This paper proposes a new node centrality measurement index (c-index) and its derivative indexes (iterative c-index and cg-index) to measure the collaboration competence of a node in a weighted network. We prove that c-index observe the power law distribution in the weighted scale-free network....

This paper proposes a new node centrality measurement in a weighted network, the communication centrality, which is inspired by Hirsch’s h-index. We investigated the properties of the communication centrality, and proved that the distribution of the communication centrality has the power-law...

We investigate the causes of the high first day returns of Chinese firms making an initial public offering (IPO) of A-shares from 1991 to 2003 on Shanghai and Shenzhen stock exchanges. Our results show an average underpricing of 175.21 percent. We argue that the IPO underpricing is an...

Using first-principles calculation, we have studied the properties of a series of M<Subscript> x </Subscript>Co<Subscript>1−x </Subscript>/Co(0001) (M=Pd, Pt) bimetallic surface alloys with atom M ratios from 0.25 to 1.0, then the effect of alloyed M metal on the properties of S adsorbed on these surfaces are discussed. Our calculations...</subscript></subscript>

Needle-shaped PbTiO3 (PT) template particles were successfully synthesized using two different types of approaches, molten salt synthesis (MSS) and thermal synthesis method. In eutectic NaCl–KCl molten salt system, homogeneous and nonagglomerated needle-shaped PT particles were produced from...