• Journal of the KSME
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• v.28 no.4
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• pp.377-386
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• 1988

선박, 해양구조물을 중심으로 파괴손상례, 파괴해석방법, 파괴의 방지대책에 대해 기술하였다. 실제 구조물의 파괴는 매우 복합적인 요인에 의해 발생되기 때문에 그 요인 분석이 쉽지 않으나 최근 들어 파괴역학, microfractography의 발달로 비교적 상세하게 파괴요인이 밝혀지게 되었다. 일단 파괴가 발생하면 그 사고를 case study하여 대책을 강구함으로서 같은 류의 사고 발생률을 감소시킬 수 있다. 그러나 새로운 성능을 갖춘 구조물, 특수한 환경에 사용되는 구조물 등과 같 이 이제까지 경험하지 못한 구조물의 경우에는 사고 발생률이 높아 질 수밖에 없다. 이러한 구조물의 파괴를 방지하기 위해서는 보다 정확한 응력 또는 변형률 해석, 각종 현상을 재현한 시뮬레이션 시험법의 개발, 비파괴 검사기술의 개발과 더불어 재료개발에 병행되어야 할 것이다. 아울러 구조물의 잔존수명 예측 기술이 더욱 개발되어야 할 것이다.

• Journal of Digital Convergence
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• v.16 no.5
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• pp.341-349
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• 2018

This study was done to identify the significant convergence factors of affecting depression of elderly women in rural area. A total of 161 elderly women aged 65 and over were collected and data were analyzed using multiple logistic regression with SPSS/WIN 21.0. The result indicated that 42.9% of participants were depressed. In logistic regression, significant factors of depression were age(p<.001, OR=1.146), economic status (p=.004, OR=.123), number of family member living together (p=.013, OR=.020), number of social activities (p=.012, OR=.436), number of disease diagnosed (p<.001, OR=3.847), visual function (p=.023, OR=3.867), family support (p=.048, OR=.707), which accounted for 68.6% of the variance. The results of this study can contribute to develop various convergence strategies to prevent the prevalence of depression of elderly women in rural area. Further studies are needed to confirm the level of contribution of visual disability to depression in rural older women.

• Journal of the Korea Convergence Society
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• v.11 no.7
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• pp.193-206
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• 2020

Despite recent changes in life style, the content called bookstore has steadily stood by our side, changing its shape. In this environment, This manuscript is a quantitatively empirical study that individual innovation affects a combined bookstore's service design factors and the user's intention to word of mouth. Researchers believed that individual innovation would affect a combined bookstore's service design factors. It was also assumed that there would be considerable causality between the combined bookstore's service design factors deduced through prior study. Furthermore, the assumption that these parameters would affect internal variables, perceived ease of use, perceived usefulness and satisfaction, word of mouth intentions was presented, and verified using An Integrated Model of Extended Technology Acceptance Model and Post Acceptance Model. Researchers expect that this research will contribute significantly in that it is a developer's approach to the combined bookstore that are seen as major tenants in large retail facilities.

• The Korean Journal of Elementary Counseling
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• v.11 no.3
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• pp.331-350
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• 2012

This paper aims at investigate factors inducing school violence from an ecological standpoint on the assumption that a correct analysis of what brings about it must be carried out in advance in order to prevent and cope with school violence, For that, an ecological heuristic model of factors related to school violence devised by Benbenishty and Astor(2005), who were greatly influenced by the ecological developmental theory of Bronfenbrenner(1979), was briefly introduced. On the basis of this model the author classified school violence factors into school-level factors, individual factors, family-level factors, and community contextual factors and examined relevant literature and preceding studies. Through this discussion a conclusion was drawn that, because school violence occurs not by one cause but by various causes including school, individual, family, community related factors, and it can be called 'a synthetic violence type', it is necessary to set up synthetic measures against these factors on a long-term basis. It also was concluded that only when schools, homes and societies free from factors inducing school violence are built, the countermeasures against school violence will be truly effective.

• Korean Journal of Environment and Ecology
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• v.23 no.4
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• pp.346-352
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• 2009

This study was conducted in order to provide as a basic materials of sea cliff vegetation structure through distribution related with the landform and growth pattern of mixed growth plants by ordination method in the Peucedanum japonicum community of Korea. The mixed growth plants of frequency over 10% growth with Peucedanum japonicum community of sea cliff was investigated as a total 26 species, and the frequency of appearing plants was the highest in the Aster spathulifolius(55.7%). Growing pattern of mixed growth plants was a difference by the landform factors as such the inland side, coastline side, flat and slope. Growing pattern was classified into typicality type, one-sided type and complex type. Growing pattern of the typicality type was good distribution in total landform factors, the one-sided type was good distribution in 1 landform factor and the complex type was good distribution in 2 landform factors. In growing pattern of mixed growth plants with Peucedanum japonicum, Artemisia capillaris and Sedum oryzifolium was typicality type, Elymus dahuricus and Artemisia princeps was one-sided type, and Aster spathulifolius, Miscanthus sinensis, Calystegia soldanella and Lysimachia mauritiana was complex type. In total plants of mixed growth, growing pattern of 16 species of 61.5% was good as complex type.

• Journal of Korean language education
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• v.28 no.2
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• pp.1-36
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• 2017

This study investigated the correlation between learners' psychological and social factors and their syntactic complexity of speaking. The study collected samples of Korean spoken production of 61 learners with English, Chinese, Japanese and other L1 backgrounds and applied mini-TOPIK, mini-AMTB, and SASIQ for 70 minutes. The study found that: (i) integrative motivation showed positive correlation with a number of simple complex clauses, but instrumental motivation correlated negatively with a number of adverbial clauses, indicating that high motivation hindered producing highly complex clauses although it triggered producing simple complex clauses, (ii) social contact with L2 native speakers showed positive correlation with general L2 development and a number of simple complex clauses, but revealed negative correlation with double or triple complex clauses, (iii) hours of L2 listening showed very strong positive correlation with producing triple complex clauses and general proficiency, but indicated negative correlation with a number of simple complex clauses. The study reported that high motivation toward Korean learning and active social activities with Korean native speakers helped produce simple complex clauses while hours of listening to Korean helped produce triple complex clauses.

• Journal of Digital Convergence
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• v.15 no.9
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• pp.375-384
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• 2017

The Purpose of this study was to examine, the effects of depression, family Support, and medical suport on rehabilitation motivation among stroke patients. Participants in this cross- sectional, descriptive study were 206 stroke patients who completed a self-report structured questionnaire. The data were analyzed using descriptive statistics, t-test, one-way ANOVA, correlation and stepwise multiple regression analyses with IBM SPSS Win 22 Program. Family support, medical support, education and age were strong predictors of rehabilitation motivation in stroke patients. These variables explained 58.3% of the variance in rehabilitation motivation. Depression was not a predictor of rehabilitation motivation. A higher level of rehabilitation motivation was associated with lower levels of depression and higher levels of family support and medical support. These results show that effective strategies for improving family support and medical support. are needed to improving rehabilitation motivation among stroke patients.

• Journal of Digital Convergence
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• v.17 no.1
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• pp.365-373
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• 2019

This study was conducted to investigate the factors affecting the quality of life of elderly who live alone according to gender. The participants in this study were 959 elderly living alone from a total of 22,948 individuals studied in the 2013-2015 Korean national health and nutrition examination survey. IBM SPSS 23.0 was used to analyze the data. There were significant differences between the two groups in age, level of education, and amount of calorie intake. Economic status, presence of arthritis, presence of restrict activity, subjective health status had an influence on quality of life in men with an explanatory power of 50.5% (p < .001). Presence of back pain, subjective health status, suicidal ideation had an influence on quality of life in women with an explanatory power of 41.4% (p < .001). Therefore, in order to improve the quality of life of elderly living alone, it is necessary to provide appropriate intervention depending on gender.

• Journal of the Korea Convergence Society
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• v.9 no.11
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• pp.127-135
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• 2018

The purpose of this study is to investigate the convergence related factors of subjective oral care awareness in high school students. 218 data were analyzed; subjective oral care awareness were $3.59{\pm}0.44$, significantly affected by religion, intake of fast food and carbonated drink(p<.05). According to analysis, students who stated reasons for halitosis as 'Tooth brushing to eliminate bad breath' and 'Friends bad breath are discomfort' showed high subjective oral care awareness, however, it was low when students were not aware of their bad breath. Therefore, increasing tooth brushing frequency and reducing the intake of carbonated drink and junk food are needed to boost subjective oral care awareness. Also, it is considered that educational contents and materials for factors which affects subjective oral care awareness should be developed for high school student's Oral health education class.

• The Journal of the Korea Contents Association
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• v.16 no.10
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• pp.382-392
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• 2016

This study organize a self-directed learning in complex structures. And based on this, It was developed self-directed learning scale for university students. It was a analyzing literature and reviewing previous studies for developed scale. Therefore, Self-directed learning model was configured into motives, performance behaviors, and learning management behaviors. On the basis of this, the present study constructed 19 sub-factors and developed 114 scale items. First, a preliminary scale was developed and its reliability was assessed by administering the scale to 128 students attending A university. The result showed that the reliability of every sub-factor was good and, therefore, the scale was developed with no item removed. To verify the validity of the scale, this study evaluated reliability and construct validity by administering the scale to 674 students going to A university. The reliability and validity of all sub-factors were found to be good. A confirmatory factor analysis was performed to verify construct validity and the result revealed that the first model was not an appropriate model. For this reason, the first model was modified once by taking the model modification index into account and it was found that ${\chi}^2$ (563.254), CFI=.963, NFI=.951, RMSEA=.064. Thus, the model was verified as a valid model. The results of this study imply that it is possible to point out learners' weaknesses and strengths by measuring activities taking place in the learning process in detail.