A collaborative system combined Fe 0 and microbes was established to remediate Cr(VI)-contaminated soil at low and relatively high concentrations of typical organic substrate (humic acid) and electron acceptors (nitrate and sulfate) with Fe 0 as a control. In the abiotic Fe 0 system, humic acid...

By preventing large-scale unemployment during China's economic transition, state-owned enterprises (SOEs) helped maintain social stability, which supported the development of non-state sectors through a positive externality. Yet this burden reduced the productive efficiency of SOEs. Using a...

Default correlation is the key point for the pricing of multi-name credit derivatives. In this paper, we apply copulas to characterize the dependence structure of defaults, determine the joint default distribution, and give the price for a specific kind of multi-name credit derivative —...

The role of rich-club connectivity is significant in the structural property and functional behavior of complex networks. In this study, we find whether or not a very small portion of rich nodes connected to each other can strongly affect the frequency of occurrence of basic building blocks...

We study the synchronization of coupled phase oscillators in random complex networks. The topology of the networks is assumed to be vary over time. Here we mainly study the onset of global phase synchronization when the topology switches rapidly over time. We find that the results are, to some...

We present a model of complex network generated from Hang Seng index (HSI) of Hong Kong stock market, which encodes stock market relevant both interconnections and interactions between fluctuation patterns of HSI in the network topologies. In the network, the nodes (edges) represent all kinds of...

This paper investigates the synchronization scheme of coupled neural networks with time delays. The coupling function, which can be linear or nonlinear, is subject to uncertainties in the network. By utilizing the stability theory for impulsive functional differential equations, several new...