• Journal of the Korean Data and Information Science Society
• /
• 제4권
• /
• pp.75-86
• /
• 1993

This paper deals with the problem of estimating a reliability function for the Rayleigh distribution. Using the priors about a reliabity of real interest some Bayes estimators and Bayes credible sets are proposed and studied under squared error loss and Harris loss.

• 대한전기학회:학술대회논문집
• /
• 대한전기학회 2001년도 하계학술대회 논문집 A
• /
• pp.515-517
• /
• 2001

The efficient and rational transmission rate system is one of the crucial factors in creation of fair and competitive electricity market. Transmission charge can be largely categorized into the line usage charge, system reliability maintenance charge, access charge and others. Therefore, transmission rate structure should be able to reflect these cost components reasonably. This Paper suggests an approach that could be used for the reasonable calcuation of transmission reliability costs with reflection of line sensitivity and line outage rate.

• 대한물리치료과학회지
• /
• 제3권4호
• /
• pp.159-169
• /
• 1996

Every citizen has a right to get the least health care service for their living and should be guaranteed the right of health which is specified in the constitution of Korea. Therefore, health care service should realize the equity and accessibility of service by the equitable distribution which is needed for health care. The objects of this study were the patients who was treated by the physical therapy in health care center(two of them located in cities and others are in agricultural areas). These are the results of our study. First, the age, job, sex and experience of former treatment of objects showed no meaningful statistic difference in the part of convenience of health care center, where as the system of health scurity showed highly meaningful difference. Second, The age, job and system of health care of objects showed no meaningful difference in the part of attitude and appreciation to therapist, where as the experience of former treatment in other center showed highly meaningful difference. Third, The age, job and sex of objects showed no meaningful difference in the part of the appreciation to results of service, where as the system of health scurity and the experience of former treatment in other center showed meaningful difference. To offer the effective physical therapy, the government of province or nation should invest the large amount of financial fund continuously and make the plan of efficient operating system for the physical therapy service room of public health center which is the most nearly located to native citizen. The problem of distance, low reliability to public service, public relation and reliabity should be improved to raise the utility of physical therapy room. And also, the physical therapy room should be opened in health subcenter to offer the condition of the native citizen's healthy life.

• 치위생과학회지
• /
• 제3권2호
• /
• pp.83-88
• /
• 2003

치과의료기관의 질관리를 위한 환자만족도 조사의 측정도구를 개발하고 평가하기 위하여 3회의 설문조사를 실시하였다. 51개소의 치과의료기관이 조사에 참아하였으며, 1017명이 응답하였고, 의료기관의 유형과 자료수집 방법에 따라 5개의 표본 집단으로 분류되었다. 표본 집단과 응답자의 특성에 따른 측정값, 신뢰도, 응답편견의 차이와 효과를 비교하기 위하여 정규성검정, t 검정, 분산분석, 카이스케어 검정, Kruscal-Wallis 검정을 실시하였다. 응답 편견과 균형척도에 의한 신뢰도, 타당도, 척도판별력의 저하효과가 추정되었다. 1. 측정 도구 문제를 평가하기 위한 독립 표본의 신뢰도를 비교한 결과 4개의 표본 집단의 내적 일관성의 신뢰도는 비슷한 수준을 보이고 있다. 2. 두 항목의 균형 척도에 대한 긍정 응답 편견률은 20%이며, 교육 수준에 따라 유의한 차이가 나타났다(P<0.05). 3. 환자 관점의 질 평가 척도의 측정값은 독립 표본 사이에 유의한 차이가 나타나지 않았으며, 연령에 따라 20대와 60대 사이에 유의한 차이가 나타나고 있다(P<0.01). 4. Likert 5점 척도로 구성된 총화평정척도의 평균은 4.16으로 좌측으로 편이되고 중앙값에 집중된 높은 첨도의 분포를 보였다. 5. 하위척도 사이의 평균차, 삼사분위값 대 일사분위값의 평균차가 95%의 신뢰구간에 포함되어 측정도구의 판별력은 매우 낮았다.