Results 71 to 80 of about 3,909 (206)
A new fast Chebyshev–Fourier algorithm for Poisson-type equations in polar geometries [PDF]
Jie Shen
openalex +1 more source
Average‐Case Matrix Discrepancy: Satisfiability Bounds
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
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
Solving the Maxwell equations by the Chebyshev method: a one-step finite-difference time-domain algorithm [PDF]
Hans De Raedt +3 more
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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
Chebyshev Collocation Method for Solving Linear Differential Equations [PDF]
İhsan Timuçin Dolapçı
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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
An Implicit-Explicit Runge--Kutta--Chebyshev Scheme for Diffusion-Reaction Equations [PDF]
J.G. Verwer, B.P. Sommeijer
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A reference material for X‐ray diffraction line profile analysis
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
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

