Results 41 to 50 of about 88,004 (297)

Modular multilevel converter with DHB energy-balancing channels for medium-voltage adjustable-speed drives

open access: yesThe Journal of Engineering, 2019
This paper presents a modular multilevel converter (MMC) configuration that utilises energy exchange between sub-modules (SMs) of upper and lower arms, for energy rebalancing.
Mohamed S. Diab   +4 more
doaj   +1 more source

SIMULTANEOUS ALLOCATION OF MULTIPLE DISTRIBUTED GENERATION AND CAPACITORS IN RADIAL NETWORK USING GENETIC-SALP SWARM ALGORITHM

open access: yesElectrical engineering & Electromechanics, 2020
Purpose. In recent years, the problem of allocation of distributed generation and capacitors banks has received special attention from many utilities and researchers.
Chabane Djabali, Tarek Bouktir
doaj   +1 more source

Design and Implementation of Single Stage SEPIC Integrated Parallel Ripple Cancellation Method for LED Lighting

open access: yesAdvances in Electrical and Computer Engineering, 2022
LED drivers when operating from a utility source with a diode bridge rectifier poses a higher output ripple which deserves a large capacitance. But, the higher value of capacitors, normally electrolytic, with lesser lifetime reduces the operating time.
MAKKAPATI, S., RAMALINGAM, S.
doaj   +1 more source

Silicon Capacitors Opportunities for Switched Capacitor Converter

open access: yes2022 IEEE 23rd Workshop on Control and Modeling for Power Electronics (COMPEL), 2022
This paper investigates emerging capacitor technologies to address the need of high power density (e.g.greater than 1W/mm²) DC-DC switching converters. Existing modeling of DC-DC step-down switched capacitor converter (SCC) is employed in this work to benchmark different types of capacitors, such as standard MOS capacitor and emerging silicon ...
Perez, Emeric   +3 more
openaire   +2 more sources

Invisible but not inaccessible—Revealing transient oligomers formed by intrinsically disordered proteins with solution NMR and complementary methods

open access: yesFEBS Letters, EarlyView.
Transient oligomers formed by intrinsically disordered proteins may be ‘invisible’ to direct detection yet remain accessible to solution NMR through equilibrium‐exchange measurements and pressure‐jump experiments. Complementary methods report on mass, stoichiometry, selected distance distributions, morphology, and internal packing.
Martin D. Gelenter, Ad Bax
wiley   +1 more source

Reliability study on DC-link capacitor in fault states of VSI in elective vehicle

open access: yesThe Journal of Engineering, 2019
DC-input side of the inverter to balance input and output power, eliminate voltage fluctuation, and reduce the voltage spike in the input side. The reliability study on DC-link capacitor under fault state is critical to the safe operation of the whole ...
Fang Yao   +3 more
doaj   +1 more source

Ageing characteristics and lifetime model of oil–paper insulation for oil‐immersed paper condenser bushing

open access: yesHigh Voltage, 2021
This study extensively investigated the ageing characteristics and lifetime model of oil–paper insulation for oil‐immersed paper condenser bushing. The accelerated thermal and electrothermal ageing experiments of oil‐immersed paper condenser bushing were
Sihang Gao, Lijun Yang, Tingjing Ke
doaj   +1 more source

How structural disorder and polyelectrolyte properties of prothymosin α enable its large interactome

open access: yesFEBS Letters, EarlyView.
In this review, complexes of the fully disordered and highly negatively charged prothymosin α are collected, described, and discussed. Linked to its poly‐electrostatic character, prothymosin α engages a large interactome through multiple different binding modes ranging from fully disordered complexes to short linear motif (SLiM)‐driven interactions ...
Ketty C. Tamburrini   +3 more
wiley   +1 more source

Design and simulation of zipping variable capacitors

open access: yes, 2007
Variable capacitors are essential for building tunable RF systems. We present here the design and simulation of novel zipping variable capacitors with a high permittivity dielectric layer. Two modelling techniques are presented: finite element simulation
Pu, S.H, Yeatman, E.M., Holmes, A.S.
core   +1 more source

Tumour–host interactions in Drosophila: mechanisms in the tumour micro‐ and macroenvironment

open access: yesMolecular Oncology, EarlyView.
This review examines how tumour–host crosstalk takes place at multiple levels of biological organisation, from local cell competition and immune crosstalk to organism‐wide metabolic and physiological collapse. Here, we integrate findings from Drosophila melanogaster studies that reveal conserved mechanisms through which tumours hijack host systems to ...
José Teles‐Reis, Tor Erik Rusten
wiley   +1 more source

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