• Title/Summary/Keyword: strengthening system

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A system analysis research for a terrorism law of prevention enactment of the foreign country (대테러방지법 제정을 위한 외국과의 제도 분석 연구)

  • Kwon, Jeong-Hoon;Kim, Tae-Hwan
    • Journal of the Society of Disaster Information
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    • v.3 no.2
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    • pp.3-21
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    • 2007
  • Every country finds a way to respond a lot of terrors to keep her safe in many ways. Our country, before a terror outbreaks, makes various countermeasures such as strengthening international cooperative systems, strengthening informational ability to countermeasure terror, restricting for terrorists to enter or exit from our country, restricting other countries to input weapons in our country to prevent from terror in the aspect of precaution. A terror is more grave than any other one in behavior, and the criminals have to be punished so much and be discriminated from other ones, too. So, a concept of general crime and terror has to be defined. It is finished in the academic area to some extent, but, it is not sufficient in lawful area so much. Afterwards, it is necessary to establish counter-terror protection laws regulating terror crimes directly. In addition, it is necessary to define concretely and clearly the terror activity and deduce the definition of terrorism.

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A Study on the Welding Technology for the Fabrication of Korean Fusion Reactor(KSTAR)

  • Kim, Dae-Soon;Park, Chang-Ho
    • Proceedings of the KWS Conference
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    • 2002.10a
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    • pp.418-424
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    • 2002
  • Korean Fusion Reactor(KSTAR) system consists of a vacuum vessel, in-vessel components, cryostat, thermal shield, super-conducting magnets and magnet supporting structures. These systems are in the final stage of engineering design with the involvement of industrial manufacturers. The overall configuration and the detailed dimensions of the KSTAR structure have been determined and the first stage of manufacturing is progressing now. In this study, the fabrication and assembly sequence were evaluated in viewpoint of high strengthening joints and very high accuracy. Especially for this purpose, the special cleaning process and welding process were proposed for high strengthening austenitic stainless steel which shall be used at cryogenic temperature. The draft procedure qualification data for welding process are presented with precise welding data including special narrow groove design. For the cooling line attachment on the surface of inside wall of magnet structure case, Induction brazing technology is introduced with some special jigging system and some consumables.

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Trend of New-Technology for Photovoltaics (태양광발전의 신기술동향)

  • Kim, Ho-Kun
    • The Journal of Information Technology
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    • v.12 no.4
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    • pp.19-24
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    • 2009
  • Recently, for the efforts of low-carbon deduction and to solve the problems of global warming, many industrial nations in world have been strengthening positively their competitive power into the research, development and industrialization of new renewable sources of energy and clean energy. In the most promising source of photovoltaic, it is essential that the government take an initiative role to develop and industrialize the materials, ingot or wafer, solar cell, power conditioning system and photovoltaic system, and need to establish both short-term and long-term technical development of goal setting and forward plan in the direction of the technical development strategy and forward industrialization for the strengthening of world market. This paper analyze new technology, policies and the market trend of photovoltaic field which are currently strategically and actively enhancing the research, development and practical-industralization by Korea and other nations.

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A study of open cut box curvert tunnel strengthening systems in domestic underground railway (도시철도 개착식 터널의 내진성능보강시스템 개발에 대한 연구)

  • Kim, Ki-Hong;Kwon, Min-Ho;Kim, Jin-Ho;Hur, Jin-Ho
    • Proceedings of the KSR Conference
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    • 2010.06a
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    • pp.1132-1137
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    • 2010
  • There are execute of new laws about prevent of earthquake diaster in nation because of some increments of big earthquake occurence frequency. Now develope new composit plate by ductile fiber with strong mechanic materials, which compose of strengthening systems for the underground structures subject to forced displacements. This study is to focus to develop the retrofitting system for the cut and cuver tunnels built without earthquake type load scenario, so that it can provide the safety of existing urban subway system against earthquakes.

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Rehabilitation of hospital buildings using passive control systems

  • Syrmakezis, C.A.;Mavrouli, O.A.;Antonopoulos, A.K.
    • Smart Structures and Systems
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    • v.2 no.4
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    • pp.305-312
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    • 2006
  • In the case of hospital buildings, where seismic design requirements are very high, existing structuresand especially those attacked by past earthquakes, appear, often, unable to fulfil the necessary safety prerequisites. In this paper, the retrofitting of hospital buildings is investigated, using alternative methods of repair and strengthening. Analysis of an existing hospital building in Patras, Greece, is performed. The load-bearing system is a reinforced concrete system. Two solutions are proposed: strengthening using concrete jackets around column and beam elements and application of viscoelastic dampers for the increase of the stability of the structure. Adequate finite element models are constructed for each case and conclusions are drawn on the efficiency of each rehabilitation method.

The Need for Developing Technology-Enabled, Safe, and Ethical Workforce for Healthcare Delivery

  • Sarbadhikari, Suptendra N.;Pradhan, Keerti B.
    • Safety and Health at Work
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    • v.11 no.4
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    • pp.533-536
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    • 2020
  • Strengthening of the health system is a safety imperative, especially in a crisis as caused by the ongoing COVID-19 pandemic. While there is a need for enhancing the number and skill sets of the public health professionals, especially the frontline workers, it will be prudent to use the digital health technologies, including artificial intelligence, in enhancing the capacity of the healthcare professional education and delivery. However, it has to be ensured that an ethical and safe approach is adopted to develop and use digital health technology and, ethically appropriate training is imparted, to enhance the capacity of the human resources for health, leading to an overall health system strengthening.

Development of An Interim Evaluation System for Integrated Rural Village Cluster Development Project (농촌마을종합개발사업의 효율적 추진을 위한 중간평가체계 개발)

  • Kim, Kyung-Ryang;Choi, Youn-Sang;Hong, Sung-Kyu
    • Journal of Korean Society of Rural Planning
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    • v.12 no.2 s.31
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    • pp.65-73
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    • 2006
  • This study attempts to develop an interim evaluation system for the Integrated Rural Village Cluster Development Project(IRVCDP) which can secure its identity and sustainability, and induce its early settlement, and to derive plans for its steady progress. The evaluation system consists of three levels. The highest-order level is evaluation purposes, which describe IRVCDP's goals. They are expansion of income bases(EIB), improvement of living environments(ILE), strengthening of regional capabilities(SRC) and constructing effective project operation system(CEPOS). The second level is evaluation items, which each characterize the relevant evaluation purposes. The last level is evaluation indices, which observe achievement f3r evaluation purposes. 22 evaluation indices are selected to satisfy the purposes of this study through a brainstorming process and a survey on opinions of experts for those evaluation purposes and evaluation items which are derived from analyzing the IRVCDP's properties. The relative importance of the evaluation indices selected are determined through the AHP analysis. The most intriguing result from the AHP analysis is that strengthening of regional capabilities is found to be the most important one among evaluation purposes. It can be said that this result is parallel to a ultimate goal of the IRVCDP.

법가사상과 현대중국의 법제강화

  • Jo, Bong-Rae
    • 중국학논총
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    • no.72
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    • pp.161-177
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    • 2021
  • 鄧小平1978年12月在中央工作會議閉幕會上的講話中提出民主和法制問題以后, 中國共産党着力加强法制建設。最近習近平上台以后, 看來中共正試圖進一步收緊法律。中國傳統思想包括諸子百家長期存在, 對社會的各个領域都産生了影響。我認爲中國人對現代法制的認知基础是受一定的法家思想影響的。本文探討了新中國成立以來中共的加强法制的過程及与法家思想關連性。主要探討了毛澤東时代最高領袖的權力和法家思想中的統治術, 改革開放以來社會秩序的建立和法家思想尋求的大一統, '新时代中國特色'和法家思想的与时俱進的歷史觀。

Study on the Microstructural Degradation of the Boiler Tubes for Coal-Fired Power Plants

  • Yoo, Keun-Bong;He, Yinsheng;Lee, Han-Sang;Bae, Si-Yeon;Kim, Doo-Soo
    • KEPCO Journal on Electric Power and Energy
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    • v.4 no.1
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    • pp.25-31
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    • 2018
  • A boiler system transforms water to pressured supercritical steam which drives the running of the turbine to rotate in the generator to produce electricity in power plants. Materials for building the tube system face challenges from high temperature creep damage, thermal fatigue/expansion, fireside and steam corrosion, etc. A database on the creep resistance strength and steam oxidation of the materials is important to the long-term reliable operation of the boiler system. Generally, the ferritic steels, i.e., grade 1, grade 2, grade 9, and X20, are extensively used as the superheater (SH) and reheater (RH) in supercritical (SC) and ultra supercritcal (USC) power plants. Currently, advanced austenitic steel, such as TP347H (FG), Super304H and HR3C, are beginning to replace the traditional ferritic steels as they allow an increase in steam temperature to meet the demands for increased plant efficiency. The purpose of this paper is to provide the state-of-the-art knowledge on boiler tube materials, including the strengthening, metallurgy, property/microstructural degradation, oxidation, and oxidation property improvement and then describe the modern microstructural characterization methods to assess and control the properties of these alloys. The paper covers the limited experience and experiment results with the alloys and presents important information on microstructural strengthening, degradation, and oxidation mechanisms.