• Geomechanics and Engineering
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• 제16권4호
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• pp.363-373
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• 2018

The evaluation of Thermo-Hydro-Mechanical (THM) coupling behavior is important for the development of underground space for various purposes. For a high-level radioactive waste repository excavated in a deep underground rock mass, the accurate prediction of the complex THM behavior is essential for the long-term safety and stability assessment. In order to develop reliable THM analysis techniques effectively, an international cooperation project, Development of Coupled models and their Validation against Experiments (DECOVALEX), was carried out. In DECOVALEX-2015 Task B2, the in situ THM experiment that was conducted at Horonobe Underground Research Laboratory(URL) by Japan Atomic Energy Agency (JAEA), was modeled by the research teams from the participating countries. In this study, a THM coupling technique that combined TOUGH2 and FLAC3D was developed and applied to the THM analysis for the in situ experiment, in which rock, buffer, backfill, sand, and heater were installed. With the assistance of an artificial neural network, the boundary conditions for the experiment could be adequately implemented in the modeling. The thermal, hydraulic, and mechanical results from the modeling were compared with the measurements from the in situ THM experiment. The predicted buffer temperature from the THM modelling was about $10^{\circ}C$ higher than measurement near by the overpack. At the other locations far from the overpack, modelling predicted slightly lower temperature than measurement. Even though the magnitude of pressure from the modeling was different from the measurements, the general trends of the variation with time were found to be similar.

• 한국산학기술학회논문지
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• 제19권4호
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• pp.664-673
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• 2018

산업제어시스템(ICS, Industrial Control System)은 과거에는 폐쇄 네트워크로 운영되었으나 최근에는 정보통신 서비스와 연결되어 운영되면서 사이버 공격으로 인한 피해로 이어지고 있다. 이에 대한 대책으로 정보통신기반보호법이 제정되고 보안가이드라인이 배포되고 있지만 제어망에서 업무망으로의 일방향 정책만 있어 다양한 실제 제어 환경에 대한 보안가이드가 필요하며 국제 표준으로 IEC 62443의 경우 산업제어시스템 참조 모델을 정의하고 침입 차단 시스템을 이용한 영역 보안 모델을 제시하고 있으나 폐쇄 네트워크로 운영되는 산업제어망을 침입 차단 시스템만으로 외부 네트워크와과 연계하기에는 부담이 있다. 본 논문에서는 국내외 산업제어시스템 보안 모델 및 연구 동향을 분석하고 다양한 국내 산업제어망의 실제 연동 환경에 적용할 수 있는 산업제어시스템 보안 모델을 제안한다. 또한 현재 상용 경계 보안 제품들인 침입 차단 시스템, 산업용 침입 차단 시스템, 망 연계 장비, 일방향 전송 시스템 등의 보안성을 분석하였다. 이를 통하여 국내 구축 사례와 정책에 대한 비교를 통해 보안성이 향상되는 것을 확인하였다. 4차 산업혁명 시대를 맞이하여 스마트 팩토리, 스마트 자동차, 스마트 플랜트 등 다양한 산업제어 분야에 대한 보안 관리 방안에 적용할 수 있을 것이다.

• International Journal of Railway
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• 제6권4호
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• pp.139-147
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• 2013

TSR (Trans-Siberian Railway) route is losing price competitiveness versus Deep Sea route in the transportation from East Asia to Europe, including Moscow. To further attracting the containers to the TSR route, it will be necessary (1) to keep competitive through rate, linked to fluctuating Deep Sea rate; (2) to strengthen speed advantage; (3) to enforce seamless transportation system, including simplified customs clearance procedures. In transportation to Central Asia from East Asia (Korea and Japan), TSR is competitive versus TCR (Trans-China Railway), depending on destinations. Korea has been the leader in revitalizing the TSR route since 2000. Key contributors were affluent export containers to Russia and Central Asia, port of Busan, efficient maritime transport network to Far East Russia, and Korean forwarders' persistent efforts for activating the market. Korea and Japan have a possibility of cooperation in using the TSR route efficiently, such as organizing a joint block train to a same destination.

• 한국항해항만학회:학술대회논문집
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• 한국항해항만학회 2012년도 춘계학술대회
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• pp.507-509
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• 2012

국제수로기구는 수로정보의 표준화와 활용성 증진을 위해 ISO 19100 시리즈 GIS 표준을 수로분야로 확장한 S-100 표준을 수립하고, 이를 기반으로 한 S-10X 표준을 개발 중에 있다. 국제해사기구는 해사안전과 해양환경 보호를 위해 e-Navigation 전략을 추진 중에 있으며, e-Navigation 전 분야에 대한 정보화 표준 모델인 CMDS를 정의하고 S-100 표준을 기반으로 개발할 계획이다. e-Navigation 전략 추진 대상 영역을 해상부분, 네트워크부분, 육상부분으로 구분할 수 있는데, VTS는 육상 관제센터로서의 핵심적인 역할을 수행하고 있다. 본 연구에서는 S-100 표준 도입이 국제해사기구의 e-Navigation 전략을 통해 VTS에 미치는 영향에 대해 분석하였고, 향후 우리나라 VTS가 e-Navigation 전략 하에서 업무 고도화 및 기능개선을 위한 수로분야 협력방안을 제안하였다.

• Asian Pacific Journal of Cancer Prevention
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• 제16권1호
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• pp.1-8
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• 2015

The Japan National Committee for the Union for International Cancer Control (UICC) and UICC-Asia Regional Office (ARO) organized a Roundtable Discussion as part of the official program of the UICC World Cancer Congress 2014 in Melbourne, Australia. The theme for the Roundtable Discussion was "Looking Toward the Realization of Universal Health Care 'UHC' for Cancer in Asia" and it was held on December 5, 2014. The meeting was held based on the recognition that although each country may take a different path towards the realization of UHC, one point that is common to all is that cancer is projected to be the most difficult disease to address under the goals of UHC and that there is, therefore, an urgent and pressing need to come to a common understanding and awareness with regard to UHC concepts that are a priority component of a post-MDG development agenda. The presenters and participants addressed the issue of UHC for cancer in Asia from their various perspectives in academia and international organizations. Discussions covered the challenges to UHC in Asia, collaborative approaches by international organizations, the need for uniform and relevant data, ways to create an Asia Cancer Barometer that could be applied to all countries in Asia. The session concluded with the recognition that research on UHC in Asia should continue to be used as a tool for cancer cooperation in Asia and that the achievement of UHC would require research and input not only from the medical community, but from a broad sector of society in a multidisciplinary approach. Discussions on this issue will continue towards the Asia-Pacific Cancer Conference in Indonesia in August 2015.

• 항공우주정책ㆍ법학회지
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• 제17권
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• pp.111-132
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• 2003

항공운송산업은 그 성격상 국가간 인적 교류의 수단으로서의 중요성이 가장 높다. 항공에 의한 국가간 교류가 이루어지면 이에 따르는 파급효과 및 그 지속성이 타 산업에 비해 월등하기 때문에 항공운송산업에 대한 연구는 국제협력 또는 통합과 관련한 국가 정책은 물론 관련 산업분야의 측면에서 매우 중요하고 가치가 있다. 특히 최근 북한과의 경제교류가 활발해 짐에 따라 북한과의 연결교통망으로서 항공운송의 역할이 더욱 중요해지고 있다. 남북 정상회담이후 급격하게 증가되고 있는 남북간 항공기 운항이 정상적이 아닌 임시 직항로를 설정하여 운영하고 있고, 그 운항회수도 매년 증가하고 있는 점을 고려할때, 남북한 임시 직항로의 운영상 과제를 국제적으로 정한 기준으로 해결하지 아니한 상태에서 지속적으로 운영하는 것은 바람직하지 않다고 본다. 따라서, 본 연구는 남북한 민간항공의 협력이라는 큰 틀위에서 국가적 과업과 효과적인 항공정책의 수립을 위한 기초자료의 제공을 위해 군이통제하는 북한의 민항공에 대한 현황을 분석해 보고, 현재 남북 양국간에 진행중인 "남 북한간 민간항공기에 의한 협력 방안"으로서 "정부의 협력방안과 항공사간 협력방안"을 제시하였고 남북한간에 설정운영중인 "임시 직항로의 운영상 과제"에 대한 개선 대안으로서 임시직항로의 안전확보를 위해서 양국간에 항공관제협정을 체결하여 운영할 것을 제시하였고, 낙후된 기술 요원과 시설에 대한 지원도 하여줄 것을 제시하였다.

• International Journal of Fuzzy Logic and Intelligent Systems
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• 제9권1호
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• pp.10-15
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• 2009

With the development of techniques, robots are getting smaller, and the number of robots needed for application is greater and greater. How to coordinate large number of autonomous robots through local interactions has becoming an important research issue in robot community. Swarm Robot Systems (SRS) is a system that independent autonomous robots in the restricted environments infer their status from pre-assigned conditions and operate their jobs through the cooperation with each other. In the SRS, a robot contains sensor part to percept the situation around them, communication part to exchange information, and actuator part to do a work. Especially, in order to cooperate with other robots, communicating with other robots is one of the essential elements. Because Bluetooth has many advantages such as low power consumption, small size module package, and various standard protocols, it is rated as one of the efficient communicating technologies which can apply to small-sized robot system. In this paper, we will develop Bluetooth communicating system for autonomous robots. And we will discuss how to construct and what kind of procedure to develop the communicating system for group behavior of the SRS under intelligent space.

• Journal of Information Science Theory and Practice
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• 제8권4호
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• pp.40-54
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• 2020

This proposed work aims to understand the Korean Academic Circle (KAC)'s research trend on the "One Belt One Road" (OBOR) by employing a quantitative analysis of the recent research articles published by the KAC. To do so, this proposed research has used the well-known network analysis software, Ucinet 6, by which the papers on related topics are collected and filtered from Korea Citation Index. To perform the analytical selection, the proposed work has chosen 'keywords' as the core research object and performed analysis from transverse to longitudinal aspects, and from holistic to individual aspects, respectively; and from this, the KAC's research trend on OBOR is derived. The present work has established that the KAC's attention is continuously increasing on OBOR and has sustainability. Centered on the OBOR, Korean researchers have spread their studies in various dimensions ranging from the issues like China's political economy to Sino-Korea economic and trade exchanges, and so on. The KAC has even combined OBOR with Korea's international development initiatives, which can help Korea benefit from active and sustainable cooperation with China. Moreover, the proposed work has found that Korean researchers have also actively expressed their growing attention, highlighted Korea's interest, and showed concern about China hegemony and Sinocentrism in their recent documented research works.

• International Journal of Computer Science & Network Security
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• 제22권2호
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• pp.91-100
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• 2022

To support early intervention, it is necessary to develop programming system tools that enable accurate, valid, and reliable assessments and can help achieve reasonable, generalizable, and measurable goals. This study examined the Assessment, Evaluation, and Programming System (AEPS) used by associations of children with disabilities in Saudi Arabia to assess its suitability for children with intellectual disabilities. A group of 16 specialists with different professional backgrounds (including special education, physiotherapy, occupational therapy, speech therapy and psychology) from 11 associations of children with disabilities took part in semi-structured personal interviews. The study concluded that AEPS is generally suited for use with children with intellectual disabilities. However, its suitability depends on the type and severity of the child's disability. The more severe the disability, the less effective the AEPS is likely to be. On the basis of this finding the researchers formed interdisciplinary teams to organise and integrate the children's learning and assess the benefits of AEPS, including its accuracy and ability to achieve adaptive, cognitive, and social targets, enhance family engagement and learning and develop basic development skills. This study also identified obstacles associated with the use of AEPS. These include the lack of comprehensiveness and accuracy of the goal, lack of precision and non-applicability to large movements and the fact that it cannot be used with all children with intellectual disabilities. In addition, the research showed that non-cooperation within the family is a major obstacle to the implementation of the AEPS. The results of this study have several implications.

• 한국지반공학회:학술대회논문집
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• 한국지반공학회 2010년도 춘계 학술발표회
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• pp.338-350
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• 2010

As existing materials for ground reinforcement, chemical grout material using cementitous materials and waterglass was used. But many problems in terms of ground reinforcement effects were implicated. In this study, for development and applicability verification of new materials, viscosity, fluidity, permeability, Self-Leveling, keeping of drilled hole, antiwashout underwater, resistance of water (groundwater dilution and minimize material eluting) and the early strength and long-term strength characteristics of developed materials was confirmed, and material standards, and establishing construction standards for the various model tests were conducted. As a result, high viscosity, flowability, permeability and keeping of drilled hole characteristics are excellent, in addition to the early strength properties, dilution does nat occur to groundwater, including groundwater is available for dealing with environmental issues. Application of basic and reinforcement method by Filler function in addition to structure can also or development of a new concept can be expected. In addition, middle and large-diameter drilled shaft, micropile, ground anchors, soil-nailing, steel pipes multi-grouting reinforcement for cement injection process could be used enough to even be considered.