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Forests play a major role in global carbon (C) cycle, and the carbon density (CD) could reflect its ecological function of C sequestration. Study on the CD of different forest types on a community scale is crucial to characterize in depth the capacity of forest C sequestration. In this study, based on the forest inventory data of 168 field plots in the study area (E 111°30′–113°50′, N 37°30′–39°40′),...
In this paper, we study the firing activity of two coupled excitable neurons with sub threshold periodic signals\footnote{A sub threshold signal means that the signal is too weak to make the neuron firing.}. Particularly, we find that the two coupled excitable neurons can generate spikes to the sub threshold signals with no identical signal phases, indicating that the nonidentical signal phases play...
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