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RISS 인기검색어
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- 저자 : 고선미(Sun Mi Ko) (검색결과 2 건)
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나노구조기판의 형상 및 온도변화에 따른 액체 클러스터의 거동에 대한 분자동역학적 연구
고선미 ( Sun Mi Ko ),정흥철 ( Heung Cheol Jeong ),최경민 ( Gyung Min Choi ),김덕줄 ( Duck Jool Kim ),( Masahiko Shibahara ) 한국액체미립화학회 2008 한국액체미립화학회지 Vol.13 No.1
Molecular dynamic simulations have been carried out to study the effect of the nano-structure substrate and its temperature on cluster laminating. The interaction between substrate molecules and liquid molecules was modeled in the molecular scale and simulated by the molecular dynamics method in order to understand behaviors of the liquid cluster on nano-structure substrate. In the present model, the Lennard-Jones potential is applied to mono-atomic molecules of argon as liquid and platinum as nano-structure substrate to perform simulations of molecular dynamics. The effect of wettability on a substrate was investigated for the various beta of Lennard-Jones potential. The behavior of the liquid cluster and nano-structure substrate depends on interface wettability and function of molecules force, such as attraction and repulsion, in the collision progress. Furthermore, nano-structure substrate temperature and beta of Lennard-Jones potential have effect on the accumulation ratio. These results of simulation will be the foundation of coating application technology for micro fabrication manufacturing.
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청주지역 영유아의 이유 실태 및 영유아 어머니의 이유식 광고에 대한 신뢰도
김기남(Ki Nam Kim),고선미(Sun Mi Ko),권현정(Hyun Jung Kwon) 충북대학교 생활과학연구소 2005 생활과학연구논총 Vol.9 No.2
A survey was carried out to investigate the weaning practices of infants and their mothers" reliability on advertisements of weaning foods. Subjects included 120 mothers who visited public health centers in Cheongju city between Jan. 24th and Feb. 14th in 2003 and had babies aged under 24 months, and were interviewed using a questionnaire. The results were as follows: In the start time of weaning, half of subjects(50.0%) answered that they began when their babies were three or four months old, and in the cessation time, 34,5% of respondents stopped weaning when their ages were 12 or 13 months. In the kinds of weaning foods, 42.6% of subjects answered that they fed commercial formula, and 40.9%, home made foods, and 16.5%, both of them. In the reason of feeding commercial formula, 48,3% replied because of "convenient", and 25.0%, "more nutritious than home-made. Majority of subjects who used commercial weaning foods answered that they satisfied with that foods, and the main reason why they selected the specific brand was "high credit of manufacturer". Mean score of reliability on advertisements showed 2.05-3.02(full score 4.00) in five categories of advertisement messages. 68.1% of the subjects answered that they met some over-exaggerated advertisements. In the characteristics of the group according to the degree of reliability on advertisement, those, who had high reliability, used commercial weaning foods more frequently, and accepted advertisements more positively compared to those who had low reliability. Therefore, the education for women who consume weaning foods should be needed, and monitoring and supervision over baby food advertisements are required to protect consumers from the adverse effect of exaggerated advertising.
ScienceON
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