• Title/Summary/Keyword: preventive

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Establishment of Diagnostic Criteria in the Preventive Diagnostic System for the Power Transformer (전력용 변압기 예방진단새스템의 진단기준치 실정)

  • Kweon Dong-Jin;Koo Kyo-Sun;Kwak Joo-Sik;Woo Jung-Wook;Kang Yeon-Wook
    • The Transactions of the Korean Institute of Electrical Engineers A
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    • v.54 no.9
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    • pp.449-456
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    • 2005

  • The preventive diagnostic technique prevents transformers from power failure through giving alarm and observing transformers in service. And it helps to establish the plan for optimum maintenance of the transformer as well as to find location or cause of fault using accumulated data. Data detection and experience of the preventive diagnostic system need to establish the preventive diagnostic algorithm regarding interrelationship between detected data and deterioration of equipment. Therefore in-depth analysis about the preventive diagnosis system is required. KEPCO has adopted the preventive diagnostic system at nine 345kV substations since 1997. Techniques for component sensors of the preventive diagnosis system were settled but diagnosis algorithm, diagnostic criteria and practical use of accumulated data are not yet established. This paper, to build up the base of preventive diagnostic algorithm for the Power transformer. investigated the preventive diagnostic criteria for the power transformer.

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A Nested Case Control Study on Risk Factors of Coronary Hearth Disease in Korea (관상동맥질환 위험요인 규명을 위한 코호트내 환자-대조군 연구)

  • Kim Ki-Soon;Ryu So-Yeon;Park Jong;Park Jong-Ku;Kim Chun-Bae;Chun Byung-Yeol;Lee Tae-Yong;Lee Kang-Sook;Lee Duk-Hee;Jee Sun-Ha;Suh Il;Korea Research Group for Cardiovascular Disease Prevention and Control Korea Research Group for Cardiovascular Disease Prevention and Control
    • 대한예방의학회:학술대회논문집
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    • 2000.10a
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    • pp.98-99
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    • 2000

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Changes in treatment behavior and cost according to the operation of preventive dentistry in university dental hospital (대학치과병원 예방치과운영 전·후의 환자진료행태와 진료비용 변화)

  • Hong, Hyo-Kyoung;Choi, Seong-Woo
    • Journal of Korean society of Dental Hygiene
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    • v.20 no.5
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    • pp.707-716
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    • 2020

  • Objectives: This study aims to provide basic data for high-quality dental services. In addition, we will promote the operation of preventive dentistry that implements preventive measures. It was conducted to study the change of patient's treatment behavior and treatment cost due to the discontinuation of preventive dentistry in university dental hospitals. Methods: This study collected data using the integrated medical information system of the C University Dental Hospital. From September 1, 2017 to August 31, 2019, data were analyzed using frequency, percentage, mean, standard deviation, chi-square test using SPSS version 24.0 statistical program, and T-test. Results: There was a significant difference in the number of preventive dental treatment cases from 58.3% of preventive dental operation periods to 41.7% of preventive dental operation periods. As a result of comparing the medical expenses, the total medical expenses during the preventive dental operation period decreased from 521,308,872 won to 379,724,995 won during the discontinuation period, 141,583,877 won. The number of medical treatments by treatment behavior decreased 3,835 (28.4%) from a total of 13,520 preventive dental operation periods to 9,685. Conclusions: This study is meaningful as the first study to confirm the change in the treatment behavior and the change in the cost of treatment due to the discontinuation of the operation of preventive dentistry at university dental hospitals. In conclusion, it is thought that there is a possibility of the lack of accessibility and the limitation of professional preventive care due to the discontinuation of preventive dentistry.

  • https://doi.org/10.13065/jksdh.20200065 인용 PDF KSCI