• Journal of the Korea Convergence Society
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• v.8 no.3
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• pp.141-150
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• 2017

The purpose of this study was to identify relationship among the depression, social support and quality of sleep in elderly insomnia patients. A total of 143 patients with insomnia diagnosed according to DSM-IV criteria. Quality of sleep, depression, and social support were measured using a self structured questionnaire and participant's medical records were reviewed for obtaining their clinical information. Quality of sleep was positively associated with depression(r=.255, p<.05), and negative correlation with social support(r=-.270, p<.001). The significant factors for quality of sleep were information support(${\beta}=-0.406$, p<.05) and affectionate support(${\beta}=-0.525$, p<.05). These factors explained 13.2% of the variance in quality of sleep. The elderly patients suffering the insomnia need the nursing interventions considering information support and affectionate support in order to improve sleep quality.

• Korean Journal of Construction Engineering and Management
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• v.11 no.1
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• pp.130-141
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• 2010

Poor expertise in equipment operation and installation, coupled with unpredictable natural disaster, usually directly leads to disastrous accidents of large lifting equipment such as tower cranes. For example, 52 tower cranes fell down due to the unstable support in Korea at the attack of Typhoon "Maemi" in 2003, which damaged property and caused loss of life. In high-rise construction projects, top-slewing or luffing-jib tower cranes needs checking the stability of lateral-support in addition to the bottom support such as the foundation. In this study, the optimization algorithm for lateral-support of tower cranes is conducted, which is expected to enhance the structural stability of tower cranes and save the cost in conflict with the safety.

• Journal of the Korean Society for Railway
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• v.17 no.4
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• pp.245-250
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• 2014

This paper, as a study for the serviceability design of railway bridges with concrete track, presents the effects of design parameters of tracks and bridges on the forces acting on the rail supports of the track. To calculate the forces acting on the track, an unequal spacing discrete supported model with different spacing of rail supports was induced. Design parameters are the rail support spacing of expansion joints above abutments or piers of bridges, the distance from the support of a girder to the last rail support on the end of the girder, and the number of additional rail supports. The causes of the displacement of track are axial force, unit vertical displacement, and unit rotation. From the analysis, the maximum compressive force and the maximum uplifting force acting on the rail supports were determined and the effects of the rail support spacing on the forces acting on the track were presented.

• Geotechnical Engineering
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• v.13 no.1
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• pp.75-84
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• 1997

This paper presents a bearing capacity determination method for spread footings subjected to vertical central loading and located above underground cavities. For the development of the method, a parametric study on bearing capacity of a spread footing located above an underground cavity was performed by using a threetimensional elasto-plastic finite element computer program. From the results of the finite element analysis, bearing capacity values for the conditions analyzed were determined and used as a data base from which semiempirical equation to for the bearing capacity determination method were formulated by means of a regression analysis. The effectiveness of this method was illustrated by comparing the bearing capacity values computed from this method with those of available model footing tests as well as finite element analysis data. It was concluded that the method presented in this paper can be effectively used for practical applications at least within the conditions investigated.

• The Journal of the Korea Contents Association
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• v.13 no.9
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• pp.248-259
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• 2013

The purpose of this study is to investigate the influence of the perceived parental attachment and social support on adjustment to college life in university students. For this study, research data about adjustment to college life, the perceived parental attachment and social support were collected from 386 university students. Results of correlation and multiple regression analysis showed that the perceived parental attachment and social support are the most influential factors. Major findings and conclusions were as follow: First of all, the finding shows that the adjustment to college life has a significant static correlation with both parental attachment and Social support, respectively. Second, parental attachment and social support of friends have more influence on adjustment to college life, especially in academic, social, personal-emotional and environmental one. Thus, results of this study show the importance of a wide variety of policy research, continuous counseling, and development of programs for a better adjustment to college life.

• The Journal of the Korea Contents Association
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• v.17 no.9
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• pp.575-586
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• 2017

The purpose of this study was to examine the effect of career barriers and social support on the career decision making self-efficacy. It was established the study modeling which shows the moderation effect of social support in the relationship between career barriers and career decision making self-efficacy. The questionnaire has carried out for 307university students. The research findings were follow: There are significant differences in career decision making self-efficacy to sex. but there are non significant differences in career decision making self-efficacy to grade and affiliation. Career barriers has significant influenced on the career decision making self-efficacy. The more they had career barriers, the less they had career decision making self-efficacy. And there exist significant moderating effect of social support. The higher level of social support, the more the effects of career barriers on career decision making self-efficacy.

• Journal of the Korean Society of Hazard Mitigation
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• v.5 no.4 s.19
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• pp.37-47
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• 2005

The purpose of this study is to estimate the bearing capacity and settlement characteristics of the weathered granite masses, and on the process to achieve the purpose, in the first place, the weathered degree according to the absorption index was examined and reviewed, then plate bearings test in in-situ depth were tested, and finally the result was compared and examined with the result of the existing, estimate method and pressuremeter test. In order to achieve the purpose of this study, a typical area distributed with weathered granite masses, gyeonggi area, was chosen as a sample site for testing, and in the result, it appeared and found out that the more the weathered degree increases when the plate bearing test are tested, the more the bearing capacity decreases a numerical indexes and the more greatly the width of the decrease of bearing capacity increases around the boundary of specific, weathered degrees. Also, In the result from estimating the bearing capacity of weathered granite masses by the existing, suggested formula, it appeared that there is a tendency that the more the weathered degree increases, the more similar the bearing capacity becomes with the result of plate bearing tests.

• Korean Journal of Family Social Work
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• no.23
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• pp.43-70
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• 2008

This study investigated the relationship between social support and caregiving self-efficacy among 530 mothers of persons with intellectual disabilities in their childhood(age 3-12), adolescence(age 13-18), and adulthood(age 19-35), exploring the moderating effect of the life span affiliation of the children with disabilities. The analysis revealed that greater perception of social support predicted higher level of caregiving self-efficacy for all the mothers. However, the moderating effect was detected indicating that there were differences in the effects of social support on caregiving self-efficacy across groups. Although social support was found to have some positive effects on caregiving self-efficacy for each group of mothers of both adolescents and adults, no effects for a group of mothers of children. These findings suggested that greater emphasis be placed on the expanded provision of social support for families of persons with intellectual disabilities in their developmental stages following the childhood.

• Journal of the Korean Geotechnical Society
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• v.35 no.6
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• pp.27-38
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• 2019

Bearing capacity of a pile in homogeneous soil is the sum of end bearing and skin resistance, and the skin resistance is more prominent in sandy soil. Bearing capacity of a pile in pile groups especially in sandy ground should be designed under the consideration of the influence by the adjacent piles. In this study, the end bearing capacity of a pile in pile groups was experimentally investigated. For this purpose, piles were installed in sandy ground in a circular test box, and end bearing - settlement behavior of the pile was measured while the pile was loaded. As the results, end bearing - settlement relation curves of the piles showed a distinct limit value. Limit value of the end bearing was little affected by skin friction and pile diameter, and it became a constant value as pile penetrates deeper. End bearing was not affected by the adjacent piles in a group of piles, when their clearance was larger than the pile diameter.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.20 no.1
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• pp.64-74
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• 2019

The aims of this study were verifying the influences of social support(family, friend, community) on perceived burdensomeness and hopelessness and mediating effects of perceived burdensomeness and hopelessness between social support and suicidal ideation. In results, family support reduced suicidal ideation of the elderly through mediating role of perceived burdensomeness as well as serial mediating effect of perceived burdensomeness and hopelessness. Friend support reduced suicidal ideation of the elderly through parallel and serial mediating effects of perceived burdensomeness and hopelessness. Community support reduced suicidal ideation of the elderly through mediating role of hopelessness. Social support show not direct effect but indirect effect on suicidal ideation through reduction of negative influencing factor(burdensomeness, hopelessness). In conclusion, we proposed it were needed that various efforts which improve the relation between family members in the age of nuclear family and ageing era, social policy support which development social network of the elderly, and the efforts which keep informed the social policy support of the community.