Results 81 to 90 of about 816,421 (295)

Optimal control of torque ripple for direct torque control system of mine hoist

open access: yesGong-kuang zidonghua, 2014
In view of problem of large torque ripple existed in low speed range of direct torque control system of mine hoist, an optimal control method of torque ripple for mine hoist was proposed.
WANG Zhen, CHEN Zhaolei, CAO Xiaodong
doaj   +1 more source

Development of a DC-Side Direct Current Controlled Active Ripple Filter for Eliminating the Double-Line-Frequency Current Ripple in a Single-Phase DC/AC Conversion System

open access: yesEnergies, 2020
The objective of this paper is to propose an active ripple filter (ARF) using the patented DC-side direct current control for eliminating the double-line-frequency current ripple in a single-phase DC/AC conversion system. The proposed ARF and its control
Ying-Chieh Chen   +4 more
doaj   +1 more source

Unraveling 4‐Phenylbutyrate's Therapeutic Role in SLC6A1 Disorders: Pharmacochaperoning Over HDAC Inhibition

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Variants in SLC6A1, encoding the GABA transporter 1 (GAT‐1), cause epilepsy, autism spectrum disorder, and developmental delay via loss of GABA uptake, impaired trafficking, and ER retention. We previously found that 4‐Phenylbutyrate (PBA), an FDA‐approved drug, restores GABA uptake and reduces seizures in SLC6A1‐related disorders ...
Melissa B. DeLeeuw   +5 more
wiley   +1 more source

Carrier-Based PWM Strategy of Three-Level Neutral-Point-Clamped Inverter With Optimal Extension Mode

open access: yesIEEE Open Journal of Power Electronics
Neutral point voltage ripple is the main technical drawback of the three-level neutral-point-clamped (3L-NPC) inverters. Conventional hybrid PWM strategies, which combine zero sequence voltage injection PWM (ZVI-PWM) with double modulation wave PWM (DMW ...
Guozheng Zhang   +4 more
doaj   +1 more source

Evaluation of DC voltage ripple in single-phase H-bridge PWM inverters

open access: yes, 2016
In this paper the complete analysis of the dc-link voltage ripple is given for single-phase H-bridge PWM inverters. The dc voltage ripple amplitude is analytically determined as a function of the modulation index and the load phase angle, considering ...
M. Vujacic   +7 more
core   +1 more source

White Matter Microstructural Abnormalities in Neonatal Onset Genetic Epilepsy

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Recent evidence indicates that epilepsy is associated with abnormal white matter. If seizures alter white matter, then the impact upon network function, epileptogenesis, and cognition could be pronounced in neonates undergoing rapid developmental myelination. Neonates with epilepsy due to nonstructural genetic causes provide a unique
Amanda G. Sandoval Karamian   +8 more
wiley   +1 more source

Broad Ripple Avenue

open access: yes, 1940
Broad Ripple has always been self-sustaining with schools, grocery and drugstores, banks, restaurants, and other shops. In the 1950s several stores, including Kroger, the William H. Block Company and L.

core  

Power Integrity with Voltage Ripple Spectrum Decomposition for Physics-Based Design

open access: yes, 2016
A decomposition method for the PCB PDN voltage ripple caused by the IC switching current is developed based on an equivalent circuit model from a cavity model. The decomposition is presented both in frequency domain and time domain.
Ying S. Cao   +39 more
core   +1 more source

Subclinical Optic Nerve Involvement in Radiologically Isolated Syndrome: Multimodal Detection and Diagnostic Impact

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objectives We aimed to determine the frequency of subclinical optic nerve (ON) lesions using MRI, optical coherence tomography (OCT), and visual evoked potentials (VEP) in radiologically isolated syndrome (RIS), and to assess their diagnostic and prognostic significance.
Christine Lebrun‐Frenay   +13 more
wiley   +1 more source

Capacitor Voltage Ripple Reduction Methods of Modular Multilevel Converter under Unbalanced Fault Conditions:A Comparison

open access: yes, 2018
Modular Multilevel Converter (MMC) is one of the most promising converter topology in medium/high-voltage applications. Reduction of capacitor voltage ripple during unbalanced grid conditions is very important for stable operation.
Wang, Songda   +2 more
core   +1 more source

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