Results 181 to 190 of about 483,921 (367)

Direct‐Ink‐Writing Printed Stretchable Eutectic Gallium–Indium Antenna for Robust Wireless Communication

open access: yesAdvanced Science, EarlyView.
In summary, a universal EGaIn‐based DIW printing strategy is presented for fabricating wideband stretchable antennas. The printed antenna achieves an operating bandwidth of 3.75–8.21 GHz (fractional bandwidth: 75%), a peak gain of 1.8 dB and a radiation efficiency of 76.6%, surpassing state‐of‐the‐art stretchable antennas. More importantly, the antenna
Xiangyu Guo   +6 more
wiley   +1 more source

Sandwich Miura‐Ori Enabled Large Area, Super Resolution Tactile Skin for Human–Machine Interactions

open access: yesAdvanced Science, EarlyView.
Sandwich Miura‐ori based tactile skin achieves large area sensing and super resolution, due to the interactions between different cells. It can also decouple external loads because of the special deformation mechanism. The curved tactile skin can be installed on robotic arms and achieve straightforward control and interactions, showing its great ...
Qian Xu   +9 more
wiley   +1 more source

Gliese 12 b: A Temperate Earth-sized Planet at 12 pc Ideal for Atmospheric Transmission Spectroscopy

open access: yesThe Astrophysical Journal Letters
Recent discoveries of Earth-sized planets transiting nearby M dwarfs have made it possible to characterize the atmospheres of terrestrial planets via follow-up spectroscopic observations.
Masayuki Kuzuhara   +105 more
doaj   +1 more source

Silicon Carbide Photonic Crystal Photoelectrode

open access: yesAdvanced Science, EarlyView.
A 3C‐SiC photoelectrode with a slanted parabolic pore photonic crystal architecture enhances photogeneration for efficient photoelectrochemical water splitting through the remarkable light‐trapping capabilities of photonic crystal slow‐light modes.
Xiwen Zhang, Sajeev John
wiley   +1 more source

Selective Synthesis of Oligosaccharides by Mechanochemical Hydrolysis of Chitin over a Carbon‐Based Catalyst

open access: yesAngewandte Chemie, Volume 135, Issue 3, January 16, 2023., 2023
An activated carbon catalyst having weak acid sites hydrolyzes chitin to chitin‐oligosaccharides selectively in the presence of mechanical milling. Our system preferentially cleaves large molecules over small oligomers, thus maximizing the selectivity and yield of chitin‐oligosaccharides.
Hirokazu Kobayashi   +4 more
wiley   +2 more sources

Liquid Crystalline Self‐Assembly with Accelerated Kinetics and Higher Structural Orderliness in Centrifugal Acceleration Fields Beyond 7251 Times Gravity of Earth

open access: yesAdvanced Science, EarlyView.
How do chemical and physical processes involving multiple phases develop on compact astrophysical objects such as white dwarf stars? Herein, entropy‐driven self‐assembly of rod‐shaped nanoparticles in centrifugal acceleration fields up to 7251 times the gravity of Earth is investigated, where strong acceleration fields accelerated the kinetics of phase
Lingyan Xu, Hongbo Zhao, Pei‐Xi Wang
wiley   +1 more source

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