• Title/Summary/Keyword: Plant work

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New Perspectives on Plant Defense Responses through Modulation of Developmental Pathways

  • Chung, Kwi-Mi;Igari, Kadunari;Uchida, Naoyuk;Tasaka, Masao
    • Molecules and Cells
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    • v.26 no.2
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    • pp.107-112
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    • 2008
  • Invasion mechanisms of pathogens and counteracting defense mechanisms of plants are highly diverse and perpetually evolving. While most classical studies of plant defense have focused only on defense-specific factor-mediated responses, recent work is beginning to shed light on the involvement of non-stress signal components, especially growth and developmental processes. This shift in focus links plant resistance more closely with growth and development. In this review, we summarize our current understanding of how pathogens manipulate host developmental processes and, conversely, of how plants deploy their developmental processes for self-protection. We conclude by introducing our recent work on UNI, a novel R protein in Arabidopsis which mediates cross-talk between developmental processes and defense responses.

Analysis of the Productivity and Influence Factor for Special-Plant Formwork (특수 플랜트 형틀공종의 생산성 및 영향요인 분석)

  • Huh, Young-Ki;Lim, Jin-HO;Oh, Jae-Hoon
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2013.11a
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    • pp.90-91
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    • 2013
  • In the field of nuclear power construction, management and the systematic construction is very necessary. For more efficiently managing, analysis of influence factors and productivity is indispensable now. On this research, we collected the data from the nuclear power plant which is located in Korea. We analyzed the productivity and influence factors. As a result, productivity was 0.75(㎡/man·hour).On one hand, the productivity should be personnel, weather and whether there is a night duty or not. On the other hand, work crew depends upon operators, formwork amount, the presence or absence of night duty.

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A Study on MES Construction for Automobile Plant in China (중국 자동차 공장의 MES 구축 연구)

  • Lee, Doo-Yong;Zhang, Jing-Lun;Jang, Jung-Hwan;Yoo, Sung-Hee;Lee, Chang-Ho
    • Journal of the Korea Safety Management & Science
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    • v.14 no.4
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    • pp.265-270
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    • 2012
  • This paper deals with the application and effects of MES for H automobile plant in China. There existed the production planning and the different work order in PL painting plant, but we can simultaneously prepare the painting parts and parts delivery and assembly according to painting color by introducing MES. We can respond the change of production planning and operate integratively the PL painting, parts storage and parts delivery and then we can results in reasonable logistics. We obtained the exact production information, correct work order, precise delivery order. We obtained not only the improvement of logistics but also the reduction of inventory.

A basic study on human error proneness in computerized work environment (전산화된 작업환경에서 인간의 오류성향에 관한 기초연구)

  • Jeong, Gwang-Tae;Lee, Yong-Hui
    • Journal of the Ergonomics Society of Korea
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    • v.19 no.1
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    • pp.1-9
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    • 2000
  • This study was performed to investigate some characteristics on human error proneness in the computerized work environment. Our concerning theme was on human error likelihood according to personal temperament. Two experiments were performed. The first experiment was to study the effect of field- independence/dependence on error likelihood. The second experiment was on error proneness. These experiments were performed in information search task. which was most frequent task in computerized work environment such as the control room of nuclear power plant. Ten subjects were participated in this study. Analyzed results are as follows. Field-independence/dependence had a significant effect in both information search time and error frequency. Error proneness had a significant effect in both factors, too. And, a positive correlation was found between error frequency and information search time. These results will be utilized as a basis to study operator's error proneness in the computerized control room of nuclear power plant. later on.

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3-D Graphical Model-Based Design and Control of Automated Equipment (3차원 그래픽 모델에 근거한 자동화 장비의 설계 및 조종)

  • Seo Jongwon;Haas Carl
    • Proceedings of the Korean Institute Of Construction Engineering and Management
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    • autumn
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    • pp.188-191
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    • 2002
  • This paper concerns 3-D graphical modeling and simulation techniques for design and control of automated equipment for construction and facility maintenance. A case study on the use of 3-D graphics techniques for developing a power plant maintenance robot is presented. By simulating equipment operation within the 3-D geometry models of the work environment the environment design was improved. The 3-D graphical models of the equipment and the work environment were further utilized for the control of the robot from a remote distance. By presenting the real-time updated equipment configuration and the work environment to the operator, the graphical model-based equipment control system helped the operator overcome the problems associated with spatial perception. The collision between the robot and the plant structures was also avoided based the real-time analysis of the dynamically updated graphical models.

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A Work Scheduling Based on Analysis of Performance Data (실적자료분석(實績資料分析)에 의(依)한 일정계획(日程計劃))

  • Kim, Dong-Chan;Kim, U-Sik
    • Journal of Korean Institute of Industrial Engineers
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    • v.4 no.2
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    • pp.59-66
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    • 1978
  • This paper is a work scheduling for design of piping Department of chemical plant using accumulated curve. Accumulated curve prepared by analysis of performance data, collected executed manhours for chemical plant of "D" Company during the past two years. It compared scheduled manhours with actual used manhours up to six months, put into the form of figures and charts the results can he summarized as below; 1) It can he found an important factor of critical control thus piping department got 30% of total scheduled menhours. 2) A plan of manpower mobilization can be scheduled before work starting. 3) Project progress can he found easily as put into the form of figures and charts for schedule to actual.

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A Study on Some Issues of Business and Law in relation to ICC Model Turnkey Contract - Focusing on ICC Model Contract for Turnkey Supply of Industrial Plant (ICC모델 턴키 계약의 쟁점에 관한 연구 - ICC Model Contract for Turnkey Supply of Industrial Plant를 중심으로 -)

  • Kim, Kyoung-Ok;Kim, Dae-Hwan
    • THE INTERNATIONAL COMMERCE & LAW REVIEW
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    • v.54
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    • pp.189-209
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    • 2012
  • This Work intends to study on some issues of business and law in relation to Contract for Turnkey Base System. The continuing advance of export system of the plant with the importance for efficient and effective management emphasizes the need for business and legal approach to uniform international model contract. ICC Model Contract for Turnkey Supply of Industrial Plant by ICC covers a particular category of turnkey contract, i.e. contracts for the supply of a plant or production line to be erected within facilities which already exist or which are constructed by the purchaser. Furthermore, the application of the ICC Model Contract for Turnkey Supply of Industrial Plant leaves much to be desired from a business and legal point of view. Therefore, there would appear to be room for compromise between the supplier and purchaser in respect to make a contact for Turnkey supply of industrial plant.

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Development of Parametric Design Tool for Offshore Plant Cable Tray Using PML (프로그램 매크로언어를 이용한 해양 플랜트 케이블 트레이의 파라메트릭 설계 도구 개발)

  • Kim, Hyun-Cheol
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.20 no.2
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    • pp.632-637
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    • 2019
  • The cable tray design of an offshore plant production design is to optimally arrange the 3D modeling so that the cable can be installed without interfering with the structural members and various outfit equipment, and it is performed using a PDMS (Plant design management system), which is a 3D CAD system for an offshore plant layout. This study reviewed the development of PML (Programmable macro language) for a PDMS supporting offshore plant cable tray design and examined the efficiency compared to the existing method. Cable tray design PML developed in this paper enables fully parametric design using electrical outfit template library, allowing a rapid response to frequent modifications due to design changes and minimizing repetitive work fatigue by reflecting the accumulated design experience. In addition, the developed system was applied to the offshore plant structure module and it improved the work efficiency by more than 50% compared to the existing method.

한국산 호밀의 부속염색체의 빈도와 지리적분포

  • 이웅직
    • Journal of Plant Biology
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    • v.6 no.3
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    • pp.15-17
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    • 1963
  • Frequency of accessory chromosomes in populations of rye in Korea was known to be exceedingly high. Cytological observation was carried out in five population of rye in Korea and the result revealed that the frequency is ranged from 39.1 to 53.1%. Although this figure is smaller than the results in previous work carried out by otehr workers, it is still higher than any other region in the world.

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Case Analysis of Risk Assessment for Steel and Iron Works (제철 사업장 위험성평가 사례 분석)

  • Hong, Sung-Man;Park, Peom;Kim, Kwang-Hyoun
    • Journal of the Korea Safety Management & Science
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    • v.12 no.1
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    • pp.11-18
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    • 2010
  • In the steel industry, steel is manufactured and processed to produce a variety of steel products. The industry provides fundamental materials to the whole range of industries including car, ship, electric appliance and construction industries, so that it is very important as an infrastructure industry. The steel manufacture process involves aerial work, many danger factors caused by the treatment with hazardous gases including BFG and COG and by high pressure gases including $H_2$, $O_2$, $N_2$ and LPG. It requires the management over the large area because many workers work in a plant. The potential dangers in the steel plant were identified and the effect of the danger assessment was verified through the analysis of the danger assessment for the steel plant. The allowed degree of danger was lowered after the improvement through the danger assessment in the plant where the case studies were conducted, which indicates that the danger assessment is highly effective.