Results 71 to 80 of about 1,324,147 (348)

Josephson and Persistent Spin Currents in Bose-Einstein Condensates of Magnons

, 2014
Using the Aharonov-Casher (A-C) phase, we present a microscopic theory of the Josephson and persistent spin currents in quasi-equilibrium Bose-Einstein condensates (BECs) of magnons in ferromagnetic insulators. Starting from a microscopic spin model that
Loss, Daniel, Nakata, Kouki, Simon, Pascal, van Hoogdalem, Kevin A.   +3 more
core   +1 more source

Clustering Algorithm Reveals Dopamine‐Motor Mismatch in Cognitively Preserved Parkinson's Disease

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To explore the relationship between dopaminergic denervation and motor impairment in two de novo Parkinson's disease (PD) cohorts. Methods n = 249 PD patients from Parkinson's Progression Markers Initiative (PPMI) and n = 84 from an external clinical cohort.
Rachele Malito, Chiara Meneghini, Alice Galli, Luca Gallo, Pierfrancesco Mitrotti, Paola Dimartino, Marianna Inglese, Cinzia Zatti, Alessandro Lupini, Andrea Pilotto, Alessandro Padovani, Micol Avenali, Enza Maria Valente, Cristina Tassorelli, Silvia P. Caminiti   +14 more
wiley   +1 more source

Decentralised control and fault ride-through of a multi-microgrid system

IET Smart Grid, 2019
A multi-microgrid (MMG) system comprises of a cluster of microgrids interconnected for reliable and efficient operation in grid connected as well as islanded modes. In this study, the fault-ride-through capability of an MMG system is addressed.
Saroja Kanti Sahoo, Nudurupati Krishna Kishore, Nudurupati Krishna Kishore, Avinash Kumar Sinha   +3 more
doaj   +1 more source

Current-Controlled Electrical Point-Source Stimulation of Embryonic Stem Cells [PDF]

Cellular and Molecular Bioengineering, 2009
Stem cell therapy is emerging as a promising clinical approach for myocardial repair. However, the interactions between the graft and host, resulting in inconsistent levels of integration, remain largely unknown. In particular, the influence of electrical activity of the surrounding host tissue on graft differentiation and integration is poorly ...
Michael Q, Chen, Xiaoyan, Xie, Kitchener D, Wilson, Ning, Sun, Joseph C, Wu, Laurent, Giovangrandi, Gregory T A, Kovacs   +6 more
openaire   +2 more sources

A state-of-the-art review on torque distribution strategies aimed at enhancing energy efficiency for fully electric vehicles with independently actuated drivetrains [PDF]

, 2019
© 2019, Levrotto and Bella. All rights reserved. Electric vehicles are the future of private passenger transportation. However, there are still several technological barriers that hinder the large scale adoption of electric vehicles. In particular, their
Lenzo, Basilio, Sforza, A, Timpone, F
core  

Anomalous Spin-Orbit Torques in Magnetic Single-Layer Films

, 2019
Spin-orbit interaction (SOI) couples charge and spin transport, enabling electrical control of magnetization. A quintessential example of SOI-induced transport is the anomalous Hall effect (AHE), first observed in 1880, in which an electric current ...
Allen, Shane R., Amin, Vivek P., Balzar, Davor, Cahill, David G., Davidson, Angie, Fan, Xin, Haney, Paul M., Lorenz, Virginia O., Ohldag, Hendrik, radhakrishnan, Anil, Silva, T. J., Wang, Tao, Wang, Wenrui, Wang, Yang, Xiao, John Q., Zink, Barry L.   +15 more
core   +1 more source

Hopfield Neural Networks for Online Constrained Parameter Estimation With Time‐Varying Dynamics and Disturbances

International Journal of Adaptive Control and Signal Processing, EarlyView.
This paper proposes two projector‐based Hopfield neural network (HNN) estimators for online, constrained parameter estimation under time‐varying data, additive disturbances, and slowly drifting physical parameters. The first is a constraint‐aware HNN that enforces linear equalities and inequalities (via slack neurons) and continuously tracks the ...
Miguel Pedro Silva
wiley   +1 more source

Application effect of PMSM current segmented control method based on DM-MPCC algorithm

Scientific Reports
Given the issues of low accuracy and slow calculation speed in traditional PMSM current segmented control methods, this study proposes an improved model predictive current control method based on duty cycle modulation.
Shuai Ao
doaj   +1 more source

Independent-phase current control of a three-phase VSC under unbalanced operating conditions

The Journal of Engineering, 2018
This study presents an independent phase-current-control architecture for a three-phase voltage source converter. It comprises three independent single-phase phase locked loops (PLLs), and a dual-loop scheme including an outer loop (responsible for ...
Xianghua Shi, Shaahin Filizadeh
doaj   +1 more source

Condition monitoring and severity estimation of rotor demagnetisation fault using magnetic flux measurement data

IET Energy Systems Integration, 2021
This article studies and investigate the magnetic characteristics of a surface mounted permanent magnet (SPM)‐type brushless direct current (BLDC) motor when subjected to demagnetisation fault conditions.
Adil Usman, Vivek. K. Sharma, Bharat. S. Rajpurohit   +2 more
doaj   +1 more source