Results 21 to 30 of about 1,419,860 (293)

On diffusion approximation with discontinuous coefficients [PDF]

open access: yes, 2002
Convergence of stochastic processes with jumps to diffusion processes is investigated in the case when the limit process has discontinuous coefficients.
Krylov, N. V., Liptser, R.
core   +4 more sources

Wind energy production by means of diffusion stochastic process. Parameters estimation [PDF]

open access: yesEPJ Web of Conferences
In this work, we attempt to model wind energy production via a stochastic diffusion process. We consider an Ito-type stochastic differential * equation (SDE) and determine the probabilistic characteristics of the stochastic process solution, particularly
Oubamou Zian, El Kettani Moummou
doaj   +1 more source

Theory and Applications of Mechanoplasma Effect in the Processes of Machining Intensification

open access: yesУспехи физики металлов, 2019
The results of studying the deformation and destruction of solids in the process of machining by cutting under the influence of various media are reviewed.
O. I. Soshko, V. O. Soshko
doaj   +1 more source

Reaction-diffusion processes with nonlinear diffusion [PDF]

open access: yesPhysical Review E, 2012
We study reaction-diffusion processes with concentration-dependent diffusivity. First, we determine the decay of the concentration in the single-species and two-species diffusion-controlled annihilation processes. We then consider two natural inhomogeneous realizations.
openaire   +3 more sources

Relationships Between Atomic Diffusion Mechanisms and Ensemble Transport Coefficients in Crystalline Polymorphs [PDF]

open access: yes, 2014
Ionic transport in conventional ionic solids is generally considered to proceed via independent diffusion events or "hops''. This assumption leads to well-known Arrhenius expressions for transport coefficients, and is equivalent to assuming diffusion is ...
Madden, Paul A., Morgan, Benjamin J.
core   +3 more sources

Structure of the interlayer between Au thin film and Si-substrate: Molecular Dynamics simulations

open access: yesMaterials Research Express, 2020
Interaction between 2, 3, 5 and 7 atomic layers of gold and a (111) silicon surface was investigated with the molecular dynamics simulation method. The simulation of the diffusion interaction between gold and silicon in the temperature range 425–925 K ...
V Plechystyy   +5 more
doaj   +1 more source

Nonlinear Step-Stress Accelerated Degradation Modeling and Remaining Useful Life Estimation Considering Multiple Sources of Variability

open access: yesIEEE Access, 2019
In the absence of sufficient degradation data of long-lifetime and highly reliable products, a step-stress accelerated degradation model based on nonlinear diffusion process is proposed to estimate the remaining useful life (RUL), with the advantage of ...
Zhenan Pang   +5 more
doaj   +1 more source

Affinity Learning Via Self-Supervised Diffusion for Spectral Clustering

open access: yesIEEE Access, 2021
Spectral clustering makes use of the spectrum of an input affinity matrix to segment data into disjoint clusters. The performance of spectral clustering depends heavily on the quality of the affinity matrix.
Jianfeng Ye   +4 more
doaj   +1 more source

DIFFUSION PROCESSES AND COHERENT STATES [PDF]

open access: yesModern Physics Letters B, 1994
It is shown that uncertanity relations, as well as coherent and squeezed states, are structural properties of stochastic processes with Fokker–Planck dynamics. The quantum mechanical coherent and squeezed states are explicitly constructed via Nelson stochastic quantization.
DE MARTINO, Salvatore   +3 more
openaire   +4 more sources

Processo de difusão e TQC Diffusion process and TQC

open access: yesGestão & Produção, 1994
No momento em que assistimos em todo o país a uma disseminação em grande escala de conceitos rotulados de modelo japonês de gestão industrial (conceitos difundidos em nível global e aceitos como uma das poucas alternativas viáveis que se apresentam para ...
Nelson Yokoyama
doaj   +1 more source

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