Results 101 to 110 of about 35,466 (285)

Terrain descriptors for landscape synthesis, analysis and simulation

open access: yesComputer Graphics Forum, EarlyView.
Abstract Synthetic landscape generation is an active research area within Computer Graphics. Algorithms for terrain synthesis and ecosystem simulations often rely on simple descriptors such as slope, light accessibility, and drainage area. Typically, the results are assessed from a perceptual standpoint, focusing primarily on visual plausibility. Other
O. Argudo   +3 more
wiley   +1 more source

Phase-Dependent Spontaneous Spin Polarization and Bifurcation Delay in Coupled Two-Component Bose-Einstein Condensates [PDF]

open access: yesPhys. Rev. A 69, 033611 (2004), 2003
The spontaneous spin polarization and bifurcation delay in two-component Bose-Einstein condensates coupled with laser or/and radio-frequency pulses are investigated. We find that the bifurcation and the spontaneous spin polarization are determined by both physical parameters and relative phase between two condensates.
arxiv   +1 more source

On the deduction and quantification of irruptive dynamics in mountain pine beetle population and proxy data

open access: yesJournal of Applied Entomology, Volume 149, Issue 3, Page 309-323, April 2025.
Abstract In attempting to develop a coherent description of the irruptive dynamics of mountain pine beetle (MPB) in North America, we examined a range of cases where authors described the dependency of intrinsic population growth rates on population attack levels.
B. J. Cooke   +2 more
wiley   +1 more source

Bifurcation diagram for saddle/source bimodal linear dynamical systems [PDF]

open access: yes, 2016
We continue the study of the structural stability and the bifurcations of planar bimodal linear dynamical systems (BLDS) (that is, systems consisting of two linear dynamics acting on each side of a straight line, assuming continuity along the separating ...
Ferrer Llop, Josep   +2 more
core   +1 more source

Scaling in activated escape of underdamped systems

open access: yes, 2005
Noise-induced escape from a metastable state of a dynamical system is studied close to a saddle-node bifurcation point, but in the region where the system remains underdamped.
A. P. Dmitriev   +10 more
core   +1 more source

Numerical and analytical study of bifurcations in a model of electrochemical reactions in fuel cells [PDF]

open access: yes, 2013
The bifurcations in a three-variable ODE model describing the oxygen reduction reaction on platinum surface is studied. The investigation is motivated by the fact that this reaction plays an important role in fuel cells.
Csörgő, Gábor, Simon L., Péter
core   +1 more source

Hopf-zero bifurcation of Oregonator oscillator with delay

open access: yesAdvances in Difference Equations, 2018
In this paper, we study the Hopf-zero bifurcation of Oregonator oscillator with delay. The interaction coefficient and time delay are taken as two bifurcation parameters. Firstly, we get the normal form by performing a center manifold reduction and using
Yuting Cai, Liqin Liu, Chunrui Zhang
doaj   +1 more source

Dynamic analysis of a Leslie-Gower predator-prey model with the fear effect and nonlinear harvesting

open access: yesMathematical Biosciences and Engineering, 2023
In this paper, we investigate the stability and bifurcation of a Leslie-Gower predator-prey model with a fear effect and nonlinear harvesting. We discuss the existence and stability of equilibria, and show that the unique equilibrium is a cusp of ...
Hongqiuxue Wu, Zhong Li, Mengxin He
doaj   +1 more source

Bistable Chimera Attractors on a Triangular Network of Oscillator Populations

open access: yes, 2010
We study a triangular network of three populations of coupled phase oscillators with identical frequencies. The populations interact nonlocally, in the sense that all oscillators are coupled to one another, but more weakly to those in neighboring ...
Erik A. Martens   +3 more
core   +1 more source

Complex Periodic Motions and Bifurcations of a Forced Duffing Oscillator with Its Field-Programmable Gate Arrays Implementation

open access: yesApplied Sciences
The dynamical behavior of a Duffing oscillator under periodic excitation is investigated using semi-analytical methods. Bifurcation trees with varying periodic excitation are constructed.
Yan Liu   +3 more
doaj   +1 more source

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