• 제목/요약/키워드: Protection measure

검색결과 598건 처리시간 0.029초

Practical Experiences with Corrosion Protection of Water Intake Gates in Mekong River

  • Phong, Truong Hong;Tru, Nguyen Nhi;Han, Le Quang
    • Corrosion Science and Technology
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    • 제7권6호
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    • pp.328-331
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    • 2008
  • Corrosion behaviour of water intake gate steel structures with different protective measures was investigated. Five material alternatives were taken for investigation, including: imported and recycled stainless steel, carbon steel with hot zinc spraying, painting and composite coatings. Results of corrosion rate for carbon steel, SUS 304, hot zinc spray coats in three water systems of Mekong river basin (saline, blackish and fresh) were also presented. Corrosion rate of carbon steel decreased with decreasing salinity in the investigated water environments. Meanwhile, these values for zinc coated steel, behaved by another way. Environmental data for these systems were filed and discussed in relation with corrosion characteristics. Method of Life Cycle Assessment (LCA) was applied in materials selection for water intake gate construction. From point of Life Cycle Cost (LCA) the following ranking was obtained: Zinc sprayed steel < Recycled stainless steel < Composite coated steel < Painting steel < SUS 304 From investigated results, hot zinc spray coating has been applied as protective measure for steel structures of water intake systems in Mekong river basin.

주요 정보통신기반시설의 평가컨설팅 방법론에 대한 연구 (A Study on the Evaluation Consulting Methodology of Important Information Communication Base Facility)

  • 이영로;조재완
    • 디지털융복합연구
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    • 제5권1호
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    • pp.55-68
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    • 2007
  • It soaks but 2001 July information communication base step law enforcement and the Enforcement Ordinance are published to follow, in order to support the establishment of evaluation and protective measure in order the vulnerability analysis against the facility of the agency which manages an important information communication base hour opinion to designate information protection specialty enterprise. As information protection specialty enterprise being revealed evacuation laboratory back 12 enterprises from information communication department become designation as the consulting enterprise and they do an enterprise activity actively. It follows in diffusion of the IT and information reconciliation level the other side where our country belongs in the world-wide first group, the research against the disfunction plan of preparation comparison the fact that law it is come negligently all actuality. The network as it will give management coat fatal effect even at obstacle occurrence hour of instant for of case and IT facility of the cyber transactions which leads, in the future there to be to corporate management, there is a possibility the stable civil official of information Facilities for communications very seeing in the portion which is important. Present condition and important propulsion contents of information communication base step law enforcement after, against a vulnerability analysis of information protection relation field and evaluation consulting methodological application situation to sleep it researches from the dissertation which it sees consequently and it does.

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낙뢰 보호용 접지시스템 평가를 위한 고주파 접지임피던스 측정시스템의 설계 및 제작 (Design and Fabrication of High Frequency Ground Impedance Measuring System for Assessment of Grounding System for Lightning Protection)

  • 길형준;송길목;김영석;김종민;김영진
    • 한국안전학회지
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    • 제31권3호
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    • pp.47-52
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    • 2016
  • This paper describes the design and fabrication of high frequency ground impedance measuring system for assessment of grounding system for Lightning protection. The ground impedance measuring system has been designed and fabricated which makes it possible to assess the ground impedance by frequency ranges from 100 Hz to 1 MHz. The effective grounding systems having a very low impedance to electromagnetic disturbance such as lightning surges and noises in microelectronics and high-technology branches are strongly required. In order to analyze the dynamic characteristic of grounding system impedances in lightning and surge protection grounding systems, it is highly desirable to assess the ground impedances as a measure of performance of grounding system in which lightning and switching surge currents with fast rise time and high frequency flow. The measuring system is based on the variable frequency power supply and consists of signal circuit part, main control part, data acquisition and processing unit, and voltage and current probe system. The ground impedance measuring system can be used to assess grounding system during occurrence of lightning.

Assessment and Correlation of Saline Soil Characteristics using Electrical Resistivity

  • Mustapha Maliki;Fatima Zohra Hadjadj;Nadia Laredj;Hanifi Missoum
    • Journal of Electrochemical Science and Technology
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    • 제14권3호
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    • pp.205-214
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    • 2023
  • Soil salinity is becoming one of the most devastating environmental hazards over the years. Soil investigation involves fast, low cost and non disturbing methods to measure soil characteristics for both construction projects as well as for agricultural use. The electrical resistivity of saline soils is greatly governed by salt concentration and the presence of moisture in soil matrix. Experimental results of this investigation highlight that there is a significant relationship between the electrical resistivity of soil samples mixed with chloride solutions (NaCl, KCl, and MgCl2) at various concentrations, and soil physical properties. Correlations represented by quadratic functions were obtained between electrical resistivity and soil characteristics, namely, water content, degree of saturation and salt concentration. This research reveals that the obtained correlations between electrical resistivity, salt concentration, water content and degree of saturation are effective for predicting the characteristics of salt affected soils in practice, which constitute a governing element in the assessment of saline lands sustaining infrastructure.

Airborne HPGe spectrometer for monitoring of air dose rates and surface activities

  • Marcel Ohera;Lubomir Gryc;Irena Cespirova;Jan Helebrant;Lukas Skala
    • Nuclear Engineering and Technology
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    • 제55권11호
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    • pp.4039-4047
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    • 2023
  • This contribution describes the application of HPGe detector for the airborne quantitative analysis. The hardware of the airborne HPGe system was designed from the commercial components with only exception of the newly designed AirHPGeSpec special software to control, measure and process the data. The system was calibrated for the local air kerma rates measured on helicopter board and its conversion to the air kerma rates at 1 m above the ground was proposed. Two examples of the air kerma rates measured over the former uranium mining areas are presented and compared with the results of other airborne system on the board. This airborne HPGe system could be also used for measuring the surface activities in a radiation event. The nuclides of 131I, 132Te - 132I, 133I, 134I, 135I, 137Cs, 134Cs, 88Rb and 103Ru were selected from possible nuclear power plant emergency scenarios. The Monte Carlo simulation was used to calculate HPGe detector efficiencies for the flight altitudes from 25 to 300 m for the energies from 300 keV to 3 MeV of the nuclides in question. Also, the detection limits according to the Currie method as well as ISO 11929-2010 for selected nuclides are presented.

온라인게임에서 개인정보보호 감리 모형 (Audit Method for Personal Information Protection in On-line Games)

  • 김희완;신중원;김동수
    • 디지털융복합연구
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    • 제10권3호
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    • pp.23-37
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    • 2012
  • 불법적인 게임 플레이어들의 해킹 및 악성코드의 유포로 온라인게임은 고객의 개인정보 유출을 빈번하게 일어나게 하는 요인이 되고 있다. 그러므로, 온라인게임사도 게임 개발과 함께 서비스를 운영함에 있어 개인정보보호에 대한 표준화된 체계와 운영의 필요성이 크게 고려되어야 한다. 온라인 게임사별로 정보보호인증을 도입하고 인증 심사를 받고 있으나, 전반적으로 자산이나 물리적, 시스템적 보안에 중점을 두기 때문에 개인정보보호와 관련되어 좀 더 전문적인 체계가 필요하다. 본 연구는 ISO27001, KISA의 ISMS, GMITS 등 기존의 정보보호인증들과 산발적으로 운영되고 있는 개인정보보호인증마크(ePrivacy), 온라인게임 개인정보보호 가이드, BS10012 등 개인정보보호 관련 체계들을 수집하여 분석하였다. 이를 이용하여 온라인게임업체에서 운영 시 필요한 개인정보보호체계 프로세스와 각 단계별로 필요한 점검 항목을 도출하여 개인정보보호 수준을 측정하는 체계적인 도구를 제안하였다.

UNCITRAL 모델중재법상 임시적 보호처분의 개정방향 (The Revision Guideline of Interim Measures of Protection under UNCITRAL Model Law on International Commercial Arbitration)

  • 이강빈
    • 한국중재학회지:중재연구
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    • 제14권2호
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    • pp.73-106
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    • 2004
  • The UNCITRAL Arbitration Working Group began its deliberations on the topic of interim measures of protection at its thirty-second session (Vienna, 21-30 March 2000), when the Working Group expressed general support for a legal regime governing enforcement of interim measures of protection ordered by the arbitral tribunal. Also the Working Group took a preliminary analysis of whether there was a need for a uniform rule on court-ordered interim measures of protection in support of arbitration. The Working Group agreed, at its thirty-third session (Vienna, 20 November-1 December 2000), that the proposed new article to the UNCITRAL Model Law on International Commercial Arbitration on enforcement of interim measures of protection (tentatively numbered article 17 bis) should include an obligation on courts to enforce interim measures if prescribed conditions were met. At its thirty-fourth session (New York, 21 May-1 Jun 2001), in addition to continuing its review of draft article 17 bis, the Working Group proceeded to consider a text revising article 17 of the UNCITRAL Model Law, which defined the scope of an arbitral tribunal's power to order interim measures and included an additional provision on the granting of interim measures on an ex parte basis. Discussions in relation to revised drafts of article 17 and 17 bis of the UNCITRAL Model Law have continued at the fortieth session ( New York, 23-27 February 2004). Article 17 of the UNCITRAL Model Law provides that the arbitral tribunal may order any party to take such interim measure of protection as the arbitral tribunal may consider necessary in respect to the subject matter of the dispute. However it may be noted that the article does not deal with enforcement of such measures.

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FTA체제하에서 환경규정의 제정방안에 관한 연구 (A Study for FTA regulation enactment of the environmental protection and Trade liberalization)

  • 이재영;김문홍
    • 국제지역연구
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    • 제15권2호
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    • pp.383-401
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    • 2011
  • 본 연구는 FTA의 효과를 극대화하는 데 있어, 무역자유화의 이익을 침해하지 않으며, 동시에 환경보호를 달성하기 위한 환경규정의 제정방향에 대하여 연구하였다. 본 연구를 통하여 FTA체제하에서의 무역자유화와 환경보호 달성을 위한 환경규정의 제정방향은 크게 세 가지로 요약해 볼 수 있다. 첫째는 FTA협정문상의 환경기준을 적용하는 데 있어서는 새로운 환경기준을 적용하기 보다는 기존의 있는 환경기준을 적용하여 환경협상력을 강화하고 교묘하게 운영되는 환경보호조치를 축소하기 위한 노력을 기울여야 한다. 둘째로 FTA 체결국간에 논란의 여지가 많은 것에 대해서는 보다 엄격한 환경관련 규정을 적용하거나 현행 WTO규정 및 다자간환경협약을 그대로 적용하는 것이 타당할 것으로 보여진다. 셋째는 FTA를 통한 환경기술이나 제품에 대한 적극적인 교류를 확대할 수 있는 규범 제정이 필요하다. 마지막으로 환경과 관련한 실체적 규범과 절차적 규범에 대한 명확한 제정이 이루어져서 오염행위나 환경마찰에 대하여 신속하고 객관적인 이행이 보장되도록 해야 한다.

EU의 한국산 제품에 대한 반덤핑 조치에 영향을 미치는 거시경제요인 분석 (Determinants of the EU's Antidumping Measure against Korean products)

  • 호적;최창환
    • 통상정보연구
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    • 제15권3호
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    • pp.245-262
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    • 2013
  • 본 연구에서는 EU 집행위원회가 취한 반덤핑 규제와 특징을 분석하고, EU의 대 한국산 제품에 대한 반덤핑 규제에 영향을 미치는 EU의 GDP 성장률, 실업률, 무역수지, EU 한국간 무역수지, 수입침투도 등과의 관계를 실증 분석함으로써 EU의 반덤핑 조치결정과 EU의 거시 경제변수들 간의 관계를 확인하고자 하였다. 2004년~2012년까지 분기자료를 기반으로 실증분석 결과 EU의 거시경제 변수 중에서 GDP 증가율, 무역수지, EU 한국 무역수지 부분은 EU 반덤핑 영향에 유의한 결과를 가져오며, 다만 EU 실업율, 수입침투도 부분에서는 EU 반덤핑 규제 영향력에 대한 유의성이 없음을 확인하였다. 이러한 결과를 바탕으로 한국기업이나 정부는 EU의 반덤핑 규제에 대한 피소가능성이 높은 EU 경제상황을 예의 주시하면서 적절한 대응책을 마련해야 할 것이다.

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단일 및 복합 원인에 의한 단자대 전기화재위험성에 관한 연구 (A Study on the Electrical Fire Risk of Terminal Block Due to Single and Composite Cause)

  • 김시국;금동신;이춘하
    • 한국화재소방학회논문지
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    • 제29권5호
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    • pp.57-66
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    • 2015
  • 본 논문은 단자대에서 단일원인 및 복합원인에 의한 전기화재위험성을 규명하기 위한 연구이다. 우선적으로 단일원인인 접촉불량에 의한 화재위험성을 측정하기 위해 조임토크변화 및 접촉저항변화에 따른 열적특성을 분석하였다. 또한, 복합원인에 의한 화재위험성을 측정하기 위해 접촉저항변화에 따른 가속트래킹 실험을 실시하여 접촉불량과 트래킹의 화재연관성을 확인하였다. 실험결과 단일원인의 경우 접촉불량상태의 조임토크 및 접촉저항 크기가 증가할수록 열적특성이 뚜렷하게 나타나는 것을 확인할 수 있었고, 접촉저항변화에 따른 열적특성이 조임토크변화에 따른 열적특성보다 그 특성이 더 잘 나타났다. 또한, 복합원인의 경우 단자대 접촉불량과 트래킹은 상호연관성을 가지고 있으며, 두 가지의 복합적인 원인이 서로 작용될 경우 기존의 단일원인의 전기화재 위험성보다 상대적인 위험성이 더욱 높게 나타나는 것으로 도출되었다.