Results 101 to 110 of about 359,409 (274)

Analysis and suppression of common-mode resonance in chopper circuit of high-frequency auxiliary converter

open access: yes机车电传动
This paper analyzes common-mode resonance in high-frequency auxiliary converters and explores a suppression approach by introducing an efficient common-mode equivalent modeling method.
WANG Tao   +5 more
doaj  

Application of Quasi Proportional Resonance Control Algorithm in Three-phase Inverter Power

open access: yes机车电传动, 2020
Nonlinear loads introduce harmonics into the three-phase inverter power system, which damages the electrical equipment. In order to reduce the harmonic content of the inverter output voltage, a harmonic suppression method based on the quasi-proportional ...
Weiwei GAN   +5 more
doaj  

Engineering nonlinear response of nanomaterials using Fano resonances

open access: yes, 2014
We show that, nonlinear optical processes of nanoparticles can be controlled by the presence of interactions with a molecule or a quantum dot. By choosing the appropriate level spacing for the quantum emitter, one can either suppress or enhance the ...
Akguc, Gursoy B.   +3 more
core   +1 more source

Enhancing Low‐Temperature Performance of Sodium‐Ion Batteries via Anion‐Solvent Interactions

open access: yesAdvanced Functional Materials, EarlyView.
DOL is introduced into electrolytes as a co‐solvent, increasing slat solubility, ion conductivity, and the de‐solvent process, and forming an anion‐rich solvent shell due to its high interaction with anion. With the above virtues, the batteries using this electrolyte exhibit excellent cycling stability at low temperatures. Abstract Sodium‐ion batteries
Cheng Zheng   +7 more
wiley   +1 more source

Synchronization and resonance in a driven system of coupled oscillators

open access: yes, 1999
We study the noise effects in a driven system of globally coupled oscillators, with particular attention to the interplay between driving and noise. The self-consistency equation for the order parameter, which measures the collective synchronization of ...
A. Arenas   +55 more
core   +2 more sources

Photoactivation of NV Centers in Diamond via Continuous Wave Laser Illumination of Shallow As‐Implanted Nitrogen

open access: yesAdvanced Functional Materials, EarlyView.
This study demonstrates an alternative method of creating charge‐stable negatively charged nitrogen vacancy (NV−) centers close to the diamond surface without high‐temperature annealing. By illuminating nitrogen‐implanted regions with a continuous‐wave 405 nm laser, NV− centers are induced, exhibiting electron spin coherence properties suitable for ...
Jens Fuhrmann   +4 more
wiley   +1 more source

Structure-Borne Sound Suppression of a Strongly/Weakly Excited Curved Panel Using a Quadratic Nonlinear Resonance Effect

open access: yesAxioms
This study aimed to investigate the structure-borne sound suppression of a strongly/weakly excited curved panel. Quadratic nonlinear resonance can induce anti-symmetric modal responses to replace symmetric modal responses, even though the physical panel ...
Yiu-Yin Lee
doaj   +1 more source

Torsional resonance suppression via the classical control method [PDF]

open access: yesSongklanakarin Journal of Science and Technology (SJST), 2004
This article presents torsional resonance suppression of a mechanical coupling system via the classical control approach. Three different methods are considered namely root locus method of PIDA compensator, pole placement method with two parameter ...
Chantaramas, R., Sujitjorn, S.
doaj  

Copper‐based Materials for Photo and Electrocatalytic Process: Advancing Renewable Energy and Environmental Applications

open access: yesAdvanced Functional Materials, EarlyView.
Cu‐based catalysts as a cornerstone in advancing sustainable energy technologies are fully reviewed in this manuscript, highlighting their potential in photo‐ and electrocatalysis. It includes metallic copper, copper oxides, copper sulfides, copper halide perovskites, copper‐based metal–organic frameworks (MOFs), and covalent organic frameworks (COFs),
Jéssica C. de Almeida   +16 more
wiley   +1 more source

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