• 제목/요약/키워드: test items

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신뢰도(信賴度) 분석(分析)을 위한 고장률(故障率) 증가품목(增加品目)에 대한 수명검정(壽命檢定) (Life Testing of Failure Rate Increasing Items for Reliability Analysis)

  • 서남수
    • 대한산업공학회지
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    • 제12권1호
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    • pp.139-146
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    • 1986
  • This study is concerned with the development of statistical life test plans for the mean lifetime of an item whose underlying lifetime distribution is a two parameter Weibull, which is perhaps the most widely used lifetime model. For this purpose, I used the likelihood ratio test method, and I verified the developed test plans and determined the sampling size and censoring number by computer similation.

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전철화된 호남선에서의 전기차량에 의한 전차선로 측정 및 평가 (The measurement and evaluation of catenary system by using electric rolling stock on Honam-Line electrified)

  • 안영훈;현충일
    • 한국철도학회:학술대회논문집
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    • 한국철도학회 2004년도 춘계학술대회 논문집
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    • pp.1286-1291
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    • 2004
  • This paper was showed evaluation method and technical items for measurement test of new catenary system of Honam(Daejeon - Mokpo) conventional railway electrified. This line have tested by three type new electric rolling stocks in order to test construction quality and operation safety of a new catenary system with speed-up than conventional speed. We have some important experiences through measurement test of catenary system by new device installed on train roof.

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KRISS에서 수행된 음향관련 교정 및 시험 동향 (Tendency of Calibration and Test for Acoustic Field in KRISS)

  • 서재갑;권휴상;정성수;조문재;서상준
    • 한국소음진동공학회:학술대회논문집
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    • 한국소음진동공학회 2002년도 춘계학술대회논문집
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    • pp.448-452
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    • 2002
  • We report the number of calibration and test for acoustic field which were conducted in KRISS between the year of 1990 and 2001. The items contain sound level meter and calibrator for calibration and sound absorption coefficient, transmission loss, sound pressure level of siren, sound pressure level and power of acoustic instrument and relative accessories for test. The data show that the number of them have been increased continuously.

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PBD의 배수특성과 대심도 지반개량 (Discharge Capacity of PBD and Deep Soft Soil Improvement)

  • 구본효
    • 한국지반공학회:학술대회논문집
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    • 한국지반공학회 2002년도 가을 학술발표회 논문집
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    • pp.585-592
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    • 2002
  • Discharge capacity of PBD is the most important factor of specification items to control any product of PBD. There is no standard specification for the PBD. Because the degree of discharge capacity is related to well resistance, install depth, maximum strain etc in the field. Discharge capacity test of PBD, permeability test of filter are conducted using PBD materials used in Korea. This paper proposes the critical discharge capacity for deep PBD under condition of non well resistance based upon their test and theoretical calculation. It was found that discharge capacity more than about 10 ㎤/sec is enough to undergo designing of deep PBD without well resistance.

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IEC 61850 IED대상 데이터세트 적합성 시험에 관한 연구 (Study on the dataset conformance testing IEC 61850 based IED)

  • 이남호;장병태;김지희
    • 한국조명전기설비학회:학술대회논문집
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    • 한국조명전기설비학회 2008년도 추계학술대회 논문집
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    • pp.371-374
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    • 2008
  • KEPRI has carried out IEC61850 communication conformance test about the IED trial products. This paper describes dataset conformance testing, one of the IEC 61850-10 conformance test items, and test procedures on IED. KEPRI plans to construct the testing field of IEC 61850 based substation automation system with domestic IEDs confirmed their IEC 61850 communication service including dataset.

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가정간호 서비스 질 평가를 위한 도구개발연구 (A basic research for evaluation of a Home Care Nursing Delivery System)

  • 김모임;조원정;김의숙;김성규;장순복;유호신
    • 가정∙방문간호학회지
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    • 제6권
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    • pp.33-45
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    • 1999
  • The purpose of this study was to develop a basic framework and criteria for evaluation of quality care provided to patients with the attributes of disease in the home care nursing field, and to provide measurement tools for home health care in the future. The study design was a developmental study for evaluation of hospital-based HCN(home care nursing) in Korea. The study process was as follows: a home care nursing study team of College of Nursing. Yonsei University reviewed the nursing records of 47 patients who were enrolled at Yonsei University Medical Center Home Care Center in March, 1995. Twenty-five patients were insured at that time, were selected from 47 patients receiving home care service for study feasibility with six disease groups; Caesarean Section (C/S), simple nephrectomy, Liver cirrhosis(LC), chronic obstructive pulmonary disease(COPD), Lung cancer or cerebrovascular accident(CVA). In this study, the following items were selected : First step : Preliminary study 1. Criteria and items were selected on the basis of related literature on each disease area. 2. Items were identified by home care nurses. 3. A physician in charge reviewed the criteria and content of selected items. 4. Items were revised through preliminary study offered to both HCN patients and discharged patients from the home care center. Second step : Pretest 1. To verify the content of the items, a pretest was conducted with 18 patients of which there were three patients in each of the six selected disease groups. Third step : Test of reliability and validity of tools 1. Using the collected data from 25 patients with either cis, Simple nephrectomy, LC, COPD, Lung cancer, or CVA. the final items were revised through a panel discussion among experts in medical care who were researchers, doctors, or nurses. 2. Reliability and validity of the completed tool were verified with both inpatients and HCN patients in each of field for researches. The study results are as follows: 1. Standard for discharge with HCN referral The referral standard for home care, which included criteria for discharge with HCN referral and criteria leaving the hospital were established. These were developed through content analysis from the results of an open-ended questionnaire to related doctors concerning characteristic for discharge with HCN referral for each of the disease groups. The final criteria was decided by discussion among the researchers. 2. Instrument for measurement of health statusPatient health status was measured pre and post home care by direct observation and interview with an open-ended questionnaire which consisted of 61 items based on Gorden's nursing diagnosis classification. These included seven items on health knowledge and health management, eight items on nutrition and metabolism, three items on elimination, five items on activity and exercise, seven items on perception and cognition, three items on sleep and rest, three items on self-perception, three items on role and interpersonal relations, five items on sexuality and reproduction, five items on coping and stress, four items on value and religion, three items on family. and three items on facilities and environment. 3. Instrument for measurement of self-care The instrument for self-care measurement was classified with scales according to the attributes of the disease. Each scale measured understanding level and practice level by a Yes or No scale. Understanding level was measured by interview but practice level was measured by both observation and interview. Items for self-care measurement included 14 for patients with a CVA, five for women who had a cis, ten for patients with lung cancer, 12 for patients with COPD, five for patients with a simple nephrectomy, and 11 for patients with LC. 4. Record for follow-up management This included (1) OPD visit sheet, (2) ER visit form, (3) complications problem form, (4) readmission sheet. and (5) visit note for others medical centers which included visit date, reason for visit, patient name, caregivers, sex, age, time and cost required for visit, and traffic expenses, that is, there were open-end items that investigated OPD visits, emergency room visits, the problem and solution of complications, readmissions and visits to other medical institution to measure health problems and expenditures during the follow up period. 5. Instrument to measure patients satisfaction The satisfaction measurement instrument by Reisseer(1975) was referred to for the development of a tool to measure patient home care satisfaction. The instrument was an open-ended questionnaire which consisted of 11 domains; treatment, nursing care, information, time consumption, accessibility, rapidity, treatment skill, service relevance, attitude, satisfaction factors, dissatisfaction factors, overall satisfaction about nursing care, and others. In conclusion, Five evaluation instruments were developed for home care nursing. These were (1)standard for discharge with HCN referral. (2)instrument for measurement of health status, (3)instrument for measurement of self-care. (4)record for follow-up management, and (5)instrument to measure patient satisfaction. Also, the five instruments can be used to evaluate the effectiveness of the service to assure quality. Further research is needed to increase the reliability and validity of instrument through a community-based HCN evaluation.

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초등학교 급식 조리종사자의 위생지식 검사를 통한 교육 필요성 평가 (Need Assessments of HACCP - based Sanitation Training Program in Elementary School Foodservice Operations based on Sanitation Knowledge Test of Employees)

  • 어금희;류경;박신정;곽동경
    • 대한영양사협회학술지
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    • 제7권1호
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    • pp.56-64
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    • 2001
  • The study was conducted to assess sanitary concepts of employees and needs of HACCP-based sanitation training program for elementary school foodservice operations. Subjects consisted of 370 foodservice employees. Foodservice employees' demographic characteristics were surveyed, and their food sanitation knowledge was tested. Food sanitation knowledge included 4 dimensions of foodborne disease & food microbiology; sanitary management in food product flows; personal hygiene management; and equipment & facility sanitation management. The data were analysed using the SPSS package for descriptive analysis, t-test and ANOVA test. The average sanitation knowledge score was 9.5 out of 15. The working periods of foodservice employees were singnificantly(p<01) related to food sanitation knowledge dimensions. Correct answering rate of 4 sanitation management dimensions were 74.4% in foodborne disease & food microbiology; 536% in sanitary management in food product flows; 78.7% in personal hygiene management; and 50.5% in equipment & facility sanitation management. 6 items in 4 sanitation knowledge dimensions under mean score were identified. Those items were temperature danger zone, thawing method of frozen foods, cooking & holding temperature, proper sampling & storage methods, proper storing methods in refrigerator, and proper washing & sanitizing method for utensils. Identified 6 items were included in 12 critical control points developed for the elementary school generic HACCP plan, and should be emphasized in implementing HACCP-based sanitation training program.

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부합성 분석을 이용한 정보화지원사업 성과평가지표의 합리적 도출 방안 (A Rational Development Way of Performance Evaluation Measures for the Informatization Program by means of the Coincidence Analysis)

  • 최점기;박일규;김상훈
    • Journal of Information Technology Applications and Management
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    • 제13권3호
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    • pp.145-179
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    • 2006
  • The measurement of informatization program effectiveness continues to be a central concern of both academics and practitioners. However, most studies of it have been inclined too heavily toward testing validity and reliability of evaluation measure to strengthen the theoretical rigor. Drawbacks of this approach have been pointed out as being unsuitable for evaluating the effectiveness of informatization program due to lack of practical relevance. The paper comprises four sections to solve the problem. 1) Through literature review of theoretical conceptual models in IS effectiveness and the domestic and foreign cases on informatization program, we establish the evaluation framework which consists of evaluation phases, 6 evaluation areas, and 22 evaluation items, and developed evaluation measures of each items. 2) Different researchers have addressed different aspects of attribute of measure. With comparing them to each other, 3 mutually exclusive criteria on coincidence analysis(usability of measurement. reliability of measurement. and validity of content) are identified. 3) Data are gathered from respondents in informatizaiton program-related organizations such as policy agency, management agency, support agency, and recipient agency. 4) The degree of coincidence of each evaluation measure are analyzed by course of an coincidence analysis procedure, which includes the reliability test, arithmetical test, and criteria validity test. The academic implication of this study is that researchers can gain an insight into the coincidence analysis to approach the problem of deciding on an indicator of performance for informatization program. There is also practical implication for applying the potential means of improving the practical relevance of conducting evaluating the informatization program.

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A Longitudinal Study on the Prevalence of Major Adult Chronic Disease in Korean Employees between 2001 and 2010

  • Lee, Gyu-Jang;Kim, Soon-Ki;Kim, Hye-Young;Lee, Chang-Kyou;Lee, Seung-Gwan;Cho, Kyung-Jin
    • 대한임상검사과학회지
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    • 제44권1호
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    • pp.7-16
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    • 2012
  • The Korean GDP per capita doubled during the last 10 years. As the GDP increases, Korean health behaviors such as, eating, drinking, smoking, and exercise habits changed as well. Compared to the remarkably advanced diagnostic technologies and therapeutics during the last decade, the leading causes of death in Korea scarcely changed. Among the leading causes of death, cerebrovascular disease, heart disease, diabetes, liver disease and hypertension are closely related to health behaviors. Using the database of medical check-up between 2001 and 2010, the authors performed a longitudinal study for the prevalence rates and the trends of major chronic adult diseases among the 2,721 workers along with their health behavior. Among the diagnostic test items, fasting blood sugar, cholesterol and BMI levels showed steady increase and these three test items all showed linear trends (p<0.001). The average blood sugar and cholesterol levels were near worrying levels. Moreover, the average BMI of males was found to be at the overweight level, intimating the possibility reaching thee Obese Class I level soon if there are no aggressive counter measures. Fasting blood sugar and cholesterol levels were higher in a drinking group as compared to a non-drinking group, and the BMI levels were also higher in the drinking group and the smoking group as compared to the non-drinking and the non-smoking group (p<0.001). Finally, the authors believe that the fasting blood sugar, cholesterol and BMI levels should be designated as target monitoring test items in the medical check-up for Korean employees.

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한국노인과 미국이민 한국노인의 건강증진 행위, 생활만족도 및 자아존중감의 비교 연구 (The Comparative Study on Health-promoting Behavior, Life Satisfaction and Self-esteem between Korean Elderly and American-Korean Elderly)

  • 최연희
    • 지역사회간호학회지
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    • 제14권4호
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    • pp.667-675
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    • 2003
  • Purpose: This study was purposed to provide basic data for developing future health promotion programs by comparing health-promoting behavior, life satisfaction and self-esteem between the Korean elderly and the American-Korean elderly. Methods: The subjects were volunteer participants of 120 elders in the Gyeongsan City in Korea and 120 elders in the state of Washington in the U.S. Tools used in this study were Health Promoting Lifestyle Profile (47 items), Life Satisfaction Scale (20 items) and Self-Esteem Scale (10 items). To analyze data, this study used frequency, percentage, chi-square test, t-test, Kendal tau test, Pearson's correlation coefficient with SPSS program. Results: 1) The average score of health-promoting behaviors was 3.21 in Koreans and 3.50 in American-Koreans, showing a significant difference between the two groups. 2) The sub-scales that got the highest score of health-promoting behaviors were self-actualization and nutrition(M=3.41) in Koreans and nutrition(M=3.61) in American-Koreans, and that with the lowest score was exercise in both groups(2.89 in Koreans and 3.02 in American-Koreans). 3) The average score for life satisfaction was 2.76 in Koreans and 3.06 in American-Koreans, showing a significant difference between the two groups. 4) The average score for self-esteem was 3.39 in Koreans and 3.09 in American-Koreans, showing a insignificant difference between the two groups. 5) Health-promoting behaviors were positively related to life satisfaction and self-esteem. Life satisfaction was positively related to self-esteem in both groups. Conclusions: According to the results of this study, the health-promoting behaviors of Korean and American-Korean elders strongly correlated with life satisfaction and self-esteem. Therefore, health promoting programs that enhance life satisfaction and self-esteem should be developed in order to promote the elderly's healthy lifestyle.

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