• Title/Summary/Keyword: Management diagnosis

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Fault Diagnosis Algorithm of Electronic Valve using CNN-based Normalized Lissajous Curve (CNN기반 정규화 리사주 도형을 이용한 전자식 밸브 고장진단알고리즘)

  • Park, Seong-Mi;Ko, Jae-Ha;Song, Sung-Geun;Park, Sung-Jun;Son, Nam Rye
    • Journal of the Korean Society of Industry Convergence
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    • v.23 no.5
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    • pp.825-833
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    • 2020
  • Currently, the K-Water uses various valves that can be remotely controlled for optimal water management. Valve system fault can be classified into rotor defects, stator defects, bearing defects, and gear defects of induction motors. If the valve cannot be operated due to a gear fault, the water management operation can be greatly affected. For effective water management, there is an urgent need for preemptive repairs to determine whether gear is damaged through failure prediction diagnosis.. Recently, deep learning algorithms are being applied for valve failure diagnosis. However, the method currently applied has a disadvantage of attaching a vibration sensor to the valve. In this paper, propose a new algorithm to determine whether a fault exists using a convolutional neural network (CNN) based on the voltage and current information of the valve without additional sensor mounting. In particular, a normalized Lisasjous diagram was used to maximize the fault classification performance in the CNN-based diagnostic system.

Development of the Intelligent Switchgear Prototype with Arc Fault Detection Capability (아크고장 검출 기능을 가지는 지능형 분전반 개발)

  • Ko, Yun-Seok;Lee, Seo-Han
    • The Journal of the Korea institute of electronic communication sciences
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    • v.11 no.1
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    • pp.59-64
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    • 2016
  • This paper aims at the prototype-making of the intelligent switchgear with arc fault diagnosis function required to prevent the electrical fire. The main control unit of the intelligent switchgear consists of a single-phase power management device and a arc fault diagnosis device. The prototype of the single-phase power management device and the prototype of the arc fault diagnosis device in this paper. In the device, the cooperation function with the arc fault diagnosis device is developed to transmit the cause of the electrical fire to the remote server system.

Differences in Health Promoting Lifestyle Behavior of Health Management Students Based Upon Early Diagnosis Coverage in a Cancer Course

  • Ozveren, Husna;Cerit, Birgul;Ertop, Nesime Guzel
    • Asian Pacific Journal of Cancer Prevention
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    • v.14 no.10
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    • pp.5769-5773
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    • 2013
  • Background: This is a descriptive study to determine whether coursework that is focused on early diagnosis in cancer makes a difference in self-reported health promoting lifestyle behavior of students who study health management. Materials and Methods: The population of the study consisted of a sample of 104 students enrolled in the Department of Health Management at the Faculty of Health in Kirikkale University in Turkey. Forty-eight students enrolled in a course called "Early Diagnosis of Cancer" and fifty-six did not take this course. Demographic information was collected and the "Health Promotion Life-Style Profile (HPLP)" was used to collect health promotion data. Frequency and descriptive statistics including one-way ANOVA, Mann-Whitney U test, Kruskal Wallis tests were used to evaluate data. Results: The HPLP mean score of the students was found to be $127.5{\pm}17.45$. The highest mean score was observed for self-fulfillment and health responsibility, while the lowest was for diet and exercise sub-scales. It was found that certain variables were effective in developing health promoting lifestyle behaviors such as choosing this job voluntarily, working status of father and participation in social activity (p<0.05). In conclusion, it was found that the students had moderate levels of health promoting lifestyle behavior and they should be supported in terms of diet and exercise.

Diagnosis of Coronary Artery Disease Using Myocardial Perfusion SPECT (심근 SPECT를 이용한 관상동맥질환의 진단)

  • Won, Kyoung-Sook;Kim, Hae-Won
    • Nuclear Medicine and Molecular Imaging
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    • v.43 no.3
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    • pp.196-202
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    • 2009
  • Myocardial perfusion scintigraphy is currently by far the most commonly performed cardiac nuclear study, constituting approximately one third of all nuclear medicine procedure. It plays an important role in the diagnosis, prognosis, risk assessment and management of heart disease. Aim of this review is to describe recent evolution of myocardial perfusion imaging on the focus of diagnosis of coronary artery disease. In addition, current status of other imaging modalities will be reviewed.

Design of Web based Remote Monitoring & Diagnosis System for Machine Tool (Web based 공작기계 원격감시.진단시스템 설계)

  • 김동훈;김선호;이은애;한기상;권용찬;김주한
    • Proceedings of the Korean Society of Precision Engineering Conference
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    • 2000.05a
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    • pp.1005-1010
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    • 2000
  • Internet service has widely used in office automation such as, manufacturing management purchase, and material resource. Nowadays, factory automation and shop floor control system including CAD/CAM department need a web based monitoring and diagnosis to achieve global collaboration and tole-service. This raper deal with design of web based remote monitoring and diagnosis system which concerned with open architecture controller for machine tool.

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Direct Costs of Cervical Cancer Management in Morocco

  • Berraho, Mohamed;Najdi, Adil;Mathoulin-Pelissier, Simone;Salamon, Roger;Nejjari, Chakib
    • Asian Pacific Journal of Cancer Prevention
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    • v.13 no.7
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    • pp.3159-3163
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    • 2012
  • Background: For cervical cancer the epidemiological profile is poorly known in Morocco and no data is available concerning the direct medical costs. The purpose of this work is to estimate the direct cost of medical management of invasive cervical cancer during the first year after diagnosis in Morocco. Methods: The estimation of direct costs of medical management of invasive cervical cancer during the first year after diagnosis in Morocco is based on the estimation of individual cost in each stage which covers diagnosis, treatment and follow-up during first year. The cost was estimated per patient and whole cycle-set using the costs for each drug and procedure as indicated by the Moroccan National Agency for Health Insurance. Extrapolation of the results to the whole country was used to calculate the total annual cost of cervical cancer treatments in Morocco. Results: Overall approximately 1,978 new cases of cervical cancer occur each year in Morocco. The majority (82.96%) of these cases were diagnosed at a late stage (stageII or more). The cost of one case of cervical cancer depends on stage of diagnosis, the lowest cost is $382 for stageCis followed by the cost of stageIA1 for young women (< 40 years) which is $2,952. The highest cost is for stageIV, which is $7,827. The total cost of cervical cancer care for one year after diagnosis is estimated at $13,589,360. The share allocated to treatment is the most important part of the global care budget with an annual sum of $13,027,609 whereas other cost components are represented as follows: $435,694 for annual follow-up activity and $126,057 for diagnosis and preclinical staging. Conclusion: This study provides health decision-makers with a first estimate of costs and the opportunity to achieve the optimal use of available data to estimate the needs of health facilities in Morocco.

The Defect Diagnosis Process Model Utilizing BPMN Modeling Method in the Apartment Housing (BPMN 모델링 방식을 활용한 공동주택 하자진단 업무프로세스 모델)

  • Jung, Ryeo-Won;Kim, Kyung-Hwan;Lee, Jeong-Seok;Kim, Jae-Jun
    • Journal of the Korean housing association
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    • v.26 no.2
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    • pp.67-79
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    • 2015
  • As the Korean construction market in the apartment housing has changed to a housing consumer focused market, interest and importance on efficient use and management on existing buildings has increased rather than demand for new buildings. Interest of housing consumers on apartment house quality has increased in this market paradigm, and this spontaneously is connected to quality flaw related defect disputes and lawsuits that the importance of defect diagnosis has continuously increased. This defect diagnosis is directly connected to maintenance charges in defect dispute and lawsuit processes that rather objective and highly credible progress of duty is required. However, most defect diagnosis firms today that progress defect diagnosis are using different diagnosis methods and depend on the experience of experienced professionals that there is no standardized defect diagnosis process. Therefore, the purpose of this study is to provide common defect diagnosis process model for defect diagnosis firms utilizing the BPMN (Business Process Modeling Notation) modeling method. It is expected that this will contribute to professional and reliable task performances of concerned defect diagnosis workers. Furthermore, it is expected that design lawsuit damage will be substantially reduced by standardizing defect diagnosis processes.

Recent Trend on Condition Monitoring Technology of Insulating Machine in Metro (도시철도 절연기기 모니터링 기술 현황)

  • Park, Young;Jung, Ho-Sung
    • Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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    • 2008.11a
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    • pp.380-381
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    • 2008
  • This paper consider the condition monitoring technology of electrical machine in metro substation need for efficient and effective management and diagnosis. Developing management system using condition monitoring system is very competitive field, and still to a great extent seen as an unnecessary cost. There are several approaches to maintenance management in urban transit such as reliability-centered maintenance, availability-target maintenance and preventive maintenance to advanced approaches involving condition monitoring techniques. In this paper we give a brief introduction to condition-based management and diagnosis in metro substation and which management system satisfying various demanding in railway.

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Design the Expert Systems for the Stroke Early Diagnosis based in Web Environment (Web환경기반의 뇌졸중 초기진단 전문가시스템 설계)

  • 이주원;정원근;박성록;이건기
    • Proceedings of the IEEK Conference
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    • 2002.06e
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    • pp.269-272
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    • 2002
  • In this study, we designed the expert system for the diagnosis of stroke. The causes of stroke in central nervous systems are very diverse, so a doctor who treats the patients with stroke must have the expert knowledge for the quick and correct diagnosis and for the adequate medical management. But the primary physician who engaged in the primary care of the patient with stroke does not have the export knowledge for the stroke. So, we need to develop the expert system for assisting the diagnosis of stroke. Also the diagnosis system can be used as simulator for the medical students who study the neurology. In this study, we developed the diagnosis expert system that offer a pathological name provided by artificial neural networks. And we designed the inference engine and interfaces. The artificial neural network is a system that provide a possible diagnosis of stroke. We implemented the system using Windows2000 Server, IIS5.0 and ASP.

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Looking beyond Piriformis Syndrome: Is It Really the Piriformis?

  • Shivam Sharma;Harmanpreet Kaur;Nishank Verma;Bibek Adhya
    • Hip & pelvis
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    • v.35 no.1
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    • pp.1-5
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    • 2023
  • Piriformis syndrome is a common differential diagnosis related to sciatica. The following review provides a concise synopsis of the diagnosis, management, history, and alternatives to diagnosis of piriformis syndrome. A search of the literature for research articles related to piriformis syndrome and associated differential diagnosis of sciatica was conducted. A thorough review of the included articles found that the condition known as piriformis syndrome is over-diagnosed and that potential anatomic and biomechanical variations originating in the pelvic region might be related to the complaint of sciatica. The criteria for diagnosis are based on findings from both physical examination and radio imaging. Piriformis syndrome resembles a variety of clinical conditions; therefore, conduct of future studies should include development of a validated method for evaluation as well as clinical criteria for diagnosis of piriformis syndrome.