Results 221 to 230 of about 1,589,926 (279)

Overshooting of Hypoplastic Models With Intergranular Strain: Manifestation, Implications and Remedy

open access: yesInternational Journal for Numerical and Analytical Methods in Geomechanics, Volume 50, Issue 13, Page 5068-5091, September 2026.
ABSTRACT Intergranular strain extensions of hypoplasticity (IGS, ISA, GIS) are widely used to model small‐strain and cyclic soil behaviour. However, recent studies and our own simulations reveal that these models can exhibit stress overshooting not only under repeated small loading cycles but also during monotonic loading.
Jan Machaček   +2 more
wiley   +1 more source

A Semi‐Discrete Lagrangian‐Eulerian Numerical Scheme for Diffusive‐Dispersive Conservation Laws With Discontinuous Coefficient

open access: yesNumerical Methods for Partial Differential Equations, Volume 42, Issue 5, September 2026.
ABSTRACT In this work, we present an extension of the semi‐discrete Lagrangian‐Eulerian numerical scheme for diffusive‐dispersive conservation law problems, including a jump discontinuous flux function. As in the one‐dimensional scalar hyperbolic case, the no‐flow curves also organize the geometry of the method.
Eduardo Abreu   +2 more
wiley   +1 more source

Rothe Time Discretization and Weak Solutions for a Cutoff Westervelt System

open access: yesNumerical Methods for Partial Differential Equations, Volume 42, Issue 5, September 2026.
ABSTRACTWe study a fully implicit Rothe time discretization for a cutoff first‐order formulation of the Westervelt equation. The key ingredients are the enthalpy variable and the primitive mobility variable, which turn each nonlinear time step into a uniformly monotone elliptic problem and avoid higher‐order energy estimates and inverse inequalities ...
Marvin Fritz
wiley   +1 more source

The global inverse fractional conductivity problem. [PDF]

open access: yesCalc Var Partial Differ Equ
Covi G, Railo J, Zimmermann P.
europepmc   +1 more source

Long‐Time H1$$ {H}^1 $$‐Stability of the Cauchy One‐Leg θ$$ \theta $$‐Method for the Navier‐Stokes Equations

open access: yesNumerical Methods for Partial Differential Equations, Volume 42, Issue 5, September 2026.
ABSTRACT In this paper we study the long‐time stability of the Cauchy one‐leg θ$$ \theta $$‐methods for the two‐dimensional Navier‐Stokes equations. We establish the uniform dissipativity in H1$$ {H}^1 $$, in the sense that the semi‐discrete‐in‐time approximations possess a global attractor for a small enough time step, using the discrete Grönwall ...
Isabel Barrio Sanchez   +2 more
wiley   +1 more source

2‐Vinylpyridine Plasma Polymers as Anion Exchange Membranes in Low Temperature Electrolyzers: Structure‐Property Relationships and Proof of Concept

open access: yesPlasma Processes and Polymers, Volume 23, Issue 9, September 2026.
2‑vinylpyridine (2VP) plasma polymers were deposited by PECVD and post‐functionalized. Chemically homogeneous films containing vinyl pyridinium groups with competitive ionic conduction were obtained. A water electrolysis cell using a 2VP plasma polymer as an anion‐exchange membrane reached 1 A·cm−2 at 2 V, demonstrating a highly promising proof of ...
Raphaël Costes   +6 more
wiley   +1 more source

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