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A density functional theory study of structural, electronic, optical and magnetic properties of small Ag–Cu nanoalloys Abstract The structures and properties of 13-atom silver and copper bimetallic clusters are systematically investigated by density functional theory (DFT) in the theoretical frame of the generalised gradient approximation (GGA)… (More)
In this note paper, we report our experiment method at ad-hoc task of Web Track 2013. The goal of this task is to return a rank of documents order by relevance from a collection of static web pages. Our group used meta search to help query expansion as the first step, and then retrieved with the expansion query to get the search results and rerank them.