Results 101 to 110 of about 21,893 (304)
Electrical engineering & ElectromechanicsIntroduction. The Modular Multilevel Converter (MMC) is an advanced topology widely used in medium and high-power applications, offering significant advantages over other multilevel converters, including high efficiency and superior output waveform ...
M. Benboukous +4 more
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Heliyon, 2019 Carrier-based sinusoidal pulse-width modulation (PWM) techniques, such as phase disposoed PWM(PD-PWM) and phase shifted PWM (PS-PWM), are widely applied to control the modular multilevel cascaded converters (MMCC) having full H-bridge as sub-modules ...
O.J.K. Oghorada +3 more
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Advanced Functional Materials, EarlyView.Covalent organic frameworks (COFs) with metals have been recognized as versatile platforms for photocatalytic CO2 reduction (CO2PRR). Herein, an overview of metal integration strategies for COFs is systematically summarized. Regulatory mechanisms and structure–activity relationships between metal integration and COF‐based CO2PRR are emphasized.
Jie He +5 more
wiley +1 more source
Automatic balancing device Patent [PDF]
, 1970 Automatic balancing device for use on frictionless supported attitude-controlled test ...
Hatcher, N. M., Young, R. N.
core +1 more source
From Food to Power: Hydrogel Thermoelectrics for Ingestible Electronics
Advanced Functional Materials, EarlyView.We introduce a fully edible thermoelectric–electrochromic platform that harvests heat from food and converts it into a visible color change. N‐type and p‐type hydrogel thermoelectric generators connected in series power anthocyanin‐based electrochromic displays, demonstrating the feasibility of safe, biodegradable, ingestible systems for on‐food ...
Antonia Georgopoulou +3 more
wiley +1 more source
FCS-MPC for four-switch three-phase AC-DC converters with DC-link capacitor voltage balancing
Journal of Measurement Science and Instrumentation, 2019 Due to the decrease in the number of switches for the four-switch three-phase alternating current-direct current（FSTP AC-DC） converter, it can easily lead to DC-link capacitor voltage imbalance and the system stability reduction.
MA Wei-jie, ZHANG Bao-ge
doaj
Deciphering Small Molecule Diffusion Parameters Across Light Responsive Polymersome Membranes
Advanced Functional Materials, EarlyView.Light‐responsive polymersomes bearing donor–acceptor Stenhouse adducts (DASAs) enable programmable control over small‐molecule transport across synthetic membranes. By systematically varying DASA density, an optimal functionalization regime is identified that maximizes light‐gated permeability.
Farzina Matubbar +7 more
wiley +1 more source
Improved voltage balancing scheme for the MLI based DSTATCOM with Sliding Mode Controller
Journal of Applied Science and EngineeringIn this article is used to demonstrate of sliding mode controller (SMC) for a multilevel inverter based distributed static compensator (DSTATCOM)for compensation of current harmonics related power quality issues and dc side capacitor voltage balancing of
Kalagotla Chenchireddy, V Jegathesan
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Hybrid HVDC for supply of power to offshore oil platforms [PDF]
, 2004 A HVDC hybrid system, comprising a line commutated thyristor HVDC converter and a STATCOM, is proposed in this paper for supplying power to offshore oil platforms that do not have their own generation. The proposed system combines the robust performance,
Andersen, B., Cartwright, P., Xu, L.
core
Advanced Functional Materials, EarlyView.A polyelectrolyte complex‐based sorbent is produced by scalable, environmentally benign aqueous phase inversion. Its porous, LiCl‐ and GO‐integrated architecture enables hourly adsorption−desorption cycles at low relative humidity (RH < 30%). A large‐scale prototype achieves multicyclic, solar‐driven atmospheric water harvesting of 1.37 L kg−1 day−1 ...
Seung‐Hwan Oh +3 more
wiley +1 more source