• 제목/요약/키워드: Material management

검색결과 3,225건 처리시간 0.032초

장외영향평가 및 공정안전관리제도의 통합 안전환경관리방안에 관한 연구 (Offsite Consequence Analysis and safety management system process integration plan of safety management system)

  • 김동준;이인복;문진영;천영우
    • 대한안전경영과학회지
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    • 제18권3호
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    • pp.63-70
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    • 2016
  • The main point of this study is to find out duplicates and differences among various regulations from different organizations. Also, it focuses on creating a reasonably unified regulation system to standardize safety & environment management. In this study, I analyzed the commonalities and the differences of two systems which are typical korean Process Safety Management System and off-site Consequence Analysis. It is confirmed that there are 25 species of overlapped material of those two systems and assessment like handling material information, facilities lists, hazardous substances and list of machine power. Process safety report focuses on onsite workers and facility protect. On the other hand, off-site Consequence Analysis focuses on design, arrangement and management of handling facility from off-site influence. I found difference two system of Enforcement purposes and way. Contradiction of Harmful information of Chemicals Control Act and occupation safety and health acts from same material. To be specific, There are no unit rule of occupation safety and health acts. so it permit inch, psi etc. But Chemicals Control Act provides that m, Mpa units. Therefore, Each regulatory duplication of items for chemicals management, standardization is writing so that you can coordinate overlapping items in the measures the need to be presented.

Influence Factors and Management based on Phase of Building Construction for the Improvement of Post Occupancy Indoor Air Quality

  • Lim, Hyoung-Chul
    • 한국건축시공학회지
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    • 제11권6호
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    • pp.576-586
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    • 2011
  • In recent years, pollution in residential spaces has been a significant area of concern. In particular, the indoor air quality (IAQ) of an apartment building before occupancy, which is related to the interior material, is a serious problem. Unlike previous research, which has mainly focused on pollution control after construction, this study has derived influencing factors and priority of management with a controlling schedule for IAQ. The objectives of this research are 1) control of schedule or improvement of management for IAQ, 2) distribution of responsibility to the parties concerned (factory, material company, construction company, design and engineering, occupancy). The results show the relative priority of the four major items in wall?based apartment buildings and in column?based apartment buildings. An analysis of the parties responsible for improvement based on the IAQ results shows more efforts to improve IAQ are needed in material factories and engineering/design companies.

Research and Development of RFIC Technology in Smart Temperature Information Material

  • Chang, Chih-Yuan;Hung, San-Shan;Chang, Yu-Chueh;Peng, Yu-Fang
    • Journal of Construction Engineering and Project Management
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    • 제1권1호
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    • pp.18-23
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    • 2011
  • Conservation of energy and fuel is the trend in smart building design. Radio Frequency Integrated Circuit (RFIC) technology is often used in temperature sensing and signal transmission to manage indoor temperature, but it is rarely applied to the shell of the building. Heat retention and poor insulation in building shells are the largest causes of high energy consumption by indoor air conditioning. Through combining RFIC technology with temperature sensors, this study will develop smart temperature information material that can be embedded in concrete. In addition to accurately evaluating the effectiveness of shell insulation material, the already-designed Building Physiology Information System can monitor long-term temperature changes, leading to smarter building health management.

RFID-PPS (Radio Frequency IDentification-Pallet Pool System) 사례연구 (A Case Study on RFID-PPS(Radio Frequency IDentification-Pallet Pool System))

  • 안종윤;양광모;진향찬;강경식
    • 대한안전경영과학회:학술대회논문집
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    • 대한안전경영과학회 2004년도 춘계학술대회
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    • pp.303-307
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    • 2004
  • Is not used by consistency transport at transport of freight nothing but is using Pallet only by pedestal when work palletized unit load or materials handling when keep simplicity receptacle which fill raw material or product in factory in our country. Therefore, pallet that is most important function of Pallet is not empled circulation to end consumer from manufacturing plant which is circulation process whole path being done and factory. It is real condition stopping only in extremely determinate part process use of warehouse back. Additionally, it is possible to figure out the flow of all the materials loaded on the RFID pallet; product, material, raw material immediately, so that epoch-making management is possible and it contributes to the reduction of logistics cost because there are little loss or outflow of pallet. The materials flow is getting speedy and inventory is decreasing in the logistics process, and also bad inventory and loss problems are prevented. As a result, not only logistics cost of company but also national logistics cost is decreased. Thus it contributes to the strength of national competitiveness.

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공사현장 자재관리 자동화를 위한 영상기반 인공지능 모델개발 (Development of Image-Based Artificial Intelligence Model to Automate Material Management at Construction Site)

  • 신윤수;김준희
    • 한국건축시공학회:학술대회논문집
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    • 한국건축시공학회 2021년도 가을 학술논문 발표대회
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    • pp.221-222
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    • 2021
  • Conventionally, in material management at a construction site, the type, size, and quantity of materials are identified by the eyes of the worker. Labor-intensive material management by manpower is slow, requires a lot of manpower, is prone to errors, and has limitations in that computerization of information on the identified types and quantities is additionally required. Therefore, a method that can quickly and accurately determine the type, size, and quantity of materials with a minimum number of workers is required to reduce labor costs at the construction site and improve work efficiency. In this study, we developed an automated convolution neural network(CNN) and computer vision technology-based rebar size and quantity estimation system that can quickly and accurately determine the type, size, and quantity of materials through images.

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RESEARCH AND DEVELOPMENT OF RFIC TECHNOLOGY IN SMART TEMPERATURE INFORMATION MATERIAL

  • Chih-Yuan Chang;San-Shan Hung;Yu-Chueh Chang;Yu-Fang Peng
    • 국제학술발표논문집
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    • The 4th International Conference on Construction Engineering and Project Management Organized by the University of New South Wales
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    • pp.480-486
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    • 2011
  • Conservation of energy and fuel is the trend in smart building design. Radio Frequency Integrated Circuit (RFIC) technology is often used in temperature sensing and signal transmission to manage indoor temperature, but it is rarely applied to the shell of the building. Heat retention and poor insulation in building shells are the largest causes of high energy consumption by indoor air conditioning. Through combining RFIC technology with temperature sensors, this study will develop smart temperature information material that can be embedded in concrete. In addition to accurately evaluating the effectiveness of shell insulation material, the already-designed Building Physiology Information System can monitor long-term temperature changes, leading to smarter building health management.

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자재조달문제에 있어 z-변환의 응용

  • 장하복;유정호
    • 한국경영과학회:학술대회논문집
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    • 대한산업공학회/한국경영과학회 1991년도 춘계공동학술대회 발표논문 및 초록집; 전북대학교, 전주; 26-27 Apr. 1991
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    • pp.357-365
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    • 1991
  • Military material-supply problem is one of the most important logistic problems under conscription system. Formally, two approaches were followed lowed to this problem. (1) Needs for material per soldier is estimated by past experience. The total demand for the material is estimated by multiplication of this coefficient and the number of soldiers given in the governmental programme. (2) The total demand for the material is estimated by the forcast based on the past statistics. The material supply system based on these estimates, however, relies too much on past statistics ;lack of flexibility is feared to adapt itself to changes in conscription programme, life-time of materials and so on. In this paper, the author has followed new approach : The conscription system itself is a linear input-output system, in which sequences of enlistment and dischargement are regarded as input and output. And the sequencial demands for the material are related by another linear transformation to the former sequences. In this regard z-transformation is applied to construct to transfer functions associated with this system. With these transfer functions, methods are established to determine the material demand corresponding to conscription programme and life-time distribution. Numerical methods by computers are also prepared.

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온라인 기술이전정보의 통합 콘텐츠 관리체제 구축에 관한 연구 (A Study for Establishment of Integrated Contents Management System for Online Technology Transfer Information)

  • 서진이;임대현;정혜순
    • 정보관리연구
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    • 제36권1호
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    • pp.155-171
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    • 2005
  • 온라인 기술이전시장은 단순한 기술 수요자와 공급자가 만나는 자리일 뿐만 아니라 기술이전 관련 정보를 제공함으로써 기술이전에 있어서 그 시간적, 물리적 비용을 줄이는 데 그 존재의 이유가 있다. 기술이전시 정보제공에는 시의성이 중요한 요인으로 작용하므로 이를 효율적으로 관리하기 위한 콘텐츠 통합관리 시스템이 요구된다. 종래의 온라인 기술이전정보 제공 사이트는 단순한 기술정보의 제공과 수시로 발생하는 기술판 매자나 수요자의 갱신상황을 반영하지 못하고 있다. 이에 본 연구에서는 기술수요자나 기술공급자에게 보다 시의적절한 정보를 제공할 수 있는 방안을 제시하기 위하여 온라인 기술이전정보 통합 시스템에 대한 구현의 예를 제시하고자 한다.

A DEVELOPMENT OF INTELLIGENT CONSTRUCTION LIFT-CAR TOOLKIT DEVICE FOR CONSTRUCTION VERTICAL LOGISTICS MANAGEMENT

  • Chang-Yeon Cho;Soon-Wook Kwon;Tae-Hong Shin;Sang-Yoon Chin;Yea-Sang Kim;Joo-Hyung Lee
    • 국제학술발표논문집
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    • The 3th International Conference on Construction Engineering and Project Management
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    • pp.242-249
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    • 2009
  • High-rise construction sites, especially those situated in spatially constrained urban areas, have difficulties in timely delivery of materials. Modern techniques such as Just-in-time delivery, and use of information technology such as Project Management Information System (PMIS), are targeted to improve the efficiency of the logistics. Such IT-driven management techniques can be further benefited from state-of-the-art devices such as Radio Frequency Identification (RFID) tags and Ubiquitous Sensor Networks (USN), which has resulted in notable achievements in automated logistics management at the construction sites. Based on those achievements, this research develops USN hardware toolkits for construction lifts, which aims to be automated the vertical material delivery by sensing the material information and routing it automatically to the right place. The gathered information from the sensors can also be used for monitoring the overall status. The developed system will be tested in the actual high-rise construction sites to assess the system's feasibility. The proposed system is being implemented using Zigbee communication modules and RFID sensor networks which will communicate with the intelligent palette system (previously developed by the authors). To support the system, a lift-mountable intelligent toolkit is under development. Its feasibility test will be conducted by applying the implemented system to a test bed and then analyzing efficiency of the system and the toolkit. The collected test data will be provided as a basis of autonomous vertical transport equipment development. From this research, efficient management of the material lift is expected with increased accuracy, as well as better management of overall construction schedule benefited from the system. Further research will be expected to develop a smart construction lift, which will eliminate the need for human supervision, thus enabling a real 'autonomous' operation of the system.

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