نتایج جستجو برای: varying density

تعداد نتایج: 552513  

Journal: :Journal of theoretical biology 2008
Matthew J Smith Jonathan A Sherratt Xavier Lambin

Density-dependent dispersal occurs throughout the animal kingdom, and has been shown to occur in some taxa whose populations exhibit multi-year population cycles. However, the importance of density-dependent dispersal for the spatiotemporal dynamics of cyclic populations is unknown. We investigated the potential effects of density-dependent dispersal on the properties of periodic travelling wav...

2008
Junichi Hirukawa Hiroko Solvang Kato Kenichiro Tamaki Masanobu Taniguchi JUNICHI HIRUKAWA

The problem of fitting a parametric model of time series with time varying parameters attracts our attention. We evaluate a goodness of time varying spectral models from an information theoretic point of view. We propose model selection criteria for locally stationary processes based on nonlinear functionals of a time varying spectral density without assuming that the true time varying spectral...

Journal: :Journal of Mechanical and Energy Engineering 2020

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