Results 41 to 50 of about 916,905 (189)

The First Electrochemical Cycle: State‐of‐Charge Dependent Formation and Evolution of the Solid Electrolyte Interphase on Hard Carbon Anodes in Sodium‐Ion Batteries

open access: yesSmall Methods, Volume 10, Issue 18, 23 September 2026.
The formation and evolution of the solid electrolyte interphase on hard carbon electrodes is tracked at defined states of charge during the first galvanostatic cycle in sodium half‐cells. Combining SEM/EDS, XPS, ToF‐SIMS, SECM, and c‐AFM reveals how the SEI's morphology, chemistry, and interfacial reactivity develop during sodiation and partially ...
David Schäfer   +4 more
wiley   +1 more source

Novel Design Method in Wireless Charger for SS Topology with Current/Voltage Self-Limitation Function

open access: yesApplied Sciences, 2023
This study proposes a novel wireless power transfer (WPT) resonance compensation design method based on the SS topology with a self-limitation function that achieves fault tolerance without additional components when the secondary circuit is in a short ...
Seungjin Jo, Chang-Su Shin, Dong-Hee Kim
doaj   +1 more source

A Multimodal Magnetically Driven Soft Robot With Integrated Actuation‐Sensing Based on Photothermal Reprogramming Technology

open access: yesAdvanced Science, Volume 13, Issue 46, 17 August 2026.
This work reports a thermally safe, photothermally reprogrammable magnetic soft robot with its reprogramming temperature tuned to ∼39.5°C for biocompatibility. It achieves multimodal locomotion (max speed of 1.8 BL/s) and integrates liquid‐metal capacitive sensing to monitor self‐motion and detect environmental changes in simulated gastric environments,
Liu Yang   +5 more
wiley   +1 more source

SiC MOSFET turn-off overvoltage measurement

open access: yes
International audienceSelecting the appropriate measurement system is crucial in power electronics. This is especially important during MOSFET's turn-off process, where it is essential to measure the voltage rise and accurately capture the peak ...
Galdeano, Mikel   +3 more
core   +2 more sources

An edge AI‐powered power converter hardware platform for practical end‐to‐end AI‐to‐converter closed‐loop deployment

open access: yesEnergy Conversion and Economics, Volume 7, Issue 4, Page 260-278, August 2026.
Abstract Modern power systems require increasingly flexible and responsive power conversion, driving the need for power converters with enhanced controllability and adaptability, where artificial intelligence (AI) plays a key role in enabling intelligent decision making, adaptive control and system level optimization.
Pingyang Sun   +5 more
wiley   +1 more source

Protection against lightning and overvoltage

open access: yes, 2005
Tato bakalářská práce se zabývá ochranou technických prostředků pro ochranu majetku před bleskem a přepětím. V práci jsou uvedeny legislativní podmínky pro použití přepěťových ochran.
Horák, Martin
core   +2 more sources

Energy efficient production and transformation based on geo assets

open access: yesИзвестия Томского политехнического университета: Инжиниринг георесурсов, 2019
The relevance of the study. Electrical energy is one of the most important resources on the planet, which is used everywhere and lets other industries work.
Aleksey Nykonets   +2 more
doaj   +2 more sources

Diagnosis of Chaotic Ferroresonance Phenomena Using Deep Learning

open access: yesIEEE Access, 2023
Ferroresonance is a non-linear and dangerous resonance phenomenon that can affect power networks and damage electrical equipment. The ferroresonance phenomenon is examined by dividing it into classes, with chaotic ferroresonance being the most dangerous ...
H. Selcuk Nogay   +3 more
doaj   +1 more source

On the use of the frequency domain in assessing resonant overvoltages during transformer energization.

open access: yesElectric Power Systems Research, 2021
Abstract Resonant temporary overvoltages during transformer energization may result in damage to the transformer itself or surrounding equipment. These overvoltages are caused by the interplay between the transformer energization currents and the grid impedance.
Leterme, Willem   +2 more
openaire   +1 more source

A Novel Digital Twin Platform for Accelerating Power Systems Restoration

open access: yesEnergy Internet, Volume 3, Issue 2, Page 111-141, July 2026.
Hardware Architecture Design of DT System in Laboratory. ABSTRACT With the global energy structure transforming towards the goal of net zero emissions, the penetration of an inverter‐based resource (IBR) in power systems is increasing. This transformation poses two critical challenges: the system post blackout restoration process becomes extremely ...
Yiliang Fan   +8 more
wiley   +1 more source

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