Results 91 to 100 of about 11,033,322 (296)

The system of measurement of symmetrical and asymmetric short circuit current with multi range current transformers in conditions of short-circuit testing laboratory [PDF]

open access: yes, 2019
W artykule przedstawiono różne wymagania zawarte w normach przedmiotowych, dotyczące parametrów probierczych dla aparatury elektroenergetycznej i różnych rodzajów badań wykonywanych w laboratorium zwarciowym.
Olak, Jan, Babiuch, Michał
core   +1 more source

Composites of Shellac and Silver Nanowires as Flexible, Biobased, and Corrosion‐Resistant Transparent Conductive Electrodes

open access: yesAdvanced Functional Materials, EarlyView.
Shellac, a centuries‐old natural resin, is reimagined as a green material for flexible electronics. When combined with silver nanowires, shellac films deliver transparency, conductivity, and stability against humidity. These results position shellac as a sustainable alternative to synthetic polymers for transparent conductors in next‐generation ...
Rahaf Nafez Hussein   +4 more
wiley   +1 more source

Wearable Smart Patches on Sustainable Chitosan With Reversible Microbial Growth‐Inhibitory Properties

open access: yesAdvanced Functional Materials, EarlyView.
ABSTRACT Chitosan, a polysaccharide upcycled from biowaste, has long promised sustainable, biocompatible, and antimicrobial films and devices, an appeal reinforced by its recent regulatory recognition, with several chitosan‐based antibacterial dressings gaining clearance through the Food and Drug Administration's 510(k) pathway.
Jacopo Nicoletti   +16 more
wiley   +1 more source

Arc motion and gas flow in current limiting circuit breakers operating with a low contact switching velocity [PDF]

open access: yes, 2002
Arc motion in low voltage (240 VAC) high current (10/sup 3/-10/sup 4/A.) current limiting-circuit breakers is dominated by arc root mobility. The mobility is influenced by the gas flow and gas composition in the contact region, but there is little ...
Weaver, P.M.   +2 more
core   +1 more source

Optoelectronic Synaptic Devices Using Molecular Telluride Phase‐Change Inks for Three‐Factor Learning

open access: yesAdvanced Functional Materials, EarlyView.
Optoelectronic synaptic devices based on solution‐processed molecular telluride GST‐225 phase‐change inks are demonstrated for three‐factor learning. A global optical signal broadcast through a silicon waveguide induces non‐volatile conductance updates exclusively in locally electrically flagged memristors.
Kevin Portner   +14 more
wiley   +1 more source

Self‐Sintering Ionogel Binder for Flexible, Recyclable, and Healable Printed Giant Magnetoresistive Sensors

open access: yesAdvanced Functional Materials, EarlyView.
ABSTRACT Electronic waste has emerged as a major environmental challenge, driven by the massive consumption and a limited lifetime of modern electronic devices, stimulating the development of sustainable electronics. Here, an all‐biomaterial gelatin‐choline‐citric acid ([Ch][CA]) ionogel is developed as an active binder to realize self‐sintered ...
Lin Guo   +10 more
wiley   +1 more source

Three-Phase Short-Circuit Current Calculation of Power Systems with High Penetration of VSC-Based Renewable Energy

open access: yesEnergies, 2018
Short-circuit current level of power grid will be increased with high penetration of VSC-based renewable energy, and a strong coupling between transient fault process and control strategy will change the fault features. The full current expression of VSC-
Niancheng Zhou   +2 more
doaj   +1 more source

Regulated Ion‐Diffusion Hydrogels for Subtle and Multimodal Temperature‐Strain Sensing in Wound Monitoring

open access: yesAdvanced Functional Materials, EarlyView.
A soft, dual‐channel hydrogel patch enables simultaneous detection of wound temperature and strain by integrating ion‐diffusion‐mediated thermoelectric and resistive sensing. The conformal design maintains stable performance during motion, capturing subtle inflammatory and mechanical changes for continuous wound monitoring.
Yu Fang   +7 more
wiley   +1 more source

Research and Optimization of High-voltage IGBT Module Short CircuitCharacteristics for Traction Application

open access: yes机车电传动, 2014
Three IGBT short circuit types had been introduced. The short circuit type 2 had been enhanced through optimization of theIGBT transistor gain to withstand higher short circuit current.
LIU Guo-you   +5 more
doaj  

Investigation on Stator Winding Inter-turns Short Circuit Fault Diagnosis

open access: yesJournal of Harbin University of Science and Technology, 2018
On the basis of negative sequence current generation mechanism analysis of synchronous generator stator winding inter-turns short circuit,the method of detecting and diagnosing synchronous generator stator winding inter-turns short circuit is proposed ...
ZHAO Hong-sen   +4 more
doaj   +1 more source

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