• 종양간호연구
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• 제2권1호
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• pp.5-16
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• 2002

Purpose: This study was to develop a stress-adaptation model for family caregivers of cancer patients that could provide the basis of planning nursing intervention. Method: A hypothetical model was developed using the family adaptation model proposed by Haley et al. (1987). In the literature, the stressor was identified as patient's characteristics, caregiver's characteristics, duration of illness, and family life events. It affected stress appraisal, family resources, family coping and finally caregiver's adaptation. In this model, 18 paths were constructed. Data were collected from 241 caregivers, whose family members were in treatment between June and August 2000, at 3 university hospitals and were analyzed by SPSS and LISREL programs. Results: 1) The overall fitness indices of the hypothetical model were x 2=267.78 (P= .0), GFI= .92, AGFI= .87, NFI= .93, NNFI= .93, PNFI= .64, PGFI= .55, and RMR= .43. Ten of the eighteen paths proved to be significant. 2) To improve the model fitness, the hypothetical model was modified considering modification indices and the paths proved not significant. Final model excluded 3 paths demonstrated to be improved by x2=161.96 (P= .00), GFI= .95, AGFI= .91, NFI= .96, NNFI= .96, and RMR= .23. Twelve of fifteen paths proved to be significant. 3) Stress appraisal was influenced by disease related characteristics and duration of illness and was explained 22% of the variance. Family resources were influenced by stress appraisal and was explained 57% of variance. Family coping was influenced by disease related characteristics, caregiver's characteristics, duration of illness, family life event, and stress appraisal and was explained 57% of variance. Family caregiver adaptation was influenced by disease related characteristics, caregiver's characteristics, stress appraisal, and family coping and was explained 31% of variance. Twelve of fifteen paths were significant. Conclusion: Based on this study, to help family caregivers to adapt, individual intervention is necessary with consideration of disease related and caregiver's characteristics and duration of illness. The intervention should include efforts to raise the family resources and to identify positively the stress they encounter, and there is a need to establish an adaptation model that considers emotional aspects of family caregivers. Since there is a difference in emotional status depending on the disease stage, a study needs to be done to analyze the differences among the disease stages (diagnosis, treatment, recurrence, and terminal stages).

• Corrosion Science and Technology
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• 제19권5호
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• pp.259-264
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• 2020

Many studies have been conducted to improve the corrosion resistance and durability of various aluminum alloys through the anodizing technique. It is already used as a unique technique for enhancing the properties of aluminum alloys in various industries. This paper investigated the electrochemical corrosion and stress corrosion cracking characteristics of anodized aluminum 5083-H321 alloy in natural seawater. The corrosion characteristics were assessed by the electrochemical technique and potentiodynamic polarization test. The stress corrosion cracking characteristic was evaluated with a slow strain rate tensile test under 0.005 mm/min rate, which showed that the hard anodizing film had a thickness of about 16.8 ㎛. Although no significant characteristics of stress corrosion cracking were observed in the slow strain rate test, the anodized specimen presented excellent corrosion resistance. The corrosion current density was measured to be approximately 4.2 times lower than that of the base material, and no surface damage was observed in the anodic polarization test.

• 한국가스학회지
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• 제16권5호
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• pp.52-57
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• 2012

본 연구에서는 유한요소해석법을 사용하여 다접오링의 밀봉특성에 관련된 변형률, 응력, 접촉법선응력을 해석하였다. 밀봉특성에 관한 FEM 해석결과에 의하면, 다접오링에 작용하는 최대 변형률, 최대압축응력, 최대접촉 법선응력은 기존의 오링에 비해 약 1.7배나 더 높게 나타났다. 이것은 다접오링의 절단면에 U홈을 형성하였기 때문이고, 다접오링은 고압가스 용기, 밸브, 가스기기의 밀봉을 유지하는데 매우 유용할 것으로 판단된다. 그리고, 다접오링에서 가스압력을 높여도 압출파손 현상이 발생되지 않았는데, 이것은 U홈이 있기 때문인 것으로 판단된다. 따라서, 다접오링은 기존의 오링에 비해 밀봉수명을 길게 연장시킬 수 있다.

• Journal of Welding and Joining
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• 제19권3호
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• pp.285-291
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• 2001

Large steel water pipes are joined prevalently by the bell end method, and are welded both at inside and outside of lapped parts. In practice, welded joints of water pipes are very critical, because in most cases failure of pipes causing leakage occurs at the welded joint. Therefore some methods have been developed to ensure the soundness of welded joints of water pipes, like leakage tests and nondestructive tests (NDTs). But one of the major characteristics that affects the soundness of welded Joints is the stress distribution caused by welding and external forces. Some studies have been carried out on the residual stress of steel water popes, but complex stress distributions by welding and external forces are rarely studied. In this study, temperature and stress distributions in steel water pipes produced by welding are predicted by a three-dimensional finite element method(FEM). Also, stress values are measured from real steel water pipes by the hole-drilling methods, and compared with predicted ones. The influence of some typical post weld treatments on residual stress distribution was also investigated by residual stress measurements.

• 영재교육연구
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• 제19권3호
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• pp.433-456
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• 2009

본 연구는 일반아동과 영재아동을 대상으로 부모의 양육특성(양육태도, 양육스트레스, 배우자양육협조 배우자훈육일치)을 비교 분석하였다. 연구 결과 첫째, 영재아동과 일반아동 집단에서 양육태도, 배우자양육협조, 배우자훈육일치의 차이가 있었는데, 영재아동의 부모가 더욱 긍정적인 것으로 나타났다. 둘째, 영재아동과 일반아동 각각의 집단에서 양육태도, 양육스트레스, 배우자양육협조, 배우자훈육일치 간에 유의한 상관이 있었다. 특히 양육스트레스는 배우자양육협조, 배우자훈육일치와 유의한 부적인 상관이 있었다. 셋째, 각 집단에서 양육태도에 미치는 양육특성 변수들의 영향력을 살펴본 결과 영재아동집단에서는 배우자훈육일치가, 일반아동집단에서는 양육스트레스, 배우자훈육일치가 양육태도에 유의한 영향력이 있는 것으로 나타났다.

• 보건교육건강증진학회지
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• 제22권2호
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• pp.111-124
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• 2005

Objectives: The purpose of this study is to evaluate the impact of psycho-social factors on smoking especially the impact of a social support and stress on smoking among boy's high school students. Methods: This study was conducted by administering a questionnaire to 442 boys' high school students living in Deajeon, Korea. This data were analyzed with the SPSS statistical package using t-test and logistic regression. Major findings of this study are as follows: Results: 1. Analysis of the relationship of smoking, stress and social support: The relationship between stress and smoking and between friend's support and smoking had a positive correlation. But the relationship between parents' support and smoking and between teacher's support and smoking had a negative correlation. 2. Multiple logistic analysis of the impact of stress, social support and general characteristics on smoking: The relationship between stress and smoking had a positive correlation as social support and general characteristics were controlled. In contrast, the relationship between social support -parents', friend's, teacher's support- and smoking had no significant correlations as stress and general characteristics were controlled. The risk factors of smoking of boy's high school students were smoking friends, drinking, a type of school, pocket money per month, and stress. And the most powerful predictor of smoking was smoking friends(OR=12.35). Conclusions: The results showed that the variables affecting mainly on smoking were the personal background -smoking friends, drinking, a type of school, pocket money per month- and stress. Therefore, these findings give useful information for constructing a program against smoking or educating about smoking.

• 산업경영시스템학회지
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• 제31권4호
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• pp.41-48
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• 2008

The purpose of this study was to investigate the job stress factors that were related to the general characteristics, work characteristics, and health characteristics of the workers at distribution industry. The survey of job stress measurement scale for Korean employee which was developed by KOSHA and OSHRI in 2003 was used for this study. Three hundred and fifty workers at distribution industry participated in this study, and among them 326 responses were analyzed for this study due to the unreliability and insincerity of responses. Eight job stress factors like physical environment, self-control for the job, job unsecure, organization system, workplace culture, compensation for the job, relationship to the superior, and job requirement were analyzed. The results showed that the stress because of self control for the job was relatively higher than that of other industry workers. However, the stress because of physical environment, job requirement, job unsecure, organization system and compensation for the job was relatively lower than that of other industry workers. The female workers felt more stress than male workers in compensation for the job and workplace culture factors at distribution industry. The delivery and carrying job workers were more stressful than those of other jobs at distribution industry because of physical environments and self-control for the job. The non-regular job workers were more stressful than regular job workers in many stress factors like self-control for the job, job unsecure, organization system and compensation for the job.

• 한국농공학회:학술대회논문집
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• 한국농공학회 1998년도 학술발표회 발표논문집
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• pp.382-387
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• 1998

Triaxial compression tests were run to study on the undrained strength characteristics of fiber mixed kaolin clay(Hadong). The influence of various test parameters such as amount and aspect ratio(ratio of length to diameter) of fiber, confining stress was also investigated. Test results showed that the increase in aspect ratio was increased in deviator stress at failure, but no effect on pore water pressure at failure. Deviator stress at failure was also increased at 0.5％ mixing ratio(weight fraction of fiber to that of soil solid) of fiber but it was, thereafter, decreased and wits reached to constant after 2％ mixing ratio. On the contrary, Pore water pressure at failure was increased as mixing ratio of fiber was greater than 1%. Deviator stress and pore water pressure of both clay and fiber mixed clay(FMC) at failure were increased as confining stress was increased. Deviator stress of FMC at failure was about 10％ larger than that of clay, but pore water pressure of FMC at failure was almost similar to that of clay.

• 한국치위생학회지
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• 제15권5호
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• pp.849-856
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• 2015

Objectives: The purpose of the study is to investigate the influence of social characteristics and self leadership on stress coping method in the dental hygiene students. Methods: A self-reported questionnaire was completed by 436 dental hygiene students in J area from November 10 to December 10, 2013. The questionnaire consisted ofsocial characteristics of the subjects, self leadership, and stress coping method. The reliability was evaluated by Cronbach alpha. Data were analyzed by frequency, one-way ANOVA, multiple regression analysis using the SPSS 12.0 statistical package program. The self leadership was developed by Mans and adapted and modified by Kim and Park. The leadership included 18 questions of self expectation, rehearsal, goal setting, self reward, self criticism, and constructive area. The stress coping method was developed by Folkman and Lazarus, and adapted and modified by Park. The stress coping method included 24 questions of problem focused coping, seeking social support, emotion focused coping, and wishful thinking. Results: The best stress coping method was wishful thinking and the score was 2.81. The priority order of stress coping method included social support, problem focused coping, and emotion focused coping. The self-expectation, goal setting, self-criticism proved to be highly relevant factors. The explanation power of stress coping method was 29.1 percent. The self expectation, rehearsal, self reward, and self criticism were passive coping methods and the explanation power was 15.4 percent. Conclusions: The self leadership is the most important factor to fulfill the interpersonal relationship abilities, major satisfaction, and satisfaction with clinical practice. The self leadership leads to stress coping ability.

• 성인간호학회지
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• 제23권6호
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• pp.543-553
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• 2011

Purpose: This study was designed to explore the parental stress, behaviors and need for parental education of young women with breast cancer and how these variables are related to their children characteristics. Methods: The subjects were 110 young women with breast cancer who have a child. Data were collected using questionnaire of parenting stress, parental behaviors and need for parental education. Results: The subjects reported many unmet needs for parental education, and have the highest level of need for education related to breast cancer. Women with daughters have higher level of need for parental education compared to subjects with sons. There was a negative correlation between parenting stress and parental behaviors and between parenting stress and need of parental education. Conclusion: As these results, the development and application of parental education program for mothers with breast cancer in the future should be considered with the demographic characteristics, the social and cultural environment, parenting stress, and parental behaviors of parents and children.