Results 151 to 160 of about 314,945 (334)

Emerging p‐Block Metal‐Based Electrocatalysts for Energy Conversion

open access: yesSmall, EarlyView.
P‐block metal‐based catalysts have emerged as efficient and sustainable alternatives to precious metal electrocatalysts for energy conversion. This review comprehensively surveys diverse p‐block metal‐based architectures—including anisotropic and homogeneous systems—and systematically elucidates their roles in key electrocatalytic reactions, such as ...
Jack Jon Hinsch   +12 more
wiley   +1 more source

Gallium Nitride‐Based Electrode Materials for Supercapacitors: From Wide Band Semiconductor to Energy Storage Platform

open access: yesSmall, EarlyView.
This review focuses on capability of Gallium Nitride (GaN)‐based supercapacitors, bordering the advancement from porous architecture to novel hybrid nanostructures. It systematically investigates synthesis approaches and charge storage mechanisms that generate remarkable energy densities and competent cyclic stability.
Farasat Haider   +7 more
wiley   +1 more source

Conductive Hydrogel‐Enabled Electrode for Scalp Electroencephalography Monitoring

open access: yesSmall Methods, EarlyView.
Conductive hydrogels are emerging as effective EEG electrode‐scalp interfaces to overcome hair barriers. This review presents the demanding parameters for hair‐compatible hydrogel electrodes and summarizes their applications in healthcare and brain‐computer interfaces.
Zichong Ji   +14 more
wiley   +1 more source

Synthesis of gallium nitride nano-particles by ammonia nitridation of mixed β-gallium oxide and gallium nitride powders

open access: yesJournal of the Ceramic Society of Japan, 2020
Hajime KIYONO   +4 more
openaire   +2 more sources

Advances in cholesterol and lipoproteins detection for healthcare: A review

open access: yesVIEW, EarlyView.
Cholesterol is one of the main biomarkers related to the development of cardiovascular diseases. Its detection still relies on traditional methods of analysis, such as gas and liquid chromatographies. Detection of free cholesterol in saliva with redox or enzymatic sensors or detection of lipoproteins in blood with aptamer sensors are currently the most
Jacopo Giaretta   +7 more
wiley   +1 more source

Time to Breakdown for Type I Motor Winding Insulation Under High‐Frequency High‐Slew‐Rate Square Wave Voltages

open access: yesHigh Voltage, EarlyView.
ABSTRACT The emergence of (ultra)wide bandgap ((U)WBG)‐based devices has significantly enhanced performance in high‐frequency switching applications, enabling breakthroughs in electric transportation, aerospace, and renewable energy systems. However, it also presents considerable challenges to insulation systems, such as electric motor winding ...
Easir Arafat   +3 more
wiley   +1 more source

Absolute scaling of small‐ and wide‐angle X‐ray scattering images recorded with short duration X‐ray pulses on a large area fiber‐taper X‐ray detector

open access: yesJournal of Synchrotron Radiation, EarlyView.
An X‐ray scattering setup designed to capture small‐ and wide‐angle X‐ray scattering on a single, large area detector features a partially transmissive beamstop that facilitates non‐invasive recording of X‐ray beam position and intensity during acquisition of X‐ray scattering images.
Hyun Sun Cho   +3 more
wiley   +1 more source

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