• Title/Summary/Keyword: 이장의 역할

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Ijang's Role and Stress as an Emergency Manager (재난관리자로서 이장의 역할과 스트레스에 관한 분석)

  • Kim, Man-Jae
    • Journal of the Korean Society of Hazard Mitigation
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    • v.9 no.6
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    • pp.69-75
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    • 2009
  • This paper examines the evolving role of ijang(village representative) and his job stress during Pyeongchang floods in 2006. Results based on telephone survey and interviews reveal that ijang played a crucial role in evacuating residents, allocating resources and commanding the recovery, although official job description considered him as only a mediator between local officers and villagers. Moreover, unexpected enormous burden created severe job stress to many ijangs; while 60 percent felt like quitting the job, about three fourth felt fretful whenever the telephone rang and lost some weights. Chi-square analysis also indicated that previous job training, villagers' abuse, and disaster damages were significantly related with job stress. These results suggest that the emergent human resources model rather than the command and control model can be an effective approach for a disaster management plan in rural Korea.

The role of asbestos in secondary cement-product (시멘트 2차제품에서의 석면의 역할)

  • 이장화;박홍석
    • Proceedings of the Korea Concrete Institute Conference
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    • 1992.10a
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    • pp.214-217
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    • 1992
  • The asbestos has many advantages in engineering aspect. The objective of this report is to investigate and analyze the influence of the asbestos in secondary cement-product. For this purpose, several asbestos -ratio are examined and the relationship between asbestos-ratios and strength is studied. From the present tests, it ti found that the strength of the press-out cement-product was the maximum value at the asbestos-tratio of 11%

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Effects of chemical surface treatment on the shear bond Strength of denture reliners and denture base resin (화학적 표면처리에 따른 의치상 레진과 이장재 간의 전단 결합강도)

  • Choi, Esther;Kwon, Eun-Ja
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.14 no.11
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    • pp.5745-5751
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    • 2013
  • The purpose of this study was to evaluate the effect of the surface treatment of MMA and TEGDMA concentration, silane coupling agent on the shear bond strength of denture base resin and denture reliners. Denture base resin surface was treated with MMA and TEGDMA concentration, silane coupling agent. After denture reliners were injected bond strength was measured. The results of MMA and TEGDMA concentration on the shear bond strength of Vertex self curing resin showed that the value of MMA 95% and TEGDMA 5%, MMA 90% and TEGDMA 10%, MMA 80% and TEGDMA 20% groups were higher than that of other group(P<0.05). MMA and TEGDMA concentration on the shear bond strength of Kooliner resin showed that the value of MMA 95% and TEGDMA 5%, MMA 90% and TEGDMA 10% were higher than that of other group(P<0.05). Silane coupling agent on the shear bond strength of Vertex self curing resin and Kooliner showed that the value of MMA 95% and silane coupling agent 5% groups was higher than that of other group(P<0.05). Therefore, we could conclude that appropriate chemical surface treatments are supposed to affect the bond of denture base resin and denture reliners.