• 제목/요약/키워드: Repair facility

검색결과 145건 처리시간 0.035초

유아교육기관의 실내 환경 안전 실태에 관한 연구 (A Study on the condition of Indoor environmental safety in kindergarten)

  • 최은진;한혜련
    • 한국실내디자인학회:학술대회논문집
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    • 한국실내디자인학회 2008년도 춘계학술발표대회 논문집
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    • pp.242-246
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    • 2008
  • This study is to research on the condition of safe environment of kindergartens. This study is to supplement the preceding study which was based only on survey to show the result and analyze the condition and problems of the safety of kindergartens to suggest the basic database of indoor environment that cause accident. First as a theoretical study, we analyze the preceding studies according to the related regulations. And we made checklist based on this and visited and investigated two kindergartens where applied for the case study As the result, we could understand factors that can cause accidents from classroom, corridor, door, stairs, balustrade, toilet, kitchen, front door, and fire exit/shelter. Especially, in case of fire exit/shelter, the whole renewal of kindergarten was necessary which is difficult. But, though it can not be advanced right away, they should try to have facility expansion and repair works gradually. And for more study on this, active cooperation from kindergartens are in need.

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노후화 학교시설의 개축성능 평가에 관한 연구 - 건축 계획적 평가를 중심으로 - (A Study on the Efficiency Evaluation for the School Facilities - Focused on the architectural planning evaluation -)

  • 김승제
    • 교육시설
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    • 제12권6호
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    • pp.56-67
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    • 2005
  • The purpose of this study is to give the detailed evaluation index which is considered by reconstruction and repair for the school facilities on the ground of the efficiency evaluation result in each plan through analyzing the school facilities to every case classified into the evaluation index such as the school site plan, the site plan, the floor plan. On this study through the detailed evaluation index each case to the school facilities is to get the result of the efficiency evaluation. Through analysing the result, to make an alternative plan of the school facilities which are fit in both the new educational process and the educational state is to give it as a guide.

Jerk 함수를 적용한 태양광 스트링 내의 노후화 모듈 검출 기법 (Detection of Aging Modules in Solar String with Jerk Function)

  • 손한별;박성미;박성준
    • 전력전자학회논문지
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    • 제24권5호
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    • pp.356-364
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    • 2019
  • In this study, major problems, such as licensing problems due to civil complaints, deterioration of facility period, and damage of modules, are exposed to many problems in domestic businesses. Particularly, the photovoltaic (PV) modules applied to early PV systems have been repaired and replaced over the past two decades, and a new module-based aging detection method is needed to expand the maintenance market and stabilize and repair power supplies. PV modules in a PV system use a string that is configured in series to generate high voltage. However, even if only one module of the solar modules connected in series ages, the power generation efficiency of the aged string is reduced. Therefore, we propose a topology that can measure the instantaneous PV characteristic curve to determine the aging module in the solar string and the aging judgment algorithm using the measured PV characteristic curve.

공동주택 단위주거 성능유지항목 도출을 위한 시설물 보수이력 분석 (A Study on the History of Housing Unit Maintenance in an Apartment Building for Sustainable Performance)

  • 강지연
    • 한국건축시공학회:학술대회논문집
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    • 한국건축시공학회 2022년도 봄 학술논문 발표대회
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    • pp.222-223
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    • 2022
  • The purpose of the study is to derive maintenance items in dwelling unit of apartment after the liability period for defect security. In according with the Apartment Housing Management, the managers of apartment maintain facilities in public and develop a long-term repair plan. However, Apartment unit housing is a private area and is managed facilities individually by residents or owners. As the facility ages, it is necessary to derive items in dwelling unit of apartment that need to maintain performance. Therefore, this paper analyzed the history of repairing facilities through complaints about rental housing units.

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텍스트 마이닝 기법을 이용한 공동주택 전유부 시설물의 보수원인 분석 (A Study on Cause of Facility Repair in Apartment Units Using Text Mining Techniques)

  • 강지연
    • 한국건축시공학회:학술대회논문집
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    • 한국건축시공학회 2023년도 봄 학술논문 발표대회
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    • pp.269-270
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    • 2023
  • As facilities in apartment unit by age, residents feel uncomfortable in their lives, but maintenance and management are not carried out properly. For the systematic maintenance of facilities, the derivation of facilities that require maintenance shall be preceded. This study aims to derive items that require intensive management among exclusive facilities. The purpose of this study is to analyze the history of repairing facilities through complaints about the exclusive use of public rental housing to identify the cause and to derive items that require intensive management of the exclusive use of apartment houses.

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아파트 하자 보수 시설공사 세부공종 머신러닝 분류 시스템에 관한 연구 (Classifying Sub-Categories of Apartment Defect Repair Tasks: A Machine Learning Approach)

  • 김은혜;지홍근;김지나;박은일;엄재용
    • 정보처리학회논문지:소프트웨어 및 데이터공학
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    • 제10권9호
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    • pp.359-366
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    • 2021
  • 대한민국 건설사들은 아파트 하자 정보를 축적하고 보수작업을 관리하기 위한 시스템을 운영하는데 상당한 인력과 비용을 투자하고 있다. 본 연구에서는 하자 접수 상세내용 텍스트 데이터를 이용하여 하자 보수 시설공사에 따른 세부공종을 분류하는 머신러닝 모델을 제안한다. 두 가지 단어 임베딩(Bag-of-words, Term Frequency-Inverse Document Frequency (TF-IDF))과 두 가지 분류기(Support Vector Machine, Random Forest)를 통해 한국어로 작성된 65만건 이상의 하자 접수데이터로부터 하자보수 시설공사 세부공종을 분류했다. 특히, 이번 연구에서는 특정 시설공사(마감공사)의 9개 세부공종(가전제품, 도배공사, 도장공사, 미장공사, 석공사, 수장공사, 옥내가구공사, 주방기구공사, 타일공사)을 분류하는 이진분류 모델과 다중 분류 모델을 연구했다. 그 결과, TF-IDF와 Random Forest를 사용한 두가지 분류 모델에서 90%이상의 정확도, 정밀도, 재현율 및 F1점수를 확인했다.

공공의료시설에 적합한 신재생에너지시스템의 복합적용비율에 관한 연구 (A Study on the Application Ratio by the New and Renewable Energy Systems Fit for Public Medical Facilities)

  • 홍준호;이용호;조영흠;황정하
    • 한국태양에너지학회 논문집
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    • 제34권2호
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    • pp.32-43
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    • 2014
  • This study set out to identify the importance of each factor influencing facility selection with a survey among public medical facilities under the category of public buildings and apply the importance of economy, technology and environment with the weighting factor method, thus proposing optimal application plans. The research content of each section can be summarized as follows:1) Estimated energy consumption according to the energy simulation was 65,129MWh/yr, which was 18.7% higher than that according to the calculation equation. Of the energy consumption, more than 80% was used by heating and cooling facilities and construction facilities, and 20% was used by electronics such as medical equipments and in and outdoor lighting. 2) The results of a survey on the factors influencing the importance when selecting a new and renewable energy system reveal that the upper items had a priority in economy, environment, and technology in the descending order and that the lower item shad a priority in initial investments, maintenance and repair costs=energy costs, supply reliability, energy efficiency and $CO_2$ emissions in the descending order. 3) The application alternatives were analyzed in economy, technology, and environment. As a result, a geothermal system turned out to be the most excellent one a cross all the upper and lower comparison items. Of the other systems, a solar thermal system was superior in initial investments, maintenance and repair costs, and energy efficiency, where as a photovoltaic system was superior in energy costs, supply reliability, and $CO_2$ emissions. 4) As for the mixed application ratio among economy, technology, and environment, when the percentage of a geothermal system was approximately 80% or higher in anew and renewable energy system, it was the best and most optimal application plan.

FAA와 EASA의 MRO 조직인증제도에 대한 비교연구 (A Comparative Study Between the Approved Maintenance Organizations for MROs of FAA and EASA)

  • 김종복;이진;허희영
    • 한국항공운항학회지
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    • 제25권3호
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    • pp.123-134
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    • 2017
  • In order to advance into the MRO industry, the Aviation maintenance organization with suitable for the standards for personnel, facilities and operations should be first approved by FAA and EASA. The purpose of study is designed to arrange the standards required for personnel, facility, operation rule for approval of Repair Station maintenance organizations certified by FAA PART 145 of the US Federal Aviation Regulation. Also to consider the following differences through the comparative analysis with domestic AMO certification of the information in the Management, Maintenance Process, and Quality System for approval of maintenance organization authorized, the additional EASA PART 145. As a comparative analysis on maintenance organization certification in the country between FAA and EASA, this study could show us that domestic maintenance organization, certified manual contents are used by applying just many of the FAA system. And we could know that as part of the EASA maintenance organization certification process, airmen personnel were relatively systematically segmented and controlled. For domestic maintenance organization certification, operational as policy implications we would like to present policy implications such as the implication of rating system of Aviation Mechanic License like EASA, the financial support of the training center to resolve the shortage of the FAA or EASA license holders, operational organization as "CAMO" for systematic aviation mechanic certified system should be required, continued construction of hangar or MRO for airworthiness repair under Governmental support, and varied application of DER system from FAA accordingly.

Evaluation of Nondestructive Diagnosis and Material Characteristics of Stone Lantern at Damyang Gaeseonsaji Temple Site in Korea

  • Lee, Chan Hee;Araki, Naruto
    • 보존과학회지
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    • 제35권4호
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    • pp.279-293
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    • 2019
  • The stone lantern of the Damyang Gaeseonsaji temple site is a cultural heritage built during the Unified Silla period (AD 868). The reason for its value as a cultural property is due to wittern the background and the period created on inscription of the lamp stone engraved by letters. The stone lantern consists of two types of lithic tuffs for the 23 original properties, the replaced stones in 1991, and the biotite granite for its ground stones replaced in 2005. The lithic tuffs selected as the replacement parts in 1991 and 2017 have been examined and got to properties of hardly exposure moisture as well as very similar geochemical characteristics. There were various types of physical deterioration of the stone properties and structural cracks; in particular, on the northern side of the stylobates. Chemical and biological deterioration can be identified as black, white, and brown discolorations as well as by the presence of lichens, bryophytes, and herbaceous plants. In the evaluation of the physical properties of the stone lantern, the mean and maximum ultrasonic velocities were found to be similar in each direction. However, the lowest velocity on the east and south sides were found to be lower than those of other stone properties. It was found that physical damage to the stylobates resulted from water expansion in a freeze-to-thaw phenomena related to water content. Therefore, dismantling repair was carried out in the protection facility to restrict further water supply to the stone as much as possible.

고속철도 강교량의 부식 피로신뢰성 기반 생애주기비용 분석 (Corrosion Fatigue Reliability-Based Life Cycle Cost Analysis of High-Speed Railway Steel Bridges)

  • 조효남;전홍민;선종완;윤만근
    • 한국철도학회논문집
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    • 제11권1호
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    • pp.107-113
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    • 2008
  • 최근 생애주기비용 분석이 사회기반 시설물 경제성 평가 분야의 필수적 방법으로 대두됨에 따라 체계적이고 합리적인 방법으로 각 시설물의 생애주기비용을 산정하기 위한 노력이 진행되고 있다. 합리적인 생애주기비용 분석을 위해서는 초기비용 뿐만 아니라 유지관리 비용의 예측이 필요하나 국내에서는 고속철도 구간에 강교량을 가설한지 얼마 되지 않았기 때문에 이에 대한 유지관리 특성 등을 파악하고 있지 못한 실정이다. 이에 본 연구에서는 고속철도 소수주형교의 계측데이터와 Rahgozar 등이 제안한 부식열화를 고려한 피로강도감소계수 및 Miner 손상누적법칙을 이용하여 강교량의 주된 열화의 요인이 되는 부식과 피로의 손상을 고려한 체계신뢰성해석을 실시하였다. 이 체계신뢰성 해석결과를 바탕으로 고속철도 소수주형교의 설계단계 생애주기비용 분석 모델을 제안하였다.