• Title/Summary/Keyword: protection measure

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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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    • v.7 no.6
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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.

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

  • Lee, Young-Ro;Cho, Jae-Wan
    • Journal of Digital Convergence
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    • v.5 no.1
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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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Design and Fabrication of High Frequency Ground Impedance Measuring System for Assessment of Grounding System for Lightning Protection (낙뢰 보호용 접지시스템 평가를 위한 고주파 접지임피던스 측정시스템의 설계 및 제작)

  • Gil, Hyoung-Jun;Shong, Kil-Mok;Kim, Young-Seok;Kim, Chong-Min;Kim, Young-Jin
    • Journal of the Korean Society of Safety
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    • v.31 no.3
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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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    • v.14 no.3
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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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    • v.55 no.11
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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.

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

  • Kim, Hee-Wan;Shin, Joong-Won;Kim, Dong-Soo
    • Journal of Digital Convergence
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    • v.10 no.3
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    • pp.23-37
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    • 2012
  • Illegal game players' hacking and propagation of malignant code in online game exposes privacy of online game customers. So, online game companies have to support the standardized systems and operations of customers' privacies. Since online game companies implement authentication of information protection, which focuses on assets or physical, systemic security, they need a more professional system that is related to protection of individual privacy. We analyzed the individual information protection system, which includes ISO27001, ISMS of KISA, GMITS, ePrivacy, online game privacy protection guide, and BS10012. Using the suggested systems, we proposed the systemic tools that measure the level of individual information protection, which includes process and check items of each phase.

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

  • Lee Kang-Bin
    • Journal of Arbitration Studies
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    • v.14 no.2
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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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A Study for FTA regulation enactment of the environmental protection and Trade liberalization (FTA체제하에서 환경규정의 제정방안에 관한 연구)

  • Lee, Jae-Young;Kim, Moon-Hong
    • International Area Studies Review
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    • v.15 no.2
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    • pp.383-401
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    • 2011
  • This paper studied about environmental protection and Free Trade in FTA. FTA is representative means that maximize trade profit through free trade. But Regulation for environmental protection is infringing profit of free trade(FTA). It is the natural matter that the all countries must do environmental protection. but, measure for environmental protection must not be used on trade limited constituent. This study studied about enactment plan of environmental regulation to achieve two targets of environmental protection with trade liberalization. Study Finding is as following. First, it is that to apply existent environmental standard in the FTA expands trade liberalization. Second, need enactment of rule that can interchange Environmental Goods or a technology effectively. Third, there is necessity to establish procedural regulations and substantial regulations that refer environment problems. also to include comprehensive form in case of choose Multilateral Environmental Agreements is reasonable.

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

  • Hu, Di;Choi, Chang-Hwan
    • International Commerce and Information Review
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    • v.15 no.3
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    • pp.245-262
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    • 2013
  • The transaction size between South Korea and the European Union (EU) had increased by more than two times among 2003 to 2008. With rapid growth of transaction, the EU was becoming important transaction object of South Korea gradually. EU has used the Antidumping policy as a trade protection tool against Korean products due to reduce the deficit of trade balance of payment, boost the economic growth and protect its weak industries. This paper investigates whether there is a connection between the EU's macroeconomic activity and pressures for protection to Korean products under antidumping measures with using the current data that come from the WTO, World Bank for 2004 to 2012. The result suggests that pressures for protection under Antidumping measure against exporting of Korean products to EU have increased during periods of macroeconomic weakness of low GDP growth, larger deficit of trade balance, however, has not significantly affected during periods of high unemployment.

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

  • Kim, Si-Kuk;Gum, Dong-Shin;Lee, Chun-Ha
    • Fire Science and Engineering
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    • v.29 no.5
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    • pp.57-66
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    • 2015
  • This thesis is based on a research to investigate the electrical fire risk due to the single and composite cause in a terminal block. This paper analyzed the thermal characteristics depending on the screw torque change and contact resistance change to measure the fire risk due to the poor contact from single cause first. To measure the fire risk due to the composite cause, the acceleration tracking depending on the contact resistance change was experimented to check the correlation of poor contact and tracking to fire. The experiment result showed that the thermal characteristics were clearer as the screw torque in poor contact status and magnitude of contact resistance increased and that the thermal characteristics of terminal block depending on the contact resistance change was more reliable than the thermal characteristics depending on the screw torque change. Moreover, the terminal block poor contact and tracking were correlated in the case of the composite cause, and when two composite causes were interacted, the electrical fire risk was higher than the single cause.