Results 31 to 40 of about 2,108,671 (167)

Achievement of Transition Metal Chalcogenides/Oxides in Hydrogen Production by Seawater Electrolysis

open access: yesEcoEnergy, EarlyView.
Transition metal chalcogenides (TMCs)/oxides have shown great application potential in seawater splitting for hydrogen generation due to their adjustable electronic properties, abundant active sites, and excellent catalytic performance. ABSTRACT Under the impetus of global “dual carbon” goals, green hydrogen has become a key component of the future ...
Xiaohui Du, Xinyu Li, Jianna Li, Tao Sun
wiley   +1 more source

Laser‐Textured Field‐Engineered Interface for Robust Dry‐Processed Cathodes in Lithium‐Ion Batteries

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Laser‐patterned dry electrodes applied to current collectors could serve as a promising alternative to the limitations of conventional dry electrodes. Laser technology provides a fast and simple method to enhance the surface roughness of current collectors, improving the adhesion at the electrode–current collector interface.
Chaerin Jung   +8 more
wiley   +1 more source

Converter Overvoltage Protection for DC-Grids

open access: yes, 2023
436442Overvoltage protection for commercial and household installations with AC is well known and the market provides a multitude of suitable devices.
Wunder, Bernd   +7 more
core   +1 more source

DEVELOPMENT OF AUTOMATION OF PROTECTION OF THE HOME ELECTRICITY OF POWER-PLANTS [PDF]

open access: yesBiomedicinskaâ Inženeriâ i Èlektronika, 2017
The main types and classification of safety fuses are considered. The advantages of a grid protection network against overload are highlighted. The methodology and the scheme of the home network protection automaton from overload are presented.
Novikova L.V.   +2 more
doaj   +1 more source

Development of a Smart Supercapacitor Energy Storage System for Aircraft Electric Power Systems

open access: yesEnergies, 2021
This paper presents the development of a supercapacitor energy storage system (ESS) aimed to minimize weight, which is very important for aerospace applications, whilst integrating smart functionalities like voltage monitoring, equalization, and ...
Ahmed M. Fares   +4 more
doaj   +1 more source

Simultaneous Electrochemical and Inductively Coupled Plasma Optical Emission Spectroscopy Measurements on AA 7075

open access: yesMaterials and Corrosion, EarlyView.
Schematic representation of the operando ICP‐OES setup during the electrochemical experiment (left). Resulting plot showing the dissolution of the individual alloy components of AA7075 as a function of applied potential in 10 mM NaCl (right). ABSTRACT This publication deals with the simultaneous acquisition of electrochemical and inductively coupled ...
Claudia Kutzer‐Schulze   +2 more
wiley   +1 more source

A novel lightning protection technique of wind turbine components

open access: yesThe Journal of Engineering, 2015
The lightning energy can be very harmful to wind turbine (WT) farm components; therefore an effective lightning protection technique is required. In this study, a novel technique for WT components protection is presented.
M.A. Abd-Allah, A. Said, Mahmoud N. Ali
doaj   +1 more source

Modeling and Experimental Analysis of Overvoltage and Inrush Current Characteristics of the Electric Rail Traction Power Supply System

open access: yesEnergies, 2022
High-speed EMUs (electric multiple-units) frequently pass through the phase-separation zone during operation. Overvoltage generated during the operation of the vehicle-mounted circuit breaker has a long duration and high waveform steepness, which ...
Jixing Sun   +5 more
doaj   +1 more source

Arc Resistance Enhancement of Converter Transformer Tank Through Structural Improvements: Simulation and Experimental Validation

open access: yesHigh Voltage, EarlyView.
ABSTRACT Currently, limited research exists on the structural response and protection methods of the converter transformer tank for ± 800 kV ultra‐high voltage direct current transmission project to high energy arc faults. This research investigates the dynamic response and the vulnerable areas of the ultra‐high voltage converter transformer under the ...
Ke Wang   +5 more
wiley   +1 more source

Rare Lightning and Convection Characteristics During Two Successive Tornadoes in Southern China

open access: yesHigh Voltage, EarlyView.
ABSTRACT Systematic investigations into lightning characteristics of tornado storms in China remain scarce. This study comprehensively analyses rare lightning behaviour and overshooting top characteristics for two successive tornadoes during a long‐lived supercell in southern China on 27 April 2024.
Fengquan Li   +9 more
wiley   +1 more source

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