• 제목/요약/키워드: Life-expectancy

검색결과 589건 처리시간 0.022초

네오디늄 램프의 광 특성 분석 (Lighting Characteristic Analysis with Neodymium Lamp)

  • 어익수
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2006년도 제37회 하계학술대회 논문집 C
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    • pp.1673-1674
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    • 2006
  • The most ideal light source known to the mankind is sunlight. Therefore, whenever an artificial light source is needed in a dark place such as in a shadowed houses, the utmost goal is to find an artificial light characteristics of which approaches that of sunlight. On this ground, we have investigated a Neodymium lamp as a possible substitute for sunlight. Especially, the local and the color rendering, a life expectancy, and the overall efficiency are carefully studied.

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Health Promotion Practice, Standards and Activities of Local Health Departments in the United States

  • Cho, Jung H.;OConnor, Pat V.
    • Korean Journal of Health Education and Promotion
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    • 제1권1호
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    • pp.95-117
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    • 1999
  • As the nation is moving into the 21st century, the fundamental challenge facing local health departments in the United States is to improve the quality of peoples lives by preventing disease, injury, and disability through collaboration with public and private partners. During this century, life expectancy in the United States has increased remarkably from less than 50 years at the turn of the century to 79 years for woman and 72 years for men (CDC 1999; Bunker et al. 1994). Major portions of this gain can be attributed to advances in public health. (omitted)

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조등산(釣藤散)의 약리학적(藥理學的) 고찰(考察) (A review on pharmacological properties of Jodeungsan)

  • 진종식;권동렬
    • 대한한의학방제학회지
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    • 제16권1호
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    • pp.55-64
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    • 2008
  • The span of life of human beings has lengthened because of medical progress and so on. Consequently, the old have begun to remark that quality of life (QOL) is as important as extension of the life expectancy. However, some diseases such as stroke, cancer induce decrease of QOL. In case of the stroke, it is followed by chronic headache and dementia as an aftereffect, causing serious decrease of QOL. Jodeungsan, traditional medicine, have been prescribed for headache and hypertension. Many clinical trials and laboratory experiments about pharmacological effects of Jodeungsan have been reported. Jodeungsan ameliorated chronic headache and improved recognitive deficit. Moreover, Jodeungsan lowered blood pressure in hypertensive condition which is one of a major cause of stroke. These effects of Jodeungsan on several diseases are partly attributed to antioxidant effect. This report reviews the pharmacological effect of Jodeungsan in the view of stroke-related diseases.

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Analysis of cause-of-death mortality and actuarial implications

  • Kwon, Hyuk-Sung;Nguyen, Vu Hai
    • Communications for Statistical Applications and Methods
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    • 제26권6호
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    • pp.557-573
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    • 2019
  • Mortality study is an essential component of actuarial risk management for life insurance policies, annuities, and pension plans. Life expectancy has drastically increased over the last several decades; consequently, longevity risk associated with annuity products and pension systems has emerged as a crucial issue. Among the various aspects of mortality study, a consideration of the cause-of-death mortality can provide a more comprehensive understanding of the nature of mortality/longevity risk. In this case study, the cause-of-mortality data in Korea and the US were analyzed along with a multinomial logistic regression model that was constructed to quantify the impact of mortality reduction in a specific cause on actuarial values. The results of analyses imply that mortality improvement due to a specific cause should be carefully monitored and reflected in mortality/longevity risk management. It was also confirmed that multinomial logistic regression model is a useful tool for analyzing cause-of-death mortality for actuarial applications.

균열진 구조물의 피로수명 연장을 위한 Patch 설계기법에 관한 연구 (A Study on Patch Design Technique for Fatigue Life Prolongation of Cracked Structures)

  • 한문식
    • 대한조선학회논문집
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    • 제29권2호
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    • pp.79-91
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    • 1992
  • 본 논문에서는 균열 보수에 사용되는 Patch와 균열진 판 사이에 컴프라이언스 개념을 적용하여 Patch된 균열진 판의 응력확대계수를 이론유도하고, 이에 대한 실험과 균열진전 거동규명을 통하여 그 유효성을 충분히 검증하였다. 또한, 이와같은 컴프라이언스를 이용한 이론방법을 바탕으로 균열진 구조물의 잔존수명이 고려된 Patch를 간단히 설계할 수 있는 기법을 제시하였다.

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중년기 자녀의 노부모 부양 : 의무에서 성숙의 차원으로 (Middle-aged children's filial responsibility of their aging parents: From filial obligation to filial maturity)

  • 옥경희
    • 가정과삶의질연구
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    • 제14권2호
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    • pp.265-276
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    • 1996
  • Due to the increase in life expectancy the family life of recent days has been through significant changes including prolonged relationships among different generations within families and changing roles and relationships. From the perspective of the care for elderly parents middle-aged children's filial responsibility habe been examined. Based on balanced reciprocity between middle-aged children and their aging parents each party is able to allow each other to respond needs and to respect rights. It is assumed that middle-aged children's moral development may be useful to discriminate levels of filial responsibility from filial obligation to filial maturity. This assumption challenges previous beliefs that filial obligation and filial maturity are the same,.

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Healthy Korea 2010 : Role of the Health Educator

  • Choi, Eun-Jin
    • 보건교육건강증진학회지
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    • 제22권3호
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    • pp.157-171
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    • 2005
  • The Korean Government has produced the Health Plan 2010 aimed at setting up healthy Korea objectives, policies on preventing chronic diseases, reshaping the country's health and medical infrastructure. The policy goal targets the people's healthy life expectancy at 75 by 2010, and includes healthy life practice measures including health education, health improvement services, and disease management measures, in achieving the objectives. Also, the plan provides life cycle-based health improvement and disease prevention services, as well as pushes ahead with projects with greater ripple effects in each area. To this end, the government is simultaneously pushing to operate an experts-centered health promotion committee and establishing the infrastructure including the augmentation of national health improvement funds. Through its Health Plan 2010, the Korean Government will exert efforts to achieve its policy objectives as addressed in the measures by enhancing the national potential health and providing systematic disease prevention services.

대구경 상수도관로의 경제적수명 산정 연구: P상수도 사례연구 (A study on the economical life of large-diameter water pipe: case study in P waterworks)

  • 김기범;서지원;최태호;구자용
    • 상하수도학회지
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    • 제32권1호
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    • pp.37-45
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    • 2018
  • This study develops a model to estimate the economic life of the large-diameter water supply pipeline in Korea by supplementing existing methods used to perform similar calculations. To evaluate the developed methodology, the model was applied to the actual target area with the conveyance pipe in P waterworks. The application yielded an economic life computation of 39.7 years, considering the cost of damages, maintenance, and renewal of the pipeline. Based on a sensitivity analysis of the derived results, the most important factor influencing the economic life expectancy was the predicted failure rate. The methodology for estimating the economic life of the water supply pipeline proposed in this study is one of the core processes of basic waterworks facility management planning. Therefore, the methods and results proposed in this study may be applied to asset management planning for water service providers.

영유아 생명표 작성에 관한 연구 (Construction of a Life Table for Infant and Childhood)

  • 김종석
    • 한국인구학
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    • 제3권1호
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    • pp.52-61
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    • 1979
  • The purpose of the study is to construct a life table for population. It is based on the fraction of last year of life, $a_X$. The data necessary for this purpose have been obtained from the 1975 Population Census Report of Korea and the Vital Statistics of Shindong-myon, Chunseong-gun, Gangwon Province which is collected for the Seoul National University public health program. Age specific death rate is adapted by the Model Life Table, West, Level 21. For the age groups of less than 5 years of age, when the record of vital events can be obtained, the fractions are calculated from the community vital statistics. And for the age groups older than 5 years of age, Greville's Method is used. The findings are summarized as follows: 1) The fraction of last year of life in infantile group is 0.3684 for males, 0.3711 for females, and in 1-4 years of age group 1.2164 for males, 1.2274 for females. Both are more than those of Japan and U.S. in 1963. 2) Infant mortality rate is 42.37 for males, 31.77 for females per 1,000 live births. 3) The mortality curves show that a higher rate is observed under 1 year of age. It drops to the lowest point at around 10 years of age and rises again as the age increases. 4) The age estimated half-survival rate is during the age group of 70-74 for both sexes. 5) Life expectancy at the age of 0 shows 65.73 years for males and 69.22 years for females.

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배전 변압기의 통계적 기대 수명 평가 및 초기 고장제거 적정성 검토 (Distribution Transformer Statistical Expected Life Evaluation and Removal Adequacy Review)

  • 조종은;김상봉;이온유;김강식
    • KEPCO Journal on Electric Power and Energy
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    • 제8권2호
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    • pp.79-86
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    • 2022
  • Recently, the amount of maintenance is increasing due to the aging of power facilities, but the budget is constrained. Therefore, the importance of asset management that selects replacement priorities based on the failure probability and enhances investment effects is increasing. Because the number of distribution transformers is very large, the proportion of investment cost is very high. Therefore, it is important to select the investment priority by evaluating the reliable remaining life based on the failure probability. This paper evaluates the statistical expected life using the failure data of distribution transformers for the last 11 years and the current operation data. The hazard rate of distribution transformer and MV cable was compared with each other and the adequacy of early failure removal was reviewed and the statistical expected life corresponding to the cumulative failure probability B3% was calculated.