• Title/Summary/Keyword: Development Progress

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Progress in research and development for REBCO coated conductors by reactive co-evaporation

  • Oh, S.S.;Kim, H.S.;Ha, H.S.;Ko, R.K.;Ha, D.W.;Lee, H.;Moon, S.H.;Yoo, S.I.
    • Progress in Superconductivity and Cryogenics
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    • v.15 no.4
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    • pp.1-5
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    • 2013
  • This paper reviews recent progress in research and development (R&D) of reactive co-evaporation for high performance REBCO coated conductors in Korea. Two types of reactive co-evaporation methods were developed for the deposition of SmBCO and GdBCO superconducting layers respectively on the IBAD (Ion Beam Assisted Deposition)-MgO template in the Korean coated conductor project. Batch type reactive co-evaporation equipment and its processing were developed for SmBCO coated conductors at Korea Electrotechnology Research Institute (KERI) in conjunction with the Korea Advanced Institute of Science and Technology (KAIST), and a very high critical current exceeding 1,000 A/cm at 77 K in the self field was achieved through the optimization of deposition parameters. Reel-to-reel type reactive co-evaporation processing with a high conversion rate was also developed, while long length GdBCO coated conductors have been routinely produced by SuNAM Co. The minimum critical current of 422 A/cm-w at 77 K in self field was confirmed for 1 km-long GdBCO tape.

Toward Sustainable Neighbourhood Design: Examining Shinjung Environmentally Friendly Housing Estate Development Project

  • Kim, Kyung-Bae;Oh, Deog-Seong
    • Architectural research
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    • v.3 no.1
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    • pp.9-19
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    • 2001
  • Since the late 1990s Korean housing authorities and private companies have been pursuing various initiatives towards sustainable neighbourhood design, however, there has been no attempt to examine their progress. This research aims to suggest a sustainability evaluation framework and analyse the progress of sustainability of a cutting edge project: Shinjung Environmentally Friendly Housing Estate Development, using that framework. The results of the analysis suggest that the project failed to make Significant progress in the sustainability evaluation criteria compared to normal projects in Korea and there exist significant barriers: economic/financial barriers; institutional/structural barriers; and implementation barriers within current planning and design practices. Most of the project's design strategies were simply adopted and used as a marketing tool without public participation, sustainability targets or benchmarking for sustainability. Furthermore, most of the responsibility for maintenance was left to residents who normally lack the knowledge, experience, interest and money to carry out such tasks. These problems cause significant concerns over the future success of the project toward sustainability. The experience of the Shinjung project also highlights the need for a more proactive central and local government stance towards sustainable neighborhood design.

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Recent Progress in Layer-by-layer Assembly of Nanomaterials for Electrochemical Energy Storage Applications

  • Kim, Sung Yeol
    • Journal of the Korean Electrochemical Society
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    • v.17 no.3
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    • pp.139-148
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    • 2014
  • Electrochemical energy-storage devices such as batteries and supercapacitors are important components in emerging portable electronic device, electric vehicle, and clean energy storage and supply technologies. This review describes recent progress in the development of nanostructured electrodes, the main component of the electrochemical energy-storage device, prepared by layer-by-layer (LbL) electrostatic assembly. Major advantages associated with, and challenges to, the fabrication of LbL electrodes, as well as the future outlook for expanding the application of LbL techniques, are discussed.

Strategies for the Commercial Development of Seafloor Hydrothermal Deposits in Consideration of International Progress (해저열수광상 상업개발을 위한 국제동향분석과 국가대응전략)

  • Park, Se-Hun;Yang, Hee-Cheol;Lee, Moon-Suk
    • Ocean and Polar Research
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    • v.32 no.4
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    • pp.475-482
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    • 2010
  • Hydrothermal deposits on deep-sea floors are expected to provide potential metal resources for future demands. Korea was recently granted a prospecting licence to undertake exploration for hydrothermal metal deposits in the exclusive economic zone (EEZ) of the Kingdom of Tonga in the Pacific Ocean. The Korean Deep Seabed Mining Group (KDSMG), which consists of four Korean companies involved in marine technologies, oil and gas shipping, and smelter industries, has conducted research to evaluate the region's resource potential in cooperation with the Ministry of Land, Transport and Maritime Affairs (MLTM) of Korea. Here we present and reflect on the exploration results of these companies and their strategic plans. We also evaluate Research and Development (R&D) progress for the commercial development of seafloor hydrothermal deposits. Our own strategies and prospects for the commercial development of this potential resource are also outlined. We do acknowledge that other potentially important information regarding the amount of ore body, the inside structure, and the metal yields have not yet been clarified sufficiently. As such it is necessary to address these problems through experimental R&D and surveys.

Myanmar Telecommunication Progress in the Last Fifteen Years and Challenges

  • Ei, Khin Htar;Kim, Yun Seon
    • Asia Pacific Journal of Business Review
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    • v.1 no.1
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    • pp.40-55
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    • 2016
  • Information and Communication Technology (ICT) has the potential to provide economic opportunities and help raise the social and political status of countries. For developing countries, ICT can be used as a tool for economic growth and social advancement in a short period of time. The benefits of ICT, however, are not only economic in nature. It can help improve professional skills, teaching quality, job creation, agricultural production, community involvement, and information use, personal relationships, and time use. These benefits are examples of how ICT has become an indispensable part of our lives. Myanmar is a developing country and is ranked low in the ICT Development Index. In terms of ICT development, Myanmar today is facing many issues such as a lack of telecommunication infrastructure, ICT awareness, electricity, and budget for ICT development. Among the economic reforms implemented by the recent government, the telecommunications sector has been opened up as a measure of economic reform. As a result of this reform, the telecommunications sector has been growing rapidly. Myanmar, however, remains behind other Asian countries. This paper discusses Myanmar's ICT infrastructure status, progress that has been made in the country's telecommunications over the last fifteen years, and the challenges that lie ahead.

An Analysis on the Characteristics of Work Items for RFID Technology Application Possibility Valuation (RFID 기술적용 가능성 평가를 위한 각 공종별 주요자재 특성분석)

  • Koo, Do-Hyung;Yoon, Su-Won;Chin, Sang-Yoon;Kim, Yea-Sang;Kwon, Soon-Wook
    • Korean Journal of Construction Engineering and Management
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    • v.9 no.2
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    • pp.159-169
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    • 2008
  • Recently, domestic construction projects Have become more high-rised, bigger, sophisticated, so necessity of logistics and progress management through application of various management theories has also been increased and development of IT technologies like RFID can help to improve management method, although the existing logistics and progress management studies are applied only to single progress or important material. It is a basic research for integrated framework for logistics and progress management. An analysis on the characteristics of RFID tech was performed for major materials or components of each work item in office building projects. This paper will make foundation of integrated framework for logistics and progress management in construction project, utilizing RFID technology by analysing materials type like materials which can be chased and measured, materials which can be chased and measured by certain methodologies, materials which can be chased and measured by future technologies, materials which are difficult to be chased and measured. So we can effectively control logistics and progress management, appling the optimum RFID technology to each construction project, and we need to study out solution in order to overcome RFID technology limitation through development of specification counterproposal about delicate materials of the RFID technology application.

A Progress-based Expert System for Quantitative Assessments of Project Delay

  • Yoo, Wi Sung
    • Architectural research
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    • v.10 no.1
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    • pp.41-48
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    • 2008
  • Construction projects have frequently exceeded their schedule despite reliable estimates at the start of a project. This problem was attributed to unpredictable causes at the beginning and to shortage of proper tools to accurately predict project completion date. To supplement this difficulty, project managers need a comprehensive system that can be employed to monitor the progress of an ongoing project and to evaluate potential delay for achieving the goal on time. This paper proposed a progressive-based expert system for quantitative assessments of project delay at the early stages of the execution. Furthermore, the system is used to inspect the change of the uncertainty on completion date and its magnitude. The proposed expert system is helpful for furnishing project managers a warning signal as a project is going behind schedule and for tracking the changed uncertainty at a desired confidence level. The main objectives of this paper are to offer a new system to overcome the difficulties of conventional forecasting tools and to apply a construction project into the system to illustrate its effectiveness. This paper focuses on construction phase of project development and is intended for the use by project managers.

A Case Study on the Haier Globalization of Chinese Electronics Firms (중국 전자기업 하이얼(Haier)의 글로벌화 사례연구)

  • Kim, Young-Rai;Kang, Qing-Song
    • International Commerce and Information Review
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    • v.8 no.4
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    • pp.301-322
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    • 2006
  • The change of the global environment, especially the development of the communication and transportation and the decrease of the trade barrier promotes the progress of globalization. Under this background, the globalization progress of Chinese electronic firms is also pushed forward, compared with the early firms, which is being quickly shortened. This study has some purposes. First, this tries to investigate the growth process of the Chinese electronics firms, by which reveals the progress of the global competition ability and the background of promoting their rapid globalization. Second, this study estimates and analyzes the implemented process of Haier's globalization strategy, which is the Chinese most representative global Firm. Finally, this article elaborates the globalization of Chinese firms and the apocalypse of the Korean firms and also shows the corresponding projects for them.

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An Experimental Study on Bond Strength Progress of Fold Mortar Permanent Form of Manufacturing at Field (현장 가공이 가능한 모르터 영구거푸집의 부착강도 증진을 위한 실험적 연구)

  • 김우재;김성식;임남기;김영희;정상진
    • Proceedings of the Korea Concrete Institute Conference
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    • 2000.04a
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    • pp.853-858
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    • 2000
  • According to the results of this research, Production of Fold Mortar Permanent - Form was found to be possible by Mortar. Th FP-Form (Fold Permanent-Form) mortar had compress strength 580kgf/$\textrm{cm}^2$. FP-Form model was made by the result of the first research. There was no minute-crack on beam form and the outer surface of form was very smooth, and those qualities it were made possible hand-mad by experiment. This study is about bond strength progress of FP-Form that developed for the form work rationalization and systematization. The result of this study follows; (1) Fluidity and strength development of mortar which used for FP-Form are satisfied (2) After study on getting good bond strength progress, inside-uneven type presents the better suitableness, and wire netting V-type presents the better shear strength.

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