Results 211 to 220 of about 1,245,923 (288)

A Phasefield Model for Combined Brittle and Ductile Fracture in a Heterogeneous Domain

open access: yesProceedings in Applied Mathematics and Mechanics, Volume 26, Issue 4, December 2026.
ABSTRACT This contribution presents a phasefield approach to simulating combined brittle and ductile fracture in a materially heterogeneous domain consisting of a ductile 100Cr6 steel matrix and various non‐metallic, brittle inclusions. The matrix subdomain is modeled with von Mises plasticity with linear isotropic hardening, while the inclusions are ...
Ronjit Medda   +2 more
wiley   +1 more source

Symplecticity‐Preserving Prediction of Parameter‐Dependent Hamiltonian Dynamics by Generalized Kernel Interpolation

open access: yesProceedings in Applied Mathematics and Mechanics, Volume 26, Issue 4, December 2026.
ABSTRACT We extend the kernel‐based symplectic predictor introduced by Herkert et al. (2026) to a parameter‐augmented setting in which the learned flow‐map surrogate depends not only on the state, but also on additional variables such as physical parameters and macro time‐step sizes. The method uses a product kernel ansatz on a parameter and macro step
Robin Herkert   +2 more
wiley   +1 more source

Brown–Proschan Repair Policy for Repairable Systems Using the Discrete Weibull Failure Distribution and Markov Chains

open access: yesQuality and Reliability Engineering International, Volume 42, Issue 8, Page 4905-4914, December 2026.
ABSTRACT A repairable system operates under a maintenance strategy involving scheduled preventive maintenance (PM) and corrective repair actions following failures. This study develops an exact analytical methodology using Markov chains with discrete states and time to calculate the expected number of failures E[N(t)]$\mathop {\mathbb {E}}[N(t)]$ under
Danilo G. O. Valadares   +3 more
wiley   +1 more source

Revisiting the essential steps of the mini-culotte technique. [PDF]

open access: yesEur Heart J Case Rep
Nanjappa V, Sreedhara R, Sadanand KS.
europepmc   +1 more source

Quantum Machine Learning for Cybersecurity: A Taxonomy and Future Directions

open access: yesSoftware: Practice and Experience, Volume 56, Issue 12, Page 1538-1556, December 2026.
ABSTRACT Context The rapid increase in cyber threats, coupled with increasingly sophisticated attack strategies and the exponential growth of data in recent years, has exposed significant limitations in classical machine learning, rule‐based, and signature‐based defense mechanisms.
Siva Sai   +5 more
wiley   +1 more source

Science Needs for a Terrestrial Biosphere Tipping Point Early Warning System

open access: yesReviews of Geophysics, Volume 64, Issue 4, December 2026.
Abstract Tipping points in the Earth system have the potential to cause major detrimental impacts to the biosphere and societies. Their inherent nonlinearity implies that even relatively small additional increases in external forcing might result in disproportionately large adjustments to components of the Earth system.
Jesse F. Abrams   +13 more
wiley   +1 more source

From the Gulf of Guinea to the Global Stage: Africa’s Voice in the Age of Climate Intervention

open access: yesPerspectives of Earth and Space Scientists, Volume 7, Issue 1, December 2026.
Abstract Climate intervention technologies, Solar Radiation Management (SRM) and marine Carbon Dioxide Removal (mCDR), are moving from theoretical proposal to serious policy consideration, yet the scientific communities and governance frameworks shaping these decisions remain concentrated in the Global North, while the populations most exposed to ...
Frédéric Kpèdonou Bonou
wiley   +1 more source

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