Results 171 to 180 of about 3,915 (243)

Stability analysis and numerical simulation of nonlocal extended epidemic models using positivity-preserving scheme. [PDF]

Sci Rep
Yousuf M, Alshakhoury N.
europepmc   +1 more source

Weak Solutions for a Class of Nonlocal Singular Problems Over the Nehari Manifold

Mathematical Methods in the Applied Sciences, Volume 49, Issue 11, Page 12360-12378, 30 July 2026.
ABSTRACT In this paper, we consider a nonlocal model of dilatant non‐Newtonian fluid with a Dirichlet boundary condition. By using the Nehari manifold and fibering map methods, we obtain the existence of at least two weak solutions, with sign information.
Zhenfeng Zhang, Calogero Vetro, Tianqing An   +2 more
wiley   +1 more source

Vibration Analysis of Multilayer Stepped Cross-Sectional Carbon Nanotubes. [PDF]

Nanomaterials (Basel)
Yildiz YO, Sen M, Yigid O, Huseyinoglu M, Kara SE.   +4 more
europepmc   +1 more source

Surface and Boundary Corrections in Peridynamics Using Optimized Nodal Influence Weights

International Journal for Numerical Methods in Engineering, Volume 127, Issue 14, 30 July 2026.
ABSTRACT Peridynamics (PD), similarly to some other nonlocal continuum theories, exhibits truncated interaction horizons near free surfaces, cracks, and voids in bounded domains. This loss of neighbors causes artificial surface effects and inconsistencies in the derivative and energy operators that persist under discretization refinement, limiting PD ...
Arman Shojaei, Greta Ongaro, Alexander Hermann, Stewart A. Silling, Patrizia Trovalusci, Christian J. Cyron   +5 more
wiley   +1 more source

A Time-Symmetric and Retrocausal Resolution of the EPR Paradox. [PDF]

Entropy (Basel)
Heaney MB.
europepmc   +1 more source

TRACERS Small‐Scale Field‐Aligned Currents and Intense GPS Amplitude and Phase Scintillations in the Nightside Auroral Region

Geophysical Research Letters, Volume 53, Issue 14, 28 July 2026.
Abstract We present conjugate observations of ionospheric small‐scale magnetic perturbations (dB) $(dB)$ and GPS scintillations from the Tandem Reconnection and Cusp Electrodynamics Reconnaissance Satellites (TRACERS) and the Canadian High Arctic Ionospheric Network (CHAIN) during a storm‐time substorm on 9 August 2025 in the nightside auroral region ...
Yangyang Shen, Robert J. Strangeway, Hao Cao, James M. Weygand, Jiashu Wu, Anthony McCaffrey, P. T. Jayachandran, Daniel Billett, Magnus F. Ivarsen, Christopher Watson, Sheng Tian, Marit Oieroset, David Miles   +12 more
wiley   +1 more source

A damage-structured PDE model of stem cell hierarchies: The dual role of dedifferentiation in tissue homeostasis and aging. [PDF]

PLoS One
Wang LS, Yu J, Liu Z.
europepmc   +1 more source

Vortex Light Bullets Guided by Disclination Defects

Nanophotonics, Volume 15, Issue 14, 27 July 2026.
A new class of stable and thresholdless light bullets carrying vorticity, guided by the disclination defects introduced into Su–Schrieffer–Heeger‐like lattices with a focusing cubic nonlinearity, is reported. Different discrete rotational symmetry of the aperiodic lattice determines the allowed values of the topological charge of the vortex bullets ...
Zhuo Zhang, Sergey K. Ivanov, Yongdong Li, Yaroslav V. Kartashov, Yiqi Zhang   +4 more
wiley   +1 more source

An exploration of the electromagnetic boundary conditions for two-dimensional materials with out-of-plane polarization. [PDF]

Appl Phys B
Hansen A, Mišković ZL.
europepmc   +1 more source

Third Harmonic Generation in Transparent Longitudinal Epsilon‐Near‐Zero Multilayers

Nanophotonics, Volume 15, Issue 14, 27 July 2026.
Transparent longitudinal epsilon‐near‐zero stacks enable field‐enhanced nonlinear light generation while preserving high near‐infrared pump transmission. Broadband third‐harmonic generation is experimentally observed demonstrating that TLENZ architectures can mitigate pump‐loss limitations and offer a promising platform for transparent nonlinear ...
Wallace Jaffray, Sven Stengel, Domenico de Ceglia, Neset Akozbek, Filippo Capolino, Marcello Ferrera, Michael Scalora, Maria Antonietta Vincenti   +7 more
wiley   +1 more source