• Title/Summary/Keyword: Works efficiency

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A Review of the Improvement of Construction Management (CM) System and the CM Policy for the Public Construction Works (공공사업의 CM제도 개선 및 정책방향)

  • Jang Kie-Chang
    • Proceedings of the Korean Institute Of Construction Engineering and Management
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    • autumn
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    • pp.207-212
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    • 2002
  • The Construction Management(CM) System in Korea is systematized both in name and reality by being prescribed in Construction Industry Act('97) and Construction Management Act('01) through various discussions considering reformation of construction industry structure and enhancement of construction technology competitiveness. Specially in the public construction works, CM Pilot Project is promoted by central government for the activation of CM system introduced for efficiency of public construction project. The promotion of Pilot Project is not only the settlement and activation of CM system but also the process to embody and diversify the CM system. Now we should develop various CM application type such as Owner type, PM type and type for private capital project in doing so. And with this efforts, we could expect that CM system should play an important role to enhance the efficiency of public construction works and should affect private construction sector.

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Current Status of Sewerage Technology Evalution Verification System and Direction for Improvement of the System (하수도 기술의 평가 인증제도 운영현황 및 방향)

  • Lee, Sang-Eun
    • 수도
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    • v.24 no.5 s.86
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    • pp.16-28
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    • 1997
  • As sewerage works has become one of the major public works in Korea, the employment of advanced and more appropriate sewerage technology has become essential to improve the efficiency of sewerage works. During last 10 years, the Korean Government has made tremendous amount of investment on sewerage works so that treatment plants in 58 cities have treatment capacity which is equivalent to 52.8% of total daily sewage generation in Korea. This remarkable development, however, has heavily depended on one technology, the conventional activated sludge process as more than 95% of the existing plants employ this process, Recently, the Korean Government and local authorities have plans to introduce more appropriate sewage treatment technologies and research and development in this area has become very active. To encourage employing new and appropriate technologies, however, the proper technology evaluation and verification program for new process is needed. The public sector should play a key role in this program since the sewerage works is one of the major public works. In this paper, the technology evaluation and verification programs related with sewerage facilities in the US and Japan are briefly reviewed. The Innovatived and Alternative Technology programs which was operated by US EPA until recently and Environmental Technology Verification(ETV) program which was commenced in 1995 are introduced. The technology verification programs operated in Japan and also in Korea are also reviewed in this paper to propose a future direction for development of the appropriate evaluation and verification system.

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Removal Efficiency in Water Treatment Process and Characteristic of Cell Sensitivity of Waterborne Enteric Viruses (수계 바이러스의 정수처리공정별 제거율 및 세포주별 감염특성 조사)

  • Jung, Eun-Young;Park, Hong-Gi;Cha, Dong-Jin;Jung, Mi-Eun;You, Pyung-Jong
    • Journal of Life Science
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    • v.19 no.3
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    • pp.373-377
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    • 2009
  • Poliovirus, coxsackievirus, and ecovirus isolates from environmental sources were compared with laboratory strains to determine their removal rate in the water treatment process. The recovery efficiencies of poliovirus, coxsackievirus and echovirus using positive strains ranged from $72{\sim}108%$. Regarding virus removal efficiency in water treatment of pilot-plants, about 99% of all of the viruses were removed in the sedimentation step and 100% of viruses were clearly removed through post-ozonation and BAC filteration. Using six cell lines tested viral sensitivity in cell line and showed different sensitivity as viruses. Polioviruses showed higher sensitivity in the BGMK cell line than other cells, and coxsackieviruses were detected in higher level in the BGMK and Vero cell lines. On the other hand, the RD cell line was useful in the isolation of ecoviruses.

A Study for Establishing the Housing Welfare Delivery System in Incheon (주민자치센터의 주거복지 전달체계 구축 연구 - 인천시를 중심으로 -)

  • Park, Nam-Hee;Choi, Jae-Soon
    • Journal of the Korean housing association
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    • v.20 no.1
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    • pp.123-132
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    • 2009
  • The purpose of this study was to establish the housing welfare delivery system in Incheon. Documentary research and content analysis methods and survey were used in this study. Data drawn from internet homepage of each community center, gu-office and city hall in Incheon. The major results of this study are as follows. 1) Related works of housing welfare are housing welfare facility management, self helf center, support service of housing life, residential environment management 2) Housing welfare delivery system consists of city, gu-office, community center order. There are many problems that the lack of experts and department of housing welfare and inconsistent works. 3) There should be optimize the related works of housing welfare in order to increase of efficiency of works and to prevent overload to public servant. 4) Housing welfare delivery system needs to co-work through collaborative network in order to realize welfare society. And each main groups have to establish their horizontal relationships.