In this paper, for solving the moral hazard problem of super nodes in VOIP network and achieving better communication quality, we establish a reward mechanism based on classical efficiency-wage models. In the reward mechanism, the function of reward is to encourage super nodes to contribute their bandwidth and cover their effort costs, whereas the function of fine is to prevent opportunistic su...

The Efficient Clustered Super-Peer P2P network is a novel P2P architecture, which overcomes the efficiency and scalability problems of existing P2P systems. A flooding algorithm, Efficient Flooding Algorithm (EFA) is also introduced to work on this type of network system. However, the Super-Peer network architecture and the behavior of the flooding algorithm are not intuitive. SuperViz project ...

Purpose Seaports are a signifier for the world economy and international trade. Notwithstanding considerable role of Chinese ports in global trade, only few studies have explored efficiency container terminals. Furthermore, on port has typically centered port-level analysis, not terminal level. Therefore, this study aims to examine operation Design/methodology/approach This uses super-efficienc...

Data envelopment analysis (DEA) is a nonstochastic and nonparametric linear programming technique where a set of units are evaluated according to their input consumption and output production (Charnes et al. (1978)). Given that DEA efficiency analysis can be influenced by the presence of outliers, Banker and Chang (2006) proposed a method to detect atypical units through the super-efficiency mo...

We report the observation of laser gain in the vacuum ultraviolet pumped by super Coster-Kronig decay. Using a 5-J, 300-psec pump pulse of 1064-nm radiation, we have observed gain on transitions in Zn III at 127.0, 130.6, and 131.9 nm with total gains of exp(2.4), exp(5.1), and exp(3.2), respectively. The large branching ratios of the rapid super Coster-Kronig decay into a small number of final...