• 한국식품영양학회지
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• 제29권2호
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• pp.253-266
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• 2016

The current study was conducted to facilitate appropriate hygiene and safety management in children's food service stations, with the ultimate objective of providing sanitary and safe food service to children. In order to develop questionnaire items, literature review was conducted, in addition to detailed interview of working-level personnel at a children's food service management support center. This resulted in a total of thirty questions on personal hygiene management, food materials hygiene management, and facilities hygiene management. Using the questionnaire, seventy-one food service stations for children in District A in Seoul that serve less than one hundred children were surveyed to analyze the reliability, construct validity, and correlation in the developed measurement tool. The developed measurement tool consisted of ten task and environmental hygiene management questions, five personal and cooking hygiene management questions, four food ingredient and storage hygiene management questions, and four food service operation and management question; with a total of twenty-three questions, in four factors stated above. The cumulative distribution of the four factors was 54.698%, and Cronbach's ${\alpha}$ value was 0.672~0.853, which indicated that the study was reliable. The results of the analysis indicated that each of the factors were correlated, the study was satisfactory, and the tool was valid for evaluating hygiene and safety management practices in children's food service stations. Finally, in order to enhance practical utility of the developed measurement tool, the significance and limitations were described.

• The Journal of Korean Physical Therapy
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• 제35권6호
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• pp.177-184
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• 2023

Purpose: The purpose of this study was to compare the concurrent validity and test-retest reliability of 'KPIMT Torticollis Protractor', a smart phone and I-pad application for convenient range of motion measurement, and 'Image J', an analysis software with high reliability and validity, according to head tilt and active cervical rotation angle. This was done to determine the clinical utility of 'KPIMT Torticollis Protractor'. Methods: Head tilt and active cervical spine rotation angles of 40 children with congenital muscular torticollis were measured using Image J and KPIMT Torticollis Protractor, respectively. The level of concurrent validity and inter-rater and intra-rater reliability between the two measurement methods were analyzed. Results: For forty participants, the concurrent validity between Image J and KPIMT Torticollis Protractor showed very high validity with ICC of ICC 0.977 (0.995-0.999), 0.994 (0.994-0.998), CV_ME% 0.71-0.72%, SEM% 0.31-0.34%, MDC% 0.86-0.94%. The test-retest intra-rater reliability showed very high reliability ICC 0.911 (0.911-0.966), CV_ME% 0.71%, SEM% 0.34-0.36%, MDC% 0.81-0.94%. The test-retest inter-rater showed very high reliability ICC 0.936 (0.933-0.957), CV_ME% 0.70%, SEM% 0.34-0.35%, MDC% 0.81-0.83%. Conclusion: The KPIMT Torticollis Protractor, a smart phone and IPD application, is a highly reliable and valid device for angle measurement in children with congenital myotonia and can be easily used in clinical practice.

• 조명전기설비학회논문지
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• 제20권1호
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• pp.91-99
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• 2006

규모가 큰 제철소는 전기로를 포함한 비선형 부하를 가지고 있고, 고조파 측정 결과 시간에 따라 변하는 고조파 파형이 관측 되었다. 부하 용량이 매우 크기 때문에 전력회사에 미치는 영향이 클 뿐만 아니라 이웃 수용가의 전력시스템에 주는 충격도 고려하여야 한다. 본 논문에서는 시간에 따라 변하는 고조파를 국제 기준인 IEEE 519와 IEC 61000-3-6에 의해 누적확률을 사용하여 평가하였다.

• Asian Pacific Journal of Cancer Prevention
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• 제14권1호
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• pp.351-354
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• 2013

Objective: To assess the practical utility of pleural fluid carbonic anhydrase XII (CAXII) quantification for differential diagnosis of effusions. Materials and Methods: Fluid was collected prospectively from fifty patients presenting with lymphocytic pleural effusions for investigation and CAXII was quantified by ELISA. Results: Pleural fluid CAXII concentrations were significantly higher in lung cancer patients (n=30) than in tuberculous controls (n=20). The sensitivity and specificity of this biomarker were 60%and 75%, respectively. CAXII measurement was not inferior to cytological examination in the diagnosis and exclusion of pleural effusions from lung cancer patitents (sensitivity 60% vs. 57%; specificity 75% vs. 100%; positive predictive value 77%; negative predictive value 54%). In patients with negative cytology, it offered a sensitivity of 54%. Conclusions: Pleural fluid CAXII is elevated in pleural effusions from lung cancer patients. Measurement of CAXII may be used in the future as a valuable adjunct to cytology in the diagnostic assessment of patients with pleural effusions related to lung cancer, especially when cytological examination is inconclusive.

• 전기전자학회논문지
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• 제12권2호
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• pp.87-94
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• 2008

골반저근은 골반기관을 지지하여 요자제를 유지하는 여성의 주요 하부조직으로 수축압력을 평가함으로써 복압성 요실금의 정도를 진단할 수 있다. 본 연구에서는 생체신호 측정 시스템을 개발하여 골반저근의 수축압력을 측정하였으며, 데이터 분석을 통하여 진단 파라메터를 추출하였다. 진단 파라메터의 통계적 분석을 수행하여 특성이 유사한 피험자를 다섯 개의 군집으로 분류하였으며, 군집으로 분류된 데이터가 중첩되지 않도록 복압성요실금 진단 알고리즘을 구현하였다. 임상시험 결과 진단 알고리즘의 정확성이 약 78.9%로 나타났으며 그 유용성이 확인되었다.

• 한국의류학회지
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• 제29권6호
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• pp.764-771
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• 2005

This study is to increase the efficiency for the suitability of clothing measurement and the production utility factors by setting up the measurement system with middle-aged men's physical characteristics. For this purpose this study measured the body sizes of middle-aged men and analyzed basic sizing items such as drop, height, and bust according to the ISO and KS systems and classified these sizes based on body shapes and heights. As a result, an internationally-compatible measuring system is presented in this study. The most common body shapes are portly (Drop 6) and regular (Drop 12) types and these two types form $74.7\%$. The height of 164cm$(31.2\%)$ and 170cm$(38.2\%)$ cover $69.4\%$; and the most general sizes of busts are 92, 96 and 100 and these sizes occupy $74.7\%$. In consideration of the ranges of height and bust, the general sizes (7 regular types and 9 portly types) are selected to present the standardized measurements; the mark for the top is height-bust-waist and the mark for the bottom is stature-waist-hip.

• 조명전기설비학회논문지
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• 제20권7호
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• pp.29-37
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• 2006

고속철도는 동기 전동기를 제어하기 위한 컨버터 및 인버터를 포함한 많은 비선형 부하를 가지고 있다. 이들 비선형 부하에 의한 고조파는 크기가 클 뿐만 아니라 시간에 따라 변하는 특성을 나타내었다. 부하 용량이 매우 크기 때문에 전력회사에 미치는 영향이 클 뿐만 아니라 이웃 수용가의 전력시스템에 주는 영향 또한 고려되어야 한다. 본 논문에서는 시간에 따라 변하는 고조파를 측정하고 국제 기준인 IEEE 519와 IEC 61000-3-6에 의해 누적확률을 사용하여 평가하였다.

• 한국지반공학회:학술대회논문집
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• 한국지반공학회 2010년도 추계 학술발표회 2차
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• pp.200-211
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• 2010

Tunnel Mapper, which is tunnel face survey system was used to conduct Face Mapping on the face of the tunnel that is under construction. Then, accuracy and utility value on the forecast of discontinuity were verified to verify the field application in order to present the measures for the use of the system for conducting research on the discontinuity. As result of the directivity verification following discontinuity‘s project, forecasted measurement and actually researched measurement error for the Dip direction and Dip angle was less than ${\pm}10$. Accuracy was 82.6% for Dip direction and 90.7% for Dip angle, which are high. Accordingly, face research discontinuity forecasting system's reliability level towards directivity is high. Tunnel Mapper, a tunnel face survey system can be leveraged to replace face's visual survey and to obtain objective information, enabling execution of the survey system that can automate face survey going beyond time and space related limitations.

• 대한수의학회지
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• 제44권4호
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• pp.649-653
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• 2004

To estimate the source of variance components for some hematological parameters and assess the utility of the conventional population-based reference interval, this study computed index of individuality for blood samples, which were from 13 dogs drawn once weekly for 4 consecutive weeks. Results were subjected to nested analysis of variance. For all parameters measured between-dog variations were greater than within-dog variation. Except for the parameters RBC and MCHC the index of individuality was <1.4. The low reliability coefficient and high index of individuality of ${\leq}0.8$ were found for the majority of hematological parameters. In practical term, the present study indicated that use of hemogram profiles alone in the evaluating clinical state of a single patient should be avoided because of their physiological or natural random variations, and that comparing a single measurement on the blood analytes from an individual dog to the conventional population-based reference range may be too insensitive to detect any significant changes in the blood components of that particular dog. A single measurement may not characterize an individual's average concentration of the parameters even shortterm period.

• 대한간호학회지
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• 제51권3호
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• pp.305-319
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• 2021

Purpose: The purpose of this study was to develop a measurement tool for a positive nursing organizational culture and to verify its reliability and validity. Methods: A conceptual framework and construct factors were extracted through an extensive literature review and in-depth interviews with nurses. The final version of the preliminary tool for the main survey was confirmed by experts through a content validity test and a preliminary survey of 40 nurses. Subsequently, the final tool was developed using a validity and reliability test containing 43 preliminary items. The final version of the tool was used with 327 hospital nurses in the testing phase for the main survey to assess validity and reliability. Results: From the factor analysis, 4 factors and 26 items were selected. The factors were positive leadership of the nursing unit manager, pursuit of common values, formation of organizational relationships based on trust, and a fair management system. The entire determination coefficient was 67.7%. These factors were verified through convergent, discriminant, and concurrent validity testing. The internal consistency reliability was acceptable (Cronbach's α = .95). Conclusion: Both the validity and reliability of the scale were confirmed demonstrating its utility for measuring positive nursing organizational culture. It is expected to be used for education, research, and practical performance policies regarding the nursing organizational culture.