Results 61 to 70 of about 19,897 (263)

Snap‐Through–Driven Liquid Crystal Elastomers for High‐Power Remote Microneedle Actuation Toward Smart Livestock Systems

open access: yesAdvanced Functional Materials, EarlyView.
A magnetically assisted snap‐through liquid crystal elastomer transforms photochemical deformation into a high‐power mechanical impulse, enabling remote microneedle actuation and highlighting its potential for future smart livestock intervention systems.
Chae Won Lee   +3 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

Boosting Conversion Efficiency in Zn3P2/InP Solar Cells Via Nanoscale Junction Engineering

open access: yesAdvanced Functional Materials, EarlyView.
This study demonstrates the efficacy of selective area epitaxy (SAE) in enhancing the conversion efficiency of a Zn3P2${\rm Zn}_3{\rm P}_2$/InP heterojunction solar cell. The impact of the SAE pattern dimensions on the performance parameters is investigated. Small size opening limits Jsc because of current crowding whereas large size opening limits Voc
Raphael Lemerle   +14 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

Confinement‐Engineered Thermally Programmed Ion‐Gating Separator for Decoupling Thermal–Electrochemical Feedback in High‐Energy Lithium‐Ion Batteries

open access: yesAdvanced Functional Materials, EarlyView.
A new phase‐change material encapsulated membrane offers more thermal resilience stability and safety than the conventional separators for batteries. ABSTRACT Thermal runaway in lithium‐ion batteries arises from the intrinsic coupling between heat generation and ion transport, yet conventional shutdown separators primarily rely on passive pore collapse
Sumedha Rajpoot   +17 more
wiley   +1 more source

Chitin‐Derived Carbon‐Metal Functional Materials

open access: yesAdvanced Functional Materials, EarlyView.
Functional carbon materials are synthesized from combination of biopolymer (chitin) and iron precursors. The resultant material exhibits superior surface area and adsorptive properties compared to carbon materials synthesized directly from pure chitin.
Herry Fang   +7 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  

Dual‐Layer Conducting and Redox Polymer Bioanodes for Synergistic Enhancement of Microbial Extracellular Electron Transfer

open access: yesAdvanced Functional Materials, EarlyView.
A hybrid PEDOT/Fc‐LPEI conducting/redox polymer bioanode synergistically improves microbial extracellular electron transfer (EET) in Shewanella oneidensis MR‐1. The dual‐layer interface delivers 18‐fold higher current output and 27‐fold greater charge collected than bare carbon felt, highlighting an effective strategy for high‐performance ...
Shenghan Gu   +4 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

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

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