공학적방벽 현장실증 시스템 (IN-DEBS) 개발을 위한 해외 실증연구 현황 분석

이민수,최희주,이종열,이창수,이재완,김인영,Lee, Minsoo,Choi, Heui-Joo,Lee, Jong-Youl,Lee, Changsoo,Lee, Jae-Owan,Kim, Inyoung 한국방사성폐기물학회 2014 방사성폐기물학회지 Vol.12 No.2

본 연구에서는 한국원자력연구원 부지 내 KURT 연구시설에 심지층 처분실증시험을 수행할 목적으로 사전 해외현황조사를 실시하였다. 고준위폐기물 심지층 처분을 목적으로 지하연구시설을 구축한 나라들을 대상으로 현재 수행되었거나, 수행이 진행 중인 공학적방벽 성능평가 시험들을 조사하였다. 주요 실증시험으로는, 스웨덴/프랑스 TBT, 스웨덴 LOT, 스위스 HEE, 벨기에 PRACLAY, 스페인 FEBEX, 일본 HORONOBE, 및 캐나다 BCE 등이었다. 각 실증시험에 대하여 시험의 목적, 시험체의 구성, 시험조건, 세부 구성도, 측정 항목, 측정기기, 및 도출된 결과 등을 구체적으로 조사하였으며, 시험결과보다는 시험목적 및 시험물의 구축방법 파악에 더 집중하였다. 왜냐하면, 각국의 공학적방벽 성능시험방법의 검토를 통해 향후 KURT에서 추진하게 될 공학적방벽 실증시설의 설계에 도움을 얻고, 다양한 성능시험을 동시에 수행할 수 있도록 하기 위해서였다. 향후 KURT 확장을 통해 공학적방벽 성능시험 터널을 확보하고, 중규모의 성능 시험시연을 추진하게 될 예정이다. 본 기술검토를 통해 이 때 추진할 시험내역과 시험체의 구성 및 크기 등의 상세 설계에 필요한 기초적인 지식을 얻고자 하였다. The worldwide Status-of-Art survey for the in-situ experiments of the engineered barrier system for HLW underground disposal was performed as a preliminary action for the design of the in-situ demonstration at KURT. Some nations, which have executed or is ongoing the in-situ experiments at their underground research facilities, were summarized in this review. The demonstration projects reviewed were TBT/Sweden-France, LOT/Sweden, HE-E/Switzerland, PRACLAY/Belgium, FEBEX/Spain, HORONOBE/Japan, and BCE/Canada. The investigated items for the projects were mainly their purposes, constitutional structures, test conditions, monitoring parameters and the measuring tools, and test results. In this review, the hardware design and the assembling of the test system were more concentrated rather than their experimental results, because the purpose of this review is to achieve the necessary information for the practical design of the in-situ experiment to be installed at KURT. A mid scale in-situ demonstration of EBS at KURT, that is called IN-DBES, will be launched right after the completion the expanding project of KURT in 2015. It is hoped that the structural design, installing methods, hardware equipments required in the establishment of IN-DEBS will be referred on this review.

심부시추공 처분용기 재료로서 SiC 세라믹의 적합성 평가

이민수,이종열,최희주,유맑고밝게빛나라,지성훈,LEE, Minsoo,LEE, Jongyoul,CHOI, Heuijoo,YOO, MalGoBalGaeBitNaLa,JI, Sunghoon 한국방사성폐기물학회 2018 방사성폐기물학회지 Vol.16 No.2

To overcome the low mechanical strength and corrosion behavior of a carbon steel canister at high temperature condition of a deep borehole, SiC ceramics were studied as an alternative material for the disposal canister. In this paper, a design concept for a SiC canister, along with an outer stainless steel container, was proposed, and its manufacturing feasibility was tested by fabricating several 1/3 scale canisters. The proposed canister can contain one PWR assembly. The outer container was also prepared for the string formation of SiC canisters. Thermal conductivity was measured for the SiC canister. The canister had a good thermal conductivity of above $70W{\cdot}m^{-1}{\cdot}K^{-1}$ at $100^{\circ}C$. The structural stability was checked under KURT environment, and it was found that the SiC ceramics did not exhibit any change for the 3 year corrosion test at $70^{\circ}C$. Therefore, it was concluded that SiC ceramics could be a good alternative to carbon steel in application to deep borehole disposal canisters.

고준위폐기물 심부시추공 처분을 위한 처분용기 접속장치의 개발

이민수,이종열,지성훈,LEE, Minsoo,LEE, Jongyoul,JI, Sung-Hoon 한국방사성폐기물학회 2018 방사성폐기물학회지 Vol.16 No.2

In this study, to replace the 'J-slot joint', a joint device between a disposal canister and an emplacement jig in Deep Borehole Disposal process, a novel joint device was designed and tested. The novel joint device was composed of a wedge on top of a disposal canister and a hook box at the end of a winch system. The designed joint device had merits in that it can recombine an emplaced canister freely without the replacement of the joint component. Moreover, it can be applied to various emplacement jigs such as drill pipes, wire-lines, and coiled tubing. To demonstrate the designed joint device, the joint device (${\Phi}110mm$, H 148 mm), a twin canister string (${\Phi}140mm$, H 1,105 mm), and a water tube (${\Phi}150mm$, H 1,500 mm) as a borehole model were manufactured at 1/3 scale. As deployment muds, Na-type bentonite (MX-80) and Ca-type (GJ II) bentonite muds were prepared at solid contents of 7wt% and 28wt%, respectively. The manufactured joint device showed good performance in pure water and viscous muds, with an operation speed of $10m{\cdot}min^{-1}$. It was concluded that the newly developed joint device can be used for the emplacement and retrieval of a deep disposal canister, below 3~5 km, in the future.

우리나라 해안에 서식하는 염생식물의 분포 특징

이민수,김성환,정회인,LEE, MINSOO,KIM, SEONGHWAN,JUNG, HOEIN 한국해양학회 2019 바다 Vol.24 No.1

본 조사는 국가해양생태계종합조사의 일부로 2017년 5월부터 2018년 8월까지 이루어졌으며, 우리나라 전체 해안에 설정된 157개 정점을 중심으로 조간대 및 해안사구와 사빈지역에서 수행하였다. 조사결과 염생식물은 총 72종이 확인되었으며 분포 면적은 총 $1,813,546m^2$이었다. 서해안 권역에서는 칠면초 군락이 우점 군락이며, 남해안 권역에서는 갈대 군락이 우점 군락이고, 동해안 권역에서는 통보리사초 군락이 우점 군락이었다. 조사지역 전체로는 갈대 군락이 $1,136,643m^2$ (62.7%)으로 가장 넓었다. 상위 11개 우점 식물 군락은 갈대 군락, 칠면초 군락, 해홍나물 군락, 갯잔디 군락, 통보리사초 군락, 갯그령 군락, 기수초 군락, 모새달 군락, 지채 군락, 좀보리사초 군락, 천일사초 군락이며, 특히 갈대 군락과 칠면초 군락은 전체 면적의 75.9%를 차지하여 압도적이었다. 우리나라 해안의 염생식물 분포는 대부분 기후 차이보다는 서식처의 형태가 염생식물의 서식 형태를 결정짓는 주요한 요인인 것으로 나타났으며, 또한 같은 권역 내에서도 서식처의 다양성 정도에 띠라 염생식물의 출현종과 서식범위 등에서 차이를 보였다. This survey was conducted from May 2017 to August 2018 as part of the National Marine Ecosystem Surveys sponsored by MOF (Ministry of Oceans and Fisheries) and KOEM (Korea Marine Environment Management Corporation). The survey was conducted at 157 stations including intertidal zones, coastal sand dunes and beaches. A total of 72 species of halophytes were identified and the total vegetated area was $1,813,546m^2$ in coastal waters of Korea. In the west coast region, Suaeda japonica was the dominant species, Phragmites communis in the southern coast, and Carex kobomugi in the east coast. Phragmites communis was the most dominant with $1,136,643m^2$ (62.7%) in the whole surveyed area. The top 11 dominant plants are Phragmites communis, Suaeda japonica, Suaeda maritima, Zoysia sinica, Carex kobomugi, Elymus mollis, Suaeda malacosperma, Phacelurus latifolius, Triglochin maritimum, Carex pumila and Carex scabrifolia, and Phragmites communis and Suaeda japonica accounted for 75.9% of the total vegetated area. The distribution of halophyte on the coast of Korea was determined by the habitat types rather than the climate ranges, and there was a difference in the species diversity and habitat range of the halophyte depending on the habitat diversities within the same area.

PSO 알고리즘을 적용한 바이오 칩 데이터의 분류화 기법

이민수(Minsoo Lee) 한국정보과학회 2012 정보과학회 컴퓨팅의 실제 논문지 Vol.18 No.2

바이오 칩은 바이오 정보를 실험하기 편리하도록 만든 것으로 DNA칩은 주로 유전자 실험에 쓰이고 실험 후 여러 분석 정보를 제공한다. DNA칩에 의해 제공된 데이터는 2차원 행렬로 표현되고 하나의 축은 유전자를 나타내며 다른 하나의 축은 샘플정보를 나타낸다. 이들 실험 정보에서 의미 있는 데이터를 추출하는 것은 매우 중요한 과제이다. 의미 있는 정보를 찾기 위한 방법으로 많이 쓰이는 방법 중 분류화가 있으며 생태계 모방 알고리즘의 하나인 Particle Swarm Optimization 알고리즘을 사용하여 방대한 양의 DNA칩 데이터의 효율적인 처리와 분석을 위한 PSO 분류화 알고리즘을 제안한다. Among the bio chips the DNA chips are used for experiments on genes and provide useful information that could be further analyzed. The data provided by the DNA chips could be represented as a two dimensional matrix, in which one axis represents genes and the other represents samples. Finding meaningful data from the experiment data has become a very important issue. In this paper, we propose a classification mechanism using the Particle Swarm Optimization algorithm to process and analyze the large amount of data from DNA chips.

정보통신기술 활용에 대한 인식과 장애요인 : 한국농수산대학 학생들을 대상으로

이민수(Minsoo Lee) 한국농촌지도학회 2021 농촌지도와 개발 Vol.28 No.4

This study aims to examine agricultural college students’ perception of readiness and barriers towards im-plementation of ICT program. Data were gathered from 175 student of agricultural college in Korea. Descriptive statistics, exploratory and confirmatory factor analysis, t-test, and one-way ANOVA were applied to analyze the data. Results reveal that technology usefulness perception scores were high among the readiness compo-nents, but students readiness and school infrastructure readiness were low. Results also shows that policy and technology factors were also seen as the main barriers of ICT program implementation. Findings show that demographic variables did not significantly affect readiness and obstacles. The results of this study can provide guidance to the government or agricultural college organizations when considering readiness and bar-riers towards implementing ICT programs. In addition, this study contributes to improve the theory of adoption behavior and contributes to the foundation for future research aimed at improving our understanding of agri-cultural college students behavior.

이기종 임베디드 디바이스 간 정보 공유를 통한 Zero-shot Recognition

이민수(Minsoo Lee),이인호(Inho Lee),박영준(Yongjun Park) 한국정보과학회 2023 한국정보과학회 학술발표논문집 Vol.2023 No.6

웹 기반의 효율적인 XML 질의 도구의 구현

이민수(Minsoo Lee),박유림(Youlim Park) 한국정보과학회 2004 한국정보과학회 학술발표논문집 Vol.2004 No.5

다중죠인 질의 최적화를 위한 병렬 유전 알고리즘

이민수(Minsoo Lee),김혁만(Hyeokman Kim),이석호(Sukho Lee) 한국정보과학회 1995 한국정보과학회 학술발표논문집 Vol.22 No.1

본 연구에서는 다중죠인 질의에 대하여 최적에 가까운 죠인순차를 빠른 시간내에 결정할 수 있는 기법을 제안한다. 이 최적화 기법은 유전 알고리즘을 기반으로 하였으며, 이를 위하여 병렬 데이타베이스 환경에서의 다중죠인 질의 수행 모델을 설정하고, 이 모델에 따라 유전 알고리즘을 구성하는 요소들을 정의하였다. 특히, 본 연구에서는 다중죠인 질의 최적화 문제에 잘 적용되는 새로운 교차(crossover) 연산을 정의하였고, 최적화 과정의 병렬화를 고려하여 앞으로 병렬 환경의 표준으로 많이 거론되는 PVM상에서 병렬 유전 알고리즘으로 구현하였다.

Analysis of Storytelling in Brand Environment

Lee, Minsoo(이민수) 한국디자인지식학회 2014 디자인지식저널 Vol.30 No.-

Designing brand environment has many similarities to other designing in that they commonly intend to interact and communicate effectively with the relevant audience. This paper searches for an effective design method that can incorporate the reflective aspect into brand exhibitions to improve communication between the brand and the audience and provide more engaging brand experiences to the customer. In order to achieve this aim, this paper focuses on the reflective level among the three levels(visceral, behavioral and reflective) of Emotional Design and narrative branding methodology, which provides a more exciting and enjoyable motivation to the consumers. Assuming that consideration of the reflective aspect in brand exhibition will enable a richer storytelling, this paper proposes two major categories of the stories that designers can infuse into the brand environments : stories about personal value and stories about social values. To examine this research question, this paper analyzes two successful cases that incorporated the reflective design to convey the main message. In addition, this paper conduct interviews with design experts in the museum exhibit and trade show, who attest to the importance of reflective stories in the exhibition design. My analysis and interview results support the idea that the brand exhibition that has a story can be a tool to construct a strong and compelling brand image by providing memorable brand experiences to the customer.