• 한국생산제조학회지
• /
• 제7권5호
• /
• pp.46-52
• /
• 1998

In fracture problems, stress intensity factors obtained theoretically and experimentally have been effectively utilized in the analytical evolution of the cracks effect. The effect of surface crack of a cylindrical and a hollow cylindrical bar is investigated, as well as the effect of the thickness of a hollow cylindrical bar and inclined crack of a hollow cylinder subjected to torsion moment. In this study, stress intensity factor Km of mode III which expresses the stress state in the neighborhood of a crack tip is used. stress analysis was conducted on the inside of hollow cylinder inthe axial direction of three dimensional crack tip subjected to torsion moment by combining the caustics method and the stress freezing method.

• 대한가정학회지
• /
• 제37권6호
• /
• pp.59-76
• /
• 1999

This study was to investigate casual relation of psychological well-being and quality of life of married couples. For the data set 434 married couples living in Pusan, Korea were chosen. The data were analyzed using M, SD, t-test, Pearson's correlation, multiple regression, and path analysis. The findings of this study are as follows; First, marital satisfaction and the level of quality of life are higher for husbands than wives. Whereas psychological distress is higher for wives than husbands. Second, for husbands, husband's level of education, job satisfaction, husband's housework participation, and job stress have significant effect on marital satisfaction. For wives, wife's level of education, husband's housework participation, and husband's job stress have significant effect on marital satisfaction. Third, for husbands, job satisfaction and job stress have significant effect on psychological distress. For wives, husband's job stress have significant effect on psychological distress. Fourth, for husbands, job stress, marital satisfaction and psychological distress have significant direct effect on quality of life. Besides, husband's age, husband's level of education, job satisfaction, job stress, husband's housework participation, and marital satisfaction are indirectly associated with quality of life. For wives, marital satisfaction and psychological distress have significant direct effect on quality of life. Besides, wife's level of education, husband's job stress, husband's housework participation, and marital satisfaction are indirectly associated with quality of life.

• 대한용접접합학회:학술대회논문집
• /
• 대한용접접합학회 2003년도 추계학술발표대회 개요집
• /
• pp.216-218
• /
• 2003

Most of ferrous b.c.c weld materials may experience martensitic transformation during rapid cooling after welding. And it is well known that volume expansion due to phase transformation could influence in the case of welding of high tensile strength steels on the relaxation of welding residual stress. To apply this effect practically, it is a prerequisite to establish a numerical model which is able to estimate the effect of phase transformation on residual stress relaxation quantitatively. In this study, we investigated the effect of phase transformation on the relaxation of welding residual stress through experiment. And three-dimensional thermal elastic-plastic FEM analysis is conducted to compare the effect of phase transformation on the relaxation of welding residual stress in high strength steels(POSTEN60, POSTEN80) with analytical results which is not considering the effect of phase transformation on residual stress relaxation. According to the results, the extents of welding residual stress relaxation due to phase transformation in the case of welding of POSTEN60, POSTEN80 are 0.85 $\sigma$/$\sigma$$\sub$Y0/, 0.75$\sigma$/$\sigma$$\sub$Y0/, respectively.

• International Journal of Advanced Culture Technology
• /
• 제7권2호
• /
• pp.201-208
• /
• 2019

The purpose of this study was to investigate the effect of type of values on coping stress through communication ability. The data for the study were collected from February 1 to 15, 2019, and the participants were collected through online questionnaires in the twenties who voluntarily participated in the study. The final data used in this study were 324. The research method was cross - sectional questionnaire survey. The analysis was done using SPSS 18.0, descriptive statistics, Pearson correlation, multiple regression and median effect analysis. A total of 324 people participated in the study, 38% of men and 62% of women were female. The results of this study showed that the collectivism values were positively correlated with individualism values (r = .224, p<0.01), emotional stress coping style (r = .266, p <), And emotion - centered stress coping was correlated with problem - oriented stress coping (r = .369, p <0.01). Those who had a collectivist value had a significant influence on the type of problem - centered stress coping(${\beta}=.271$, p<0.01), and the communication ability showed a perfect mediating effect($R^2=.310$,${\beta}=.113$, p>0.05). According to the results of this study, stress coping in the twenties suggests a program that fosters individualized communication ability.

• 한국학교ㆍ지역보건교육학회지
• /
• 제23권2호
• /
• pp.13-24
• /
• 2022

Objectives: The purpose of this study was to examine the mediating effect of self-esteem on the relationship between academic stress and depression in foreign students in Korea. Methods: The subjects of this study were 343 foreign students enrolled in universities and graduate schools in Daegu and Gyeongbuk area, and data were collected by conducting a questionnaire survey using the internet. The collected data was analyzed using SPSS 23.0 and PROCESS macro Model No 4. Results: The results were as follows. First, academic stress of foreign students increased the level of depression statistically significantly. Second, academic stress significantly reduced the self-esteem of foreign students. Third, the self-esteem of foreign students partially mediated the effect of academic stress on depression (p<0.05). In other words, it suggests that academic stress lowered self-esteem, and that the lowered self-esteem had an effect on the increase in depression. Conclusions: These results suggest that an intervention program to reduce academic stress is needed as a countermeasure for the alleviation and prevention of depression in foreign students, and that strategies for improving self-esteem should be considered as important.

• 보건의료산업학회지
• /
• 제10권2호
• /
• pp.193-204
• /
• 2016

Objectives : The purpose of this study was to identify the mediation effect of a positive stress coping strategy between clinical practice stress and clinical practice satisfaction in nursing students. Methods : In this study, data was collected from 248 nursing students at K University in South Korea from October of 2015 to November of 2015. The collected data was analyzed using the SPSS 22.0 Statistics Program. Results : Clinical practice stress and a positive stress coping strategy were significant predictors of clinical practice satisfaction (${\beta}$=.442, p<.001). The explanatory power of the measure of clinical practice satisfaction was increased to 29.3% (p<.001) with solely clinical practice stress, and it reached 44.2% (p<.001) when a positive stress coping strategy was reflected. The results of this study confirmed that a positive stress coping strategy has a mediation effect on clinical practice stress and clinical practice satisfaction levels. Conclusions : It is necessary to develop a program to take advantage of positive stress coping skills so that nursing college students can smoothly overcome stress during their clinical training and thus improve their clinical practice experience.

• 한국콘텐츠학회논문지
• /
• 제20권11호
• /
• pp.569-580
• /
• 2020

본 연구 목적은 요양보호사의 긍정심리자본이 종사자 열의에 미치는 영향에서 직무 스트레스의 매개 영향을 실증적으로 분석하였다. 연구방법은 수도권 소재 노인요양시설에 근무하는 요양보호사를 대상으로 2018년 12월 10일부터 2019년 1월 11일까지 설문조사한 자료 383건을 AMOS 22.0으로 분석한 결과는 다음과 같다. 첫째, 긍정심리자본이 직무스트레스에 미치는 영향은 부적인 것으로 나타났다. 둘째, 긍정심리자본이 종사자 열의에 미치는 영향은 정적인 것으로 나타났다. 셋째, 직무스트레스가 종사자 열의에 미치는 영향은 부적인 것으로 나타났다. 넷째, 직무스트레스는 긍정심리자본과 종사자 열의 관계에서 부분 매개 효과가 있는 것으로 나타났다. 이는 요양보호사의 긍정심리자본은 직무스트레스에 부적인 영향을 미치며, 또한 직무 스트레스를 매개하여 종사자 열의에 정적인 매개효과가 있는 것을 의미한다.

• 치위생과학회지
• /
• 제12권2호
• /
• pp.181-188
• /
• 2012

치위생과 학생의 통제소재와 자기효능감이 스트레스에 미치는 영향을 규명하여 학생들의 학교생활지고와 학습지도에 필요한 기초자료를 제공하고자 2011년 3월 10일부터 3월 20일까지 경기도에 소재한 A여대의 치위생과 학생들을 대상으로 연구를 시행하여 다음과 같은 결론을 얻었다. 1. 통제소재는 평균 8.77로 학생들이 사용하는 통제소재는 내적통제에 가깝다고 할 수 있다. 또한 전체 자기효능감의 평균은 3.23, 일반적 자기효능감은 3.23, 사회적 자기효능감은 3.20으로 평균이상의 자기효능감을 가지고 있었다. 스트레스에서는 전체스트레스평균은 2.32, 교우문제스트레스는 2.05, 경제문제스트레스는 2.33, 진로문제스트레스는 2.29, 부모가족문제스트레스는 2.24, 학업문제스트레스는 2.95로 나타났다. 2. 스트레스는 통제소재와 전체 자기효능감과 부적상관을 보이는 것으로 나타났고 통제소재와 전체 자기효능감은 정적 상관이 있는 것으로 나타났다 (p<.001). 3. 통제소재와 자기효능감이 스트레스에 미치는 영향을 확인한 결과 자기효능감은 전반적인 스트레스에 부적으로 유의한 영향을 끼쳤지만(p<.001) 통제소재는 통계적으로 유의한 결과를 끼치지 않았다. 하위요인에서 자기효능감은 교우문제, 경제문제, 진로문제, 부모가족문제 스트레스에 부적으로 유의한 영향을 미쳤으나(p<.05, p<.001) 통제소재는 통계적으로 유의한 결과를 끼치지 않았으며 학업문제스트레스에는 자기효능감, 통제소재 모두 유의한 영향이 없었다. 4. 통제소재와 스트레스에서 자기효능감의 매개효과를 살펴보면 통제소재가 전체 자기효능감을 거쳐 스트레스로 가는 간접효과가 통계적으로 유의한 것으로 나타났다(p<.001). 결론적으로 자기효능감을 비롯한 치위생과 학생들의 스트레스를 완화시키는 요인들에 관한 관심과 방법의 모색이 필요하다.

• 한국방재학회:학술대회논문집
• /
• 한국방재학회 2007년도 정기총회 및 학술발표대회
• /
• pp.289-292
• /
• 2007

Stress concentration have a effect on commission of structures and sometimes it cause the fracture of structures. Stress concentration is appeared where have a sudden section change like pipe connections. So stress concentration is a potent influence at pipe connentions. This paper make a study of pipe connections to alleviate stress concentration, and propose the stress concentration alleviation method that will make better efficient pipe system and will have a good effect on economic, social aspect.

• 융합정보논문지
• /
• 제10권9호
• /
• pp.136-146
• /
• 2020

본 연구는 서울형 데이케어센터 요양보호사의 직무스트레스가 직무만족에 미치는 영향을 자아탄력성이 조절하는지 검증하고자 요양보호사의 직무스트레스가 직무만족에 미치는 영향을 확인하고, 요양보호사의 직무스트레스가 직무만족에 영향을 미치는 과정에서 자아탄력성의 조절효과를 확인하였다. 서울시 데이케어센터 28곳의 종사자 256명을 대상으로 직무스트레스, 직무만족, 자아탄력성의 연구조사를 실시하였으며, 요양보호사 138명을 중심으로 분석하였다. 자료분석은 SPSS 25.0 및 Hayes가 제시한 SPSS PROCESS Macro를 활용하였다. 연구결과 첫째, 요양보호사 직군이 타 직군보다 직무스트레스 높고 직무만족감이 상대적으로 낮았다. 둘째, 직무스트레스가 직무만족에 부적(-)영향을 확인하였다. 셋째, 자아탄력성이 직무스트레스와 직무만족 사이에서 정적(+) 조절효과를 확인했다.