Results 121 to 130 of about 69,875 (273)
Nonlinear stability of extremal Reissner–Nordström black holes in spherical symmetry
Forum of Mathematics, PiIn this paper, we prove the codimension-one nonlinear asymptotic stability of the extremal Reissner–Nordström family of black holes in the spherically symmetric Einstein–Maxwell-neutral scalar field model, up to and including the event horizon.
Yannis Angelopoulos +2 more
doaj +1 more source
Advanced Engineering Materials, Volume 27, Issue 6, March 2025.The stability criteria affecting the formation of high‐entropy alloys, particularly focusing in supersaturated solid solutions produced by mechanical alloying, are analyzed. Criteria based on Hume–Rothery rules are distinguished from those derived from thermodynamic relations. The formers are generally applicable to mechanically alloyed samples.
Javier S. Blázquez +5 more
wiley +1 more source
Dynamic Precipitation during High‐Pressure Torsion of a Magnesium–Manganese Alloy
Advanced Engineering Materials, EarlyView.An ultrafine‐grained alloy is produced by high‐pressure torsion of solutionized Mg–1.35 wt% Mn. Precipitation of nanometer‐scale Mn particles during deformation provides pinning sites. This prevents the formation of a bimodal grain structure and results in a finer grain size than for pure Mg.
Julian M. Rosalie, Anton Hohenwarter
wiley +1 more source
Advanced Engineering Materials, EarlyView.Predicting extreme defects in additive manufacturing remains a key challenge limiting its structural reliability. This study proposes a statistical framework that integrates Extreme Value Theory with advanced process indicators to explore defect–process relationships and improve the estimation of critical defect sizes. The approach provides a basis for
Muhammad Muteeb Butt +8 more
wiley +1 more source
Large charge operators at large spin from relativistically rotating vortices
Journal of High Energy PhysicsWe study the ground states of CFTs with a global U(1) symmetry on ℝ × S 2 in the regime of large charge Q and large angular momentum J, using large charge EFT.
Jaehyeok Choi, Eunwoo Lee
doaj +1 more source
A Workflow to Accelerate Microstructure‐Sensitive Fatigue Life Predictions
Advanced Engineering Materials, EarlyView.This study introduces a workflow to accelerate predictions of microstructure‐sensitive fatigue life. Results from frameworks with varying levels of simplification are benchmarked against published reference results. The analysis reveals a trade‐off between accuracy and model complexity, offering researchers a practical guide for selecting the optimal ...
Luca Loiodice +2 more
wiley +1 more source
Existence and multiplicity for radially symmetric solutions to Hamilton-Jacobi-Bellman equations
Electronic Journal of Differential Equations, 2021 Xiaoyan Li, Bian-Xia Yang
doaj
Extremal solutions of $\Delta u=Pu$
Kodai Mathematical Journal, 1971 Kawai, Kazumitsu, Sario, Leo
openaire +2 more sources
Advanced Engineering Materials, EarlyView.Curvature‐tuned auxetic lattices are designed, fabricated, and mechanically characterized to reveal how geometric curvature governs stretchability, stress redistribution, and Poisson's ratio evolution. Photoelastic experiments visualize stress pathways, while hyperelastic simulations quantify deformation mechanics.
Shuvodeep De +3 more
wiley +1 more source
Locating saddle points using gradient extremals on manifolds adaptively revealed as point clouds. [PDF]
Chaos, 2023 Georgiou A +3 more
europepmc +1 more source