a r t i c l e i n f o a b s t r a c t This paper proposes a new approach to estimate the phase synchrony among nonstationary multivariate signals using the linear relationships between their instantaneous frequency (IF) laws. For cases where nonstationary signals are multi-component, a decomposition method like multi-channel empirical mode decomposition (MEMD) is used to simultaneously decompos...

At the Earth's low-latitude magnetopause, Kelvin–Helmholtz instability (KHI), driven by velocity shear between magnetosheath and magnetosphere, has been frequently observed during northward interplanetary magnetic field (IMF) periods. However, signatures of KHI have much less southward IMF periods, how develops under explored. Here, we performed a series realistic 2D 3D fully kinetic simulation...

This paper describes a multi-objective evolutionary approach for solving cloud computing service provider selection problems with dynamic demands. In this investigated problem, not only the service purchase costs and transmission costs of service providers are different, but the demands of service requests also change over the given periods. The objective of this problem is to select a number o...

In multi-echelon inventory systems the performance of a given node is affected by events that occur at many other nodes and in many other time periods. For example, a supply disruption upstream will have an effect on downstream, customer-facing nodes several periods later as the disruption "cascades" through the system. There is very little research on stock-out prediction in single-echelon sys...