• Journal of the Korean Home Economics Association
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• v.43 no.9 s.211
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• pp.109-127
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• 2005

The present study examined the relationships among maternal attachment, self-concept, peer relationship, and school adjustment. The subjects were 293 Korean-Chinese elementary school students living in Yanji and Shenyang, China. The Inventory of Parent and Peer Attachment (Armsden & Greenberg, 1987), Social Competence Inventory(Doh & Falbo, 1999), and Self-Perception Profile for Adolesents(Harter, 1988) were used to measure the subjects' maternal attachment, and peer relationship, school adjustment, and self-concept, respectively. When structural equation modeling was applied, the results supported not only the model that maternal attachment and self-concept exert an influence on peer relationship, but also the model that they exert an influence on school adjustment. The results of this study suggest that the secure maternal attachment of Korean-Chinese works as an important mechanism that explains their peer relationship and adjustment at elementary school.

• 한국연소학회:학술대회논문집
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• 2012.04a
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• pp.247-248
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• 2012

Unidentified self-ignitions were reported when the high-pressure hydrogen gas suddenly leaked out. This paper presents a flow visualization study to investigate the self-ignition mechanism in a test tube how the ignition process is initiated and the flame propagates with measurement of a number of pressure and light sensors installed in the tube supported the analysis of the self-ignition. The test result showed the location of the self-ignition taken place and critical static pressure at the boundary layer for self-ignition.

• Journal of the Korean Home Economics Association
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• v.29 no.4
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• pp.99-114
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• 1991

This study was designed to determine the relative importance of specific family environmental variables and positive self-concept of psychological variables in explaining family life satisfaction. Data were collected from 423 housewives in Daegu City. Multivariate regression and factor analysis and path analysis were used to analyze the data. The results of this study partially supported the hypothesis that positive self-concept of psychological factors would be more closely associated with family life satisfaction than would family environmental factors. The findings were as follows: 1. Urban housewives' positive self-concept and family life satisfaction were relatively high. 2. Among family environment variables, health, wives' education level, husband's satisfaction with job significantly influence on positive self-concept. 3. The variables which significantly affect family life satisfaction are husband's satisfaction with job, monthly family income, health. 4. From the path analysis, it found that positive self-concept has the most great influence on family life satisfation.

• Journal of the Korean Geosynthetics Society
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• v.22 no.3
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• pp.11-25
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• 2023

In this study, the design and numerical analysis method of the inclined self-supported wall using cement treated soil were studied. In the case of the inclined self-supported wall, the active earth pressure decreased due to the decrease in the coefficient, Ka according to the slope (angle) and the weight decreasing effect, thereby increasing the overall stability. The wall with the slope caused a change in failure mode from overturning to sliding on the excavation side, and the optimal slope was evaluated to be about 10°. Compared to the strength reduction method, the overall stability in numerical analysis results in conservative results in limit equilibrium analysis, so it was found that this method should be attended when designing. As a result of the parameteric study, the stability on bearing capacity and compression failure did not significantly increase above the slope of 10° when the surcharge was small (about 20kPa or less). In the case of cohesion of the backfill, The results similar to numerical analysis were found to consider cohesion. It was evaluated that stability on sliding, oveturning, shear, and tension failure increases in proportion to the thickness of the wall, but there is no significant change in the stability on the bearing capacity and compressive failure regardless of the thickness of the wall above a certain angle (about 10°).

• Structural Engineering and Mechanics
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• v.43 no.5
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• pp.583-605
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• 2012

This paper presents a spatial catenary cable element for the nonlinear analysis of cable-supported structures. An incremental-iterative solution based on the Newton-Raphson method is adopted for solving the equilibrium equation. As a result, the element stiffness matrix and nodal forces are determined, wherein the effect of self-weight and pretension are taken into account. In the case of the initial cable tension is given, an algorithm for form-finding of cable-supported structures is proposed to determine precisely the unstressed length of the cables. Several classical numerical examples are solved and compared with the other available numerical methods or experiment tests showing the accuracy and efficiency of the present elements.

• Structural Engineering and Mechanics
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• v.17 no.6
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• pp.879-898
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• 2004

A method of making simply supported girders continuous is described for bridges with spans of 30-45 m. The splicing method takes advantage of an induced secondary moment to transform the self-weight stresses in the precast simply supported girders into values representative of a continuous girder. The secondary moment results from prestressing of continuity tendons and detensioning of temporary tendons in the girders. Preliminary sections are selected for spliced U-girder bridges with a range of span lengths. Use of the proposed technique results in girder depth reductions of 500-800 mm when compared to standard simply supported I-girder bridges. The flexural behavior of an example bridge with 40-m spans is examined to illustrate the necessary considerations for determining the optimum sequence of splicing operations.

• Journal of Korean Academy of Nursing Administration
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• v.7 no.1
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• pp.165-172
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• 2001

The purpose of this study was to determine the relationship between self-efficacy and adherence of exercise in patients with ankylosing spondylitis. The subjects for this study were the 50 patients with ankylosing spondylitis who had been diagnosed as out patients in the Rheumatism Center of one university hospital in Seoul and participated in the 8 weeks exercise program. The data were collected by a questionnaire the period from April 1 to May 2, 2000. Data were analyzed by t-test, ANOVA, Pearson's correlation coefficient, Frequencies, using the SAS program. The results were as follows: The mean duration for exercise adherence of ankylosing spondylitis was 12.2 months. The mean self-efficacy score was 74.3 in a possible range of 10 to 100. A significant difference of self-efficacy was found between adherers and non-adherers and self-efficacy of adherer was higher than that of non-adheres(t=4.25, p=.001). Self-efficacy was significantly associated with the total duration of an exercise adherence(r=.42, p=.001). These findings may indicate that the relationship between self-efficacy and exercise adherence in patients with ankylosing spondylitis was supported. From these results, it can be suggested that the relationship between self-efficacy and exercise adherence in patients with ankylosing spondylitis. Therefore, intervention is needed to promote self-efficacy of ankylosing spondylitis and futher studies should develop self-efficacy promoting programs for patients with ankylosing spondylitis.

• Journal of Korea Society of Digital Industry and Information Management
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• v.11 no.2
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• pp.167-179
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• 2015

Recently the small and medium sized companies are more difficult to find people than large companies. So it is natural that having a great interest in leadership and its effects in organizations. This study examines how transformational leaders influence on empowerment, self-efficacy and job satisfaction in IT company. Investigating the effect between transformational leadership and job satisfaction in IT company may also be a tip of an understanding of how to manage employee turnover. Samples of 387 employees in IT companies were analyzed by structural equation modeling using Lisrel 8.7 and it showed acceptable data-fit of proposed model and supported all of research hypotheses. The empirical results indicated that transformational leadership significantly influences empowerment, self-efficacy and job satisfaction and also it confirmed that empowerment and self-efficacy are effective mediators linking job satisfaction. That is the findings reveal that transformational leaders boost employee's job satisfaction indirectly.

• Knowledge Management Research
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• v.21 no.1
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• pp.151-173
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• 2020

The purpose of this study is to identify the antecedents that impact on the individual knowledge sharing based on motivational perspectives. Specifically, the authors investigate the roles of general self-efficacy and popularity on knowledge sharing drawn on costly signaling theory and trait activation theory. Data from 227 pairs of employees and coworkers working in companies located in South Korea supported the model. General self-efficacy was positively related to knowledge sharing and popularity was positively associated to knowledge sharing. Also, by taking an interactional approach, our study demonstrated the moderating effect of popularity on the relationship between general self-efficacy and knowledge sharing. The positive relationship between general self-efficacy and knowledge sharing is significant when popularity is low, but not significant when popularity is high. Our findings suggest that the various motivation types including intrinsic and extrinsic motivations for knowledge sharing of individuals exist simultaneously and these motivations have an interactive effect on knowledge sharing.

• Journal of Digital Convergence
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• v.19 no.4
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• pp.193-204
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• 2021

The purpose of this study was to examine the mediating effect of self-efficacy moderated by social support in the influence of local children's center cultural program commitment on career awareness and development of children and adolescents using Local Children Centers' Services. For this purpose, the questionnaires of local children's center cultural program commitment, career awareness and development, social support, and self-efficacy was conducted to 190 elementary school students in the 3rd grade and middle and high school in 22 children's centers in N city. The statistical packages were SPSS PC+ 25.0 and SPSS MACRO. The main results are as follows: First, cultural program commitment had positive correlation with self-efficacy, social support, career awareness and career development. Also, self-efficacy had a positive correlation with social support, career awareness and career development, and social support had a positive correlation with career awareness and career development. Second, the hypothesis model was supported that cultural program commitment positively affects career awareness mediated by self-efficacy moderated by social support. In other words, the more they participated and commited in cultural programs, the more self-efficacy increased leading to more career awareness. Also, the more social support was felt, the more the positive influence of cultural program commitment on self-efficacy increased. The hypothesis model was supported that cultural program commitment positively affects career development mediated by self-efficacy moderated by social support. In other words, the more they participated and commited in cultural programs, the more self-efficacy increased leading to more career development. Also, the more social support was felt, the more positive influence of cultural program commitment on self-efficacy increased. The limitation and future tasks were discussed.