Results 81 to 90 of about 2,823 (249)

Enhancing hydrogen evolution reaction by harnessing bubble dynamics regulation: Principles, methods, and outlook

open access: yesDroplet, EarlyView.
Bubble dynamics pose critical bottlenecks to hydrogen evolution reaction efficiency, causing active site isolation, increased ohmic resistance, and concentration overpotential, especially at high current densities. This review comprehensively summarizes passive and active bubble manipulation strategies, elucidates their underlying principles, and ...
Ziwei Guo   +10 more
wiley   +1 more source

Overview of the system-level anti-jamming capability and developmental challenges of low-earth-orbit signal-of-opportunity

open access: yesFrontiers in Physics
Signal-of-Opportunity (SOP) navigation based on Low-Earth-Orbit (LEO) satellite constellations has increasingly become a research hotspot. Due to the large number of LEO satellites, wide spectrum coverage, and strong signal power, LEO satellite Signal-of-
Lihao Yao   +17 more
doaj   +1 more source

Transient Charging Dynamics in Stacked Ga2O3/ZnO Photovoltaic Units Governing Wavelength‐Selective Polarity Switching

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
This work reveals a “Photovoltaic‐Capacitance” coupling mechanism in stacked Ga2O3/ZnO devices, defining the ZnO/graphene interface as a novel Photovoltaic Dynamic‐Capacitor (PDC). The wavelength‐selective bipolar response enables a physical layer secure communication protocol based on ternary optical logic (“1,” “0,” “−1”).
Songqi Zhao   +6 more
wiley   +1 more source

A Longitudinal Comparison of the Effects of Election Outcomes on System Legitimacy in the United Kingdom and United States

open access: yesEuropean Journal of Social Psychology, EarlyView.
ABSTRACT Using three‐wave panel data from the United Kingdom (N = 604) and the United States (N = 512), we examined changes in system‐legitimization across the 2024 electoral cycle and whether trajectories differed for electoral winners and losers. In both countries, system‐legitimization increased after the election, suggesting that elections function
Evan A. Valdes   +3 more
wiley   +1 more source

Stereo‐EEG mapping of visual working memory with task‐related high‐gamma modulations

open access: yesEpilepsia, EarlyView.
Abstract Objective We describe a safe, informative, and easy‐to‐implement approach for presurgical mapping of visual working memory (VWM) with stereo‐electroencephalography (SEEG). Methods Twenty‐four patients with drug‐resistant epilepsy, 11–23 years of age, performed a single‐probe change detection VWM task, during SEEG monitoring.
Brian Ervin   +13 more
wiley   +1 more source

Listening across frequencies: Capturing seizures of all patients to advance antiseizure medication development

open access: yesEpilepsia, EarlyView.
Abstract Seizure frequency has been the primary endpoint in epilepsy trials, with enrollment usually requiring ≥4 seizures per month. This threshold is more and more misaligned with clinical reality, as the availability of more treatment options has reduced baseline seizure burden, with a risk of excluding a proportion of patients from trials. Although
Stéphane Auvin, Jacqueline French
wiley   +1 more source

Cascaded multiplier-free implementation of adaptive anti-jamming filter based on GNSS receiver

open access: yesFrontiers in Physics
Evaluating the computational complexity is critical for assessing the time-domain anti-jamming performance of GNSS receivers. The multiplier is the core component that contributes to the computational complexity in time-domain anti-jamming.
Jie Song   +13 more
doaj   +1 more source

Simultaneous Beamforming and Anti -Jamming with Intelligent Omni-Surfaces

open access: yes2025 IEEE Wireless Communications and Networking Conference (WCNC)
Wireless transmission is vulnerable to malicious jamming attacks due to the openness of wireless channels, posing a severe threat to wireless communications. Current anti-jamming studies primarily focus on either enhancing desired signals or mitigating jamming, resulting in limited performance. To address this issue, intelligent omni-surface (IOS) is a
Yuhan Wang 0025   +4 more
openaire   +2 more sources

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