Results 21 to 30 of about 1,989,896 (322)

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

Stochastic Processes Crossing from Ballistic to Fractional Diffusion with Memory: Exact Results [PDF]

open access: yes, 2009
We address the now classical problem of a diffusion process that crosses over from a ballistic behavior at short times to a fractional diffusion (sub- or super-diffusion) at longer times. Using the standard non-Markovian diffusion equation we demonstrate
Anatoly Zagorodny   +5 more
core   +3 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

Asymptotic Behavior on a Linear Self-Attracting Diffusion Driven by Fractional Brownian Motion

open access: yesFractal and Fractional, 2022
Let BH={BtH,t≥0} be a fractional Brownian motion with Hurst index 12≤H0 and σ,ν∈R are three parameters. The process is an analogue of the self-attracting diffusion (Cranston and Le Jan, Math. Ann.303 (1995), 87–93).
Litan Yan, Xue Wu, Xiaoyu Xia
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

ANOVA for diffusions and Itô processes [PDF]

open access: yesThe Annals of Statistics, 2006
It processes are the most common form of continuous semimartingales, and include diffusion processes. This paper is concerned with the nonparametric regression relationship between two such It processes. We are interested in the quadratic variation (integrated volatility) of the residual in this regression, over a unit of time (such as a day).
Mykland, Per Aslak, Zhang, Lan
openaire   +4 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

Reaction-diffusion systems in natural sciences and new technology transfer

open access: yesJournal of the Mechanical Behavior of Materials, 2012
Diffusion mechanisms in natural sciences and innovation management involve partial differential equations (PDEs). This is due to their spatio-temporal dimensions.
Keller André A.
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

Return-to-home model for short-range human travel

open access: yesMathematical Biosciences and Engineering, 2022
In this work, we develop a mathematical model to describe the local movement of individuals by taking into account their return to home after a period of travel.
Arnaud Ducrot , Pierre Magal
doaj   +1 more source

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