• Journal of the Society of Naval Architects of Korea
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• v.42 no.5 s.143
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• pp.479-486
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• 2005

The final goal of shift alignment design is that the bearing reaction forces or mean pressures are within design boundaries for various service conditions of a ship. However, it is found that calculated bearing load can be substantially variable according to the locations of the effective support points of after sterntube bearing which are determined by simple calculation or assumption suggested by classification societies. A new analysis method for shaft alignment calculation is introduced in order to resolve these problems. Key concept of the new method is featured by adopting both nonlinear elastic and multi-support elements to simulate a bearing support Hertz contact theory is basically applied for nonlinear elastic stiffness calculation instead of the projected area method suggested by most of classification societies. Three loading conditions according to the bearing offset and the hydrodynamic moment and twelve models according to the locations of the effective support points of sterntube bearings are prepared to carry out quantitative verifications for an actual shafting system of 8000 TEU class container vessel. It is found that there is relatively large difference between assumed and calculated effective support points.

• Proceedings of the KAIS Fall Conference
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• 2009.12a
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• pp.934-936
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• 2009

This study was to identify the correlation between the degree of burden, stress and social support of family caregivers in ICU patient. The subjects were 146 family care givers observed at a general hospital at D city. The level of stress that family caregivers experience the average points of 2.18, which is considered less than average. The level of burden that average point of 2.51. Points for level of subjective feeling ranged from 1.74 to 3.90. The average point of 3.03 is higher than that for objectively recognized feeling. The points for social support that average point of 3.03 for social support proves that families feel positive about the social support they are receiving. The level of stress which shows that the lower the income, the higher the stress. The effect on stress shows significance in subjective feelings of burden, social support, and employment, indicating that they have correlations with stress. Both the feeling of burden and social support have an impact upon the stress that patient families experience.

• Women's Health Nursing
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• v.27 no.2
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• pp.104-112
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• 2021

Purpose: This study investigated the mediating effect of family support in the relationships of anxiety and depression with maternal-fetal attachment among pregnant women admitted to the maternal-fetal intensive care unit (MFICU) in Korea. Methods: The participants were high-risk pregnant women with a gestational age of at least 20 weeks who were admitted to MFICUs in Busan and Yangsan. The Korean versions of four measurement tools were used for the self-report questionnaire: Spielberger's State-Trait Anxiety Inventory, the Edinburgh Postnatal Depression Scale, Cobb's family support measurement, and Cranley's maternal-fetal attachment scale. Data were collected from June 22 to September 20, 2020. Out of 124 participants, data from 123 respondents were analyzed. Descriptive statistics and regression analysis were done. Results: The average age of participants was 34.1 years. Their anxiety level was moderate (43.57±11.65 points out of 80) and 53.6% were identified as having moderate depression (average 10.13±5.48 points out of 30). Family support was somewhat high (average 43.30±5.03 points out of 55). The average score of maternal-fetal attachment was also somewhat high (73.37±12.14 points out of 96). Family support had a partial mediating effect in the relationships of anxiety and depression with maternal-fetal attachment among high-risk pregnant women admitted to the MFICU. Conclusion: Maintaining family support is challenging due to the nature of the MFICU. Considering the mediating effect of family support, establishing an intervention plan to strengthen family support can be helpful as a way to improve maternal-fetal attachment for high-risk pregnant women admitted to the MFICU.

• Management Science and Financial Engineering
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• v.18 no.1
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• pp.49-53
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• 2012

A novel method of transient stability analysis is presented in this paper. The proposed method extracts data points near the basin-of-attraction boundary and then builds a support vector machine (SVM) model learned from the generated data. The constructed SVM classifier has been shown to reduce dramatically the conservativeness of the estimated basin of attraction.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.22 no.3
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• pp.110-117
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• 2021

This is a descriptive study to investigate the relationship between social support, positive thinking and subjective happiness of nursing college students. Data collection was targeted to 140 nursing college students from 2nd, to 4th grade in two colleges in K area and the data collection period was from June 3, 2019, to July 9, 2019. The collected data were analyzed using SPSS WIN 21.0 program. The result of this study showed that the average degree of social support was 3.86 points, positive thinking was 3.52 points, subjective happiness was 4.68 points. Among the sub-domains of each variable, emotional support was the highest with 3.92 points in social support, and goal pursuit was the highest with 3.69 points in positive thinking. In addition, the highest score among the subjective happiness items was 'generally happy' with 4.92 points. The social support of nursing students showed a significant positive correlation with positive thinking(r=.48, p<.001) and subjective happiness(r=.49, p<.001). In addition, positive thinking also showed a significant positive correlation(r=.69, p<.001) with subjective happiness. Therefore, this study proposes the development of a program that can improve social support and positive thinking so as to improve the subjective happiness of nursing students.

• Journal of the Korean Mathematical Society
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• v.56 no.3
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• pp.751-766
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• 2019

In these notes we introduce a numerical function which allows us to describe explicitly (and nonrecursively) the Betti numbers, and hence, the Hilbert function of a set Z of three fat points whose support is an almost complete intersection (ACI) in ${\mathbb{P}}^1{\times}{\mathbb{P}}^1$. A nonrecursively formula for the Betti numbers and the Hilbert function of these configurations is hard to give even for the corresponding set of five points on a special support in ${\mathbb{P}}^2$ and we did not find any kind of this result in the literature. Moreover, we also give a criterion that allows us to characterize the Hilbert functions of these special set of fat points.

• Journal of Korean society of Dental Hygiene
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• v.18 no.3
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• pp.411-421
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• 2018

Objectives: The aim of this study was to examine factors influencing satisfaction with clinical practice in dental hygiene students. Through this study, we suggested efficient guidance to increase satisfaction levels with clinical practice. Methods: A self-reported questionnaire was filled out by 235 students of clinical dental hygiene in Seoul Gyeonggi Chungcheong Kyongsang and Jeolla province from June 9 to 30, 2017. The questionnaire consisted of questions on general characteristics (6 items), clinical practice characteristics (7 items), ego-resilience (14 items), family support (24 items), teaching effectiveness(35 items), and clinical practice satisfaction (30 items). Data were analyzed using SPSS 19.0. One way ANOVA, the Scheffe Post-hoc test, and the Pearson correlation coefficients were reviewed, and a multiple regression analysis was conducted. Cronbach's alpha of ego-resilience, family support, teaching effectiveness, clinical practice satisfaction were 0.784, 0.892, 0.954 and 0.935, respectively. Results: ego-resilience was 3.24 points, family support was 3.24 points, teaching effectiveness was 2.93 points, clinical practice satisfaction 3.44 points. The meaningful variables which influenced clinical practice satisfaction were the ego-resilience, family support and teaching effectiveness. These factors explained 40.6% of the variance in clinical practice satisfaction. Conclusions: One of the most significant predictors of clinical practice satisfaction in dental hygiene students was teaching effectiveness. Therefore, a teaching program to improve eaching effectiveness should be developed and applied.

• The Korean Journal of Applied Statistics
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• v.17 no.1
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• pp.75-88
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• 2004

The Support Vector Machine(SVM) algorithm has paid attention on maximizing the shortest distance between sample points and discrimination hyperplane. This paper suggests the total margin algorithm which considers the distance between all data points and the separating hyperplane. The method extends existing support vector machine algorithm. In addition, this newly proposed method improves the generalization error bound. Numerical experiments show that the total margin algorithm provides good performance, comparing with the previous methods.

• Journal of Korean Academy of Nursing
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• v.22 no.3
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• pp.352-361
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• 1992

This study was designed to identify the relation between the perceived family support and social adjustment of discharged patients with chronic mental illnesses. The subjects for this study were 50 patients with chronic mental illnesses receiving out-patient treatment at one general hospital and one private hospital in Seoul. The data were collected during the period from April 25, 1991 to May 27, 1991. The perceived family support was measured by the Family Support Scale developed by Hyun Sook Kang. A questionnaire which was developed by Weissman was modified by the author of this study to measure the Social Adjustment. The data were analyzed by descriptive statistics and Pearson Correlation Coefficients, using the SPSS program. The results of this study can be summarized as following ; 1) For the perceived family support, the mean was 2.63 points and the source of family support was almost always the mother. 2) For the social adjustment level, the mean was 2.62 points, and the results showed the best social adjustment was in the area of parental role and family adjustment, and the poorer adjustment was in the area of work and leisure. 3) The relationship between the perceived family support and social adjustment revealed a significant correlation.(r＝.38, p＜.05) Therefore the hypothesis “the higher the level of perceived family support, the higher the social adjustment level” was accepted. In conclusion, the study revealed that family support is an important factor related to the social adjustment level in patients with chronic mental illnesses.

• Journal of Korean Academy of Nursing
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• v.49 no.3
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• pp.298-306
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• 2019

Purpose: This study aimed to examine the levels of perceived self-management support, self-efficacy for self-management, and health-related quality of life (HRQoL) in cancer survivors, and to identify the mediating effect of self-efficacy in the relationship between perceived self-management support and HRQoL. Methods: This study used a descriptive correlational design. Two hundred and four cancer survivors who had completed treatment participated in the study. Measurements included the Patient Assessment of Chronic Illness Care Scale, the Korean version of the Cancer Survivors' Self-Efficacy Scale, and the Medical Outcomes Study Short Form-36. Data were analyzed using descriptive statistics, Pearson's correlation coefficient analysis, and multiple regression analysis using Baron and Kenny's method for mediation. Results: The mean score for perceived self-management support was 3.35 out of 5 points, self-efficacy was 7.26 out of 10 points, and HRQoL was 65.90 out of 100 points. Perceived self-management support was significantly positively correlated with self-efficacy (r=.29, p<.001) and HRQoL (r=.27, p<.001). Self-efficacy was also significantly correlated with HRQoL (r=.59, p<.001). Furthermore, self-efficacy (${\beta}=.55$, p<.001) had a complete mediating effect on the relationship between perceived self-management support and HRQoL (Z=3.88, p<.001). Conclusion: The impact of perceived self-management support on HRQoL in cancer survivors was mediated by self-efficacy for self-management. This suggests that strategies for enhancing self-efficacy in cancer survivors should be considered when developing self-management interventions for improving their HRQoL.