Results 61 to 70 of about 19,778 (262)

Nano‐Scale Characterization of Impurities Segregation in Solid Oxide Electrolysis Cells

open access: yesAdvanced Functional Materials, EarlyView.
Cathodic polarization induces impurity segregation in Ni, forming an amorphous Na─Al─Si─O amorphous phase at grain boundaries. Under ultralow oxygen partial pressure, multiple elements dissolve, migrate, and reoxidize within the metal. A patterned model system provides direct nanoscale evidence, clarifying the mechanism of polarization‐driven impurity ...
Zhongtao Ma   +5 more
wiley   +1 more source

A Numerical Study on the Influence of an Asymmetric Arc on Arc Parameter Distribution in High-Current Vacuum Arcs

open access: yesEnergies
During high-current vacuum arcing, asymmetric arcing with off-center plasma columns may occur due to stochastic discharge initiation and mechanical motion, receiving less research attention than symmetric arcing.
Zaiqin Zhang   +4 more
doaj   +1 more source

Polymer‐Redox Interactions Enhance Ferro/Ferricyanide Thermogalvanic Cells

open access: yesAdvanced Functional Materials, EarlyView.
Polyelectrolyte could modify the hydration structure of the redox couple in solution and improve the output performance of thermogalvanic cells, providing new fundamental insight into how electrostatic interactions can be exploited to tailor thermoelectric properties.
Pedro Santos Candiotto de Oliveira   +6 more
wiley   +1 more source

Effect of Potential Distribution of Main Shield on Internal Insulation Performance of Vacuum Interrupter

open access: yesShanghai Jiaotong Daxue xuebao
As an environmentally friendly switchgear technology, vacuum circuit breakers have a wide range of application prospects. However, both single and break vacuum circuit breakers face the issues of uneven potential distribution in the main shielding case ...
CHENG Xian, LI Guanjun, GE Guowei, DU Shuai, ZHANG Wanlong
doaj   +1 more source

Fructose‐Based Single‐Chain Polymer Nanoparticles for GLUT1–Mediated Delivery: Impact of Polymer Design on Uptake and In Vivo Performance

open access: yesAdvanced Healthcare Materials, EarlyView.
Single‐chain nanoparticles have been proposed as drug delivery carriers, but adding a tail can significantly enhance their performance. This was demonstrated using a tadpole‐like structure comprising a head prepared from a UV‐crosslinked fructose‐based glycopolymer capable of targeting GLUT receptors, combined with a PEG‐based tail. Compared with other
Hoang Yen Vo   +6 more
wiley   +1 more source

A Review of Research Progress on Environment-Friendly High-Voltage Power Switchgear

open access: yes工程科学与技术, 2023
Sulfur hexafluoride (SF6) is a potent greenhouse gas with a global warming potential index (GWP) of 23 900 times that of carbon dioxide and an atmospheric lifespan of 3 200 years. It is widely used in high-voltage switchgear.
Xiaolong HUANG   +4 more
doaj  

Plasmonic Enhancement of Fluorescence and Protein Dynamics in Living Mammalian Cells

open access: yesAdvanced Materials, EarlyView.
This study demonstrates plasmonic enhancement of the function of fluorescent voltage sensing proteins (genetically encoded voltage indicators, (GEVIs), QuasAr6) in live mammalian cells. Coupling to plasmonic nanoparticles does not just increase fluorescence, but influences the protein photocycle, creating a hybrid sensor with its response speed to ...
Marco Locarno   +16 more
wiley   +1 more source

Reignition After Interruption of Intermediate-Frequency Vacuum Arc in Aircraft Power System

open access: yesIEEE Access, 2018
Intermediate frequency (IF) electric power supply system has been widely applied in airplanes. Reignition after interruption of 360-850 Hz vacuum arc in axial magnetic field (AMF) is studied in this paper.
Jiang Yuan, Wu Jianwen, Jia Bowen
doaj   +1 more source

Ferroelectric Quantum Dots for Retinomorphic In‐Sensor Computing

open access: yesAdvanced Materials, EarlyView.
This work has provided a protocol for fabricating retinomorphic phototransistors by integrating ferroelectric ligands with quantum dots. The resulting device combines ferroelectricity, optical responsiveness, and low‐power operation to enable adaptive signal amplification and high recognition accuracy under low‐light conditions, while supporting ...
Tingyu Long   +26 more
wiley   +1 more source

Research on modeling and simulation of arc characteristics with very large length–diameter ratio

open access: yesAIP Advances
The vacuum circuit breaker has become a research hotspot in the field of high voltage electrical appliances because of its advantages of no pollution and long life. At the moment of arc breaking, the distribution of current density is not uniform.
Lihua Zhao   +6 more
doaj   +1 more source

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