acknowledges NRF (National Research Foundation of Korea) Grant funded by the Korean Government (NRF-2017H1A2A1044205-Global Ph.D. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.ĭata Availability: The data underlying the results presented in the study are available from Web of Science ( ).įunding: This work was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education (2016R1D1A1B03932590). ![]() Received: SeptemAccepted: JanuPublished: February 8, 2019Ĭopyright: © 2019 Kim et al. Julius-Maximilians-Universitat Wurzburg, GERMANY Our results can be used and extended when building national policies for big science.Ĭitation: Kim H, Hong I, Jung W-S (2019) Measuring national capability over big science’s multidisciplinarity: A case study of nuclear fusion research. This relation is a unique feature of nuclear fusion compared to other science fields. The gravity model points out that two countries collaborate less in device, diagnostics, and plasma research if they have comparative advantages in different topics. Time points of their rise and fall are related to tokamak operation, highlighting the importance of large facilities in big science. Our approach captures not only the growth of China, India, and the Republic of Korea but also the decline of Canada, Japan, Sweden, and the Netherlands. Here, to explore the scientific effects of tokamaks, we map a country’s research capability in nuclear fusion research with normalized revealed comparative advantage on five topical clusters-material, plasma, device, diagnostics, and simulation-detected through a dynamic topic model. A nuclear fusion device called the “tokamak” is a source of great interest for many countries because it ideally generates sustainable energy expected to solve the energy crisis in the future. In the era of big science, countries allocate big research and development budgets to large scientific facilities that boost collaboration and research capability.
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