Results 81 to 90 of about 46,577 (307)
Parametric optimization of fold bifurcation points [PDF]
, 2023 International audienceThe aim of this work is to optimize the parameters of a mechanical system in order to force fold bifurcation points to appear at targeted frequencies.
Mélot, Adrien +2 more
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A global index for bifurcation of fixed points.
Journal für die reine und angewandte Mathematik (Crelles Journal), 1988 Let \(X\) be a Banach space, \(\mathcal O\subset\mathbb R^ k\times X\) be open and \(f: \mathcal O\to X\) be completely continuous such that \(f(\lambda,0)=0\) for all \(\lambda\). If the set \[ \mathcal B:=\mathbb R^ k\cap \text{clos}\{(\lambda,x)\in\mathcal O: f(\lambda,x)=x\neq 0 \} \] of bifurcation points is compact an index \(\mathrm{BI}(f)\) is ...
openaire +2 more sources
On the relationship between equilibrium bifurcations and ideal MHD instabilities for line-tied coronal loops [PDF]
, 2010 For axisymmetric models for coronal loops the relationship between the bifurcation points of magnetohydrodynamic (MHD) equilibrium sequences and the points of linear ideal MHD instability is investigated, imposing line-tied boundary conditions.
Romeou, Z., Neukirch, T.
core +1 more source
Miniaturized Magnetic Tip Design for Endoluminal Vine Robot Navigation
Advanced Robotics Research, EarlyView.A magnetic tip mount is designed for a miniaturized 7 mm soft‐growing vine robot to enable wireless magnetic steering and onboard imaging, while preserving a 3 mm working channel. The internal–external ring magnets design balances magnetic attachment with low eversion pressure. Experiments demonstrate ±90° steering, 34 mm bending radius, and successful
Andrea Yanez Trujillo +4 more
wiley +1 more source
Symmetry-breaking in a rate model for a biped locomotion central pattern generator [PDF]
, 2014 The timing patterns of animal gaits are produced by a network of spinal neurons called a Central Pattern Generator (CPG). Pinto and Golubitsky studied a four-node CPG for biped dynamics in which each leg is associated with one flexor node and one ...
Ian Stewart, Stewart, Ian
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Optimization of Magnetic Milli‐Spinner for Robotic Endovascular Intervention
Advanced Robotics Research, EarlyView.This work presents the design optimization of a multifunctional magnetic milli‐spinner for high‐speed propulsion and efficient clot debulking. The optimized design achieves an ultrafast swimming velocity of 55 cm/s (≈175 body lengths/s) in saline water, enabling stable upstream swimming against strong physiological flows and establishing magnetic milli‐
Lu Lu +3 more
wiley +1 more source
Advanced Science, EarlyView.SETDB1 is progressively downregulated in ALD, correlating with disease severity. SETDB1 deficiency impairs LAP by disrupting Rubicon membrane localization, leading to defective lipid droplet clearance. Concurrently, loss of SETDB1 reduces nuclear LC3B, causing R‐loop accumulation and cGAS‐STING‐driven inflammation. Lipidated LC3B mediates LAP‐dependent
Yi Zhang +17 more
wiley +1 more source
Mathematical and Computational Applications, 2018 The aim of this paper is to investigate the bifurcation and chaotic behaviour in the two-parameter family of transcendental functions f λ , n ( x ) = λ x ( e x + 1 ) n , λ > 0 , x ∈ R , n ∈ N \ { 1 } which ...
Mohammad Sajid
doaj +1 more source
Bifurcation of Fredholm Maps II; The Dimension of the Set of Bifurcation Points
, 2010 We obtain an estimate for the covering dimension of the set of bifurcation points for solutions of nonlinear elliptic boundary value problems from the principal symbol of the linearization of the problem along the trivial branch of solutions.
openaire +4 more sources
Homoclinic snaking in a neutral delay model of a transmission line oscillator [PDF]
, 2006 In a transmission line oscillator (TLO) a linear wave travels along a piece of cable, the transmission line, and interacts with terminating electrical components.
Wilson, RE, Barton, DAW, Krauskopf, B
core