Results 101 to 110 of about 1,048,174 (296)

A bifurcation study to guide the design of a landing gear with a combined uplock/downlock mechanism [PDF]

, 2014
This paper discusses the insights that a bifurcation analysis can provide when designing mechanisms. A model, in the form of a set of coupled steady-state equations, can be derived to describe the mechanism.
Lowenberg, Mark H, James Knowles (1252122), Neild, Simon A, Simon A. Neild (5491001), Knowles, James A C, Mark H. Lowenberg (7121948), Bernd Krauskopf (100472), Krauskopf, Bernd   +7 more
core   +1 more source

A Hypothalamic Oxytocinergic–Sympathetic Axis Couples Anxiety Dysregulation With Impaired Tendon–Bone Repair

Advanced Science, EarlyView.
RCI is associated with functional suppression of oxytocinergic neurons in the PVN. Reduced PVNOXT neuronal activity contributes to altered sympathetic regulation involving the IML–sympathetic chain pathway, accompanied by changes in norepinephrine signaling at the BTI.
Liyang Wan, Tingmo Huang, Liyue Zeng, Ruixue Du, Hengshuo Zhang, Shen Liu, Tao Zhang, Jianzhong Hu, Hongbin Lu   +8 more
wiley   +1 more source

Some Applications of Bifurcation Formulae to the Period Maps of Delay Differential Equations [PDF]

, 2005
Our purpose is to present some applications of the bifurcation formulae derived in [13] for periodic delay differential equations. We prove that a sequence of Neimark-Sacker bifurcations occurs as the parameter increases.
Röst, Gergely
core   +1 more source

Hopf bifurcation in a gene regulatory network model : molecular movement causes oscillations [PDF]

, 2014
M.A.J.C. and M.S. gratefully acknowledge the support of the ERC Advanced Investigator Grant 227619, “M5CGS — From Mutations to Metastases: Multiscale Mathematical Modelling of Cancer Growth and Spread”. M.S.
Ptashnyk, Mariya, Marc Sturrock, Ptashnyk, Mariya; id_orcid, Chaplain, Mark A. J., Sturrock, Marc, Mark Chaplain, Chaplain, Mark, Mariya Ptashnyk A, Mark Chaplain A, Marc Sturrock B, Mariya Ptashnyk, Ptashnyk, M, Chaplain, M, Sturrock, M   +13 more
core   +1 more source

Synchronization of Analog Neuron Circuits With Digital Memristive Synapses: An Hybrid Approach

Advanced Electronic Materials, EarlyView.
An hybrid circuit mimicking neural units coupled using memristive synapses is introduced. The analog neurons provide flexibility and robustness, and the digital memristive coupling guarantees the full reconfigurability of the interconnection. The onset of a synchronized spiking behavior in two circuits mimicking the Izhikevich neuron is discussed from ...
Lamberto Carnazza, Francesco Maria Esposito, Carlo Famoso, Arturo Buscarino   +3 more
wiley   +1 more source

Nonlinear Dynamics and Invariants of Motion in ReRAM Cells

Advanced Electronic Materials, EarlyView.
A second‐order cell, hosting one capacitor and two back‐to‐back ReRAMs, admits Invariants of Motion: its states lie on one‐dimensional manifolds at all times. The cell shows quiescent monostability or bistability, depending on the manifold index. At equilibrium, the capacitor voltage vanishes.
Mauro Di Marco, Mauro Forti, Luca Pancioni, Giacomo Innocenti, Alberto Tesi, Alon Ascoli   +5 more
wiley   +1 more source

Non-Robust Dynamic Inferences from Macroeconometric Models: Bifurcation Stratification of Confidence Regions [PDF]

Grandmont (1985) found that the parameter space of the most classical dynamic models are stratified into an infinite number of subsets supporting an infinite number of different kinds of dynamics, from monotonic stability at one extreme to chaos at the ...
Barnett, William A., Duzhak, Evgeniya A.
core   +2 more sources

Continuous dependence of boundary values for semiinfinite interval ordinary differential equations

International Journal of Mathematics and Mathematical Sciences, 1986
Certain elliptic equations arising in catalysis theory can be transformed into ordinary differential equations on the interval (0,∞). The solutions to these problems usually depend on parameters ρ∈ℝn, say u(t,ρ).
David H. Eberly
doaj   +1 more source

A Unifying Approach to Self‐Organizing Systems Interacting via Conservation Laws

Advanced Intelligent Discovery, EarlyView.
The article develops a unified way to model and analyze self‐organizing systems whose interactions are constrained by conservation laws. It represents physical/biological/engineered networks as graphs and builds projection operators (from incidence/cycle structure) that enforce those constraints and decompose network variables into constrained versus ...
F. Barrows, G. Zhang, S. Anand, Z. Chen, J. Lin, A. Desai, S. Martiniani, F. Caravelli   +7 more
wiley   +1 more source

Bifurcation from intervals for Sturm-Liouville problems and its applications

Electronic Journal of Differential Equations, 2014
Summary: We study the unilateral global bifurcation for the nonlinear Sturm-Liouville problem \[ \displaylines{ -(pu')'+qu=\lambda au+af(x,u,u',\lambda)+g(x,u,u',\lambda) \text{ for }x\in(0,1),\cr b_0u(0)+c_0u'(0)=0,\quad b_1u(1)+c_1u'(1)=0, } \] where \(a\in C([0, 1], [0,+\infty))\) and \(a(x)\not\equiv 0\) on any subinterval of \([0, 1], f,g\in C([0 ...
Guowei Dai, Ruyun Ma
openaire   +2 more sources