• Journal of Digital Convergence
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• v.15 no.9
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• pp.111-123
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• 2017

This study examines the effects of personality characteristics and self-leadership on job engagement and turnover intention, focusing on the mediating role of psychological ownership in the fourth industrial revolution and convergence environment. While personality characteristics had a significant positive effect on job engagement, there was indirect effect on turnover intention through mediation of psychological ownership. Self-leadership has a direct and indirect effect on job engagement, and it has a direct positive effect on turnover intention and negatively influences through mediation of psychological ownership. And the effect of psychological ownership was confirmed increasing job engagement and reducing turnover intention. The results of this study have implications for human resource development and organizational management.

• The Journal of the Korea Contents Association
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• v.14 no.9
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• pp.120-130
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• 2014

The purpose of this study was to evaluate the effects of line dance activity on the balance factors during static standing to reveal the exercise intervention for fall prevention. A 15-week line dance programme was applied to 16 elderly females who aged more than 65 years in the community. Balance ability during static standing was evaluated by the range of center of pressure(cop), the velocity of cop, and sway area that calculated on the basis of ground reaction force data, forces, and moments. The range and velocity of cop in the anterio-posterior were significantly reduced after line dance(p<.01, p<.05, respectively), but change in those of cop in the medio-lateral was not found. It was demonstrated that 16-week line dance activities allow more effective in anterio-posterior stability and sway area of static standing. It was suggested that the effect of fall prevention exercise should be studied more associate with fall from vestibular and sensory system as future study.

• Journal of the Korea institute for structural maintenance and inspection
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• v.24 no.4
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• pp.81-90
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• 2020

A textile and capillary tube composite panel(TCP) was developed to simultaneously retrofit the seismic performance and the energy efficiency (e.g. heating or insulation performance) of existing unreinforced masonry (URM) buildings. TCP is a light-weight mortar panel in which carbon textile reinforcements and capillary tubes are embedded. Textile reinforcements plays a role of seismic retrofit and capillary tubes that hot water circulates contribute to the energy retrofit. In this paper, the static cyclic loading tests were performed on the masonry walls with/without TCP to understand the seismic retrofit effect of TCP retrofit and the results were summarized. The results of the test showed that the TCP contributed to increase the capacity of the Shear strength and ductility of the URM walls. In addition, the deformation of the wall after cracking was substantially controlled by the carbon textile.

• Journal of Venture Innovation
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• v.2 no.1
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• pp.81-92
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• 2019

The purpose of this study was to identify the mediating effect of burnout on the relationship between social support and job satisfaction. Social support should be noted as an important environmental factor that can affect job satisfaction. This study surveyed 1,147 workers of domestic companies and collected data, and the results of the study are as follows. First, social support and job satisfaction were shown to have a positive correlation. Second, social support and burnout were found to have a negative correlation. Finally, burnout was found to play a mediating role in the relationship between social support and job satisfaction. This results demonstrate that, while social support has a direct positive impact on job satisfaction, it has also a indirect on job satisfaction via burnout. Therefore, organizations should consider ways to strengthen the organization's social support and lower the level of individual burnout in order to improve job satisfaction. Implications and limitations of this study and future research tasks are described.

• Journal of Digital Convergence
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• v.11 no.11
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• pp.643-650
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• 2013

This study was conducted to examine the effects of low-density exercise on physical and psychological function of the frail elderly. The research design was nonequivalent control group pretest-posttest design. Data were analyzed using descriptive statistics, x2-test, Mann-Whitney U test and Cronbach's ${\alpha}$ with SPSS/Win 17.0 program. There was a significant improvement in Lt. Grip strength(U=56.00, p<.000), Rt. Grip strength(U=40.00, p<.000), TUG(U=95.00, p<.022), Depression(U=94.00, p<.011) in the experimental group compared to the control group. The low-density exercise program showed the effects to improve the physical and psychological functions of the frail elderly. In recommendation, this exercise program could be utilized as a health promoting program for the frail elderly.

• The Journal of the Convergence on Culture Technology
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• v.6 no.4
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• pp.517-525
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• 2020

The aim of this study is to identify the influence of low back pain experienced by emergency room (ER) nurses and the mediating effect of impairments in the activities of daily living (ADL). The subjects of the study were 188 clinical nurses employed in emergency rooms at high-level hospitals in Daegu and Gyeongsangbuk-do. The collected data were analyzed using a program called SPSS 22.0, and the methods used include descriptive statistics, t-test, ANOVA, Pearson correlation analysis, and regression analysis. The results of the study are as follows: First, low back pain in emergency room nurses positively correlated with impairments in the ADL and depression. Impairments in the ADL also positively correlated with depression. Second, low back pain in ER nurses influenced their depression, which was found to be mediated by the ADL.

• Journal of the Korea institute for structural maintenance and inspection
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• v.7 no.3
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• pp.183-191
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• 2003

A four-story reinforced concrete moment resisting frame damaged from an ultimate limit state earthquake is upgraded with prestressing cable bracing. The purpose of this study is to investigate the bracing configuration effects on the 3-D building response using thee different locations of the bracing systems for the retrofitted building. Since the previous work done by the author proved that static incremental loads to collapse analysis as a substitute to dynamic non-linear time history analysis was a valid alternative tool. Thus, static load to collapse analysis is solely applied to evaluate the seismic performance parameters of both the original and upgraded buildings in this study. In results, the exterior bracing system is effective in restraining torsional behavior of the structure under seismic loads, and no sudden failure occurs in this system that enhances the ductility of the building due to the gradual change of building stiffness as the lateral load increases.

• Journal of KIISE:Computer Systems and Theory
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• v.28 no.11
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• pp.561-572
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• 2001

Since energy consumption of CMOS circuits has a quadratic dependency on the supply voltage, lowering the supply voltage is the most effective way of reducing energy consumption. We propose an intra-task voltage scheduling algorithm for low-energy hard real-time applications. Based on a static timing analysis technique, the proposed algorithm controls the supply voltage within an individual task boundary. By fully exploiting all the slack times, as scheduled program by the proposed algorithm always complete its execution near the deadline, thus achieving a high energy reduction ratio. In order to validate the effectiveness of the proposed algorithm, we built a software tool that automatically converts a DVS-unaware program into an equivalent low-energy program. Experimental results show that the low-energy version of an MPEG-4 encoder/decoder (converted by the software tool) consumes less than 7~25% of the original program running on a fixed-voltage system with a power-down mode.

• Journal of the Korean Society for Computer Game
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• v.31 no.4
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• pp.91-99
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• 2018

A growing body of research has focused on the negative effects of Internet gaming. This issue has become an increased public health concern in Korea. However, little is known regarding the positive effect of Internet gaming and its etiology. This study examined the effects of gaming motivations on gaming behaviors based on self-determination theory. Specifically, we investigated the associations of intrinsic and extrinsic gaming motivations with adaptive and maladaptive game uses. A cross-sectional data collected from a sample of 3,000 young adults using 2016 Korean Video Gaming Survey was analyzed. Measurement model analysis and structural equation modeling were conducted as primary analyses. The findings highlight the different effects of intrinsic and extrinsic motivations on gaming behaviors, such as adaptive and maladaptive game uses. Intrinsic motivations, such as experience-seeking and achievement-seeking, were associated with adaptive game use. Meanwhile, extrinsic motivations, such as sensation-seeking and monetary reward-seeking, were associated with maladaptive game use. The findings provide a better understanding of video gaming in light of both adaptive and maladaptive game uses. The implications for practice and policy were discussed.

• The Journal of the Korea Contents Association
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• v.21 no.9
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• pp.762-770
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• 2021

This study aims to identify the relationship between stress and feeling of happiness among high school students, and to examine the double mediating model of subjective well-being and gratitude disposition on that relationship. Participants of this study were 245 male and female high school students. Perceived Stress Scale, Satisfaction with Life Scale, Emotion Frequency Test, Gratitude Questionnaire-6, and Subjective Happiness Scale were used for this study. To analyse a sequential double mediating effect, PROCESS Macro 3.5 Model 6 was used. Results revealed that stress was negatively correlated with subjective well-being, gratitude disposition, and feeling of happiness among high school students. And, subjective well-being was positively correlated with gratitude disposition and feeling of happiness, while gratitude disposition was positively correlated with feeling of happiness. It was found that subjective well-being and gratitude disposition were sequentially mediating stress and feeling of happiness among high school students. Because these findings suggest that subjective well-being and gratitude disposition play important roles in adolescents' happiness, it is necessary to promote their subjective well-being and gratitude disposition.