• 제목/요약/키워드: environmental actions

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A Study on the Operational Model of Cleaner Production System (청정생산시스템의 실행모형에 관한 연구)

  • 김현수;박영택
    • Journal of Korean Society for Quality Management
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    • v.29 no.3
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    • pp.1-17
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    • 2001
  • Among the activities of industrial companies, manufacturing processes are major sources of environmental problems. So, many companies with manufacturing processes have taken the necessary actions to comply with environmental regulations. But, most of them have mainly focused on the 'end-of-pipe techniques' to reduce pollutants in a short period of time. However, these reactive approaches are basically symptomatic treatments and no more appropriate for sustainable development and growth. The cleaner production, which deals with pollutants at the place of origin, has been introduced as a solution to the problem. In this paper, an operational model of cleaner production system Is proposed and the factors, which affect tile performance of cleaner production, are identified through the field survey of 37 manufacturing companies.

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A Study on the Environmental-friendly features at Korean Traditional Houses -Focused on Nak-An folk village- (한국전통민가주택의 친환경적 특성에 관한 연구 -낙안읍성 민속마을을 중심으로-)

  • Ju, Geup-One;Choi, Man-Jin
    • Journal of Agricultural Extension & Community Development
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    • v.17 no.3
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    • pp.549-585
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    • 2010
  • Our global environment and ecology are now facing crisis due to the hrincreased waster materials caused by reckless abuse of resources and energy with the continuous development of our society. Therefore the whole nation should recognize the environmental pollution seriously and should accept sustainable development principles. The country is looking for actions against the problems in various ways. The introduction of reckless and duplicating western housing plan should be ceased but a new housing plan conforming to our nature should be found. In this regard, it is believed that it is a good alternative to succeed tradition and identity of Korean housing plan and suggest a new plan for better ecological housing by analyzing the environment friendliness of our traditional Korean houses. In this study, the traditional residential components were divided into physical and design aspects and the characteristics of environment friendly Korean traditional houses were analyzed.

Environmental Features and Actions of Pulp & Paper Industry (펄프.제지산업의 환경적 특성과 대책)

  • Cho, Jun-Hyung
    • Journal of Korea Technical Association of The Pulp and Paper Industry
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    • v.41 no.3
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    • pp.13-21
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    • 2009
  • Pulp and paper industry is a typical plant industry which usually consume lots of water and energy. Recently, environmental issues have become more important due to climate changes around the world, and reinforcement in the regulatory content in transfer and management of chemical material and that in environmental regulations for waste water and air. Paper industry is a source material recycle industry which recycle or reuse waste paper, recyclable wood, planned plantation or lumber from thinning and waste wood. Hence it can be said that paper industry is the representative industry for earth environment and of 21th century.

A RESEARCH ANALYSIS ON EFFECTIVE LEARNING IN INTERNATIONAL CONSTRUCTION JOINT VENTURES

  • L.T. Zhang;W.F. Wong;Charles Y.J. Cheah
    • International conference on construction engineering and project management
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    • 2007.03a
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    • pp.450-458
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    • 2007
  • This paper presents the results of a statistical analysis and its research findings focusing on the learning aspect in the process of international joint ventures (IJVs). The contents of this paper is derived from a sample of 96 field cases based on a proposed conceptual model of effective learning for international construction joint ventures (ICJVs). The paper presents a brief review on the conceptual model with hypotheses and summarized the key results of statistical analysis including factor and multiple regression analysis for the testing of the validity of the proposed conceptual model and its associated research hypotheses. Among other research findings, the research confirms that ICJVs provides an excellent platform of in-action learning for construction organization and suggests that good outcomes in learning could be reaped by a company who has a clear learning intent from the beginning and subsequently take corresponding learning actions during the full process of the joint venture.

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AUTOMATED PROJECT CONTROL SYSTEM FOR STEEL PROJECTS

  • Reza Azimi;SangHyun Lee;Simaan M. AbouRizk
    • International conference on construction engineering and project management
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    • 2009.05a
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    • pp.479-486
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    • 2009
  • This paper presents an integrated real-time monitoring and control framework that facilitates decision making by enabling project managers to take corrective actions right after any deviation happens and mitigate the damage to the ongoing steel projects. The proposed framework employs the High Level Architecture (HLA) as its infrastructure. It is composed of several individual monitoring and control components called "Federates," which cooperate and interact with each other through the Real-time Infrastructure (RTI). Reusability, interoperability and extendibility of federates in the proposed project control system make this a unique system.

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8-Hydroxyguanine in DNA Mediates Cell Death of KG-1, a Human Leukemia Cell Line by Inducing Cell Cycle Arrest and Apoptosis

  • Hyun, Jin-Won
    • Proceedings of the Korean Society of Toxicology Conference
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    • 2001.05a
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    • pp.89-93
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    • 2001
  • All that is presently known about the actions of 8-hydroxyguanine (8-oxoguanine; oh$^{8}$ Gua) in DNA is that it harms genetic integrity. This is even speculation based upon scattered in vitro experimental data such as the mismatch of oh$^{8}$ Gua with A in stead of C and the GC longrightarrow TA transversion observed in the DNA polymerase reaction using an oh$^{8}$ Gua containing oligonucleotide.(omitted)

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Optimal Maintenance Decisions for Power Supply Timber Poles

  • G., Chattopadhyay;A., Rahman
    • International Journal of Reliability and Applications
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    • v.5 no.4
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    • pp.115-128
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    • 2004
  • Reliability of a power supply timber pole depends on complex combination of age, environmental factors involved in deterioration process ans inspection and maintenance actions influencing reliability and safety. In this paper soil and human factors are identified, models have been developed and analyzed for optimal maintenence decisions related to electrical power supply timber poles.

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THE REGULATION OF CYP1A1 GENE EXPRESSION BY ESTRADIOL AND ITS METABOLITES

  • Joung, Ki-Eun;Sheen, Yhun-Yhong
    • Proceedings of the Korean Society of Toxicology Conference
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    • 2002.11b
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    • pp.149-150
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    • 2002
  • 2,3,7,8-Tetrachlorodibenzo-p-dioxin (TCDD) is the most potent halogenated aromatic hydrocarbon congener that induces expression of several genes including CYP1A. Exposure to TCDD results in many toxic actions such as carcinogenesis, hepatotoxicity, immune suppression, reproductive toxicity and developmental toxicity.(omitted)

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Studies on the protective effect of Cheju and Brazil pectin on the male reproductive system damaged by 2.3.7.8-tetrachlorodibenzo-P-dioxin

  • Shim, Kyoo-Jung;Choung, Se-Young
    • Proceedings of the PSK Conference
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    • 2002.10a
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    • pp.283.1-283.1
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    • 2002
  • The adverse health effects on humans and domestic and wildlife species by exposing to environmental contaminants. which interact with the endocrine system. have he en treated as an important issue without hesitation throughout the 1990s. The chemicals with practical and/or potential interfering actions with the endocrine system functions are called endocrine disrupting chemicals (EDCs). (omitted)

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Seismic assessment of transfer plate high rise buildings

  • Su, R.K.L.;Chandler, A.M.;Li, J.H.;Lam, N.T.K.
    • Structural Engineering and Mechanics
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    • v.14 no.3
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    • pp.287-306
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    • 2002
  • The assessment of structural performance of transfer structures under potential seismic actions is presented. Various seismic assessment methodologies are used, with particular emphasis on the accurate modelling of the higher mode effects and the potential development of a soft storey effect in the mega-columns below the transfer plate (TP) level. Those methods include response spectrum analysis (RSA), manual calculation, pushover analysis (POA) and equivalent static load analysis (ESA). The capabilities and limitations of each method are highlighted. The paper aims, firstly, to determine the appropriate seismic assessment methodology for transfer structures using these different approaches, all of which can be undertaken with the resources generally available in a design office. Secondly, the paper highlights and discusses factors influencing the response behaviour of transfer structures, and finally provides a general indication of their seismic vulnerability. The representative Hong Kong building considered in this paper utilises a structural system with coupled shear walls and moment resisting portal-frames, above and below the TP, respectively. By adopting the wind load profile stipulated in the Code of Practice on Wind Effects: Hong Kong-1983, all the structural members are sized and detailed according to the British Standards BS8110 and the current local practices. The seismic displacement demand for the structure, when built on either rock or deep soil sites, was determined in a companion paper. The lateral load-displacement characteristic of the building, determined herein from manual calculation, has indicated that the poor ductility (brittle nature) of the mega-columns, due mainly to the high level of axial pre-compression as found from the analysis, cannot be effectively alleviated solely by increasing the quantity of confinement stirrups. The interstorey drift demands at lower and upper zones caused by seismic actions are found to be substantially higher than those arising from wind loads. The mega-columns supporting the TP and the coupling beams at higher zones are identified to be the most vulnerable components under seismic actions.