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- 저자 : 黃春玉 (검색결과 5 건)
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금주행위 변화단계별 변화과정, 의사결정 균형 및 자기효능감의 관계
황춘옥,최봉실 알코올과 건강행동학회 2020 알코올과 건강행동연구 Vol.21 No.1
Objective: This study aimed to identify the relationships between processes of change, decisional balance and self-efficacy by stages of change in abstinence behavior among users of community addiction management centers in Korea. Based on the findings, it also aimed to provide basic data to develop effective recovery support programs for community addiction management centers and establish addiction prevention policies. Methods: The subjects of this study are 141 users aged 20 or older who are registered under the Community Addiction Management Center of S-gu in G City. Data were collected using self-report surveys on stages of change, processes of change, decisional balance and self-efficacy for alcohol abstinence. The collected data were analyzed using SPSS/WIN 23.0. Results: In terms of the distribution of stages of change in abstinence, 57.5% fell under the maintenance stage, and the processes of change by stages of change showed that those in the maintenance stage had higher scores than those in the precontemplation stage. The scores of cognitive processes were higher at the beginning stages, and the scores of behavioral processes were higher at later stages. The decisional balance of alcohol abstinence showed high levels of awareness of the damages from drinking, and there were significant differences in abstinence self-efficacy by stages of change. Positive correlations were found between stages of change and self-efficacy. For processes of change of alcohol abstinence, the cognitive processes showed positive correlations with the behavioral processes and the decisional balance loss factor, and the behavioral processes had positive correlations with the decisional balance loss factor. In terms of the decisional balance, the benefit factor had negative correlations with self-efficacy. Conclusion: It is necessary to establish strategies on processes of change by considering stages of change in abstinence by users, and develop local community-based alcoholic intervention programs that emphasize the harmfulness of drinking and reinforce self-efficacy. Furthermore, there should be political support to develop such programs and strategies.
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철유 발색에 미치는 Fe^(2+)와 Fe^(3+)의 영향 연구
黃春玉,李秉夏 명지대학교 산업기술연구소 2008 産業技術硏究所論文集 Vol.27 No.-
This study examines the effects of a certain quantity of Fe_(2)O_(3) on the coloring mechanism of glaze by measuring the quantity of Fe^(2+) and Fe^(3+) that are present inside the Lime, Lime-Magnesia, Lime-Barium and Lime-ZnO. The selected sample were analyzed by a wet analysis and Mo¨ssbauer Spectroscopy. Through the experiment, the effect of Fe^(2+), and Fe^(3+), found inside the glaze on the colorization of iron glaze were studied and they were explained by using numerical values, which were obtained through in-depth analysis.
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용접부 배관의 Incomplete Penetration 결함 평가 사례 보고
이성식,김윤재,황춘옥 한국비파괴검사학회 2004 학술대회 논문집 Vol.- No.-
난방용 온수를 운반하는 배관의 시운전 과정에서 열 충격으로 인한 심한 변형이 발생하였다. 배관에서 결함의 발생 여부를 확인하기 위하여 비파괴검사(RT, UT, MT, PT)를 수행하였고, 배관 재료의 기계적 물성 변화를 확인하기 위해여 연속압입시험을 적용하였다. 방사선투과시험을 적용한 결과 배관에는 제작 시 발생한 불완전 용입(Incomplete Penetration) 결함이 배관의 거의 모든 용접부에 존재하고 있음이 새로이 발견되었다. 초음파시험으로 불완전 용입 결함의 깊이를 측정한 결과 불완전 용입 결함의 길이는 배관 원주의 2/3에 이르렀고 깊이는 두께의 60%에 이르렀다. 연속압입시험으로 기계적 물성을 측정한 결과 재료 물성의 변화는 크지 않았다. 불완전 용입부에서 파괴의 가능성과 균열의 발생 및 전파 가능성을 조사하기 위해 불완전 용입 결함을 날카로운 노치로 가정하고 사용적정성평가(Fitness For Service)를 수행한 결과 안전 계수를 고려하더라도 현재의 운전 조건 아래에서는 사용이 가능함을 확인하였다.
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