Results 121 to 130 of about 117,223 (220)

Automated AI‐Based Lung Disease Classification Using Point‐of‐Care Ultrasound

Applied AI Letters, Volume 7, Issue 1, February 2026.
Automated, AI‐based Lung Disease Classification using Point‐of‐Care Ultrasound. ABSTRACT Timely and accurate diagnosis of lung diseases is critical for reducing related morbidity and mortality. Lung ultrasound (LUS) has emerged as a useful point‐of‐care tool for evaluating various lung conditions.
Nixson Okila, Andrew Katumba, Joyce Nakatumba‐Nabende, Sudi Murindanyi, Jonathan Serugunda, Cosmas Mwikirize, Samuel Bugeza, Anthony Oriekot, Juliet Bosa, Eva Nabawanuka   +9 more
wiley   +1 more source

Fission of quasi-static dissipative solitons in chiral nematics

Giant
Dissipative solitons in liquid crystals (LCs) are represented by three-dimensional solitary waves of director deformation called directrons. The only one exception on the quasi-static counterparts of directrons has ever been observed in achiral nematics.
Jian-Zhou Lin, Ao-Jie Wu, Li-Ting Zhu, Ke-Hui Wu, Sen-Sen Li, Lu-Jian Chen   +5 more
doaj   +1 more source

Stable three-dimensional spinning optical solitons supported by competing quadratic and cubic nonlinearities

, 2002
We show that the quadratic interaction of fundamental and second harmonics in a bulk dispersive medium, combined with self-defocusing cubic nonlinearity, give rise to completely localized spatiotemporal solitons (vortex tori) with vorticity s=1. There is
Buryak, A. V., Crasovan, L. C., Lederer, F., Malomed, B. A., Mazilu, D., Mihalache, D., Torner, L., Towers, I.   +7 more
core   +1 more source

Solitons on Tori and Soliton Crystals [PDF]

Communications in Mathematical Physics, 2014
Necessary conditions for a soliton on a torus $M=\R^m/ $ to be a soliton crystal, that is, a spatially periodic array of topological solitons in stable equilibrium, are derived. The stress tensor of the soliton must be $L^2$ orthogonal to $\ee$, the space of parallel symmetric bilinear forms on $TM$, and, further, a certain symmetric bilinear form on $
openaire   +4 more sources

Self‐Creation of Accelerated Temporal Mirrors

Advanced Physics Research, Volume 5, Issue 2, February 2026.
The field of temporal analog effects is rapidly emerging and seen as a driver of a paradigm shift in photonics. It promises striking new phenomena but remains experimentally challenging. This work introduces a mechanism that automatically creates a temporal mirror with simple optical means, unlocking practical access to extreme nonlinear dynamics and ...
Oliver Melchert, Surajit Bose, Uwe Morgner, Ihar Babushkin, Ayhan Demircan   +4 more
wiley   +1 more source

Differentiable Manifolds and Geometric Structures

Mathematics
This editorial presents 26 research articles published in the Special Issue entitled Differentiable Manifolds and Geometric Structures of the MDPI Mathematics journal, which covers a wide range of topics particularly from the geometry of (pseudo ...
Adara M. Blaga
doaj   +1 more source

Magnetic Solitons and Thickness‐Dependent Magnetization Reversal in Interconnected Helical Nanowire Arrays

Advanced Physics Research, Volume 5, Issue 2, February 2026.
3D magnetic interconnected helical nanowire arrays are fabricated and shown to host a variety of magnetic solitons. It is observed that the magnetic reversal mechanism is repeatable and not stochastic for a consistent direction of the applied field. Additionally, changing the shape of the nanowire arrays alters the magnetic solitons that form, but the ...
John Fullerton, Joey Koenig, Charudatta Phatak   +2 more
wiley   +1 more source

Magnetic Solitons and Thickness‐Dependent Magnetization Reversal in Interconnected Helical Nanowire Arrays (Adv. Phys. Res. 2/2026)

Advanced Physics Research, Volume 5, Issue 2, February 2026.
Magnetic Solitons Appear in 3D Interconnected Nanohelices A new study shows how magnetic domain walls and linked vortex‐anti‐vortex pairs can form in 3D nanowire arrays formed of interconnected helices. In Research Article e00135, Charudatta Phatak and co‐workers show how 3D geometric design can control both the solitons that form and the magnetization
John Fullerton, Joey Koenig, Charudatta Phatak   +2 more
wiley   +1 more source

Hermite–Gaussian solitons in 1+2 dimensional nonlocal nonlinear systems with Y0-oscillatory response

AIP Advances
We investigate the Hermite–Gaussian solitons in 1+2 dimensional nonlocal nonlinear systems with Y0-oscillatory response. The iterative solution of the solitons is numerically found using the accelerated imaginary-time evolution method with amplitude ...
Jing Wang, Xiyue Li, Peishan Zhang, Wei Hu   +3 more
doaj   +1 more source

Wavelength and interval tunable second-order bound solitons in mode-locked fiber laser based on Lyot filter

Results in Physics
The wavelength and interval tunable second-order bound solitons are generated in a nonlinear polarization rotation mode-locked fiber laser based on a Lyot filter in this paper. The Lyot filter structure is composed of two polarization controllers, two in-
Juanfen Wang, Shuai Liu, Xin Wei, Xianwei Pan, Lingzhen Yang, Pingping Xue, Linlin Fan   +6 more
doaj   +1 more source