Results 71 to 80 of about 36,146 (304)

Harmonic resonance damping in Wind Power Plant

2012 IEEE Energy Conversion Congress and Exposition (ECCE), 2012
Harmonic is one of main concern in Wind Power Plant (WPP) as growing usage of power electronic converter is observed. Besides the injection of harmonic by individual wind turbine (WT) as source of harmonic, its propagation in network and problem of resonance is also an issue.
Hasan, K.N.M., Rauma, K., Luna, A., Candela, J.I., Rodriguez, P.   +5 more
openaire   +3 more sources

Multiple Sclerosis Relapse Activity After Ozanimod Discontinuation in DAYBREAK Trial Participants

Annals of Clinical and Translational Neurology, EarlyView.
Multiple Sclerosis Relapse Activity After Ozanimod Discontinuation in DAYBREAK Trial Participants. ABSTRACT Objective Return of disease activity is expected when patients discontinue disease‐modifying therapy (DMT) for multiple sclerosis (MS). Some MS DMTs are associated with higher‐than‐expected disease activity (rebound) after discontinuation.
Ralf Gold, Krzysztof W. Selmaj, Regina Berkovich, Jeffrey A. Cohen, Giancarlo Comi, Eva K. Havrdová, James K. Sheffield, Hetal Desai, Chun‐Yen Cheng, Jon V. Riolo, Andrew Thorpe, Erik DeBoer, Bruce A. C. Cree   +12 more
wiley   +1 more source

Torque Ripple Reduction in Brushless Wound Rotor Vernier Machine Using Third-Harmonic Multi-Layer Winding

World Electric Vehicle Journal
This article aims to realize the brushless operation of a wound rotor vernier machine (WRVM) by a third-harmonic field produced through stator auxiliary winding (X).
Muhammad Zulqarnain, Sheikh Yasir Hammad, Junaid Ikram, Syed Sabir Hussain Bukhari, Laiq Khan   +4 more
doaj   +1 more source

Current Ripple Reduction of Predictive Torque-Controlled Induction Motor Drive Using Delta-Star Switchover

Applied Sciences, 2021
The current and torque ripple of inverter-fed induction motor drives is an inherent problem of control strategies working with switching frequencies in the range of multiple kilohertz, such as direct torque and, more recently, predictive torque control ...
Ondrej Lipcak, Pavel Karlovsky, Pavel Kobrle, Jan Bauer   +3 more
doaj   +1 more source

Vortices and Ring Solitons in Bose-Einstein Condensates

, 2006
The form and stability properties of axisymmetric and spherically symmetric stationary states in two and three dimensions, respectively, are elucidated for Bose-Einstein condensates.
Charles W. Clark, D. J. Frantzeskakis, G. P. Agrawal, L. D. Carr, L. D. Landau, L. P. Pitaevskii, M. Brack, M. Greiner, P. G. Saffman, P. Nozières, R. J. Dodd, R. J. Donnelly, S. Jochim, W. H. Press, W. Ketterle   +14 more
core   +1 more source

Relationship Between Neurologic Symptoms and Signs and FMR1 Genotype in Premutation Carriers

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background and Objectives Fragile X‐associated Tremor/Ataxia Syndrome (FXTAS) is the most severe late‐onset condition caused by a premutation in the FMR1 gene, characterized by expanded CGG triplet repeats of 55–200. Clinical presentations of FXTAS, including gait ataxia, kinetic tremor, cognitive decline, and rare Parkinsonism, are linked to ...
Flora Tassone, Freddy Chafota, Miguel E. Rentería, Randi J. Hagerman, Ellery Santos, Anna Atkinson, Nicholas G. Martin, Elsdon Storey, Danuta Z. Loesch   +8 more
wiley   +1 more source

High proportion and large value harmonic current influence on the magnetic field, loss and temperature distribution for ultrahigh voltage converter transformer

IET Electric Power Applications
The temperature distribution of ultrahigh voltage (UHV) converter transformer is the key to its service life, allowable load and safe operation.
Cong Liu, Jian Hao, Ruijin Liao, Fan Yang, Wenping Li, Zhiwei Li   +5 more
doaj   +1 more source

Brushless Synchronous Machine With Dual-Frequency Inverter for High Torque and Low Ripple Operation

IEEE Access
In this paper, a novel brushless synchronous machine topology is introduced with the integration of a double-frequency inverter system, which plays a pivotal role in generating a sub-harmonic magnetomotive force (MMF) that significantly enhances torque ...
Hafiz Mudassir Munir, Qasim Ali, Jose Rodriguez, Mohamed Abdelrahem   +3 more
doaj   +1 more source

A general framework for the analysis and design of tubular linear permanent magnet machines [PDF]

, 1999
A general framework for the analysis and design of a class of tubular linear permanent magnet machines is described. The open-circuit and armature reaction magnetic field distributions are established analytically in terms of a magnetic vector potential ...
Howe, D., Jewell, G.W., Wang, J.B.
core   +1 more source

A Systematic Comparison of Alpha‐Synuclein Seed Amplification Assays for Increasing Reproducibility

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Seed amplification assays (SAAs) enable ultrasensitive detection of misfolded α‐synuclein across biofluids and tissues. Yet, heterogeneity in protocols limits cross‐study comparability and clinical translation. Here, we review α‐synuclein SAA methods and their performance across various biological matrices.
Manuela Amaral‐do‐Nascimento, Daniela F. Santos, Tuane C. R. G. Vieira, Tiago F. Outeiro   +3 more
wiley   +1 more source