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모바일 기반 게임 어휘 학습 활동이 중학교 영어학습자의 어휘 학습 및 태도에 미치는 영향
손선영 ( Son Sun-young ) 한국멀티미디어언어교육학회 2018 멀티미디어 언어교육 Vol.21 No.2
The purpose of this study is to investigate the effects of using mobile-based vocabulary game activities on Korean middle school students' vocabulary learning and attitudes. The participants of the study were 43 middle school students learning English, who were divided into two groups: an experimental group with learning activities using a mobile-based vocabulary game program and a control group using traditional vocabulary learning activities. The major results of the study were as follows: First, with respect to vocabulary learning, the students in the experimental group showed a significantly higher score on a post-test compared to the control group students. Second, the experimental group’s scores were higher than the control group in both vocabulary pronunciation and spelling tests listening to the pronunciation. Third, in the survey the participants demonstrated positive attitudes toward vocabulary learning using the mobile-based vocabulary game program. Such results indicate that the use of a mobile-based game vocabulary program helps learners to learn not only the spelling of vocabulary and its single meaning but also the multilateral vocabulary learning such as listening and pronunciation. Therefore, teachers may use learner's mobile-based vocabulary game programs to inspire students’ interest in vocabulary learning, and encourage self-directed vocabulary learning.
일방향 탄소섬유강화 복합재료의 기계적 성질에 미치는 수 환경의 영향
손선영(Sun-Young Son),김재동(Jae-Dong Kim),고성위(Sung-Wi Koh) 한국해양공학회 1997 韓國海洋工學會誌 Vol.11 No.4
The purpose of this paper is to investigate the water environmental effect on the mechanical properties of carbon fiber/epoxy composites. Moisture concentration absorbed in CFRP under various water environment was calculated and degradation of mechanical properties for each wet composite laminates is investigated by performing the flexual and tensile test.<br/> The results show that moisture absorption is accelerated in higher temperature environment and under the same temperature sea water environment prompts more absorption than fresh water. As increasing the water temperature and moisture concentration tensile and flexual strength decreased as much as 25%~40% compared with dry condition.
UV 처리된 유리기판위에 RF-스퍼터된 PTFE 박막들의 발수 특성
손진운,윤현오,배강,손선영,김화민,Son, Jin-Woon,Youn, Hyon-O,Bae, Kang,Sohn, Sun-Young,Kim, Hwa-Min 한국전기전자재료학회 2010 전기전자재료학회논문지 Vol.23 No.1
Surface properties of polytetrafluoroethylene(PTFE) films fabricated by rf-magnetron sputtering system with UV surface treatment were investigated to increase water contact angle for their hydrophobic property. We found that the surface morphology and water contact angles of PTFE film modified as a function of the UV treatment times using UV-irradiation were influenced. The water contact angle of PTFE film with optimized UV treatment time for 15 minute showed a high hydrophobicity compared with the film without any surface treatment. We thought that it was due to the energy change of PTFE surface with an adhesion improvement to the glass surface as a smoothing a rough surface with needle-shape and/or the enhancement of an interface property as a removing some defects on the surface like a cleaning effect.
FTS 장치를 이용한 가스 차단막용 SiO<sub>x</sub> 및 SiO<sub>x</sub>N<sub>y</sub> 박막의 공정특성
손진운,박용진,손선영,김화민,Son, Jin-Woon,Park, Yong-Jin,Sohn, Sun-Young,Kim, Hwa-Min 한국전기전자재료학회 2009 전기전자재료학회논문지 Vol.22 No.12
In this study, the influences of silicon-based gas barrier films fabricated by using a facing target sputtering(FTS) system on the gas permeability for flexible displays have been investigated. Under these optimum conditions on the $SiO_x$ film with oxygen concentration($O_2/Ar+O_2$) of 3.3% and the $SiO_xN_y$ film with nitrogen concentration($N_2/Ar+O_2+N_2$) of 30% deposited by the FTS system, it was found that the films were grown about 4 times higher deposition rate than that of the conventional sputtering system and showed high transmittance about 85% in the visible light range. Particularly, the polyethylene naphthalate(PEN) substrates with the $SiO_x$ and/or $SiO_xN_y$ films showed the enhanced properties of decreased water vapor transmission rate (WVTR) over $10^{-1}\;g/m^2{\cdot}day$ compared with the PEN substrate without any gas barrier films, which was due to high packing density in the Si-based films with high plasma density by FTS process and/or the denser chemical structure of Si-N bond in the $SiO_xN_y$ film.