Results 211 to 220 of about 96,434 (313)

Positive solutions for singular nonlocal boundary value problems involving nonlinear integral conditions [PDF]

, 2014
Baoqiang Yan, Donal 'Regan, Ravi P. Agarwal   +2 more
openalex   +1 more source

Accurate iodine quantification and residual error reduction with principal component analysis multimaterial decomposition using spectral CT

Medical Physics, Volume 53, Issue 4, April 2026.
Abstract Background Multimaterial decomposition (MMD) in dual‐energy CT enables iodine quantification, critical for diagnostic applications. However, residual errors from noniodine materials in iodine maps limit accuracy, especially in complex thoracic regions and low‐dose settings.
Hamidreza Khodajou‐Chokami, Huanjun Ding, Sabee Molloi   +2 more
wiley   +1 more source

Instability by Extension of an Elastic Nanorod. [PDF]

Nanomaterials (Basel)
Berecki A, Glavardanov V, Mihok S, Grahovac N, Zigic M.   +4 more
europepmc   +1 more source

Numerical analysis of a class of penalty discontinuous Galerkin methods for nonlocal diffusion problems [PDF]

Qiang Du, Lili Ju, Jianfang Lu, Xiaochuan Tian   +3 more
openalex   +1 more source

One‐Dimensional Acoustic Plasmons in Metallic Single‐Walled Carbon Nanotubes

Nanophotonics, Volume 15, Issue 7, 13 April 2026.
Acoustic plasmons are collective out‐of‐phase charge oscillations that exhibit a sound‐like linear dispersion relation. They have been realized in metal‐insulator‐metal (MIM) structures, such as two‐dimensional graphene on a mirror. Here, we propose one‐dimensional (1D) acoustic plasmons and excitation schemes using a nanotube‐on‐a‐mirror geometry. The
GyeongPyo Jeon, Sihan Zhao, In‐Ho Lee, SeokJae Yoo   +3 more
wiley   +1 more source

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

Hybrid Metalens–Compressive Sensing Imaging System for Ultra‐Low‐Power Edge Detection

Nanophotonics, Volume 15, Issue 8, 24 April 2026.
We propose an ultra‐low‐power edge detection imaging system through the combination of a spiral metalens and a compressive sensor. By moving the edge detection to a passive optical element, not only is the required power reduced but also the encoded edge image provides rich high‐frequency information, which provides high‐fidelity image reconstruction ...
Sejin Yoon, Hasung Kim, Hyunkeun Lee, Trevon Badloe   +3 more
wiley   +1 more source

Freeform Mode-Engineered Metasurfaces. [PDF]

Nano Lett
Jiang Z, Dai T, Guo S, Sohag SH, Shao Y, Mao C, Alù A, Fan JA, Zhou Y.   +8 more
europepmc   +1 more source

Impact of Quantum Gravity on the UV Sensitivity of Extremal Black Holes

Fortschritte der Physik, Volume 74, Issue 4, April 2026.
ABSTRACT Recent work has revealed that extremal Kerr black holes may exhibit a sensitivity to higher‐derivative corrections to Einstein's equations, displaying singularities in the tidal forces at the horizon. However, in a purely gravitational context, this “ultraviolet sensitivity” translates into a strong dependence on the Wilson coefficients in the
Francesco Del Porro, Francesco Ferrarin, Alessia Platania   +2 more
wiley   +1 more source

Comparative thermoelastic analysis of semiconductors with an external heat source under three theories. [PDF]

Sci Rep
Das B, Islam N, Lahiri A.
europepmc   +1 more source