Results 191 to 200 of about 2,420,038 (307)

Revealing Dust Source Changes in East Asia From Past to Future: An Interpretable Deep Learning Approach

Land Degradation &Development, EarlyView.
ABSTRACT Aeolian dust source areas are controlled by climate and human activities and are closely associated with land degradation, yet their long‐term evolution under global warming remains insufficiently quantified. An integrated framework that couples a U‐Net segmentation model with Shapley Additive Explanations (SHAP) was built to map and attribute
Yanyu Li, Qizhong Wu, Xueshun Chen, Jiang Yue, Jieying He, Huaqiong Cheng   +5 more
wiley   +1 more source

Hybrid RF FSO communication for 6G improving secrecy and performance under composite weibull lognormal fading and turbulence. [PDF]

Sci Rep
Kaushik K, Upadhyay D, Venu N, Rallapalli S, Chhabra G.   +4 more
europepmc   +1 more source

Metasurface‐Based Polarization‐Controlled Generation of 128‐Dimensional Vector Vortex Combs

Laser &Photonics Reviews, EarlyView.
The generation and continuous control of 128‐dimensional vector vortex combs using a single metasurface is reported. This work creates a class of structured light that uniquely integrates ultrahigh dimensionality with vector properties, and represents a crucial step toward on‐chip, reconfigurable generators for ultrahigh‐dimensional vector structured ...
Jiaqi Wang, Wenxi Wang, Wen Chen
wiley   +1 more source

Methods for Improving the Straightness Accuracy of Laser Fiber-Based Collimation Measurement. [PDF]

Sensors (Basel)
Zhang Y, Jia P, Feng Q, Zheng F, Long F, Ma C, Yang L.   +6 more
europepmc   +1 more source

Invariance Properties and Measurement of Correlation Between Two Propagating or Evanescent Waves

Laser &Photonics Reviews, EarlyView.
This work analyses the strength of correlation between two propagating or evanescent plane waves generally expressed in different frames. Interferometric and nanoscattering‐based methods, respectively, are demonstrated for their measurement. The results show that the applied measure of correlation remains invariant under unitary polarization ...
Zhen Dong, Kimmo Saastamoinen, Andreas Norrman, Yahong Chen, Ari T. Friberg, Tero Setälä   +5 more
wiley   +1 more source

Robust high-capacity free-space optical communication using OAM-based structured light and intelligent adaptive signal processing. [PDF]

Sci Rep
Ahmad M, Hayat B, Fang M, Wang C, Xie G, Huang Z.   +5 more
europepmc   +1 more source

Dual‐Metasurface‐Integrated Fiber Array for Bidirectional Cylindrical‐Vector‐Beam Multiplexed Communication Using Off‐Axis Spatial Manipulation

Laser &Photonics Reviews, EarlyView.
A dual‐layer metasurface is integrated on a fiber‐array facet to realize compact, plug‐and‐play free‐space optical links with cylindrical vector beam (CVB) space‐division multiplexing. An optimized off‐axis collimation layer steers multiple channels, while a Dammann vortex layer performs polarization–topology conversion for bidirectional CVB (de ...
Xipeng Lu, Jinke Li, Jin Tae Kim, Shaoyan Li, Hongliang Li, Duk‐Yong Choi, Sang‐Shin Lee   +6 more
wiley   +1 more source

Spectral efficient and high data rate ring topology based UWOC system with carrier-free optical add-drop nodes. [PDF]

PLoS One
Armghan A, Chaoui S, Alsharari M, Aliqab K, Ghafoor S, Ijaz M, Mirza J.   +6 more
europepmc   +1 more source

Improved Corrosion Resistance of a Micro‐Alloyed Carbon Steel Assessed by Multi‐Element Electrical Resistance Probes and Coupons in Natural Seawater and Soil

Materials and Corrosion, EarlyView.
Multi‐element electrical resistance probes fabricated from industrial carbon steels enable real‐time corrosion monitoring in natural seawater and soil. A micro‐alloyed grade (AMLoCor) demonstrates up to 2.4 times improved uniform corrosion resistance over conventional S355 GP steel.
Erwan Diler, Johan Becker, Thomas Urios
wiley   +1 more source

Parallel-Channel PIV System for Time-Resolved Measurement of Shock Wave Reflection and Diffraction. [PDF]

Sensors (Basel)
Zhao T, Wu Z, Yang J, Guan J, Li J, Li G.   +5 more
europepmc   +1 more source