Results 151 to 160 of about 236,866 (336)

Beyond Conventional Cooling: Advanced Micro/Nanostructures for Managing Extreme Heat Flux

open access: yesAdvanced Materials, Volume 38, Issue 5, 22 January 2026.
This review examines the design, application, and manufacturing of biomimetic or engineered micro/nanostructures for managing high heat‐flux in multi‐level electronics by enhancing conductive, convective, phase‐changing, and radiative heat transfer mechanisms, highlighting their potential for efficient, targeted thermal management, and future prospects.
Yuankun Zhang   +7 more
wiley   +1 more source

On the structure of the crown of a woody plant

open access: yesТрансформация экосистем
The crowns of trees of virginal and generative ontogenetic state of seven species of deciduous plants were studied: Ulmus glabra, Ulmus minor, Celtis sinensis, Zelkova carpinifolia, Aesculus hippocastanum, Fraxinus excelsior, in total more than 500 ...
I. S. Antonova   +2 more
doaj   +1 more source

Interface‐Induced Stability of Nontrivial Topological Spin Textures: Unveiling Room‐Temperature Hopfions and Skyrmions

open access: yesAdvanced Materials, Volume 38, Issue 1, 2 January 2026.
The first room‐temperature, zero‐field observation of stable skyrmion–hopfion spin textures in EuS─Bi2Se3─EuS trilayers is reported. Combining Lorentz TEM imaging and micromagnetic modeling, the authors unveil how interfacial Dzyaloshinskii–Moriya interaction and geometric confinement stabilize these multidimensional topological states.
Ferhat Katmis   +11 more
wiley   +1 more source

Spectral Peaked Optical Frequency Comb for Highly Sensitive Spectroscopy

open access: yesAdvanced Photonics Research, Volume 7, Issue 1, January 2026.
Optical frequency combs represent a breakthrough in metrology, and comb mode selection and power scaling are important issues for highly sensitive spectroscopy. This article reviews the development of a spectrally peaked optical frequency comb using the novel phenomenon of spectral peaking for highly sensitive spectroscopy.
Norihiko Nishizawa   +3 more
wiley   +1 more source

Paradoxical Topological Soliton Lattice in Anisotropic Frustrated Chiral Magnets

open access: yesAdvanced Science, Volume 13, Issue 5, 27 January 2026.
The article describes the discovery of a stable skyrmion‐antiskyrmion lattice (S‐AL) in anisotropic frustrated chiral magnets. This lattice has a net‐zero topological charge due to a balanced population of skyrmions and antiskyrmions. This is a paradoxical finding since these particles normally annihilate each other.
Sayan Banik   +2 more
wiley   +1 more source

Machine Learning Based Automatic Mode-Locking of a Dual-Wavelength Soliton Fiber Laser

open access: yesPhotonics
Recent years have witnessed growing research interest in dual-wavelength mode-locked fiber lasers for their pivotal role in diverse applications and the exploration of nonlinear dynamics.
Qi Yan   +7 more
doaj   +1 more source

Phase Symmetry Breaking of Counterpropagating Light in Microresonators for Switches and Logic Gates

open access: yesLaser &Photonics Reviews, Volume 20, Issue 2, 22 January 2026.
Nonlinear interactions of light in Kerr microresonators break the symmetry of both the intensities and phases of the counter‐propagating optical fields. In this work, this is utilized to build an all‐optical switch and propose designs of all‐optical XOR and universal NAND gates realizable in integrated systems.
Alekhya Ghosh   +5 more
wiley   +1 more source

Accurate and Robust Sensing of the Ionosphere With Uncoded Long Pulse ISR Measurements: 1‐Lag Profile Inversion of Ion Composition and Temperature

open access: yesRadio Science, Volume 61, Issue 1, January 2026.
Abstract Incoherent scatter radar probing of the topside F‐region ionosphere with reduced electron densities residing at relatively large radar ranges requires the use of uncoded long pulse (ULP) transmissions. In these ULP measurements the range resolution is necessarily poor, rendering the inference of ionospheric state parameters such as composition,
Binghui Wang   +3 more
wiley   +1 more source

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