Results 41 to 50 of about 49,874 (163)

Unique Mixed Valence Behavior of Tantalum and Electronic Structure of the Novel P1−xTa8+xN13(X = 0.1–0.15) Using Density Functional Theory and Soft X‐Ray Spectroscopy

open access: yesChemistry–Methods, Volume 5, Issue 12, November 2025.
An uncommon nitride featuring phosphorus surrounded by six nitrogen atoms reveals unexpected metallic behavior. Soft X‐ray spectroscopy and density functional theory uncover mixed‐valence tantalum and complex TaN bonding, unlocking new insights for future electronic and catalytic technologies.
Claude Ceniza   +4 more
wiley   +1 more source

Développement d’un modèle numérique pour la conception d’un séchage solaire sous serre des produits alimentaires

open access: yesRevue des Énergies Renouvelables, 2013
Le but de ce travail est d’améliorer l’efficacité énergétique des procédés du séchage solaire, il apparaît nécessaire d’établir des règles de conception moins empiriques et prenant mieux en compte les processus mis en jeu.
M. Al-Masri, K. Kahline
doaj  

A Parallel, Unstructured-Mesh Methodology for Device-Scale Combustion Calculations Méthodologie parallèle avec maillages destructurés pour des calculs de combustion-effet du nombre de processeurs

open access: yesOil & Gas Science and Technology, 2006
Los Alamos National Laboratories is developing a parallel, unstructured-mesh, finite-volume CFD methodology for the simulation of chemically reactive flows in complex geometries.
O'rourke P. J., Zhang S., Sahota M. S.
doaj   +1 more source

Modeling of magnetic properties of A2BB′O6 compounds using ab initio and Monte Carlo methods

open access: yesJournal of the American Ceramic Society, Volume 108, Issue 12, December 2025.
Ab initio and Monte Carlo simulations were employed to maximize the estimated Curie temperature of A2BB′O6 oxides. It was revealed that the element A ion radius should be as small as possible, while the magnetic moments of B and B′ elements should be as large as possible.
Martin Heczko   +3 more
wiley   +1 more source

Overview of the theoretical relations between necking and strain localization criteria. [PDF]

open access: yes, 2013
Many criteria have been developed during last decades to predict diffuse or localized necking and shear banding. The lack of confrontation of these models with each other on relevant applications makes their choice difficult for the designer.
ABED-MERAIM, Farid   +2 more
core   +3 more sources

Bret/BRAT

open access: yes
Critical Quarterly, EarlyView.
Nicholas Smart
wiley   +1 more source

Recursive algorithm for transition density approximation and simulation of diffusion processes

open access: yesStatistica Neerlandica, Volume 79, Issue 4, November 2025.
ABSTRACT Diffusion processes and more generally, stochastic differential equations (SDEs), are widely used to model natural and financial systems. However, accurately simulating them remains challenging due to the limitations of discretization methods. We propose a recursive algorithm to approximate the transition density of scalar diffusion processes ...
Samir Ben‐Hariz   +2 more
wiley   +1 more source

Effet de la forme d’un réacteur d’une machine frigorifique solaire à adsorption sur la distribution de température

open access: yesRevue des Énergies Renouvelables, 2014
Dans cet article, on propose une étude théorique sur les transferts de chaleur dans un générateur-adsorbeur contenant le couple charbon actif- méthanol. L’étude porte sur une comparaison de l’évolution de la température à l’intérieur des deux conceptions
F. Bouzeffour   +3 more
doaj  

Model coupling friction and adhesion for steel-concrete interfaces

open access: yes, 2009
The interface behaviour between steel and concrete, during pull-out tests, is numerically investigated using an interface model coupling adhesion and Coulomb friction. This model, first developed by Raous, Cang\'emi, Cocou and Monerie (RCCM), is based on
Karray, M'hamed Ali, Raous, Michel
core   +3 more sources

Clogging Analysis in Drip Irrigation Systems: CFD and DEM Approaches

open access: yesIrrigation and Drainage, Volume 74, Issue 4, Page 1395-1409, October 2025.
ABSTRACT Clogging represents a critical challenge that undermines the efficiency and sustainability of drip irrigation systems by inducing uneven water distribution and increasing maintenance requirements. In this study, the phenomenon of clogging in drip emitters was investigated via computational fluid dynamics (CFD) in conjunction with the discrete ...
Nuri Orhan, Berk Kalem
wiley   +1 more source

Home - About - Disclaimer - Privacy