“…Numerous topics of N&N have been studied, such as impact evaluation of N&N (Bartol & Stopar, 2015;Kostoff, Barth, & Lau, 2008;Leydesdorff, 2013), nano-competition or "nanorace" among countries or regions or institutions (Gorjiara & Baldock, 2014;Guan & Wei, 2015;Leydesdorff & Wagner, 2009;Wong, Ho, & Chan, 2007), technological life cycle of N&N (Anick, 2007;Milanez et al, 2013), and mapping of N&N (Bartol & Stopar, 2015;Kostoff, Koytcheff, & Lau, 2007;Mohammadi, 2012).…”