We have investigated the atomic structure of clean surfaces of Si(111) and Si(111)-Ag surfaces using both FIM and RHEED-TRAXS system. In FIM image of Si at 78K, the surface oxides layers were slowly desorbed as increasing the applied voltage, and then the ring structure of Si(111)surface appeared. From this stage silicon atoms evaporated violently. Ag atoms were deposited on clean Si tip surface by thermal evaporation controlled accurately by a fast thickness monitor which was developed by authors. The desorption of Ag atoms were carried out by direct heating the Si tip. From our FIM and RHEED-TRAXS experimental results we could support the displacement model for the interpretation of Si(111) 7x7 superstructure and Lander-Morrison model for the atomic arrangement of Si(111) √3x√3-Ag structure for Θ=1.0 ML
In this study, a Korean Assessment of Children’s Emotional Skills (ACES) was developed by modifying the original ACES which was initially introduced in the United States. Specifically, the original ACES was translated into Korean and revised to better fit the Korean cultural context. The content validity of the revised Korean ACES was established via expert reviews. To test its reliability, the revised Korean ACES was conducted on 286 six-year-old children. A confirmatory factor analysis indicated that our newly developed Korean ACES can be used as an appropriate tool to measure Korean children’s emotional skills. The Korean ACES can stimulate further studies on these emotional skills and contribute to various international collaborative studies that seek to compare the emotional skills of children from diverse cultural backgrounds.
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