Results 51 to 60 of about 139,050 (252)

A monotone nonlinear cell-centered finite element method for anisotropic diffusion problems

open access: yesElectronic Journal of Differential Equations, 2019
We present a technique to correct the cell-centered finite element scheme [20] (FECC) for full anisotropic diffusion problems on general meshes, which provides a discrete maximum principle (DMP).
Nguyen Anh Dao   +2 more
doaj  

A Study on Using Hierarchical Basis Error Estimates in Anisotropic Mesh Adaptation for the Finite Element Method

open access: yes, 2011
A common approach for generating an anisotropic mesh is the M-uniform mesh approach where an adaptive mesh is generated as a uniform one in the metric specified by a given tensor M.
Kamenski, Lennard
core   +1 more source

Liquid crystal phase and waterlike anomalies in a core-softened shoulder-dumbbells system [PDF]

open access: yes, 2009
Using molecular dynamics we investigate the thermodynamics, dynamics and structure of 250 diatomic molecules interacting by a core-softened potential.
Alan Barros de Oliveira   +7 more
core   +2 more sources

ON THE EQUIVALENCE BETWEEN ONSAGER'S PRINCIPLE OF THE LEAST DISSIPATION OF ENERGY AND MAXIMUM ENTROPY PRODUCTION PRINCIPLE. CONDUCTION OF HEAT IN AN ANISOTROPIC CRYSTAL

open access: yesFizika A, 2005
An application of the Onsager's principle of the least dissipation of energy to the problem of the heat conduction in an anisotropic crystal is revisited. In the case of a steady spatial distribution of the temperature it is shown that this principle is equivalent to the principle of maximum entropy production.
Juretić, Davor   +2 more
openaire   +3 more sources

Pentagonal 2D Altermagnets: Material Screening and Altermagnetic Tunneling Junction Device Application

open access: yesAdvanced Functional Materials, EarlyView.
From a database of 170 pentagonal 2D materials, 4 candidates exhibiting altermagnetic ordering are screened. Furthermore, the spin‐splitting and unconventional boundary states in the pentagonal 2D altermagnetic monolayer MnS2 are investigated. A MnS2‐based altermagnetic tunneling junction is designed and, through ab initio quantum transport simulations,
Jianhua Wang   +8 more
wiley   +1 more source

Stable Multipoint Flux Approximation (MPFA) scheme for anisotropic porous media

open access: yesAlexandria Engineering Journal
This paper focuses on enhancing the multipoint flux approximation (MPFA) method for subsurface reservoir simulation with heterogeneous anisotropic permeability with discontinuities at grid block level.
Pijus Makauskas, Pal Mayur
doaj   +1 more source

Ultra-broadband Light Absorption by a Sawtooth Anisotropic Metamaterial Slab [PDF]

open access: yes, 2011
We present an ultra broadband thin-film infrared absorber made of saw-toothed anisotropic metamaterial. Absorbtivity of higher than 95% at normal incidence is supported in a wide range of frequencies, where the full absorption width at half maximum is ...
Avitzour Y.   +41 more
core   +2 more sources

Discrete Maximum Principle and a Delaunay-Type Mesh Condition for Linear Finite Element Approximations of Two-Dimensional Anisotropic Diffusion Problems [PDF]

open access: yesNumerical Mathematics: Theory, Methods and Applications, 2011
A Delaunay-type mesh condition is developed for a linear finite element approximation of two-dimensional anisotropic diffusion problems to satisfy a discrete maximum principle. The condition is weaker than the existing anisotropic non-obtuse angle condition and reduces to the well known Delaunay condition for the special case with the identity ...
openaire   +2 more sources

Modulating Two‐Photon Absorption in a Pyrene‐Based MOF Series: An In‐Depth Investigation of Structure–Property Relationships

open access: yesAdvanced Functional Materials, EarlyView.
This study investigates H4TBAPy‐based metal–organic frameworks (MOFs) ‐ NU‐1000, NU‐901, SrTBAPy, and BaTBAPy ‐ for multiphoton absorption (MPA) performance. It observes topology‐dependent variations in the 2PA cross‐section, with BaTBAPy exhibiting the highest activity.
Simon N. Deger   +10 more
wiley   +1 more source

Anisotropic patterns of nanospikes induces anti-biofouling and mechano-bactericidal effects of titanium nanosurfaces with electrical cue

open access: yesMaterials Today Bio
Anti-microbial nanopatterns have attracted considerable attention; however, its principle is not yet fully understood, particularly for inorganic nanopatterns.
Eiji Kato   +4 more
doaj   +1 more source

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