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Passive and Active Electrical Balance Duplexers [PDF]

open access: yesIEEE Transactions on Circuits and Systems II: Express Briefs, 2016
Electrical balance duplexing enables simultaneous transmit and receive from a single antenna, however the transmit-to-receive isolation depends on the ability of the balancing algorithm to determine the correct balancing impedance.
Beach, Mark A   +4 more
core   +4 more sources

Novel Liquid Transfer Active Balancing System for Hollow Rotors of High-Speed Rotating Machinery

open access: yesApplied Sciences, 2019
With the development of high-speed rotating machinery, the unbalance vibration feature of each rotor system has a greater influence on the work efficiency, bearing life, operational time, etc.
Xin Pan   +5 more
doaj   +3 more sources

Magnetorheological Fluid Utilized for Online Rotor Balancing [PDF]

open access: yesMicromachines
Unbalance in rotating machinery causes significant vibrations, reducing lifespan and efficiency. This study overcomes the limitations of conventional offline balancing by introducing an online rotor balancing system utilizing Magnetorheological Fluid ...
Valentin Schreiner, Jürgen Maas
doaj   +2 more sources

Neutral-Point Voltage Balancing Method for Three-Phase Three-Level Dual-Active-Bridge Converters

open access: yesEnergies, 2022
Three-phase three-level dual-active-bridge (3L-DAB3) converters are a potential topology for high-voltage and high-power applications. Neutral-point voltage balancing is a complex and important issue for three-level (3L) circuits.
Xinmi Wu, Yu Zhang, Jiawen Yang
doaj   +3 more sources

A High Frequency Self-Reconfigurable Battery for Arbitrary Waveform Generation

open access: yesWorld Electric Vehicle Journal, 2021
This article presents an innovative self-reconfigurable battery (SRB) architecture, which is able to generate directly at its output any waveform signals. Thanks to that specific characteristic of the proposed system, it is even possible to dispense with
Rémy Thomas   +6 more
doaj   +1 more source

An Intermodular Active Balancing Topology for Efficient Operation of High Voltage Battery Packs in Li-Ion Based Energy Storage Systems: Switched (Flying) DC/DC Converter

open access: yesEnergies, 2023
To meet the load voltage and power requirements for various specific needs, a typical lithium–ion battery (LIB) pack consists of different parallel and series combinations of individual cells in modules, which can go as high as tens of series and ...
Murat Ceylan, Abdulkadir Balikci
doaj   +1 more source

Reducing Cell to Cell Variation of Lithium-Ion Battery Packs During Operation

open access: yesIEEE Access, 2021
In this work, an experimental approach to reduce the variation from cell to cell during battery operation is evaluated to reach a better battery utilization.
Andreas Ziegler   +4 more
doaj   +1 more source

Aging Determination of Series-Connected Lithium-Ion Cells Independent of Module Design

open access: yesBatteries, 2023
In this work, a battery consisting of eight commercial NMC/graphite cells connected in series was cycled to 60% of its initial capacity. During the test, special care was taken to ensure that the results were not influenced by either the module assembly ...
Thiemo Hein   +4 more
doaj   +1 more source

The RecD2 helicase balances RecA activities [PDF]

open access: yesNucleic Acids Research, 2022
AbstractDNA helicases of the RecD2 family are ubiquitous. Bacillus subtilis RecD2 in association with the single-stranded binding protein SsbA may contribute to replication fork progression, but its detailed action remains unknown. In this work, we explore the role of RecD2 during DNA replication and its interaction with the RecA recombinase.
Cristina Ramos   +7 more
openaire   +3 more sources

A Hybrid Energy Storage System with Reconfigurability and Fast Equalisation

open access: yesPower Electronics and Drives, 2022
With the rapid growth of electric vehicles (EVs) in recent years, the research on their energy storage systems (ESSs) has also shown great popularity.
Jiang Bowen, Liu Yujing
doaj   +1 more source

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