Kwang-Gug,Kim, Min-Su,Kim, Ghun-Sik,Choi, Hyun-Young,Jeon, Su-Min,Cho, Min-Young,Kim, Hyeoung-Geun,Lee, Dong-Yul,Kim, Jin-Soo,Kim, Jong-Su,Lee, Joo 한국진공학회 2010 Applied Science and Convergence Technology Vol.19 No.4
스핀코팅 방법으로 제작된 ZnO 박막의 두께에 따른 구조적 및 광학적 특성에 관한 연구를 수행하였다. ZnO 박막의 두께가 두꺼워짐에 따라 줄무늬 모양의 폭과 밀도가 증가하고, 두께가 450 nm 일 때 줄무늬 모양은 사라지며 표면이 매끄러워졌다. ZnO 박막의 표면이 매끄러워졌을 때 orientation factor ${\alpha}_{(002)}$가 급격히 증가하였고, (002) 회절 피크의 FWHM (full width at half maximum)는 감소하였다. ZnO 박막의 NBE (near-band edge emission) 피크의 위치는 두께와 표면 형태의 영향을 거의 받지 않았으나, 매끄러운 표면을 갖는 ZnO 박막의 DLE (deep level emission) 피크의 위치는 청색편이 하였다. ZnO 박막의 두께가 증가함에 따라 DLE 피크에 대한 NBE 피크의 발광세기 비율이 증가하는 경향을 보였고, NBE 피크의 FWHM은 감소하는 경향을 보였다. Thickness effects on the structural and optical properties of ZnO thin films fabricated by spin coating method have been carried out. With increase in the thickness of the ZnO thin films, the width and density of striation shape are increased. The ZnO thin film with thickness of 450 nm has a smooth surface morphology. For the ZnO thin film with a smooth surface, orientation factor ${\alpha}_{(002)}$ is sharply increased and FWHM of (002) diffraction peak is decreased compared to the ZnO thin films with a striation shape surface. Thickness and surface morphology of the ZnO thin films hardly affect the NBE peak position. However, the DLE peak position is blue-shifted as the surface morphology is changed from striation to smooth surface. The PL intensity ratio of the NBE to DLE is increased and the FWHM of NBE peak is decreased as the thickness of the ZnO thin films is increased.
임광국,조민영,전수민,김민수,임재영 한국물리학회 2011 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.58 No.3
ZnO thin films were grown on Si substrates with growth interrupted buffer layers by using plasmaassisted molecular beam epitaxy. Their structural and optical properties were investigated by using field-emission scanning electron microscopy, atomic force microscopy, X-ray diffraction, and photoluminescence (PL) spectroscopy. The surface morphology of the films changed from an island to a maze-like pattern as the number of growth interruptions increased. The average grain size of the films gradually increased with the number of growth interruptions. At more than 10 growth interruptions, the intensity of the ZnO (002) diffraction peak increased with increasing number of growth interruptions, and the full width at half maximum decreased from 0.21˚ to 0.17˚. The PL intensity of the near-band-edge emission was enhanced and the deep level emission shifted from orange to green as the number of growth interruptions increased.
임광국,김민수,김소아람,임재영,남기웅,Su Min Jeon,이동율,김진수,김종수,이주인 한국물리학회 2012 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.60 No.10
ZnO nanorods were grown on Si substrates by using the hydrothermal method; then, they were post-annealed at various temperatures ranging from 573 to 973 K. The effects of post-annealing temperature on the structural and the optical properties were investigated by using scanning electron microscopy (SEM), X-ray diffraction, and photoluminescence (PL). After the post-annealing process, small pores had been formed on the surface of the ZnO nanorods without any change in the shape of the ZnO nanorods. A tensile stress was observed in the as-grown and the post-annealed ZnO nanorods. The PL intensity ratio of the near-band-edge emission (NBE) to the deep-level emission (DLE) was enhanced, and the DLE peak shifted from yellow to orange emission with increasing post-annealing temperature. The activation energy of the post-annealed ZnO nanorods was increased by the post-annealing process.
임광국 한국교육철학학회 2022 교육철학연구 Vol.44 No.4
This study interprets today’s family crisis and the problem of avoiding becoming a parent from an ecological perspective. Specifically, from the point of view of social ecology, this study answers the questions: What is the cause of harming the ecological organicity of our society? What can we do to overcome this? The family crisis and low fertility problems that discourage people from becoming parents are the same as the crisis of organicity and sustainability in our society. From a social ecological point of view, the cause of a social crisis is the structure in which humans dominate others. The traditional family system is based on men's domination of women, and furthermore, on the structure of society's exploitation of women. This structure of domination and exploitation has been justified through beliefs such as female virtue and maternal love. The modern family, which emerged as a result of dismantling the traditional family, was also designed to oppress and exploit women to reproduce the labor force required by industrial capital. This still works even today, when women's liberation and gender equality are institutionally established and is allegedly the cause of the current “family crisis.” Today's families, built on the basis of individual emotions away from traditional obligations, have transformed the relationship between parents and children into a “radical psychologicalization.” Radical psychologicalization is another cause of family crisis that makes it difficult to become a parent and raise children. To overcome this and restore the ecological organicity of the family, the structure that exploits women for pregnancy, childbirth, and child rearing must be eliminated. We also need to stop thinking that raising children is a burden only for parents. In addition, huge social support is needed to ensure the long-term stability of child rearing. 본 연구에서는 현 시대의 가족 위기 현상, 그리고 ‘부모 됨’의 기피라는 사회적 난제를 생태주의적 관점으로 해석하였으며, 주요한 논점은 사회생태론의 관점에서 오늘날 우리 사회의 ‘생태적 유기성’을 해치고 있는 원인은 무엇인지, 그리고 이를 극복하기 위해 우리는 어떠한 방향성을 견지해야 하는지에 대한 것이다. 부모 됨의 어려움과 그에 따른 기피현상, 그리고 이에 말미암은 가족의 위기와 저출산 현상은 우리사회의 유기성, 그리고 지속가능성의 위기와 동일한 의미이다. 사회생태론의 관점에서 이러한 위기를 조장하는 것은 인간의 인간에 대한 지배구조로 제시되는데, 전통적 의미의 가족제도는 남성의 여성에 대한 지배, 더 나아가 사회의 여성에 대한 착취구조에 기인한다. 그리고 이러한 구조는 여성의 덕목, 모성애와 같은 신념체계를 통해 정당화 되어왔다. 그리고 전통적 가족을 해체하며 등장한 근대의 가족제도 역시 산업자본의 요구에 맞는 노동력의 재생산을 위한 장치로서 여성을 억압하고 착취하는 형태로 설계되었다. 이러한 흐름은 여성해방과 양성평등이 제도적으로 확립된 오늘날에도 여전히 통용되며 여성들을 암묵적으로 억압하는 기제로 작동하고, 이는 현대사회가 겪고 있는 ‘가족의 위기’를 초래한 근본적인 원인이다. 또한 전통적인 의무와 당위성에서 벗어나 개인의 감정과 욕구를 기반으로 형성되는 현대의 가족은 부모와 자녀와의 관계 역시 변화시켜, 교육열과 과잉보호로 대표되는 급진적인 심리화 경향으로 이끌게 된다. 이러한 급진적 심리화 경향은 부모 됨과 자녀 양육에 대하여 선택과 집중, 혹은 단념을 초래함으로 가족의 위기에 대한 또 다른 원인으로 작용하고 있다. 이를 극복하고 가족의 생태적 유기성을 회복하는 생태주의적 해석의 시사점은 오늘날 아직도 남아있는 임신, 출산, 자녀양육과 관련한 암묵적 여성 착취구조를 제거하고, 자녀의 양육을 온전히 부모의 부담으로 간주하는 인식에서 벗어나야 한다. 또한 부모와 자녀 관계의 급진적 심리화 경향을 감안하여 자녀양육의 장기 지속적 안정성을 보장하는 사회적 차원의 전폭적인 지원이 필요하다.