• 대한산업공학회지
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• 제20권1호
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• pp.39-51
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• 1994

Almost all accelerated life tests assume that no basic failure mechanism changes within the test stresses. But accelerated life test, considering failure mechanism changes, is needed since failure mechanism changes when accelerating beyond the used stress. This paper studies the analysis when the failure mechanism changes within the test stresses. The piecewise linear regression, which the join point of two lines is estimated, is applied In particular, two accelerated life tests, with and without a change in failure mechanism are examined.

• 대한가정학회지
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• 제36권12호
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• pp.161-173
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• 1998

The purpose of this study was to investigated on the degree of interest of manners education before and attitude and behavior change satisfaction of post-manners education for Women's University Students. The data for this study were collected from 518 subjects, who were Sookmyng Women's University Students in November, 1996. The subjects were analyzed by Cronbach's α, Frequency, Percentage, Mean, Anova, Factor analysis, Multiple Regression, and Path Analysis. The results were as follows; 1) The general tendency of students' degree of interest of manners education before for Women's University Students was high. 2) Attitude and behavioral change satisfaction of post-manners education was some high. Among the variables, individual life manners, family relations manners, job manner, and wedding ceremony were some high then the other manners areas. 3) The variables of the positive influences for students attitude and behavioral change satisfaction of post-manners education were degree of interest of manners education before, mother's age, grade, major, university life-satisfaction, and mother's job, negative influence variables was family life-satisfaction. 4) The intermediated variable of attitude and behavioral change satisfaction of post-manners education was degree of interest of manners education before and university life-satisfaction. We hope this study to be used as basic data for developing manners education model in university. We also expect further studies on university manners education with precise scale and sampling.

• 지역사회간호학회지
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• 제20권2호
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• pp.169-178
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• 2009

Purpose: This study was conducted to find perceived health status, ADL, depression, and life satisfaction among the rural elderly and to explore differences according to gender and the stage of exercise change. Methods: This is an exploratory survey study. The subjects were 365 elders consisting of 140 men (38.4%) and 225 women (61.6%) in a rural area in Korea. Data were collected from December, 2006 to January, 2007 using a structured questionnaire. The data were analyzed by Pearson's correlation, t-test, ANOVA, and Scheffe's test using the SPSS/WIN 10.0. Results: The mean scores of perceived health status and ADL were lower and depression was higher in women than in men. There were statistically significant differences in perceived health status according to the stage of exercise change. Also there were significant differences in the scores of ADL, depression, and life satisfaction according to the stage of exercise change. Conclusion: The tailored exercise seems to decrease depression while promoting physical health status and life satisfaction among the rural elderly. We suggest considering the client's intention and motivation when developing exercise programs.

• 한방안이비인후피부과학회지
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• 제22권1호
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• pp.157-171
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• 2009

Objective : The face is very important for human communication. So facial palsy patients experience not only physical disturbances but also serious emotional stress. Therefore the focus of treatment must be to not only aid the recovery of objective symptoms but also the improvement of subjective quality of life. However there has not been enough Oriental Medical study in this field until now. Thus this study was begun to suggest a useful index for the treatment of facial palsy. Methods : Grade of paralysis, sequelas, and quality of life were used for evaluation. To evaluate Grade of paralysis, House-Brackman Grade was used as the Gross scale and Kim's Grade was used as the Regional scale. Sequelas were evaluated by muscle contraction, synkinesis, NA, and grade of philtrum tilt. Quality of life was evaluated by SF-36v2, Facial Disability Index, and Vas. Results & Conclusion : 1. The change of grade of paralysis between the early and the present time reveals remarkable improvement statistically. 2. There was a remarkable improvement in all parts of quality of life except several areas of SF-36(RP, RE, MH, VT) 3. In only PF(Physical Function) of FDI, quality of life increased remarkably according to the improvement of grade of paralysis. 4. There is the positive relationship among Kim's grade, HB grade and Synkinesis 2. 5. Synkinesis among sequelas has the greatest effect on quality of life. And muscle contraction, change of NA, and grade of philtrum tilt also affect quality to some extent. 6. There was no remarkable relationship between the period of illness and change of quality of life. 7. Change of NA is shown after 3 months of illness and synkinesis becomes worse after 6 months of illness.

• 기본간호학회지
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• 제14권2호
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• pp.230-238
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• 2007

Purpose: The Transtheoretical Model (TTM) is a theoretical construct explaining stages of health behavior change. The purpose of this study was to describe and analyze the stages of health behavior change and health related quality of life (HRQL), Method: A descriptive survey design was utilized, and, using a questionnaire, which included a series of 5 questions designed to assess stages of health behavior change and HRQL instrument, data were collected from 292 adults. Means, standard deviation, t-test, ANOVA, and SNK test were used to analyze the collected data. Results: Health risk behaviors were lack of stress management(44%), alcohol use (42.5%), poor nutrition (37%), smoking (36.3%), a lack of spirituality (28.8%), poor communication skills (21.9%), Lack of safety(21.6%), lack of fittness (20.1%), violent behavior(12.3%), and drug use(6.8%). There was a significant difference in HRQL according to stage of health behavior change (P=0.001). Conclusion: The results of the study identified the need for individualized nursing interventions that based on the stage of health behavior change. Nursing interventions that focus on the stage of health behavior change would be effective for health promotion for Koreans.

• Computers and Concrete
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• 제21권4호
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• pp.419-429
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• 2018

Climate changes, such as increasing of $CO_2$ concentration and global warming, will impact on the carbonation service life of concrete structures. Moreover, slag blended concrete has a lower carbonation resistance than control concrete. This study presents a probabilistic numerical procedure for evaluating the impact of climate change on carbonation service life of slag blended concrete. This numerical procedure considers both corrosion initiation period and corrosion propagation period. First, in corrosion initiation period, by using an integrated hydration-carbonation model, the amount of carbonatable substances, porosity, and carbonation depth are calculated. The probability of corrosion initiation is determined through Monte Carlo method. Second, in corrosion propagation period, a probabilistic model is proposed to calculate the critical corrosion degree at surface cracking, the probability of surface cracking, and service life. Third, based on the service life in corrosion initiation period and corrosion propagation period, the whole service life is calculated. The analysis shows that for concrete structures with 50 years service life, after considering climate changes, the service life reduces about 7%.

• 한국농촌건축학회논문집
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• 제20권2호
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• pp.49-56
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• 2018

The vernacular houses with 田-shaped floor plan at Gangreung have been played important roles in tracing the vernacular living cultures including housing life. But due to the adoption of convenient facilities in vernacular housing lives caused by modernization and urbanization, many changes and transformations have happened at residential space of vernacular houses. This thesis targets to extract basic data to prepare and prevent various problems in process of renovation, extension and function change as installing housing life facilities, and to identify the changes and transformations of them to prepare the proper balances between their original form preservation and residents' convenience living. The results are as follows. The inner wall removal of rooms, the fuel change of cooking and heating, the leveling change of kitchen floor made possible the sedentary lifestyles. And its residential rooms were transformed from two row to one row by inner wall removal, the fuel heating change, the heating method change and the heat insulating materials. The residential extension materials were changed from the traditional materials such as soil, wood, etc to the modern materials such as cement block or brick, sandwich panel, etc. And the modern materials were used and attached to widen residential spaces to the vernacular house because of the easiness of execution. So, it is necessary for 田-shaped floor plan vernacular house owners to distribute printed execution guide book to prevent and minimize the various problems to be shown by extension, renovation and function change.

• Journal of Ecology and Environment
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• 제29권4호
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• pp.405-410
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• 2006

Landscape changes for 20 years between 1981 and 2001 in the Wangsuk stream basin located on the central Korea were investigated on the basis of physiognomic vegetation map made from the aerial photograph interpretation and field check. Changes of landscape structure were noticeable in agricultural field and forest landscape elements. Changes in the agricultural fields due to transformation of agricultural pattern into the institutional agriculture dominated landscape change, although urbanization also contributed to such change. The former change due to change of food production structure originated from socio-economic development during this period and the latter to the overpopulation of Seoul. As energy sources for heating and cooking, fertilizer, and fodder for livestock transform from plant materials to fossil fuel, manufactured one, and grain, succession of forest escaped from direct human disturbance dominated change of landscape structure in forested land. Differently from the positive landscape change in the upper area, change in the lower area deteriorated landscape quality by increasing artificial land. It was estimated that such landscape deterioration in the Wangsuk stream basin would influence water quality of the stream. In order to realize sustainable land-use against such environmental degradation, systematic environmental management based on landscape ecological perspective such as "an eco-plan for creating riparian vegetation belt," which is under preparation by Ministry of Environment, was recommended.

• 대한한의학원전학회지
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• 제24권4호
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• pp.175-193
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• 2011

In present-day Korea, a climatic change is causing various changes to the life of people and their body. The climate is more and more warm, so the internal environment of people's body is exchanging to warm. The climatic change's range is big and the speed is fast. So the harmony of human body is being destroyed and the human body's adaptation ability is becoming low. At this condition, diseases more frequently occur. So doctor must expect the occur of diseases and practice early treatment. And in present-day Korea, a life environmental change is being advanced. The life environmental change is causing big changes to the people's body and having influences to the occur of diseases. To this problem, doctor must expect and practice early treatment. This thesis would like to interpret about present-day Korea's climatic changes and life environmental changes in Korean Medicine point of view, and try to present the method of Korean Medicine early treatment. And comment on present-day Korea's early treatment method especially on health supplement or functional food and vaccination.

• 한국보육지원학회지
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• 제12권5호
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• pp.137-155
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• 2016

The purpose of the present study was to investigate the longitudinal relationship between main caregivers' life satisfaction and depression and self-esteem of school-aged children, and to provide plans for improving the lives of the school-aged children. For this purpose, we analyzed the three years'longitudinal panel data (2011-2013) of the Korean Children and Youth Panel Survey (KCYPS) including 2,342 first grade elementary school children employing the latent growth model using SPSS 18.0 and AMOS 22.0. Analysis results were as follows. First, main caregivers'life satisfaction and school-aged children's depression increased as time passes and linear change model was selected. Second, the initial status of main caregivers'life satisfaction had effects on the initial status of their children's depression, but initial status and rates of change of life satisfaction did not have an influence on the rates of change of the depression. However, it was found that the main caregivers' life satisfaction had effects on the school-aged children's self-esteem and it worked as a mediator on the longitudinal relationship between the main caregivers'life satisfaction and the children's depression. School-aged children's self-esteem was a partial mediator on the initial status of their depression and full mediator on these rates of change. These findings suggests that programs improving school-aged children's self-esteem should be developed.