Results 241 to 250 of about 8,406,664 (294)

Perspective: Hollow Core Optical Fibres for Ultraviolet and Visible Wavelengths

Advanced Science, EarlyView.
Hollow core optical fibres bypass material constraints that limit optical fibres at ultraviolet and visible wavelengths. However, their challenging fabrication has limited their development, and significant gains in performance remain possible. In this perspective we outline approaches to enable the next generation of fibres for shorter wavelengths ...
Robbie Mears, Kerrianne Harrington, Jonathan C. Knight, William J. Wadsworth, James M. Stone, Tim A. Birks   +5 more
wiley   +1 more source

A self-supervised GNN-Transformer framework for weak microseismic signal identification. [PDF]

Sci Rep
Liu M, Deng Z, Li Y, Zhang Z, Fu T.
europepmc   +1 more source

Photonic Time Crystals and Time‐Varying Electromagnetic Metamatter: A New Direction for Ultrafast Tunable Photonic and Microwave Materials and Devices

Advanced Science, EarlyView.
Photonic time crystals (PTCs) are systems in which electromagnetic parameters are modulated periodically in time, producing momentum bandgaps via temporal scattering rather than spatial Bragg processes. This review examines the theoretical frameworks, modeling, and computational tools for time‐varying media, and summarizes experimental demonstrations ...
Ranjan Kumar Patel, Shriram Ramanathan, Ronald P. Jenkins, Michael J. Carter   +3 more
wiley   +1 more source

Retinex-based low-light image enhancement with multi-channel feature optimization. [PDF]

Sci Prog
Wang Z, Qiao Y, Cang Y.
europepmc   +1 more source

Financial time series forecasting with a hybrid VMD-CSA-BiT framework. [PDF]

Sci Rep
Zhao G, Ouyang J, Yang J.
europepmc   +1 more source

Spatiotemporal cross-attention hybrid network for weather forecasting in complex terrain. [PDF]

Sci Rep
Yang Z, Sang H, Wang Y, Wang Q, Liu J, Du K, Mou L, Chen Y.   +7 more
europepmc   +1 more source

Memristive singular value decomposition. [PDF]

Nat Commun
Ding C, Liu Z, Zhang Y, Li C, Tang J, Gao B, Yu H, Wu H, Wong N.   +8 more
europepmc   +1 more source

A Hybrid Deep Learning Framework for Multi-Sensor PMSM Fault Diagnosis Based on SVMD Denoising and Spatiotemporal Feature Fusion. [PDF]

Sensors (Basel)
Guan M, Peng Y, Xie Y.
europepmc   +1 more source

Channel-resolved excitation trends in Si, GaAs, and NiO for sub-GeV dark matter detection. [PDF]

Sci Rep
Sharaf MAM.
europepmc   +1 more source

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Generalized multi-scale image decomposition for new tone manipulation

Digital Signal Processing, 2023
Xu Guanlei
exaly   +2 more sources