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벨라이트계 시멘트 및 광물질 혼화재를 활용한 고내구성ㆍ고강도 콘크리트의 특성
손영준(Son Young-Jun),박철(Park Cheol) 대한건축학회 2008 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.28 No.1(구조계)
As pointed out the shortcomings of existing high strength concrete characteristics like thermal characteristics, fluid characteristics, shrinkage characteristics, etc., belite rich cement is a good selection to improve the such characteristics. The purpose of this study was to analyze the importance properties of high strength concrete like adiabatic temperature, shrinkage, strength of belite rich cement concrete in high strength range. In addition, to improve the chloride ion penetration resistance, fluid characteristics and leading to further enhance mineral addition like fly ash, granulated blast furnace slag and silica hume were used. Also to facilitate the strength of initial age increasing the hydration of mineral addition, anhydrite gypsum is added.
하니콤 샌드위치 구조물의 수리 시 반복 경화에 따른 강도 특성 평가
손영준(Y-J Son),이기현(K-E Lee),김국진(K-J Kim),한중원(J-W Han),김윤해(Y-H Kim) 대한기계학회 2002 대한기계학회 춘추학술대회 Vol.2002 No.10
Aerospace industries are widely using honeycomb sandwich structures that it has high specific strength and stiffness, chemical material resistance and fatigue resistance. But, in repairing process of damaged areas, one of the problems is that delamination can be occurred in the sound areas during and/or after the exposure to the elevated curing temperature in case that the repair process is repeated. Therefore, this study was conducted Flatwise tensile, Drum peel and Long beam flexural strength tests to evaluate the degree of degradation of mechanical properties of the honeycomb sandwich structures by affecting thermal aging. As the results, the decrease of mechanical strength was observed at the specific specimen which is exposed over 50hrs at 127℃.
골프선수들의 컴퓨터 시뮬레이션을 이용한 재현성 훈련이 퍼팅 시 근 활성도에 미치는 영향
손영준(Son, Young-Jun),안창식(An, Chang-Sik),임준택(Lim, Jun-Tack) 한국체육과학회 2013 한국체육과학회지 Vol.22 No.3
The purpose of this study to investigate a effects of muscle activation on reproducibility training using computer simulation during putting in university. Subjects were participated twenty and divided ten people as each group. Results as follow. First, brachioradialis activation of program group who did reproducibility training using computer simulation was significantly decrease than control group. Second, Flexor carpi radialis activation of program group was significantly decrease than control group. Third, Flexor carpi ulnaris activation of program group who did reproducibility training using computer simulation was much decrease than control group, Fourth, Erector spinae activation of program group was significantly decrease than control group. Thus, there was positive effect on muscle relax from reproducibility training using computer simulation. Therefore, if it will apply long period to perform reproducibility training in cyber-space, that can be useful function for improving golf performance in golfer.
손영준(Young-Jun Son) 한국언론학회 2004 한국언론학보 Vol.48 No.2
This study examined the effects of media use on individual opinion. Specifically, it investigated the influence of diverse news frames of Korean media on college student's individual opinion about North Korea. A sample of 1,323 college students was asked about their media use patterns and opinions about a couple of North Korea-related Issues. After controlling for demographics and political attitudes, the regression analysis found that the use of progressive media such as the Hangyoreh and OhmyNews, an Internet-based news service, is a fairly significant predictor of the progressive opinion about North Korea, whereas that of the conservative dailies such as the Chosun Ilbo and the Donga Ilbo resulted in conservative idea. These effects were partly found when respondents' cognition and affect were controlled.