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- 저자 : 송선화(Song Sun-hwa) (검색결과 25 건)
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동결융해에 의해 열화된 CFRP 보강 철근콘크리트 보의 전단거동
송선화 ( Song Seon-hwa ),김선우 ( Kim Sun-woo ),서수연 ( Seo Soo-yeon ),최기봉 ( Choi Ki-bong ),윤현도 ( Yun Hyun-do ) 한국구조물진단유지관리공학회 2008 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.12 No.1
In these days, carbon fiber-reinforced polymer (CFRP) has been widely used for retrofitting and/or strengthening structural elements in structure. However, there are not enough test data to predict the long-term performance of the retrofitted structures exposed to weathering. The purpose of this study is to evaluate the effect of freeze-thawing on the shear behavior of reinforced concrete(RC) beams strengthened in shear with carbon fiber sheet and plate. Six small-scale RC beams (100 mm × 100 mm × 400 mm) were strengthened with CFRP in shear, subjected to up to 240 cycles freeze-thawing from -18~4℃, and tested to failure in four-point bending. The test data also indicated that no significant damage to carbon fiber sheet and plate strengthened concrete beams had occurred because of 240 cycles freeze-thawing.
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송선화 ( Sun Hwa Song ),안효자 ( Hyo Ja An ) 한국정신간호학회 2011 정신간호학회지 Vol.20 No.2
Purpose: The purpose of this study was to identify experiences of immigrant women from Philippines in childrearing. Methods: The study design was a qualitative research. Participants were 15 Filipino immigrant women living in rural Korea. Average age was 37 and average duration of marriage was 11 years. Data were collected through in-depth interviews and participants were interviewed once or twice between December 2009 and February 2010. Data were analyzed with Colaizzi`s (1978) phenomenological methodology. Results: The Four themes-clusters were identified from fourteen themes. The theme-clusters (themes) were 1) Responsibility of a mother as a foreigner (being a role-model, patience, strict upbringing); 2) Practical problems of child-rearing (parenting alone, language difficulties, financial difficulties, lack of husbands` support, cultural obstacles; 3) Worries about their children (children`s emotional problems, speech disorders, maladjustment at school); 4) Hopes for the future (self-satisfaction, expectations for their children, social support). Conclusion: The results help in understanding the situation of immigrant women from the Philippines when they nurture their children and suggest the necessity of programs focusing on improving mother-child relationships, especially as related to mothers` limited language skills. Further comprehensive education programs to improve better father-child relationships in relating to each other should be developed.
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송선화(Song Sun Hwa) 한국유아교육·보육복지학회 2012 유아교육·보육복지연구 Vol.16 No.1
본 연구는 보육교사의 직무스트레스와 인간관계가 직무만족에 미치는 영향력을 살펴보고, 보육교사의 직무스트레스와 직무만족의 관계에서 인간관계의 매개효과를 검증하는데 목적을 두었다. 이를 위해 G광역시에 소재하는 보육시설에 근무하는 보육교사 204명의 설문지를 분석하였다. 연구결과, 보육교사의 직무스트레스는 인간관계 및 직무만족과 부(-)적 상관을 보이는 것으로 나타났다. 또한 보육교사의 직무만족에 대해 직무스트레스 하위요인 중 보육활동과 보수가 유의미한 영향을 미치는 것으로 나타났으며, 보육교사의 직무만족에 대해 인간관계 하위요인 중 원장과의 관계, 동료와의 관계, 학부모와의 관계가 유의미한 영향을 미치는 것으로 나타났다. 이는 보육교사가 경험하는 인간관계의 만족도를 증진시키는 것이 보육교사의 직무스트레스를 완화하고, 직무만족을 높이는 효과가 있음을 시사하는 것이다. The objectives of this study were to examine the effects of childcare teachers’ job stress and human relations on their job satisfaction and to determine the mediating effect of human relations on the relation between childcare teachers’ job stress and job satisfaction. For these purposes, we analyzed questionnaires collected from 204 childcare teachers working at childcare facilities in G Metropolitan City. According to the results of this study, childcare teachers’ job stress was in a negative correlation with their human relation and job satisfaction. In addition, among the subfactors of childcare teachers’ job satisfaction, childcare activity and wage had a significant effect on childcare teachers’ job satisfaction, and among the sub-factors of childcare teachers’ human relation, relation with the director, relation with colleagues, and relation with parents had a significant effect on childcare teachers’ job satisfaction. This suggests that enhancing childcare teachers’ satisfaction with their human relations is effective in reducing childcare teachers’ job stress and increasing their job satisfaction.
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변형경화형 시멘트 복합체(SHCC)로 보-기둥 접합부가 보강된 휨항복형 철근콘크리트 보의 구조성능
송선화(Song Seon-Hwa),장광수(Jang Gwang-Soo),김윤수(Kim Yun-Su),김선우(Kim Sun-Woo),김용철(Kim Yong-Cheol),윤현도(Yun Hyun-Do) 대한건축학회 2008 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.28 No.1(구조계)
Reinforced concrete rahmen structures has been required ductility as well as strength of beam-column joint in seismically hazard area. Some investigations have been carried out retrofitting and/or strengthening structural elements in structure. Strain-hardening cementitious composite(SHCC) has been expected excellent reinforcement performance in beam-column joint area. The properties of reinforcing fiber, as tensile strength, aspect ratio and elastic modulus, have great effect on the fracture behavior of SHCC. Fiber can control fracture of cementitious composite by bridging action. The purpose of this experimental study is to evaluate structural performance of exterior reinforced concrete beam-column joint strengthened with SHCC under cyclic loading. The cyclic loading test results identified a unique unloading and reloading response for this ductile composite.
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