Results 41 to 50 of about 63,354 (312)

The rapid points of a complex oscillation [PDF]

open access: yesLogical Methods in Computer Science, 2012
By considering a counting-type argument on Brownian sample paths, we prove a result similar to that of Orey and Taylor on the exact Hausdorff dimension of the rapid points of Brownian motion.
Paul Potgieter
doaj   +1 more source

Deterministic Brownian motion [PDF]

open access: yesPhysical Review A, 1992
The goal of this thesis is to contribute to the ambitious program of the foundation of developing statistical physics using chaos. We build a deterministic model of Brownian motion and provide a microscpoic derivation of the Fokker-Planck equation.
, Trefán, , Grigolini, , West
openaire   +2 more sources

Linear filtering with fractional Brownian motion in the signal and observation processes

open access: yes, 1999
Integral equations for the mean-square estimate are obtained for the linear filtering problem, in which the noise generating the signal is a fractional Brownian motion with Hurst index h∈(3/4,1) and the noise in the observation process includes a ...
Kloeden, Peter E.   +2 more
core   +1 more source

Generalized fractional Brownian motion

open access: yesModern Stochastics: Theory and Applications, 2017
We introduce a new Gaussian process, a generalization of both fractional and subfractional Brownian motions, which could serve as a good model for a larger class of natural phenomena.
Mounir Zili
doaj   +1 more source

CFD simulations on natural convection heat transfer of alumina-water nanofluid with Brownian motion effect in a 3-D enclosure [PDF]

open access: yesJournal of Particle Science and Technology, 2016
The CFD simulation has been undertaken concerning natural convection heat transfer of a nanofluid in vertical square enclosure, whose dimension, width height length (mm), is 40 40 90, respectively.
Saeed Dinarvand   +3 more
doaj   +1 more source

Multiplex Modular Nanorobotic Systems with Catalytic Activity under Magnetic Navigation

open access: yesAdvanced Functional Materials, EarlyView.
We present modular nanorobots composed of a magnetic propulsion module and different extension modules carrying functional activities, assembled via DNA base pairing. The system integrates propulsion, optical tracking, enzymatic catalysis, and cell docking in a programmable manner.
Voichita Mihali   +7 more
wiley   +1 more source

Mouvement brownien et la relaxation des spins dans les systèmes moléculaires organiques

open access: yesCHIMIA, 1973
A survey is given of the possibility of applying the spin-proton relaxation method to the study of Brownian motion in organic substances. Brownian motion is represented by the Fokker-Planck equation and it is connected to the spin relaxation by means of
Rudolf Lenk
doaj   +1 more source

Dynamics of Active Brownian Particles in Plasma

open access: yesMolecules, 2021
Experimental data on the active Brownian motion of single particles in the RF (radio-frequency) discharge plasma under the influence of thermophoretic force, induced by laser radiation, depending on the material and type of surface of the particle, are ...
Kyaw Arkar   +4 more
doaj   +1 more source

Maximal Brownian motions

open access: yesAnnales de l'Institut Henri Poincaré, Probabilités et Statistiques, 2009
Let $Z=(X,Y)$ be a planar Brownian motion, $\ZZ$ the filtration it generates, and $B$ a linear Brownian motion in the filtration $\ZZ$. One says that $B$ (or its filtration) is maximal if no other linear $\ZZ$-Brownian motion has a filtration strictly bigger than that of $B$.
Brossard, Jean   +2 more
openaire   +4 more sources

Dual‐Mode Magnetic Elastomer for On‐Demand Motion and Degradation

open access: yesAdvanced Functional Materials, EarlyView.
A dual‐mode magnetic elastomer is introduced, enabling DC field‐driven programmable actuation and AC field‐driven magnetothermal degradation. GHz‐range magnetic fields generate ultrafast heating of magnetic nanoparticles that activates cleavage of the silicone elastomer matrix.
Jieun Han   +13 more
wiley   +1 more source

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