Results 101 to 110 of about 148,429 (293)

Non-exponential relaxation for anomalous diffusion

, 2006
We study the relaxation process in normal and anomalous diffusion regimes for systems described by a generalized Langevin equation (GLE). We demonstrate the existence of a very general correlation function which describes the relaxation phenomena.
Apostol T. M., Erdélyi A., F. A Oliveira, Ferreira J. L., I. V. L Costa, Kohlrausch F., Kohlrausch R., Kubo R., Kubo R., M. H Vainstein, Metzler R., R Morgado, Rubí J. M., Vainstein M. H., Vainstein M. H.   +14 more
core   +1 more source

BACH, a Bayesian Optimization Protocol for Accurate Coarse‐Grained Parameterization of Organic Liquids

Advanced Functional Materials, EarlyView.
We present a fully automated Bayesian optimization (BO) protocol for the parameterization of nonbonded interactions in coarse‐grain CG force fields (BACH). Using experimental thermophysical data, we apply the protocol to a broad range of liquids, spanning linear, branched, and unsaturated hydrocarbons, esters, triglycerides, and water.
Janak Prabhu, Akhil Pratap Singh, Pablo Campomanes, Stefano Vanni   +3 more
wiley   +1 more source

Davies’ method for anomalous diffusions

Proceedings of the American Mathematical Society, 2016
Davies’ method of perturbed semigroups is a classical technique to obtain off-diagonal upper bounds on the heat kernel. However Davies’ method does not apply to anomalous diffusions due to the singularity of energy measures. In this note, we overcome the difficulty by modifying the Davies’ perturbation method to obtain sub-Gaussian upper bounds on the ...
Murugan, Mathav, Saloff-Coste, Laurent
openaire   +3 more sources

Finite difference method for space-fractional seepage process in unsaturated soil

Yantu gongcheng xuebao, 2020
The transport process and seepage properties of underground water in unsaturated soil are of great research significance. Firstly, the transport process of underground water in unsaturated soil in an anomalous diffusion perspective is analyzed, and by ...
WANG Rui 1, ZHOU Hong-wei 2, ZHUO Zhuang 3, XUE Dong-jie 2, YANG Shuai 2
doaj   +1 more source

Pre-asymptotic corrections to fractional diffusion equations

, 2008
The motion of contaminant particles through complex environments such as fractured rocks or porous sediments is often characterized by anomalous diffusion: the spread of the transported quantity is found to grow sublinearly in time due to the presence of
Afanasiev, Andrea Zoia, Barkai, Barkai, Barkai, Berkowitz, Berkowitz, Berkowitz, Berkowitz, Cortis, Cortis, Cortis, Cortis, Cortis, de Hoog, Dentz, Feller, Kilbas, Kimmich, Klafter, Klemm, Levy, Mainardi, Margolin, Marseguerra, Marseguerra, Marzio Marseguerra, Metzler, Metzler, Metzler, Miller, Montroll, Podlubny, Scher, Scher, Scher, Schneider, Sokolov, Weiss, Zaslavsky, Zoia, Zoia   +41 more
core   +1 more source

Investigation of Halogen Substitution Effects in π‐Conjugated Organic Ligands of Chiral Hybrid Perovskites on Their Chiroptical Activity

Advanced Functional Materials, EarlyView.
The role of novel thiophene‐based ligands with halogen substitutions in enhancing the chiroptical and optoelectronic properties of 2D chiral HOIPs has been investigated. By tailoring ligand design, enhanced CD and CPL properties are achieved, with improved CPL discrimination in photodetectors.
Boesung Kwon, Doyeong Yeo, In‐Chul Hwang, In Hwan Jung, Joon Hak Oh   +4 more
wiley   +1 more source

Recent developments in anomalous diffusions

Mathematics and Education in Mathematics, 2023
In this paper we review briefly some of the results in the area of anomalous diffusions which are related to the anomalous aggregation phenomenon. Loosely, speaking this phenomenon occurs when a particle moves in a milieu with obstacles which alter so much its otherwise Markovian or diffusive motion that instead of free movement throughout the ...
openaire   +2 more sources

Polymer Interface Enables Reversible Quasi‐Solid Sulfur Conversion in Sodium‐Sulfur Batteries

Advanced Functional Materials, EarlyView.
The polymer interface enables a stable quasi‐solid sulfur conversion pathway in room‐temperature Na─S batteries. The coating regulates Na+ transport, stabilizes the cathode–electrolyte interphase, and accommodates mechanical stress, suppressing electrolyte decomposition and sulfur migration, thereby improving reaction uniformity, reducing polarization,
Reza Andaveh, Ying Zhao, Enzhong Jin, Zixin Zhang, Vinicius Martins, Parham Pirayesh, Yi Gan, Yi Yuan, Yijia Wang, Frederick Benjamin Holness, Changhong Cao, Jun Song, Yang Zhao   +12 more
wiley   +1 more source

Time-Fractional Model of Chloride Diffusion in Concrete: Analysis Using Meshless Method

Advances in Materials Science and Engineering, 2020
Chloride diffusion is the major factor that affects the life of concrete structures. The time-fractional order equation can be used to describe anomalous diffusion in reinforced concrete.
Ling Yao, Lixia Ren, Guoli Gong
doaj   +1 more source

The effect of the junction model on the anomalous diffusion in the 3D comb structure

, 2017
The diffusion in the comb structures is a popular model of geometrically induced anomalous diffusion. In the present work we concentrate on the diffusion along the backbone in a system where sidebranches are planes, and the diffusion thereon is anomalous
Dzhanoev, A. R., Sokolov, I. M.
core   +1 more source