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섬유 및 혼화제를 이용한 황토 모르타르의 수축균열 제어
문주현(Mun Ju-Hyun),양근혁(Yang Keun-Hyeok),전중규(Jeon Joong-Kyu),황혜주(Hwang Hye-Zoo) 대한건축학회 2012 大韓建築學會論文集 : 構造系 Vol.28 No.8
A total of 8 hwang-toh mortar mixes with no cement were tested to evaluate the effect of different fibers and admixtures on the control of shrinkage cracks of such mortars. The fiber types added were Lyocell, Poly-Amid and PVA, while, CSA and organic polymer were selected as the admixture. The shrinkage crack resistance of hwang-toh mortar were examined from the unrestrained drying shrinkage strain, restrained drying shrinkage and plastic shrinkage. Test results revealed that the unrestrained drying shrinkage strain of hwang-toh mortar sharply increased at an early age showing approximately 2.5 times higher values than predictions obtained from ACI 209, regardless of the addition of fibers and admixtures. In addition, cracks owing to the restrained drying shrinkage developed at the only age of 1.6 days in all test mixes; as a result, the cracking grade of hwang-toh mortar was evaluated to be high. On the other hand, the addition of fibers required a value of fiber spacing above 0.0003 in order to enhance the tensile resistance capacity of hwang-toh mortar under the restrained drying shrinkage and reduce the cracking area under the plastic shrinkage. Overall, it could be concluded that moist curing at an early age and the addition of fiber with fiber spacing above 0.0003 are practically effective in reducing shrinkage crack of hwang-toh mortar.
방문판매 화장품 뷰티카운셀러들의 교육경로와 실태에 관한 연구
황혜주,임진숙,Hwang, Hea-Ju,Lim, Jin-Sook 한국컴퓨터산업학회 2007 컴퓨터産業敎育學會論文誌 Vol.8 No.4
본 연구는 방문판매를 담당하는 뷰티카운셀러들을 대상으로 직업만족도와 전문성에 대한 사고를 파악하고, 뷰티카운셀러들의 제품에 대한 실무 교육 경로와 실태, 매출과의 상관관계를 파악하여 향후 경쟁력 있는 뷰티카운셀러를 만들어 가는데 도움이 되고자 하였다. 분석기법으로는 연구대상자의 일반적 특성을 파악하기 위하여 빈도와 백분율을 산출하였다. 또한 화장품 카운슬러들의 근무현황과 카운슬러의 교육경로 및 실태, 카운슬러 실무에 관한 교육내용, 그리고 카운슬러의 교육방법 및 필요성에 대한 카운슬러들의 인식을 알아보기 위해 $x^2$(Chi-square)검증과 빈도분석, t-test(검증), 그리고 One-way ANOVA(일원변량분석)을 실시하였다. 연구결과 화장품 판매를 위하여 전문적인 교육을 받은 뷰티카운셀러가 필요한 것 등을 얻을 수 있었다. The study aimed at examining ideas about specialty and general job satisfaction among beauty counsellors in charge of door-to-door sales and at considering current channels of practical education concerning products for beauty counsellors, its actual conditions, and correlation with the amount of sales in order to help cultivate a competitive beauty counsellor for the future. To find out general properties of subjects, both frequency and percentage were estimated. And in order to examine counsellors' understanding of channels and realities of their education and their working conditions, educational contents on practices, and educational methods and need, $x^2$(Chi-square) test, frequency analysis, t-test, and one-way ANOVA were carried out. The results can know as follows that beauty counselling in charge of cosmetics sales is a profession to need expertise and so no.
생활스포츠 참여 노년기 여성의 두 개천골요법과 한방 핀다요법이 정신건강에 미치는 영향
황혜주(Hwang, Hea-Ju),박규남(Park, Kyu-Nam) 한국체육과학회 2018 한국체육과학회지 Vol.27 No.1
It is known that craniosacral and Pinda therapy has positive effect to psychological state like stress, depression, and anxiety. In order to prove effectiveness of craniosacral and Pinda therapy, the women older than 60 years old were divided into three groups for treatment; group of craniosacral therapy, group of Pinda therapy, and group of craniosacral and Pinda therapy. Each group was treated for total 8 sessions twice a week. Before and after providing each therapy, 13 items of brainwave were measured and before and after conducting 8 times of treatment, certain amount of Cortisol and Epinephrine were taken from the venous blood to verify the stress alleviation of each treatment. Also, survey on stress, depression, and anxiety was conducted to assess the effect of each therapy in terms of stress alleviation. As a result, parenchymal therapy, Pinda treatment, craniosacral + Pinda treatment decreased the stress by lowering the beta wave, and increased the alpha wave. Especially Pinda treatment decreased the blood cortisol concentration and decreased the stress. Cortisol was found to be significantly lower in all items of Pinda treatment and craniosacral + Pinda treatment, according to results from the subjective questionnaire. Therefore, in terms of stress, depression, anxiety management, is believed to help the elderly woman metal life sports.