Results 71 to 80 of about 3,909 (206)

Average‐Case Matrix Discrepancy: Satisfiability Bounds

open access: yesRandom Structures &Algorithms, Volume 67, Issue 3, October 2025.
ABSTRACT Given a sequence of d×d$$ d\times d $$ symmetric matrices {Wi}i=1n$$ {\left\{{\mathbf{W}}_i\right\}}_{i=1}^n $$, and a margin Δ>0$$ \Delta >0 $$, we investigate whether it is possible to find signs (ε1,…,εn)∈{±1}n$$ \left({\varepsilon}_1,\dots, {\varepsilon}_n\right)\in {\left\{\pm 1\right\}}^n $$ such that the operator norm of the signed sum ...
Antoine Maillard
wiley   +1 more source

Sonochemical Defect Engineering for Sustainable CO2 Methanation over Ni/CeO2 Catalysts with Mechanistic Insights from Operando Studies

open access: yesChemistrySelect, Volume 10, Issue 37, October 6, 2025.
Converting CO2 into synthetic fuels is a sustainable route to mitigate climate change. We developed Ni/CeO2 catalysts via sonochemical co‐precipitation with tunable oxygen vacancies. Higher defect densities enhanced CO2 methanation and CH4 selectivity via the formate pathway, as revealed by operando Raman, XPS, and H2‐TPR analyses.
Marcela A. Lucas   +2 more
wiley   +1 more source

The Onset of Depletion‐Induced Seismicity in Slip‐Weakening Faults With Interacting Peaked Shear Stresses: Uenishi and Rice Extended

open access: yesJournal of Geophysical Research: Solid Earth, Volume 130, Issue 10, October 2025.
Abstract Depletion‐induced fault slip and seismicity in the Groningen natural gas field are known to be caused by compaction of reservoir rock, most likely at locations in faults where reservoir rock juxtaposes non‐reservoir rock leading to severely‐peaked shear stresses at the reservoir‐fault corners.
J. D. Jansen, B. J. Meulenbroek
wiley   +1 more source

Solid solution quantification from full powder X‐ray diffraction profile: novel application of multivariate calibration

open access: yesJournal of Applied Crystallography, Volume 58, Issue 5, Page 1700-1711, October 2025.
A new application of quantitative chemometric models (principal component regression and partial least‐squares regression) to powder X‐ray diffraction data is tested. The approach allows evaluation of the relative composition of solid solutions via the characteristic profile shift.
Laura Macchietti   +4 more
wiley   +1 more source

A reference material for X‐ray diffraction line profile analysis

open access: yesJournal of Applied Crystallography, Volume 58, Issue 5, Page 1764-1777, October 2025.
A nanocrystalline Fe–1.8%Cr steel powder is proposed as a reference material for testing different powder diffraction instruments and configurations, as well as different data‐analysis methodologies.A nanocrystalline Fe–1.8%Cr steel powder was tested as a reference material on more than five powder diffraction instruments and configurations, as well as
P. Scardi   +5 more
wiley   +1 more source

Complete‐coverage path planning for surface inspection of cable‐stayed bridge tower based on building information models and climbing robots

open access: yesComputer-Aided Civil and Infrastructure Engineering, Volume 40, Issue 25, Page 4149-4171, 20 October 2025.
Abstract Climbing robots present transformative potential for automated structural inspections, yet their deployment remains limited by the reliance on manual control due to the absence of effective environment perception and path‐planning solutions.
Zhe Xia   +8 more
wiley   +1 more source

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