Results 61 to 70 of about 5,272,693 (342)

Theoretical analysis for critical fluctuations of relaxation trajectory near a saddle-node bifurcation

open access: yes, 2010
A Langevin equation whose deterministic part undergoes a saddle-node bifurcation is investigated theoretically. It is found that statistical properties of relaxation trajectories in this system exhibit divergent behaviors near a saddle-node bifurcation ...
C. W. Gardiner   +9 more
core   +1 more source

One-sided bifurcation points

open access: yesJournal of Differential Equations, 1970
is to show that the degree at y of the map f for a fixed value of p is nonzero, and then use the invariance under homotopy of the degree to show that the degree has the same value as p is varied. To use this procedure it is necessary to prove that the degree is defined for the values of p considered. We consider (Section 2) the case in which the degree
openaire   +1 more source

Unleashing the Power of Machine Learning in Nanomedicine Formulation Development

open access: yesAdvanced Functional Materials, EarlyView.
A random forest machine learning model is able to make predictions on nanoparticle attributes of different nanomedicines (i.e. lipid nanoparticles, liposomes, or PLGA nanoparticles) based on microfluidic formulation parameters. Machine learning models are based on a database of nanoparticle formulations, and models are able to generate unique solutions
Thomas L. Moore   +7 more
wiley   +1 more source

Propagation Failure in Excitable Media

open access: yes, 1997
We study a mechanism of pulse propagation failure in excitable media where stable traveling pulse solutions appear via a subcritical pitchfork bifurcation. The bifurcation plays a key role in that mechanism.
A. F. M. Maree   +26 more
core   +1 more source

Atomic‐Level Dual‐Cation Engineering Enables High‐Performance Na4VMn(PO4)3 Cathodes for Sodium‐Ion Batteries

open access: yesAdvanced Functional Materials, EarlyView.
Dual‐cation site engineering unlocks stable and fast sodium storage in Na4VMn(PO4)3 cathodes. Li+ at Na2 suppresses Jahn‐Teller distortion, while K+ at Na1 expands ion channels, enabling synchronized V/Mn redox and quasi‐single‐phase kinetics. This atomic‐level strategy achieves ultralong cycling stability, high‐rate capability, and full cell viability
Jiaze Sun   +8 more
wiley   +1 more source

Quantum Dynamics of Mesoscopic Driven Duffing Oscillators

open access: yes, 2010
We investigate the nonlinear dynamics of a mesoscopic driven Duffing oscillator in a quantum regime. In terms of Wigner function, we identify the nature of state near the bifurcation point, and analyze the transient process which reveals two distinct ...
Guo, Lingzhen   +2 more
core   +1 more source

Switching barrier scaling near bifurcation points for non-Gaussian noise [PDF]

open access: yes, 2010
We study noise-induced switching of a system close to bifurcation parameter values where the number of stable states changes. For non-Gaussian noise, the switching exponent, which gives the logarithm of the switching rate, displays a non-power-law ...
A. N. Korotkov   +8 more
core   +3 more sources

High Entropy Wide‐Bandgap Borates with Broadband Luminescence and Large Nonlinear Optical properties

open access: yesAdvanced Functional Materials, EarlyView.
High‐entropy rare‐earth borates exhibit excellent nonlinear optical and broadband luminescence properties arising from multi‐component doping, chemical disorder, increased configurational entropy, and increased lattice and electronic anharmonicity. This formulation enabled us to obtain a large, environmentally stable single crystal with 3X higher laser‐
Saugata Sarker   +14 more
wiley   +1 more source

Simultaneous Border-Collision and Period-Doubling Bifurcations

open access: yes, 2009
We unfold the codimension-two simultaneous occurrence of a border-collision bifurcation and a period-doubling bifurcation for a general piecewise-smooth, continuous map.
Angulo F.   +7 more
core   +1 more source

Empirical fixed point bifurcation analysis

open access: yes, 2018
Submitted to ICML2018 on 9 February ...
Bohner, Gergo, Sahani, Maneesh
openaire   +2 more sources

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