Results 11 to 20 of about 1,843,306 (292)
Generational Spreading Speed and the Dynamics of Population Range Expansion [PDF]
The American Naturalist, 2015 Some of the most fundamental quantities in population ecology describe the growth and spread of populations. Population dynamics are often characterized by the annual rate of increase, λ, or the generational rate of increase, R0. Analyses involving R0 have deepened our understanding of disease dynamics and life-history complexities beyond that afforded
Bateman, Andrew W. +3 more
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A Maximum Spreading Speed for Magnetopause Reconnection [PDF]
Geophysical Research Letters, 2018 AbstractPast observations and numerical modeling find magnetic reconnection to initiate at a localized region and then spread along a current sheet. The rate of spreading has been proposed to be controlled by a number of mechanisms based on the properties within the boundary.
B. M. Walsh +3 more
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Asymptotic speed of spreading in a delay lattice differential equation without quasimonotonicity
Electronic Journal of Differential Equations, 2014 This article concerns the asymptotic speed of spreading in a delay lattice differential equation without quasimonotonicity. We obtain the speed of spreading by constructing an auxiliary undelayed equation, whose speed of spreading is the same as ...
Fuzhen Wu
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Effect of Contact Angle Hysteresis on Evaporation Dynamics of a Sessile Drop on a Heated Surface [PDF]
Journal of Applied Fluid Mechanics, 2022 Contact angle hysteresis (CAH) is a significant factor affecting the drop motion on solid substrates. A model of CAH is introduced to explore the influence of CAH on the dynamics of a sessile drop on a uniformly heated surface, and a two-dimensional ...
X. M. Ye +3 more
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Research on Disease Spreading Behavior Oriented to Three-Layer Complex Networks
Applied Sciences, 2022 Disease spreading in multi-layer complex networks often spreads among multiple populations with the help of media. In order to reveal the cross-layer spreading characteristics of diseases and control the cross-layer spreading of diseases by analyzing the
Zhonglin Ye +5 more
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Voltage-induced spreading and superspreading of liquids [PDF]
, 2013 The ability to quickly spread a liquid across a surface and form a film is fundamental for a diverse range of technological processes, including printing, painting and spraying.
Sampara, Naresh +2 more
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Persistence versus extinction for two competing species under a climate change
Nonlinear Analysis, 2017 This paper considers effects of a climate-induced range shift on outcomes of two competitive species, which is modeled by a reaction–diffusion system with the increasing growth rates of species along a shifting habitat gradient. Analytical conditions are
Zewei Zhang, Wendi Wang, Jiangtao Yang
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Journal of Natural Fibers, 2021 This study discusses the effect of modified yarn path in ring spinning such as straight path, left diagonal path and right diagonal path on moisture management properties of the cotton fabric like wetting time, absorption time, spreading area, spreading ...
A. Jebastin Rajwin, C. Prakash
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Ultrasonics Sonochemistry, 2022 The cavitation characteristics during the spreading of a pure Sn liquid droplet subjected to ultrasonication were studied for the first time through high-speed photography to reveal the wetting mechanism. Ultrasonic vibration realized the spreading of Sn
Zhengwei Li +5 more
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An extension of the formula for spreading speeds
Mathematical Biosciences and Engineering, 2010 A well-known formula for the spreading speed of a discrete-time recursion model is extended to a class of problems for which its validity was previously unknown. These include migration models with moderately fat tails or fat tails. Examples of such models are given.
Hans F. Weinberger, Xiao-Qiang Zhao
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