• 제목/요약/키워드: Diagnostic system

검색결과 2,282건 처리시간 0.037초

예방진단시스템의 데이터 신뢰성 분석 (Analysis of the Data Reliability for the Preventive Diagnostic System)

  • 권동진;진상범;곽주식;우정욱;추진부
    • 전기학회논문지P
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    • 제54권2호
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    • pp.94-100
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    • 2005
  • Abnormal symptoms on operating conditions of power transformer are monitored by a preventive diagnostic system which prevents the sudden power failure in case of quick progress of abnormal situation. The preventive diagnostic system helps plan the proper maintenance method according to the transformer conditions via accumulated data. KEPCO has adopted the preventive diagnostic system at nine of 345kV substations since 1997. Application techniques of the diagnostic sensors were settled, but diagnostic algorithm and practical use of accumulated data are not yet established. To build up the diagnostic algorithm and effective use of the preventive diagnostic system, the reliability of the data which were accumulated in a server computer is very important. This paper describes the data analysis in the server in order to advance the reliability of the accumulated data of the preventive diagnostic system. The principles and data flows of the diagnostic sensors were analyzed, and the data discrepancy between sensors and server were calibrated.

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

  • 권동진;구교선;곽주식;우정욱;강연욱
    • 대한전기학회논문지:전력기술부문A
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    • 제54권9호
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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.

DSM 진단 기준을 이용한 ADHD 진단 전문가시스템 구현 (Implementation on ADHD Diagnostic Expert System based on DSM Diagnostic Criteria)

  • 황주비;이강희
    • 예술인문사회 융합 멀티미디어 논문지
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    • 제7권11호
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    • pp.515-524
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    • 2017
  • 본 논문에서는 ADHD 진단을 해주는 전문가시스템을 설계 및 구현한다. DSM-IV-TR을 이용하여 ADHD 진단기준을 연령대에 따라 단어를 바꾸어 구체화한다. 이 진단지를 가지고 오브젝트와 해당 값을 설정하고 규칙을 생성한다. 그리고 'ADHD 진단 시스템 엔진'과 '사용자 질의응답 프로그램'으로 구성된 진단시스템을 설계한다. 'ADHD 진단 시스템 엔진'은 규칙 기반 추론 엔진으로 Prolog 언어로 구현하여, INPUT을 '사용자 질의응답 프로그램'으로부터 받는다. INPUT에 의해 규칙은 ADHD 진단기준을 기반으로 점화되며 진단결과를 추론해서 OUTPUT을 다시 '사용자 질의응답 프로그램'으로 보낸다. '사용자 질의응답 프로그램'은 Python 언어로 구현하여 사용자와의 대화를 처리하는 인터페이스 역할을 한다. 'ADHD 진단 시스템 엔진'과 '사용자 질의응답 프로그램'의 중간다리 역할을 Pyswip 라이브러리를 통해서 수행한다. 결과적으로 ADHD 진단 전문가시스템을 통해 진단비용 절감과 간편한 이용으로 치료계획에 도움을 주고자한다.

변압기 온라인 예방진단 센서의 점검현황 (Inspection On Sensors of Online Preventive diagnostic system Sensors for Power Transformer)

  • 구교선;권동진;진상범;곽주식;강연욱
    • 한국조명전기설비학회:학술대회논문집
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    • 한국조명전기설비학회 2005년도 춘계학술대회논문집
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    • pp.455-460
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    • 2005
  • Preventive diagnostic system for power transformer prevents the sudden power failure through monitoring of abnormal symptoms. KEPCO has adopted the preventive diagnostic system at nine 345kV substations since 1997. Application techniques of the diagnostic sensors were settled, but diagnostic algorithm and practical use of accumulated data are not yet established. To build up the diagnostic algorithm and effective use of the preventive diagnostic system, the reliability of the data accumulated in a server computer is very important. Therefore, this paper describes problem when apply system to substation and solution way to improve reliability of the system

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'『상한론(傷寒論)』 육경(六經)과 조문(條文)에 근거한 진단체계(診斷體系)' 명명(命名)에 대한 고찰(考察) 및 제안(提案) (A study on the naming of 'A diagnostic system based on Shanghanlun six meridian patterns and provisions' and suggestion)

  • 김대담
    • 대한상한금궤의학회지
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    • 제5권1호
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    • pp.19-29
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    • 2013
  • Objective : The purpose of this study is to analyze the naming of 'A diagnostic system based on Shanghanlun six meridian patterns and provisions' and to suggest an alternative naming. Methods : 1. The meaning of 'Six meridian(六經)' was reviewed on existing theories and Shanghanlun provisions. 2. Comparing the name of diangostic system with the term in 'Korean Standard Classification of Diseases-6(KCD-6)' and term in 'WHO international standard terminologies on traditional medicine in the western pacific region' was done. Results : 'Six meridian' is customary used in the Shagnhanlun study but its meaning is not match with original Shanghanlun system and could possibly make misunderstanding. So 'Disease pattern identification' is suitable than 'Six meridian' for this diagnostic system. Conclusions : This study suggests that using 'A disease pattern identification diagnostic system based on Shanghanlun provisions.'is more appropriate instead of using the name of the six meridian diagnostic system.

모터구동밸브 진단장비 개발 (Development of a Diagnostic System for Motor-Operated Valves)

  • 강성기;최현우;박성근;강신철;채장범
    • 한국소음진동공학회:학술대회논문집
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    • 한국소음진동공학회 2008년도 춘계학술대회논문집
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    • pp.420-424
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    • 2008
  • The new MOV(motor-operated valve) diagnostic system MOVIDS(MOV intelligent diagnostic system) was developed. Its remote diagnostic methods with high accuracy have improved the applicability. This enables the diagnostic tests and the evaluations of many MOVs not only at the valves but also in remote places like MCCs(motor control centers). The remote diagnostic ability of the new system reduces the cost and the man power for diagnosing MOVs and eliminates the danger of the toxic or radioactive environments to which workers might be exposed.

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공기구동밸브 성능 진단 장비 개발 (Development of the Diagnostic System for the Performance of Air-Operated Valves)

  • 김윤철;강성기;박성근;김대웅;채장범
    • 한국소음진동공학회:학술대회논문집
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    • 한국소음진동공학회 2008년도 춘계학술대회논문집
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    • pp.416-419
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    • 2008
  • In order to ensure the safety, the performance evaluation of the safety-related components in a nuclear power plant such as air-operated valves. In this paper, the diagnostic system(MOVIDS $A^+$) for the performance of air-operated valves was developed. For this purpose, the characteristics of their operation and the methods of the diagnostic tests were reviewed. The setup and diagnostic functions of the system were mentioned. Its applicability was validated through the diagnostic tests of air-operated valves in nuclear power plants. This diagnostic system is now applied in nuclear power plants for performance tests.

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7구역 진단기와 임상지표와의 상관성 연구 (A Study on the Correlation about 7-Zone-Diagnostic System and Clinical Parameters)

  • 조웅희;박원형;차윤엽
    • 한방재활의학과학회지
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    • 제20권1호
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    • pp.167-182
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    • 2010
  • Objectives : The purpose of this study is to find correlation about 7-Zone-Diagnostic System and Clinical Parameters using Oriental Health Examination. Methods : Subjects of our study were 325 cases who took Oriental Health Examination. We collected the data of body composition analysis, 7-Zone-Diagnostic System, blood analysis and devided by 7-Zone-Diagnostic system to acceleration, normalcy and depression. Results and Conclusions : The values of muscle mass, body fat mass, abdomen obesity rate, right arm water index, left arm water index, trunk water index, right leg water index, left leg water index, BMI, BMR, GOT, GPT, ${\gamma}$-GTP, BUN, TC, triglyceride and hemoglobin were continuous with 7-Zone-Diagnostic system.

전력용 변압기 예방진단 기준치 검토 (Investigation of the Preventive Diagnostic Criteria for Power Transformer)

  • 권동진;구교선;강연욱;우정욱;곽주식
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2005년도 제36회 하계학술대회 논문집 A
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    • pp.592-596
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    • 2005
  • The preventive diagnostic system prevents transformers from power failure by giving alarm and observing transformers in service. And it helps to establish the plan for optimum maintenance of transformer as well as to find location or cause of fault using accumulated data. KEPCO has adopted the preventive diagnostic system at nine 345kV substations since 1997. Techniques for component sensors of preventive diagnostic system were settled but diagnostic 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 power transformer.

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현재 불안 장애의 분류 : 타당한가? (DSM-IV Diagnostic Criteria for Anxiety Disorder: Discriminant Validity)

  • 유범희;이인수
    • 대한불안의학회지
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    • 제1권1호
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    • pp.18-24
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    • 2005
  • The Diagnostic and Statistical Manual 4th edition (DSM-IV) has been widely accepted and used for international classification of mental disorder. The DSM has been changed to improve diagnostic reliability and validity through descriptive and categorical approaches which was undertaken atheoretically. The authors reviewed current studies about the DSM-IV classification system and the diagnostic issues of representative categories of anxiety disorder. The authors concluded that the anxiety disorder classification system in DSM-IV has limitations such as a lack of empirical consideration for overlapping features of anxiety disorders and a lack of discriminant validity. To improve diagnostic validity and revise the current DSM-IV classification system, the authors suggested 1) more longitudinal studies for collecting empirical evidence, 2) decreasing the dependence upon operational criteria, 3) deceasing diagnostic boundary blurring, 4) developing disease specific biological diagnostic techniques and 5) continued collaboration between the DSM and International Classification of Diseases (ICD) systems.

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