Results 201 to 210 of about 66,270 (345)

Nanosecond-level time-domain coding metasurface for radar signal generation. [PDF]

open access: yesNat Commun
Qian B   +6 more
europepmc   +1 more source

Carbon Dots: An Emerging Frontier for Green and Sustainable Civil Engineering Materials

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Traditional civil engineering materials (CE materials) are usually involved with high‐energy consumption during manufacturing, significant maintenance costs, and substantial environmental impacts throughout their life cycles. The progress of nanotechnology is catalyzing a green and sustainable transformation within the field.
Weiwen Hao   +5 more
wiley   +1 more source

Machine learning-optimized compact wearable frequency reconfigurable antenna for sub-6 GHz/mm-wave 5G integration. [PDF]

open access: yesSci Rep
Salisu A   +8 more
europepmc   +1 more source

Enhanced Nonlinear Optical Absorption Properties and Carrier Dynamics of Violet Phosphorene by Oxidation for Ultrafast Photonic Applications

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
This study investigates the effects of oxidation treatment on the nonlinear optical absorption properties and carrier dynamics of two‐dimensional violet phosphorene (VP), elucidating the underlying physical mechanisms. Furthermore, ultrashort laser pulses are achieved utilizing the enhanced saturation absorption and shortened carrier relaxation ...
Bo Li   +6 more
wiley   +1 more source

Confinement−Adsorption Synergy in Hybrid Carbon‐Coated Separator Enables Stable High‐Rate Quinone Cathode for Magnesium Batteries

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
A sulfur‐containing heterocyclic quinone cathode for rechargeable magnesium batteries is coupled with a GO/MWCNTs–COOH separator that establishes a confinement–adsorption regulation mechanism, thereby significantly accelerating Mg2+ reaction kinetics and minimizing active‐material loss.
Xiquan Qi   +3 more
wiley   +1 more source

Analysis of Electrical Characteristics due to Deep Level Defects in 4H-SiC PiN Diodes [PDF]

open access: hybrid
Taehee Lee   +7 more
openalex   +1 more source

Determination of X-ray flux using silicon pin diodes [PDF]

open access: hybrid, 2009
Robin L. Owen   +3 more
openalex   +1 more source

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