Results 71 to 80 of about 133,224 (286)

Prenucleation Species Dictate Foreign Ion Incorporation in the Biomineral Precursor Amorphous Calcium Carbonate

open access: yesAdvanced Functional Materials, EarlyView.
ACC forms via aggregating prenucleation clusters that gatekeep its chemical composition. Ion identity steers the path: Ba and Sr substitute Ca in clusters, thereby inhibiting nucleation, with a dose‐dependent switch of Sr to induction. Mg partitions into Mg‐rich and Mg‐poor clusters; the latter form ACC, expelling Mg.
Qianyu Zhao   +9 more
wiley   +1 more source

Stochastic solution framework for the resonance nonlinear Schrödinger model via Brownian motion process [PDF]

open access: yesAIP Advances
Despite substantial research into nonlinear Schrödinger equation equations, present techniques frequently tackle resonant nonlinear dynamics and stochastic perturbations separately, limiting comprehension of their combined impact on wave propagation.
H. S. Alayachi
doaj   +1 more source

Stochastic resonance crossovers in complex networks. [PDF]

open access: yesPLoS ONE, 2012
Here we numerically study the emergence of stochastic resonance as a mild phenomenon and how this transforms into an amazing enhancement of the signal-to-noise ratio at several levels of a disturbing ambient noise.
Giovanni Pinamonti   +2 more
doaj   +1 more source

An Analytical Study of Coupled Two-State Stochastic Resonators

open access: yes, 1998
The two-state model of stochastic resonance is extended to a chain of coupled two-state elements governed by the dynamics of Glauber's stochastic Ising model.
A. Bulsara   +36 more
core   +1 more source

Collective stochastic resonance in shear-induced melting of sliding bilayers [PDF]

open access: yes, 2003
The far-from-equilibrium dynamics of two crystalline two-dimensional monolayers driven past each other is studied using Brownian dynamics simulations. While at very high and low driving rates the layers slide past one another retaining their crystalline ...
Ananthakrishna, G.   +2 more
core   +2 more sources

Clean Up Behind You ‐ Novel Patterning Approach for Solid Immersion Lenses

open access: yesAdvanced Functional Materials, EarlyView.
A focused ion beam (FIB) milling strategy enables rapid fabrication of solid immersion lenses (SILs) with smooth, debris‐free surfaces eliminating the need for post‐processing. The optimized pattern improves efficiency and surface quality. SILs containing NV centers are also investigated, confirming the technique's suitability for quantum and photonic ...
Aleksei Tsarapkin   +10 more
wiley   +1 more source

Stochastic periodic orbits in fast-slow systems with self-induced stochastic resonance

open access: yesPhysical Review Research, 2021
Noise is ubiquitous in various systems. In systems with multiple timescales, noise can induce various coherent behaviors. Self-induced stochastic resonance (SISR) is a typical noise-induced phenomenon identified in such systems, wherein noise acting on ...
Jinjie Zhu, Hiroya Nakao
doaj   +1 more source

Quantum Forbidden-Interval Theorems for Stochastic Resonance [PDF]

open access: yes, 2008
We extend the classical forbidden-interval theorems for a stochastic-resonance noise benefit in a nonlinear system to a quantum-optical communication model and a continuous-variable quantum key distribution model.
Bart Kosko   +13 more
core   +3 more sources

Establishing a Model Precursor System: Over a Decade of Research on Carbon Dots from the Citric Acid‐Urea System

open access: yesAdvanced Functional Materials, EarlyView.
The citric acid/urea (CA‐Urea) precursor system offers a versatile, scalable route to carbon dots with tunable luminescence and multifunctionality. Mechanistic insights into precursor chemistry and reaction parameters have enabled doping, surface modification, and hybridization strategies, yielding CDs for luminescent devices, sensing, catalysis ...
Yupeng Liu   +10 more
wiley   +1 more source

The exit problem for diffusions with time-periodic drift and stochastic resonance

open access: yes, 2005
Physical notions of stochastic resonance for potential diffusions in periodically changing double-well potentials such as the spectral power amplification have proved to be defective.
Herrmann, Samuel, Imkeller, Peter
core   +3 more sources

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