Results 61 to 70 of about 1,419,860 (293)

Diffusion equations in inhomogeneous solid having arbitrary gradient concentration

open access: yesCondensed Matter Physics, 2017
A quantum kinetic equation is obtained for an inhomogeneous solid having arbitrary gradient concentration and chemical potential. We find, starting from nonequilibrium statistical operator, a new equation to describe atom migration in solid states.
Y. Bilotsky, M. Gasik, B. Lev
doaj   +1 more source

Research of the impact of the methods of extragent preparation on physical and chemical properties of exhausted beat slices

open access: yesНовые технологии, 2019
From the point of view of ensuring the stability of the mode of its conduct, the process of diffusion desugarization of beet slices, is largely determined by physical and chemical properties of beet slices, which are usually not controlled by production ...
S. O. Semenikhin   +3 more
doaj   +1 more source

Multifractality of jump diffusion processes [PDF]

open access: yesAnnales de l'Institut Henri Poincaré, Probabilités et Statistiques, 2018
33 pages, accepted by Annales de l'Institut Henri Poincar ...
openaire   +7 more sources

Universality of the triplet contact process with diffusion

open access: yes, 2013
The one-dimensional triplet contact process with diffusion (TCPD) model has been studied using fast multispin GPU Monte Carlo simulations. In particular, the particle density \rho and the density of pairs of neighboring particles \rho_p have been ...
Barkema, Gerard T., Schram, Raoul D.
core   +1 more source

Plasma lipidomic and metabolomic profiles in high‐grade glioma patients before and after 72‐h presurgery water‐only fasting

open access: yesMolecular Oncology, EarlyView.
Presurgery 72‐h fasting in GB patients leads to adaptations of plasma lipids and polar metabolites. Fasting reduces lysophosphatidylcholines and increases free fatty acids, shifts triglycerides toward long‐chain TGs and increases branched‐chain amino acids, alpha aminobutyric acid, and uric acid.
Iris Divé   +7 more
wiley   +1 more source

Heart rate from face videos under realistic conditions for advanced driver monitoring

open access: yesCurrent Directions in Biomedical Engineering, 2017
The role of physiological signals has a large impact on driver monitoring systems, since it tells something about the human state. This work addresses the recursive probabilistic inference problem in time-varying linear dynamic systems to incorporate ...
Pilz Christian S.   +3 more
doaj   +1 more source

On the solution of the steady‐state diffusion problem for ferromagnetic particles in a magnetic fluid

open access: yesMathematical Modelling and Analysis, 2008
A mathematical model for the diffusion process of ferromagnetic particles in a magnetic fluid is described. The unique solvability of the steady‐state particle concentration problem is investigated and an analytical expression for its solution is found ...
Viktor Polevikov, Lutz Tobiska
doaj   +1 more source

Hyperbolastic type-III diffusion process: Obtaining from the generalized Weibull diffusion process

open access: yesMathematical Biosciences and Engineering, 2020
The modeling of growth phenomena has become a matter of great interest in many different fields of application and research. New stochastic models have been developed, and others have been updated to this end.
Antonio Barrera   +2 more
doaj   +1 more source

Machine learning of pair-contact process with diffusion

open access: yesScientific Reports, 2022
The pair-contact process with diffusion (PCPD), a generalized model of the ordinary pair-contact process (PCP) without diffusion, exhibits a continuous absorbing phase transition.
Jianmin Shen   +5 more
doaj   +1 more source

Studying Paths of Participation in Viral Diffusion Process

open access: yes, 2012
Authors propose a conceptual model of participation in viral diffusion process composed of four stages: awareness, infection, engagement and action. To verify the model it has been applied and studied in the virtual social chat environment settings.
A. Bruyn De   +28 more
core   +1 more source

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