Results 41 to 50 of about 8,292,116 (301)

Parallel association of shunt active power filters [PDF]

open access: yes, 2007
This paper describes different types of parallel association of Shunt Active Power Filters, presents computer simulation models developed in PSCAD/EMTDC, and shows simulated results for each case. The control system used in the active filters is based on
Pregitzer, Ricardo G.   +7 more
core   +1 more source

Analysis Of Active Power Filters Operating With Unbalanced Loads

open access: yesEletrônica de Potência, 2010
The aim of this paper is to perform an analysis of the shunt Active Power Filter (APF) operating with unbalanced loads. The impact of the load imbalance on the APF performance is mathematically demonstrated and validated with experimental results using ...
Leonardo Rodrigues Limongi   +3 more
doaj   +1 more source

New Topology of a Hybrid, Three-Phase, Four-Wire Shunt Active Power Filter

open access: yesEnergies, 2023
With a view to reducing harmonic content in electrical power systems, and, consequently, improving power quality level, filters and other harmonic compensation devices are widely used.
Stefani Freitas   +5 more
doaj   +1 more source

Ligand‐dependent transcriptional heterogeneity in cell cycle gene expression delays G1/S entry

open access: yesFEBS Letters, EarlyView.
EGF and HRG induce distinct G1/S progression programs in ErbB2‐amplified BT474 breast cancer cells. Despite activating the potent ErbB2–ErbB3 heterodimer, HRG does not accelerate cell‐cycle entry. Instead, EGF promotes earlier restriction‐point passage via ERK–FOS signaling, whereas HRG activates the AKT–MYC axis, driving transcriptional heterogeneity ...
Ririn Rahmala Febri   +5 more
wiley   +1 more source

Decentralised Power Active Filters

open access: yesAdvances in Electrical and Electronic Engineering, 2004
This paper deals with a decentralised power active filter control based on the separated computation of reference current for each active filter operating under determinated harmonic frequency.
Marek Roch   +2 more
doaj  

Power quality improvement of sugar factories dc motor drive using hybrid filter [PDF]

open access: yesEgyptian Sugar Journal, 2019
Power quality management is the main problem facing industry today. This problem is mainly due to the generation of electric network harmonics. The growing use of variable speed drives produces a large amount of harmonics in distribution systems because ...
Mohamed Nosier   +2 more
doaj   +1 more source

Application of Decision Trees for Optimal Allocation of Harmonic Filters in Medium-Voltage Networks

open access: yesEnergies, 2021
The paper proposes a solution for the problem of optimizing medium voltage power systems which supply, among others, nonlinear loads. It is focused on decision tree (DT) application for the sizing and allocation of active power filters (APFs), which are ...
Maciej Klimas   +2 more
doaj   +1 more source

Functional comparison of EncB and EncC cargo proteins in iron storage within the Myxococcus xanthus encapsulin

open access: yesFEBS Letters, EarlyView.
Encapsulins are protein nanocompartments that play an important role in iron storage. In the Myxococcus xanthus encapsulin system, two cargo proteins called EncB and EncC contribute to iron mineralization. Here, we show that EncB and EncC generate iron‐containing minerals with distinct chemical compositions, suggesting that the composition of stored ...
Harry B. McDowell   +2 more
wiley   +1 more source

High Order Voltage and Current Harmonic Mitigation Using the Modular Multilevel Converter STATCOM

open access: yesIEEE Access, 2017
Due to the increase of power electronic-based loads, the maintenance of high power quality poses a challenge in modern power systems. To limit the total harmonic distortion in the line voltage and currents at the point of the common coupling (PCC ...
Epameinondas Kontos   +3 more
doaj   +1 more source

Prospecting the protein design landscape

open access: yesFEBS Letters, EarlyView.
This review outlines the current state of various protein design approaches. We discuss the current possibilities enabled by recently released tools, highlight future avenues to pursue in protein design, and underscore the crucial role of key databases and resources for successful protein design workflows.
Jakob R. Riccabona   +4 more
wiley   +1 more source

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