• Nuclear Engineering and Technology
• /
• 제48권2호
• /
• pp.495-504
• /
• 2016

International standards recommend typical phases to be included within any national program for the development of a geological repository dedicated to disposal of the high level radioactive wastes generated in countries using nuclear power. However, these are not universally applicable and the content of each of these phases may need to be adapted for each national situation and regulatory and institutional framework. Several national geological repository programs have faced failures in schedules and have revised their programs to consider an adapted phased management approach. The authors have observed that in the case of those countries in the early phases of a geological repository program where boundary conditions have not been fully defined, international recommendations for handling delays/failures in the national program might not immediately help. This paper considers a case study of the influences of the national context risks on the current planning schedule of the Romanian national geological repository. It proposes an optimum solution for an integrated response to any significant adverse impact arising from these risks, enabling sustainable program planning.

• Journal of Information Science Theory and Practice
• /
• 제7권1호
• /
• pp.39-51
• /
• 2019

Open access is a paradigm whereby the electronic versions of scholarly publications are made freely accessible without any restrictions. It is actively promoted globally and is also promoted domestically in accordance with this global trend. However, there is a growing need to evaluate existing activities and to seek policies for the steady spread of open access. This study examines the necessity of switching to a national repository from existing institutional repositories through policy direction analysis of open repositories. We examined domestic open access policies by analysing various overseas cases and the situation in South Korea. Finally, we determined the validity of investment in a national repository by analysing its social and economic impacts using the modified Solow-Swan model. The main parameters for applying the modified Solow-Swan model were estimated, and the domestic research and development expenditure was predicted via a regression method. Then, we applied a range of rate of returns to research and development (10% to 50%) to various scenarios and examined the effects of increasing accessibility and efficiency by 1% to 10%. We found that the implementation of a national open access repository in South Korea would have a substantial impact (to the tune of 147 billion won), without considering the potential costs of such a repository. Based on the estimates of the social and economic impact of a national repository, the implementation of a national open access repository in South Korea is economically viable. Besides having beneficial social and economic impacts, a national repository is expected to enhance awareness of open access among Korean researchers and institutions.

• 한국도서관정보학회지
• /
• 제37권1호
• /
• pp.29-53
• /
• 2006

오늘날 급속한 인쇄출판물의 증가에 따라 도서관계는 심각한 장서의 소장공간 부족문제를 겪고 있다. 문제해결방안 도출을 위해 먼저 해외 주요국의 자료공동보존 실태를 소개하구 국내사례로 국립중앙도서관의 자료보존관과 국립디지털 도서관의 자료보존서고 등을 살펴보았다. 또한 국립중앙도서관에서 발행한 "공공도서관협력망 운영실태 자료집 2005"를 기초로 하여 국내 공공도서관간 자료보존 협력 및 운영실태를 분석하였다. 이를 근거로 본고는 도서관계의 소장공간 부족문제 해결방안으로 현재 국립중앙도서관을 중앙관으로 하고 487개 공공도서관이 참여하는 $\lceil$공공도서관협력만$\rfloor$ 활용하여 공동보존도서관 및 국가보존도서관 설립방안을 제안하였다.

• 정보관리연구
• /
• 제39권4호
• /
• pp.67-96
• /
• 2008

오픈액세스 리포지터리는 법적, 경제적, 기술적 장벽 없이 전 세계 이용자 누구라도 자유롭게 무료로 정보에 접근할 수 있도록 생산자와 이용자가 정보를 공유할 수 있는 지식정보 저장소를 의미한다. 본 연구에서는 기관 리포지터리(dCollection, DSpace@MIT)와 주제별 리포지터리(arXiv, PubMed Central)로 구분하여 각 리포지터리에서 제공하는 기능분석과 비교를 실시하였고 분석된 자료를 기초로 이용자 중심의 사용성 평가를 실시하였다． 정보에 대한 자유로운 접근과 공유가 중요시 되는 웹 2.0시대라 불리고 있는 현 시점에서, 오픈액세스 리포지터리에 대한 사용성 평가를 실시함으로서 향후 구축되는 리포지터리 개발에 기초자료가 될 수 있다는 점에서 그 의의가 있다고 할 수 있다.

• 한국비블리아학회지
• /
• 제33권3호
• /
• pp.179-203
• /
• 2022

본 연구는 국가오픈액세스플랫폼(AccessON)의 개인 연구저작물 리포지터리인 Self Archiving과 학회의 Journal Repository 서비스의 경제적 가치측정을 목적으로 수행되었다. 문헌조사와 서비스 수혜자 및 관계자 15명과의 심층면담, 국내 연구자 1,313명을 대상으로 한 설문조사를 토대로 가치 측정에 필요한 데이터를 수집하였다. Self Archiving의 가치는 시간가치법을 적용하여 연구자 개인의 연간 절감 시간가치를 측정하였다. 국내 연구자들의 실제 학술활동에 기반하여 연구자 시간당 인건비, 국내생산 OA 논문 편수 등과 같은 요소들을 측정한 후, 연도별 이용 목표치를 토대로 총 수요를 추정하여 총 가치를 산출하였다. Journal Repository는 시장유추법을 적용하여, 상용 서비스의 객단가를 분석하고 이를 토대로 절감비용을 산출하였다. 분석결과, 총 사업기간 8년 동안 Self Archiving의 가치는 1억 450만 원, Journal Repository는 312억 원으로 산출되었다. 두 서비스의 총 가치는 8년간 총 313.5억 원, 연평균 390억 원으로 추정되었다. OA 환경 구축을 위한 핵심 전략인 개인 및 학회 리포지터리 서비스의 경제적 가치를 핵심 수혜자 관점에서 실증적으로 추정했다는 데서 본 연구의 의의를 찾을 수 있다.

• Proceedings of the National Institute of Ecology of the Republic of Korea
• /
• 제2권2호
• /
• pp.139-143
• /
• 2021

In this study, data repository information registered in re3data (re3data.org), a research data registry, was collected. Based on collected data, the current status was analyzed for 354 repositories (approximately 14% of total repositories) in the field using keywords in the ecological field suggested by two experts. Major metadata formats used to describe data in ecological research data repositories include Federal Geographic Data Committee Content Standard for Digital Geospatial Metadata (FGDC/CSDGM), Dublin Core, ISO 19115, Ecological Metadata Language (EML), Directory Interchange Format (DIF), Darwin Core, Data Documentation Initiative (DDI), and DataCite Metadata Schema. The number of ecological repositories according to country is 102 in the US, 34 in Germany, 31 in Canada, and one in Korea. A total of 771 non-profit organizations and 12 for-profit organizations are involved in the construction of the ecological field research data repository. Data version control ratio of the ecological field research data repositories registered in re3data was analyzed to be somewhat higher (86.6%) than the total ratio (83.9%). Results of this study can be used to establish policies to build and operate a research data repository in the ecological field.

• International Journal of Knowledge Content Development & Technology
• /
• 제8권1호
• /
• pp.79-89
• /
• 2018

We collected and analyzed data from e3data.org, which is a global registry of data repository services. We analyzed data profile for three leading Asian economies-Korea, China, and Japan-against the reference data for other participating countries. In particular, we examined how individual countries contribute to the repository, organizational type, versioning and product quality management, and subject tagging. We come to the conclusion that all three Asian countries still fall short in terms of involvement. As for participating institutions, there are 7 from Korea, 64 from China, and 120 from Japan. Among Chinese organizations, 3 are profit, 61 non-profit, and 37 organizations (which yields 1.8%) are involved in repository building. In Japan, there is 1 is commercial and 119 non-profit organizations, of which 57 (3.0%) are involved in repository building. All 7 organizations from Korea are non-profit, and 6 of them (0.3%) are involved in repository building. As regards versioning and product quality management, Korea, China, and Japan are up to par with other countries. Subject analysis reveals that Korea contributes more to geosciences, Japan to physics and geosciences, while China, unlike Korea and Japan, is more active in life sciences. It is hoped that this study will help planning domestic infrastructure for research data repositories with proper consideration for specific research domains and national characteristics.

• International Journal of Knowledge Content Development & Technology
• /
• 제10권1호
• /
• pp.7-20
• /
• 2020

For research data to be shared without legal, financial and technical barriers in the Open Science era, data repositories must have the functional requirements asked by DMP and CoreTrustSeal. In order to derive functional requirements for the data repository, this study analyzed the Data Management Plan (DMP) and CoreTrustSeal, the criteria for certification of research data repositories. Deposit, Ethics, License, Discovery, Identification, Reuse, Security, Preservation, Accessibility, Availability, and (Meta) Data Quality, commonly required by DMP and CoreTrustSeal, were derived as functional requirements that should be implemented first in implementing data repositories. Confidentiality, Integrity, Reliability, Archiving, Technical Infrastructure, Documented Storage Procedure, Organizational Infrastructure, (Meta) Data Evaluation, and Policy functions were further derived from CoreTrustSeal. The functional requirements of the data repository derived from this study may be required as a key function when developing the repository. It is also believed that it could be used as a key item to introduce repository functions to researchers for depositing data.

• Nuclear Engineering and Technology
• /
• 제55권8호
• /
• pp.2889-2896
• /
• 2023

The waste acceptance criteria for heavy metals in mixed waste should be developed by reflecting the leaching behaviors that could highly depend on the repository design and environment surrounding the waste. The current standards widely used to evaluate the leaching characteristics of heavy metals would not be appropriate for the silo-type repository since they are developed for landfills, which are more common than a silo-type repository. This research aimed to explore the leaching behaviors of cementitious waste with Pb, Cd, and Sb metallic and oxide powders in an environment simulating a silo-type radioactive waste repository. The Toxicity Characteristic Leaching Procedure (TCLP) and the ANS 16.1 standard were employed with standard and two modified solutions: concrete-saturated deionized and underground water. The compositions and elemental distribution of leachates and specimens were analyzed using an inductively coupled plasma optical emission spectrometer (ICP-OES) and energy-dispersive X-ray spectroscopy combined with scanning electron microscopy (SEM-EDS). Lead and antimony demonstrated high leaching levels in the modified leaching solutions, while cadmium exhibited minimal leaching behavior and remained mainly within the cement matrix. The results emphasize the significance of understanding heavy metals' leaching behavior in the repository's geochemical environment, which could accelerate or mitigate the reaction.

• 한국방사성폐기물학회:학술대회논문집
• /
• 한국방사성폐기물학회 2009년도 학술논문요약집
• /
• pp.187-187
• /
• 2009

Opening of fractures induced by shear dilation or normal deformation can be a significant source of fracture permeability change in fractured rock, which is important for the performance assessment of geological repositories for spent nuclear fuel. As the repository generates heat and later cools the fluid-carrying ability of the rocks becomes a dynamic variable during the lifespan of the repository. Heating causes expansion of the rock close to the repository and, at the same time, contraction close to the surface. During the cooling phase of the repository, the opposite takes place. Heating and cooling together with the, virgin stress can induce shear dilation of fractures and deformation zones and change the flow field around the repository. The objectives of this work are to examine the contribution of thermal stress to the shear slip of fracture in mid- and far-field around a KBS-3 type of repository and to investigate the effect of evolution of stress on the rock mass permeability. In the first part of this study, zones of fracture shear slip were examined by conducting a three-dimensional, thermo-mechanical analysis of a spent fuel repository model in the size of 2 km $\times$ 2 km $\times$ 800 m. Stress evolutions of importance for fracture shear slip are: (1) comparatively high horizontal compressive thermal stress at the repository level, (2) generation of vertical tensile thermal stress right above the repository, (3) horizontal tensile stress near the surface, which can induce tensile failure, and generation of shear stresses at the comers of the repository. In the second part of the study, fracture data from Forsmark, Sweden is used to establish fracture network models (DFN). Stress paths obtained from the thermo-mechanical analysis were used as boundary conditions in DFN-DEM (Discrete Element Method) analysis of six DFN models at the repository level. Increases of permeability up to a factor of four were observed during thermal loading history and shear dilation of fractures was not recovered after cooling of the repository. An understanding of the stress path and potential areas of slip induced shear dilation and related permeability changes during the lifetime of a repository for spent nuclear fuel is of utmost importance for analysing long-term safety. The result of this study will assist in identifying critical areas around a repository where fracture shear slip is likely to develop. The presentation also includes a brief introduction to the ongoing site investigation on two candidate sites for geological repository in Sweden.