• 한국지반공학회:학술대회논문집
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• 한국지반공학회 2005년도 춘계 학술발표회 논문집
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• pp.1039-1046
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• 2005

After clay particles have been sediment isotropically, the clay deposits have been consolidated under $K_0$-stress system. Therefore, in order to predict the behavior in-situ of normally consolidated clays, the laboratory test should be enforced under $K_0$-stress system and should obtain the characteristics of normally consolidated clays. And relationship of stress-strain on clay is effected on not only method of consolidation but also characteristic of visco-plastic behavior. Saturated clay is effected more this trend. So, rate of strain is considered to understand exact stress-strain relationship. In this study, the series of undrained triaxial compression tests were preformed on remolded specimens which was made by slurry of clay, consolidated under $K_0$-stress systems. And the undrained triaxial compression test were preformed to examine behavior of stress-strain relationship due to rate of shear strain relationship due to rate of shear strain.

• 한국의류학회지
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• 제13권4호
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• pp.339-346
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• 1989

The Purpose of this study were; (1) to investigate the relationship between Masculine Gender Role Stress and four aspects of Clothing behavior, (2) to ascertain whether differences exist among demographic variables on Masculine Gender Role Stress and Clothing behavior, (3) to investigate the relationship among the four aspects of Clothing behavior. Masculine Gender Role Stress was assessed by Eisler & Skidmore's Scale. Four aspects of Clothing (Conformity, Satisfaction, Exhibition, Brand Orientation) were assessed by Chung's, Lim's & Lee's, Shim's and Kim's questionnaires. The samples were consisted of 236 male students in Seoul. The statistical analyses of the obtained data included calculation of the Mean, S.D., Correlation, ANOVA and Regression. The Results were as follows; (1) Masculine Gender Role Stress was positively related to conformity, exhibition of Clothing and negatively related to satisfaction of Clothing. (2) There were significant differences among three groups of Major on Clothing behavior. (3) There were significant differences among three groups of locations of high school on Masculine Gender Role Stress. (4) There were significant relationships among each Clothing variables. Positive relationship were found between Exhibition and Brand Orientation of Clothing. Negative relationships existed between (i) Conformity and Satisfaction, Exhibition, Brand Orientation of Clothing, (ii) Satisfaction and Exhibition, Brand Orientation of Clothing.

• Child Health Nursing Research
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• 제11권1호
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• pp.83-89
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• 2005

Purpose: The purpose of this study was to investigate the stress level, coping behaviors and health problems of elementary school children and to compare the level of these three variables according to size of city of residence and to identify the relationship among the three variables. Method: Data were collected by questionnaire from 465 5th and 6th grade elementary school children living in Daegu and North Kyungsang Province. Data were collected between December 1 and 20, 2003 and analyzed using the SPSS program with means, standard deviation, t-test, and Pearson's correlation coefficients. Results: The stress level was significantly higher in children who lived in the big city. The coping behavior score was not significantly different according to size of city, nor was there a difference in the health problems according to size of city. There was a positive correlation among stress level, coping behaviors and health problems. Conclusion: In general, the stress level was significantly different but coping behavior scores and health problem scores were not significantly different according to size of city. Also the elementary school children used more passive coping behavior than active coping behavior. Therefore, strategies to develop active coping behaviors for these children are needed.

• 한국의류학회지
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• 제40권4호
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• pp.615-630
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• 2016

This study investigates the mediate effects of obesity stress on the relationship between the narcissism and clothing behavior related appearance. The subjects for the study were 322 women aged 20's-30's in an online survey. Data analyses were conducted with SPSS 18.0 program. The study results are as follows. First, clothing behavior and obesity stress of plus size consumers are more affected by perceived obesity than BMI, and covert narcissistic tendency is stronger than overt narcissistic tendency. Second, the factor analysis results on narcissistic tendency indicated 'self-enhancement narcissism', 'self-initiative narcissism', and 'other-dependent narcissism'. Third, 'self-enhancement narcissism' more influenced 'fashion orientation' versus the greater influence of 'self-initiative narcissism' and 'other-dependent narcissism' on 'depending on clothing'. Fourth, the narcissistic tendency perceived by plus size consumers affect 'depending on clothing' and 'fashion orientation' with obesity stress as the mediator. 'Self-enhancement narcissism' and 'self-initiative narcissism' are partially mediated by obesity stress, and 'other-dependent narcissism' are completely mediated and affect appearance management behavior.

• 한국해양공학회지
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• 제7권1호
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• pp.124-132
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• 1993

In order to examine the effect of anisotropy and stress ratio on fatigue crack propagation rate and opening-closing behavior and also arrest behavior by single tension peak overload, the fatigue tests of constant amplitude atress and single tension peak overload adding to cycle of constant amplitude were carried out in stress ratio of -0.4, -0.2, and 0.4 with materials of T-L and L-T directions in 2024-T3 aluminum alloy plate. Crack opening-closing begavior were measured by the compliance method using COD gage and strain gage. In case of the crack opening-closing behavior was measured by strain gage, the effect of stress ratio is unchangeable. But in the case of COD gage, that is remarkably decreased. Fictitious effective stress intensity factor(U sub(f)) and effective stress intensity factor ratio(U) in L-T direction was higher than those in T-L direction and also threshold arrest overload ratio incrased as stress ratio decreased and that of T-L direction was higher than that in L-T direction.

• Child Health Nursing Research
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• 제28권1호
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• pp.82-90
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• 2022

Purpose: The aim of this study was to examine the relationships among parenting role sharing, parenting stress, happiness, and parenting behavior of mothers with 6-year-old children. Methods: This study used data from the seventh Panel Study of Korean Children, which began collecting longitudinal data on a sample of newborn households nationwide in 2008 and will continue yearly until 2027. The participants were 1,560 mothers of children aged 6 years. We conducted statistical analyses using descriptive statistics, the t-test, analysis of variance, Pearson correlation coefficients, and stepwise multiple regression. Results: The mean age of the mothers was 36.8±3.7 years. The mothers' perceived parenting role sharing (r=.07, p=.007), parenting stress (r=-.54, p<.001), and happiness (r=.38, p<.001) were significantly correlated with warm parenting behavior. Stepwise multiple regression analysis revealed that parenting stress (β=-.47, p<.001), happiness (β=.15, p<.001), and parenting role sharing (β=.11, p<.001) were significant predictors for warm parenting behavior by mothers. Conclusion: It is essential to reduce mothers' stress and increase their positive emotions (happiness). Fathers should actively share parenting roles in raising children to enhance mothers' warm parenting behavior.

• 한국학교보건학회지
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• 제20권2호
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• pp.81-89
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• 2007

Purpose: The Purpose of this study was to compare stress level and stress coping behavior of elementary students in southern and northern area of Han river. Methods: This was a descriptive comparative survey using a convenience sample of 403 5^th-and 6^th-grade students. The data were analyzed by X²-test, t-test, ANOVA and multiple regression using SPSS 11.5 statistical program. Results: The level of stress and stress coping behavior according to northern and southern elementary students of seoul, Stress levels tended to increase more significantly with less satisfied life, more study time, in female students than male students. in northern students, and with more individual factors. With regard to stress coping behaviors. students with higher life-satisfaction tended to use active coping, and female students used more positive and mystic coping than negative coping. Conclusion: Students living in northern area, and more female students than male students showed a high level of stress, and students with a higher stress level were better able to cope with stress. Thus, it could be concluded that programs to lower stress levels are needed more than stress intervention programs.

• 한국생활과학회지
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• 제18권1호
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• pp.55-64
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• 2009

The purpose of this study is to investigate the relative effects of father's parenting behavior, parenting stress and knowledge on bringing up children on his parenting self-efficacy. Two hundred and seventy fathers with children under the age of seven participated in this study. Fathers showed a lower level of parenting stress and a higher level of knowledge on child rearing. A higher level of parenting self-efficacy was observed in fathers who have good jobs. The factors of father's parenting behavior, parenting stress and knowledge on rearing children were significant variables in predicting his parenting self-efficacy. A factor of knowledge on child rearing was the best predictor of father's parenting self-efficacy.

• Journal of Mechanical Science and Technology
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• 제18권11호
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• pp.1989-1995
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• 2004

Finite element analysis(FEA) is the most popular numerical method to simulate plasticity-induced fatigue crack closure and can predict fatigue crack closure behavior. Finite element analysis under plane stress state using 4-node isoparametric elements is performed to investigate the detailed closure behavior of fatigue cracks and the numerical results are compared with experimental results. The mesh of constant size elements on the crack surface can not correctly predict the opening level for fatigue crack as shown in the previous works. The crack opening behavior for the size mesh with a linear change shows almost flat stress level after a crack tip has passed by the monotonic plastic zone. The prediction of crack opening level presents a good agreement with published experimental data regardless of stress ratios, which are using the mesh of the elements that are in proportion to the reversed plastic zone size considering the opening stress intensity factors. Numerical interpolation results of finite element analysis can precisely predict the crack opening level. This method shows a good agreement with the experimental data regardless of the stress ratios and kinds of materials.

• 대한안전경영과학회지
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• 제18권1호
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• pp.89-97
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• 2016

This current research investigated whether job stress mediates the relationship between physical environment and safety behavior of members in organization. Furthermore, we hypothesized that safety climate functions as moderator between physical environment-job stress link. In order to examine the hypotheses, 870 employees in various fields of companies were sampled. Using structural equation modeling(SEM), we conducted moderated mediation model analysis which cab elaborately test the significance of our hypotheses. The results showed that job stress mediated the link between physical environment and safety behavior of members. Moreover, the relationship between physical environment and job stress was moderated by safety climate. The implications and limitations of our study and suggestions for future research were discussed.