Results 41 to 50 of about 183,779 (306)

Adaptive virtual admittance control of bidirectional DC/DC converters for DC bus voltage ripple suppression in DC microgrids

open access: yesInternational Journal of Electrical Power & Energy Systems
DC microgrids have the risk of wideband DC bus voltage ripples. The ripple frequency may vary with system operating conditions, increasing the difficulty in voltage ripple suppression.
Yan Wu, Wei Wang, Fen Tang, Xuezhi Wu
doaj   +1 more source

Analysis and Minimization of Output Current Ripple for Discontinuous Pulse-Width Modulation Techniques in Three-Phase Inverters

open access: yesEnergies, 2016
This paper gives the complete analysis of the output current ripple in three-phase voltage source inverters considering the different discontinuous pulse-width modulation (DPWM) strategies.
Gabriele Grandi   +2 more
doaj   +1 more source

Design and Analysis of LT Codes with Decreasing Ripple Size

open access: yes, 2012
In this paper we propose a new design of LT codes, which decreases the amount of necessary overhead in comparison to existing designs. The design focuses on a parameter of the LT decoding process called the ripple size.
Popovski, Petar   +2 more
core   +2 more sources

A back to back multilevel converter for driving low inductance brushless AC machines [PDF]

open access: yes, 2007
Traditionally, multilevel converters are utilised in medium voltage applications, allowing the DC-link voltage to exceed the switch maximum blocking voltage.
Bingham, Chris   +3 more
core   +1 more source

Epigenetic blind spots – the role of DNA methylation dynamics in stem cell‐based models of embryogenesis

open access: yesFEBS Letters, EarlyView.
Embryo‐like structures (stembryos) are an innovative tool, but they are hindered by experimental variability and limited developmental potential. DNA methylation is crucial for mammalian development, but its status in stembryo models is poorly characterized.
Sara Canil   +4 more
wiley   +1 more source

Frequency Extraction of Current Signal Spectral Components:A New Tool for the Detection of Rotor Electrical Faults in Induction Motors [PDF]

open access: yes, 2019
This work expands the classical current signature analysis in induction machines in a two-stage spectral decomposition manner. The proposed methodology can be summarized in two main steps: initially, the current signals are analyzed using a time ...
Arvanitakis, I   +3 more
core   +1 more source

Impact of Current Ripple on Li-ion Battery Ageing [PDF]

open access: yesWorld Electric Vehicle Journal, 2013
The aim of this paper is to investigate the impact of the current ripple, originating from the dc-dc converter of e.g. a PHEV powertrain, on the ageing of Li-ion batteries. Most research concerning batteries focuses on very low (μHz) to low (Hz) frequencies and low current ripples to create very accurate battery models which can determine e.g.
Sven De Breucker   +3 more
openaire   +1 more source

TRAIL‐PEG‐Apt‐PLGA nanosystem as an aptamer‐targeted drug delivery system potential for triple‐negative breast cancer therapy using in vivo mouse model

open access: yesMolecular Oncology, EarlyView.
Aptamers are used both therapeutically and as targeting agents in cancer treatment. We developed an aptamer‐targeted PLGA–TRAIL nanosystem that exhibited superior therapeutic efficacy in NOD/SCID breast cancer models. This nanosystem represents a novel biotechnological drug candidate for suppressing resistance development in breast cancer.
Gulen Melike Demirbolat   +8 more
wiley   +1 more source

Stacked Buck Converter: Current Ripple Elimination Effect and Transient Response

open access: yesEnergies, 2020
To balance the cost and volume when applying a low output current ripple, the power supply design should be able to eliminate the current ripple under any duty cycle in medium and high switching frequencies, and considerably reduce filter volume to ...
Chien-Chun Huang   +4 more
doaj   +1 more source

A torque ripple reduction method using field current injection for doubly salient motor

open access: yesEnergy Reports, 2022
Doubly salient motor (DSM) is widely used owing to attractively in high-speed operation capability. However, there is a shortcoming of torque ripple for the non-sinusoidal nonlinear structure, for the purpose of solving this problem, this paper presents ...
Dailian Liao, Li Yu, Zhitian Liu
doaj   +1 more source

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