Journal of the Korean Institute of Electrical and Electronic Material Engineers
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v.16
no.9
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pp.842-850
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2003
The suspension insulators are subjected to harsh environments in service for a long time. The long-term reliability of tile insulators is required for both mechanical and electrical performances. This study describes some basic performance tests and accelerated aging test by cool-heat cycling methods and thermal mechanical performance test methods on alumina porcelain insulators (new and aged) used for transmission line in KOREA. There was no fail in electrical and mechanical performance tests such as a high voltage strength, a flashover voltage, and an impact strength in all samples. But in the case of accelerating aging tests which have above 9$0^{\circ}C$ temperature gradient, fracture phenomena was happened by a thermal shock in tile aged sample(sample A) with low alumina porcelain body. It was indicated that sample A was more severely aged than other samples. According to results of HRB test and microstructural analysis, it was reasoned that insulator bodies with the matrix reinforced with alumina crystalline phase have advantages over the suppression of crack advance. And cool-heat aging and mechanical thermal ageing tests shows that a temperature gradient is more effective to accelerating than a cycling number.
It is estimated that the need to build health facilities for the elderly will grow in the near future as the Korean society is aging. Thus the study on the spatial composition of 22 facilities as well as on the cases of health facilities for the elderly in Japan, where public health and medicare for aged people are well taken care of, was conducted and the following are the results: 1. As of 2000, there was one facility for every 8,000 and 1,100 aged citizen under long-term care, and these facilities secured beds enough for $8\%$ of those who need long-term care. 2. The spatial composition was categorized into general living space, long-term care, management, provision, and home assistance, and housing was provided. Moreover, the space was divided according to their nature of use, the arrangement, the form of entrance into the building, moving line inside, the relationship with the health facilities and their characteristics are analyzed based on different users, managers, moving line including that of provision of food, the relationship between different spaces with different functions as well as on the relationship between locations of each space. 3. The total capacity, building area and actual area of the welfare facilities for the elderly are analyzed, and area per person, detailed area for each space, percentage of each living space for long-term care patients and characteristics of recuperation room are suggested.
Park, Sun-Joo;Kim, Do-Hyun;Lee, Kwan-Yong;Lee, Jae-Yong;Kim, Young Il;Bahng, Keuk-Young;Kim, Young-Joo
Transactions of the Society of Information Storage Systems
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v.11
no.2
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pp.31-35
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2015
The Blu-ray Disc Recordable-Triple Layer (BD-R TL) media is considered as one of strong candidates for archival application among optical media formats, due to its large capacity. However, the long-term stability and degradation aspect have not been fully understood yet for BD-R TL media. Thus, the BD-R TL media were recorded at full tracks and analyzed by the random-symbol error rate (R-SER) measurement at different recording layers and recording positions after the accelerated aging test to understand its long-term stability. Finally, the general degradation aspect of BD-R TL media was discussed to improve the long-term stability.
Kim, Ju-Yong;Park, Chul-Bae;Kwon, Tae-Ho;Jung, Yeon-Ha
Proceedings of the Korean Institute of IIIuminating and Electrical Installation Engineers Conference
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2007.05a
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pp.210-213
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2007
In this study accelerated aging test cycle and equipment was developed for aging test of polymer housed surge arresters under domestic weather condition In order to investigate aging characteristics of polymer surge arresters electrical and chemical analysis of the arresters which are used for accelerated aging test and outdoor exposure test were conducted. Through the analysis the capability of the proposed method was verified and characteristics data were presented for maintenance of domestic arresters. Based on these results long term reliability assessment method was proposed for polymer housed distribution surge arresters.
Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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2002.11a
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pp.480-483
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2002
This paper through shift norm of insulator and research by accident prevention countermeasure special skill authoritativeness verification of insulator and Long Term aging factor for power transmission analysis and evaluate and prove quality of insulator wish to. Assessment technique by aging of own porcelain insulator observes ageing factor for reciprocity comparison through several examinations. Through cool and heat accelerated Aging test, can measure the leakage current change amount that ensue to each Cycle. Can confirm own blazing fire factor as distribution freshness that ensue in HRB Test's hardness value.
NR composites with different curing systems were aged thermally at 60, 70, 80, and $90^{\circ}C$ for 2-185 days in a convection oven, and the changes in the crosslink density were investigated as a function of the accelerated thermal aging. The overall crosslink densities increased with increasing aging time irrespective of the aging temperatures and curing systems. The changes in crosslink density were enhanced by increasing the aging temperature. The degree of the increased crosslink density was in the following order: "the conventional cure system > the semi-EV system > the EV system". For short term thermal aging, the change in crosslink density with the aging time was complicated, particularly for low temperature aging. The activation energies of the change in crosslink density with thermal aging using the conventional and semi-EV cure systems increased and then remained relatively constant with increasing aging time, whereas that of the specimen with an EV cure system tended to increase linearly. The experimental results were explained by the dissociation of the existing polysulfidic linkages and the formation of new cross links through the crosslinking-related chemicals remaining in the sample.
Journal of Korean Academy of Nursing Administration
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v.4
no.2
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pp.351-361
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1998
The purpose of this study was to explore whether there is a point within the range of physical impairment after which the cost of home care exceeds the cost of nursing home care among the elderly who require long-term care. The provision of long-term care for the elderly is a major health policy issue, in part due to the aging of the American population and dramatic increase in health care costs. The framework for this study was guided by Pollak's(1973)model of costs of alternative care settings for the elderly. This study used a retrospective, descriptive correlational design. Physical impairment was measured by the modified Index of Activities of Daily Living(Katz et al. 1963). Cost of care was measured by the average cost per patient per day. The sample for this study included 67 patients receiving long-term care at home from the Long-term Home Health Care Programs (LTHHCPs) and 67 patients receiving long-term care in nursing homes. Data were collected on patient characteristics. including activities of daily living and cognitive impairment. and on the number of physician visits. emergency room visits. and hospitalization from the patient records. For each patient. Medicaid cost data for home care services/or nursing home services were collected from the financial department of each home care agency or nursing home. The living costs and informal care costs were estimated for home care patients. The results indicated that the home care sample and the nursing home sample were similar in terms of gender. ethnic background. and marital status. The elderly patients in the home care sample were: however. younger and less physically impaired than those in the nursing home sample. The hypotheses of this study were supported: For elderly persons with physical impairment scores below 12(possible range of 0 to 14), cost of care was lower in home care than in the nursing home care setting. However, for elderly persons with physical impairment scores above 12. the cost of care was higher in home care than in the nursing home care setting. Thus. in this sample for elderly patients with extreme physical impairment, the cost of home care exceeded the cost of nursing home care.
Objectives : To help develop strategies to cope with the changes arising from the rapid aging process by predicting the determining factors of intention to actual use of the charged long-term care services for elderly as perceived by the middle aged who play the major role of supports. Methods : Subjects were the parents (men 177, women 507) in their 40s of the students selected from a university of Busan city. A questionnaire survey was conducted for 4 weeks in October 2003 about the knowledge for long-term care service, the intention of actual use, and the preferences about the type of service suppliers. Data analysis was performed with frequency, chi-square test, and t-test using SPSS program (ver 10.0K), along with data mining using decision tree of Enterprise Miner V8.2 by SAS. Results : About half of the subjects (53.7%) had the actual experiences of elderly supports. Intentions to use the charged services were relatively high in home visiting nursing care service (40.1%) and long-term care facilities service (40.4%), and were influenced by previous knowledge about the services. The intentions were stronger in women, those with higher education, and those with greater income levels. Actual elderly supports were mostly (80%) done by women, and the perceived burdens for the supports were bigger in women and those of lower socioeconomic level. Desired charges were about 10,000 won for the bath service, 20,000 won for the rests services per day, and about 500,000 won for the long-term care facilities service per month. From the result of decision tree analysis, the job professionalism was the most important determining factor of intention to actual use of the services with validation as $63{\sim}71%$. Health and welfare mixed type facilities were preferred, and the most important consideration was the level of professionalism. Conclusions : Intention to actual use of the charged services was largely determined by the aspects of time and cost. Polices to increase the number of service suppliers and to decrease the burdens perceived by actual supporters were strongly recommended.
A new public insurance for long-term care was introduced in July 2008 to provide for the rising demand for long-term care as the population is aging rapidly. The demand for long-term care is expected to rise further because more and more elderly are living alone or in households with only other elderly, such as his/her spouse, without informal care of their adult children. Even when the elderly are living together with their adult children, daughters and daughters in law, once the main informal care-givers, are not available because they choose to become economically active and work more over time. Experiences of countries such as Japan and Germany with similar public long-term care insurance scheme highlight the importance of detailed analysis on the demand for long-term care for the financial stability of the insurance scheme. Countries which had underestimated the demand for long-term care at the time of adopting the scheme went through financial instability of insurance schemes. This study analyzes the determinants of the demand for long-term care using data from the second demonstration project (April 2006~April 2007) of the long-term care insurance scheme for the elderly in Korea. Taking full advantage of detailed data on the long-term care, this paper analyzes the eligibility for the long-term care insurance scheme and its use. According to study results, even when common diseases among the elderly such as cancer, diabetes, arthritis, dementia, hypertension, etc. are controlled together with other individual and socioeconomic factors, limitations the elderly are faced with in their twelve activities of daily living significantly affect the eligibility for the Korean Long-term Care Insurance Scheme. This means that limitations in daily living activities are more critical than common diseases among the elderly are to the eligibility for the Korean Long-term Care Insurance Scheme. Bathing and toileting problems have been found to be the most important factor affecting the eligibility for the insurance scheme, followed by eating, dressing and moving around inside the house. Moreover, the choices of whether to use long-term care and which to use between home care and institutional care are found to be significantly influenced by health status and various socioeconomic factors of the elderly. In particular, those with more limitations in daily living activities and the female elderly are more likely to use long-term care and institutional care rather than home care. As for home care users, those living alone or with adult children and those with monthly household income of more than 500,000 won are more likely to use home care. Most importantly, even when the monthly household income of the elderly is controlled, the elderly recipients of the National Basic Living Security, who are not charged for long-term care, are more likely to choose home care. This implies that price as well as income is a critical factor for the decision to use long-term care. Further study on the duration of long-term care use will surely enhance the long-term care policy, when panel data is available for simultaneous analysis of the likelihood of long-term care use and its use duration.
Japan has been prepared for aging society from 1970. In 1970, the percentage of distribution of population of 65 years old and over was 7.1%. It is similar to present percentile of the elderly in Korea. Therefore, it will be needed to study about home care and home visiting nursing in Japan at present. This study was aimed to prepare the fundamental documents for home care nursing in Korea and to know the background of new health care system of Long-term Care Insurance in Japan, by studying home care and home visiting nursing in Japan. With the continuing aging of the population, especially the increase in the number of latter stage elderly, it is predicted that there will be an increase in the number of the elderly who are bedridden and suffering senile dementia. To ensure that these people will be able to continue living in the communities and homes they are accustomed to, surrounded by their families and neighbors, Japan substantially improve and expand in-home services. There were also long-term effort to reach the level of services outlined in the Gold Plan and the New Gold Plan within the decade between FY 1991 and FY 1999 in the field of health care and welfare. Under this plan, the most noticeable change was occurred in home care, home was permitted as the field of care and visiting nursing was established in law. Through this 10- Year Strategy for Promotion of Health and Welfare Services for the Aged, many problems have been improved and solved, but some problems remained such as inadequate service supply and consumption of medical insurance for the elderly. Japan will be a society composed 25% of elderly people of total population in 2020, and it will be soon faced with a shortage of welfare and medical facilities and manpower. As for equalizing the benefits and cost burdens, and other future arrangements for health care and welfare, Long-term Care insurance system was established in 1994. This system will be enforced from April 2000 and use present facilities and services. To know home care and home visiting nursing in Japan, we need to consider present conditions well and to take notice of changes and measures to cope with an aging society continuously.
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