Results 261 to 270 of about 617,901 (335)

EVALUATING QUALITY OF EXPERIENCE (QoE) AND BROADBAND ADOPTION IN PUBLIC HIGHER EDUCATIONAL INSTITUTIONS: INSIGHTS FOR IMPROVED SERVICE QUALITY AND ACCESS

open access: diamond
Suheil Che Sobry   +5 more
openalex   +2 more sources

Pattern Formation in Non‐Equilibrium Architected Materials

open access: yesAdvanced Materials Technologies, EarlyView.
This article demonstrates an artificial mechanical system ‐ a robotic metamaterial ‐ as an accessible and versatile platform within which to explore and prescribe the reaction‐diffusion driven pattern formation hitherto associated with comparatively less accessible and versatile non‐equilibrium biological and chemical systems.
Vinod Ramakrishnan, Michael J. Frazier
wiley   +1 more source

Development of Laterally Graded X‐Ray Multilayer Optics

open access: yesAdvanced Materials Technologies, EarlyView.
This work presents the development of laterally graded X‐ray multilayer optics with both constant and variable lateral gradients. By precisely controlling substrate speed profiles and mask design, these multilayers achieve highly accurate lateral gradients and excellent sagittal thickness uniformity, making them ideal for spectroscopy application at ...
Arindam Majhi   +11 more
wiley   +1 more source

Broadband Terahertz Holography Using Nonlinear Plasmonic Metasurfaces. [PDF]

open access: yesNano Lett
Hu Z   +4 more
europepmc   +1 more source

Broadband ISDN. Trend of studies broadband ISDN.

open access: yesThe Journal of the Institute of Television Engineers of Japan, 1989
openaire   +2 more sources

Millisecond‐Switching Dual‐Band/Dual‐Polarization Ka‐Band Wavefront Control Enabled by a Complementary Liquid‐Crystal Metasurface

open access: yesAdvanced Materials Technologies, EarlyView.
An LCD‐compatible complementary liquid‐crystal metasurface delivers dual‐band, dual‐polarized Ka‐band wavefront control with millisecond switching via a 10‐µm LC gap. Interlaced patch/slot pairs enable independent phase tuning at 28 and 38 GHz, while strategic 45° slot rotation suppresses parasitic resonances. Measurements on a 160 × 160‐cell prototype
Daehyeon Kim   +4 more
wiley   +1 more source

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