Results 101 to 110 of about 28,466 (187)

Long‐Range Polariton Canalization in a Graphene‐Nanoribbon–Covered MgTeMoO6 Metasurface

open access: yesNanophotonics, Volume 15, Issue 9, 13 May 2026.
Simulated Re(Ez) field distributions at ω = 924 cm−1 for the graphene grating, MgTeMoO6 grating, the proposed hybrid structure, and the corresponding IFCs in (kx, ky) space are shown. Re(Ez) field maps in the x–y plane at ω = 924 cm−1 for Ef = 50, 70, 74, 76, 80, and 88 meV.
Chia‐Chien Huang
wiley   +1 more source

MODIFIED ARCHITECTURE OF LOSSLESS IMAGE COMPRESSION BASED ON FPGA FOR ON-BOARD DEVICES WITH CCD-LINE

open access: yesМіжнародний науково-технічний журнал "Проблеми керування та інформатики"
A detailed review of methods and technologies for image compression in remote sensing problems is given. A modified lossless image compression technology for onboard systems with a single scanning CCD–ruler is proposed.
Б.П. Русин   +2 more
doaj   +1 more source

Reconfigurable Analog Computing Metasurfaces Based on Thin Film Lithium Niobate

open access: yesNanophotonics, Volume 15, Issue 9, 13 May 2026.
A transmissive reconfigurable analog computing metasurface based on a simple TFLN structure is demonstrated. The proposed metasurface is truly flexible and capable of switching between different computing functions, such as first‐order differentiation, second‐order differentiation, and integration.
Huan Chen   +4 more
wiley   +1 more source

TEXT COMPRESSION ALGORITHMS - A COMPARATIVE STUDY [PDF]

open access: yesICTACT Journal on Communication Technology, 2011
Data Compression may be defined as the science and art of the representation of information in a crisply condensed form. For decades, Data compression has been one of the critical enabling technologies for the ongoing digital multimedia revolution. There
S. Senthil, L. Robert
doaj  

Fractal image compression [PDF]

open access: yes
Fractals are geometric or data structures which do not simplify under magnification. Fractal Image Compression is a technique which associates a fractal to an image. On the one hand, the fractal can be described in terms of a few succinct rules, while on
Barnsley, Michael F., Sloan, Alan D.
core   +1 more source

Reconfigurable Curved Beams at Terahertz Frequencies Using Inverse‐Designed Bilayer Diffractive Structures

open access: yesAdvanced Photonics Research, Volume 7, Issue 5, May 2026.
An inverse‐designed bilayer diffractive structure enables reconfigurable propagation of two distinct curved beams via 180° rotation of the second layer. Curved electromagnetic beams at terahertz (THz) frequencies have recently emerged as a powerful example of wavefront engineering, with applications in imaging and high‐capacity wireless communications.
Wei Jia   +3 more
wiley   +1 more source

Metasurfaces and Metadevices for Topological Electromagnetic Waves

open access: yesAdvanced Physics Research, Volume 5, Issue 5, May 2026.
Optical topologies refer to diverse topological localized structures made by diverse parameters of light fields, such as vortices, skyrmions, and hopfions. This article navigates a direction of metasurface‐based integrated devices for generation, manipulation and detection of novel topologies of light, which would be a rapidly growing interdisciplinary
Rensheng Xie   +3 more
wiley   +1 more source

Fast Lossless Compression of Multispectral-Image Data [PDF]

open access: yes
An algorithm that effects fast lossless compression of multispectral-image data is based on low-complexity, proven adaptive-filtering algorithms.
Klimesh, Matthew
core   +1 more source

Capturing State‐of‐Charge‐Dependent Efficiency in Battery Energy Storage Systems: A Bernoulli Model Approach

open access: yesBattery Energy, Volume 5, Issue 3, May 2026.
Conventional battery energy storage system models assume constant efficiencies, overlooking key physical limitations. This work introduces an analytical model with realistic state‐of‐charge (SOC)‐dependent efficiencies and charge acceptance, predicting that system operation concentrates in intermediate SOC ranges—a critical, overlooked behaviour ...
Elisa Gebennini   +3 more
wiley   +1 more source

Probability Prediction Network With Checkerboard Prior for Lossless Remote Sensing Image Compression

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Lossless remote sensing image compression aims to reduce the storage size of images without any information loss, ensuring that the decompressed image is identical to the original one.
Xuxiang Feng   +3 more
doaj   +1 more source

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