Results 61 to 70 of about 7,028 (257)

Non-Markovian stochastic processes and their applications: from anomalous diffusion to time series analysis

, 2008
This work provides a forward step in the study and comprehension of the relationships between stochastic processes and a certain class of integral-partial differential equation, which can be used in order to model anomalous diffusion and transport in ...
Mura, Antonio <1978>
core   +1 more source

Quantitative phase-field modeling for dilute alloy solidification involving diffusion in the solid [PDF]

, 2009
An antitrapping current scheme for quantitative phase-field model A. Karma, Phys. Rev. Lett. 87, 115701 2001 is extended to solidification process in a dilute binary alloy system involving diffusion in the solid.
Matsuura, Kiyotaka, Ohno, Munekazu
core   +1 more source

Ultrasmall High‐Entropy Materials: Nanoscale Effects, Synthesis, and Mechanistic Insights

Advanced Functional Materials, EarlyView.
This review article focuses on sub‐10 nm high‐entropy materials that combine nanoscale design with complex compositions for next‐generation applications. ABSTRACT Ultrasmall high‐entropy nanomaterials (USHENMs, <10 nm) merge multicomponent chemistry with size‐dependent effects, forming a distinct class of materials with unprecedented properties.
Yueyue He, Wenbo Wang, Simon Schweidler, Yanjiao Ma, Ben Breitung, Torsten Brezesinski   +5 more
wiley   +1 more source

Investigating Diffusion Using Video Scanning Tunneling Microscopy and Deep Learning [PDF]

, 2022
Diffusion is a ubiquitous phenomenon encompassing a wide range of physical systems from atomic scale motion to cellular locomotion. Diffusion plays a central role in practical applications such as electrochemistry, batteries, and thin film growth.
Aikawa, Andrew Shunichi
core  

Is It Real Type‐II or S‐Scheme? A Three‐Phase Diagnostic Protocol for Identifying Potentially Mislabeled Heterojunction Photocatalysts

Advanced Functional Materials, EarlyView.
Diagnostic analysis via the heterojunction validation funnel. The funnel illustrates the hierarchical stratification of 30 reported Type‐II systems based on the three‐phase, seven‐step diagnostic framework. Complete validation through all phases is achieved by only 3.3% of systems, while 96.7% lack full mechanistic validation, revealing a pervasive ...
Ki‐Hyun Kim
wiley   +1 more source

An Efficient Solver for Fractional Diffusion on Unbounded Combs with Exact Absorbing Boundary Conditions

Fractal and Fractional
Despite its importance in modeling subdiffusion in fractal and heterogeneous media, a rigorous and computational scheme for solving the fractional diffusion equation on generalized comb structures over unbounded domains has remained elusive, mainly due ...
Jingyi Mo, Guitian He, Yan Tian, Hui Cheng   +3 more
doaj   +1 more source

Transient Charging of Mixed Ionic‐Electronic Conductors by Anomalous Diffusion

Advanced Materials, EarlyView.
This article explores charge transport in mixed ionic‐electronic conductors (MIECs) through electrochemical impedance spectroscopy and transient current analysis. Focusing on PEDOT:PSS, WO3, and n‐doped PBDF, it uncovers the impact of anomalous diffusion via fractional modeling. The study reveals key correlations that deepen understanding and guide the
Heyi Zhang, Gonzalo Rivera‐Sierra, Shirin Siahjani‐Gultekin, Jenifer Rubio‐Magnieto, Anis Allagui, Ignacio Sanjuán, David Franco, Antonio Guerrero, Enrique H. Balaguera, Juan Bisquert   +9 more
wiley   +1 more source

Multidimensional and Nonlinear Fractional Langevin Equations: Advancing the Theory in of Anomalous Diffusion

This paper presents a comprehensive theoretical analysis of fractional Langevin equations (FLEs) and their applications in modeling anomalous diffusion processes.
Chen, Dinghui
core   +1 more source

An intercomparison and evaluation of aircraft-derived and simulated CO from seven chemical transport models during the TRACE-P experiment [PDF]

, 2003
Four global scale and three regional scale chemical transport models are intercompared and evaluated during NASA's Transport and Chemical Evolution over the Pacific (TRACE-P) experiment.
Palmer, P I, Kiley, C M, Pierce, R. B., Palmer, P. I., Wild, O., Jacob, D. J., Carmichael, G R, Fuelberg, H. E., Pickering, K. E., Logan, J. A., Kiley, C. M., Fairlie, T D, Streets, D G, Streets, D. G., Allen, D J, Pickering, K E, Jacob, D J, Shaack, T. K., Fuelberg, H E, Pierce, R B, Sachse, G. W., Allen, D. J., Sachse, G W, Mari, C., Tang, Y H, Mari, C, Logan, J A, Shaack, T K, Wild, O, Carmichael, G. R., Fairlie, T. D., Tang, Y. H.   +31 more
core   +1 more source

Microscopic Insights into Magnetic Warping and Time‐Reversal Symmetry Breaking in Topological Surface States of Rare‐Earth‐Doped Bi2Te3

Advanced Materials, EarlyView.
Magnetic doping of the topological insulator Bi2Te3 with erbium adatoms induces out‐of‐plane magnetism and breaks time‐reversal symmetry, opening a Dirac gap and driving a Fermi surface transition from hexagonal to star‐of‐David geometry. Microscopy, spectroscopy, and magnetic dichroism reveal atomically controlled magnetic interactions that tailor the
Beatriz Muñiz Cano, Fabián Calleja, Ji Dai, Massimo Tallarida, Vera Marinova, Alessandro Barla, Marc G. Cuxart, Pierluigi Gargiani, Gonzalo N. Molina, José Angel Silva‐Guillén, Adriana I. Figueroa, Kevin García‐Díez, Sergio O. Valenzuela, Aitor Mugarza, Amadeo L. Vázquez de Parga, Rodolfo Miranda, Francisco Guinea, Manuela Garnica, Miguel A. Valbuena   +18 more
wiley   +1 more source