• Title/Summary/Keyword: Work Procedure

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A Study on the Productivity Analysis of Finishing Works on Super High-rise Mixed_use Building (초고층 주상복합 건축물 마감공사의 공종별 생산성 비교에 관한 연구)

  • Hong, Bo-Bae;Kim, Yong-Man;Kim, Ju-Hyung;Kim, Jae-Jun
    • KIEAE Journal
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    • v.10 no.5
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    • pp.165-170
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    • 2010
  • Super high-rise mixed use buildings require a longer period for construction. Especially finishing work takes up about 40% of the whole construction period. Thus, finishing work is becoming an important factor in determining the construction period along with earth work and frame work. As the expected returns added by the reduction of the period and cost in constructing super high-rise mixed use buildings are huge, the expectations are now increasing for the possible gains. In this respect, as the period of finishing work is easier to be shortened than that of frame work, the efforts to acquire the technical knowledge to reduce the finishing work period are now being required. Accordingly, in this study, we aimed at suggesting the basic data for designing an economic plan for finishing-work procedure by analyzing the productivity of each work type of finishing work procedure on the basis of the execution and results of a construction method as a time-flexible finishing work plan. For this, we categorized the work types of finishing work procedure into each work unit and provided a work-system for each of them. Also, with case studies, we calculated the detailed amounts of the work-loads, required materials, productivity, and productivity index of the main work types of finishing work procedure and each of their separate work units as well as analyzed the relationship between the value results to suggest a better way to improve its productivity.

Devising a Training Method for Assembly Work by Employing Disassembly

  • Ichikizaki, Osamu;Kubota, Ryou;Komori, Toshikazu;Matsumoto, Toshiyuki;Erikawa, Akihiro
    • Industrial Engineering and Management Systems
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    • v.12 no.4
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    • pp.368-379
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    • 2013
  • Efficiency in work training is a perennial issue due to high-diversity low-volume production, particularly for manufacturers producing office machines which are manually assembled by workers. To reduce the training cost, parts used in training are usually reused; a trainer disassembles a product assembled by a worker in training. This paper proposes a training method that employs disassembly usually performed by a trainer. This method assigns both assembly and disassembly to a worker in training, in contrast to the conventional method. The effectiveness of the proposed method is experimentally discussed in terms of learning assembly motions and work procedure at each learning stage, namely, "undergoing learning," "immediately after learning," and "seven days after learning." The effectiveness of the training method is confirmed. The method improves the stability of work procedure recollection immediately after training. Furthermore, at seven days after training, it improves retention of the assembly motions and work procedure, and also promotes and maintains memory related to product structure.

Development of EPC Business Process Management Model for Improving Plant Project Management (플랜트프로젝트 사업관리 업무절차 개선을 위한 EPC 수행단계별 BPM모델 개발)

  • Park, Bum-Jin;Lee, Min-Jae;Lee, Tai-Sik
    • Korean Journal of Construction Engineering and Management
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    • v.9 no.5
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    • pp.149-158
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    • 2008
  • Plant construction is being a motive power of national economic growth, because it is a higher value-added business which has enormous influence through other industry. But, plant projects management of the domestic company was poor. So, the development of EPC Business Process Management method has been encouraged. Therefore, this paper performed several researches for setting up the EPC Business Process Management Model for improving plant project management. And the details are as follows. First of all, this study collected the work procedure manuals of 12 large-sized international construction companies. Secondly, from the analyzing gathered EPC work procedure manuals, issues of work procedure manuals were analyzed and improvement plans were drawn out. Basis on this, This study presents a method to improve project management for EPC plant project. 'The Work Procedure Matrix for EPC Management' and 'Key Unit Works for EPC Management' were drawn out by using overseas construction management theories and international regulations. In addition, 'The EPC Business Process Management Models' reformed to the Business process method, that is the set of specifications, documents and procedures used to manage the EPC plant project. And it describes how the EPC work procedure manuals will be used. Finally, this study suggests the model of EPC Business Process Management System. The framework of Plant project management can be clarified by using 'The Work Procedure Matrix'. And 'Key Unit Works' are used to organize the work procedure needed to improve plant projects management. The results of this study will help to improve in project management efficiency for plant construction.

A Proposition on Reasonable Termination Procedure in Remaining-oil Recovery Work from a Sunken Tanker in Korean Territory (국내 침몰유조선 잔존유 회수작업의 합리적 종료절차 제안)

  • Kang, Kwang-Gu;Shim, Yoo-Taek;Kang, Sin-Young
    • Journal of Navigation and Port Research
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    • v.38 no.4
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    • pp.379-384
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    • 2014
  • In case of sunken tankers, remaining-oil recovery operation should be conducted due to possible oil spill accident. However, the deep sea operation make difficulties in checking the completion of remaining oil recovery process, therefore the work termination procedure is very important. In this paper, a reasonable work termination procedure through the comparison and analysis of two cases(Youil No.1 and Osung No.3, Kyung-Shin) which were performed in different method, using disparate equipment. By investigating previously applied methods and techniques, work speed, safety and expenses were compared. The proposed ending procedure of the remaining-oil recovery project is to recover the remaining oil from each cargo tanks and to clean up such tanks whilst an independent surveyor proceeds to a confirmation procedure whereby said surveyor checks out whether any remaining oil exists by putting a stick in each cleaned up tanks and opening up the hatch cover of the tanks or the top place of the tanks to confirm the cleanness of oil. Such procedure shall be done through discussion by the ordering party, contractor and the independent surveyor all together with a flexible application.

A study on the Risk Assesment Procedure for Work in the Operational Railway (철도운행선 공사의 위험도 평가절차 수립 연구)

  • Wang, Jong-Bae;Park, Ju-Nam;Park, Chan-Woo;Kwak, Sang-Log
    • Proceedings of the KSR Conference
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    • 2006.11b
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    • pp.1037-1045
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    • 2006
  • In this study, a hazard analysis was performed on the accident related work in the operational railway during 2000-2006 years in order to establish risk assesment procedure for work in the operational railway. As a result of hazard analysis, various hazard events for person accident and operation incident were identified, and risk for the each events was evaluated. Also risk matrix was structurized for setting the risk control criteria.

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Developing a Work Procedure for Efficient Map Generalization (효율적인 일반화 자료처리를 위한 작업공정 개발)

  • Choi, Seok-Keun;Kim, Myung-Ho;Hwang, Chang-Sup
    • Journal of the Korean Association of Geographic Information Studies
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    • v.6 no.3
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    • pp.73-82
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    • 2003
  • This paper proposes a work procedure for generalizing large-scale digital maps ver. 2.0(1/5,000) into a small-scale digital map(1/25,000). Unlike a existent digital map, the digital map ver. 2.0 has a variety of attribute data as well as graphic data. To perform an efficient map generalization with these structural properties, we establish a work procedure as follow; firstly, delete layers which don't exist in small-scale digital map's feature code, and secondly, generalize features which have been classified into 8 layers, and finally merge 8 layers which have been generalized into 1 layer. Therefore, we expect that a work procedure which is proposed in this paper will play a fundamental role in automated generalization system and will contribute to small-scale digital mapping and thematic mapping.

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PROCEDURE FOR APPLICATION OF SOFTWARE RELIABILITY GROWTH MODELS TO NPP PSA

  • Son, Han-Seong;Kang, Hyun-Gook;Chang, Seung-Cheol
    • Nuclear Engineering and Technology
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    • v.41 no.8
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    • pp.1065-1072
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    • 2009
  • As the use of software increases at nuclear power plants (NPPs), the necessity for including software reliability and/or safety into the NPP Probabilistic Safety Assessment (PSA) rises. This work proposes an application procedure of software reliability growth models (RGMs), which are most widely used to quantify software reliability, to NPP PSA. Through the proposed procedure, it can be determined if a software reliability growth model can be applied to the NPP PSA before its real application. The procedure proposed in this work is expected to be very helpful for incorporating software into NPP PSA.

Supportive Behavior of Parents and Nurses During Children's Invasive Procedure (아동의 침습적 처치시 부모와 간호사의 지지행위)

  • Song, So-Hyeon
    • Journal of Korean Biological Nursing Science
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    • v.8 no.2
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    • pp.73-92
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    • 2006
  • Purpose: This study was to understand actual state of supportive behavior of parents and nurses during invasive procedure for children who visit emergency medical center. Method: The object group was children's parents who have from 0 to 7 aged children takes invasive procedure except neonates and nurses who take part in the invasive procedure. Among them, 80 children's parents and 31 nurses were selected. For data analysis, SPSS for Window 8.0 was used and especially content analysis was performed for concrete supportive behavior of parents and nurses by survey. Results: Supportive behavior of parents and nurses during children's invasive procedure gave negative influences to the children, because most parents supplied poor supportive behavior without preparation, nurses performed work-oriented and treatment-oriented nursing due to speciality and busy business in emergency medical center. Conclusion: To lead positive and affirmative supportive behavior of parents and nurses during children's invasive procedure, for parents, positive supportive behavior ability must be strengthen through the overall education about children's invasive procedure when they visit emergency medical center or go to hospital: for nurses, hospital must provide successive instruction and policy to make nurses perform not work-oriented but patient-oriented nursing and positive supportive behavior.

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On the Development of Requirements and Test and Evaluation Procedure for Improving the Work Environment of Locomotive Cabs (철도차량 운전실의 작업환경 개선을 위한 요건관리 및 시험평가 방안에 관한 연구)

  • Kim, Young Min;Park, Chan Woo;Lee, Jae-Chon
    • Journal of the Korea Safety Management & Science
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    • v.15 no.4
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    • pp.63-72
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    • 2013
  • Recent trends in rail industry can be characterized by the multifunctionality and very high-speed modes of operations. In particular, the adoption of the unmaned or operatorless operations has been getting increased attention in which case ensuring systems safety is crucial. On the other hand, according to the result of analyzing rail accidents, the human/operator errors have turned out to be one of the key causes of the accidents. Therefore, the effort of improving the work environment of locomotive cabs is quite necessary in order to decrease the accidents. The objective of this paper is studying on how to incorporate the factors related to the train operators in the design of the locomotive cabs and also on how to evaluate the design results obtained, which is subsequently reflected in the generation of the test and evaluation procedure. The approach taken is based on systems engineering, yielding the procedure document as a result. The results obtained in the paper can be useful in confirming the design of locomotive cabs utilizing the domestic human/operator measure. Also, the way of achieving the objectives can be utilized to cover the expanded rail systems development with appropriate design activities added.

A Study on Improvement of Architectural Design Process on the Interface in Designing of Power Plant (발전플랜트 설계 인터페이스 중심의 건축설계절차 개선에 관한 연구)

  • Lee, Gang-Ok;Kim, Da-Hee
    • Journal of the Korean Society of Industry Convergence
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    • v.23 no.1
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    • pp.9-15
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    • 2020
  • The cooperation with other work types and designing procedure in plant industry and engineering showed clear differences from general construction industries. Current problems are that design's consistency is reduced because of the false system of interface and it ultimately causes frequency changes of design and delayed submission of final book. To solve the problems, the improvements of designing procedure were studied by focusing on the field of architectural designing and the range was limited from power plant construction industry to engineering designing field. If combining GA with the field of architectural designing and receiving data previously, it's possible to conduct expectable designing on small changes in the future, so it's expected to improve greatly cooperation with interface among the work types of power plant engineering received previously from the aspect of consistency. For the application of designing tool, a checklist, interim check will be conducted if progressed by list's division in the designing procedure, not book's completing period. In the interface among the designing work types, direct confirmation and revision must be conducted. In case of 3D modeling, the reflection of input data must be conducted from the basic designing so as to solve interferences intensively.