• Korean Journal of School Psychology
• /
• v.16 no.3
• /
• pp.361-380
• /
• 2019

The purpose of this study was to examine the moderated mediating effect of emotional expressiveness through social-anxiety on the relationship between university student' life stress and smart phone overdependence. For this purpose, the survey was conducted at the Southern Post using revised life stress scale for college students(RLSS-CS), social anxietyy scale(SIAS), smart phone overdependence scale(S-scale), and emotional expressiveness scale(BEQ). Data collected from 400 (200 men, 200 women) were analyzed using SPSS 21.0 and SPSS Macro. The results were as follows: first, university students' life stress were positively associated with social-anxiety, smart phone overdependence and emotional expressiveness. Secondly, partially mediating effect of social-anxiety on the process of university students' life stress affecting smart phone overdependence. Thirdly, emotional expressiveness also moderated the mediating effect of university student' life stress on smart phone overdependence through social-anxiety. In this study, the pathway leading to the smart phone overdependence was examined jointly, including life stress, social-anxiety and emotional expressiveness. Finally, the implications and limitations of this study were discussed with suggestions for future studies.

• Proceedings of the Korean Society of Crop Science Conference
• /
• 2021.10a
• /
• pp.227-227
• /
• 2021

• Proceedings of the Korean Society of Crop Science Conference
• /
• 2021.10a
• /
• pp.222-222
• /
• 2021

• Proceedings of the Korean Society of Crop Science Conference
• /
• 2021.04a
• /
• pp.94-94
• /
• 2021

• Proceedings of the Korean Society of Crop Science Conference
• /
• 2021.04a
• /
• pp.90-90
• /
• 2021

• Proceedings of the Korean Society of Life Science Conference
• /
• 2008.10a
• /
• pp.22.2-22.2
• /
• 2008

• Steel and Composite Structures
• /
• v.46 no.3
• /
• pp.435-449
• /
• 2023

Time domain method and frequency domain method are commonly used in the current fatigue life calculation theory. The time domain method has complicated procedures and needs a large amount of calculation, while the frequency domain method has poor applicability to different materials and different spectrum, and improper selection of spectrum model will lead to large errors. Considering that artificial neural network has strong ability of nonlinear mapping and generalization, this paper applied this technique to random fatigue life prediction, and the effect of average stress was taken into account, thereby achieving more accurate prediction result of random fatigue life.

• Journal of People, Plants, and Environment
• /
• v.24 no.1
• /
• pp.63-73
• /
• 2021

Background and objective: This study was conducted to investigate the effects and preferences of horticultural therapy programs for stress relief according to MBTI personality types (Judging and Perceiving types) of female undergraduate students. Methods: The participants were divided into 15 Judging and 15 Perceiving types based on lifestyle preferences of the MBTI personality test, and a total of 30 participants participated in the horticultural therapy programs for 6 sessions. Results: Both Judging and Perceiving types showed a significant decrease in stress after participating in the horticultural therapy programs. Among the 8 life stress subfactors, Judging types showed significant stress relieving effects in 5 subfactors (relationship with the opposite sex, relationship with family, economic problems, future problems, value problems), while Perceiving types showed stress relieving effects in only 3 subfactors (relationship with family, economic problems, future problems). However, the changes in stress relief of 8 subfactors were not significantly different between the two personality types. The most preferred program for the Judging types was 'Making a flower basket', while the most preferred ones for the Perceiving types were 'Planting monstera', and 'Making preserved lemons with marigold', suggesting that the preferences varied depending on personality types. Conclusion: Therefore, it is necessary to develop suitable horticultural therapy programs for different subjects based on their personality types to enhance the effect of the programs on the subjects.

• Transactions of the Korean Society of Mechanical Engineers A
• /
• v.22 no.2
• /
• pp.258-267
• /
• 1998

This study reviews the influence function method(IFM) for calculating stress intensity factors (SIFs, K) and modifies it to apply for the estimating the residual fatigue life for the cracked components under complex stress fields. An IFM has been developed to analyze SIFs for surface cracks which are subjectedto nonuniformly distributed stresses. Through elastic superposition, the influence function method properly accounts for redistribution of stress as the crack grows through the component. This influence function is unique to the given geometry and independent of the loading. Some examples have been provided to show the effectiveness of the IFM including the distributions of K in a residual stress field. The significant effect of residual stress upon fatigue crack growth in a welded component has been demonstrated with the IFM.

• Journal of Korea Entertainment Industry Association
• /
• v.14 no.4
• /
• pp.421-430
• /
• 2020

This study was conducted to examine the correlations between life stress, body image, happiness, and health promoting behaviors, and to identify the influencing factors on health promoting behaviors of nursing students. Data were collected from 277 nursing students from April 16 to May 4, 2018. Data were analyzed using descriptive statistics, t-test, one-way ANOVA, Pearson's correlation coefficients, and stepwise multiple regression. Life stress, body image, happiness, and health promoting behaviors according to the general characteristics commonly showed significant differences in major satisfaction and school satisfaction. Health promoting behaviors showed positive correlations with body image and happiness, but a negative correlation with life stress. Happiness, body image, life stress, gender, and major satisfaction, which accounted for 46% of the variance, were significant predictors influencing health promoting behaviors in nursing students. Based on the results of this study, it is necessary to develop a variety of programs to lower life stress and increase body image and happiness in order to improve health promoting behaviors of nursing students.