Results 11 to 20 of about 1,843 (161)
Modelling and Simulation in Engineering, 2023 Acetyl chloride hydrolysis is a highly sensitive exothermic reaction that has presented several industrial safety issues. In the present study, a multiparameter mathematical model, previously developed and applied to simulate the oscillatory thermal ...
Juan Carlos Ojeda Toro +2 more
doaj +2 more sources
Diversity of cells and signals in the cardiovascular system
The Journal of Physiology, Volume 601, Issue 13, Page 2547-2592, 1 July 2023., 2023 Abstract figure legend This white paper discusses the cell diversity, co‐ordination and interaction patterns that are critical for robust cardiovascular function. We identify the major cell types and signals involved in cardiovascular function and emphasize the complexity at the subcellular, cellular and system levels that motivate both challenges and ...
Eleonora Grandi +17 more
wiley +1 more source
Complexity, Volume 2023, Issue 1, 2023., 2023 Population ecosystems can display the tipping points at which extinctions of species happens. To predict the appearance of tipping points and to understand their evolution mechanism are of uttermost importance for ecological balance. Using techniques from bifurcation theory, we can predict the emergence of tipping points based on a spatiotemporal ...
Min Xiao +5 more
wiley +1 more source
Palaeontology, Volume 65, Issue 3, May/June 2022., 2022 Abstract Bite traces on fossil bones are key to deciphering feeding ecology and trophic interactions of vertebrate past ecosystems. However, similarities between traces produced by different carnivorous taxa with similar dentitions, and misidentifications due to equifinality, hinder confident identifications of the bite makers.
Eudald Mujal +5 more
wiley +1 more source
Complexity, Volume 2022, Issue 1, 2022., 2022 In this paper, we put forward a time‐delay ecological competition system with food restriction and diffusion terms under Neumann boundary conditions. For the case without delay, the conditions for local asymptotic stability and Turing instability are constructed.
Feilong Wang +6 more
wiley +1 more source
Takens-Bogdanov bifurcation of travelling wave solutions in pipe flow [PDF]
, 2010 The appearance of travelling-wave-type solutions in pipe Poiseuille flow that are disconnected from the basic parabolic profile is numerically studied in detail.
B. ECKHARDT +6 more
core +5 more sources
Mathematical Problems in Engineering, Volume 2022, Issue 1, 2022., 2022 In the present paper, the SIR model with nonlinear recovery and Monod type equation as incidence rates is proposed and analyzed. The expression for basic reproduction number is obtained which plays a main role in the stability of disease‐free and endemic equilibria.
Ihsan Ullah Khan +4 more
wiley +1 more source
Bogdanov-Takens resonance in time-delayed systems [PDF]
, 2017 We analyze the oscillatory dynamics of a time-delayed dynamical system subjected to a periodic external forcing. We show that, for certain values of the delay, the response can be greatly enhanced by a very small forcing amplitude.
Coccolo, Mattia +3 more
core +2 more sources
Hopf bifurcations for an oversteer vehicle – the influence of wheel load changes
Proceedings in Applied Mathematics and Mechanics, Volume 21, Issue 1, December 2021., 2021 Abstract In [1] the occurence of a Hopf bifurcation at steady‐state cornering for a two‐wheel oversteering vehicle with a brush model for the tyre forces was found and following the bifurcating branch of periodic solutions we observed a Canard phenomenon and relaxation oscillations, which are typical for singularly perturbed systems. In that article we
Alois Steindl +2 more
wiley +1 more source
Bifurcation of an SIRS Model with a Modified Nonlinear Incidence Rate
Mathematics, 2023 An SIRS epidemic model with a modified nonlinear incidence rate is studied, which describes that the infectivity is strong at first as the emergence of a new disease or the reemergence of an old disease, but then the psychological effect will weaken the ...
Yingying Zhang, Chentong Li
doaj +1 more source