Results 41 to 50 of about 146,883 (325)

Nonlinear Dynamics of Capacitive Charging and Desalination by Porous Electrodes

open access: yes, 2009
The rapid and efficient exchange of ions between porous electrodes and aqueous solutions is important in many applications, such as electrical energy storage by super-capacitors, water desalination and purification by capacitive deionization (or ...
A. Frumkin   +8 more
core   +2 more sources

Direct control strategy for a four-level three-phase flying-capacitor inverter [PDF]

open access: yes, 2010
A direct predictive control strategy is proposed for a three-phase four-level flying-capacitor (FC) inverter in this paper. The balancing of the FC voltages, a challenge in applications with small capacitors and low switching frequencies, is done without
Defaÿ, François   +2 more
core   +1 more source

Spatiotemporal and quantitative analyses of phosphoinositides – fluorescent probe—and mass spectrometry‐based approaches

open access: yesFEBS Letters, EarlyView.
Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho   +3 more
wiley   +1 more source

A High-Power-Density Single-Phase Rectifier Based on Three-Level Neutral-Point Clamped Circuits

open access: yesEnergies, 2017
A single-phase three-level converter is suitable for medium-power applications, with an interface voltage that is higher than that of a traditional two-level configuration. The three-level neutral-point clamped converter is adopted using four switches in
Tao Zhou   +5 more
doaj   +1 more source

A Novel SVPWM Algorithm Considering Neutral-Point Potential Balancing for Three-Level NPC Inverter [PDF]

open access: yesElectronics, 2016
For three-level inverter, complexity of control strategy and neutral-point potential imbalance problem of DC side is the bottleneck restricting its application.
Chen Yongchao, Li Yanda, Zhao Ling
doaj   +1 more source

An advanced modulation scheme emphasising neutral point ripple suppression using predictive control for three-level NPC converters in aircraft electric starter generator applications [PDF]

open access: yes, 2018
Electrical starter/generator (ESG) system is one of the key innovations of more-electric aircraft initiative. The ESG cranks the engine and accelerates it up to self-sustained speed using electric energy (starter mode) and then runs as a generator to ...
Bozhko, Serhiy   +5 more
core  

Optimal Phase Swapping in Low Voltage Distribution Networks Based on Smart Meter Data and Optimization Heuristics [PDF]

open access: yes, 2017
In this paper a modified version of the Harmony Search algorithm is proposed as a novel tool for phase swapping in Low Voltage Distribution Networks where the objective is to determine to which phase each load should be connected in order to reduce the ...
Bordagaray, Ana González   +5 more
core   +2 more sources

Mechanisms of parasite‐mediated disruption of brain vessels

open access: yesFEBS Letters, EarlyView.
Parasites can affect the blood vessels of the brain, often causing serious neurological problems. This review explains how different parasites interact with and disrupt these vessels, what this means for brain health, and why these processes matter. Understanding these mechanisms may help us develop better ways to prevent or treat brain infections in ...
Leonor Loira   +3 more
wiley   +1 more source

An Advanced Three-Level Active Neutral-Point-Clamped Converter With Improved Fault-Tolerant Capabilities [PDF]

open access: yes, 2017
A resilient fault-tolerant silicon carbide (SiC) three-level power converter topology is introduced based on the traditional active neutral-point-clamped converter.
He, Jiangbiao   +2 more
core   +1 more source

Slowing and cooling molecules and neutral atoms by time-varying electric field gradients [PDF]

open access: yes, 1999
A method of slowing, accelerating, cooling, and bunching molecules and neutral atoms using time-varying electric field gradients is demonstrated with cesium atoms in a fountain. The effects are measured and found to be in agreement with calculation. Time-
A. Cable   +62 more
core   +2 more sources

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