Results 91 to 100 of about 412,357 (331)

Study on the influence of mechanism dispersion on transient recovery voltage distribution of modular DC vacuum circuit breakers

High Voltage
A simulation analysis and an experiment are carried out to investigate how the gap difference between the breaks of a direct current vacuum circuit breakers with multi‐breaks (MB‐DC VCB) caused by the mechanism dispersion of the breaker influences the ...
Chongyang Huang, Yongshuai Yin, Shuxin Liu, Hanwen Du, Zengyu Shan, Yundong Cao, Shurui Yang   +6 more
doaj   +1 more source

An improved equalization technique for fast charging of Electric vehicles

Ain Shams Engineering Journal
This paper describes a lithium-ion battery (LIB) hybrid equalization (HE) structure. There are two primary strategies for voltage equalization (EQ): passive and active. Active equalization (AE) moves energy between the LIBs, whereas passive equalization (
Ahmed Abd El Baset Abd El Halim, Ehab Hassan Eid Bayoumi, Walid El-Khattam, Amr Mohamed Ibrahim   +3 more
doaj   +1 more source

Optimization of the Wire Electric Discharge Machining Process of Nitinol-60 Shape Memory Alloy Using Taguchi-Pareto Design of Experiments, Grey-Wolf Analysis, and Desirability Function Analysis

, 2023
Wasiu Oyediran Adedeji, Mofoluwaso Kehinde Adeniran, Kasali Aderinmoye Adedeji, A. John Rajan, Sunday Ayoola Oke, Elkanah Olaosebikan Oyetunji   +5 more
openalex   +2 more sources

Atomic Size Misfit for Electrocatalytic Small Molecule Activation

Advanced Functional Materials, EarlyView.
This review explores the application and mechanisms of atomic size misfit in catalysis for small molecule activation, focusing on how structural defects and electronic properties can effectively lower the energy barriers of chemical bonds in molecules like H2O, CO2, and N2.
Ping Hong, Changfan Xu, Huaping Zhao, Yong Lei   +3 more
wiley   +1 more source

Common-Mode Voltage Reduction of Modular Multilevel Converter Using Adaptive High-Frequency Injection Method for Medium-Voltage Motor Drives

Energies
This study proposes an adaptive high-frequency injection method (AHFI) aimed at mitigating common-mode voltage (CMV) on the AC side and alleviating current stress on power semiconductor devices within each arm of a medium-voltage motor propulsion system ...
Jae-Woon Lee, Ji-Won Kim, Chee-Woo Lee, Byoung-Gun Park   +3 more
doaj   +1 more source

Enhancing CoFe Catalysts with V2CTX MXene‐Derived Materials for Anion Exchange Membrane Electrolyzers

Advanced Functional Materials, EarlyView.
MXene dervied CoFe composites show increased initial Oxygen Evolution Reaction (OER) activity compared to the pure CoFe and MXene in an Anion Exchange Membrane device. Vanadium vacancies in the MXene plays a role in increased OER activity and hinders Fe leaching in the AEM device over using the pure V2C MXene as a support material for the CoFe ...
Can Kaplan, Karuppasamy Dharmaraj, Thorsten Schultz, Leiqiang Qin, Ningjun Chen, Danielle A. Douglas‐Henry, Bastian Schmiedecke, Merve Buldu‐Akturk, Axel Zuber, Iris Dorbandt, Maximilian Reinhardt, Yael Rodriguez‐Ayllon, Yan Lu, Valeria Nicolosi, Norbert Koch, Johanna Rosen, Michelle P. Browne   +16 more
wiley   +1 more source

Суміщення теплохолодильних машин та електронагрівника в схемі джерела теплохолодопостачання [PDF]

, 2011
Проанализированы разные типы теплохолодильных машин. С использованием экономических и экологических показателей выявлены рациональные варианты совмещения теплохолодильных машин и электронагревателейDifferent types of heat-refrigeration machines are ...
Керн, А. А., Степанов, Д. В., Степанова, Н. Д.   +2 more
core  

Estimating Electric Vehicle Driving Range with Machine Learning

, 2023
David Albuquerque, Artur Ferreira, David Coutinho   +2 more
openalex   +1 more source

Micropatterned Biphasic Printed Electrodes for High‐Fidelity on‐Skin Bioelectronics

Advanced Functional Materials, EarlyView.
Micropatterned biphasic printed electrodes achieve unprecedented skin conformity and low impedance by combining liquid‐metal droplets with microstructured 3D lattices. This scalable approach enables high‐fidelity detection of ECG, EMG, and EEG signals, including alpha rhythms from the forehead, with long‐term comfort and stability.
Manuel Reis Carneiro, Telmo Lopes, André F. Silva, Carmel Majidi, Mahmoud Tavakoli   +4 more
wiley   +1 more source

LIFETIME OF AUXILIARY MACHINES OF AC ELECTRIC TRAINS

Nauka ta progres transportu, 2015
Purpose. In this paper it is necessary to analyze increase the efficiency of auxiliary machinesof AC electric trains, series ER 9M during operating under the real conditions. Methodology.
O. Yu. Baliichuk
doaj   +1 more source