Results 31 to 40 of about 1,453,083 (343)

Comparing algebraic and numerical solutions of classical diffusion process equations in computational financial mathematics

Discrete Dynamics in Nature and Society, 2001
We revise the interrelations between the classical Black Scholes equation, the diffusion equation and Burgers equation. Some of the algebraic properties the diffusion equation shows are elaborated and qualitatively presented.
Andreas Ruffing, Patrick Windpassinger, Stefan Panig   +2 more
doaj   +1 more source

An Image Encryption Algorithm Based on Josephus Traversing and Mixed Chaotic Map

IEEE Access, 2018
This paper proposes a new chaotic image encryption scheme, which employs Josephus traversing and mixed chaotic map. The scheme consists of three processes: key stream generation process; three-round scrambling process; and one-round diffusion process ...
Xingyuan Wang, Xiaoqiang Zhu, Yingqian Zhang   +2 more
doaj   +1 more source

A Comparative Analysis of the Tribological Behavior of Hard Layers Obtained by Three Different Hardened-Surface Processes on the Surface of AISI 4140 Steel

Crystals, 2022
This work compares the tribological behavior of surface layers obtained by three different hardening processes. The layers were formed on the surface of AISI 4140 steel by applying three different thermochemical treatments.
Pablo Alfredo Ruiz-Trabolsi, Alexis Chino-Ulloa, José Guadalupe Miranda-Hernández, Raúl Tadeo-Rosas, Rafael Carrera-Espinoza, Julio César Velázquez, Enrique Hernández-Sánchez   +6 more
doaj   +1 more source

Two Multi-Sigmoidal Diffusion Models for the Study of the Evolution of the COVID-19 Pandemic

Mathematics, 2021
A proposal is made to employ stochastic models, based on diffusion processes, to represent the evolution of the SARS-CoV-2 virus pandemic. Specifically, two diffusion processes are proposed whose mean functions obey multi-sigmoidal Gompertz and Weibull ...
Antonio Barrera, Patricia Román-Román, Juan José Serrano-Pérez, Francisco Torres-Ruiz   +3 more
doaj   +1 more source

Fluctuation Relations for Diffusion Processes

, 2007
The paper presents a unified approach to different fluctuation relations for classical nonequilibrium dynamics described by diffusion processes. Such relations compare the statistics of fluctuations of the entropy production or work in the original ...
A. Giuliani, B.C. Hohenberg, B.I. Halperin, C. Jarzynski, C. Jarzynski, C. Jarzynski, C. Jarzynski, C. Maes, C. Maes, C. Maes, D. Collin, D. Ruelle, D. Ruelle, D. Stroock, D.A. Hendrix, D.J. Evans, D.J. Evans, D.J. Evans, D.J. Searles, D.J. Searles, E. Witten, E.G.D. Cohen, F. Bonetto, F. Bonetto, F. Bonetto, F. Ritort, G. Falkovich, G. Gallavotti, G. Gallavotti, G. Gallavotti, G. Gallavotti, G. Gallavotti, G. Gallavotti, G. Parisi, G.E. Crooks, G.E. Crooks, H. Kunita, H. Risken, I.M. Lifshitz, J. Bec, J. Kurchan, J. Lebowitz, J. Tailleur, J.-P. Eckmann, J.-P. Eckmann, J.L. Lebowitz, K. Hayashi, K. Turitsyn, Krzysztof Gawȩdzki, L.-S. Young, L.F. Cugliandolo, M. Wilkinson, P. Gaspard, R. Chetrite, R. Zon van, R. Zwanzig, R.H. Kraichnan, Raphaël Chetrite, S. Ciliberto, S. Joubaud, S.R. Williams, T. Hatano, T. Speck, Y. Oono   +63 more
core   +1 more source

Parametric Estimation of Diffusion Processes: A Review and Comparative Study

Mathematics, 2021
This paper provides an in-depth review about parametric estimation methods for stationary stochastic differential equations (SDEs) driven by Wiener noise with discrete time observations.
Alejandra López-Pérez, Manuel Febrero-Bande, Wencesalo González-Manteiga   +2 more
doaj   +1 more source

Intrinsic expansions for averaged diffusion processes

, 2016
We show that the rate of convergence of asymptotic expansions for solutions of SDEs is generally higher in the case of degenerate (or partial) diffusion compared to the elliptic case, i.e.
Pagliarani, S., Pascucci, A., Pignotti, M.   +2 more
core   +1 more source

Insights into PI3K/AKT signaling in B cell development and chronic lymphocytic leukemia

FEBS Letters, EarlyView.
This Review explores how the phosphoinositide 3‐kinase and protein kinase B pathway shapes B cell development and drives chronic lymphocytic leukemia, a common blood cancer. It examines how signaling levels affect disease progression, addresses treatment challenges, and introduces novel experimental strategies to improve therapies and patient outcomes.
Maike Buchner
wiley   +1 more source

Protonophore activity of short‐chain fatty acids induces their intracellular accumulation and acidification

FEBS Letters, EarlyView.
The protonated form of butyrate, as well as other short‐chain fatty acids (SCFAs), is membrane permeable. In acidic extracellular environments, this can lead to intracellular accumulation of SCFAs and cytosolic acidification. This phenomenon will be particularly relevant in acidic environments such as the large intestine or tumor microenvironments ...
Muwei Jiang, Frans Bianchi, Geert van den Bogaart   +2 more
wiley   +1 more source

Original Music Album Diffusion Sustainability in Social Network-Based Communities: A Network Embedded Perspective

IEEE Access, 2020
An original music album is a collection of music created by an online musician, and is a special form of User Generated Content. This paper aims to identify the factors that drive original music album diffusion in online music community.
Genqiang Li, Renjing Liu
doaj   +1 more source