Development of Performance Test Facility of Positive Displacement CO2 Refrigerant Compressor [PDF]
, 2012 Due to the transcritical nature, some of the test methods used in the conventional subcritical refrigeration cycle, such as the liquid refrigerant flow metering method and the water-cooled condenser metering method, are no longer appropriate for ...
Wang, Rujin +4 more
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Global Hopf bifurcation in the ZIP regulatory system [PDF]
, 2015 Regulation of zinc uptake in roots of Arabidopsis thaliana has recently been modeled by a system of ordinary differential equations based on the uptake of zinc, expression of a transporter protein and the interaction between an activator and inhibitor ...
Ptashnyk, Mariya +4 more
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Dynamical behaviors of a two-competitive metapopulation system with impulsive control
Advances in Difference Equations, 2017 In this paper, we study the dynamical behaviors of a two-competitive metapopulation system with impulsive control and focus on the stable coexistence of the superior and inferior species.
Shasha Tian, Yepeng Xing, Tao Ma
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Stability and Bifurcations in a Discrete-Time Eco-Evolutionary Logistic Model
MathematicsIn this paper I study a two-dimensional discrete-time evolutionary logistic-type model describing the coupled dynamics of population density and a continuously evolving trait.
Rafael Luís
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The transcritical Bogdanov Takens bifurcation with boundary due to the risk perception on a recruitment epidemiological model [PDF]
We analyze an epidemiological model with treatment and recruitment considering the risk perception. In this model, we consider an exponential function as a recruitment rate.
Velasco-Hernández, Jorge X. +2 more
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Mathematical remarks on transcritical bifurcation in Hamiltonian systems
, 2007 This article is meant as a mathematical appendix or comment on [BT]. We first consider the notion of transcritical bifurcations of fixed points of general area-preserving maps, and then adress some questions related to [BT] on bifurcation in Poincaré maps of 2-dimensional Hamiltonian systems. [BT] M. Brack and K.
openaire +2 more sources
Exploring Transcritical and Pitchfork Bifurcations in Parameter-Varying Systems
Journal of Computational MathematicaThis work explores with an emphasis on limited trajectories close to the origin, as well as their pullback attraction and asymptotic instability, this paper examines non-autonomous trans critical bifurcations as well as pitchfork bifurcation. It examines the circumstances in which bifurcation takes place, using the dynamics outlined in system.
Geethalakshmi S +3 more
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Complex dynamics of a nonlinear discrete predator-prey system with Allee effect
Open MathematicsThe transition between strong and weak Allee effects in prey provides a simple regime shift in ecology. In this article, we study a discrete predator-prey system with Holling type II functional response and Allee effect. First, the number of fixed points
Wang Jing, Lei Ceyu
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, 2004 Within a discrete drift model, we study the evolution of the self-sustained current oscillation (SSCO) solutions (limit cycles) in sequential tunnelling of superlattices under dc bias. We propose two possible modes: one is coexistence of both fixed point
Yin, S. +6 more
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Exploring chaos and bifurcation in a discrete prey–predator based on coupled logistic map
Scientific ReportsThis research paper investigates discrete predator-prey dynamics with two logistic maps. The study extensively examines various aspects of the system’s behavior.
Mohammed O. Al-Kaff +3 more
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