• 조명전기설비학회논문지
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• 제26권4호
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• pp.22-27
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• 2012

In the study, an XML based platform is presented for LED dimming control. The XML platform is designed in an open architecture, providing with interoperability and scalability. Also, it enables the accommodation of off-the-shelf wired and wireless communication protocols and make it fast and easy to implement various application programs for LED dimming, comparing to the legacy platforms. In the study, a test best has been built for demonstration of the merits of the XML platform with dimming control by responding to the scenario of demand response event. Benefit calculation of the power saving and incentive from demand response shows the applicability and usefulness of the XML platform.

• 정보보호학회논문지
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• 제26권3호
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• pp.809-820
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• 2016

스마트그리드는 사물인터넷의 핵심 응용서비스이고, 그 중 가장 핵심적인 구성요소인 AMI((Advanced Metering Infrastructure)는 전기사업자와 소비자의 접점에 위치하고 있으며, 스마트 미터는 소비자의 전기사용을 기록하고 사업자에게 전달하는 역할을 한다. 본 논문에서는 스마트그리드에서 소비자와 직접 맞닿아 있는 스마트 미터를 중심으로 AMI에 대한 NESCOR에서 제시하고 있는 사이버공격 및 피해 시나리오를 기반으로 피해비용을 산정한다. 본 연구의 결과는 정책입안자나 전기사업자가 스마트그리드 관련 투자의사결정을 하는데 참고가 될 수 있을 것이다.

• 한국전자통신학회논문지
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• 제7권2호
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• pp.425-431
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• 2012

로봇의 실외 주행의 경우 실내 주행과 달리 실외 환경 전체에 대한 지도를 미리 작성할 수 없어 대부분 GPS를 이용하고 있으며 지도에 기반한 연구는 거의 없는 상황이다. 본 논문에서는 경사 구간이 없는 2차원 평면의 실외환경에서 정밀 GPS를 사용하여 GPS 데이터를 MCL 알고리즘에 적용하여 실외 로봇 위치 추정을 구현하고, 이를 적용하여 간단한 임무 시나리오를 수행하였다. 그리고 미들웨어 기반의 OpenRTM을 적용하여 관리자가 서버를 통해 원격으로 로봇을 제어하거나 상황을 관제할 수 있도록 하였다.

• Asian Journal of Innovation and Policy
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• 제2권1호
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• pp.20-36
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• 2013

In this practice article, we present the results of a scenario planning approach that is a hybrid of the three main schools of thought. Our research objective was to study the future of Interactive Digital Media applications such as online music, on-demand television and massively multi-player online role-playing games. Our approach, while essentially qualitative in nature, nevertheless draws from the rigors of the quantitative school in identifying and then tracking the significant dimensions of analysis that emerge over time as strands of events leading to plausible scenarios. Our empirical analysis revealed mapping strands to three themes - ownership, distribution and innovation - which we used in an expert validation exercise to formulate scenarios. We present and discuss the major findings and implications of this empirical investigation. In a nutshell, we conjecture that an open, competitive IDM marketplace with performance safeguards may serve both and lead to a win-win scenario. While there are differences among IDM sectors, a unified approach to regulation and policy would be effective.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제8권11호
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• pp.3955-3966
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• 2014

With the exponentially increasing Internet traffic and emergence of more versatile and heterogeneous applications, the design of datacenter networks (DCNs) is subject to unprecedented requirements for larger capacity and more flexible switching granularities. Envisioning Optical-Orthogonal Frequency Division Multiplexing (O-OFDM) as a promising candidate for such a scenario, we motivate the use of O-OFDM as the underlying switching technology in order to provide sufficient switching capacity and elastic bandwidth allocation. For this purpose, this article reviews the recent progresses of DCN deployment and assesses the scenario where the O-OFDM transmission and switching technology is employed in the underlying transport plane. We discuss the key issues of the datacenter-oriented O-OFDM optical networks, and in particular, elaborate on a number of open issues and solutions including system interconnection architecture, routing and resource assignment, survivability, and energy-efficiency.

• 한국컴퓨터정보학회:학술대회논문집
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• 한국컴퓨터정보학회 2023년도 제67차 동계학술대회논문집 31권1호
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• pp.131-132
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• 2023

본 연구는 R&D 전주기 지원을 위해 과제 기획 및 수행과 연구성과 창출 시나리오를 통합 설계하고, 연구자 관점에서의 실효성과 유용성을 검증하기 위해 프로토타입으로 구현하는 것을 목표로 한다. 기존 연구가 R&D 전주기를 몇 가지 활동으로 세분화하고 모형화하였지만, 개념적 설계에만 초점을 맞추고 있다는 한계를 극복하고자, 본 연구에서는 산업계 및 학계 전문가와 협력하여 R&D 경험을 시나리오에 반영하고 이를 프로토타입으로 실증하였다.

• 한국경영과학회지
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• 제40권1호
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• pp.5-19
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• 2015

Literatures on open innovation have two major limitations. First, either on a firm level or on an industry level did they analyze the open innovation issues. The results of a firm's innovation can be diffused through the whole network and the firm can learn back from the network knowledge. Prior literatures did not consider the feedback loop among firms and network in which the firms are involved. Second, most open innovation research had a static perspective on firm's innovation performance. Since the diffusion, spill-over and learning among network members are involved over time, the open innovation is intrinsically dynamic. From the dynamic perspective, we can appreciate the fundamental attributes of the open innovation network which involves diverse firms, research institutes, and universities. In order to overcome the limitations, we suggest a dynamic model for open innovation network. We build an agent-based model which consists of heterogeneous firms. The firms are connected through a scale-free network which is formed by preferential attachment. Through the diverse scenario of simulation, we collect massive data on the firm level and analyze them both on firm and industry level. From the analysis, we found that, on industry level, the overall performance of open innovation increases as the internal research capability, absorptive capacity, and learning curve coefficient increase. Noticeably, as the deprecation rate of knowledge increases, the variability of knowledge increases. From the firm level analysis, we found that the industry-level variables had a significant effect on the firm's innovation performance lasting through all the time, whereas the firm-level variables had only on the early phase of innovation.

• 방사성폐기물학회지
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• 제2권4호
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• pp.253-262
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• 2004

Construction of tunnels in a deep crystalline host rock for a potential High-Level Radioactive Waste(HLW) repository inevitably generates an excavation disturbed zone (EDZ). There have been a series of debates on whether a permeability in an EDZ increases or not and what would be the maximum depth of an EDZ. Recent studies show mixed opinions on permeability. However, there has been an international consensus on the thickness of an EDZ; 30 cm for TBM and 1 meter for controlled blast. One of the impacts of an EDZ is on determining the distance between adjacent deposition holes. The void gap by the excavation hinders relaxation of temperature profiles so that the current Korean reference designing distance between holes should be stretched out more to keep the maximum temperature in a buffer region below 100 degrees Celsius. The other impact of an EDZ is on the long-term post closure radiological safety. To estimate the impact, the reference scenario, the well scenario, is chosen. Released nuclides diffuse through a bentonite buffer region experiencing strong sorption and reach a fracture surrounded by a porous medium. Inside a fractured porous region, radionuclides migrate by advection and dispersion with matrix diffusion into a porous medium. Finally, they reach a well assumed to be a source of potable water for local residents. The annual individual dose is assessed on this well scenario to find out the significance of an EDZ. A profound sensitivity study was performed, but all results show that the impact is negligible. Even though the role of an EDZ turns out to be limited on overall safety assessment, still it is worthwhile to study the chemical role of an EDZ, such as a potential source for natural colloids, potential sealing of an open fracture by fine clay particles generated by the process of an EDZ, and alteration of a sorption mechanism by an EDZ in the future.

• 한국전자통신학회논문지
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• 제7권6호
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• pp.1245-1258
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• 2012

본 연구는 미래예측방법으로 많이 활용되고 있는 시나리오플래닝 방법론을 적용하여 한국 전자정부 기술개발의 바람직한 미래상을 도출하였다. 최근 웹에서 유비쿼터스로의 지식정보화사회의 급속한 진행으로 IT와 컴퓨팅기술에 있어, 전 세계적으로 클라우드 컴퓨팅이라는 새로운 패러다임이 불고 있다. 따라서 이는 한국 정부 및 각국 정부에 있어, 전자정부 구축과 추진에 있어서의 주목할 만한 전환점이 되고 있다. 본 연구는 클라우드 컴퓨팅 기술과 함께하는 한국 전자정부의 상대적 미래우위전략을 찾고자, 기술개발 방향을 고찰하였으며, 그 결과 한국의 전자정부에 부합하는 -서비스 수준관리(SLA)나 자원제공과 같은- 하드웨어 및 인터넷 데이터센터 관련 기술과 함께, -오픈API나 자원가상화 같은- 소프트웨어 (응용)솔루션 기술에 관련된 클라우드 컴퓨팅 기술의 중점적 개발이 그 추진할 전략이었다.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2011년도 춘계학술대회 논문집
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• pp.456-461
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• 2011

Recently the design specification has been advanced with preventing earthquake disaster in Korea because of increasing occurrence of large size earthquake. A composite plate with ductile fiber is proposed, which can enhance the performance of built tunnel in both strength and ductility. This study is to focus to verify the effect of strengthening of existing tunnels which is built without earthquake type load scenario, so that it can provide the safety of existing urban subway system against earthquakes.