Results 241 to 250 of about 304,578 (296)

Variational Modeling of Porosity Waves

PAMM, Volume 26, Issue 1, March 2026.
ABSTRACT Mathematical models for finite‐strain poroelasticity in an Eulerian formulation are studied by constructing their energy‐variational structure, which gives rise to a class of saddle‐point problems. This problem is discretized using an incremental time‐stepping scheme and a mixed finite element approach, resulting in a monolithic, structure ...
Andrea Zafferi, Dirk Peschka
wiley   +1 more source

From bound states to quantum spin models: chiral coherent dynamics in topological photonic rings. [PDF]

Nanophotonics
Davoodi F.
europepmc   +1 more source

Market Insurance and Risk Pooling in U.S. Crop Insurance

Agricultural Economics, Volume 57, Issue 2, March 2026.
ABSTRACT A common assumption is that multiple‐peril crop insurance markets suffer from market failures, thus justifying government intervention in the form of premium subsidies, operating allowances, and reinsurance agreements. One prominent rationale for intervention involves geographic correlation in agricultural production which leads to systemic ...
Fan Fan, Yong Liu, A. Ford Ramsey, David J. Leatham   +3 more
wiley   +1 more source

Generalized non-Hermitian Hamiltonian for guided resonances in photonic crystal slabs. [PDF]

Nanophotonics
Nguyen VA, Nguyen HS, Yuan Z, Nguyen DX, Dang C, Ha ST, Letartre X, Le-Van Q, Nguyen HS.   +8 more
europepmc   +1 more source

Simultaneous Detection of Compromised Items and Examinees with Item Preknowledge in Online Assessments Using Response Time Data

Journal of Educational Measurement, Volume 63, Issue 1, Spring 2026.
Abstract The rapid transition from traditional paper‐and‐pencil tests to computer‐based testing systems has significantly altered the educational landscape, particularly during the COVID‐19 pandemic. While online assessments offer numerous advantages, they also present unique challenges, with test security being paramount.
Cengiz Zopluoglu
wiley   +1 more source

Programmable state switching based on higher-order exceptional points in anti-parity-time symmetric microcavity systems. [PDF]

Sci Rep
Laha A, Beniwal D, Ghosh S, Miranowicz A.   +3 more
europepmc   +1 more source

Strain Effects in a Directly Bonded Diamond‐on‐Insulator Substrate

physica status solidi (a), Volume 223, Issue 3, 6 February 2026.
Strain effects in a directly bonded diamond‐on‐insulator substrate are investigated using NV‐based optically detected magnetic resonance and photoluminescence mapping. Enhanced volumetric and shear strain is observed near the bonded interface, but without significant degradation of NV optical properties.
Ioannis Varveris, Gianni D. Aliberti, Tianyin Chen, Filip A. Sfetcu, Diederik J. W. Dekker, Alfred Schuurmans, Nikolaj K. Nitzsche, Salahuddin Nur, Ryoichi Ishihara   +8 more
wiley   +1 more source

Closed-form spin-relativistic corrections from the Dirac equation enabling a modified Schrödinger solver. [PDF]

Sci Rep
Amaro MB, Nazeef, Dussech CJ, Qi C.
europepmc   +1 more source

Influence of Asymmetry on the Molecular and Electronic Structures of μ‐Oxo Diferric Complexes

Zeitschrift für anorganische und allgemeine Chemie, Volume 652, Issue 2, 5 February 2026.
The 6‐methyl substituents at the pyridines (shown in red) enforce longer MNpy bonds than without them (shown in green).The asymmetric dinucleating susanH2Me2 is used for the synthesis of a μ‐oxo diferric complex. Comparison to the two symmetric complexes of susan and susan6−Me shows a strong effect on the redox potentials.
Sören Jansen, Stephan Walleck, Anja Stammler, Hartmut Bögge, Thorsten Glaser   +4 more
wiley   +1 more source

Polynomial-time quantum Gibbs sampling for the weak and strong coupling regime of the Fermi-Hubbard model at any temperature. [PDF]

Nat Commun
Šmíd Š, Meister R, Berta M, Bondesan R.   +3 more
europepmc   +1 more source