• 제목/요약/키워드: Monitoring Study

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비측량용 사진기에 의한 정밀기계부품의 monitoring에 관한 연구 (A Study on the Monitoring of the parts of Precision Machine using Non-Metric Camera)

  • 강준묵;우원진;배연성
    • 한국측량학회지
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    • 제9권2호
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    • pp.73-80
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    • 1991
  • 형상이 복잡한 정밀기계 부품은 설계시의 선형과 제작후의 선형에 대한 검증이 필수적이므로 정밀계측에 의한 신뢰성 있는 monitoring은 중요한 의미를 지니고 있다. 본 연구에서는 plumb line method로 왜곡보정한 비측량용 사친기로 정밀기계 부품인 스크류우에 대해 초근접 사진 측량을 실시하여 tortion, offset, section, thickness 등의 3차원적 변화를 정밀 해석하였다. 연구결과 비측량용 사진기에 의한 정밀기계 부품의 monitoring을 효율적으로 실시할 수 있었으며, 이의 적용 가능성을 제시할 수 있었다.

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GPS를 내장한 위치추적 데이터로거 시스템의 철도 계측 적용성 연구 (A Study of Monitoring Measurement using Global Positioning Digital Datalogger System for Railway Structures)

  • 이승원
    • 한국철도학회:학술대회논문집
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    • 한국철도학회 2010년도 춘계학술대회 논문집
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    • pp.2002-2007
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    • 2010
  • The objective of this study is the developement monitoring measurement using global positioning digital datalogger system for monitoring measurement of railway construction sites. For the replacement of current passive data communication, Global positioning digital datalogger system using active communication is studied for the first time with in a country. Therefore data communication method and analyzing program of automatic measurement data is developed for the global positioning automatic digital datalogger system. The results of this study will be using real time automatic monitoring measurement of railway structures.

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주요국의 에너지효율등급제 사후관리 사례 분석 (A Case Study on the post-monitoring programs under the energy efficiency labeling program)

  • 임기추
    • 에너지공학
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    • 제23권3호
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    • pp.58-65
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    • 2014
  • 에너지효율등급제 사후관리의 국외 시행사례에 대해서 분석해 보았다. 이를 바탕으로 국내 사후관리제에 대한 시사점을 제시하였다. 첫째, 사후관리 위반정도가 심한 제품의 모델수 확대 및 반복적 위반업체의 해당모델에 대해 지속적으로 포함하고, 판매시장에서 구입하는 방식으로 적용되어야 할 것이다. 둘째, 사후관리 대상모델에 대한 점검결과를 반영하여 위반 발생빈도에 따라 제품별 사후관리 점검방식의 개선을 강구하는 것이 바람직하다. 셋째, 사후관리 점검결과 부적합율 또는 반복적 위반사례가 지속되는 경우 수시점검의 실시가 필요하다. 끝으로, 사후관리 점검결과에 대한 현재 관보 게재 및 보도자료 공개에서 사후관리 전과정에 대한 상세보고서까지 관계 유관기관에 공고 및 인터넷 공개로 확대하는 것이 요청된다.

청소년기의 부모감독 변화에 대한 부모애착의 효과 (Effects of Adolescents' Attachment to Their Parents on the Longitudinal Changes in Parental Monitoring)

  • 정윤주
    • 가정과삶의질연구
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    • 제32권1호
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    • pp.1-12
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    • 2014
  • The purpose of this study was to examine: (1) whether the level of parental monitoring changes during adolescence; (2) if it changes, what is the pattern of the change; and (3) whether the effects of adolescents' attachment to their parents on parental monitoring are dependent on time. Six waves of data from the Korea Youth Panel Study (KYPS) were used to address the research questions. The participants of the KYPS were 3,449 (1,725 boys and 1,724 girls) adolescents who participated in the study once a year for 6 years (from the 2nd grade in middle school until their high school graduation). Latent growth modeling (LGM) was used to analyze the data. The findings are as follows: the level of parental monitoring significantly increased over the six waves of the study, and the adolescents' attachment to their parents was a time-dependent predictor of parental monitoring. The results indicate that the quality of adolescents' attachment to their parents is an important factor that makes a difference in the level of parental monitoring by, possibly, affecting the level of adolescents' disclosure to their parents.

BIM기반의 U-안전모니터링시스템 (A Study on the Ubiquitous Safety Monitoring through Utilizing BIM Technology)

  • 권창희
    • 디지털융복합연구
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    • 제14권6호
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    • pp.61-67
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    • 2016
  • 본 연구는 BIM기반의 U-안전모니터링에 대한 연구가 주된 내용이다. 연구절차는 다음과 같다. 첫째, 연구의 배경 및 필요성과 연구의 목적 및 연구범위, 방법을 제시하였다. 둘째, BIM의 개념을 설명하고 BIM기반의 U-안전모니터링의 선행되어야 할 고려사항이나 조건 등을 조사하였다. 셋째, 수치지도 사업현황파악 및 BIM 기반 U-안전모니터링구축의 필요요건, BIM과 연동되는 U-안전모니터링시스템이 보다 공간을 확장한 지역영속성계획인 DCP의 적용성에 대하여 조사하였다. 넷째, 연구결과를 토대로 미래 U-안전모니터링을 제시하였다. 마지막으로 결론부분에는 DCP기반의 U-안전모니터링의 발전방향에 논하였다.

프로피버스 통신을 이용한 실시간 절삭 상태 모니터링에 관한 연구 (A Study on Real Time Cutting Monitoring using Profibus)

  • 윤상환;조상필;류성기
    • 한국기계가공학회지
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    • 제15권3호
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    • pp.1-7
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    • 2016
  • The cutting processes used for monitoring engineering includes analysis and feedback about strange conditions, tools collision and tools wear in real time, for improving the working ratio of equipment and productivity. In this study, we proposed monitoring using profibus to increase the reliability as the most important factor for cutting monitoring. The profibus can increase the reliability of cutting monitoring for cutting torque of a main spindle motor and a feed motors through PLC-based interface.

LabVIEW를 이용한 풍력발전기 모니터링 시스템 개발 (Development of a Wind Turbine Monitoring System using LabVIEW)

  • 남윤수;김형기;유능수;이정완
    • 한국정밀공학회지
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    • 제20권5호
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    • pp.92-98
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    • 2003
  • A wind turbine monitoring system is essential equipment fur the performance evaluation and mechanical load analysis of a wind turbine. A monitoring system using LabVIEW is developed in this study. This system monitors signals from a meteorological mast, wind turbine generator, and tower. The discrete signals which are sampled at t Hz are automatically saved on a data file in the unit of a day. Besides these basic functions, the developed monitoring system has the other several capabilities. One of them is the information access from a remote PC through the internet. A vision image of the test site area and data files that are produced by LabVIBW software can be uploaded to the main computer located in a remote site. An emergency backup system using UPS fur the power loss on the monitoring HW is also prepared, A detail explanation for the developed wind turbine monitoring system is presented in this study.

토양측정망 운영 결과 분석 연구 (Analysis on Monitoring Results of Korean Soil Monitoring Network)

  • 정승우
    • 한국지하수토양환경학회지:지하수토양환경
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    • 제15권2호
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    • pp.18-23
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    • 2010
  • Usability of soil quality monitoring network for ascertaining soil quality changes was evaluated by analysing soil quality monitoring results. Tolerance limits of soil quality monitoring results from 1997 to 2007 were calculated and compared with Korean soil quality standards. This study determined that soil quality was changed if the upper 95% tolerance limit value was greater than the soil quality standard. Fluoride most frequently exceeded the soil quality standard and nickel, zinc, arsenic, copper, lead and cadmium were followed. Analysis on land use showed that tolerance limits of industrial land use most frequently exceeded the soil quality standards and residential, road and various land uses then frequently exceeded. Tolerance limits of land uses expecting high contaminant loads frequently exceeded the soil quality standards. This fact imply that the soil quality monitoring network generates reasonable data to represent change in Korean soil quality. This study also suggested that representative sampling from well identified points should be done to improve data reliability and accurately ascertain soil quality changes.

Evaluation of the Diagnostic Performance and Efficacy of Wearable Electrocardiogram Monitoring for Arrhythmia Detection after Cardiac Surgery

  • Seungji Hyun;Seungwook Lee;Yu Sun Hong;Sang-hyun Lim;Do Jung Kim
    • Journal of Chest Surgery
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    • 제57권2호
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    • pp.205-212
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    • 2024
  • Background: Postoperative atrial fibrillation (A-fib) is a serious complication of cardiac surgery that is associated with increased mortality and morbidity. Traditional 24-hour Holter monitors have limitations, which have prompted the development of innovative wearable electrocardiogram (ECG) monitoring devices. This study assessed a patch-type wearable ECG device (MobiCARE-MC100) for monitoring A-fib in patients undergoing cardiac surgery and compared it with 24-hour Holter ECG monitoring. Methods: This was a single-center, prospective, investigator-initiated cohort study that included 39 patients who underwent cardiac surgery between July 2021 and June 2022. Patients underwent simultaneous monitoring with both conventional Holter and patchtype ECG devices for 24 hours. The Holter device was then removed, and patch-type monitoring continued for an additional 48 hours, to determine whether extended monitoring provided benefits in the detection of A-fib. Results: This 72-hour ECG monitoring study included 39 patients, with an average age of 62.2 years, comprising 29 men (74.4%) and 10 women (25.6%). In the initial 24 hours, both monitoring techniques identified the same number of paroxysmal A-fib in 7 out of 39 patients. After 24 hours of monitoring, during the additional 48-hour assessment using the patch-type ECG device, an increase in A-fib burden (9%→38%) was observed in 1 patient. Most patients reported no significant discomfort while using the MobiCARE device. Conclusion: In patients who underwent cardiac surgery, the mobiCARE device demonstrated diagnostic accuracy comparable to that of the conventional Holter monitoring system.

일 병원 제2형 당뇨병환자의 자가혈당검사 수행 및 활용 실태 (A Study on the Performance and Utilization of Results of Self-monitoring of Blood Glucose in Type Ⅱ Diabetes)

  • 하정미;김동희
    • 한국간호교육학회지
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    • 제16권2호
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    • pp.330-338
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    • 2010
  • Purpose: This study was conducted to investigate performance of self-monitoring of blood glucose and the utilization of results for people with type II diabetes. Method: Data was collected from 177 patients with type II diabetes using a questionnaire from August to September, 2009. Result: Most participants performed self-monitoring of blood glucose in the correct way while some misused the lancet or test strips. In the utilization of results for self-monitoring blood glucose data, 62% of participants always recorded the data, 46% always understood the cause for hyperglycemia or hypoglycemia, 25% changed their diet, 23% regulated their exercise-amount, and 11% of participants adjusted the drug dosage. There were significant differences in the performance of self-monitoring of blood glucose and the utilization of results according to the characteristics in the self-monitoring subjects such as awareness of HbA1c, target fasting glucose level, target fasting glucose level 2 hours after meal etc. Conclusion: Systemic self-monitoring of blood glucose education which includes the utilization of self-monitoring of blood glucose needs to be developed for type II diabetic patients.